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TOMOYO Linux Cross Reference
Linux/tools/testing/ktest/ktest.pl

Version: ~ [ linux-6.12-rc7 ] ~ [ linux-6.11.7 ] ~ [ linux-6.10.14 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.60 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.116 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.171 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.229 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.285 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.323 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.12 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /tools/testing/ktest/ktest.pl (Architecture i386) and /tools/testing/ktest/ktest.pl (Architecture sparc)


  1 #!/usr/bin/perl -w                                  1 #!/usr/bin/perl -w
  2 # SPDX-License-Identifier: GPL-2.0-only             2 # SPDX-License-Identifier: GPL-2.0-only
  3 #                                                   3 #
  4 # Copyright 2010 - Steven Rostedt <srostedt@red      4 # Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
  5 #                                                   5 #
  6                                                     6 
  7 use strict;                                         7 use strict;
  8 use IPC::Open2;                                     8 use IPC::Open2;
  9 use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);           9 use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
 10 use File::Path qw(mkpath);                         10 use File::Path qw(mkpath);
 11 use File::Copy qw(cp);                             11 use File::Copy qw(cp);
 12 use FileHandle;                                    12 use FileHandle;
 13 use FindBin;                                       13 use FindBin;
 14 use IO::Handle;                                    14 use IO::Handle;
 15                                                    15 
 16 my $VERSION = "0.2";                               16 my $VERSION = "0.2";
 17                                                    17 
 18 $| = 1;                                            18 $| = 1;
 19                                                    19 
 20 my %opt;                                           20 my %opt;
 21 my %repeat_tests;                                  21 my %repeat_tests;
 22 my %repeats;                                       22 my %repeats;
 23 my %evals;                                         23 my %evals;
 24                                                    24 
 25 #default opts                                      25 #default opts
 26 my %default = (                                    26 my %default = (
 27     "MAILER"                    => "sendmail",     27     "MAILER"                    => "sendmail",  # default mailer
 28     "EMAIL_ON_ERROR"            => 1,              28     "EMAIL_ON_ERROR"            => 1,
 29     "EMAIL_WHEN_FINISHED"       => 1,              29     "EMAIL_WHEN_FINISHED"       => 1,
 30     "EMAIL_WHEN_CANCELED"       => 0,              30     "EMAIL_WHEN_CANCELED"       => 0,
 31     "EMAIL_WHEN_STARTED"        => 0,              31     "EMAIL_WHEN_STARTED"        => 0,
 32     "NUM_TESTS"                 => 1,              32     "NUM_TESTS"                 => 1,
 33     "TEST_TYPE"                 => "build",        33     "TEST_TYPE"                 => "build",
 34     "BUILD_TYPE"                => "oldconfig"     34     "BUILD_TYPE"                => "oldconfig",
 35     "MAKE_CMD"                  => "make",         35     "MAKE_CMD"                  => "make",
 36     "CLOSE_CONSOLE_SIGNAL"      => "INT",          36     "CLOSE_CONSOLE_SIGNAL"      => "INT",
 37     "TIMEOUT"                   => 120,            37     "TIMEOUT"                   => 120,
 38     "TMP_DIR"                   => "/tmp/ktest     38     "TMP_DIR"                   => "/tmp/ktest/\${MACHINE}",
 39     "SLEEP_TIME"                => 60,             39     "SLEEP_TIME"                => 60,          # sleep time between tests
 40     "BUILD_NOCLEAN"             => 0,              40     "BUILD_NOCLEAN"             => 0,
 41     "REBOOT_ON_ERROR"           => 0,              41     "REBOOT_ON_ERROR"           => 0,
 42     "POWEROFF_ON_ERROR"         => 0,              42     "POWEROFF_ON_ERROR"         => 0,
 43     "REBOOT_ON_SUCCESS"         => 1,              43     "REBOOT_ON_SUCCESS"         => 1,
 44     "POWEROFF_ON_SUCCESS"       => 0,              44     "POWEROFF_ON_SUCCESS"       => 0,
 45     "BUILD_OPTIONS"             => "",             45     "BUILD_OPTIONS"             => "",
 46     "BISECT_SLEEP_TIME"         => 60,             46     "BISECT_SLEEP_TIME"         => 60,          # sleep time between bisects
 47     "PATCHCHECK_SLEEP_TIME"     => 60,             47     "PATCHCHECK_SLEEP_TIME"     => 60,          # sleep time between patch checks
 48     "CLEAR_LOG"                 => 0,              48     "CLEAR_LOG"                 => 0,
 49     "BISECT_MANUAL"             => 0,              49     "BISECT_MANUAL"             => 0,
 50     "BISECT_SKIP"               => 1,              50     "BISECT_SKIP"               => 1,
 51     "BISECT_TRIES"              => 1,              51     "BISECT_TRIES"              => 1,
 52     "MIN_CONFIG_TYPE"           => "boot",         52     "MIN_CONFIG_TYPE"           => "boot",
 53     "SUCCESS_LINE"              => "login:",       53     "SUCCESS_LINE"              => "login:",
 54     "DETECT_TRIPLE_FAULT"       => 1,              54     "DETECT_TRIPLE_FAULT"       => 1,
 55     "NO_INSTALL"                => 0,              55     "NO_INSTALL"                => 0,
 56     "BOOTED_TIMEOUT"            => 1,              56     "BOOTED_TIMEOUT"            => 1,
 57     "DIE_ON_FAILURE"            => 1,              57     "DIE_ON_FAILURE"            => 1,
 58     "SSH_EXEC"                  => "ssh \$SSH_     58     "SSH_EXEC"                  => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
 59     "SCP_TO_TARGET"             => "scp \$SRC_     59     "SCP_TO_TARGET"             => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
 60     "SCP_TO_TARGET_INSTALL"     => "\${SCP_TO_     60     "SCP_TO_TARGET_INSTALL"     => "\${SCP_TO_TARGET}",
 61     "REBOOT"                    => "ssh \$SSH_     61     "REBOOT"                    => "ssh \$SSH_USER\@\$MACHINE reboot",
 62     "REBOOT_RETURN_CODE"        => 255,            62     "REBOOT_RETURN_CODE"        => 255,
 63     "STOP_AFTER_SUCCESS"        => 10,             63     "STOP_AFTER_SUCCESS"        => 10,
 64     "STOP_AFTER_FAILURE"        => 60,             64     "STOP_AFTER_FAILURE"        => 60,
 65     "STOP_TEST_AFTER"           => 600,            65     "STOP_TEST_AFTER"           => 600,
 66     "MAX_MONITOR_WAIT"          => 1800,           66     "MAX_MONITOR_WAIT"          => 1800,
 67     "GRUB_REBOOT"               => "grub2-rebo     67     "GRUB_REBOOT"               => "grub2-reboot",
 68     "GRUB_BLS_GET"              => "grubby --i     68     "GRUB_BLS_GET"              => "grubby --info=ALL",
 69     "SYSLINUX"                  => "extlinux",     69     "SYSLINUX"                  => "extlinux",
 70     "SYSLINUX_PATH"             => "/boot/extl     70     "SYSLINUX_PATH"             => "/boot/extlinux",
 71     "CONNECT_TIMEOUT"           => 25,             71     "CONNECT_TIMEOUT"           => 25,
 72                                                    72 
 73 # required, and we will ask users if they don'     73 # required, and we will ask users if they don't have them but we keep the default
 74 # value something that is common.                  74 # value something that is common.
 75     "REBOOT_TYPE"               => "grub",         75     "REBOOT_TYPE"               => "grub",
 76     "LOCALVERSION"              => "-test",        76     "LOCALVERSION"              => "-test",
 77     "SSH_USER"                  => "root",         77     "SSH_USER"                  => "root",
 78     "BUILD_TARGET"              => "arch/x86/b     78     "BUILD_TARGET"              => "arch/x86/boot/bzImage",
 79     "TARGET_IMAGE"              => "/boot/vmli     79     "TARGET_IMAGE"              => "/boot/vmlinuz-test",
 80                                                    80 
 81     "LOG_FILE"                  => undef,          81     "LOG_FILE"                  => undef,
 82     "IGNORE_UNUSED"             => 0,              82     "IGNORE_UNUSED"             => 0,
 83 );                                                 83 );
 84                                                    84 
 85 my $test_log_start = 0;                            85 my $test_log_start = 0;
 86                                                    86 
 87 my $ktest_config = "ktest.conf";                   87 my $ktest_config = "ktest.conf";
 88 my $version;                                       88 my $version;
 89 my $have_version = 0;                              89 my $have_version = 0;
 90 my $machine;                                       90 my $machine;
 91 my $last_machine;                                  91 my $last_machine;
 92 my $ssh_user;                                      92 my $ssh_user;
 93 my $tmpdir;                                        93 my $tmpdir;
 94 my $builddir;                                      94 my $builddir;
 95 my $outputdir;                                     95 my $outputdir;
 96 my $output_config;                                 96 my $output_config;
 97 my $test_type;                                     97 my $test_type;
 98 my $build_type;                                    98 my $build_type;
 99 my $build_options;                                 99 my $build_options;
100 my $final_post_ktest;                             100 my $final_post_ktest;
101 my $pre_ktest;                                    101 my $pre_ktest;
102 my $post_ktest;                                   102 my $post_ktest;
103 my $pre_test;                                     103 my $pre_test;
104 my $pre_test_die;                                 104 my $pre_test_die;
105 my $post_test;                                    105 my $post_test;
106 my $pre_build;                                    106 my $pre_build;
107 my $post_build;                                   107 my $post_build;
108 my $pre_build_die;                                108 my $pre_build_die;
109 my $post_build_die;                               109 my $post_build_die;
110 my $reboot_type;                                  110 my $reboot_type;
111 my $reboot_script;                                111 my $reboot_script;
112 my $power_cycle;                                  112 my $power_cycle;
113 my $reboot;                                       113 my $reboot;
114 my $reboot_return_code;                           114 my $reboot_return_code;
115 my $reboot_on_error;                              115 my $reboot_on_error;
116 my $switch_to_good;                               116 my $switch_to_good;
117 my $switch_to_test;                               117 my $switch_to_test;
118 my $poweroff_on_error;                            118 my $poweroff_on_error;
119 my $reboot_on_success;                            119 my $reboot_on_success;
120 my $die_on_failure;                               120 my $die_on_failure;
121 my $powercycle_after_reboot;                      121 my $powercycle_after_reboot;
122 my $poweroff_after_halt;                          122 my $poweroff_after_halt;
123 my $max_monitor_wait;                             123 my $max_monitor_wait;
124 my $ssh_exec;                                     124 my $ssh_exec;
125 my $scp_to_target;                                125 my $scp_to_target;
126 my $scp_to_target_install;                        126 my $scp_to_target_install;
127 my $power_off;                                    127 my $power_off;
128 my $grub_menu;                                    128 my $grub_menu;
129 my $last_grub_menu;                               129 my $last_grub_menu;
130 my $grub_file;                                    130 my $grub_file;
131 my $grub_number;                                  131 my $grub_number;
132 my $grub_reboot;                                  132 my $grub_reboot;
133 my $grub_bls_get;                                 133 my $grub_bls_get;
134 my $syslinux;                                     134 my $syslinux;
135 my $syslinux_path;                                135 my $syslinux_path;
136 my $syslinux_label;                               136 my $syslinux_label;
137 my $target;                                       137 my $target;
138 my $make;                                         138 my $make;
139 my $pre_install;                                  139 my $pre_install;
140 my $post_install;                                 140 my $post_install;
141 my $no_install;                                   141 my $no_install;
142 my $noclean;                                      142 my $noclean;
143 my $minconfig;                                    143 my $minconfig;
144 my $start_minconfig;                              144 my $start_minconfig;
145 my $start_minconfig_defined;                      145 my $start_minconfig_defined;
146 my $output_minconfig;                             146 my $output_minconfig;
147 my $minconfig_type;                               147 my $minconfig_type;
148 my $use_output_minconfig;                         148 my $use_output_minconfig;
149 my $warnings_file;                                149 my $warnings_file;
150 my $ignore_config;                                150 my $ignore_config;
151 my $ignore_errors;                                151 my $ignore_errors;
152 my $addconfig;                                    152 my $addconfig;
153 my $in_bisect = 0;                                153 my $in_bisect = 0;
154 my $bisect_bad_commit = "";                       154 my $bisect_bad_commit = "";
155 my $reverse_bisect;                               155 my $reverse_bisect;
156 my $bisect_manual;                                156 my $bisect_manual;
157 my $bisect_skip;                                  157 my $bisect_skip;
158 my $bisect_tries;                                 158 my $bisect_tries;
159 my $config_bisect_good;                           159 my $config_bisect_good;
160 my $bisect_ret_good;                              160 my $bisect_ret_good;
161 my $bisect_ret_bad;                               161 my $bisect_ret_bad;
162 my $bisect_ret_skip;                              162 my $bisect_ret_skip;
163 my $bisect_ret_abort;                             163 my $bisect_ret_abort;
164 my $bisect_ret_default;                           164 my $bisect_ret_default;
165 my $in_patchcheck = 0;                            165 my $in_patchcheck = 0;
166 my $run_test;                                     166 my $run_test;
167 my $buildlog;                                     167 my $buildlog;
168 my $testlog;                                      168 my $testlog;
169 my $dmesg;                                        169 my $dmesg;
170 my $monitor_fp;                                   170 my $monitor_fp;
171 my $monitor_pid;                                  171 my $monitor_pid;
172 my $monitor_cnt = 0;                              172 my $monitor_cnt = 0;
173 my $sleep_time;                                   173 my $sleep_time;
174 my $bisect_sleep_time;                            174 my $bisect_sleep_time;
175 my $patchcheck_sleep_time;                        175 my $patchcheck_sleep_time;
176 my $ignore_warnings;                              176 my $ignore_warnings;
177 my $store_failures;                               177 my $store_failures;
178 my $store_successes;                              178 my $store_successes;
179 my $test_name;                                    179 my $test_name;
180 my $timeout;                                      180 my $timeout;
181 my $run_timeout;                                  181 my $run_timeout;
182 my $connect_timeout;                              182 my $connect_timeout;
183 my $config_bisect_exec;                           183 my $config_bisect_exec;
184 my $booted_timeout;                               184 my $booted_timeout;
185 my $detect_triplefault;                           185 my $detect_triplefault;
186 my $console;                                      186 my $console;
187 my $close_console_signal;                         187 my $close_console_signal;
188 my $reboot_success_line;                          188 my $reboot_success_line;
189 my $success_line;                                 189 my $success_line;
190 my $stop_after_success;                           190 my $stop_after_success;
191 my $stop_after_failure;                           191 my $stop_after_failure;
192 my $stop_test_after;                              192 my $stop_test_after;
193 my $build_target;                                 193 my $build_target;
194 my $target_image;                                 194 my $target_image;
195 my $checkout;                                     195 my $checkout;
196 my $localversion;                                 196 my $localversion;
197 my $iteration = 0;                                197 my $iteration = 0;
198 my $successes = 0;                                198 my $successes = 0;
199 my $stty_orig;                                    199 my $stty_orig;
200 my $run_command_status = 0;                       200 my $run_command_status = 0;
201                                                   201 
202 my $bisect_good;                                  202 my $bisect_good;
203 my $bisect_bad;                                   203 my $bisect_bad;
204 my $bisect_type;                                  204 my $bisect_type;
205 my $bisect_start;                                 205 my $bisect_start;
206 my $bisect_replay;                                206 my $bisect_replay;
207 my $bisect_files;                                 207 my $bisect_files;
208 my $bisect_reverse;                               208 my $bisect_reverse;
209 my $bisect_check;                                 209 my $bisect_check;
210                                                   210 
211 my $config_bisect;                                211 my $config_bisect;
212 my $config_bisect_type;                           212 my $config_bisect_type;
213 my $config_bisect_check;                          213 my $config_bisect_check;
214                                                   214 
215 my $patchcheck_type;                              215 my $patchcheck_type;
216 my $patchcheck_start;                             216 my $patchcheck_start;
217 my $patchcheck_cherry;                            217 my $patchcheck_cherry;
218 my $patchcheck_end;                               218 my $patchcheck_end;
219                                                   219 
220 my $build_time;                                   220 my $build_time;
221 my $install_time;                                 221 my $install_time;
222 my $reboot_time;                                  222 my $reboot_time;
223 my $test_time;                                    223 my $test_time;
224                                                   224 
225 my $warning_found = 0;                            225 my $warning_found = 0;
226                                                   226 
227 my $pwd;                                          227 my $pwd;
228 my $dirname = $FindBin::Bin;                      228 my $dirname = $FindBin::Bin;
229                                                   229 
230 my $mailto;                                       230 my $mailto;
231 my $mailer;                                       231 my $mailer;
232 my $mail_path;                                    232 my $mail_path;
233 my $mail_max_size;                                233 my $mail_max_size;
234 my $mail_command;                                 234 my $mail_command;
235 my $email_on_error;                               235 my $email_on_error;
236 my $email_when_finished;                          236 my $email_when_finished;
237 my $email_when_started;                           237 my $email_when_started;
238 my $email_when_canceled;                          238 my $email_when_canceled;
239                                                   239 
240 my $script_start_time = localtime();              240 my $script_start_time = localtime();
241                                                   241 
242 # set when a test is something other that just    242 # set when a test is something other that just building or install
243 # which would require more options.               243 # which would require more options.
244 my $buildonly = 1;                                244 my $buildonly = 1;
245                                                   245 
246 # tell build not to worry about warnings, even    246 # tell build not to worry about warnings, even when WARNINGS_FILE is set
247 my $warnings_ok = 0;                              247 my $warnings_ok = 0;
248                                                   248 
249 # set when creating a new config                  249 # set when creating a new config
250 my $newconfig = 0;                                250 my $newconfig = 0;
251                                                   251 
252 my %entered_configs;                              252 my %entered_configs;
253 my %config_help;                                  253 my %config_help;
254 my %variable;                                     254 my %variable;
255                                                   255 
256 # force_config is the list of configs that we     256 # force_config is the list of configs that we force enabled (or disabled)
257 # in a .config file. The MIN_CONFIG and ADD_CO    257 # in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
258 my %force_config;                                 258 my %force_config;
259                                                   259 
260 # do not force reboots on config problems         260 # do not force reboots on config problems
261 my $no_reboot = 1;                                261 my $no_reboot = 1;
262                                                   262 
263 # reboot on success                               263 # reboot on success
264 my $reboot_success = 0;                           264 my $reboot_success = 0;
265                                                   265 
266 my %option_map = (                                266 my %option_map = (
267     "MAILTO"                    => \$mailto,      267     "MAILTO"                    => \$mailto,
268     "MAILER"                    => \$mailer,      268     "MAILER"                    => \$mailer,
269     "MAIL_PATH"                 => \$mail_path    269     "MAIL_PATH"                 => \$mail_path,
270     "MAIL_MAX_SIZE"             => \$mail_max_    270     "MAIL_MAX_SIZE"             => \$mail_max_size,
271     "MAIL_COMMAND"              => \$mail_comm    271     "MAIL_COMMAND"              => \$mail_command,
272     "EMAIL_ON_ERROR"            => \$email_on_    272     "EMAIL_ON_ERROR"            => \$email_on_error,
273     "EMAIL_WHEN_FINISHED"       => \$email_whe    273     "EMAIL_WHEN_FINISHED"       => \$email_when_finished,
274     "EMAIL_WHEN_STARTED"        => \$email_whe    274     "EMAIL_WHEN_STARTED"        => \$email_when_started,
275     "EMAIL_WHEN_CANCELED"       => \$email_whe    275     "EMAIL_WHEN_CANCELED"       => \$email_when_canceled,
276     "MACHINE"                   => \$machine,     276     "MACHINE"                   => \$machine,
277     "SSH_USER"                  => \$ssh_user,    277     "SSH_USER"                  => \$ssh_user,
278     "TMP_DIR"                   => \$tmpdir,      278     "TMP_DIR"                   => \$tmpdir,
279     "OUTPUT_DIR"                => \$outputdir    279     "OUTPUT_DIR"                => \$outputdir,
280     "BUILD_DIR"                 => \$builddir,    280     "BUILD_DIR"                 => \$builddir,
281     "TEST_TYPE"                 => \$test_type    281     "TEST_TYPE"                 => \$test_type,
282     "PRE_KTEST"                 => \$pre_ktest    282     "PRE_KTEST"                 => \$pre_ktest,
283     "POST_KTEST"                => \$post_ktes    283     "POST_KTEST"                => \$post_ktest,
284     "PRE_TEST"                  => \$pre_test,    284     "PRE_TEST"                  => \$pre_test,
285     "PRE_TEST_DIE"              => \$pre_test_    285     "PRE_TEST_DIE"              => \$pre_test_die,
286     "POST_TEST"                 => \$post_test    286     "POST_TEST"                 => \$post_test,
287     "BUILD_TYPE"                => \$build_typ    287     "BUILD_TYPE"                => \$build_type,
288     "BUILD_OPTIONS"             => \$build_opt    288     "BUILD_OPTIONS"             => \$build_options,
289     "PRE_BUILD"                 => \$pre_build    289     "PRE_BUILD"                 => \$pre_build,
290     "POST_BUILD"                => \$post_buil    290     "POST_BUILD"                => \$post_build,
291     "PRE_BUILD_DIE"             => \$pre_build    291     "PRE_BUILD_DIE"             => \$pre_build_die,
292     "POST_BUILD_DIE"            => \$post_buil    292     "POST_BUILD_DIE"            => \$post_build_die,
293     "POWER_CYCLE"               => \$power_cyc    293     "POWER_CYCLE"               => \$power_cycle,
294     "REBOOT"                    => \$reboot,      294     "REBOOT"                    => \$reboot,
295     "REBOOT_RETURN_CODE"        => \$reboot_re    295     "REBOOT_RETURN_CODE"        => \$reboot_return_code,
296     "BUILD_NOCLEAN"             => \$noclean,     296     "BUILD_NOCLEAN"             => \$noclean,
297     "MIN_CONFIG"                => \$minconfig    297     "MIN_CONFIG"                => \$minconfig,
298     "OUTPUT_MIN_CONFIG"         => \$output_mi    298     "OUTPUT_MIN_CONFIG"         => \$output_minconfig,
299     "START_MIN_CONFIG"          => \$start_min    299     "START_MIN_CONFIG"          => \$start_minconfig,
300     "MIN_CONFIG_TYPE"           => \$minconfig    300     "MIN_CONFIG_TYPE"           => \$minconfig_type,
301     "USE_OUTPUT_MIN_CONFIG"     => \$use_outpu    301     "USE_OUTPUT_MIN_CONFIG"     => \$use_output_minconfig,
302     "WARNINGS_FILE"             => \$warnings_    302     "WARNINGS_FILE"             => \$warnings_file,
303     "IGNORE_CONFIG"             => \$ignore_co    303     "IGNORE_CONFIG"             => \$ignore_config,
304     "TEST"                      => \$run_test,    304     "TEST"                      => \$run_test,
305     "ADD_CONFIG"                => \$addconfig    305     "ADD_CONFIG"                => \$addconfig,
306     "REBOOT_TYPE"               => \$reboot_ty    306     "REBOOT_TYPE"               => \$reboot_type,
307     "GRUB_MENU"                 => \$grub_menu    307     "GRUB_MENU"                 => \$grub_menu,
308     "GRUB_FILE"                 => \$grub_file    308     "GRUB_FILE"                 => \$grub_file,
309     "GRUB_REBOOT"               => \$grub_rebo    309     "GRUB_REBOOT"               => \$grub_reboot,
310     "GRUB_BLS_GET"              => \$grub_bls_    310     "GRUB_BLS_GET"              => \$grub_bls_get,
311     "SYSLINUX"                  => \$syslinux,    311     "SYSLINUX"                  => \$syslinux,
312     "SYSLINUX_PATH"             => \$syslinux_    312     "SYSLINUX_PATH"             => \$syslinux_path,
313     "SYSLINUX_LABEL"            => \$syslinux_    313     "SYSLINUX_LABEL"            => \$syslinux_label,
314     "PRE_INSTALL"               => \$pre_insta    314     "PRE_INSTALL"               => \$pre_install,
315     "POST_INSTALL"              => \$post_inst    315     "POST_INSTALL"              => \$post_install,
316     "NO_INSTALL"                => \$no_instal    316     "NO_INSTALL"                => \$no_install,
317     "REBOOT_SCRIPT"             => \$reboot_sc    317     "REBOOT_SCRIPT"             => \$reboot_script,
318     "REBOOT_ON_ERROR"           => \$reboot_on    318     "REBOOT_ON_ERROR"           => \$reboot_on_error,
319     "SWITCH_TO_GOOD"            => \$switch_to    319     "SWITCH_TO_GOOD"            => \$switch_to_good,
320     "SWITCH_TO_TEST"            => \$switch_to    320     "SWITCH_TO_TEST"            => \$switch_to_test,
321     "POWEROFF_ON_ERROR"         => \$poweroff_    321     "POWEROFF_ON_ERROR"         => \$poweroff_on_error,
322     "REBOOT_ON_SUCCESS"         => \$reboot_on    322     "REBOOT_ON_SUCCESS"         => \$reboot_on_success,
323     "DIE_ON_FAILURE"            => \$die_on_fa    323     "DIE_ON_FAILURE"            => \$die_on_failure,
324     "POWER_OFF"                 => \$power_off    324     "POWER_OFF"                 => \$power_off,
325     "POWERCYCLE_AFTER_REBOOT"   => \$powercycl    325     "POWERCYCLE_AFTER_REBOOT"   => \$powercycle_after_reboot,
326     "POWEROFF_AFTER_HALT"       => \$poweroff_    326     "POWEROFF_AFTER_HALT"       => \$poweroff_after_halt,
327     "MAX_MONITOR_WAIT"          => \$max_monit    327     "MAX_MONITOR_WAIT"          => \$max_monitor_wait,
328     "SLEEP_TIME"                => \$sleep_tim    328     "SLEEP_TIME"                => \$sleep_time,
329     "BISECT_SLEEP_TIME"         => \$bisect_sl    329     "BISECT_SLEEP_TIME"         => \$bisect_sleep_time,
330     "PATCHCHECK_SLEEP_TIME"     => \$patchchec    330     "PATCHCHECK_SLEEP_TIME"     => \$patchcheck_sleep_time,
331     "IGNORE_WARNINGS"           => \$ignore_wa    331     "IGNORE_WARNINGS"           => \$ignore_warnings,
332     "IGNORE_ERRORS"             => \$ignore_er    332     "IGNORE_ERRORS"             => \$ignore_errors,
333     "BISECT_MANUAL"             => \$bisect_ma    333     "BISECT_MANUAL"             => \$bisect_manual,
334     "BISECT_SKIP"               => \$bisect_sk    334     "BISECT_SKIP"               => \$bisect_skip,
335     "BISECT_TRIES"              => \$bisect_tr    335     "BISECT_TRIES"              => \$bisect_tries,
336     "CONFIG_BISECT_GOOD"        => \$config_bi    336     "CONFIG_BISECT_GOOD"        => \$config_bisect_good,
337     "BISECT_RET_GOOD"           => \$bisect_re    337     "BISECT_RET_GOOD"           => \$bisect_ret_good,
338     "BISECT_RET_BAD"            => \$bisect_re    338     "BISECT_RET_BAD"            => \$bisect_ret_bad,
339     "BISECT_RET_SKIP"           => \$bisect_re    339     "BISECT_RET_SKIP"           => \$bisect_ret_skip,
340     "BISECT_RET_ABORT"          => \$bisect_re    340     "BISECT_RET_ABORT"          => \$bisect_ret_abort,
341     "BISECT_RET_DEFAULT"        => \$bisect_re    341     "BISECT_RET_DEFAULT"        => \$bisect_ret_default,
342     "STORE_FAILURES"            => \$store_fai    342     "STORE_FAILURES"            => \$store_failures,
343     "STORE_SUCCESSES"           => \$store_suc    343     "STORE_SUCCESSES"           => \$store_successes,
344     "TEST_NAME"                 => \$test_name    344     "TEST_NAME"                 => \$test_name,
345     "TIMEOUT"                   => \$timeout,     345     "TIMEOUT"                   => \$timeout,
346     "RUN_TIMEOUT"               => \$run_timeo    346     "RUN_TIMEOUT"               => \$run_timeout,
347     "CONNECT_TIMEOUT"           => \$connect_t    347     "CONNECT_TIMEOUT"           => \$connect_timeout,
348     "CONFIG_BISECT_EXEC"        => \$config_bi    348     "CONFIG_BISECT_EXEC"        => \$config_bisect_exec,
349     "BOOTED_TIMEOUT"            => \$booted_ti    349     "BOOTED_TIMEOUT"            => \$booted_timeout,
350     "CONSOLE"                   => \$console,     350     "CONSOLE"                   => \$console,
351     "CLOSE_CONSOLE_SIGNAL"      => \$close_con    351     "CLOSE_CONSOLE_SIGNAL"      => \$close_console_signal,
352     "DETECT_TRIPLE_FAULT"       => \$detect_tr    352     "DETECT_TRIPLE_FAULT"       => \$detect_triplefault,
353     "SUCCESS_LINE"              => \$success_l    353     "SUCCESS_LINE"              => \$success_line,
354     "REBOOT_SUCCESS_LINE"       => \$reboot_su    354     "REBOOT_SUCCESS_LINE"       => \$reboot_success_line,
355     "STOP_AFTER_SUCCESS"        => \$stop_afte    355     "STOP_AFTER_SUCCESS"        => \$stop_after_success,
356     "STOP_AFTER_FAILURE"        => \$stop_afte    356     "STOP_AFTER_FAILURE"        => \$stop_after_failure,
357     "STOP_TEST_AFTER"           => \$stop_test    357     "STOP_TEST_AFTER"           => \$stop_test_after,
358     "BUILD_TARGET"              => \$build_tar    358     "BUILD_TARGET"              => \$build_target,
359     "SSH_EXEC"                  => \$ssh_exec,    359     "SSH_EXEC"                  => \$ssh_exec,
360     "SCP_TO_TARGET"             => \$scp_to_ta    360     "SCP_TO_TARGET"             => \$scp_to_target,
361     "SCP_TO_TARGET_INSTALL"     => \$scp_to_ta    361     "SCP_TO_TARGET_INSTALL"     => \$scp_to_target_install,
362     "CHECKOUT"                  => \$checkout,    362     "CHECKOUT"                  => \$checkout,
363     "TARGET_IMAGE"              => \$target_im    363     "TARGET_IMAGE"              => \$target_image,
364     "LOCALVERSION"              => \$localvers    364     "LOCALVERSION"              => \$localversion,
365                                                   365 
366     "BISECT_GOOD"               => \$bisect_go    366     "BISECT_GOOD"               => \$bisect_good,
367     "BISECT_BAD"                => \$bisect_ba    367     "BISECT_BAD"                => \$bisect_bad,
368     "BISECT_TYPE"               => \$bisect_ty    368     "BISECT_TYPE"               => \$bisect_type,
369     "BISECT_START"              => \$bisect_st    369     "BISECT_START"              => \$bisect_start,
370     "BISECT_REPLAY"             => \$bisect_re    370     "BISECT_REPLAY"             => \$bisect_replay,
371     "BISECT_FILES"              => \$bisect_fi    371     "BISECT_FILES"              => \$bisect_files,
372     "BISECT_REVERSE"            => \$bisect_re    372     "BISECT_REVERSE"            => \$bisect_reverse,
373     "BISECT_CHECK"              => \$bisect_ch    373     "BISECT_CHECK"              => \$bisect_check,
374                                                   374 
375     "CONFIG_BISECT"             => \$config_bi    375     "CONFIG_BISECT"             => \$config_bisect,
376     "CONFIG_BISECT_TYPE"        => \$config_bi    376     "CONFIG_BISECT_TYPE"        => \$config_bisect_type,
377     "CONFIG_BISECT_CHECK"       => \$config_bi    377     "CONFIG_BISECT_CHECK"       => \$config_bisect_check,
378                                                   378 
379     "PATCHCHECK_TYPE"           => \$patchchec    379     "PATCHCHECK_TYPE"           => \$patchcheck_type,
380     "PATCHCHECK_START"          => \$patchchec    380     "PATCHCHECK_START"          => \$patchcheck_start,
381     "PATCHCHECK_CHERRY"         => \$patchchec    381     "PATCHCHECK_CHERRY"         => \$patchcheck_cherry,
382     "PATCHCHECK_END"            => \$patchchec    382     "PATCHCHECK_END"            => \$patchcheck_end,
383 );                                                383 );
384                                                   384 
385 # Options may be used by other options, record    385 # Options may be used by other options, record them.
386 my %used_options;                                 386 my %used_options;
387                                                   387 
388 # default variables that can be used              388 # default variables that can be used
389 chomp ($variable{"PWD"} = `pwd`);                 389 chomp ($variable{"PWD"} = `pwd`);
390 $pwd = $variable{"PWD"};                          390 $pwd = $variable{"PWD"};
391                                                   391 
392 $config_help{"MACHINE"} = << "EOF"                392 $config_help{"MACHINE"} = << "EOF"
393  The machine hostname that you will test.         393  The machine hostname that you will test.
394  For build only tests, it is still needed to d    394  For build only tests, it is still needed to differentiate log files.
395 EOF                                               395 EOF
396     ;                                             396     ;
397 $config_help{"SSH_USER"} = << "EOF"               397 $config_help{"SSH_USER"} = << "EOF"
398  The box is expected to have ssh on normal boo    398  The box is expected to have ssh on normal bootup, provide the user
399   (most likely root, since you need privileged    399   (most likely root, since you need privileged operations)
400 EOF                                               400 EOF
401     ;                                             401     ;
402 $config_help{"BUILD_DIR"} = << "EOF"              402 $config_help{"BUILD_DIR"} = << "EOF"
403  The directory that contains the Linux source     403  The directory that contains the Linux source code (full path).
404  You can use \${PWD} that will be the path whe    404  You can use \${PWD} that will be the path where ktest.pl is run, or use
405  \${THIS_DIR} which is assigned \${PWD} but ma    405  \${THIS_DIR} which is assigned \${PWD} but may be changed later.
406 EOF                                               406 EOF
407     ;                                             407     ;
408 $config_help{"OUTPUT_DIR"} = << "EOF"             408 $config_help{"OUTPUT_DIR"} = << "EOF"
409  The directory that the objects will be built     409  The directory that the objects will be built (full path).
410  (can not be same as BUILD_DIR)                   410  (can not be same as BUILD_DIR)
411  You can use \${PWD} that will be the path whe    411  You can use \${PWD} that will be the path where ktest.pl is run, or use
412  \${THIS_DIR} which is assigned \${PWD} but ma    412  \${THIS_DIR} which is assigned \${PWD} but may be changed later.
413 EOF                                               413 EOF
414     ;                                             414     ;
415 $config_help{"BUILD_TARGET"} = << "EOF"           415 $config_help{"BUILD_TARGET"} = << "EOF"
416  The location of the compiled file to copy to     416  The location of the compiled file to copy to the target.
417  (relative to OUTPUT_DIR)                         417  (relative to OUTPUT_DIR)
418 EOF                                               418 EOF
419     ;                                             419     ;
420 $config_help{"BUILD_OPTIONS"} = << "EOF"          420 $config_help{"BUILD_OPTIONS"} = << "EOF"
421  Options to add to \"make\" when building.        421  Options to add to \"make\" when building.
422  i.e.  -j20                                       422  i.e.  -j20
423 EOF                                               423 EOF
424     ;                                             424     ;
425 $config_help{"TARGET_IMAGE"} = << "EOF"           425 $config_help{"TARGET_IMAGE"} = << "EOF"
426  The place to put your image on the test machi    426  The place to put your image on the test machine.
427 EOF                                               427 EOF
428     ;                                             428     ;
429 $config_help{"POWER_CYCLE"} = << "EOF"            429 $config_help{"POWER_CYCLE"} = << "EOF"
430  A script or command to reboot the box.           430  A script or command to reboot the box.
431                                                   431 
432  Here is a digital loggers power switch exampl    432  Here is a digital loggers power switch example
433  POWER_CYCLE = wget --no-proxy -O /dev/null -q    433  POWER_CYCLE = wget --no-proxy -O /dev/null -q  --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
434                                                   434 
435  Here is an example to reboot a virtual box on    435  Here is an example to reboot a virtual box on the current host
436  with the name "Guest".                           436  with the name "Guest".
437  POWER_CYCLE = virsh destroy Guest; sleep 5; v    437  POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
438 EOF                                               438 EOF
439     ;                                             439     ;
440 $config_help{"CONSOLE"} = << "EOF"                440 $config_help{"CONSOLE"} = << "EOF"
441  The script or command that reads the console     441  The script or command that reads the console
442                                                   442 
443   If you use ttywatch server, something like t    443   If you use ttywatch server, something like the following would work.
444 CONSOLE = nc -d localhost 3001                    444 CONSOLE = nc -d localhost 3001
445                                                   445 
446  For a virtual machine with guest name "Guest"    446  For a virtual machine with guest name "Guest".
447 CONSOLE =  virsh console Guest                    447 CONSOLE =  virsh console Guest
448 EOF                                               448 EOF
449     ;                                             449     ;
450 $config_help{"LOCALVERSION"} = << "EOF"           450 $config_help{"LOCALVERSION"} = << "EOF"
451  Required version ending to differentiate the     451  Required version ending to differentiate the test
452  from other linux builds on the system.           452  from other linux builds on the system.
453 EOF                                               453 EOF
454     ;                                             454     ;
455 $config_help{"REBOOT_TYPE"} = << "EOF"            455 $config_help{"REBOOT_TYPE"} = << "EOF"
456  Way to reboot the box to the test kernel.        456  Way to reboot the box to the test kernel.
457  Only valid options so far are "grub", "grub2"    457  Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
458                                                   458 
459  If you specify grub, it will assume grub vers    459  If you specify grub, it will assume grub version 1
460  and will search in /boot/grub/menu.lst for th    460  and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
461  and select that target to reboot to the kerne    461  and select that target to reboot to the kernel. If this is not
462  your setup, then specify "script" and have a     462  your setup, then specify "script" and have a command or script
463  specified in REBOOT_SCRIPT to boot to the tar    463  specified in REBOOT_SCRIPT to boot to the target.
464                                                   464 
465  The entry in /boot/grub/menu.lst must be ente    465  The entry in /boot/grub/menu.lst must be entered in manually.
466  The test will not modify that file.              466  The test will not modify that file.
467                                                   467 
468  If you specify grub2, then you also need to s    468  If you specify grub2, then you also need to specify both \$GRUB_MENU
469  and \$GRUB_FILE.                                 469  and \$GRUB_FILE.
470                                                   470 
471  If you specify grub2bls, then you also need t    471  If you specify grub2bls, then you also need to specify \$GRUB_MENU.
472                                                   472 
473  If you specify syslinux, then you may use SYS    473  If you specify syslinux, then you may use SYSLINUX to define the syslinux
474  command (defaults to extlinux), and SYSLINUX_    474  command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
475  the syslinux install (defaults to /boot/extli    475  the syslinux install (defaults to /boot/extlinux). But you have to specify
476  SYSLINUX_LABEL to define the label to boot to    476  SYSLINUX_LABEL to define the label to boot to for the test kernel.
477 EOF                                               477 EOF
478     ;                                             478     ;
479 $config_help{"GRUB_MENU"} = << "EOF"              479 $config_help{"GRUB_MENU"} = << "EOF"
480  The grub title name for the test kernel to bo    480  The grub title name for the test kernel to boot
481  (Only mandatory if REBOOT_TYPE = grub or grub    481  (Only mandatory if REBOOT_TYPE = grub or grub2)
482                                                   482 
483  Note, ktest.pl will not update the grub menu.    483  Note, ktest.pl will not update the grub menu.lst, you need to
484  manually add an option for the test. ktest.pl    484  manually add an option for the test. ktest.pl will search
485  the grub menu.lst for this option to find wha    485  the grub menu.lst for this option to find what kernel to
486  reboot into.                                     486  reboot into.
487                                                   487 
488  For example, if in the /boot/grub/menu.lst th    488  For example, if in the /boot/grub/menu.lst the test kernel title has:
489  title Test Kernel                                489  title Test Kernel
490  kernel vmlinuz-test                              490  kernel vmlinuz-test
491  GRUB_MENU = Test Kernel                          491  GRUB_MENU = Test Kernel
492                                                   492 
493  For grub2, a search of \$GRUB_FILE is perform    493  For grub2, a search of \$GRUB_FILE is performed for the lines
494  that begin with "menuentry". It will not dete    494  that begin with "menuentry". It will not detect submenus. The
495  menu must be a non-nested menu. Add the quote    495  menu must be a non-nested menu. Add the quotes used in the menu
496  to guarantee your selection, as the first men    496  to guarantee your selection, as the first menuentry with the content
497  of \$GRUB_MENU that is found will be used.       497  of \$GRUB_MENU that is found will be used.
498                                                   498 
499  For grub2bls, \$GRUB_MENU is searched on the     499  For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
500  command for the lines that begin with "title"    500  command for the lines that begin with "title".
501 EOF                                               501 EOF
502     ;                                             502     ;
503 $config_help{"GRUB_FILE"} = << "EOF"              503 $config_help{"GRUB_FILE"} = << "EOF"
504  If grub2 is used, the full path for the grub.    504  If grub2 is used, the full path for the grub.cfg file is placed
505  here. Use something like /boot/grub2/grub.cfg    505  here. Use something like /boot/grub2/grub.cfg to search.
506 EOF                                               506 EOF
507     ;                                             507     ;
508 $config_help{"SYSLINUX_LABEL"} = << "EOF"         508 $config_help{"SYSLINUX_LABEL"} = << "EOF"
509  If syslinux is used, the label that boots the    509  If syslinux is used, the label that boots the target kernel must
510  be specified with SYSLINUX_LABEL.                510  be specified with SYSLINUX_LABEL.
511 EOF                                               511 EOF
512     ;                                             512     ;
513 $config_help{"REBOOT_SCRIPT"} = << "EOF"          513 $config_help{"REBOOT_SCRIPT"} = << "EOF"
514  A script to reboot the target into the test k    514  A script to reboot the target into the test kernel
515  (Only mandatory if REBOOT_TYPE = script)         515  (Only mandatory if REBOOT_TYPE = script)
516 EOF                                               516 EOF
517     ;                                             517     ;
518                                                   518 
519 # used with process_expression()                  519 # used with process_expression()
520 my $d = 0;                                        520 my $d = 0;
521                                                   521 
522 # defined before get_test_name()                  522 # defined before get_test_name()
523 my $in_die = 0;                                   523 my $in_die = 0;
524                                                   524 
525 # defined before process_warning_line()           525 # defined before process_warning_line()
526 my $check_build_re = ".*:.*(warning|error|Erro    526 my $check_build_re = ".*:.*(warning|error|Error):.*";
527 my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{9    527 my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
528                                                   528 
529 # defined before child_finished()                 529 # defined before child_finished()
530 my $child_done;                                   530 my $child_done;
531                                                   531 
532 # config_ignore holds the configs that were se    532 # config_ignore holds the configs that were set (or unset) for
533 # a good config and we will ignore these confi    533 # a good config and we will ignore these configs for the rest
534 # of a config bisect. These configs stay as th    534 # of a config bisect. These configs stay as they were.
535 my %config_ignore;                                535 my %config_ignore;
536                                                   536 
537 # config_set holds what all configs were set a    537 # config_set holds what all configs were set as.
538 my %config_set;                                   538 my %config_set;
539                                                   539 
540 # config_off holds the set of configs that the    540 # config_off holds the set of configs that the bad config had disabled.
541 # We need to record them and set them in the .    541 # We need to record them and set them in the .config when running
542 # olddefconfig, because olddefconfig keeps the    542 # olddefconfig, because olddefconfig keeps the defaults.
543 my %config_off;                                   543 my %config_off;
544                                                   544 
545 # config_off_tmp holds a set of configs to tur    545 # config_off_tmp holds a set of configs to turn off for now
546 my @config_off_tmp;                               546 my @config_off_tmp;
547                                                   547 
548 # config_list is the set of configs that are b    548 # config_list is the set of configs that are being tested
549 my %config_list;                                  549 my %config_list;
550 my %null_config;                                  550 my %null_config;
551                                                   551 
552 my %dependency;                                   552 my %dependency;
553                                                   553 
554 # found above run_config_bisect()                 554 # found above run_config_bisect()
555 my $pass = 1;                                     555 my $pass = 1;
556                                                   556 
557 # found above add_dep()                           557 # found above add_dep()
558                                                   558 
559 my %depends;                                      559 my %depends;
560 my %depcount;                                     560 my %depcount;
561 my $iflevel = 0;                                  561 my $iflevel = 0;
562 my @ifdeps;                                       562 my @ifdeps;
563                                                   563 
564 # prevent recursion                               564 # prevent recursion
565 my %read_kconfigs;                                565 my %read_kconfigs;
566                                                   566 
567 # found above test_this_config()                  567 # found above test_this_config()
568 my %min_configs;                                  568 my %min_configs;
569 my %keep_configs;                                 569 my %keep_configs;
570 my %save_configs;                                 570 my %save_configs;
571 my %processed_configs;                            571 my %processed_configs;
572 my %nochange_config;                              572 my %nochange_config;
573                                                   573 
574 #                                                 574 #
575 # These are first defined here, main function     575 # These are first defined here, main function later on
576 #                                                 576 #
577 sub run_command;                                  577 sub run_command;
578 sub start_monitor;                                578 sub start_monitor;
579 sub end_monitor;                                  579 sub end_monitor;
580 sub wait_for_monitor;                             580 sub wait_for_monitor;
581                                                   581 
582 sub _logit {                                      582 sub _logit {
583     if (defined($opt{"LOG_FILE"})) {              583     if (defined($opt{"LOG_FILE"})) {
584         print LOG @_;                             584         print LOG @_;
585     }                                             585     }
586 }                                                 586 }
587                                                   587 
588 sub logit {                                       588 sub logit {
589     if (defined($opt{"LOG_FILE"})) {              589     if (defined($opt{"LOG_FILE"})) {
590         _logit @_;                                590         _logit @_;
591     } else {                                      591     } else {
592         print @_;                                 592         print @_;
593     }                                             593     }
594 }                                                 594 }
595                                                   595 
596 sub doprint {                                     596 sub doprint {
597     print @_;                                     597     print @_;
598     _logit @_;                                    598     _logit @_;
599 }                                                 599 }
600                                                   600 
601 sub read_prompt {                                 601 sub read_prompt {
602     my ($cancel, $prompt) = @_;                   602     my ($cancel, $prompt) = @_;
603                                                   603 
604     my $ans;                                      604     my $ans;
605                                                   605 
606     for (;;) {                                    606     for (;;) {
607         if ($cancel) {                            607         if ($cancel) {
608             print "$prompt [y/n/C] ";             608             print "$prompt [y/n/C] ";
609         } else {                                  609         } else {
610             print "$prompt [Y/n] ";               610             print "$prompt [Y/n] ";
611         }                                         611         }
612         $ans = <STDIN>;                           612         $ans = <STDIN>;
613         chomp $ans;                               613         chomp $ans;
614         if ($ans =~ /^\s*$/) {                    614         if ($ans =~ /^\s*$/) {
615             if ($cancel) {                        615             if ($cancel) {
616                 $ans = "c";                       616                 $ans = "c";
617             } else {                              617             } else {
618                 $ans = "y";                       618                 $ans = "y";
619             }                                     619             }
620         }                                         620         }
621         last if ($ans =~ /^y$/i || $ans =~ /^n    621         last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
622         if ($cancel) {                            622         if ($cancel) {
623             last if ($ans =~ /^c$/i);             623             last if ($ans =~ /^c$/i);
624             print "Please answer either 'y', '    624             print "Please answer either 'y', 'n' or 'c'.\n";
625         } else {                                  625         } else {
626             print "Please answer either 'y' or    626             print "Please answer either 'y' or 'n'.\n";
627         }                                         627         }
628     }                                             628     }
629     if ($ans =~ /^c/i) {                          629     if ($ans =~ /^c/i) {
630         exit;                                     630         exit;
631     }                                             631     }
632     if ($ans !~ /^y$/i) {                         632     if ($ans !~ /^y$/i) {
633         return 0;                                 633         return 0;
634     }                                             634     }
635     return 1;                                     635     return 1;
636 }                                                 636 }
637                                                   637 
638 sub read_yn {                                     638 sub read_yn {
639     my ($prompt) = @_;                            639     my ($prompt) = @_;
640                                                   640 
641     return read_prompt 0, $prompt;                641     return read_prompt 0, $prompt;
642 }                                                 642 }
643                                                   643 
644 sub read_ync {                                    644 sub read_ync {
645     my ($prompt) = @_;                            645     my ($prompt) = @_;
646                                                   646 
647     return read_prompt 1, $prompt;                647     return read_prompt 1, $prompt;
648 }                                                 648 }
649                                                   649 
650 sub get_mandatory_config {                        650 sub get_mandatory_config {
651     my ($config) = @_;                            651     my ($config) = @_;
652     my $ans;                                      652     my $ans;
653                                                   653 
654     return if (defined($opt{$config}));           654     return if (defined($opt{$config}));
655                                                   655 
656     if (defined($config_help{$config})) {         656     if (defined($config_help{$config})) {
657         print "\n";                               657         print "\n";
658         print $config_help{$config};              658         print $config_help{$config};
659     }                                             659     }
660                                                   660 
661     for (;;) {                                    661     for (;;) {
662         print "$config = ";                       662         print "$config = ";
663         if (defined($default{$config}) && leng    663         if (defined($default{$config}) && length($default{$config})) {
664             print "\[$default{$config}\] ";       664             print "\[$default{$config}\] ";
665         }                                         665         }
666         $ans = <STDIN>;                           666         $ans = <STDIN>;
667         $ans =~ s/^\s*(.*\S)\s*$/$1/;             667         $ans =~ s/^\s*(.*\S)\s*$/$1/;
668         if ($ans =~ /^\s*$/) {                    668         if ($ans =~ /^\s*$/) {
669             if ($default{$config}) {              669             if ($default{$config}) {
670                 $ans = $default{$config};         670                 $ans = $default{$config};
671             } else {                              671             } else {
672                 print "Your answer can not be     672                 print "Your answer can not be blank\n";
673                 next;                             673                 next;
674             }                                     674             }
675         }                                         675         }
676         $entered_configs{$config} = ${ans};       676         $entered_configs{$config} = ${ans};
677         last;                                     677         last;
678     }                                             678     }
679 }                                                 679 }
680                                                   680 
681 sub show_time {                                   681 sub show_time {
682     my ($time) = @_;                              682     my ($time) = @_;
683                                                   683 
684     my $hours = 0;                                684     my $hours = 0;
685     my $minutes = 0;                              685     my $minutes = 0;
686                                                   686 
687     if ($time > 3600) {                           687     if ($time > 3600) {
688         $hours = int($time / 3600);               688         $hours = int($time / 3600);
689         $time -= $hours * 3600;                   689         $time -= $hours * 3600;
690     }                                             690     }
691     if ($time > 60) {                             691     if ($time > 60) {
692         $minutes = int($time / 60);               692         $minutes = int($time / 60);
693         $time -= $minutes * 60;                   693         $time -= $minutes * 60;
694     }                                             694     }
695                                                   695 
696     if ($hours > 0) {                             696     if ($hours > 0) {
697         doprint "$hours hour";                    697         doprint "$hours hour";
698         doprint "s" if ($hours > 1);              698         doprint "s" if ($hours > 1);
699         doprint " ";                              699         doprint " ";
700     }                                             700     }
701                                                   701 
702     if ($minutes > 0) {                           702     if ($minutes > 0) {
703         doprint "$minutes minute";                703         doprint "$minutes minute";
704         doprint "s" if ($minutes > 1);            704         doprint "s" if ($minutes > 1);
705         doprint " ";                              705         doprint " ";
706     }                                             706     }
707                                                   707 
708     doprint "$time second";                       708     doprint "$time second";
709     doprint "s" if ($time != 1);                  709     doprint "s" if ($time != 1);
710 }                                                 710 }
711                                                   711 
712 sub print_times {                                 712 sub print_times {
713     doprint "\n";                                 713     doprint "\n";
714     if ($build_time) {                            714     if ($build_time) {
715         doprint "Build time:   ";                 715         doprint "Build time:   ";
716         show_time($build_time);                   716         show_time($build_time);
717         doprint "\n";                             717         doprint "\n";
718     }                                             718     }
719     if ($install_time) {                          719     if ($install_time) {
720         doprint "Install time: ";                 720         doprint "Install time: ";
721         show_time($install_time);                 721         show_time($install_time);
722         doprint "\n";                             722         doprint "\n";
723     }                                             723     }
724     if ($reboot_time) {                           724     if ($reboot_time) {
725         doprint "Reboot time:  ";                 725         doprint "Reboot time:  ";
726         show_time($reboot_time);                  726         show_time($reboot_time);
727         doprint "\n";                             727         doprint "\n";
728     }                                             728     }
729     if ($test_time) {                             729     if ($test_time) {
730         doprint "Test time:    ";                 730         doprint "Test time:    ";
731         show_time($test_time);                    731         show_time($test_time);
732         doprint "\n";                             732         doprint "\n";
733     }                                             733     }
734     if ($warning_found) {                         734     if ($warning_found) {
735         doprint "\n*** WARNING";                  735         doprint "\n*** WARNING";
736         doprint "S" if ($warning_found > 1);      736         doprint "S" if ($warning_found > 1);
737         doprint " found in build: $warning_fou    737         doprint " found in build: $warning_found ***\n\n";
738     }                                             738     }
739                                                   739 
740     # reset for iterations like bisect            740     # reset for iterations like bisect
741     $build_time = 0;                              741     $build_time = 0;
742     $install_time = 0;                            742     $install_time = 0;
743     $reboot_time = 0;                             743     $reboot_time = 0;
744     $test_time = 0;                               744     $test_time = 0;
745     $warning_found = 0;                           745     $warning_found = 0;
746 }                                                 746 }
747                                                   747 
748 sub get_mandatory_configs {                       748 sub get_mandatory_configs {
749     get_mandatory_config("MACHINE");              749     get_mandatory_config("MACHINE");
750     get_mandatory_config("BUILD_DIR");            750     get_mandatory_config("BUILD_DIR");
751     get_mandatory_config("OUTPUT_DIR");           751     get_mandatory_config("OUTPUT_DIR");
752                                                   752 
753     if ($newconfig) {                             753     if ($newconfig) {
754         get_mandatory_config("BUILD_OPTIONS");    754         get_mandatory_config("BUILD_OPTIONS");
755     }                                             755     }
756                                                   756 
757     # options required for other than just bui    757     # options required for other than just building a kernel
758     if (!$buildonly) {                            758     if (!$buildonly) {
759         get_mandatory_config("POWER_CYCLE");      759         get_mandatory_config("POWER_CYCLE");
760         get_mandatory_config("CONSOLE");          760         get_mandatory_config("CONSOLE");
761     }                                             761     }
762                                                   762 
763     # options required for install and more       763     # options required for install and more
764     if ($buildonly != 1) {                        764     if ($buildonly != 1) {
765         get_mandatory_config("SSH_USER");         765         get_mandatory_config("SSH_USER");
766         get_mandatory_config("BUILD_TARGET");     766         get_mandatory_config("BUILD_TARGET");
767         get_mandatory_config("TARGET_IMAGE");     767         get_mandatory_config("TARGET_IMAGE");
768     }                                             768     }
769                                                   769 
770     get_mandatory_config("LOCALVERSION");         770     get_mandatory_config("LOCALVERSION");
771                                                   771 
772     return if ($buildonly);                       772     return if ($buildonly);
773                                                   773 
774     my $rtype = $opt{"REBOOT_TYPE"};              774     my $rtype = $opt{"REBOOT_TYPE"};
775                                                   775 
776     if (!defined($rtype)) {                       776     if (!defined($rtype)) {
777         if (!defined($opt{"GRUB_MENU"})) {        777         if (!defined($opt{"GRUB_MENU"})) {
778             get_mandatory_config("REBOOT_TYPE"    778             get_mandatory_config("REBOOT_TYPE");
779             $rtype = $entered_configs{"REBOOT_    779             $rtype = $entered_configs{"REBOOT_TYPE"};
780         } else {                                  780         } else {
781             $rtype = "grub";                      781             $rtype = "grub";
782         }                                         782         }
783     }                                             783     }
784                                                   784 
785     if (($rtype eq "grub") or ($rtype eq "grub    785     if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
786         get_mandatory_config("GRUB_MENU");        786         get_mandatory_config("GRUB_MENU");
787     }                                             787     }
788                                                   788 
789     if ($rtype eq "grub2") {                      789     if ($rtype eq "grub2") {
790         get_mandatory_config("GRUB_MENU");        790         get_mandatory_config("GRUB_MENU");
791         get_mandatory_config("GRUB_FILE");        791         get_mandatory_config("GRUB_FILE");
792     }                                             792     }
793                                                   793 
794     if ($rtype eq "syslinux") {                   794     if ($rtype eq "syslinux") {
795         get_mandatory_config("SYSLINUX_LABEL")    795         get_mandatory_config("SYSLINUX_LABEL");
796     }                                             796     }
797 }                                                 797 }
798                                                   798 
799 sub process_variables {                           799 sub process_variables {
800     my ($value, $remove_undef) = @_;              800     my ($value, $remove_undef) = @_;
801     my $retval = "";                              801     my $retval = "";
802                                                   802 
803     # We want to check for '\', and it is just    803     # We want to check for '\', and it is just easier
804     # to check the previous character of '$' a    804     # to check the previous character of '$' and not need
805     # to worry if '$' is the first character.     805     # to worry if '$' is the first character. By adding
806     # a space to $value, we can just check [^\    806     # a space to $value, we can just check [^\\]\$ and
807     # it will still work.                         807     # it will still work.
808     $value = " $value";                           808     $value = " $value";
809                                                   809 
810     while ($value =~ /(.*?[^\\])\$\{([^\{]*?)\    810     while ($value =~ /(.*?[^\\])\$\{([^\{]*?)\}(.*)/) {
811         my $begin = $1;                           811         my $begin = $1;
812         my $var = $2;                             812         my $var = $2;
813         my $end = $3;                             813         my $end = $3;
814         # append beginning of value to retval     814         # append beginning of value to retval
815         $retval = "$retval$begin";                815         $retval = "$retval$begin";
816         if ($var =~ s/^shell\s+//) {              816         if ($var =~ s/^shell\s+//) {
817             $retval = `$var`;                     817             $retval = `$var`;
818             if ($?) {                             818             if ($?) {
819                 doprint "WARNING: $var returne    819                 doprint "WARNING: $var returned an error\n";
820             } else {                              820             } else {
821                 chomp $retval;                    821                 chomp $retval;
822             }                                     822             }
823         } elsif (defined($variable{$var})) {      823         } elsif (defined($variable{$var})) {
824             $retval = "$retval$variable{$var}"    824             $retval = "$retval$variable{$var}";
825         } elsif (defined($remove_undef) && $re    825         } elsif (defined($remove_undef) && $remove_undef) {
826             # for if statements, any variable     826             # for if statements, any variable that is not defined,
827             # we simple convert to 0              827             # we simple convert to 0
828             $retval = "${retval}0";               828             $retval = "${retval}0";
829         } else {                                  829         } else {
830             # put back the origin piece, but w    830             # put back the origin piece, but with $#### to not reprocess it
831             $retval = "$retval\$####\{$var\}";    831             $retval = "$retval\$####\{$var\}";
832             # This could be an option that is     832             # This could be an option that is used later, save
833             # it so we don't warn if this opti    833             # it so we don't warn if this option is not one of
834             # ktests options.                     834             # ktests options.
835             $used_options{$var} = 1;              835             $used_options{$var} = 1;
836         }                                         836         }
837         $value = "$retval$end";                   837         $value = "$retval$end";
838         $retval = "";                             838         $retval = "";
839     }                                             839     }
840     $retval = $value;                             840     $retval = $value;
841                                                   841 
842     # Convert the saved variables with $####{v    842     # Convert the saved variables with $####{var} back to ${var}
843     $retval =~ s/\$####/\$/g;                     843     $retval =~ s/\$####/\$/g;
844                                                   844 
845     # remove the space added in the beginning     845     # remove the space added in the beginning
846     $retval =~ s/ //;                             846     $retval =~ s/ //;
847                                                   847 
848     return "$retval";                             848     return "$retval";
849 }                                                 849 }
850                                                   850 
851 sub set_value {                                   851 sub set_value {
852     my ($lvalue, $rvalue, $override, $override    852     my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
853                                                   853 
854     my $prvalue = process_variables($rvalue);     854     my $prvalue = process_variables($rvalue);
855                                                   855 
856     if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISEC    856     if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
857         $prvalue !~ /^(config_|)bisect$/ &&       857         $prvalue !~ /^(config_|)bisect$/ &&
858         $prvalue !~ /^build$/ &&                  858         $prvalue !~ /^build$/ &&
859         $prvalue !~ /^make_warnings_file$/ &&     859         $prvalue !~ /^make_warnings_file$/ &&
860         $buildonly) {                             860         $buildonly) {
861                                                   861 
862         # Note if a test is something other th    862         # Note if a test is something other than build, then we
863         # will need other mandatory options.      863         # will need other mandatory options.
864         if ($prvalue ne "install") {              864         if ($prvalue ne "install") {
865             $buildonly = 0;                       865             $buildonly = 0;
866         } else {                                  866         } else {
867             # install still limits some mandat    867             # install still limits some mandatory options.
868             $buildonly = 2;                       868             $buildonly = 2;
869         }                                         869         }
870     }                                             870     }
871                                                   871 
872     if (defined($opt{$lvalue})) {                 872     if (defined($opt{$lvalue})) {
873         if (!$override || defined(${$overrides    873         if (!$override || defined(${$overrides}{$lvalue})) {
874             my $extra = "";                       874             my $extra = "";
875             if ($override) {                      875             if ($override) {
876                 $extra = "In the same override    876                 $extra = "In the same override section!\n";
877             }                                     877             }
878             die "$name: $.: Option $lvalue def    878             die "$name: $.: Option $lvalue defined more than once!\n$extra";
879         }                                         879         }
880         ${$overrides}{$lvalue} = $prvalue;        880         ${$overrides}{$lvalue} = $prvalue;
881     }                                             881     }
882                                                   882 
883     $opt{$lvalue} = $prvalue;                     883     $opt{$lvalue} = $prvalue;
884 }                                                 884 }
885                                                   885 
886 sub set_eval {                                    886 sub set_eval {
887     my ($lvalue, $rvalue, $name) = @_;            887     my ($lvalue, $rvalue, $name) = @_;
888                                                   888 
889     my $prvalue = process_variables($rvalue);     889     my $prvalue = process_variables($rvalue);
890     my $arr;                                      890     my $arr;
891                                                   891 
892     if (defined($evals{$lvalue})) {               892     if (defined($evals{$lvalue})) {
893         $arr = $evals{$lvalue};                   893         $arr = $evals{$lvalue};
894     } else {                                      894     } else {
895         $arr = [];                                895         $arr = [];
896         $evals{$lvalue} = $arr;                   896         $evals{$lvalue} = $arr;
897     }                                             897     }
898                                                   898 
899     push @{$arr}, $rvalue;                        899     push @{$arr}, $rvalue;
900 }                                                 900 }
901                                                   901 
902 sub set_variable {                                902 sub set_variable {
903     my ($lvalue, $rvalue) = @_;                   903     my ($lvalue, $rvalue) = @_;
904                                                   904 
905     if ($rvalue =~ /^\s*$/) {                     905     if ($rvalue =~ /^\s*$/) {
906         delete $variable{$lvalue};                906         delete $variable{$lvalue};
907     } else {                                      907     } else {
908         $rvalue = process_variables($rvalue);     908         $rvalue = process_variables($rvalue);
909         $variable{$lvalue} = $rvalue;             909         $variable{$lvalue} = $rvalue;
910     }                                             910     }
911 }                                                 911 }
912                                                   912 
913 sub process_compare {                             913 sub process_compare {
914     my ($lval, $cmp, $rval) = @_;                 914     my ($lval, $cmp, $rval) = @_;
915                                                   915 
916     # remove whitespace                           916     # remove whitespace
917                                                   917 
918     $lval =~ s/^\s*//;                            918     $lval =~ s/^\s*//;
919     $lval =~ s/\s*$//;                            919     $lval =~ s/\s*$//;
920                                                   920 
921     $rval =~ s/^\s*//;                            921     $rval =~ s/^\s*//;
922     $rval =~ s/\s*$//;                            922     $rval =~ s/\s*$//;
923                                                   923 
924     if ($cmp eq "==") {                           924     if ($cmp eq "==") {
925         return $lval eq $rval;                    925         return $lval eq $rval;
926     } elsif ($cmp eq "!=") {                      926     } elsif ($cmp eq "!=") {
927         return $lval ne $rval;                    927         return $lval ne $rval;
928     } elsif ($cmp eq "=~") {                      928     } elsif ($cmp eq "=~") {
929         return $lval =~ m/$rval/;                 929         return $lval =~ m/$rval/;
930     } elsif ($cmp eq "!~") {                      930     } elsif ($cmp eq "!~") {
931         return $lval !~ m/$rval/;                 931         return $lval !~ m/$rval/;
932     }                                             932     }
933                                                   933 
934     my $statement = "$lval $cmp $rval";           934     my $statement = "$lval $cmp $rval";
935     my $ret = eval $statement;                    935     my $ret = eval $statement;
936                                                   936 
937     # $@ stores error of eval                     937     # $@ stores error of eval
938     if ($@) {                                     938     if ($@) {
939         return -1;                                939         return -1;
940     }                                             940     }
941                                                   941 
942     return $ret;                                  942     return $ret;
943 }                                                 943 }
944                                                   944 
945 sub value_defined {                               945 sub value_defined {
946     my ($val) = @_;                               946     my ($val) = @_;
947                                                   947 
948     return defined($variable{$2}) ||              948     return defined($variable{$2}) ||
949         defined($opt{$2});                        949         defined($opt{$2});
950 }                                                 950 }
951                                                   951 
952 sub process_expression {                          952 sub process_expression {
953     my ($name, $val) = @_;                        953     my ($name, $val) = @_;
954                                                   954 
955     my $c = $d++;                                 955     my $c = $d++;
956                                                   956 
957     while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL    957     while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
958         my $express = $1;                         958         my $express = $1;
959                                                   959 
960         if (process_expression($name, $express    960         if (process_expression($name, $express)) {
961             $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /    961             $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
962         } else {                                  962         } else {
963             $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /    963             $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
964         }                                         964         }
965     }                                             965     }
966                                                   966 
967     $d--;                                         967     $d--;
968     my $OR = "\\|\\|";                            968     my $OR = "\\|\\|";
969     my $AND = "\\&\\&";                           969     my $AND = "\\&\\&";
970                                                   970 
971     while ($val =~ s/^(.*?)($OR|$AND)//) {        971     while ($val =~ s/^(.*?)($OR|$AND)//) {
972         my $express = $1;                         972         my $express = $1;
973         my $op = $2;                              973         my $op = $2;
974                                                   974 
975         if (process_expression($name, $express    975         if (process_expression($name, $express)) {
976             if ($op eq "||") {                    976             if ($op eq "||") {
977                 return 1;                         977                 return 1;
978             }                                     978             }
979         } else {                                  979         } else {
980             if ($op eq "&&") {                    980             if ($op eq "&&") {
981                 return 0;                         981                 return 0;
982             }                                     982             }
983         }                                         983         }
984     }                                             984     }
985                                                   985 
986     if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)    986     if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
987         my $ret = process_compare($1, $2, $3);    987         my $ret = process_compare($1, $2, $3);
988         if ($ret < 0) {                           988         if ($ret < 0) {
989             die "$name: $.: Unable to process     989             die "$name: $.: Unable to process comparison\n";
990         }                                         990         }
991         return $ret;                              991         return $ret;
992     }                                             992     }
993                                                   993 
994     if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\    994     if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
995         if (defined $1) {                         995         if (defined $1) {
996             return !value_defined($2);            996             return !value_defined($2);
997         } else {                                  997         } else {
998             return value_defined($2);             998             return value_defined($2);
999         }                                         999         }
1000     }                                            1000     }
1001                                                  1001 
1002     if ($val =~ s/^\s*NOT\s+(.*)//) {            1002     if ($val =~ s/^\s*NOT\s+(.*)//) {
1003         my $express = $1;                        1003         my $express = $1;
1004         my $ret = process_expression($name, $    1004         my $ret = process_expression($name, $express);
1005         return !$ret;                            1005         return !$ret;
1006     }                                            1006     }
1007                                                  1007 
1008     if ($val =~ /^\s*0\s*$/) {                   1008     if ($val =~ /^\s*0\s*$/) {
1009         return 0;                                1009         return 0;
1010     } elsif ($val =~ /^\s*\d+\s*$/) {            1010     } elsif ($val =~ /^\s*\d+\s*$/) {
1011         return 1;                                1011         return 1;
1012     }                                            1012     }
1013                                                  1013 
1014     die ("$name: $.: Undefined content $val i    1014     die ("$name: $.: Undefined content $val in if statement\n");
1015 }                                                1015 }
1016                                                  1016 
1017 sub process_if {                                 1017 sub process_if {
1018     my ($name, $value) = @_;                     1018     my ($name, $value) = @_;
1019                                                  1019 
1020     # Convert variables and replace undefined    1020     # Convert variables and replace undefined ones with 0
1021     my $val = process_variables($value, 1);      1021     my $val = process_variables($value, 1);
1022     my $ret = process_expression $name, $val;    1022     my $ret = process_expression $name, $val;
1023                                                  1023 
1024     return $ret;                                 1024     return $ret;
1025 }                                                1025 }
1026                                                  1026 
1027 sub __read_config {                              1027 sub __read_config {
1028     my ($config, $current_test_num) = @_;        1028     my ($config, $current_test_num) = @_;
1029                                                  1029 
1030     my $in;                                      1030     my $in;
1031     open($in, $config) || die "can't read fil    1031     open($in, $config) || die "can't read file $config";
1032                                                  1032 
1033     my $name = $config;                          1033     my $name = $config;
1034     $name =~ s,.*/(.*),$1,;                      1034     $name =~ s,.*/(.*),$1,;
1035                                                  1035 
1036     my $test_num = $$current_test_num;           1036     my $test_num = $$current_test_num;
1037     my $default = 1;                             1037     my $default = 1;
1038     my $repeat = 1;                              1038     my $repeat = 1;
1039     my $num_tests_set = 0;                       1039     my $num_tests_set = 0;
1040     my $skip = 0;                                1040     my $skip = 0;
1041     my $rest;                                    1041     my $rest;
1042     my $line;                                    1042     my $line;
1043     my $test_case = 0;                           1043     my $test_case = 0;
1044     my $if = 0;                                  1044     my $if = 0;
1045     my $if_set = 0;                              1045     my $if_set = 0;
1046     my $override = 0;                            1046     my $override = 0;
1047                                                  1047 
1048     my %overrides;                               1048     my %overrides;
1049                                                  1049 
1050     while (<$in>) {                              1050     while (<$in>) {
1051                                                  1051 
1052         # ignore blank lines and comments        1052         # ignore blank lines and comments
1053         next if (/^\s*$/ || /\s*\#/);            1053         next if (/^\s*$/ || /\s*\#/);
1054                                                  1054 
1055         if (/^\s*(TEST_START|DEFAULTS)\b(.*)/    1055         if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1056                                                  1056 
1057             my $type = $1;                       1057             my $type = $1;
1058             $rest = $2;                          1058             $rest = $2;
1059             $line = $2;                          1059             $line = $2;
1060                                                  1060 
1061             my $old_test_num;                    1061             my $old_test_num;
1062             my $old_repeat;                      1062             my $old_repeat;
1063             $override = 0;                       1063             $override = 0;
1064                                                  1064 
1065             if ($type eq "TEST_START") {         1065             if ($type eq "TEST_START") {
1066                 if ($num_tests_set) {            1066                 if ($num_tests_set) {
1067                     die "$name: $.: Can not s    1067                     die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1068                 }                                1068                 }
1069                                                  1069 
1070                 $old_test_num = $test_num;       1070                 $old_test_num = $test_num;
1071                 $old_repeat = $repeat;           1071                 $old_repeat = $repeat;
1072                                                  1072 
1073                 $test_num += $repeat;            1073                 $test_num += $repeat;
1074                 $default = 0;                    1074                 $default = 0;
1075                 $repeat = 1;                     1075                 $repeat = 1;
1076             } else {                             1076             } else {
1077                 $default = 1;                    1077                 $default = 1;
1078             }                                    1078             }
1079                                                  1079 
1080             # If SKIP is anywhere in the line    1080             # If SKIP is anywhere in the line, the command will be skipped
1081             if ($rest =~ s/\s+SKIP\b//) {        1081             if ($rest =~ s/\s+SKIP\b//) {
1082                 $skip = 1;                       1082                 $skip = 1;
1083             } else {                             1083             } else {
1084                 $test_case = 1;                  1084                 $test_case = 1;
1085                 $skip = 0;                       1085                 $skip = 0;
1086             }                                    1086             }
1087                                                  1087 
1088             if ($rest =~ s/\sELSE\b//) {         1088             if ($rest =~ s/\sELSE\b//) {
1089                 if (!$if) {                      1089                 if (!$if) {
1090                     die "$name: $.: ELSE foun    1090                     die "$name: $.: ELSE found with out matching IF section\n$_";
1091                 }                                1091                 }
1092                 $if = 0;                         1092                 $if = 0;
1093                                                  1093 
1094                 if ($if_set) {                   1094                 if ($if_set) {
1095                     $skip = 1;                   1095                     $skip = 1;
1096                 } else {                         1096                 } else {
1097                     $skip = 0;                   1097                     $skip = 0;
1098                 }                                1098                 }
1099             }                                    1099             }
1100                                                  1100 
1101             if ($rest =~ s/\sIF\s+(.*)//) {      1101             if ($rest =~ s/\sIF\s+(.*)//) {
1102                 if (process_if($name, $1)) {     1102                 if (process_if($name, $1)) {
1103                     $if_set = 1;                 1103                     $if_set = 1;
1104                 } else {                         1104                 } else {
1105                     $skip = 1;                   1105                     $skip = 1;
1106                 }                                1106                 }
1107                 $if = 1;                         1107                 $if = 1;
1108             } else {                             1108             } else {
1109                 $if = 0;                         1109                 $if = 0;
1110                 $if_set = 0;                     1110                 $if_set = 0;
1111             }                                    1111             }
1112                                                  1112 
1113             if (!$skip) {                        1113             if (!$skip) {
1114                 if ($type eq "TEST_START") {     1114                 if ($type eq "TEST_START") {
1115                     if ($rest =~ s/\s+ITERATE    1115                     if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1116                         $repeat = $1;            1116                         $repeat = $1;
1117                         $repeat_tests{"$test_    1117                         $repeat_tests{"$test_num"} = $repeat;
1118                     }                            1118                     }
1119                 } elsif ($rest =~ s/\sOVERRID    1119                 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1120                     # DEFAULT only               1120                     # DEFAULT only
1121                     $override = 1;               1121                     $override = 1;
1122                     # Clear previous override    1122                     # Clear previous overrides
1123                     %overrides = ();             1123                     %overrides = ();
1124                 }                                1124                 }
1125             }                                    1125             }
1126                                                  1126 
1127             if (!$skip && $rest !~ /^\s*$/) {    1127             if (!$skip && $rest !~ /^\s*$/) {
1128                 die "$name: $.: Garbage found    1128                 die "$name: $.: Garbage found after $type\n$_";
1129             }                                    1129             }
1130                                                  1130 
1131             if ($skip && $type eq "TEST_START    1131             if ($skip && $type eq "TEST_START") {
1132                 $test_num = $old_test_num;       1132                 $test_num = $old_test_num;
1133                 $repeat = $old_repeat;           1133                 $repeat = $old_repeat;
1134             }                                    1134             }
1135         } elsif (/^\s*ELSE\b(.*)$/) {            1135         } elsif (/^\s*ELSE\b(.*)$/) {
1136             if (!$if) {                          1136             if (!$if) {
1137                 die "$name: $.: ELSE found wi    1137                 die "$name: $.: ELSE found with out matching IF section\n$_";
1138             }                                    1138             }
1139             $rest = $1;                          1139             $rest = $1;
1140             if ($if_set) {                       1140             if ($if_set) {
1141                 $skip = 1;                       1141                 $skip = 1;
1142                 $rest = "";                      1142                 $rest = "";
1143             } else {                             1143             } else {
1144                 $skip = 0;                       1144                 $skip = 0;
1145                                                  1145 
1146                 if ($rest =~ /\sIF\s+(.*)/) {    1146                 if ($rest =~ /\sIF\s+(.*)/) {
1147                     # May be a ELSE IF sectio    1147                     # May be a ELSE IF section.
1148                     if (process_if($name, $1)    1148                     if (process_if($name, $1)) {
1149                         $if_set = 1;             1149                         $if_set = 1;
1150                     } else {                     1150                     } else {
1151                         $skip = 1;               1151                         $skip = 1;
1152                     }                            1152                     }
1153                     $rest = "";                  1153                     $rest = "";
1154                 } else {                         1154                 } else {
1155                     $if = 0;                     1155                     $if = 0;
1156                 }                                1156                 }
1157             }                                    1157             }
1158                                                  1158 
1159             if ($rest !~ /^\s*$/) {              1159             if ($rest !~ /^\s*$/) {
1160                 die "$name: $.: Garbage found    1160                 die "$name: $.: Garbage found after DEFAULTS\n$_";
1161             }                                    1161             }
1162                                                  1162 
1163         } elsif (/^\s*INCLUDE\s+(\S+)/) {        1163         } elsif (/^\s*INCLUDE\s+(\S+)/) {
1164                                                  1164 
1165             next if ($skip);                     1165             next if ($skip);
1166                                                  1166 
1167             if (!$default) {                     1167             if (!$default) {
1168                 die "$name: $.: INCLUDE can o    1168                 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1169             }                                    1169             }
1170                                                  1170 
1171             my $file = process_variables($1);    1171             my $file = process_variables($1);
1172                                                  1172 
1173             if ($file !~ m,^/,) {                1173             if ($file !~ m,^/,) {
1174                 # check the path of the confi    1174                 # check the path of the config file first
1175                 if ($config =~ m,(.*)/,) {       1175                 if ($config =~ m,(.*)/,) {
1176                     if (-f "$1/$file") {         1176                     if (-f "$1/$file") {
1177                         $file = "$1/$file";      1177                         $file = "$1/$file";
1178                     }                            1178                     }
1179                 }                                1179                 }
1180             }                                    1180             }
1181                                                  1181 
1182             if ( ! -r $file ) {                  1182             if ( ! -r $file ) {
1183                 die "$name: $.: Can't read fi    1183                 die "$name: $.: Can't read file $file\n$_";
1184             }                                    1184             }
1185                                                  1185 
1186             if (__read_config($file, \$test_n    1186             if (__read_config($file, \$test_num)) {
1187                 $test_case = 1;                  1187                 $test_case = 1;
1188             }                                    1188             }
1189                                                  1189 
1190         } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*    1190         } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1191                                                  1191 
1192             next if ($skip);                     1192             next if ($skip);
1193                                                  1193 
1194             my $lvalue = $1;                     1194             my $lvalue = $1;
1195             my $rvalue = $2;                     1195             my $rvalue = $2;
1196                                                  1196 
1197             if ($default || $lvalue =~ /\[\d+    1197             if ($default || $lvalue =~ /\[\d+\]$/) {
1198                 set_eval($lvalue, $rvalue, $n    1198                 set_eval($lvalue, $rvalue, $name);
1199             } else {                             1199             } else {
1200                 my $val = "$lvalue\[$test_num    1200                 my $val = "$lvalue\[$test_num\]";
1201                 set_eval($val, $rvalue, $name    1201                 set_eval($val, $rvalue, $name);
1202             }                                    1202             }
1203                                                  1203 
1204         } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(    1204         } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1205                                                  1205 
1206             next if ($skip);                     1206             next if ($skip);
1207                                                  1207 
1208             my $lvalue = $1;                     1208             my $lvalue = $1;
1209             my $rvalue = $2;                     1209             my $rvalue = $2;
1210                                                  1210 
1211             if (!$default &&                     1211             if (!$default &&
1212                 ($lvalue eq "NUM_TESTS" ||       1212                 ($lvalue eq "NUM_TESTS" ||
1213                  $lvalue eq "LOG_FILE" ||        1213                  $lvalue eq "LOG_FILE" ||
1214                  $lvalue eq "CLEAR_LOG")) {      1214                  $lvalue eq "CLEAR_LOG")) {
1215                 die "$name: $.: $lvalue must     1215                 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1216             }                                    1216             }
1217                                                  1217 
1218             if ($lvalue eq "NUM_TESTS") {        1218             if ($lvalue eq "NUM_TESTS") {
1219                 if ($test_num) {                 1219                 if ($test_num) {
1220                     die "$name: $.: Can not s    1220                     die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1221                 }                                1221                 }
1222                 if (!$default) {                 1222                 if (!$default) {
1223                     die "$name: $.: NUM_TESTS    1223                     die "$name: $.: NUM_TESTS must be set in default section\n";
1224                 }                                1224                 }
1225                 $num_tests_set = 1;              1225                 $num_tests_set = 1;
1226             }                                    1226             }
1227                                                  1227 
1228             if ($default || $lvalue =~ /\[\d+    1228             if ($default || $lvalue =~ /\[\d+\]$/) {
1229                 set_value($lvalue, $rvalue, $    1229                 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1230             } else {                             1230             } else {
1231                 my $val = "$lvalue\[$test_num    1231                 my $val = "$lvalue\[$test_num\]";
1232                 set_value($val, $rvalue, $ove    1232                 set_value($val, $rvalue, $override, \%overrides, $name);
1233                                                  1233 
1234                 if ($repeat > 1) {               1234                 if ($repeat > 1) {
1235                     $repeats{$val} = $repeat;    1235                     $repeats{$val} = $repeat;
1236                 }                                1236                 }
1237             }                                    1237             }
1238         } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*    1238         } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1239             next if ($skip);                     1239             next if ($skip);
1240                                                  1240 
1241             my $lvalue = $1;                     1241             my $lvalue = $1;
1242             my $rvalue = $2;                     1242             my $rvalue = $2;
1243                                                  1243 
1244             # process config variables.          1244             # process config variables.
1245             # Config variables are only activ    1245             # Config variables are only active while reading the
1246             # config and can be defined anywh    1246             # config and can be defined anywhere. They also ignore
1247             # TEST_START and DEFAULTS, but ar    1247             # TEST_START and DEFAULTS, but are skipped if they are in
1248             # on of these sections that have     1248             # on of these sections that have SKIP defined.
1249             # The save variable can be           1249             # The save variable can be
1250             # defined multiple times and the     1250             # defined multiple times and the new one simply overrides
1251             # the previous one.                  1251             # the previous one.
1252             set_variable($lvalue, $rvalue);      1252             set_variable($lvalue, $rvalue);
1253                                                  1253 
1254         } else {                                 1254         } else {
1255             die "$name: $.: Garbage found in     1255             die "$name: $.: Garbage found in config\n$_";
1256         }                                        1256         }
1257     }                                            1257     }
1258                                                  1258 
1259     if ($test_num) {                             1259     if ($test_num) {
1260         $test_num += $repeat - 1;                1260         $test_num += $repeat - 1;
1261         $opt{"NUM_TESTS"} = $test_num;           1261         $opt{"NUM_TESTS"} = $test_num;
1262     }                                            1262     }
1263                                                  1263 
1264     close($in);                                  1264     close($in);
1265                                                  1265 
1266     $$current_test_num = $test_num;              1266     $$current_test_num = $test_num;
1267                                                  1267 
1268     return $test_case;                           1268     return $test_case;
1269 }                                                1269 }
1270                                                  1270 
1271 sub get_test_case {                              1271 sub get_test_case {
1272     print "What test case would you like to r    1272     print "What test case would you like to run?\n";
1273     print " (build, install or boot)\n";         1273     print " (build, install or boot)\n";
1274     print " Other tests are available but req    1274     print " Other tests are available but require editing ktest.conf\n";
1275     print " (see tools/testing/ktest/sample.c    1275     print " (see tools/testing/ktest/sample.conf)\n";
1276     my $ans = <STDIN>;                           1276     my $ans = <STDIN>;
1277     chomp $ans;                                  1277     chomp $ans;
1278     $default{"TEST_TYPE"} = $ans;                1278     $default{"TEST_TYPE"} = $ans;
1279 }                                                1279 }
1280                                                  1280 
1281 sub read_config {                                1281 sub read_config {
1282     my ($config) = @_;                           1282     my ($config) = @_;
1283                                                  1283 
1284     my $test_case;                               1284     my $test_case;
1285     my $test_num = 0;                            1285     my $test_num = 0;
1286                                                  1286 
1287     $test_case = __read_config $config, \$tes    1287     $test_case = __read_config $config, \$test_num;
1288                                                  1288 
1289     # make sure we have all mandatory configs    1289     # make sure we have all mandatory configs
1290     get_mandatory_configs;                       1290     get_mandatory_configs;
1291                                                  1291 
1292     # was a test specified?                      1292     # was a test specified?
1293     if (!$test_case) {                           1293     if (!$test_case) {
1294         print "No test case specified.\n";       1294         print "No test case specified.\n";
1295         get_test_case;                           1295         get_test_case;
1296     }                                            1296     }
1297                                                  1297 
1298     # set any defaults                           1298     # set any defaults
1299                                                  1299 
1300     foreach my $default (keys %default) {        1300     foreach my $default (keys %default) {
1301         if (!defined($opt{$default})) {          1301         if (!defined($opt{$default})) {
1302             $opt{$default} = $default{$defaul    1302             $opt{$default} = $default{$default};
1303         }                                        1303         }
1304     }                                            1304     }
1305                                                  1305 
1306     if ($opt{"IGNORE_UNUSED"} == 1) {            1306     if ($opt{"IGNORE_UNUSED"} == 1) {
1307         return;                                  1307         return;
1308     }                                            1308     }
1309                                                  1309 
1310     my %not_used;                                1310     my %not_used;
1311                                                  1311 
1312     # check if there are any stragglers (typo    1312     # check if there are any stragglers (typos?)
1313     foreach my $option (keys %opt) {             1313     foreach my $option (keys %opt) {
1314         my $op = $option;                        1314         my $op = $option;
1315         # remove per test labels.                1315         # remove per test labels.
1316         $op =~ s/\[.*\]//;                       1316         $op =~ s/\[.*\]//;
1317         if (!exists($option_map{$op}) &&         1317         if (!exists($option_map{$op}) &&
1318             !exists($default{$op}) &&            1318             !exists($default{$op}) &&
1319             !exists($used_options{$op})) {       1319             !exists($used_options{$op})) {
1320             $not_used{$op} = 1;                  1320             $not_used{$op} = 1;
1321         }                                        1321         }
1322     }                                            1322     }
1323                                                  1323 
1324     if (%not_used) {                             1324     if (%not_used) {
1325         my $s = "s are";                         1325         my $s = "s are";
1326         $s = " is" if (keys %not_used == 1);     1326         $s = " is" if (keys %not_used == 1);
1327         print "The following option$s not use    1327         print "The following option$s not used; could be a typo:\n";
1328         foreach my $option (keys %not_used) {    1328         foreach my $option (keys %not_used) {
1329             print "$option\n";                   1329             print "$option\n";
1330         }                                        1330         }
1331         print "Set IGNORE_UNUSED = 1 to have     1331         print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1332         if (!read_yn "Do you want to continue    1332         if (!read_yn "Do you want to continue?") {
1333             exit -1;                             1333             exit -1;
1334         }                                        1334         }
1335     }                                            1335     }
1336 }                                                1336 }
1337                                                  1337 
1338 sub __eval_option {                              1338 sub __eval_option {
1339     my ($name, $option, $i) = @_;                1339     my ($name, $option, $i) = @_;
1340                                                  1340 
1341     # Add space to evaluate the character bef    1341     # Add space to evaluate the character before $
1342     $option = " $option";                        1342     $option = " $option";
1343     my $retval = "";                             1343     my $retval = "";
1344     my $repeated = 0;                            1344     my $repeated = 0;
1345     my $parent = 0;                              1345     my $parent = 0;
1346                                                  1346 
1347     foreach my $test (keys %repeat_tests) {      1347     foreach my $test (keys %repeat_tests) {
1348         if ($i >= $test &&                       1348         if ($i >= $test &&
1349             $i < $test + $repeat_tests{$test}    1349             $i < $test + $repeat_tests{$test}) {
1350                                                  1350 
1351             $repeated = 1;                       1351             $repeated = 1;
1352             $parent = $test;                     1352             $parent = $test;
1353             last;                                1353             last;
1354         }                                        1354         }
1355     }                                            1355     }
1356                                                  1356 
1357     while ($option =~ /(.*?[^\\])\$\{(.*?)\}(    1357     while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1358         my $start = $1;                          1358         my $start = $1;
1359         my $var = $2;                            1359         my $var = $2;
1360         my $end = $3;                            1360         my $end = $3;
1361                                                  1361 
1362         # Append beginning of line               1362         # Append beginning of line
1363         $retval = "$retval$start";               1363         $retval = "$retval$start";
1364                                                  1364 
1365         # If the iteration option OPT[$i] exi    1365         # If the iteration option OPT[$i] exists, then use that.
1366         # otherwise see if the default OPT (w    1366         # otherwise see if the default OPT (without [$i]) exists.
1367                                                  1367 
1368         my $o = "$var\[$i\]";                    1368         my $o = "$var\[$i\]";
1369         my $parento = "$var\[$parent\]";         1369         my $parento = "$var\[$parent\]";
1370                                                  1370 
1371         # If a variable contains itself, use     1371         # If a variable contains itself, use the default var
1372         if (($var eq $name) && defined($opt{$    1372         if (($var eq $name) && defined($opt{$var})) {
1373             $o = $opt{$var};                     1373             $o = $opt{$var};
1374             $retval = "$retval$o";               1374             $retval = "$retval$o";
1375         } elsif (defined($opt{$o})) {            1375         } elsif (defined($opt{$o})) {
1376             $o = $opt{$o};                       1376             $o = $opt{$o};
1377             $retval = "$retval$o";               1377             $retval = "$retval$o";
1378         } elsif ($repeated && defined($opt{$p    1378         } elsif ($repeated && defined($opt{$parento})) {
1379             $o = $opt{$parento};                 1379             $o = $opt{$parento};
1380             $retval = "$retval$o";               1380             $retval = "$retval$o";
1381         } elsif (defined($opt{$var})) {          1381         } elsif (defined($opt{$var})) {
1382             $o = $opt{$var};                     1382             $o = $opt{$var};
1383             $retval = "$retval$o";               1383             $retval = "$retval$o";
1384         } elsif ($var eq "KERNEL_VERSION" &&     1384         } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1385             # special option KERNEL_VERSION u    1385             # special option KERNEL_VERSION uses kernel version
1386             get_version();                       1386             get_version();
1387             $retval = "$retval$version";         1387             $retval = "$retval$version";
1388         } else {                                 1388         } else {
1389             $retval = "$retval\$\{$var\}";       1389             $retval = "$retval\$\{$var\}";
1390         }                                        1390         }
1391                                                  1391 
1392         $option = $end;                          1392         $option = $end;
1393     }                                            1393     }
1394                                                  1394 
1395     $retval = "$retval$option";                  1395     $retval = "$retval$option";
1396                                                  1396 
1397     $retval =~ s/^ //;                           1397     $retval =~ s/^ //;
1398                                                  1398 
1399     return $retval;                              1399     return $retval;
1400 }                                                1400 }
1401                                                  1401 
1402 sub process_evals {                              1402 sub process_evals {
1403     my ($name, $option, $i) = @_;                1403     my ($name, $option, $i) = @_;
1404                                                  1404 
1405     my $option_name = "$name\[$i\]";             1405     my $option_name = "$name\[$i\]";
1406     my $ev;                                      1406     my $ev;
1407                                                  1407 
1408     my $old_option = $option;                    1408     my $old_option = $option;
1409                                                  1409 
1410     if (defined($evals{$option_name})) {         1410     if (defined($evals{$option_name})) {
1411         $ev = $evals{$option_name};              1411         $ev = $evals{$option_name};
1412     } elsif (defined($evals{$name})) {           1412     } elsif (defined($evals{$name})) {
1413         $ev = $evals{$name};                     1413         $ev = $evals{$name};
1414     } else {                                     1414     } else {
1415         return $option;                          1415         return $option;
1416     }                                            1416     }
1417                                                  1417 
1418     for my $e (@{$ev}) {                         1418     for my $e (@{$ev}) {
1419         eval "\$option =~ $e";                   1419         eval "\$option =~ $e";
1420     }                                            1420     }
1421                                                  1421 
1422     if ($option ne $old_option) {                1422     if ($option ne $old_option) {
1423         doprint("$name changed from '$old_opt    1423         doprint("$name changed from '$old_option' to '$option'\n");
1424     }                                            1424     }
1425                                                  1425 
1426     return $option;                              1426     return $option;
1427 }                                                1427 }
1428                                                  1428 
1429 sub eval_option {                                1429 sub eval_option {
1430     my ($name, $option, $i) = @_;                1430     my ($name, $option, $i) = @_;
1431                                                  1431 
1432     my $prev = "";                               1432     my $prev = "";
1433                                                  1433 
1434     # Since an option can evaluate to another    1434     # Since an option can evaluate to another option,
1435     # keep iterating until we do not evaluate    1435     # keep iterating until we do not evaluate any more
1436     # options.                                   1436     # options.
1437     my $r = 0;                                   1437     my $r = 0;
1438     while ($prev ne $option) {                   1438     while ($prev ne $option) {
1439         # Check for recursive evaluations.       1439         # Check for recursive evaluations.
1440         # 100 deep should be more than enough    1440         # 100 deep should be more than enough.
1441         if ($r++ > 100) {                        1441         if ($r++ > 100) {
1442             die "Over 100 evaluations occurre    1442             die "Over 100 evaluations occurred with $option\n" .
1443                 "Check for recursive variable    1443                 "Check for recursive variables\n";
1444         }                                        1444         }
1445         $prev = $option;                         1445         $prev = $option;
1446         $option = __eval_option($name, $optio    1446         $option = __eval_option($name, $option, $i);
1447     }                                            1447     }
1448                                                  1448 
1449     $option = process_evals($name, $option, $    1449     $option = process_evals($name, $option, $i);
1450                                                  1450 
1451     return $option;                              1451     return $option;
1452 }                                                1452 }
1453                                                  1453 
1454 sub reboot {                                     1454 sub reboot {
1455     my ($time) = @_;                             1455     my ($time) = @_;
1456     my $powercycle = 0;                          1456     my $powercycle = 0;
1457                                                  1457 
1458     # test if the machine can be connected to    1458     # test if the machine can be connected to within a few seconds
1459     my $stat = run_ssh("echo check machine st    1459     my $stat = run_ssh("echo check machine status", $connect_timeout);
1460     if (!$stat) {                                1460     if (!$stat) {
1461         doprint("power cycle\n");                1461         doprint("power cycle\n");
1462         $powercycle = 1;                         1462         $powercycle = 1;
1463     }                                            1463     }
1464                                                  1464 
1465     if ($powercycle) {                           1465     if ($powercycle) {
1466         run_command "$power_cycle";              1466         run_command "$power_cycle";
1467                                                  1467 
1468         start_monitor;                           1468         start_monitor;
1469         # flush out current monitor              1469         # flush out current monitor
1470         # May contain the reboot success line    1470         # May contain the reboot success line
1471         wait_for_monitor 1;                      1471         wait_for_monitor 1;
1472                                                  1472 
1473     } else {                                     1473     } else {
1474         # Make sure everything has been writt    1474         # Make sure everything has been written to disk
1475         run_ssh("sync", 10);                     1475         run_ssh("sync", 10);
1476                                                  1476 
1477         if (defined($time)) {                    1477         if (defined($time)) {
1478             start_monitor;                       1478             start_monitor;
1479             # flush out current monitor          1479             # flush out current monitor
1480             # May contain the reboot success     1480             # May contain the reboot success line
1481             wait_for_monitor 1;                  1481             wait_for_monitor 1;
1482         }                                        1482         }
1483                                                  1483 
1484         # try to reboot normally                 1484         # try to reboot normally
1485         if (run_command $reboot) {               1485         if (run_command $reboot) {
1486             if (defined($powercycle_after_reb    1486             if (defined($powercycle_after_reboot)) {
1487                 sleep $powercycle_after_reboo    1487                 sleep $powercycle_after_reboot;
1488                 run_command "$power_cycle";      1488                 run_command "$power_cycle";
1489             }                                    1489             }
1490         } else {                                 1490         } else {
1491             # nope? power cycle it.              1491             # nope? power cycle it.
1492             run_command "$power_cycle";          1492             run_command "$power_cycle";
1493         }                                        1493         }
1494     }                                            1494     }
1495                                                  1495 
1496     if (defined($time)) {                        1496     if (defined($time)) {
1497                                                  1497 
1498         # We only want to get to the new kern    1498         # We only want to get to the new kernel, don't fail
1499         # if we stumble over a call trace.       1499         # if we stumble over a call trace.
1500         my $save_ignore_errors = $ignore_erro    1500         my $save_ignore_errors = $ignore_errors;
1501         $ignore_errors = 1;                      1501         $ignore_errors = 1;
1502                                                  1502 
1503         # Look for the good kernel to boot       1503         # Look for the good kernel to boot
1504         if (wait_for_monitor($time, "Linux ve    1504         if (wait_for_monitor($time, "Linux version")) {
1505             # reboot got stuck?                  1505             # reboot got stuck?
1506             doprint "Reboot did not finish. F    1506             doprint "Reboot did not finish. Forcing power cycle\n";
1507             run_command "$power_cycle";          1507             run_command "$power_cycle";
1508         }                                        1508         }
1509                                                  1509 
1510         $ignore_errors = $save_ignore_errors;    1510         $ignore_errors = $save_ignore_errors;
1511                                                  1511 
1512         # Still need to wait for the reboot t    1512         # Still need to wait for the reboot to finish
1513         wait_for_monitor($time, $reboot_succe    1513         wait_for_monitor($time, $reboot_success_line);
1514     }                                            1514     }
1515     if ($powercycle || $time) {                  1515     if ($powercycle || $time) {
1516         end_monitor;                             1516         end_monitor;
1517     }                                            1517     }
1518 }                                                1518 }
1519                                                  1519 
1520 sub reboot_to_good {                             1520 sub reboot_to_good {
1521     my ($time) = @_;                             1521     my ($time) = @_;
1522                                                  1522 
1523     if (defined($switch_to_good)) {              1523     if (defined($switch_to_good)) {
1524         run_command $switch_to_good;             1524         run_command $switch_to_good;
1525     }                                            1525     }
1526                                                  1526 
1527     reboot $time;                                1527     reboot $time;
1528 }                                                1528 }
1529                                                  1529 
1530 sub do_not_reboot {                              1530 sub do_not_reboot {
1531     my $i = $iteration;                          1531     my $i = $iteration;
1532                                                  1532 
1533     return $test_type eq "build" || $no_reboo    1533     return $test_type eq "build" || $no_reboot ||
1534         ($test_type eq "patchcheck" && $opt{"    1534         ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1535         ($test_type eq "bisect" && $opt{"BISE    1535         ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1536         ($test_type eq "config_bisect" && $op    1536         ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1537 }                                                1537 }
1538                                                  1538 
1539 sub get_test_name() {                            1539 sub get_test_name() {
1540     my $name;                                    1540     my $name;
1541                                                  1541 
1542     if (defined($test_name)) {                   1542     if (defined($test_name)) {
1543         $name = "$test_name:$test_type";         1543         $name = "$test_name:$test_type";
1544     } else {                                     1544     } else {
1545         $name = $test_type;                      1545         $name = $test_type;
1546     }                                            1546     }
1547     return $name;                                1547     return $name;
1548 }                                                1548 }
1549                                                  1549 
1550 sub dodie {                                      1550 sub dodie {
1551     # avoid recursion                            1551     # avoid recursion
1552     return if ($in_die);                         1552     return if ($in_die);
1553     $in_die = 1;                                 1553     $in_die = 1;
1554                                                  1554 
1555     if ($monitor_cnt) {                          1555     if ($monitor_cnt) {
1556         # restore terminal settings              1556         # restore terminal settings
1557         system("stty $stty_orig");               1557         system("stty $stty_orig");
1558     }                                            1558     }
1559                                                  1559 
1560     my $i = $iteration;                          1560     my $i = $iteration;
1561                                                  1561 
1562     doprint "CRITICAL FAILURE... [TEST $i] ",    1562     doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1563                                                  1563 
1564     if ($reboot_on_error && !do_not_reboot) {    1564     if ($reboot_on_error && !do_not_reboot) {
1565         doprint "REBOOTING\n";                   1565         doprint "REBOOTING\n";
1566         reboot_to_good;                          1566         reboot_to_good;
1567     } elsif ($poweroff_on_error && defined($p    1567     } elsif ($poweroff_on_error && defined($power_off)) {
1568         doprint "POWERING OFF\n";                1568         doprint "POWERING OFF\n";
1569         `$power_off`;                            1569         `$power_off`;
1570     }                                            1570     }
1571                                                  1571 
1572     if (defined($opt{"LOG_FILE"})) {             1572     if (defined($opt{"LOG_FILE"})) {
1573         print " See $opt{LOG_FILE} for more i    1573         print " See $opt{LOG_FILE} for more info.\n";
1574     }                                            1574     }
1575                                                  1575 
1576     if ($email_on_error) {                       1576     if ($email_on_error) {
1577         my $name = get_test_name;                1577         my $name = get_test_name;
1578         my $log_file;                            1578         my $log_file;
1579                                                  1579 
1580         if (defined($opt{"LOG_FILE"})) {         1580         if (defined($opt{"LOG_FILE"})) {
1581             my $whence = 2; # End of file        1581             my $whence = 2; # End of file
1582             my $log_size = tell LOG;             1582             my $log_size = tell LOG;
1583             my $size = $log_size - $test_log_    1583             my $size = $log_size - $test_log_start;
1584                                                  1584 
1585             if (defined($mail_max_size)) {       1585             if (defined($mail_max_size)) {
1586                 if ($size > $mail_max_size) {    1586                 if ($size > $mail_max_size) {
1587                     $size = $mail_max_size;      1587                     $size = $mail_max_size;
1588                 }                                1588                 }
1589             }                                    1589             }
1590             my $pos = - $size;                   1590             my $pos = - $size;
1591             $log_file = "$tmpdir/log";           1591             $log_file = "$tmpdir/log";
1592             open (L, "$opt{LOG_FILE}") or die    1592             open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1593             open (O, "> $tmpdir/log") or die     1593             open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1594             seek(L, $pos, $whence);              1594             seek(L, $pos, $whence);
1595             while (<L>) {                        1595             while (<L>) {
1596                 print O;                         1596                 print O;
1597             }                                    1597             }
1598             close O;                             1598             close O;
1599             close L;                             1599             close L;
1600         }                                        1600         }
1601                                                  1601 
1602         send_email("KTEST: critical failure f    1602         send_email("KTEST: critical failure for test $i [$name]",
1603                 "Your test started at $script    1603                 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1604     }                                            1604     }
1605                                                  1605 
1606     if (defined($post_test)) {                   1606     if (defined($post_test)) {
1607         run_command $post_test;                  1607         run_command $post_test;
1608     }                                            1608     }
1609                                                  1609 
1610     die @_, "\n";                                1610     die @_, "\n";
1611 }                                                1611 }
1612                                                  1612 
1613 sub create_pty {                                 1613 sub create_pty {
1614     my ($ptm, $pts) = @_;                        1614     my ($ptm, $pts) = @_;
1615     my $tmp;                                     1615     my $tmp;
1616     my $TIOCSPTLCK = 0x40045431;                 1616     my $TIOCSPTLCK = 0x40045431;
1617     my $TIOCGPTN = 0x80045430;                   1617     my $TIOCGPTN = 0x80045430;
1618                                                  1618 
1619     sysopen($ptm, "/dev/ptmx", O_RDWR | O_NON    1619     sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1620         dodie "Can't open /dev/ptmx";            1620         dodie "Can't open /dev/ptmx";
1621                                                  1621 
1622     # unlockpt()                                 1622     # unlockpt()
1623     $tmp = pack("i", 0);                         1623     $tmp = pack("i", 0);
1624     ioctl($ptm, $TIOCSPTLCK, $tmp) or            1624     ioctl($ptm, $TIOCSPTLCK, $tmp) or
1625         dodie "ioctl TIOCSPTLCK for /dev/ptmx    1625         dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1626                                                  1626 
1627     # ptsname()                                  1627     # ptsname()
1628     ioctl($ptm, $TIOCGPTN, $tmp) or              1628     ioctl($ptm, $TIOCGPTN, $tmp) or
1629         dodie "ioctl TIOCGPTN for /dev/ptmx f    1629         dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1630     $tmp = unpack("i", $tmp);                    1630     $tmp = unpack("i", $tmp);
1631                                                  1631 
1632     sysopen($pts, "/dev/pts/$tmp", O_RDWR | O    1632     sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1633         dodie "Can't open /dev/pts/$tmp";        1633         dodie "Can't open /dev/pts/$tmp";
1634 }                                                1634 }
1635                                                  1635 
1636 sub exec_console {                               1636 sub exec_console {
1637     my ($ptm, $pts) = @_;                        1637     my ($ptm, $pts) = @_;
1638                                                  1638 
1639     close($ptm);                                 1639     close($ptm);
1640                                                  1640 
1641     close(\*STDIN);                              1641     close(\*STDIN);
1642     close(\*STDOUT);                             1642     close(\*STDOUT);
1643     close(\*STDERR);                             1643     close(\*STDERR);
1644                                                  1644 
1645     open(\*STDIN, '<&', $pts);                   1645     open(\*STDIN, '<&', $pts);
1646     open(\*STDOUT, '>&', $pts);                  1646     open(\*STDOUT, '>&', $pts);
1647     open(\*STDERR, '>&', $pts);                  1647     open(\*STDERR, '>&', $pts);
1648                                                  1648 
1649     close($pts);                                 1649     close($pts);
1650                                                  1650 
1651     exec $console or                             1651     exec $console or
1652         dodie "Can't open console $console";     1652         dodie "Can't open console $console";
1653 }                                                1653 }
1654                                                  1654 
1655 sub open_console {                               1655 sub open_console {
1656     my ($ptm) = @_;                              1656     my ($ptm) = @_;
1657     my $pts = \*PTSFD;                           1657     my $pts = \*PTSFD;
1658     my $pid;                                     1658     my $pid;
1659                                                  1659 
1660     # save terminal settings                     1660     # save terminal settings
1661     $stty_orig = `stty -g`;                      1661     $stty_orig = `stty -g`;
1662                                                  1662 
1663     # place terminal in cbreak mode so that s    1663     # place terminal in cbreak mode so that stdin can be read one character at
1664     # a time without having to wait for a new    1664     # a time without having to wait for a newline
1665     system("stty -icanon -echo -icrnl");         1665     system("stty -icanon -echo -icrnl");
1666                                                  1666 
1667     create_pty($ptm, $pts);                      1667     create_pty($ptm, $pts);
1668                                                  1668 
1669     $pid = fork;                                 1669     $pid = fork;
1670                                                  1670 
1671     if (!$pid) {                                 1671     if (!$pid) {
1672         # child                                  1672         # child
1673         exec_console($ptm, $pts)                 1673         exec_console($ptm, $pts)
1674     }                                            1674     }
1675                                                  1675 
1676     # parent                                     1676     # parent
1677     close($pts);                                 1677     close($pts);
1678                                                  1678 
1679     return $pid;                                 1679     return $pid;
1680                                                  1680 
1681     open(PTSFD, "Stop perl from warning about    1681     open(PTSFD, "Stop perl from warning about single use of PTSFD");
1682 }                                                1682 }
1683                                                  1683 
1684 sub close_console {                              1684 sub close_console {
1685     my ($fp, $pid) = @_;                         1685     my ($fp, $pid) = @_;
1686                                                  1686 
1687     doprint "kill child process $pid\n";         1687     doprint "kill child process $pid\n";
1688     kill $close_console_signal, $pid;            1688     kill $close_console_signal, $pid;
1689                                                  1689 
1690     doprint "wait for child process $pid to e    1690     doprint "wait for child process $pid to exit\n";
1691     waitpid($pid, 0);                            1691     waitpid($pid, 0);
1692                                                  1692 
1693     print "closing!\n";                          1693     print "closing!\n";
1694     close($fp);                                  1694     close($fp);
1695                                                  1695 
1696     # restore terminal settings                  1696     # restore terminal settings
1697     system("stty $stty_orig");                   1697     system("stty $stty_orig");
1698 }                                                1698 }
1699                                                  1699 
1700 sub start_monitor {                              1700 sub start_monitor {
1701     if ($monitor_cnt++) {                        1701     if ($monitor_cnt++) {
1702         return;                                  1702         return;
1703     }                                            1703     }
1704     $monitor_fp = \*MONFD;                       1704     $monitor_fp = \*MONFD;
1705     $monitor_pid = open_console $monitor_fp;     1705     $monitor_pid = open_console $monitor_fp;
1706                                                  1706 
1707     return;                                      1707     return;
1708                                                  1708 
1709     open(MONFD, "Stop perl from warning about    1709     open(MONFD, "Stop perl from warning about single use of MONFD");
1710 }                                                1710 }
1711                                                  1711 
1712 sub end_monitor {                                1712 sub end_monitor {
1713     return if (!defined $console);               1713     return if (!defined $console);
1714     if (--$monitor_cnt) {                        1714     if (--$monitor_cnt) {
1715         return;                                  1715         return;
1716     }                                            1716     }
1717     close_console($monitor_fp, $monitor_pid);    1717     close_console($monitor_fp, $monitor_pid);
1718 }                                                1718 }
1719                                                  1719 
1720 sub wait_for_monitor {                           1720 sub wait_for_monitor {
1721     my ($time, $stop) = @_;                      1721     my ($time, $stop) = @_;
1722     my $full_line = "";                          1722     my $full_line = "";
1723     my $line;                                    1723     my $line;
1724     my $booted = 0;                              1724     my $booted = 0;
1725     my $start_time = time;                       1725     my $start_time = time;
1726     my $skip_call_trace = 0;                     1726     my $skip_call_trace = 0;
1727     my $bug = 0;                                 1727     my $bug = 0;
1728     my $bug_ignored = 0;                         1728     my $bug_ignored = 0;
1729     my $now;                                     1729     my $now;
1730                                                  1730 
1731     doprint "** Wait for monitor to settle do    1731     doprint "** Wait for monitor to settle down **\n";
1732                                                  1732 
1733     # read the monitor and wait for the syste    1733     # read the monitor and wait for the system to calm down
1734     while (!$booted) {                           1734     while (!$booted) {
1735         $line = wait_for_input($monitor_fp, $    1735         $line = wait_for_input($monitor_fp, $time);
1736         last if (!defined($line));               1736         last if (!defined($line));
1737         print "$line";                           1737         print "$line";
1738         $full_line .= $line;                     1738         $full_line .= $line;
1739                                                  1739 
1740         if (defined($stop) && $full_line =~ /    1740         if (defined($stop) && $full_line =~ /$stop/) {
1741             doprint "wait for monitor detecte    1741             doprint "wait for monitor detected $stop\n";
1742             $booted = 1;                         1742             $booted = 1;
1743         }                                        1743         }
1744                                                  1744 
1745         if ($full_line =~ /\[ backtrace testi    1745         if ($full_line =~ /\[ backtrace testing \]/) {
1746             $skip_call_trace = 1;                1746             $skip_call_trace = 1;
1747         }                                        1747         }
1748                                                  1748 
1749         if ($full_line =~ /call trace:/i) {      1749         if ($full_line =~ /call trace:/i) {
1750             if (!$bug && !$skip_call_trace) {    1750             if (!$bug && !$skip_call_trace) {
1751                 if ($ignore_errors) {            1751                 if ($ignore_errors) {
1752                     $bug_ignored = 1;            1752                     $bug_ignored = 1;
1753                 } else {                         1753                 } else {
1754                     $bug = 1;                    1754                     $bug = 1;
1755                 }                                1755                 }
1756             }                                    1756             }
1757         }                                        1757         }
1758                                                  1758 
1759         if ($full_line =~ /\[ end of backtrac    1759         if ($full_line =~ /\[ end of backtrace testing \]/) {
1760             $skip_call_trace = 0;                1760             $skip_call_trace = 0;
1761         }                                        1761         }
1762                                                  1762 
1763         if ($full_line =~ /Kernel panic -/) {    1763         if ($full_line =~ /Kernel panic -/) {
1764             $bug = 1;                            1764             $bug = 1;
1765         }                                        1765         }
1766                                                  1766 
1767         if ($line =~ /\n/) {                     1767         if ($line =~ /\n/) {
1768             $full_line = "";                     1768             $full_line = "";
1769         }                                        1769         }
1770         $now = time;                             1770         $now = time;
1771         if ($now - $start_time >= $max_monito    1771         if ($now - $start_time >= $max_monitor_wait) {
1772             doprint "Exiting monitor flush du    1772             doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1773             return 1;                            1773             return 1;
1774         }                                        1774         }
1775     }                                            1775     }
1776     print "** Monitor flushed **\n";             1776     print "** Monitor flushed **\n";
1777                                                  1777 
1778     # if stop is defined but wasn't hit, retu    1778     # if stop is defined but wasn't hit, return error
1779     # used by reboot (which wants to see a re    1779     # used by reboot (which wants to see a reboot)
1780     if (defined($stop) && !$booted) {            1780     if (defined($stop) && !$booted) {
1781         $bug = 1;                                1781         $bug = 1;
1782     }                                            1782     }
1783     return $bug;                                 1783     return $bug;
1784 }                                                1784 }
1785                                                  1785 
1786 sub save_logs {                                  1786 sub save_logs {
1787     my ($result, $basedir) = @_;                 1787     my ($result, $basedir) = @_;
1788     my @t = localtime;                           1788     my @t = localtime;
1789     my $date = sprintf "%04d%02d%02d%02d%02d%    1789     my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1790         1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t    1790         1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1791                                                  1791 
1792     my $type = $build_type;                      1792     my $type = $build_type;
1793     if ($type =~ /useconfig/) {                  1793     if ($type =~ /useconfig/) {
1794         $type = "useconfig";                     1794         $type = "useconfig";
1795     }                                            1795     }
1796                                                  1796 
1797     my $dir = "$machine-$test_type-$type-$res    1797     my $dir = "$machine-$test_type-$type-$result-$date";
1798                                                  1798 
1799     $dir = "$basedir/$dir";                      1799     $dir = "$basedir/$dir";
1800                                                  1800 
1801     if (!-d $dir) {                              1801     if (!-d $dir) {
1802         mkpath($dir) or                          1802         mkpath($dir) or
1803             dodie "can't create $dir";           1803             dodie "can't create $dir";
1804     }                                            1804     }
1805                                                  1805 
1806     my %files = (                                1806     my %files = (
1807         "config" => $output_config,              1807         "config" => $output_config,
1808         "buildlog" => $buildlog,                 1808         "buildlog" => $buildlog,
1809         "dmesg" => $dmesg,                       1809         "dmesg" => $dmesg,
1810         "testlog" => $testlog,                   1810         "testlog" => $testlog,
1811     );                                           1811     );
1812                                                  1812 
1813     while (my ($name, $source) = each(%files)    1813     while (my ($name, $source) = each(%files)) {
1814         if (-f "$source") {                      1814         if (-f "$source") {
1815             cp "$source", "$dir/$name" or        1815             cp "$source", "$dir/$name" or
1816                 dodie "failed to copy $source    1816                 dodie "failed to copy $source";
1817         }                                        1817         }
1818     }                                            1818     }
1819                                                  1819 
1820     doprint "*** Saved info to $dir ***\n";      1820     doprint "*** Saved info to $dir ***\n";
1821 }                                                1821 }
1822                                                  1822 
1823 sub fail {                                       1823 sub fail {
1824                                                  1824 
1825     if ($die_on_failure) {                       1825     if ($die_on_failure) {
1826         dodie @_;                                1826         dodie @_;
1827     }                                            1827     }
1828                                                  1828 
1829     doprint "FAILED\n";                          1829     doprint "FAILED\n";
1830                                                  1830 
1831     my $i = $iteration;                          1831     my $i = $iteration;
1832                                                  1832 
1833     # no need to reboot for just building.       1833     # no need to reboot for just building.
1834     if (!do_not_reboot) {                        1834     if (!do_not_reboot) {
1835         doprint "REBOOTING\n";                   1835         doprint "REBOOTING\n";
1836         reboot_to_good $sleep_time;              1836         reboot_to_good $sleep_time;
1837     }                                            1837     }
1838                                                  1838 
1839     my $name = "";                               1839     my $name = "";
1840                                                  1840 
1841     if (defined($test_name)) {                   1841     if (defined($test_name)) {
1842         $name = " ($test_name)";                 1842         $name = " ($test_name)";
1843     }                                            1843     }
1844                                                  1844 
1845     print_times;                                 1845     print_times;
1846                                                  1846 
1847     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%    1847     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1848     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%    1848     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1849     doprint "KTEST RESULT: TEST $i$name Faile    1849     doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1850     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%    1850     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1851     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%    1851     doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1852                                                  1852 
1853     if (defined($store_failures)) {              1853     if (defined($store_failures)) {
1854         save_logs "fail", $store_failures;       1854         save_logs "fail", $store_failures;
1855     }                                            1855     }
1856                                                  1856 
1857     if (defined($post_test)) {                   1857     if (defined($post_test)) {
1858         run_command $post_test;                  1858         run_command $post_test;
1859     }                                            1859     }
1860                                                  1860 
1861     return 1;                                    1861     return 1;
1862 }                                                1862 }
1863                                                  1863 
1864 sub run_command {                                1864 sub run_command {
1865     my ($command, $redirect, $timeout) = @_;     1865     my ($command, $redirect, $timeout) = @_;
1866     my $start_time;                              1866     my $start_time;
1867     my $end_time;                                1867     my $end_time;
1868     my $dolog = 0;                               1868     my $dolog = 0;
1869     my $dord = 0;                                1869     my $dord = 0;
1870     my $dostdout = 0;                            1870     my $dostdout = 0;
1871     my $pid;                                     1871     my $pid;
1872     my $command_orig = $command;                 1872     my $command_orig = $command;
1873                                                  1873 
1874     $command =~ s/\$SSH_USER/$ssh_user/g;        1874     $command =~ s/\$SSH_USER/$ssh_user/g;
1875     $command =~ s/\$MACHINE/$machine/g;          1875     $command =~ s/\$MACHINE/$machine/g;
1876                                                  1876 
1877     if (!defined($timeout)) {                    1877     if (!defined($timeout)) {
1878         $timeout = $run_timeout;                 1878         $timeout = $run_timeout;
1879     }                                            1879     }
1880                                                  1880 
1881     if (!defined($timeout)) {                    1881     if (!defined($timeout)) {
1882         $timeout = -1; # tell wait_for_input     1882         $timeout = -1; # tell wait_for_input to wait indefinitely
1883     }                                            1883     }
1884                                                  1884 
1885     doprint("$command ... ");                    1885     doprint("$command ... ");
1886     $start_time = time;                          1886     $start_time = time;
1887                                                  1887 
1888     $pid = open(CMD, "$command 2>&1 |") or       1888     $pid = open(CMD, "$command 2>&1 |") or
1889         (fail "unable to exec $command" and r    1889         (fail "unable to exec $command" and return 0);
1890                                                  1890 
1891     if (defined($opt{"LOG_FILE"})) {             1891     if (defined($opt{"LOG_FILE"})) {
1892         $dolog = 1;                              1892         $dolog = 1;
1893     }                                            1893     }
1894                                                  1894 
1895     if (defined($redirect)) {                    1895     if (defined($redirect)) {
1896         if ($redirect eq 1) {                    1896         if ($redirect eq 1) {
1897             $dostdout = 1;                       1897             $dostdout = 1;
1898             # Have the output of the command     1898             # Have the output of the command on its own line
1899             doprint "\n";                        1899             doprint "\n";
1900         } else {                                 1900         } else {
1901             open (RD, ">$redirect") or           1901             open (RD, ">$redirect") or
1902                 dodie "failed to write to red    1902                 dodie "failed to write to redirect $redirect";
1903             $dord = 1;                           1903             $dord = 1;
1904         }                                        1904         }
1905     }                                            1905     }
1906                                                  1906 
1907     my $hit_timeout = 0;                         1907     my $hit_timeout = 0;
1908                                                  1908 
1909     while (1) {                                  1909     while (1) {
1910         my $fp = \*CMD;                          1910         my $fp = \*CMD;
1911         my $line = wait_for_input($fp, $timeo    1911         my $line = wait_for_input($fp, $timeout);
1912         if (!defined($line)) {                   1912         if (!defined($line)) {
1913             my $now = time;                      1913             my $now = time;
1914             if ($timeout >= 0 && (($now - $st    1914             if ($timeout >= 0 && (($now - $start_time) >= $timeout)) {
1915                 doprint "Hit timeout of $time    1915                 doprint "Hit timeout of $timeout, killing process\n";
1916                 $hit_timeout = 1;                1916                 $hit_timeout = 1;
1917                 kill 9, $pid;                    1917                 kill 9, $pid;
1918             }                                    1918             }
1919             last;                                1919             last;
1920         }                                        1920         }
1921         print LOG $line if ($dolog);             1921         print LOG $line if ($dolog);
1922         print RD $line if ($dord);               1922         print RD $line if ($dord);
1923         print $line if ($dostdout);              1923         print $line if ($dostdout);
1924     }                                            1924     }
1925                                                  1925 
1926     waitpid($pid, 0);                            1926     waitpid($pid, 0);
1927     # shift 8 for real exit status               1927     # shift 8 for real exit status
1928     $run_command_status = $? >> 8;               1928     $run_command_status = $? >> 8;
1929                                                  1929 
1930     if ($command_orig eq $default{REBOOT} &&     1930     if ($command_orig eq $default{REBOOT} &&
1931         $run_command_status == $reboot_return    1931         $run_command_status == $reboot_return_code) {
1932         $run_command_status = 0;                 1932         $run_command_status = 0;
1933     }                                            1933     }
1934                                                  1934 
1935     close(CMD);                                  1935     close(CMD);
1936     close(RD)  if ($dord);                       1936     close(RD)  if ($dord);
1937                                                  1937 
1938     $end_time = time;                            1938     $end_time = time;
1939     my $delta = $end_time - $start_time;         1939     my $delta = $end_time - $start_time;
1940                                                  1940 
1941     if ($delta == 1) {                           1941     if ($delta == 1) {
1942         doprint "[1 second] ";                   1942         doprint "[1 second] ";
1943     } else {                                     1943     } else {
1944         doprint "[$delta seconds] ";             1944         doprint "[$delta seconds] ";
1945     }                                            1945     }
1946                                                  1946 
1947     if ($hit_timeout) {                          1947     if ($hit_timeout) {
1948         $run_command_status = 1;                 1948         $run_command_status = 1;
1949     }                                            1949     }
1950                                                  1950 
1951     if ($run_command_status) {                   1951     if ($run_command_status) {
1952         doprint "FAILED!\n";                     1952         doprint "FAILED!\n";
1953     } else {                                     1953     } else {
1954         doprint "SUCCESS\n";                     1954         doprint "SUCCESS\n";
1955     }                                            1955     }
1956                                                  1956 
1957     return !$run_command_status;                 1957     return !$run_command_status;
1958 }                                                1958 }
1959                                                  1959 
1960 sub run_ssh {                                    1960 sub run_ssh {
1961     my ($cmd, $timeout) = @_;                    1961     my ($cmd, $timeout) = @_;
1962     my $cp_exec = $ssh_exec;                     1962     my $cp_exec = $ssh_exec;
1963                                                  1963 
1964     $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;          1964     $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1965     return run_command "$cp_exec", undef , $t    1965     return run_command "$cp_exec", undef , $timeout;
1966 }                                                1966 }
1967                                                  1967 
1968 sub run_scp {                                    1968 sub run_scp {
1969     my ($src, $dst, $cp_scp) = @_;               1969     my ($src, $dst, $cp_scp) = @_;
1970                                                  1970 
1971     $cp_scp =~ s/\$SRC_FILE/$src/g;              1971     $cp_scp =~ s/\$SRC_FILE/$src/g;
1972     $cp_scp =~ s/\$DST_FILE/$dst/g;              1972     $cp_scp =~ s/\$DST_FILE/$dst/g;
1973                                                  1973 
1974     return run_command "$cp_scp";                1974     return run_command "$cp_scp";
1975 }                                                1975 }
1976                                                  1976 
1977 sub run_scp_install {                            1977 sub run_scp_install {
1978     my ($src, $dst) = @_;                        1978     my ($src, $dst) = @_;
1979                                                  1979 
1980     my $cp_scp = $scp_to_target_install;         1980     my $cp_scp = $scp_to_target_install;
1981                                                  1981 
1982     return run_scp($src, $dst, $cp_scp);         1982     return run_scp($src, $dst, $cp_scp);
1983 }                                                1983 }
1984                                                  1984 
1985 sub run_scp_mod {                                1985 sub run_scp_mod {
1986     my ($src, $dst) = @_;                        1986     my ($src, $dst) = @_;
1987                                                  1987 
1988     my $cp_scp = $scp_to_target;                 1988     my $cp_scp = $scp_to_target;
1989                                                  1989 
1990     return run_scp($src, $dst, $cp_scp);         1990     return run_scp($src, $dst, $cp_scp);
1991 }                                                1991 }
1992                                                  1992 
1993 sub _get_grub_index {                            1993 sub _get_grub_index {
1994                                                  1994 
1995     my ($command, $target, $skip, $submenu) =    1995     my ($command, $target, $skip, $submenu) = @_;
1996                                                  1996 
1997     return if (defined($grub_number) && defin    1997     return if (defined($grub_number) && defined($last_grub_menu) &&
1998         $last_grub_menu eq $grub_menu && defi    1998         $last_grub_menu eq $grub_menu && defined($last_machine) &&
1999         $last_machine eq $machine);              1999         $last_machine eq $machine);
2000                                                  2000 
2001     doprint "Find $reboot_type menu ... ";       2001     doprint "Find $reboot_type menu ... ";
2002     $grub_number = -1;                           2002     $grub_number = -1;
2003                                                  2003 
2004     my $ssh_grub = $ssh_exec;                    2004     my $ssh_grub = $ssh_exec;
2005     $ssh_grub =~ s,\$SSH_COMMAND,$command,g;     2005     $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
2006                                                  2006 
2007     open(IN, "$ssh_grub |") or                   2007     open(IN, "$ssh_grub |") or
2008         dodie "unable to execute $command";      2008         dodie "unable to execute $command";
2009                                                  2009 
2010     my $found = 0;                               2010     my $found = 0;
2011                                                  2011 
2012     my $submenu_number = 0;                      2012     my $submenu_number = 0;
2013                                                  2013 
2014     while (<IN>) {                               2014     while (<IN>) {
2015         if (/$target/) {                         2015         if (/$target/) {
2016             $grub_number++;                      2016             $grub_number++;
2017             $found = 1;                          2017             $found = 1;
2018             last;                                2018             last;
2019         } elsif (defined($submenu) && /$subme    2019         } elsif (defined($submenu) && /$submenu/) {
2020                 $submenu_number++;               2020                 $submenu_number++;
2021                 $grub_number = -1;               2021                 $grub_number = -1;
2022         } elsif (/$skip/) {                      2022         } elsif (/$skip/) {
2023             $grub_number++;                      2023             $grub_number++;
2024         }                                        2024         }
2025     }                                            2025     }
2026     close(IN);                                   2026     close(IN);
2027                                                  2027 
2028     dodie "Could not find '$grub_menu' throug    2028     dodie "Could not find '$grub_menu' through $command on $machine"
2029         if (!$found);                            2029         if (!$found);
2030     if ($submenu_number > 0) {                   2030     if ($submenu_number > 0) {
2031         $grub_number = "$submenu_number>$grub    2031         $grub_number = "$submenu_number>$grub_number";
2032     }                                            2032     }
2033     doprint "$grub_number\n";                    2033     doprint "$grub_number\n";
2034     $last_grub_menu = $grub_menu;                2034     $last_grub_menu = $grub_menu;
2035     $last_machine = $machine;                    2035     $last_machine = $machine;
2036 }                                                2036 }
2037                                                  2037 
2038 sub get_grub_index {                             2038 sub get_grub_index {
2039                                                  2039 
2040     my $command;                                 2040     my $command;
2041     my $target;                                  2041     my $target;
2042     my $skip;                                    2042     my $skip;
2043     my $submenu;                                 2043     my $submenu;
2044     my $grub_menu_qt;                            2044     my $grub_menu_qt;
2045                                                  2045 
2046     if ($reboot_type !~ /^grub/) {               2046     if ($reboot_type !~ /^grub/) {
2047         return;                                  2047         return;
2048     }                                            2048     }
2049                                                  2049 
2050     $grub_menu_qt = quotemeta($grub_menu);       2050     $grub_menu_qt = quotemeta($grub_menu);
2051                                                  2051 
2052     if ($reboot_type eq "grub") {                2052     if ($reboot_type eq "grub") {
2053         $command = "cat /boot/grub/menu.lst";    2053         $command = "cat /boot/grub/menu.lst";
2054         $target = '^\s*title\s+' . $grub_menu    2054         $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2055         $skip = '^\s*title\s';                   2055         $skip = '^\s*title\s';
2056     } elsif ($reboot_type eq "grub2") {          2056     } elsif ($reboot_type eq "grub2") {
2057         $command = "cat $grub_file";             2057         $command = "cat $grub_file";
2058         $target = '^\s*menuentry.*' . $grub_m    2058         $target = '^\s*menuentry.*' . $grub_menu_qt;
2059         $skip = '^\s*menuentry\s';               2059         $skip = '^\s*menuentry\s';
2060         $submenu = '^\s*submenu\s';              2060         $submenu = '^\s*submenu\s';
2061     } elsif ($reboot_type eq "grub2bls") {       2061     } elsif ($reboot_type eq "grub2bls") {
2062         $command = $grub_bls_get;                2062         $command = $grub_bls_get;
2063         $target = '^title=.*' . $grub_menu_qt    2063         $target = '^title=.*' . $grub_menu_qt;
2064         $skip = '^title=';                       2064         $skip = '^title=';
2065     } else {                                     2065     } else {
2066         return;                                  2066         return;
2067     }                                            2067     }
2068                                                  2068 
2069     _get_grub_index($command, $target, $skip,    2069     _get_grub_index($command, $target, $skip, $submenu);
2070 }                                                2070 }
2071                                                  2071 
2072 sub wait_for_input {                             2072 sub wait_for_input {
2073     my ($fp, $time) = @_;                        2073     my ($fp, $time) = @_;
2074     my $start_time;                              2074     my $start_time;
2075     my $rin;                                     2075     my $rin;
2076     my $rout;                                    2076     my $rout;
2077     my $nr;                                      2077     my $nr;
2078     my $buf;                                     2078     my $buf;
2079     my $line;                                    2079     my $line;
2080     my $ch;                                      2080     my $ch;
2081                                                  2081 
2082     if (!defined($time)) {                       2082     if (!defined($time)) {
2083         $time = $timeout;                        2083         $time = $timeout;
2084     }                                            2084     }
2085                                                  2085 
2086     if ($time < 0) {                             2086     if ($time < 0) {
2087         # Negative number means wait indefini    2087         # Negative number means wait indefinitely
2088         undef $time;                             2088         undef $time;
2089     }                                            2089     }
2090                                                  2090 
2091     $rin = '';                                   2091     $rin = '';
2092     vec($rin, fileno($fp), 1) = 1;               2092     vec($rin, fileno($fp), 1) = 1;
2093     vec($rin, fileno(\*STDIN), 1) = 1;           2093     vec($rin, fileno(\*STDIN), 1) = 1;
2094                                                  2094 
2095     $start_time = time;                          2095     $start_time = time;
2096                                                  2096 
2097     while (1) {                                  2097     while (1) {
2098         $nr = select($rout=$rin, undef, undef    2098         $nr = select($rout=$rin, undef, undef, $time);
2099                                                  2099 
2100         last if ($nr <= 0);                      2100         last if ($nr <= 0);
2101                                                  2101 
2102         # copy data from stdin to the console    2102         # copy data from stdin to the console
2103         if (vec($rout, fileno(\*STDIN), 1) ==    2103         if (vec($rout, fileno(\*STDIN), 1) == 1) {
2104             $nr = sysread(\*STDIN, $buf, 1000    2104             $nr = sysread(\*STDIN, $buf, 1000);
2105             syswrite($fp, $buf, $nr) if ($nr     2105             syswrite($fp, $buf, $nr) if ($nr > 0);
2106         }                                        2106         }
2107                                                  2107 
2108         # The timeout is based on time waitin    2108         # The timeout is based on time waiting for the fp data
2109         if (vec($rout, fileno($fp), 1) != 1)     2109         if (vec($rout, fileno($fp), 1) != 1) {
2110             last if (defined($time) && (time     2110             last if (defined($time) && (time - $start_time > $time));
2111             next;                                2111             next;
2112         }                                        2112         }
2113                                                  2113 
2114         $line = "";                              2114         $line = "";
2115                                                  2115 
2116         # try to read one char at a time         2116         # try to read one char at a time
2117         while (sysread $fp, $ch, 1) {            2117         while (sysread $fp, $ch, 1) {
2118             $line .= $ch;                        2118             $line .= $ch;
2119             last if ($ch eq "\n");               2119             last if ($ch eq "\n");
2120         }                                        2120         }
2121                                                  2121 
2122         last if (!length($line));                2122         last if (!length($line));
2123                                                  2123 
2124         return $line;                            2124         return $line;
2125     }                                            2125     }
2126     return undef;                                2126     return undef;
2127 }                                                2127 }
2128                                                  2128 
2129 sub reboot_to {                                  2129 sub reboot_to {
2130     if (defined($switch_to_test)) {              2130     if (defined($switch_to_test)) {
2131         run_command $switch_to_test;             2131         run_command $switch_to_test;
2132     }                                            2132     }
2133                                                  2133 
2134     if ($reboot_type eq "grub") {                2134     if ($reboot_type eq "grub") {
2135         run_ssh "'(echo \"savedefault --defau    2135         run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2136     } elsif (($reboot_type eq "grub2") or ($r    2136     } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2137         run_ssh "$grub_reboot \"'$grub_number    2137         run_ssh "$grub_reboot \"'$grub_number'\"";
2138     } elsif ($reboot_type eq "syslinux") {       2138     } elsif ($reboot_type eq "syslinux") {
2139         run_ssh "$syslinux --once \\\"$syslin    2139         run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2140     } elsif (defined $reboot_script) {           2140     } elsif (defined $reboot_script) {
2141         run_command "$reboot_script";            2141         run_command "$reboot_script";
2142     }                                            2142     }
2143     reboot;                                      2143     reboot;
2144 }                                                2144 }
2145                                                  2145 
2146 sub get_sha1 {                                   2146 sub get_sha1 {
2147     my ($commit) = @_;                           2147     my ($commit) = @_;
2148                                                  2148 
2149     doprint "git rev-list --max-count=1 $comm    2149     doprint "git rev-list --max-count=1 $commit ... ";
2150     my $sha1 = `git rev-list --max-count=1 $c    2150     my $sha1 = `git rev-list --max-count=1 $commit`;
2151     my $ret = $?;                                2151     my $ret = $?;
2152                                                  2152 
2153     logit $sha1;                                 2153     logit $sha1;
2154                                                  2154 
2155     if ($ret) {                                  2155     if ($ret) {
2156         doprint "FAILED\n";                      2156         doprint "FAILED\n";
2157         dodie "Failed to get git $commit";       2157         dodie "Failed to get git $commit";
2158     }                                            2158     }
2159                                                  2159 
2160     print "SUCCESS\n";                           2160     print "SUCCESS\n";
2161                                                  2161 
2162     chomp $sha1;                                 2162     chomp $sha1;
2163                                                  2163 
2164     return $sha1;                                2164     return $sha1;
2165 }                                                2165 }
2166                                                  2166 
2167 sub monitor {                                    2167 sub monitor {
2168     my $booted = 0;                              2168     my $booted = 0;
2169     my $bug = 0;                                 2169     my $bug = 0;
2170     my $bug_ignored = 0;                         2170     my $bug_ignored = 0;
2171     my $skip_call_trace = 0;                     2171     my $skip_call_trace = 0;
2172     my $loops;                                   2172     my $loops;
2173                                                  2173 
2174     my $start_time = time;                       2174     my $start_time = time;
2175                                                  2175 
2176     wait_for_monitor 5;                          2176     wait_for_monitor 5;
2177                                                  2177 
2178     my $line;                                    2178     my $line;
2179     my $full_line = "";                          2179     my $full_line = "";
2180                                                  2180 
2181     open(DMESG, "> $dmesg") or                   2181     open(DMESG, "> $dmesg") or
2182         dodie "unable to write to $dmesg";       2182         dodie "unable to write to $dmesg";
2183                                                  2183 
2184     reboot_to;                                   2184     reboot_to;
2185                                                  2185 
2186     my $success_start;                           2186     my $success_start;
2187     my $failure_start;                           2187     my $failure_start;
2188     my $monitor_start = time;                    2188     my $monitor_start = time;
2189     my $done = 0;                                2189     my $done = 0;
2190     my $version_found = 0;                       2190     my $version_found = 0;
2191                                                  2191 
2192     while (!$done) {                             2192     while (!$done) {
2193         if ($bug && defined($stop_after_failu    2193         if ($bug && defined($stop_after_failure) &&
2194             $stop_after_failure >= 0) {          2194             $stop_after_failure >= 0) {
2195             my $time = $stop_after_failure -     2195             my $time = $stop_after_failure - (time - $failure_start);
2196             $line = wait_for_input($monitor_f    2196             $line = wait_for_input($monitor_fp, $time);
2197             if (!defined($line)) {               2197             if (!defined($line)) {
2198                 doprint "bug timed out after     2198                 doprint "bug timed out after $booted_timeout seconds\n";
2199                 doprint "Test forced to stop     2199                 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2200                 last;                            2200                 last;
2201             }                                    2201             }
2202         } elsif ($booted) {                      2202         } elsif ($booted) {
2203             $line = wait_for_input($monitor_f    2203             $line = wait_for_input($monitor_fp, $booted_timeout);
2204             if (!defined($line)) {               2204             if (!defined($line)) {
2205                 my $s = $booted_timeout == 1     2205                 my $s = $booted_timeout == 1 ? "" : "s";
2206                 doprint "Successful boot foun    2206                 doprint "Successful boot found: break after $booted_timeout second$s\n";
2207                 last;                            2207                 last;
2208             }                                    2208             }
2209         } else {                                 2209         } else {
2210             $line = wait_for_input($monitor_f    2210             $line = wait_for_input($monitor_fp);
2211             if (!defined($line)) {               2211             if (!defined($line)) {
2212                 my $s = $timeout == 1 ? "" :     2212                 my $s = $timeout == 1 ? "" : "s";
2213                 doprint "Timed out after $tim    2213                 doprint "Timed out after $timeout second$s\n";
2214                 last;                            2214                 last;
2215             }                                    2215             }
2216         }                                        2216         }
2217                                                  2217 
2218         doprint $line;                           2218         doprint $line;
2219         print DMESG $line;                       2219         print DMESG $line;
2220                                                  2220 
2221         # we are not guaranteed to get a full    2221         # we are not guaranteed to get a full line
2222         $full_line .= $line;                     2222         $full_line .= $line;
2223                                                  2223 
2224         if ($full_line =~ /$success_line/) {     2224         if ($full_line =~ /$success_line/) {
2225             $booted = 1;                         2225             $booted = 1;
2226             $success_start = time;               2226             $success_start = time;
2227         }                                        2227         }
2228                                                  2228 
2229         if ($booted && defined($stop_after_su    2229         if ($booted && defined($stop_after_success) &&
2230             $stop_after_success >= 0) {          2230             $stop_after_success >= 0) {
2231             my $now = time;                      2231             my $now = time;
2232             if ($now - $success_start >= $sto    2232             if ($now - $success_start >= $stop_after_success) {
2233                 doprint "Test forced to stop     2233                 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2234                 last;                            2234                 last;
2235             }                                    2235             }
2236         }                                        2236         }
2237                                                  2237 
2238         if ($full_line =~ /\[ backtrace testi    2238         if ($full_line =~ /\[ backtrace testing \]/) {
2239             $skip_call_trace = 1;                2239             $skip_call_trace = 1;
2240         }                                        2240         }
2241                                                  2241 
2242         if ($full_line =~ /call trace:/i) {      2242         if ($full_line =~ /call trace:/i) {
2243             if (!$bug && !$skip_call_trace) {    2243             if (!$bug && !$skip_call_trace) {
2244                 if ($ignore_errors) {            2244                 if ($ignore_errors) {
2245                     $bug_ignored = 1;            2245                     $bug_ignored = 1;
2246                 } else {                         2246                 } else {
2247                     $bug = 1;                    2247                     $bug = 1;
2248                     $failure_start = time;       2248                     $failure_start = time;
2249                 }                                2249                 }
2250             }                                    2250             }
2251         }                                        2251         }
2252                                                  2252 
2253         if ($bug && defined($stop_after_failu    2253         if ($bug && defined($stop_after_failure) &&
2254             $stop_after_failure >= 0) {          2254             $stop_after_failure >= 0) {
2255             my $now = time;                      2255             my $now = time;
2256             if ($now - $failure_start >= $sto    2256             if ($now - $failure_start >= $stop_after_failure) {
2257                 doprint "Test forced to stop     2257                 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2258                 last;                            2258                 last;
2259             }                                    2259             }
2260         }                                        2260         }
2261                                                  2261 
2262         if ($full_line =~ /\[ end of backtrac    2262         if ($full_line =~ /\[ end of backtrace testing \]/) {
2263             $skip_call_trace = 0;                2263             $skip_call_trace = 0;
2264         }                                        2264         }
2265                                                  2265 
2266         if ($full_line =~ /Kernel panic -/) {    2266         if ($full_line =~ /Kernel panic -/) {
2267             $failure_start = time;               2267             $failure_start = time;
2268             $bug = 1;                            2268             $bug = 1;
2269         }                                        2269         }
2270                                                  2270 
2271         # Detect triple faults by testing the    2271         # Detect triple faults by testing the banner
2272         if ($full_line =~ /\bLinux version (\    2272         if ($full_line =~ /\bLinux version (\S+).*\n/) {
2273             if ($1 eq $version) {                2273             if ($1 eq $version) {
2274                 $version_found = 1;              2274                 $version_found = 1;
2275             } elsif ($version_found && $detec    2275             } elsif ($version_found && $detect_triplefault) {
2276                 # We already booted into the     2276                 # We already booted into the kernel we are testing,
2277                 # but now we booted into anot    2277                 # but now we booted into another kernel?
2278                 # Consider this a triple faul    2278                 # Consider this a triple fault.
2279                 doprint "Already booted in Li    2279                 doprint "Already booted in Linux kernel $version, but now\n";
2280                 doprint "we booted into Linux    2280                 doprint "we booted into Linux kernel $1.\n";
2281                 doprint "Assuming that this i    2281                 doprint "Assuming that this is a triple fault.\n";
2282                 doprint "To disable this: set    2282                 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2283                 last;                            2283                 last;
2284             }                                    2284             }
2285         }                                        2285         }
2286                                                  2286 
2287         if ($line =~ /\n/) {                     2287         if ($line =~ /\n/) {
2288             $full_line = "";                     2288             $full_line = "";
2289         }                                        2289         }
2290                                                  2290 
2291         if ($stop_test_after > 0 && !$booted     2291         if ($stop_test_after > 0 && !$booted && !$bug) {
2292             if (time - $monitor_start > $stop    2292             if (time - $monitor_start > $stop_test_after) {
2293                 doprint "STOP_TEST_AFTER ($st    2293                 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2294                 $done = 1;                       2294                 $done = 1;
2295             }                                    2295             }
2296         }                                        2296         }
2297     }                                            2297     }
2298                                                  2298 
2299     my $end_time = time;                         2299     my $end_time = time;
2300     $reboot_time = $end_time - $start_time;      2300     $reboot_time = $end_time - $start_time;
2301                                                  2301 
2302     close(DMESG);                                2302     close(DMESG);
2303                                                  2303 
2304     if ($bug) {                                  2304     if ($bug) {
2305         return 0 if ($in_bisect);                2305         return 0 if ($in_bisect);
2306         fail "failed - got a bug report" and     2306         fail "failed - got a bug report" and return 0;
2307     }                                            2307     }
2308                                                  2308 
2309     if (!$booted) {                              2309     if (!$booted) {
2310         return 0 if ($in_bisect);                2310         return 0 if ($in_bisect);
2311         fail "failed - never got a boot promp    2311         fail "failed - never got a boot prompt." and return 0;
2312     }                                            2312     }
2313                                                  2313 
2314     if ($bug_ignored) {                          2314     if ($bug_ignored) {
2315         doprint "WARNING: Call Trace detected    2315         doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2316     }                                            2316     }
2317                                                  2317 
2318     return 1;                                    2318     return 1;
2319 }                                                2319 }
2320                                                  2320 
2321 sub eval_kernel_version {                        2321 sub eval_kernel_version {
2322     my ($option) = @_;                           2322     my ($option) = @_;
2323                                                  2323 
2324     $option =~ s/\$KERNEL_VERSION/$version/g;    2324     $option =~ s/\$KERNEL_VERSION/$version/g;
2325                                                  2325 
2326     return $option;                              2326     return $option;
2327 }                                                2327 }
2328                                                  2328 
2329 sub do_post_install {                            2329 sub do_post_install {
2330                                                  2330 
2331     return if (!defined($post_install));         2331     return if (!defined($post_install));
2332                                                  2332 
2333     my $cp_post_install = eval_kernel_version    2333     my $cp_post_install = eval_kernel_version $post_install;
2334     run_command "$cp_post_install" or            2334     run_command "$cp_post_install" or
2335         dodie "Failed to run post install";      2335         dodie "Failed to run post install";
2336 }                                                2336 }
2337                                                  2337 
2338 # Sometimes the reboot fails, and will hang.     2338 # Sometimes the reboot fails, and will hang. We try to ssh to the box
2339 # and if we fail, we force another reboot, th    2339 # and if we fail, we force another reboot, that should powercycle it.
2340 sub test_booted {                                2340 sub test_booted {
2341     if (!run_ssh "echo testing connection") {    2341     if (!run_ssh "echo testing connection") {
2342         reboot $sleep_time;                      2342         reboot $sleep_time;
2343     }                                            2343     }
2344 }                                                2344 }
2345                                                  2345 
2346 sub install {                                    2346 sub install {
2347                                                  2347 
2348     return if ($no_install);                     2348     return if ($no_install);
2349                                                  2349 
2350     my $start_time = time;                       2350     my $start_time = time;
2351                                                  2351 
2352     if (defined($pre_install)) {                 2352     if (defined($pre_install)) {
2353         my $cp_pre_install = eval_kernel_vers    2353         my $cp_pre_install = eval_kernel_version $pre_install;
2354         run_command "$cp_pre_install" or         2354         run_command "$cp_pre_install" or
2355             dodie "Failed to run pre install"    2355             dodie "Failed to run pre install";
2356     }                                            2356     }
2357                                                  2357 
2358     my $cp_target = eval_kernel_version $targ    2358     my $cp_target = eval_kernel_version $target_image;
2359                                                  2359 
2360     test_booted;                                 2360     test_booted;
2361                                                  2361 
2362     run_scp_install "$outputdir/$build_target    2362     run_scp_install "$outputdir/$build_target", "$cp_target" or
2363         dodie "failed to copy image";            2363         dodie "failed to copy image";
2364                                                  2364 
2365     my $install_mods = 0;                        2365     my $install_mods = 0;
2366                                                  2366 
2367     # should we process modules?                 2367     # should we process modules?
2368     $install_mods = 0;                           2368     $install_mods = 0;
2369     open(IN, "$output_config") or dodie("Can'    2369     open(IN, "$output_config") or dodie("Can't read config file");
2370     while (<IN>) {                               2370     while (<IN>) {
2371         if (/CONFIG_MODULES(=y)?/) {             2371         if (/CONFIG_MODULES(=y)?/) {
2372             if (defined($1)) {                   2372             if (defined($1)) {
2373                 $install_mods = 1;               2373                 $install_mods = 1;
2374                 last;                            2374                 last;
2375             }                                    2375             }
2376         }                                        2376         }
2377     }                                            2377     }
2378     close(IN);                                   2378     close(IN);
2379                                                  2379 
2380     if (!$install_mods) {                        2380     if (!$install_mods) {
2381         do_post_install;                         2381         do_post_install;
2382         doprint "No modules needed\n";           2382         doprint "No modules needed\n";
2383         my $end_time = time;                     2383         my $end_time = time;
2384         $install_time = $end_time - $start_ti    2384         $install_time = $end_time - $start_time;
2385         return;                                  2385         return;
2386     }                                            2386     }
2387                                                  2387 
2388     run_command "$make INSTALL_MOD_STRIP=1 IN    2388     run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2389         dodie "Failed to install modules";       2389         dodie "Failed to install modules";
2390                                                  2390 
2391     my $modlib = "/lib/modules/$version";        2391     my $modlib = "/lib/modules/$version";
2392     my $modtar = "ktest-mods.tar.bz2";           2392     my $modtar = "ktest-mods.tar.bz2";
2393                                                  2393 
2394     run_ssh "rm -rf $modlib" or                  2394     run_ssh "rm -rf $modlib" or
2395         dodie "failed to remove old mods: $mo    2395         dodie "failed to remove old mods: $modlib";
2396                                                  2396 
2397     # would be nice if scp -r did not follow     2397     # would be nice if scp -r did not follow symbolic links
2398     run_command "cd $tmpdir && tar -cjf $modt    2398     run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2399         dodie "making tarball";                  2399         dodie "making tarball";
2400                                                  2400 
2401     run_scp_mod "$tmpdir/$modtar", "/tmp" or     2401     run_scp_mod "$tmpdir/$modtar", "/tmp" or
2402         dodie "failed to copy modules";          2402         dodie "failed to copy modules";
2403                                                  2403 
2404     unlink "$tmpdir/$modtar";                    2404     unlink "$tmpdir/$modtar";
2405                                                  2405 
2406     run_ssh "'(cd / && tar xjf /tmp/$modtar)'    2406     run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2407         dodie "failed to tar modules";           2407         dodie "failed to tar modules";
2408                                                  2408 
2409     run_ssh "rm -f /tmp/$modtar";                2409     run_ssh "rm -f /tmp/$modtar";
2410                                                  2410 
2411     do_post_install;                             2411     do_post_install;
2412                                                  2412 
2413     my $end_time = time;                         2413     my $end_time = time;
2414     $install_time = $end_time - $start_time;     2414     $install_time = $end_time - $start_time;
2415 }                                                2415 }
2416                                                  2416 
2417 sub get_version {                                2417 sub get_version {
2418     # get the release name                       2418     # get the release name
2419     return if ($have_version);                   2419     return if ($have_version);
2420     doprint "$make kernelrelease ... ";          2420     doprint "$make kernelrelease ... ";
2421     $version = `$make -s kernelrelease | tail    2421     $version = `$make -s kernelrelease | tail -1`;
2422     chomp($version);                             2422     chomp($version);
2423     doprint "$version\n";                        2423     doprint "$version\n";
2424     $have_version = 1;                           2424     $have_version = 1;
2425 }                                                2425 }
2426                                                  2426 
2427 sub start_monitor_and_install {                  2427 sub start_monitor_and_install {
2428     # Make sure the stable kernel has finishe    2428     # Make sure the stable kernel has finished booting
2429                                                  2429 
2430     # Install bisects, don't need console        2430     # Install bisects, don't need console
2431     if (defined $console) {                      2431     if (defined $console) {
2432         start_monitor;                           2432         start_monitor;
2433         wait_for_monitor 5;                      2433         wait_for_monitor 5;
2434         end_monitor;                             2434         end_monitor;
2435     }                                            2435     }
2436                                                  2436 
2437     get_grub_index;                              2437     get_grub_index;
2438     get_version;                                 2438     get_version;
2439     install;                                     2439     install;
2440                                                  2440 
2441     start_monitor if (defined $console);         2441     start_monitor if (defined $console);
2442     return monitor;                              2442     return monitor;
2443 }                                                2443 }
2444                                                  2444 
2445 sub process_warning_line {                       2445 sub process_warning_line {
2446     my ($line) = @_;                             2446     my ($line) = @_;
2447                                                  2447 
2448     chomp $line;                                 2448     chomp $line;
2449                                                  2449 
2450     # for distcc heterogeneous systems, some     2450     # for distcc heterogeneous systems, some compilers
2451     # do things differently causing warning l    2451     # do things differently causing warning lines
2452     # to be slightly different. This makes an    2452     # to be slightly different. This makes an attempt
2453     # to fixe those issues.                      2453     # to fixe those issues.
2454                                                  2454 
2455     # chop off the index into the line           2455     # chop off the index into the line
2456     # using distcc, some compilers give diffe    2456     # using distcc, some compilers give different indexes
2457     # depending on white space                   2457     # depending on white space
2458     $line =~ s/^(\s*\S+:\d+:)\d+/$1/;            2458     $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2459                                                  2459 
2460     # Some compilers use UTF-8 extended for q    2460     # Some compilers use UTF-8 extended for quotes and some don't.
2461     $line =~ s/$utf8_quote/'/g;                  2461     $line =~ s/$utf8_quote/'/g;
2462                                                  2462 
2463     return $line;                                2463     return $line;
2464 }                                                2464 }
2465                                                  2465 
2466 # Read buildlog and check against warnings fi    2466 # Read buildlog and check against warnings file for any
2467 # new warnings.                                  2467 # new warnings.
2468 #                                                2468 #
2469 # Returns 1 if OK                                2469 # Returns 1 if OK
2470 #         0 otherwise                            2470 #         0 otherwise
2471 sub check_buildlog {                             2471 sub check_buildlog {
2472     my %warnings_list;                           2472     my %warnings_list;
2473                                                  2473 
2474     # Failed builds should not reboot the tar    2474     # Failed builds should not reboot the target
2475     my $save_no_reboot = $no_reboot;             2475     my $save_no_reboot = $no_reboot;
2476     $no_reboot = 1;                              2476     $no_reboot = 1;
2477                                                  2477 
2478     if (-f $warnings_file) {                     2478     if (-f $warnings_file) {
2479         open(IN, $warnings_file) or              2479         open(IN, $warnings_file) or
2480             dodie "Error opening $warnings_fi    2480             dodie "Error opening $warnings_file";
2481                                                  2481 
2482         while (<IN>) {                           2482         while (<IN>) {
2483             if (/$check_build_re/) {             2483             if (/$check_build_re/) {
2484                 my $warning = process_warning    2484                 my $warning = process_warning_line $_;
2485                                                  2485 
2486                 $warnings_list{$warning} = 1;    2486                 $warnings_list{$warning} = 1;
2487             }                                    2487             }
2488         }                                        2488         }
2489         close(IN);                               2489         close(IN);
2490     }                                            2490     }
2491                                                  2491 
2492     open(IN, $buildlog) or dodie "Can't open     2492     open(IN, $buildlog) or dodie "Can't open $buildlog";
2493     while (<IN>) {                               2493     while (<IN>) {
2494         if (/$check_build_re/) {                 2494         if (/$check_build_re/) {
2495             my $warning = process_warning_lin    2495             my $warning = process_warning_line $_;
2496                                                  2496 
2497             if (!defined $warnings_list{$warn    2497             if (!defined $warnings_list{$warning}) {
2498                 $warning_found++;                2498                 $warning_found++;
2499                                                  2499 
2500                 # If warnings file didn't exi    2500                 # If warnings file didn't exist, and WARNINGS_FILE exist,
2501                 # then we fail on any warning    2501                 # then we fail on any warning!
2502                 if (defined $warnings_file) {    2502                 if (defined $warnings_file) {
2503                     fail "New warning found (    2503                     fail "New warning found (not in $warnings_file)\n$_\n";
2504                     $no_reboot = $save_no_reb    2504                     $no_reboot = $save_no_reboot;
2505                     return 0;                    2505                     return 0;
2506                 }                                2506                 }
2507             }                                    2507             }
2508         }                                        2508         }
2509     }                                            2509     }
2510     $no_reboot = $save_no_reboot;                2510     $no_reboot = $save_no_reboot;
2511     close(IN);                                   2511     close(IN);
2512 }                                                2512 }
2513                                                  2513 
2514 sub check_patch_buildlog {                       2514 sub check_patch_buildlog {
2515     my ($patch) = @_;                            2515     my ($patch) = @_;
2516                                                  2516 
2517     my @files = `git show $patch | diffstat -    2517     my @files = `git show $patch | diffstat -l`;
2518                                                  2518 
2519     foreach my $file (@files) {                  2519     foreach my $file (@files) {
2520         chomp $file;                             2520         chomp $file;
2521     }                                            2521     }
2522                                                  2522 
2523     open(IN, "git show $patch |") or             2523     open(IN, "git show $patch |") or
2524         dodie "failed to show $patch";           2524         dodie "failed to show $patch";
2525     while (<IN>) {                               2525     while (<IN>) {
2526         if (m,^--- a/(.*),) {                    2526         if (m,^--- a/(.*),) {
2527             chomp $1;                            2527             chomp $1;
2528             $files[$#files] = $1;                2528             $files[$#files] = $1;
2529         }                                        2529         }
2530     }                                            2530     }
2531     close(IN);                                   2531     close(IN);
2532                                                  2532 
2533     open(IN, $buildlog) or dodie "Can't open     2533     open(IN, $buildlog) or dodie "Can't open $buildlog";
2534     while (<IN>) {                               2534     while (<IN>) {
2535         if (/^\s*(.*?):.*(warning|error)/) {     2535         if (/^\s*(.*?):.*(warning|error)/) {
2536             my $err = $1;                        2536             my $err = $1;
2537             foreach my $file (@files) {          2537             foreach my $file (@files) {
2538                 my $fullpath = "$builddir/$fi    2538                 my $fullpath = "$builddir/$file";
2539                 if ($file eq $err || $fullpat    2539                 if ($file eq $err || $fullpath eq $err) {
2540                     fail "$file built with wa    2540                     fail "$file built with warnings" and return 0;
2541                 }                                2541                 }
2542             }                                    2542             }
2543         }                                        2543         }
2544     }                                            2544     }
2545     close(IN);                                   2545     close(IN);
2546                                                  2546 
2547     return 1;                                    2547     return 1;
2548 }                                                2548 }
2549                                                  2549 
2550 sub apply_min_config {                           2550 sub apply_min_config {
2551     my $outconfig = "$output_config.new";        2551     my $outconfig = "$output_config.new";
2552                                                  2552 
2553     # Read the config file and remove anythin    2553     # Read the config file and remove anything that
2554     # is in the force_config hash (from minco    2554     # is in the force_config hash (from minconfig and others)
2555     # then add the force config back.            2555     # then add the force config back.
2556                                                  2556 
2557     doprint "Applying minimum configurations     2557     doprint "Applying minimum configurations into $output_config.new\n";
2558                                                  2558 
2559     open (OUT, ">$outconfig") or                 2559     open (OUT, ">$outconfig") or
2560         dodie "Can't create $outconfig";         2560         dodie "Can't create $outconfig";
2561                                                  2561 
2562     if (-f $output_config) {                     2562     if (-f $output_config) {
2563         open (IN, $output_config) or             2563         open (IN, $output_config) or
2564             dodie "Failed to open $output_con    2564             dodie "Failed to open $output_config";
2565         while (<IN>) {                           2565         while (<IN>) {
2566             if (/^(# )?(CONFIG_[^\s=]*)/) {      2566             if (/^(# )?(CONFIG_[^\s=]*)/) {
2567                 next if (defined($force_confi    2567                 next if (defined($force_config{$2}));
2568             }                                    2568             }
2569             print OUT;                           2569             print OUT;
2570         }                                        2570         }
2571         close IN;                                2571         close IN;
2572     }                                            2572     }
2573     foreach my $config (keys %force_config) {    2573     foreach my $config (keys %force_config) {
2574         print OUT "$force_config{$config}\n";    2574         print OUT "$force_config{$config}\n";
2575     }                                            2575     }
2576     close OUT;                                   2576     close OUT;
2577                                                  2577 
2578     run_command "mv $outconfig $output_config    2578     run_command "mv $outconfig $output_config";
2579 }                                                2579 }
2580                                                  2580 
2581 sub make_oldconfig {                             2581 sub make_oldconfig {
2582                                                  2582 
2583     my @force_list = keys %force_config;         2583     my @force_list = keys %force_config;
2584                                                  2584 
2585     if ($#force_list >= 0) {                     2585     if ($#force_list >= 0) {
2586         apply_min_config;                        2586         apply_min_config;
2587     }                                            2587     }
2588                                                  2588 
2589     if (!run_command "$make olddefconfig") {     2589     if (!run_command "$make olddefconfig") {
2590         # Perhaps olddefconfig doesn't exist     2590         # Perhaps olddefconfig doesn't exist in this version of the kernel
2591         # try oldnoconfig                        2591         # try oldnoconfig
2592         doprint "olddefconfig failed, trying     2592         doprint "olddefconfig failed, trying make oldnoconfig\n";
2593         if (!run_command "$make oldnoconfig")    2593         if (!run_command "$make oldnoconfig") {
2594             doprint "oldnoconfig failed, tryi    2594             doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2595             # try a yes '' | oldconfig           2595             # try a yes '' | oldconfig
2596             run_command "yes '' | $make oldco    2596             run_command "yes '' | $make oldconfig" or
2597                 dodie "failed make config old    2597                 dodie "failed make config oldconfig";
2598         }                                        2598         }
2599     }                                            2599     }
2600 }                                                2600 }
2601                                                  2601 
2602 # read a config file and use this to force ne    2602 # read a config file and use this to force new configs.
2603 sub load_force_config {                          2603 sub load_force_config {
2604     my ($config) = @_;                           2604     my ($config) = @_;
2605                                                  2605 
2606     doprint "Loading force configs from $conf    2606     doprint "Loading force configs from $config\n";
2607     open(IN, $config) or                         2607     open(IN, $config) or
2608         dodie "failed to read $config";          2608         dodie "failed to read $config";
2609     while (<IN>) {                               2609     while (<IN>) {
2610         chomp;                                   2610         chomp;
2611         if (/^(CONFIG[^\s=]*)(\s*=.*)/) {        2611         if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2612             $force_config{$1} = $_;              2612             $force_config{$1} = $_;
2613         } elsif (/^# (CONFIG_\S*) is not set/    2613         } elsif (/^# (CONFIG_\S*) is not set/) {
2614             $force_config{$1} = $_;              2614             $force_config{$1} = $_;
2615         }                                        2615         }
2616     }                                            2616     }
2617     close IN;                                    2617     close IN;
2618 }                                                2618 }
2619                                                  2619 
2620 sub build {                                      2620 sub build {
2621     my ($type) = @_;                             2621     my ($type) = @_;
2622                                                  2622 
2623     unlink $buildlog;                            2623     unlink $buildlog;
2624                                                  2624 
2625     my $start_time = time;                       2625     my $start_time = time;
2626                                                  2626 
2627     # Failed builds should not reboot the tar    2627     # Failed builds should not reboot the target
2628     my $save_no_reboot = $no_reboot;             2628     my $save_no_reboot = $no_reboot;
2629     $no_reboot = 1;                              2629     $no_reboot = 1;
2630                                                  2630 
2631     # Calculate a new version from here.         2631     # Calculate a new version from here.
2632     $have_version = 0;                           2632     $have_version = 0;
2633                                                  2633 
2634     if (defined($pre_build)) {                   2634     if (defined($pre_build)) {
2635         my $ret = run_command $pre_build;        2635         my $ret = run_command $pre_build;
2636         if (!$ret && defined($pre_build_die)     2636         if (!$ret && defined($pre_build_die) &&
2637             $pre_build_die) {                    2637             $pre_build_die) {
2638             dodie "failed to pre_build\n";       2638             dodie "failed to pre_build\n";
2639         }                                        2639         }
2640     }                                            2640     }
2641                                                  2641 
2642     if ($type =~ /^useconfig:(.*)/) {            2642     if ($type =~ /^useconfig:(.*)/) {
2643         run_command "cp $1 $output_config" or    2643         run_command "cp $1 $output_config" or
2644             dodie "could not copy $1 to .conf    2644             dodie "could not copy $1 to .config";
2645                                                  2645 
2646         $type = "oldconfig";                     2646         $type = "oldconfig";
2647     }                                            2647     }
2648                                                  2648 
2649     # old config can ask questions               2649     # old config can ask questions
2650     if ($type eq "oldconfig") {                  2650     if ($type eq "oldconfig") {
2651         $type = "olddefconfig";                  2651         $type = "olddefconfig";
2652                                                  2652 
2653         # allow for empty configs                2653         # allow for empty configs
2654         run_command "touch $output_config";      2654         run_command "touch $output_config";
2655                                                  2655 
2656         if (!$noclean) {                         2656         if (!$noclean) {
2657             run_command "mv $output_config $o    2657             run_command "mv $output_config $outputdir/config_temp" or
2658                 dodie "moving .config";          2658                 dodie "moving .config";
2659                                                  2659 
2660             run_command "$make mrproper" or d    2660             run_command "$make mrproper" or dodie "make mrproper";
2661                                                  2661 
2662             run_command "mv $outputdir/config    2662             run_command "mv $outputdir/config_temp $output_config" or
2663                 dodie "moving config_temp";      2663                 dodie "moving config_temp";
2664         }                                        2664         }
2665     } elsif (!$noclean) {                        2665     } elsif (!$noclean) {
2666         unlink "$output_config";                 2666         unlink "$output_config";
2667         run_command "$make mrproper" or          2667         run_command "$make mrproper" or
2668             dodie "make mrproper";               2668             dodie "make mrproper";
2669     }                                            2669     }
2670                                                  2670 
2671     # add something to distinguish this build    2671     # add something to distinguish this build
2672     open(OUT, "> $outputdir/localversion") or    2672     open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2673     print OUT "$localversion\n";                 2673     print OUT "$localversion\n";
2674     close(OUT);                                  2674     close(OUT);
2675                                                  2675 
2676     if (defined($minconfig)) {                   2676     if (defined($minconfig)) {
2677         load_force_config($minconfig);           2677         load_force_config($minconfig);
2678     }                                            2678     }
2679                                                  2679 
2680     if ($type ne "olddefconfig") {               2680     if ($type ne "olddefconfig") {
2681         run_command "$make $type" or             2681         run_command "$make $type" or
2682             dodie "failed make config";          2682             dodie "failed make config";
2683     }                                            2683     }
2684     # Run old config regardless, to enforce m    2684     # Run old config regardless, to enforce min configurations
2685     make_oldconfig;                              2685     make_oldconfig;
2686                                                  2686 
2687     if (not defined($build_options)){            2687     if (not defined($build_options)){
2688         $build_options = "";                     2688         $build_options = "";
2689     }                                            2689     }
2690     my $build_ret = run_command "$make $build    2690     my $build_ret = run_command "$make $build_options", $buildlog;
2691                                                  2691 
2692     if (defined($post_build)) {                  2692     if (defined($post_build)) {
2693         # Because a post build may change the    2693         # Because a post build may change the kernel version
2694         # do it now.                             2694         # do it now.
2695         get_version;                             2695         get_version;
2696         my $ret = run_command $post_build;       2696         my $ret = run_command $post_build;
2697         if (!$ret && defined($post_build_die)    2697         if (!$ret && defined($post_build_die) &&
2698             $post_build_die) {                   2698             $post_build_die) {
2699             dodie "failed to post_build\n";      2699             dodie "failed to post_build\n";
2700         }                                        2700         }
2701     }                                            2701     }
2702                                                  2702 
2703     if (!$build_ret) {                           2703     if (!$build_ret) {
2704         # bisect may need this to pass           2704         # bisect may need this to pass
2705         if ($in_bisect) {                        2705         if ($in_bisect) {
2706             $no_reboot = $save_no_reboot;        2706             $no_reboot = $save_no_reboot;
2707             return 0;                            2707             return 0;
2708         }                                        2708         }
2709         fail "failed build" and return 0;        2709         fail "failed build" and return 0;
2710     }                                            2710     }
2711                                                  2711 
2712     $no_reboot = $save_no_reboot;                2712     $no_reboot = $save_no_reboot;
2713                                                  2713 
2714     my $end_time = time;                         2714     my $end_time = time;
2715     $build_time = $end_time - $start_time;       2715     $build_time = $end_time - $start_time;
2716                                                  2716 
2717     return 1;                                    2717     return 1;
2718 }                                                2718 }
2719                                                  2719 
2720 sub halt {                                       2720 sub halt {
2721     if (!run_ssh "halt" or defined($power_off    2721     if (!run_ssh "halt" or defined($power_off)) {
2722         if (defined($poweroff_after_halt)) {     2722         if (defined($poweroff_after_halt)) {
2723             sleep $poweroff_after_halt;          2723             sleep $poweroff_after_halt;
2724             run_command "$power_off";            2724             run_command "$power_off";
2725         }                                        2725         }
2726     } else {                                     2726     } else {
2727         # nope? the zap it!                      2727         # nope? the zap it!
2728         run_command "$power_off";                2728         run_command "$power_off";
2729     }                                            2729     }
2730 }                                                2730 }
2731                                                  2731 
2732 sub success {                                    2732 sub success {
2733     my ($i) = @_;                                2733     my ($i) = @_;
2734                                                  2734 
2735     $successes++;                                2735     $successes++;
2736                                                  2736 
2737     my $name = "";                               2737     my $name = "";
2738                                                  2738 
2739     if (defined($test_name)) {                   2739     if (defined($test_name)) {
2740         $name = " ($test_name)";                 2740         $name = " ($test_name)";
2741     }                                            2741     }
2742                                                  2742 
2743     print_times;                                 2743     print_times;
2744                                                  2744 
2745     doprint "\n\n";                              2745     doprint "\n\n";
2746     doprint "********************************    2746     doprint "*******************************************\n";
2747     doprint "********************************    2747     doprint "*******************************************\n";
2748     doprint "KTEST RESULT: TEST $i$name SUCCE    2748     doprint "KTEST RESULT: TEST $i$name SUCCESS!!!!   **\n";
2749     doprint "********************************    2749     doprint "*******************************************\n";
2750     doprint "********************************    2750     doprint "*******************************************\n";
2751                                                  2751 
2752     if (defined($store_successes)) {             2752     if (defined($store_successes)) {
2753         save_logs "success", $store_successes    2753         save_logs "success", $store_successes;
2754     }                                            2754     }
2755                                                  2755 
2756     if ($i != $opt{"NUM_TESTS"} && !do_not_re    2756     if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2757         doprint "Reboot and wait $sleep_time     2757         doprint "Reboot and wait $sleep_time seconds\n";
2758         reboot_to_good $sleep_time;              2758         reboot_to_good $sleep_time;
2759     }                                            2759     }
2760                                                  2760 
2761     if (defined($post_test)) {                   2761     if (defined($post_test)) {
2762         run_command $post_test;                  2762         run_command $post_test;
2763     }                                            2763     }
2764 }                                                2764 }
2765                                                  2765 
2766 sub answer_bisect {                              2766 sub answer_bisect {
2767     for (;;) {                                   2767     for (;;) {
2768         doprint "Pass, fail, or skip? [p/f/s]    2768         doprint "Pass, fail, or skip? [p/f/s]";
2769         my $ans = <STDIN>;                       2769         my $ans = <STDIN>;
2770         chomp $ans;                              2770         chomp $ans;
2771         if ($ans eq "p" || $ans eq "P") {        2771         if ($ans eq "p" || $ans eq "P") {
2772             return 1;                            2772             return 1;
2773         } elsif ($ans eq "f" || $ans eq "F")     2773         } elsif ($ans eq "f" || $ans eq "F") {
2774             return 0;                            2774             return 0;
2775         } elsif ($ans eq "s" || $ans eq "S")     2775         } elsif ($ans eq "s" || $ans eq "S") {
2776             return -1;                           2776             return -1;
2777         } else {                                 2777         } else {
2778             print "Please answer 'p', 'f', or    2778             print "Please answer 'p', 'f', or 's'\n";
2779         }                                        2779         }
2780     }                                            2780     }
2781 }                                                2781 }
2782                                                  2782 
2783 sub child_run_test {                             2783 sub child_run_test {
2784                                                  2784 
2785     # child should have no power                 2785     # child should have no power
2786     $reboot_on_error = 0;                        2786     $reboot_on_error = 0;
2787     $poweroff_on_error = 0;                      2787     $poweroff_on_error = 0;
2788     $die_on_failure = 1;                         2788     $die_on_failure = 1;
2789                                                  2789 
2790     run_command $run_test, $testlog;             2790     run_command $run_test, $testlog;
2791                                                  2791 
2792     exit $run_command_status;                    2792     exit $run_command_status;
2793 }                                                2793 }
2794                                                  2794 
2795 sub child_finished {                             2795 sub child_finished {
2796     $child_done = 1;                             2796     $child_done = 1;
2797 }                                                2797 }
2798                                                  2798 
2799 sub do_run_test {                                2799 sub do_run_test {
2800     my $child_pid;                               2800     my $child_pid;
2801     my $child_exit;                              2801     my $child_exit;
2802     my $line;                                    2802     my $line;
2803     my $full_line;                               2803     my $full_line;
2804     my $bug = 0;                                 2804     my $bug = 0;
2805     my $bug_ignored = 0;                         2805     my $bug_ignored = 0;
2806                                                  2806 
2807     my $start_time = time;                       2807     my $start_time = time;
2808                                                  2808 
2809     wait_for_monitor 1;                          2809     wait_for_monitor 1;
2810                                                  2810 
2811     doprint "run test $run_test\n";              2811     doprint "run test $run_test\n";
2812                                                  2812 
2813     $child_done = 0;                             2813     $child_done = 0;
2814                                                  2814 
2815     $SIG{CHLD} = qw(child_finished);             2815     $SIG{CHLD} = qw(child_finished);
2816                                                  2816 
2817     $child_pid = fork;                           2817     $child_pid = fork;
2818                                                  2818 
2819     child_run_test if (!$child_pid);             2819     child_run_test if (!$child_pid);
2820                                                  2820 
2821     $full_line = "";                             2821     $full_line = "";
2822                                                  2822 
2823     do {                                         2823     do {
2824         $line = wait_for_input($monitor_fp, 1    2824         $line = wait_for_input($monitor_fp, 1);
2825         if (defined($line)) {                    2825         if (defined($line)) {
2826                                                  2826 
2827             # we are not guaranteed to get a     2827             # we are not guaranteed to get a full line
2828             $full_line .= $line;                 2828             $full_line .= $line;
2829             doprint $line;                       2829             doprint $line;
2830                                                  2830 
2831             if ($full_line =~ /call trace:/i)    2831             if ($full_line =~ /call trace:/i) {
2832                 if ($ignore_errors) {            2832                 if ($ignore_errors) {
2833                     $bug_ignored = 1;            2833                     $bug_ignored = 1;
2834                 } else {                         2834                 } else {
2835                     $bug = 1;                    2835                     $bug = 1;
2836                 }                                2836                 }
2837             }                                    2837             }
2838                                                  2838 
2839             if ($full_line =~ /Kernel panic -    2839             if ($full_line =~ /Kernel panic -/) {
2840                 $bug = 1;                        2840                 $bug = 1;
2841             }                                    2841             }
2842                                                  2842 
2843             if ($line =~ /\n/) {                 2843             if ($line =~ /\n/) {
2844                 $full_line = "";                 2844                 $full_line = "";
2845             }                                    2845             }
2846         }                                        2846         }
2847     } while (!$child_done && !$bug);             2847     } while (!$child_done && !$bug);
2848                                                  2848 
2849     if (!$bug && $bug_ignored) {                 2849     if (!$bug && $bug_ignored) {
2850         doprint "WARNING: Call Trace detected    2850         doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2851     }                                            2851     }
2852                                                  2852 
2853     if ($bug) {                                  2853     if ($bug) {
2854         my $failure_start = time;                2854         my $failure_start = time;
2855         my $now;                                 2855         my $now;
2856         do {                                     2856         do {
2857             $line = wait_for_input($monitor_f    2857             $line = wait_for_input($monitor_fp, 1);
2858             if (defined($line)) {                2858             if (defined($line)) {
2859                 doprint $line;                   2859                 doprint $line;
2860             }                                    2860             }
2861             $now = time;                         2861             $now = time;
2862             if ($now - $failure_start >= $sto    2862             if ($now - $failure_start >= $stop_after_failure) {
2863                 last;                            2863                 last;
2864             }                                    2864             }
2865         } while (defined($line));                2865         } while (defined($line));
2866                                                  2866 
2867         doprint "Detected kernel crash!\n";      2867         doprint "Detected kernel crash!\n";
2868         # kill the child with extreme prejudi    2868         # kill the child with extreme prejudice
2869         kill 9, $child_pid;                      2869         kill 9, $child_pid;
2870     }                                            2870     }
2871                                                  2871 
2872     waitpid $child_pid, 0;                       2872     waitpid $child_pid, 0;
2873     $child_exit = $? >> 8;                       2873     $child_exit = $? >> 8;
2874                                                  2874 
2875     my $end_time = time;                         2875     my $end_time = time;
2876     $test_time = $end_time - $start_time;        2876     $test_time = $end_time - $start_time;
2877                                                  2877 
2878     if (!$bug && $in_bisect) {                   2878     if (!$bug && $in_bisect) {
2879         if (defined($bisect_ret_good)) {         2879         if (defined($bisect_ret_good)) {
2880             if ($child_exit == $bisect_ret_go    2880             if ($child_exit == $bisect_ret_good) {
2881                 return 1;                        2881                 return 1;
2882             }                                    2882             }
2883         }                                        2883         }
2884         if (defined($bisect_ret_skip)) {         2884         if (defined($bisect_ret_skip)) {
2885             if ($child_exit == $bisect_ret_sk    2885             if ($child_exit == $bisect_ret_skip) {
2886                 return -1;                       2886                 return -1;
2887             }                                    2887             }
2888         }                                        2888         }
2889         if (defined($bisect_ret_abort)) {        2889         if (defined($bisect_ret_abort)) {
2890             if ($child_exit == $bisect_ret_ab    2890             if ($child_exit == $bisect_ret_abort) {
2891                 fail "test abort" and return     2891                 fail "test abort" and return -2;
2892             }                                    2892             }
2893         }                                        2893         }
2894         if (defined($bisect_ret_bad)) {          2894         if (defined($bisect_ret_bad)) {
2895             if ($child_exit == $bisect_ret_sk    2895             if ($child_exit == $bisect_ret_skip) {
2896                 return 0;                        2896                 return 0;
2897             }                                    2897             }
2898         }                                        2898         }
2899         if (defined($bisect_ret_default)) {      2899         if (defined($bisect_ret_default)) {
2900             if ($bisect_ret_default eq "good"    2900             if ($bisect_ret_default eq "good") {
2901                 return 1;                        2901                 return 1;
2902             } elsif ($bisect_ret_default eq "    2902             } elsif ($bisect_ret_default eq "bad") {
2903                 return 0;                        2903                 return 0;
2904             } elsif ($bisect_ret_default eq "    2904             } elsif ($bisect_ret_default eq "skip") {
2905                 return -1;                       2905                 return -1;
2906             } elsif ($bisect_ret_default eq "    2906             } elsif ($bisect_ret_default eq "abort") {
2907                 return -2;                       2907                 return -2;
2908             } else {                             2908             } else {
2909                 fail "unknown default action:    2909                 fail "unknown default action: $bisect_ret_default"
2910                     and return -2;               2910                     and return -2;
2911             }                                    2911             }
2912         }                                        2912         }
2913     }                                            2913     }
2914                                                  2914 
2915     if ($bug || $child_exit) {                   2915     if ($bug || $child_exit) {
2916         return 0 if $in_bisect;                  2916         return 0 if $in_bisect;
2917         fail "test failed" and return 0;         2917         fail "test failed" and return 0;
2918     }                                            2918     }
2919     return 1;                                    2919     return 1;
2920 }                                                2920 }
2921                                                  2921 
2922 sub run_git_bisect {                             2922 sub run_git_bisect {
2923     my ($command) = @_;                          2923     my ($command) = @_;
2924                                                  2924 
2925     doprint "$command ... ";                     2925     doprint "$command ... ";
2926                                                  2926 
2927     my $output = `$command 2>&1`;                2927     my $output = `$command 2>&1`;
2928     my $ret = $?;                                2928     my $ret = $?;
2929                                                  2929 
2930     logit $output;                               2930     logit $output;
2931                                                  2931 
2932     if ($ret) {                                  2932     if ($ret) {
2933         doprint "FAILED\n";                      2933         doprint "FAILED\n";
2934         dodie "Failed to git bisect";            2934         dodie "Failed to git bisect";
2935     }                                            2935     }
2936                                                  2936 
2937     doprint "SUCCESS\n";                         2937     doprint "SUCCESS\n";
2938     if ($output =~ m/^(Bisecting: .*\(roughly    2938     if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2939         doprint "$1 [$2]\n";                     2939         doprint "$1 [$2]\n";
2940     } elsif ($output =~ m/^([[:xdigit:]]+) is    2940     } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2941         $bisect_bad_commit = $1;                 2941         $bisect_bad_commit = $1;
2942         doprint "Found bad commit... $1\n";      2942         doprint "Found bad commit... $1\n";
2943         return 0;                                2943         return 0;
2944     } else {                                     2944     } else {
2945         # we already logged it, just print it    2945         # we already logged it, just print it now.
2946         print $output;                           2946         print $output;
2947     }                                            2947     }
2948                                                  2948 
2949     return 1;                                    2949     return 1;
2950 }                                                2950 }
2951                                                  2951 
2952 sub bisect_reboot {                              2952 sub bisect_reboot {
2953     doprint "Reboot and sleep $bisect_sleep_t    2953     doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2954     reboot_to_good $bisect_sleep_time;           2954     reboot_to_good $bisect_sleep_time;
2955 }                                                2955 }
2956                                                  2956 
2957 # returns 1 on success, 0 on failure, -1 on s    2957 # returns 1 on success, 0 on failure, -1 on skip
2958 sub run_bisect_test {                            2958 sub run_bisect_test {
2959     my ($type, $buildtype) = @_;                 2959     my ($type, $buildtype) = @_;
2960                                                  2960 
2961     my $failed = 0;                              2961     my $failed = 0;
2962     my $result;                                  2962     my $result;
2963     my $output;                                  2963     my $output;
2964     my $ret;                                     2964     my $ret;
2965                                                  2965 
2966     $in_bisect = 1;                              2966     $in_bisect = 1;
2967                                                  2967 
2968     build $buildtype or $failed = 1;             2968     build $buildtype or $failed = 1;
2969                                                  2969 
2970     if ($type ne "build") {                      2970     if ($type ne "build") {
2971         if ($failed && $bisect_skip) {           2971         if ($failed && $bisect_skip) {
2972             $in_bisect = 0;                      2972             $in_bisect = 0;
2973             return -1;                           2973             return -1;
2974         }                                        2974         }
2975         dodie "Failed on build" if $failed;      2975         dodie "Failed on build" if $failed;
2976                                                  2976 
2977         # Now boot the box                       2977         # Now boot the box
2978         start_monitor_and_install or $failed     2978         start_monitor_and_install or $failed = 1;
2979                                                  2979 
2980         if ($type ne "boot") {                   2980         if ($type ne "boot") {
2981             if ($failed && $bisect_skip) {       2981             if ($failed && $bisect_skip) {
2982                 end_monitor;                     2982                 end_monitor;
2983                 bisect_reboot;                   2983                 bisect_reboot;
2984                 $in_bisect = 0;                  2984                 $in_bisect = 0;
2985                 return -1;                       2985                 return -1;
2986             }                                    2986             }
2987             dodie "Failed on boot" if $failed    2987             dodie "Failed on boot" if $failed;
2988                                                  2988 
2989             do_run_test or $failed = 1;          2989             do_run_test or $failed = 1;
2990         }                                        2990         }
2991         end_monitor;                             2991         end_monitor;
2992     }                                            2992     }
2993                                                  2993 
2994     if ($failed) {                               2994     if ($failed) {
2995         $result = 0;                             2995         $result = 0;
2996     } else {                                     2996     } else {
2997         $result = 1;                             2997         $result = 1;
2998     }                                            2998     }
2999                                                  2999 
3000     # reboot the box to a kernel we can ssh t    3000     # reboot the box to a kernel we can ssh to
3001     if ($type ne "build") {                      3001     if ($type ne "build") {
3002         bisect_reboot;                           3002         bisect_reboot;
3003     }                                            3003     }
3004     $in_bisect = 0;                              3004     $in_bisect = 0;
3005                                                  3005 
3006     return $result;                              3006     return $result;
3007 }                                                3007 }
3008                                                  3008 
3009 sub run_bisect {                                 3009 sub run_bisect {
3010     my ($type) = @_;                             3010     my ($type) = @_;
3011     my $buildtype = "oldconfig";                 3011     my $buildtype = "oldconfig";
3012                                                  3012 
3013     # We should have a minconfig to use?         3013     # We should have a minconfig to use?
3014     if (defined($minconfig)) {                   3014     if (defined($minconfig)) {
3015         $buildtype = "useconfig:$minconfig";     3015         $buildtype = "useconfig:$minconfig";
3016     }                                            3016     }
3017                                                  3017 
3018     # If the user sets bisect_tries to less t    3018     # If the user sets bisect_tries to less than 1, then no tries
3019     # is a success.                              3019     # is a success.
3020     my $ret = 1;                                 3020     my $ret = 1;
3021                                                  3021 
3022     # Still let the user manually decide that    3022     # Still let the user manually decide that though.
3023     if ($bisect_tries < 1 && $bisect_manual)     3023     if ($bisect_tries < 1 && $bisect_manual) {
3024         $ret = answer_bisect;                    3024         $ret = answer_bisect;
3025     }                                            3025     }
3026                                                  3026 
3027     for (my $i = 0; $i < $bisect_tries; $i++)    3027     for (my $i = 0; $i < $bisect_tries; $i++) {
3028         if ($bisect_tries > 1) {                 3028         if ($bisect_tries > 1) {
3029             my $t = $i + 1;                      3029             my $t = $i + 1;
3030             doprint("Running bisect trial $t     3030             doprint("Running bisect trial $t of $bisect_tries:\n");
3031         }                                        3031         }
3032         $ret = run_bisect_test $type, $buildt    3032         $ret = run_bisect_test $type, $buildtype;
3033                                                  3033 
3034         if ($bisect_manual) {                    3034         if ($bisect_manual) {
3035             $ret = answer_bisect;                3035             $ret = answer_bisect;
3036         }                                        3036         }
3037                                                  3037 
3038         last if (!$ret);                         3038         last if (!$ret);
3039     }                                            3039     }
3040                                                  3040 
3041     # Are we looking for where it worked, not    3041     # Are we looking for where it worked, not failed?
3042     if ($reverse_bisect && $ret >= 0) {          3042     if ($reverse_bisect && $ret >= 0) {
3043         $ret = !$ret;                            3043         $ret = !$ret;
3044     }                                            3044     }
3045                                                  3045 
3046     if ($ret > 0) {                              3046     if ($ret > 0) {
3047         return "good";                           3047         return "good";
3048     } elsif ($ret == 0) {                        3048     } elsif ($ret == 0) {
3049         return  "bad";                           3049         return  "bad";
3050     } elsif ($bisect_skip) {                     3050     } elsif ($bisect_skip) {
3051         doprint "HIT A BAD COMMIT ... SKIPPIN    3051         doprint "HIT A BAD COMMIT ... SKIPPING\n";
3052         return "skip";                           3052         return "skip";
3053     }                                            3053     }
3054 }                                                3054 }
3055                                                  3055 
3056 sub update_bisect_replay {                       3056 sub update_bisect_replay {
3057     my $tmp_log = "$tmpdir/ktest_bisect_log";    3057     my $tmp_log = "$tmpdir/ktest_bisect_log";
3058     run_command "git bisect log > $tmp_log" o    3058     run_command "git bisect log > $tmp_log" or
3059         dodie "can't create bisect log";         3059         dodie "can't create bisect log";
3060     return $tmp_log;                             3060     return $tmp_log;
3061 }                                                3061 }
3062                                                  3062 
3063 sub bisect {                                     3063 sub bisect {
3064     my ($i) = @_;                                3064     my ($i) = @_;
3065                                                  3065 
3066     my $result;                                  3066     my $result;
3067                                                  3067 
3068     dodie "BISECT_GOOD[$i] not defined\n"        3068     dodie "BISECT_GOOD[$i] not defined\n"       if (!defined($bisect_good));
3069     dodie "BISECT_BAD[$i] not defined\n"         3069     dodie "BISECT_BAD[$i] not defined\n"        if (!defined($bisect_bad));
3070     dodie "BISECT_TYPE[$i] not defined\n"        3070     dodie "BISECT_TYPE[$i] not defined\n"       if (!defined($bisect_type));
3071                                                  3071 
3072     my $good = $bisect_good;                     3072     my $good = $bisect_good;
3073     my $bad = $bisect_bad;                       3073     my $bad = $bisect_bad;
3074     my $type = $bisect_type;                     3074     my $type = $bisect_type;
3075     my $start = $bisect_start;                   3075     my $start = $bisect_start;
3076     my $replay = $bisect_replay;                 3076     my $replay = $bisect_replay;
3077     my $start_files = $bisect_files;             3077     my $start_files = $bisect_files;
3078                                                  3078 
3079     if (defined($start_files)) {                 3079     if (defined($start_files)) {
3080         $start_files = " -- " . $start_files;    3080         $start_files = " -- " . $start_files;
3081     } else {                                     3081     } else {
3082         $start_files = "";                       3082         $start_files = "";
3083     }                                            3083     }
3084                                                  3084 
3085     # convert to true sha1's                     3085     # convert to true sha1's
3086     $good = get_sha1($good);                     3086     $good = get_sha1($good);
3087     $bad = get_sha1($bad);                       3087     $bad = get_sha1($bad);
3088                                                  3088 
3089     if (defined($bisect_reverse) && $bisect_r    3089     if (defined($bisect_reverse) && $bisect_reverse == 1) {
3090         doprint "Performing a reverse bisect     3090         doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3091         $reverse_bisect = 1;                     3091         $reverse_bisect = 1;
3092     } else {                                     3092     } else {
3093         $reverse_bisect = 0;                     3093         $reverse_bisect = 0;
3094     }                                            3094     }
3095                                                  3095 
3096     # Can't have a test without having a test    3096     # Can't have a test without having a test to run
3097     if ($type eq "test" && !defined($run_test    3097     if ($type eq "test" && !defined($run_test)) {
3098         $type = "boot";                          3098         $type = "boot";
3099     }                                            3099     }
3100                                                  3100 
3101     # Check if a bisect was running              3101     # Check if a bisect was running
3102     my $bisect_start_file = "$builddir/.git/B    3102     my $bisect_start_file = "$builddir/.git/BISECT_START";
3103                                                  3103 
3104     my $check = $bisect_check;                   3104     my $check = $bisect_check;
3105     my $do_check = defined($check) && $check     3105     my $do_check = defined($check) && $check ne "0";
3106                                                  3106 
3107     if ( -f $bisect_start_file ) {               3107     if ( -f $bisect_start_file ) {
3108         print "Bisect in progress found\n";      3108         print "Bisect in progress found\n";
3109         if ($do_check) {                         3109         if ($do_check) {
3110             print " If you say yes, then no c    3110             print " If you say yes, then no checks of good or bad will be done\n";
3111         }                                        3111         }
3112         if (defined($replay)) {                  3112         if (defined($replay)) {
3113             print "** BISECT_REPLAY is define    3113             print "** BISECT_REPLAY is defined in config file **";
3114             print " Ignore config option and     3114             print " Ignore config option and perform new git bisect log?\n";
3115             if (read_ync " (yes, no, or cance    3115             if (read_ync " (yes, no, or cancel) ") {
3116                 $replay = update_bisect_repla    3116                 $replay = update_bisect_replay;
3117                 $do_check = 0;                   3117                 $do_check = 0;
3118             }                                    3118             }
3119         } elsif (read_yn "read git log and co    3119         } elsif (read_yn "read git log and continue?") {
3120             $replay = update_bisect_replay;      3120             $replay = update_bisect_replay;
3121             $do_check = 0;                       3121             $do_check = 0;
3122         }                                        3122         }
3123     }                                            3123     }
3124                                                  3124 
3125     if ($do_check) {                             3125     if ($do_check) {
3126         # get current HEAD                       3126         # get current HEAD
3127         my $head = get_sha1("HEAD");             3127         my $head = get_sha1("HEAD");
3128                                                  3128 
3129         if ($check ne "good") {                  3129         if ($check ne "good") {
3130             doprint "TESTING BISECT BAD [$bad    3130             doprint "TESTING BISECT BAD [$bad]\n";
3131             run_command "git checkout $bad" o    3131             run_command "git checkout $bad" or
3132                 dodie "Failed to checkout $ba    3132                 dodie "Failed to checkout $bad";
3133                                                  3133 
3134             $result = run_bisect $type;          3134             $result = run_bisect $type;
3135                                                  3135 
3136             if ($result ne "bad") {              3136             if ($result ne "bad") {
3137                 fail "Tested BISECT_BAD [$bad    3137                 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3138             }                                    3138             }
3139         }                                        3139         }
3140                                                  3140 
3141         if ($check ne "bad") {                   3141         if ($check ne "bad") {
3142             doprint "TESTING BISECT GOOD [$go    3142             doprint "TESTING BISECT GOOD [$good]\n";
3143             run_command "git checkout $good"     3143             run_command "git checkout $good" or
3144                 dodie "Failed to checkout $go    3144                 dodie "Failed to checkout $good";
3145                                                  3145 
3146             $result = run_bisect $type;          3146             $result = run_bisect $type;
3147                                                  3147 
3148             if ($result ne "good") {             3148             if ($result ne "good") {
3149                 fail "Tested BISECT_GOOD [$go    3149                 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3150             }                                    3150             }
3151         }                                        3151         }
3152                                                  3152 
3153         # checkout where we started              3153         # checkout where we started
3154         run_command "git checkout $head" or      3154         run_command "git checkout $head" or
3155             dodie "Failed to checkout $head";    3155             dodie "Failed to checkout $head";
3156     }                                            3156     }
3157                                                  3157 
3158     run_command "git bisect start$start_files    3158     run_command "git bisect start$start_files" or
3159         dodie "could not start bisect";          3159         dodie "could not start bisect";
3160                                                  3160 
3161     if (defined($replay)) {                      3161     if (defined($replay)) {
3162         run_command "git bisect replay $repla    3162         run_command "git bisect replay $replay" or
3163             dodie "failed to run replay";        3163             dodie "failed to run replay";
3164     } else {                                     3164     } else {
3165         run_command "git bisect good $good" o    3165         run_command "git bisect good $good" or
3166             dodie "could not set bisect good     3166             dodie "could not set bisect good to $good";
3167                                                  3167 
3168         run_git_bisect "git bisect bad $bad"     3168         run_git_bisect "git bisect bad $bad" or
3169             dodie "could not set bisect bad t    3169             dodie "could not set bisect bad to $bad";
3170     }                                            3170     }
3171                                                  3171 
3172     if (defined($start)) {                       3172     if (defined($start)) {
3173         run_command "git checkout $start" or     3173         run_command "git checkout $start" or
3174             dodie "failed to checkout $start"    3174             dodie "failed to checkout $start";
3175     }                                            3175     }
3176                                                  3176 
3177     my $test;                                    3177     my $test;
3178     do {                                         3178     do {
3179         $result = run_bisect $type;              3179         $result = run_bisect $type;
3180         $test = run_git_bisect "git bisect $r    3180         $test = run_git_bisect "git bisect $result";
3181         print_times;                             3181         print_times;
3182     } while ($test);                             3182     } while ($test);
3183                                                  3183 
3184     run_command "git bisect log" or              3184     run_command "git bisect log" or
3185         dodie "could not capture git bisect l    3185         dodie "could not capture git bisect log";
3186                                                  3186 
3187     run_command "git bisect reset" or            3187     run_command "git bisect reset" or
3188         dodie "could not reset git bisect";      3188         dodie "could not reset git bisect";
3189                                                  3189 
3190     doprint "Bad commit was [$bisect_bad_comm    3190     doprint "Bad commit was [$bisect_bad_commit]\n";
3191                                                  3191 
3192     success $i;                                  3192     success $i;
3193 }                                                3193 }
3194                                                  3194 
3195 sub assign_configs {                             3195 sub assign_configs {
3196     my ($hash, $config) = @_;                    3196     my ($hash, $config) = @_;
3197                                                  3197 
3198     doprint "Reading configs from $config\n";    3198     doprint "Reading configs from $config\n";
3199                                                  3199 
3200     open (IN, $config) or                        3200     open (IN, $config) or
3201         dodie "Failed to read $config";          3201         dodie "Failed to read $config";
3202                                                  3202 
3203     while (<IN>) {                               3203     while (<IN>) {
3204         chomp;                                   3204         chomp;
3205         if (/^((CONFIG\S*)=.*)/) {               3205         if (/^((CONFIG\S*)=.*)/) {
3206             ${$hash}{$2} = $1;                   3206             ${$hash}{$2} = $1;
3207         } elsif (/^(# (CONFIG\S*) is not set)    3207         } elsif (/^(# (CONFIG\S*) is not set)/) {
3208             ${$hash}{$2} = $1;                   3208             ${$hash}{$2} = $1;
3209         }                                        3209         }
3210     }                                            3210     }
3211                                                  3211 
3212     close(IN);                                   3212     close(IN);
3213 }                                                3213 }
3214                                                  3214 
3215 sub process_config_ignore {                      3215 sub process_config_ignore {
3216     my ($config) = @_;                           3216     my ($config) = @_;
3217                                                  3217 
3218     assign_configs \%config_ignore, $config;     3218     assign_configs \%config_ignore, $config;
3219 }                                                3219 }
3220                                                  3220 
3221 sub get_dependencies {                           3221 sub get_dependencies {
3222     my ($config) = @_;                           3222     my ($config) = @_;
3223                                                  3223 
3224     my $arr = $dependency{$config};              3224     my $arr = $dependency{$config};
3225     if (!defined($arr)) {                        3225     if (!defined($arr)) {
3226         return ();                               3226         return ();
3227     }                                            3227     }
3228                                                  3228 
3229     my @deps = @{$arr};                          3229     my @deps = @{$arr};
3230                                                  3230 
3231     foreach my $dep (@{$arr}) {                  3231     foreach my $dep (@{$arr}) {
3232         print "ADD DEP $dep\n";                  3232         print "ADD DEP $dep\n";
3233         @deps = (@deps, get_dependencies $dep    3233         @deps = (@deps, get_dependencies $dep);
3234     }                                            3234     }
3235                                                  3235 
3236     return @deps;                                3236     return @deps;
3237 }                                                3237 }
3238                                                  3238 
3239 sub save_config {                                3239 sub save_config {
3240     my ($pc, $file) = @_;                        3240     my ($pc, $file) = @_;
3241                                                  3241 
3242     my %configs = %{$pc};                        3242     my %configs = %{$pc};
3243                                                  3243 
3244     doprint "Saving configs into $file\n";       3244     doprint "Saving configs into $file\n";
3245                                                  3245 
3246     open(OUT, ">$file") or dodie "Can not wri    3246     open(OUT, ">$file") or dodie "Can not write to $file";
3247                                                  3247 
3248     foreach my $config (keys %configs) {         3248     foreach my $config (keys %configs) {
3249         print OUT "$configs{$config}\n";         3249         print OUT "$configs{$config}\n";
3250     }                                            3250     }
3251     close(OUT);                                  3251     close(OUT);
3252 }                                                3252 }
3253                                                  3253 
3254 sub create_config {                              3254 sub create_config {
3255     my ($name, $pc) = @_;                        3255     my ($name, $pc) = @_;
3256                                                  3256 
3257     doprint "Creating old config from $name c    3257     doprint "Creating old config from $name configs\n";
3258                                                  3258 
3259     save_config $pc, $output_config;             3259     save_config $pc, $output_config;
3260                                                  3260 
3261     make_oldconfig;                              3261     make_oldconfig;
3262 }                                                3262 }
3263                                                  3263 
3264 sub run_config_bisect_test {                     3264 sub run_config_bisect_test {
3265     my ($type) = @_;                             3265     my ($type) = @_;
3266                                                  3266 
3267     my $ret = run_bisect_test $type, "oldconf    3267     my $ret = run_bisect_test $type, "oldconfig";
3268                                                  3268 
3269     if ($bisect_manual) {                        3269     if ($bisect_manual) {
3270         $ret = answer_bisect;                    3270         $ret = answer_bisect;
3271     }                                            3271     }
3272                                                  3272 
3273     return $ret;                                 3273     return $ret;
3274 }                                                3274 }
3275                                                  3275 
3276 sub config_bisect_end {                          3276 sub config_bisect_end {
3277     my ($good, $bad) = @_;                       3277     my ($good, $bad) = @_;
3278     my $diffexec = "diff -u";                    3278     my $diffexec = "diff -u";
3279                                                  3279 
3280     if (-f "$builddir/scripts/diffconfig") {     3280     if (-f "$builddir/scripts/diffconfig") {
3281         $diffexec = "$builddir/scripts/diffco    3281         $diffexec = "$builddir/scripts/diffconfig";
3282     }                                            3282     }
3283     doprint "\n\n****************************    3283     doprint "\n\n***************************************\n";
3284     doprint "No more config bisecting possibl    3284     doprint "No more config bisecting possible.\n";
3285     run_command "$diffexec $good $bad", 1;       3285     run_command "$diffexec $good $bad", 1;
3286     doprint "********************************    3286     doprint "***************************************\n\n";
3287 }                                                3287 }
3288                                                  3288 
3289 sub run_config_bisect {                          3289 sub run_config_bisect {
3290     my ($good, $bad, $last_result) = @_;         3290     my ($good, $bad, $last_result) = @_;
3291     my $reset = "";                              3291     my $reset = "";
3292     my $cmd;                                     3292     my $cmd;
3293     my $ret;                                     3293     my $ret;
3294                                                  3294 
3295     if (!length($last_result)) {                 3295     if (!length($last_result)) {
3296         $reset = "-r";                           3296         $reset = "-r";
3297     }                                            3297     }
3298     run_command "$config_bisect_exec $reset -    3298     run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3299                                                  3299 
3300     # config-bisect returns:                     3300     # config-bisect returns:
3301     #   0 if there is more to bisect             3301     #   0 if there is more to bisect
3302     #   1 for finding a good config              3302     #   1 for finding a good config
3303     #   2 if it can not find any more configs    3303     #   2 if it can not find any more configs
3304     #  -1 (255) on error                         3304     #  -1 (255) on error
3305     if ($run_command_status) {                   3305     if ($run_command_status) {
3306         return $run_command_status;              3306         return $run_command_status;
3307     }                                            3307     }
3308                                                  3308 
3309     $ret = run_config_bisect_test $config_bis    3309     $ret = run_config_bisect_test $config_bisect_type;
3310     if ($ret) {                                  3310     if ($ret) {
3311         doprint "NEW GOOD CONFIG ($pass)\n";     3311         doprint "NEW GOOD CONFIG ($pass)\n";
3312         system("cp $output_config $tmpdir/goo    3312         system("cp $output_config $tmpdir/good_config.tmp.$pass");
3313         $pass++;                                 3313         $pass++;
3314         # Return 3 for good config               3314         # Return 3 for good config
3315         return 3;                                3315         return 3;
3316     } else {                                     3316     } else {
3317         doprint "NEW BAD CONFIG ($pass)\n";      3317         doprint "NEW BAD CONFIG ($pass)\n";
3318         system("cp $output_config $tmpdir/bad    3318         system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3319         $pass++;                                 3319         $pass++;
3320         # Return 4 for bad config                3320         # Return 4 for bad config
3321         return 4;                                3321         return 4;
3322     }                                            3322     }
3323 }                                                3323 }
3324                                                  3324 
3325 sub config_bisect {                              3325 sub config_bisect {
3326     my ($i) = @_;                                3326     my ($i) = @_;
3327                                                  3327 
3328     my $good_config;                             3328     my $good_config;
3329     my $bad_config;                              3329     my $bad_config;
3330                                                  3330 
3331     my $type = $config_bisect_type;              3331     my $type = $config_bisect_type;
3332     my $ret;                                     3332     my $ret;
3333                                                  3333 
3334     $bad_config = $config_bisect;                3334     $bad_config = $config_bisect;
3335                                                  3335 
3336     if (defined($config_bisect_good)) {          3336     if (defined($config_bisect_good)) {
3337         $good_config = $config_bisect_good;      3337         $good_config = $config_bisect_good;
3338     } elsif (defined($minconfig)) {              3338     } elsif (defined($minconfig)) {
3339         $good_config = $minconfig;               3339         $good_config = $minconfig;
3340     } else {                                     3340     } else {
3341         doprint "No config specified, checkin    3341         doprint "No config specified, checking if defconfig works";
3342         $ret = run_bisect_test $type, "defcon    3342         $ret = run_bisect_test $type, "defconfig";
3343         if (!$ret) {                             3343         if (!$ret) {
3344             fail "Have no good config to comp    3344             fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3345             return 1;                            3345             return 1;
3346         }                                        3346         }
3347         $good_config = $output_config;           3347         $good_config = $output_config;
3348     }                                            3348     }
3349                                                  3349 
3350     if (!defined($config_bisect_exec)) {         3350     if (!defined($config_bisect_exec)) {
3351         # First check the location that ktest    3351         # First check the location that ktest.pl ran
3352         my @locations = (                        3352         my @locations = (
3353                 "$pwd/config-bisect.pl",         3353                 "$pwd/config-bisect.pl",
3354                 "$dirname/config-bisect.pl",     3354                 "$dirname/config-bisect.pl",
3355                 "$builddir/tools/testing/ktes    3355                 "$builddir/tools/testing/ktest/config-bisect.pl",
3356                 undef );                         3356                 undef );
3357         foreach my $loc (@locations) {           3357         foreach my $loc (@locations) {
3358             doprint "loc = $loc\n";              3358             doprint "loc = $loc\n";
3359             $config_bisect_exec = $loc;          3359             $config_bisect_exec = $loc;
3360             last if (defined($config_bisect_e    3360             last if (defined($config_bisect_exec && -x $config_bisect_exec));
3361         }                                        3361         }
3362         if (!defined($config_bisect_exec)) {     3362         if (!defined($config_bisect_exec)) {
3363             fail "Could not find an executabl    3363             fail "Could not find an executable config-bisect.pl\n",
3364                 "  Set CONFIG_BISECT_EXEC to     3364                 "  Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3365             return 1;                            3365             return 1;
3366         }                                        3366         }
3367     }                                            3367     }
3368                                                  3368 
3369     # we don't want min configs to cause issu    3369     # we don't want min configs to cause issues here.
3370     doprint "Disabling 'MIN_CONFIG' for this     3370     doprint "Disabling 'MIN_CONFIG' for this test\n";
3371     undef $minconfig;                            3371     undef $minconfig;
3372                                                  3372 
3373     my %good_configs;                            3373     my %good_configs;
3374     my %bad_configs;                             3374     my %bad_configs;
3375     my %tmp_configs;                             3375     my %tmp_configs;
3376                                                  3376 
3377     if (-f "$tmpdir/good_config.tmp" || -f "$    3377     if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3378         if (read_yn "Interrupted config-bisec    3378         if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3379             if (-f "$tmpdir/good_config.tmp")    3379             if (-f "$tmpdir/good_config.tmp") {
3380                 $good_config = "$tmpdir/good_    3380                 $good_config = "$tmpdir/good_config.tmp";
3381             } else {                             3381             } else {
3382                 $good_config = "$tmpdir/good_    3382                 $good_config = "$tmpdir/good_config";
3383             }                                    3383             }
3384             if (-f "$tmpdir/bad_config.tmp")     3384             if (-f "$tmpdir/bad_config.tmp") {
3385                 $bad_config = "$tmpdir/bad_co    3385                 $bad_config = "$tmpdir/bad_config.tmp";
3386             } else {                             3386             } else {
3387                 $bad_config = "$tmpdir/bad_co    3387                 $bad_config = "$tmpdir/bad_config";
3388             }                                    3388             }
3389         }                                        3389         }
3390     }                                            3390     }
3391     doprint "Run good configs through make ol    3391     doprint "Run good configs through make oldconfig\n";
3392     assign_configs \%tmp_configs, $good_confi    3392     assign_configs \%tmp_configs, $good_config;
3393     create_config "$good_config", \%tmp_confi    3393     create_config "$good_config", \%tmp_configs;
3394     $good_config = "$tmpdir/good_config";        3394     $good_config = "$tmpdir/good_config";
3395     system("cp $output_config $good_config")     3395     system("cp $output_config $good_config") == 0 or dodie "cp good config";
3396                                                  3396 
3397     doprint "Run bad configs through make old    3397     doprint "Run bad configs through make oldconfig\n";
3398     assign_configs \%tmp_configs, $bad_config    3398     assign_configs \%tmp_configs, $bad_config;
3399     create_config "$bad_config", \%tmp_config    3399     create_config "$bad_config", \%tmp_configs;
3400     $bad_config = "$tmpdir/bad_config";          3400     $bad_config = "$tmpdir/bad_config";
3401     system("cp $output_config $bad_config") =    3401     system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3402                                                  3402 
3403     if (defined($config_bisect_check) && $con    3403     if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3404         if ($config_bisect_check ne "good") {    3404         if ($config_bisect_check ne "good") {
3405             doprint "Testing bad config\n";      3405             doprint "Testing bad config\n";
3406                                                  3406 
3407             $ret = run_bisect_test $type, "us    3407             $ret = run_bisect_test $type, "useconfig:$bad_config";
3408             if ($ret) {                          3408             if ($ret) {
3409                 fail "Bad config succeeded wh    3409                 fail "Bad config succeeded when expected to fail!";
3410                 return 0;                        3410                 return 0;
3411             }                                    3411             }
3412         }                                        3412         }
3413         if ($config_bisect_check ne "bad") {     3413         if ($config_bisect_check ne "bad") {
3414             doprint "Testing good config\n";     3414             doprint "Testing good config\n";
3415                                                  3415 
3416             $ret = run_bisect_test $type, "us    3416             $ret = run_bisect_test $type, "useconfig:$good_config";
3417             if (!$ret) {                         3417             if (!$ret) {
3418                 fail "Good config failed when    3418                 fail "Good config failed when expected to succeed!";
3419                 return 0;                        3419                 return 0;
3420             }                                    3420             }
3421         }                                        3421         }
3422     }                                            3422     }
3423                                                  3423 
3424     my $last_run = "";                           3424     my $last_run = "";
3425                                                  3425 
3426     do {                                         3426     do {
3427         $ret = run_config_bisect $good_config    3427         $ret = run_config_bisect $good_config, $bad_config, $last_run;
3428         if ($ret == 3) {                         3428         if ($ret == 3) {
3429             $last_run = "good";                  3429             $last_run = "good";
3430         } elsif ($ret == 4) {                    3430         } elsif ($ret == 4) {
3431             $last_run = "bad";                   3431             $last_run = "bad";
3432         }                                        3432         }
3433         print_times;                             3433         print_times;
3434     } while ($ret == 3 || $ret == 4);            3434     } while ($ret == 3 || $ret == 4);
3435                                                  3435 
3436     if ($ret == 2) {                             3436     if ($ret == 2) {
3437         config_bisect_end "$good_config.tmp",    3437         config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3438     }                                            3438     }
3439                                                  3439 
3440     return $ret if ($ret < 0);                   3440     return $ret if ($ret < 0);
3441                                                  3441 
3442     success $i;                                  3442     success $i;
3443 }                                                3443 }
3444                                                  3444 
3445 sub patchcheck_reboot {                          3445 sub patchcheck_reboot {
3446     doprint "Reboot and sleep $patchcheck_sle    3446     doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3447     reboot_to_good $patchcheck_sleep_time;       3447     reboot_to_good $patchcheck_sleep_time;
3448 }                                                3448 }
3449                                                  3449 
3450 sub patchcheck {                                 3450 sub patchcheck {
3451     my ($i) = @_;                                3451     my ($i) = @_;
3452                                                  3452 
3453     dodie "PATCHCHECK_START[$i] not defined\n    3453     dodie "PATCHCHECK_START[$i] not defined\n"
3454         if (!defined($patchcheck_start));        3454         if (!defined($patchcheck_start));
3455     dodie "PATCHCHECK_TYPE[$i] not defined\n"    3455     dodie "PATCHCHECK_TYPE[$i] not defined\n"
3456         if (!defined($patchcheck_type));         3456         if (!defined($patchcheck_type));
3457                                                  3457 
3458     my $start = $patchcheck_start;               3458     my $start = $patchcheck_start;
3459                                                  3459 
3460     my $cherry = $patchcheck_cherry;             3460     my $cherry = $patchcheck_cherry;
3461     if (!defined($cherry)) {                     3461     if (!defined($cherry)) {
3462         $cherry = 0;                             3462         $cherry = 0;
3463     }                                            3463     }
3464                                                  3464 
3465     my $end = "HEAD";                            3465     my $end = "HEAD";
3466     if (defined($patchcheck_end)) {              3466     if (defined($patchcheck_end)) {
3467         $end = $patchcheck_end;                  3467         $end = $patchcheck_end;
3468     } elsif ($cherry) {                          3468     } elsif ($cherry) {
3469         dodie "PATCHCHECK_END must be defined    3469         dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3470     }                                            3470     }
3471                                                  3471 
3472     # Get the true sha1's since we can use th    3472     # Get the true sha1's since we can use things like HEAD~3
3473     $start = get_sha1($start);                   3473     $start = get_sha1($start);
3474     $end = get_sha1($end);                       3474     $end = get_sha1($end);
3475                                                  3475 
3476     my $type = $patchcheck_type;                 3476     my $type = $patchcheck_type;
3477                                                  3477 
3478     # Can't have a test without having a test    3478     # Can't have a test without having a test to run
3479     if ($type eq "test" && !defined($run_test    3479     if ($type eq "test" && !defined($run_test)) {
3480         $type = "boot";                          3480         $type = "boot";
3481     }                                            3481     }
3482                                                  3482 
3483     if ($cherry) {                               3483     if ($cherry) {
3484         open (IN, "git cherry -v $start $end|    3484         open (IN, "git cherry -v $start $end|") or
3485             dodie "could not get git list";      3485             dodie "could not get git list";
3486     } else {                                     3486     } else {
3487         open (IN, "git log --pretty=oneline $    3487         open (IN, "git log --pretty=oneline $end|") or
3488             dodie "could not get git list";      3488             dodie "could not get git list";
3489     }                                            3489     }
3490                                                  3490 
3491     my @list;                                    3491     my @list;
3492                                                  3492 
3493     while (<IN>) {                               3493     while (<IN>) {
3494         chomp;                                   3494         chomp;
3495         # git cherry adds a '+' we want to re    3495         # git cherry adds a '+' we want to remove
3496         s/^\+ //;                                3496         s/^\+ //;
3497         $list[$#list+1] = $_;                    3497         $list[$#list+1] = $_;
3498         last if (/^$start/);                     3498         last if (/^$start/);
3499     }                                            3499     }
3500     close(IN);                                   3500     close(IN);
3501                                                  3501 
3502     if (!$cherry) {                              3502     if (!$cherry) {
3503         if ($list[$#list] !~ /^$start/) {        3503         if ($list[$#list] !~ /^$start/) {
3504             fail "SHA1 $start not found";        3504             fail "SHA1 $start not found";
3505         }                                        3505         }
3506                                                  3506 
3507         # go backwards in the list               3507         # go backwards in the list
3508         @list = reverse @list;                   3508         @list = reverse @list;
3509     }                                            3509     }
3510                                                  3510 
3511     doprint("Going to test the following comm    3511     doprint("Going to test the following commits:\n");
3512     foreach my $l (@list) {                      3512     foreach my $l (@list) {
3513         doprint "$l\n";                          3513         doprint "$l\n";
3514     }                                            3514     }
3515                                                  3515 
3516     my $save_clean = $noclean;                   3516     my $save_clean = $noclean;
3517     my %ignored_warnings;                        3517     my %ignored_warnings;
3518                                                  3518 
3519     if (defined($ignore_warnings)) {             3519     if (defined($ignore_warnings)) {
3520         foreach my $sha1 (split /\s+/, $ignor    3520         foreach my $sha1 (split /\s+/, $ignore_warnings) {
3521             $ignored_warnings{$sha1} = 1;        3521             $ignored_warnings{$sha1} = 1;
3522         }                                        3522         }
3523     }                                            3523     }
3524                                                  3524 
3525     $in_patchcheck = 1;                          3525     $in_patchcheck = 1;
3526     foreach my $item (@list) {                   3526     foreach my $item (@list) {
3527         my $sha1 = $item;                        3527         my $sha1 = $item;
3528         $sha1 =~ s/^([[:xdigit:]]+).*/$1/;       3528         $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3529                                                  3529 
3530         doprint "\nProcessing commit \"$item\    3530         doprint "\nProcessing commit \"$item\"\n\n";
3531                                                  3531 
3532         run_command "git checkout $sha1" or      3532         run_command "git checkout $sha1" or
3533             dodie "Failed to checkout $sha1";    3533             dodie "Failed to checkout $sha1";
3534                                                  3534 
3535         # only clean on the first and last pa    3535         # only clean on the first and last patch
3536         if ($item eq $list[0] ||                 3536         if ($item eq $list[0] ||
3537             $item eq $list[$#list]) {            3537             $item eq $list[$#list]) {
3538             $noclean = $save_clean;              3538             $noclean = $save_clean;
3539         } else {                                 3539         } else {
3540             $noclean = 1;                        3540             $noclean = 1;
3541         }                                        3541         }
3542                                                  3542 
3543         if (defined($minconfig)) {               3543         if (defined($minconfig)) {
3544             build "useconfig:$minconfig" or r    3544             build "useconfig:$minconfig" or return 0;
3545         } else {                                 3545         } else {
3546             # ?? no config to use?               3546             # ?? no config to use?
3547             build "oldconfig" or return 0;       3547             build "oldconfig" or return 0;
3548         }                                        3548         }
3549                                                  3549 
3550         # No need to do per patch checking if    3550         # No need to do per patch checking if warnings file exists
3551         if (!defined($warnings_file) && !defi    3551         if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3552             check_patch_buildlog $sha1 or ret    3552             check_patch_buildlog $sha1 or return 0;
3553         }                                        3553         }
3554                                                  3554 
3555         check_buildlog or return 0;              3555         check_buildlog or return 0;
3556                                                  3556 
3557         next if ($type eq "build");              3557         next if ($type eq "build");
3558                                                  3558 
3559         my $failed = 0;                          3559         my $failed = 0;
3560                                                  3560 
3561         start_monitor_and_install or $failed     3561         start_monitor_and_install or $failed = 1;
3562                                                  3562 
3563         if (!$failed && $type ne "boot"){        3563         if (!$failed && $type ne "boot"){
3564             do_run_test or $failed = 1;          3564             do_run_test or $failed = 1;
3565         }                                        3565         }
3566         end_monitor;                             3566         end_monitor;
3567         if ($failed) {                           3567         if ($failed) {
3568             print_times;                         3568             print_times;
3569             return 0;                            3569             return 0;
3570         }                                        3570         }
3571         patchcheck_reboot;                       3571         patchcheck_reboot;
3572         print_times;                             3572         print_times;
3573     }                                            3573     }
3574     $in_patchcheck = 0;                          3574     $in_patchcheck = 0;
3575     success $i;                                  3575     success $i;
3576                                                  3576 
3577     return 1;                                    3577     return 1;
3578 }                                                3578 }
3579                                                  3579 
3580 sub add_dep {                                    3580 sub add_dep {
3581     # $config depends on $dep                    3581     # $config depends on $dep
3582     my ($config, $dep) = @_;                     3582     my ($config, $dep) = @_;
3583                                                  3583 
3584     if (defined($depends{$config})) {            3584     if (defined($depends{$config})) {
3585         $depends{$config} .= " " . $dep;         3585         $depends{$config} .= " " . $dep;
3586     } else {                                     3586     } else {
3587         $depends{$config} = $dep;                3587         $depends{$config} = $dep;
3588     }                                            3588     }
3589                                                  3589 
3590     # record the number of configs depending     3590     # record the number of configs depending on $dep
3591     if (defined $depcount{$dep}) {               3591     if (defined $depcount{$dep}) {
3592         $depcount{$dep}++;                       3592         $depcount{$dep}++;
3593     } else {                                     3593     } else {
3594         $depcount{$dep} = 1;                     3594         $depcount{$dep} = 1;
3595     }                                            3595     } 
3596 }                                                3596 }
3597                                                  3597 
3598 # taken from streamline_config.pl                3598 # taken from streamline_config.pl
3599 sub read_kconfig {                               3599 sub read_kconfig {
3600     my ($kconfig) = @_;                          3600     my ($kconfig) = @_;
3601                                                  3601 
3602     my $state = "NONE";                          3602     my $state = "NONE";
3603     my $config;                                  3603     my $config;
3604     my @kconfigs;                                3604     my @kconfigs;
3605                                                  3605 
3606     my $cont = 0;                                3606     my $cont = 0;
3607     my $line;                                    3607     my $line;
3608                                                  3608 
3609     if (! -f $kconfig) {                         3609     if (! -f $kconfig) {
3610         doprint "file $kconfig does not exist    3610         doprint "file $kconfig does not exist, skipping\n";
3611         return;                                  3611         return;
3612     }                                            3612     }
3613                                                  3613 
3614     open(KIN, "$kconfig")                        3614     open(KIN, "$kconfig")
3615         or dodie "Can't open $kconfig";          3615         or dodie "Can't open $kconfig";
3616     while (<KIN>) {                              3616     while (<KIN>) {
3617         chomp;                                   3617         chomp;
3618                                                  3618 
3619         # Make sure that lines ending with \     3619         # Make sure that lines ending with \ continue
3620         if ($cont) {                             3620         if ($cont) {
3621             $_ = $line . " " . $_;               3621             $_ = $line . " " . $_;
3622         }                                        3622         }
3623                                                  3623 
3624         if (s/\\$//) {                           3624         if (s/\\$//) {
3625             $cont = 1;                           3625             $cont = 1;
3626             $line = $_;                          3626             $line = $_;
3627             next;                                3627             next;
3628         }                                        3628         }
3629                                                  3629 
3630         $cont = 0;                               3630         $cont = 0;
3631                                                  3631 
3632         # collect any Kconfig sources            3632         # collect any Kconfig sources
3633         if (/^source\s*"(.*)"/) {                3633         if (/^source\s*"(.*)"/) {
3634             $kconfigs[$#kconfigs+1] = $1;        3634             $kconfigs[$#kconfigs+1] = $1;
3635         }                                        3635         }
3636                                                  3636 
3637         # configs found                          3637         # configs found
3638         if (/^\s*(menu)?config\s+(\S+)\s*$/)     3638         if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3639             $state = "NEW";                      3639             $state = "NEW";
3640             $config = $2;                        3640             $config = $2;
3641                                                  3641 
3642             for (my $i = 0; $i < $iflevel; $i    3642             for (my $i = 0; $i < $iflevel; $i++) {
3643                 add_dep $config, $ifdeps[$i];    3643                 add_dep $config, $ifdeps[$i];
3644             }                                    3644             }
3645                                                  3645 
3646         # collect the depends for the config     3646         # collect the depends for the config
3647         } elsif ($state eq "NEW" && /^\s*depe    3647         } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3648                                                  3648 
3649             add_dep $config, $1;                 3649             add_dep $config, $1;
3650                                                  3650 
3651         # Get the configs that select this co    3651         # Get the configs that select this config
3652         } elsif ($state eq "NEW" && /^\s*sele    3652         } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3653                                                  3653 
3654             # selected by depends on config      3654             # selected by depends on config
3655             add_dep $1, $config;                 3655             add_dep $1, $config;
3656                                                  3656 
3657         # Check for if statements                3657         # Check for if statements
3658         } elsif (/^if\s+(.*\S)\s*$/) {           3658         } elsif (/^if\s+(.*\S)\s*$/) {
3659             my $deps = $1;                       3659             my $deps = $1;
3660             # remove beginning and ending non    3660             # remove beginning and ending non text
3661             $deps =~ s/^[^a-zA-Z0-9_]*//;        3661             $deps =~ s/^[^a-zA-Z0-9_]*//;
3662             $deps =~ s/[^a-zA-Z0-9_]*$//;        3662             $deps =~ s/[^a-zA-Z0-9_]*$//;
3663                                                  3663 
3664             my @deps = split /[^a-zA-Z0-9_]+/    3664             my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3665                                                  3665 
3666             $ifdeps[$iflevel++] = join ':', @    3666             $ifdeps[$iflevel++] = join ':', @deps;
3667                                                  3667 
3668         } elsif (/^endif/) {                     3668         } elsif (/^endif/) {
3669                                                  3669 
3670             $iflevel-- if ($iflevel);            3670             $iflevel-- if ($iflevel);
3671                                                  3671 
3672         # stop on "help"                         3672         # stop on "help"
3673         } elsif (/^\s*help\s*$/) {               3673         } elsif (/^\s*help\s*$/) {
3674             $state = "NONE";                     3674             $state = "NONE";
3675         }                                        3675         }
3676     }                                            3676     }
3677     close(KIN);                                  3677     close(KIN);
3678                                                  3678 
3679     # read in any configs that were found.       3679     # read in any configs that were found.
3680     foreach $kconfig (@kconfigs) {               3680     foreach $kconfig (@kconfigs) {
3681         if (!defined($read_kconfigs{$kconfig}    3681         if (!defined($read_kconfigs{$kconfig})) {
3682             $read_kconfigs{$kconfig} = 1;        3682             $read_kconfigs{$kconfig} = 1;
3683             read_kconfig("$builddir/$kconfig"    3683             read_kconfig("$builddir/$kconfig");
3684         }                                        3684         }
3685     }                                            3685     }
3686 }                                                3686 }
3687                                                  3687 
3688 sub read_depends {                               3688 sub read_depends {
3689     # find out which arch this is by the kcon    3689     # find out which arch this is by the kconfig file
3690     open (IN, $output_config) or                 3690     open (IN, $output_config) or
3691         dodie "Failed to read $output_config"    3691         dodie "Failed to read $output_config";
3692     my $arch;                                    3692     my $arch;
3693     while (<IN>) {                               3693     while (<IN>) {
3694         if (m,Linux/(\S+)\s+\S+\s+Kernel Conf    3694         if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3695             $arch = $1;                          3695             $arch = $1;
3696             last;                                3696             last;
3697         }                                        3697         }
3698     }                                            3698     }
3699     close IN;                                    3699     close IN;
3700                                                  3700 
3701     if (!defined($arch)) {                       3701     if (!defined($arch)) {
3702         doprint "Could not find arch from con    3702         doprint "Could not find arch from config file\n";
3703         doprint "no dependencies used\n";        3703         doprint "no dependencies used\n";
3704         return;                                  3704         return;
3705     }                                            3705     }
3706                                                  3706 
3707     # arch is really the subarch, we need to     3707     # arch is really the subarch, we need to know
3708     # what directory to look at.                 3708     # what directory to look at.
3709     if ($arch eq "i386" || $arch eq "x86_64")    3709     if ($arch eq "i386" || $arch eq "x86_64") {
3710         $arch = "x86";                           3710         $arch = "x86";
3711     }                                            3711     }
3712                                                  3712 
3713     my $kconfig = "$builddir/arch/$arch/Kconf    3713     my $kconfig = "$builddir/arch/$arch/Kconfig";
3714                                                  3714 
3715     if (! -f $kconfig && $arch =~ /\d$/) {       3715     if (! -f $kconfig && $arch =~ /\d$/) {
3716         my $orig = $arch;                        3716         my $orig = $arch;
3717         # some subarchs have numbers, truncat    3717         # some subarchs have numbers, truncate them
3718         $arch =~ s/\d*$//;                       3718         $arch =~ s/\d*$//;
3719         $kconfig = "$builddir/arch/$arch/Kcon    3719         $kconfig = "$builddir/arch/$arch/Kconfig";
3720         if (! -f $kconfig) {                     3720         if (! -f $kconfig) {
3721             doprint "No idea what arch dir $o    3721             doprint "No idea what arch dir $orig is for\n";
3722             doprint "no dependencies used\n";    3722             doprint "no dependencies used\n";
3723             return;                              3723             return;
3724         }                                        3724         }
3725     }                                            3725     }
3726                                                  3726 
3727     read_kconfig($kconfig);                      3727     read_kconfig($kconfig);
3728 }                                                3728 }
3729                                                  3729 
3730 sub make_new_config {                            3730 sub make_new_config {
3731     my @configs = @_;                            3731     my @configs = @_;
3732                                                  3732 
3733     open (OUT, ">$output_config")                3733     open (OUT, ">$output_config")
3734         or dodie "Failed to write $output_con    3734         or dodie "Failed to write $output_config";
3735                                                  3735 
3736     foreach my $config (@configs) {              3736     foreach my $config (@configs) {
3737         print OUT "$config\n";                   3737         print OUT "$config\n";
3738     }                                            3738     }
3739     close OUT;                                   3739     close OUT;
3740 }                                                3740 }
3741                                                  3741 
3742 sub chomp_config {                               3742 sub chomp_config {
3743     my ($config) = @_;                           3743     my ($config) = @_;
3744                                                  3744 
3745     $config =~ s/CONFIG_//;                      3745     $config =~ s/CONFIG_//;
3746                                                  3746 
3747     return $config;                              3747     return $config;
3748 }                                                3748 }
3749                                                  3749 
3750 sub get_depends {                                3750 sub get_depends {
3751     my ($dep) = @_;                              3751     my ($dep) = @_;
3752                                                  3752 
3753     my $kconfig = chomp_config $dep;             3753     my $kconfig = chomp_config $dep;
3754                                                  3754 
3755     $dep = $depends{"$kconfig"};                 3755     $dep = $depends{"$kconfig"};
3756                                                  3756 
3757     # the dep string we have saves the depend    3757     # the dep string we have saves the dependencies as they
3758     # were found, including expressions like     3758     # were found, including expressions like ! && ||. We
3759     # want to split this out into just an arr    3759     # want to split this out into just an array of configs.
3760                                                  3760 
3761     my $valid = "A-Za-z_0-9";                    3761     my $valid = "A-Za-z_0-9";
3762                                                  3762 
3763     my @configs;                                 3763     my @configs;
3764                                                  3764 
3765     while ($dep =~ /[$valid]/) {                 3765     while ($dep =~ /[$valid]/) {
3766         if ($dep =~ /^[^$valid]*([$valid]+)/)    3766         if ($dep =~ /^[^$valid]*([$valid]+)/) {
3767             my $conf = "CONFIG_" . $1;           3767             my $conf = "CONFIG_" . $1;
3768                                                  3768 
3769             $configs[$#configs + 1] = $conf;     3769             $configs[$#configs + 1] = $conf;
3770                                                  3770 
3771             $dep =~ s/^[^$valid]*[$valid]+//;    3771             $dep =~ s/^[^$valid]*[$valid]+//;
3772         } else {                                 3772         } else {
3773             dodie "this should never happen";    3773             dodie "this should never happen";
3774         }                                        3774         }
3775     }                                            3775     }
3776                                                  3776 
3777     return @configs;                             3777     return @configs;
3778 }                                                3778 }
3779                                                  3779 
3780 sub test_this_config {                           3780 sub test_this_config {
3781     my ($config) = @_;                           3781     my ($config) = @_;
3782                                                  3782 
3783     my $found;                                   3783     my $found;
3784                                                  3784 
3785     # if we already processed this config, sk    3785     # if we already processed this config, skip it
3786     if (defined($processed_configs{$config}))    3786     if (defined($processed_configs{$config})) {
3787         return undef;                            3787         return undef;
3788     }                                            3788     }
3789     $processed_configs{$config} = 1;             3789     $processed_configs{$config} = 1;
3790                                                  3790 
3791     # if this config failed during this round    3791     # if this config failed during this round, skip it
3792     if (defined($nochange_config{$config})) {    3792     if (defined($nochange_config{$config})) {
3793         return undef;                            3793         return undef;
3794     }                                            3794     }
3795                                                  3795 
3796     my $kconfig = chomp_config $config;          3796     my $kconfig = chomp_config $config;
3797                                                  3797 
3798     # Test dependencies first                    3798     # Test dependencies first
3799     if (defined($depends{"$kconfig"})) {         3799     if (defined($depends{"$kconfig"})) {
3800         my @parents = get_depends $config;       3800         my @parents = get_depends $config;
3801         foreach my $parent (@parents) {          3801         foreach my $parent (@parents) {
3802             # if the parent is in the min con    3802             # if the parent is in the min config, check it first
3803             next if (!defined($min_configs{$p    3803             next if (!defined($min_configs{$parent}));
3804             $found = test_this_config($parent    3804             $found = test_this_config($parent);
3805             if (defined($found)) {               3805             if (defined($found)) {
3806                 return $found;                   3806                 return $found;
3807             }                                    3807             }
3808         }                                        3808         }
3809     }                                            3809     }
3810                                                  3810 
3811     # Remove this config from the list of con    3811     # Remove this config from the list of configs
3812     # do a make olddefconfig and then read th    3812     # do a make olddefconfig and then read the resulting
3813     # .config to make sure it is missing the     3813     # .config to make sure it is missing the config that
3814     # we had before                              3814     # we had before
3815     my %configs = %min_configs;                  3815     my %configs = %min_configs;
3816     $configs{$config} = "# $config is not set    3816     $configs{$config} = "# $config is not set";
3817     make_new_config ((values %configs), (valu    3817     make_new_config ((values %configs), (values %keep_configs));
3818     make_oldconfig;                              3818     make_oldconfig;
3819     delete $configs{$config};                    3819     delete $configs{$config};
3820     undef %configs;                              3820     undef %configs;
3821     assign_configs \%configs, $output_config;    3821     assign_configs \%configs, $output_config;
3822                                                  3822 
3823     if (!defined($configs{$config}) || $confi    3823     if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3824         return $config;                          3824         return $config;
3825     }                                            3825     }
3826                                                  3826 
3827     doprint "disabling config $config did not    3827     doprint "disabling config $config did not change .config\n";
3828                                                  3828 
3829     $nochange_config{$config} = 1;               3829     $nochange_config{$config} = 1;
3830                                                  3830 
3831     return undef;                                3831     return undef;
3832 }                                                3832 }
3833                                                  3833 
3834 sub make_min_config {                            3834 sub make_min_config {
3835     my ($i) = @_;                                3835     my ($i) = @_;
3836                                                  3836 
3837     my $type = $minconfig_type;                  3837     my $type = $minconfig_type;
3838     if ($type ne "boot" && $type ne "test") {    3838     if ($type ne "boot" && $type ne "test") {
3839         fail "Invalid MIN_CONFIG_TYPE '$minco    3839         fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3840             " make_min_config works only with    3840             " make_min_config works only with 'boot' and 'test'\n" and return;
3841     }                                            3841     }
3842                                                  3842 
3843     if (!defined($output_minconfig)) {           3843     if (!defined($output_minconfig)) {
3844         fail "OUTPUT_MIN_CONFIG not defined"     3844         fail "OUTPUT_MIN_CONFIG not defined" and return;
3845     }                                            3845     }
3846                                                  3846 
3847     # If output_minconfig exists, and the sta    3847     # If output_minconfig exists, and the start_minconfig
3848     # came from min_config, than ask if we sh    3848     # came from min_config, than ask if we should use
3849     # that instead.                              3849     # that instead.
3850     if (-f $output_minconfig && !$start_minco    3850     if (-f $output_minconfig && !$start_minconfig_defined) {
3851         print "$output_minconfig exists\n";      3851         print "$output_minconfig exists\n";
3852         if (!defined($use_output_minconfig))     3852         if (!defined($use_output_minconfig)) {
3853             if (read_yn " Use it as minconfig    3853             if (read_yn " Use it as minconfig?") {
3854                 $start_minconfig = $output_mi    3854                 $start_minconfig = $output_minconfig;
3855             }                                    3855             }
3856         } elsif ($use_output_minconfig > 0) {    3856         } elsif ($use_output_minconfig > 0) {
3857             doprint "Using $output_minconfig     3857             doprint "Using $output_minconfig as MIN_CONFIG\n";
3858             $start_minconfig = $output_mincon    3858             $start_minconfig = $output_minconfig;
3859         } else {                                 3859         } else {
3860             doprint "Set to still use MIN_CON    3860             doprint "Set to still use MIN_CONFIG as starting point\n";
3861         }                                        3861         }
3862     }                                            3862     }
3863                                                  3863 
3864     if (!defined($start_minconfig)) {            3864     if (!defined($start_minconfig)) {
3865         fail "START_MIN_CONFIG or MIN_CONFIG     3865         fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3866     }                                            3866     }
3867                                                  3867 
3868     my $temp_config = "$tmpdir/temp_config";     3868     my $temp_config = "$tmpdir/temp_config";
3869                                                  3869 
3870     # First things first. We build an allnoco    3870     # First things first. We build an allnoconfig to find
3871     # out what the defaults are that we can't    3871     # out what the defaults are that we can't touch.
3872     # Some are selections, but we really can'    3872     # Some are selections, but we really can't handle selections.
3873                                                  3873 
3874     my $save_minconfig = $minconfig;             3874     my $save_minconfig = $minconfig;
3875     undef $minconfig;                            3875     undef $minconfig;
3876                                                  3876 
3877     run_command "$make allnoconfig" or return    3877     run_command "$make allnoconfig" or return 0;
3878                                                  3878 
3879     read_depends;                                3879     read_depends;
3880                                                  3880 
3881     process_config_ignore $output_config;        3881     process_config_ignore $output_config;
3882                                                  3882 
3883     undef %save_configs;                         3883     undef %save_configs;
3884     undef %min_configs;                          3884     undef %min_configs;
3885                                                  3885 
3886     if (defined($ignore_config)) {               3886     if (defined($ignore_config)) {
3887         # make sure the file exists              3887         # make sure the file exists
3888         `touch $ignore_config`;                  3888         `touch $ignore_config`;
3889         assign_configs \%save_configs, $ignor    3889         assign_configs \%save_configs, $ignore_config;
3890     }                                            3890     }
3891                                                  3891 
3892     %keep_configs = %save_configs;               3892     %keep_configs = %save_configs;
3893                                                  3893 
3894     doprint "Load initial configs from $start    3894     doprint "Load initial configs from $start_minconfig\n";
3895                                                  3895 
3896     # Look at the current min configs, and sa    3896     # Look at the current min configs, and save off all the
3897     # ones that were set via the allnoconfig     3897     # ones that were set via the allnoconfig
3898     assign_configs \%min_configs, $start_minc    3898     assign_configs \%min_configs, $start_minconfig;
3899                                                  3899 
3900     my @config_keys = keys %min_configs;         3900     my @config_keys = keys %min_configs;
3901                                                  3901 
3902     # All configs need a depcount                3902     # All configs need a depcount
3903     foreach my $config (@config_keys) {          3903     foreach my $config (@config_keys) {
3904         my $kconfig = chomp_config $config;      3904         my $kconfig = chomp_config $config;
3905         if (!defined $depcount{$kconfig}) {      3905         if (!defined $depcount{$kconfig}) {
3906             $depcount{$kconfig} = 0;             3906             $depcount{$kconfig} = 0;
3907         }                                        3907         }
3908     }                                            3908     }
3909                                                  3909 
3910     # Remove anything that was set by the mak    3910     # Remove anything that was set by the make allnoconfig
3911     # we shouldn't need them as they get set     3911     # we shouldn't need them as they get set for us anyway.
3912     foreach my $config (@config_keys) {          3912     foreach my $config (@config_keys) {
3913         # Remove anything in the ignore_confi    3913         # Remove anything in the ignore_config
3914         if (defined($keep_configs{$config}))     3914         if (defined($keep_configs{$config})) {
3915             my $file = $ignore_config;           3915             my $file = $ignore_config;
3916             $file =~ s,.*/(.*?)$,$1,;            3916             $file =~ s,.*/(.*?)$,$1,;
3917             doprint "$config set by $file ...    3917             doprint "$config set by $file ... ignored\n";
3918             delete $min_configs{$config};        3918             delete $min_configs{$config};
3919             next;                                3919             next;
3920         }                                        3920         }
3921         # But make sure the settings are the     3921         # But make sure the settings are the same. If a min config
3922         # sets a selection, we do not want to    3922         # sets a selection, we do not want to get rid of it if
3923         # it is not the same as what we have.    3923         # it is not the same as what we have. Just move it into
3924         # the keep configs.                      3924         # the keep configs.
3925         if (defined($config_ignore{$config}))    3925         if (defined($config_ignore{$config})) {
3926             if ($config_ignore{$config} ne $m    3926             if ($config_ignore{$config} ne $min_configs{$config}) {
3927                 doprint "$config is in allnoc    3927                 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3928                 doprint " but it is '$min_con    3928                 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3929                 $keep_configs{$config} = $min    3929                 $keep_configs{$config} = $min_configs{$config};
3930             } else {                             3930             } else {
3931                 doprint "$config set by allno    3931                 doprint "$config set by allnoconfig ... ignored\n";
3932             }                                    3932             }
3933             delete $min_configs{$config};        3933             delete $min_configs{$config};
3934         }                                        3934         }
3935     }                                            3935     }
3936                                                  3936 
3937     my $done = 0;                                3937     my $done = 0;
3938     my $take_two = 0;                            3938     my $take_two = 0;
3939                                                  3939 
3940     while (!$done) {                             3940     while (!$done) {
3941         my $config;                              3941         my $config;
3942         my $found;                               3942         my $found;
3943                                                  3943 
3944         # Now disable each config one by one     3944         # Now disable each config one by one and do a make oldconfig
3945         # till we find a config that changes     3945         # till we find a config that changes our list.
3946                                                  3946 
3947         my @test_configs = keys %min_configs;    3947         my @test_configs = keys %min_configs;
3948                                                  3948 
3949         # Sort keys by who is most dependent     3949         # Sort keys by who is most dependent on
3950         @test_configs = sort  { $depcount{cho    3950         @test_configs = sort  { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3951             @test_configs ;                      3951             @test_configs ;
3952                                                  3952 
3953         # Put configs that did not modify the    3953         # Put configs that did not modify the config at the end.
3954         my $reset = 1;                           3954         my $reset = 1;
3955         for (my $i = 0; $i < $#test_configs;     3955         for (my $i = 0; $i < $#test_configs; $i++) {
3956             if (!defined($nochange_config{$te    3956             if (!defined($nochange_config{$test_configs[0]})) {
3957                 $reset = 0;                      3957                 $reset = 0;
3958                 last;                            3958                 last;
3959             }                                    3959             }
3960             # This config didn't change the .    3960             # This config didn't change the .config last time.
3961             # Place it at the end                3961             # Place it at the end
3962             my $config = shift @test_configs;    3962             my $config = shift @test_configs;
3963             push @test_configs, $config;         3963             push @test_configs, $config;
3964         }                                        3964         }
3965                                                  3965 
3966         # if every test config has failed to     3966         # if every test config has failed to modify the .config file
3967         # in the past, then reset and start o    3967         # in the past, then reset and start over.
3968         if ($reset) {                            3968         if ($reset) {
3969             undef %nochange_config;              3969             undef %nochange_config;
3970         }                                        3970         }
3971                                                  3971 
3972         undef %processed_configs;                3972         undef %processed_configs;
3973                                                  3973 
3974         foreach my $config (@test_configs) {     3974         foreach my $config (@test_configs) {
3975                                                  3975 
3976             $found = test_this_config $config    3976             $found = test_this_config $config;
3977                                                  3977 
3978             last if (defined($found));           3978             last if (defined($found));
3979                                                  3979 
3980             # oh well, try another config        3980             # oh well, try another config
3981         }                                        3981         }
3982                                                  3982 
3983         if (!defined($found)) {                  3983         if (!defined($found)) {
3984             # we could have failed due to the    3984             # we could have failed due to the nochange_config hash
3985             # reset and try again                3985             # reset and try again
3986             if (!$take_two) {                    3986             if (!$take_two) {
3987                 undef %nochange_config;          3987                 undef %nochange_config;
3988                 $take_two = 1;                   3988                 $take_two = 1;
3989                 next;                            3989                 next;
3990             }                                    3990             }
3991             doprint "No more configs found th    3991             doprint "No more configs found that we can disable\n";
3992             $done = 1;                           3992             $done = 1;
3993             last;                                3993             last;
3994         }                                        3994         }
3995         $take_two = 0;                           3995         $take_two = 0;
3996                                                  3996 
3997         $config = $found;                        3997         $config = $found;
3998                                                  3998 
3999         doprint "Test with $config disabled\n    3999         doprint "Test with $config disabled\n";
4000                                                  4000 
4001         # set in_bisect to keep build and mon    4001         # set in_bisect to keep build and monitor from dieing
4002         $in_bisect = 1;                          4002         $in_bisect = 1;
4003                                                  4003 
4004         my $failed = 0;                          4004         my $failed = 0;
4005         build "oldconfig" or $failed = 1;        4005         build "oldconfig" or $failed = 1;
4006         if (!$failed) {                          4006         if (!$failed) {
4007             start_monitor_and_install or $fai    4007             start_monitor_and_install or $failed = 1;
4008                                                  4008 
4009             if ($type eq "test" && !$failed)     4009             if ($type eq "test" && !$failed) {
4010                 do_run_test or $failed = 1;      4010                 do_run_test or $failed = 1;
4011             }                                    4011             }
4012                                                  4012 
4013             end_monitor;                         4013             end_monitor;
4014         }                                        4014         }
4015                                                  4015 
4016         $in_bisect = 0;                          4016         $in_bisect = 0;
4017                                                  4017 
4018         if ($failed) {                           4018         if ($failed) {
4019             doprint "$min_configs{$config} is    4019             doprint "$min_configs{$config} is needed to boot the box... keeping\n";
4020             # this config is needed, add it t    4020             # this config is needed, add it to the ignore list.
4021             $keep_configs{$config} = $min_con    4021             $keep_configs{$config} = $min_configs{$config};
4022             $save_configs{$config} = $min_con    4022             $save_configs{$config} = $min_configs{$config};
4023             delete $min_configs{$config};        4023             delete $min_configs{$config};
4024                                                  4024 
4025             # update new ignore configs          4025             # update new ignore configs
4026             if (defined($ignore_config)) {       4026             if (defined($ignore_config)) {
4027                 open (OUT, ">$temp_config") o    4027                 open (OUT, ">$temp_config") or
4028                     dodie "Can't write to $te    4028                     dodie "Can't write to $temp_config";
4029                 foreach my $config (keys %sav    4029                 foreach my $config (keys %save_configs) {
4030                     print OUT "$save_configs{    4030                     print OUT "$save_configs{$config}\n";
4031                 }                                4031                 }
4032                 close OUT;                       4032                 close OUT;
4033                 run_command "mv $temp_config     4033                 run_command "mv $temp_config $ignore_config" or
4034                     dodie "failed to copy upd    4034                     dodie "failed to copy update to $ignore_config";
4035             }                                    4035             }
4036                                                  4036 
4037         } else {                                 4037         } else {
4038             # We booted without this config,     4038             # We booted without this config, remove it from the minconfigs.
4039             doprint "$config is not needed, d    4039             doprint "$config is not needed, disabling\n";
4040                                                  4040 
4041             delete $min_configs{$config};        4041             delete $min_configs{$config};
4042                                                  4042 
4043             # Also disable anything that is n    4043             # Also disable anything that is not enabled in this config
4044             my %configs;                         4044             my %configs;
4045             assign_configs \%configs, $output    4045             assign_configs \%configs, $output_config;
4046             my @config_keys = keys %min_confi    4046             my @config_keys = keys %min_configs;
4047             foreach my $config (@config_keys)    4047             foreach my $config (@config_keys) {
4048                 if (!defined($configs{$config    4048                 if (!defined($configs{$config})) {
4049                     doprint "$config is not s    4049                     doprint "$config is not set, disabling\n";
4050                     delete $min_configs{$conf    4050                     delete $min_configs{$config};
4051                 }                                4051                 }
4052             }                                    4052             }
4053                                                  4053 
4054             # Save off all the current mandat    4054             # Save off all the current mandatory configs
4055             open (OUT, ">$temp_config") or       4055             open (OUT, ">$temp_config") or
4056                 dodie "Can't write to $temp_c    4056                 dodie "Can't write to $temp_config";
4057             foreach my $config (keys %keep_co    4057             foreach my $config (keys %keep_configs) {
4058                 print OUT "$keep_configs{$con    4058                 print OUT "$keep_configs{$config}\n";
4059             }                                    4059             }
4060             foreach my $config (keys %min_con    4060             foreach my $config (keys %min_configs) {
4061                 print OUT "$min_configs{$conf    4061                 print OUT "$min_configs{$config}\n";
4062             }                                    4062             }
4063             close OUT;                           4063             close OUT;
4064                                                  4064 
4065             run_command "mv $temp_config $out    4065             run_command "mv $temp_config $output_minconfig" or
4066                 dodie "failed to copy update     4066                 dodie "failed to copy update to $output_minconfig";
4067         }                                        4067         }
4068                                                  4068 
4069         doprint "Reboot and wait $sleep_time     4069         doprint "Reboot and wait $sleep_time seconds\n";
4070         reboot_to_good $sleep_time;              4070         reboot_to_good $sleep_time;
4071     }                                            4071     }
4072                                                  4072 
4073     success $i;                                  4073     success $i;
4074     return 1;                                    4074     return 1;
4075 }                                                4075 }
4076                                                  4076 
4077 sub make_warnings_file {                         4077 sub make_warnings_file {
4078     my ($i) = @_;                                4078     my ($i) = @_;
4079                                                  4079 
4080     if (!defined($warnings_file)) {              4080     if (!defined($warnings_file)) {
4081         dodie "Must define WARNINGS_FILE for     4081         dodie "Must define WARNINGS_FILE for make_warnings_file test";
4082     }                                            4082     }
4083                                                  4083 
4084     if ($build_type eq "nobuild") {              4084     if ($build_type eq "nobuild") {
4085         dodie "BUILD_TYPE can not be 'nobuild    4085         dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4086     }                                            4086     }
4087                                                  4087 
4088     build $build_type or dodie "Failed to bui    4088     build $build_type or dodie "Failed to build";
4089                                                  4089 
4090     open(OUT, ">$warnings_file") or dodie "Ca    4090     open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4091                                                  4091 
4092     open(IN, $buildlog) or dodie "Can't open     4092     open(IN, $buildlog) or dodie "Can't open $buildlog";
4093     while (<IN>) {                               4093     while (<IN>) {
4094         # Some compilers use UTF-8 extended f    4094         # Some compilers use UTF-8 extended for quotes
4095         # for distcc heterogeneous systems, t    4095         # for distcc heterogeneous systems, this causes issues
4096         s/$utf8_quote/'/g;                       4096         s/$utf8_quote/'/g;
4097                                                  4097 
4098         if (/$check_build_re/) {                 4098         if (/$check_build_re/) {
4099             print OUT;                           4099             print OUT;
4100         }                                        4100         }
4101     }                                            4101     }
4102     close(IN);                                   4102     close(IN);
4103                                                  4103 
4104     close(OUT);                                  4104     close(OUT);
4105                                                  4105 
4106     success $i;                                  4106     success $i;
4107 }                                                4107 }
4108                                                  4108 
4109 sub option_defined {                             4109 sub option_defined {
4110     my ($option) = @_;                           4110     my ($option) = @_;
4111                                                  4111 
4112     if (defined($opt{$option}) && $opt{$optio    4112     if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4113         return 1;                                4113         return 1;
4114     }                                            4114     }
4115                                                  4115 
4116     return 0;                                    4116     return 0;
4117 }                                                4117 }
4118                                                  4118 
4119 sub __set_test_option {                          4119 sub __set_test_option {
4120     my ($name, $i) = @_;                         4120     my ($name, $i) = @_;
4121                                                  4121 
4122     my $option = "$name\[$i\]";                  4122     my $option = "$name\[$i\]";
4123                                                  4123 
4124     if (option_defined($option)) {               4124     if (option_defined($option)) {
4125         return $opt{$option};                    4125         return $opt{$option};
4126     }                                            4126     }
4127                                                  4127 
4128     foreach my $test (keys %repeat_tests) {      4128     foreach my $test (keys %repeat_tests) {
4129         if ($i >= $test &&                       4129         if ($i >= $test &&
4130             $i < $test + $repeat_tests{$test}    4130             $i < $test + $repeat_tests{$test}) {
4131             $option = "$name\[$test\]";          4131             $option = "$name\[$test\]";
4132             if (option_defined($option)) {       4132             if (option_defined($option)) {
4133                 return $opt{$option};            4133                 return $opt{$option};
4134             }                                    4134             }
4135         }                                        4135         }
4136     }                                            4136     }
4137                                                  4137 
4138     if (option_defined($name)) {                 4138     if (option_defined($name)) {
4139         return $opt{$name};                      4139         return $opt{$name};
4140     }                                            4140     }
4141                                                  4141 
4142     return undef;                                4142     return undef;
4143 }                                                4143 }
4144                                                  4144 
4145 sub set_test_option {                            4145 sub set_test_option {
4146     my ($name, $i) = @_;                         4146     my ($name, $i) = @_;
4147                                                  4147 
4148     my $option = __set_test_option($name, $i)    4148     my $option = __set_test_option($name, $i);
4149     return $option if (!defined($option));       4149     return $option if (!defined($option));
4150                                                  4150 
4151     return eval_option($name, $option, $i);      4151     return eval_option($name, $option, $i);
4152 }                                                4152 }
4153                                                  4153 
4154 sub find_mailer {                                4154 sub find_mailer {
4155     my ($mailer) = @_;                           4155     my ($mailer) = @_;
4156                                                  4156 
4157     my @paths = split /:/, $ENV{PATH};           4157     my @paths = split /:/, $ENV{PATH};
4158                                                  4158 
4159     # sendmail is usually in /usr/sbin           4159     # sendmail is usually in /usr/sbin
4160     $paths[$#paths + 1] = "/usr/sbin";           4160     $paths[$#paths + 1] = "/usr/sbin";
4161                                                  4161 
4162     foreach my $path (@paths) {                  4162     foreach my $path (@paths) {
4163         if (-x "$path/$mailer") {                4163         if (-x "$path/$mailer") {
4164             return $path;                        4164             return $path;
4165         }                                        4165         }
4166     }                                            4166     }
4167                                                  4167 
4168     return undef;                                4168     return undef;
4169 }                                                4169 }
4170                                                  4170 
4171 sub do_send_mail {                               4171 sub do_send_mail {
4172     my ($subject, $message, $file) = @_;         4172     my ($subject, $message, $file) = @_;
4173                                                  4173 
4174     if (!defined($mail_path)) {                  4174     if (!defined($mail_path)) {
4175         # find the mailer                        4175         # find the mailer
4176         $mail_path = find_mailer $mailer;        4176         $mail_path = find_mailer $mailer;
4177         if (!defined($mail_path)) {              4177         if (!defined($mail_path)) {
4178             die "\nCan not find $mailer in PA    4178             die "\nCan not find $mailer in PATH\n";
4179         }                                        4179         }
4180     }                                            4180     }
4181                                                  4181 
4182     my $header_file = "$tmpdir/header";          4182     my $header_file = "$tmpdir/header";
4183     open (HEAD, ">$header_file") or die "Can     4183     open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4184     print HEAD "To: $mailto\n";                  4184     print HEAD "To: $mailto\n";
4185     print HEAD "Subject: $subject\n\n";          4185     print HEAD "Subject: $subject\n\n";
4186     print HEAD "$message\n";                     4186     print HEAD "$message\n";
4187     close HEAD;                                  4187     close HEAD;
4188                                                  4188 
4189     if (!defined($mail_command)) {               4189     if (!defined($mail_command)) {
4190         if ($mailer eq "mail" || $mailer eq "    4190         if ($mailer eq "mail" || $mailer eq "mailx") {
4191             $mail_command = "cat \$HEADER_FIL    4191             $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4192         } elsif ($mailer eq "sendmail" ) {       4192         } elsif ($mailer eq "sendmail" ) {
4193             $mail_command =  "cat \$HEADER_FI    4193             $mail_command =  "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4194         } else {                                 4194         } else {
4195             die "\nYour mailer: $mailer is no    4195             die "\nYour mailer: $mailer is not supported.\n";
4196         }                                        4196         }
4197     }                                            4197     }
4198                                                  4198 
4199     if (defined($file)) {                        4199     if (defined($file)) {
4200         $mail_command =~ s/\$BODY_FILE/$file/    4200         $mail_command =~ s/\$BODY_FILE/$file/g;
4201     } else {                                     4201     } else {
4202         $mail_command =~ s/\$BODY_FILE//g;       4202         $mail_command =~ s/\$BODY_FILE//g;
4203     }                                            4203     }
4204                                                  4204 
4205     $mail_command =~ s/\$HEADER_FILE/$header_    4205     $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4206     $mail_command =~ s/\$MAILER/$mailer/g;       4206     $mail_command =~ s/\$MAILER/$mailer/g;
4207     $mail_command =~ s/\$MAIL_PATH/$mail_path    4207     $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4208     $mail_command =~ s/\$MAILTO/$mailto/g;       4208     $mail_command =~ s/\$MAILTO/$mailto/g;
4209     $mail_command =~ s/\$SUBJECT/$subject/g;     4209     $mail_command =~ s/\$SUBJECT/$subject/g;
4210     $mail_command =~ s/\$MESSAGE/$message/g;     4210     $mail_command =~ s/\$MESSAGE/$message/g;
4211                                                  4211 
4212     my $ret = run_command $mail_command;         4212     my $ret = run_command $mail_command;
4213     if (!$ret && defined($file)) {               4213     if (!$ret && defined($file)) {
4214         # try again without the file             4214         # try again without the file
4215         $message .= "\n\n*** FAILED TO SEND L    4215         $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4216         do_send_email($subject, $message);       4216         do_send_email($subject, $message);
4217     }                                            4217     }
4218 }                                                4218 }
4219                                                  4219 
4220 sub send_email {                                 4220 sub send_email {
4221     if (defined($mailto)) {                      4221     if (defined($mailto)) {
4222         if (!defined($mailer)) {                 4222         if (!defined($mailer)) {
4223             doprint "No email sent: email or     4223             doprint "No email sent: email or mailer not specified in config.\n";
4224             return;                              4224             return;
4225         }                                        4225         }
4226         do_send_mail @_;                         4226         do_send_mail @_;
4227     }                                            4227     }
4228 }                                                4228 }
4229                                                  4229 
4230 sub cancel_test {                                4230 sub cancel_test {
4231     if ($monitor_cnt) {                          4231     if ($monitor_cnt) {
4232         end_monitor;                             4232         end_monitor;
4233     }                                            4233     }
4234     if ($email_when_canceled) {                  4234     if ($email_when_canceled) {
4235         my $name = get_test_name;                4235         my $name = get_test_name;
4236         send_email("KTEST: Your [$name] test     4236         send_email("KTEST: Your [$name] test was cancelled",
4237             "Your test started at $script_sta    4237             "Your test started at $script_start_time was cancelled: sig int");
4238     }                                            4238     }
4239     die "\nCaught Sig Int, test interrupted:     4239     die "\nCaught Sig Int, test interrupted: $!\n"
4240 }                                                4240 }
4241                                                  4241 
4242 $#ARGV < 1 or die "ktest.pl version: $VERSION    4242 $#ARGV < 1 or die "ktest.pl version: $VERSION\n   usage: ktest.pl [config-file]\n";
4243                                                  4243 
4244 if ($#ARGV == 0) {                               4244 if ($#ARGV == 0) {
4245     $ktest_config = $ARGV[0];                    4245     $ktest_config = $ARGV[0];
4246     if (! -f $ktest_config) {                    4246     if (! -f $ktest_config) {
4247         print "$ktest_config does not exist.\    4247         print "$ktest_config does not exist.\n";
4248         if (!read_yn "Create it?") {             4248         if (!read_yn "Create it?") {
4249             exit 0;                              4249             exit 0;
4250         }                                        4250         }
4251     }                                            4251     }
4252 }                                                4252 }
4253                                                  4253 
4254 if (! -f $ktest_config) {                        4254 if (! -f $ktest_config) {
4255     $newconfig = 1;                              4255     $newconfig = 1;
4256     get_test_case;                               4256     get_test_case;
4257     open(OUT, ">$ktest_config") or die "Can n    4257     open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4258     print OUT << "EOF"                           4258     print OUT << "EOF"
4259 # Generated by ktest.pl                          4259 # Generated by ktest.pl
4260 #                                                4260 #
4261                                                  4261 
4262 # PWD is a ktest.pl variable that will result    4262 # PWD is a ktest.pl variable that will result in the process working
4263 # directory that ktest.pl is executed in.        4263 # directory that ktest.pl is executed in.
4264                                                  4264 
4265 # THIS_DIR is automatically assigned the PWD     4265 # THIS_DIR is automatically assigned the PWD of the path that generated
4266 # the config file. It is best to use this var    4266 # the config file. It is best to use this variable when assigning other
4267 # directory paths within this directory. This    4267 # directory paths within this directory. This allows you to easily
4268 # move the test cases to other locations or t    4268 # move the test cases to other locations or to other machines.
4269 #                                                4269 #
4270 THIS_DIR := $variable{"PWD"}                     4270 THIS_DIR := $variable{"PWD"}
4271                                                  4271 
4272 # Define each test with TEST_START               4272 # Define each test with TEST_START
4273 # The config options below it will override t    4273 # The config options below it will override the defaults
4274 TEST_START                                       4274 TEST_START
4275 TEST_TYPE = $default{"TEST_TYPE"}                4275 TEST_TYPE = $default{"TEST_TYPE"}
4276                                                  4276 
4277 DEFAULTS                                         4277 DEFAULTS
4278 EOF                                              4278 EOF
4279 ;                                                4279 ;
4280     close(OUT);                                  4280     close(OUT);
4281 }                                                4281 }
4282 read_config $ktest_config;                       4282 read_config $ktest_config;
4283                                                  4283 
4284 if (defined($opt{"LOG_FILE"})) {                 4284 if (defined($opt{"LOG_FILE"})) {
4285     $opt{"LOG_FILE"} = eval_option("LOG_FILE"    4285     $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4286 }                                                4286 }
4287                                                  4287 
4288 # Append any configs entered in manually to t    4288 # Append any configs entered in manually to the config file.
4289 my @new_configs = keys %entered_configs;         4289 my @new_configs = keys %entered_configs;
4290 if ($#new_configs >= 0) {                        4290 if ($#new_configs >= 0) {
4291     print "\nAppending entered in configs to     4291     print "\nAppending entered in configs to $ktest_config\n";
4292     open(OUT, ">>$ktest_config") or die "Can     4292     open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4293     foreach my $config (@new_configs) {          4293     foreach my $config (@new_configs) {
4294         print OUT "$config = $entered_configs    4294         print OUT "$config = $entered_configs{$config}\n";
4295         $opt{$config} = process_variables($en    4295         $opt{$config} = process_variables($entered_configs{$config});
4296     }                                            4296     }
4297 }                                                4297 }
4298                                                  4298 
4299 if (defined($opt{"LOG_FILE"})) {                 4299 if (defined($opt{"LOG_FILE"})) {
4300     if ($opt{"CLEAR_LOG"}) {                     4300     if ($opt{"CLEAR_LOG"}) {
4301         unlink $opt{"LOG_FILE"};                 4301         unlink $opt{"LOG_FILE"};
4302     }                                            4302     }
4303     open(LOG, ">> $opt{LOG_FILE}") or die "Ca    4303     open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4304     LOG->autoflush(1);                           4304     LOG->autoflush(1);
4305 }                                                4305 }
4306                                                  4306 
4307 doprint "\n\nSTARTING AUTOMATED TESTS\n\n";      4307 doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4308                                                  4308 
4309 for (my $i = 0, my $repeat = 1; $i <= $opt{"N    4309 for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4310                                                  4310 
4311     if (!$i) {                                   4311     if (!$i) {
4312         doprint "DEFAULT OPTIONS:\n";            4312         doprint "DEFAULT OPTIONS:\n";
4313     } else {                                     4313     } else {
4314         doprint "\nTEST $i OPTIONS";             4314         doprint "\nTEST $i OPTIONS";
4315         if (defined($repeat_tests{$i})) {        4315         if (defined($repeat_tests{$i})) {
4316             $repeat = $repeat_tests{$i};         4316             $repeat = $repeat_tests{$i};
4317             doprint " ITERATE $repeat";          4317             doprint " ITERATE $repeat";
4318         }                                        4318         }
4319         doprint "\n";                            4319         doprint "\n";
4320     }                                            4320     }
4321                                                  4321 
4322     foreach my $option (sort keys %opt) {        4322     foreach my $option (sort keys %opt) {
4323         if ($option =~ /\[(\d+)\]$/) {           4323         if ($option =~ /\[(\d+)\]$/) {
4324             next if ($i != $1);                  4324             next if ($i != $1);
4325         } else {                                 4325         } else {
4326             next if ($i);                        4326             next if ($i);
4327         }                                        4327         }
4328                                                  4328 
4329         doprint "$option = $opt{$option}\n";     4329         doprint "$option = $opt{$option}\n";
4330     }                                            4330     }
4331 }                                                4331 }
4332                                                  4332 
4333 $SIG{INT} = qw(cancel_test);                     4333 $SIG{INT} = qw(cancel_test);
4334                                                  4334 
4335 # First we need to do is the builds              4335 # First we need to do is the builds
4336 for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++    4336 for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4337                                                  4337 
4338     # Do not reboot on failing test options      4338     # Do not reboot on failing test options
4339     $no_reboot = 1;                              4339     $no_reboot = 1;
4340     $reboot_success = 0;                         4340     $reboot_success = 0;
4341                                                  4341 
4342     $have_version = 0;                           4342     $have_version = 0;
4343                                                  4343 
4344     $iteration = $i;                             4344     $iteration = $i;
4345                                                  4345 
4346     $build_time = 0;                             4346     $build_time = 0;
4347     $install_time = 0;                           4347     $install_time = 0;
4348     $reboot_time = 0;                            4348     $reboot_time = 0;
4349     $test_time = 0;                              4349     $test_time = 0;
4350                                                  4350 
4351     undef %force_config;                         4351     undef %force_config;
4352                                                  4352 
4353     my $makecmd = set_test_option("MAKE_CMD",    4353     my $makecmd = set_test_option("MAKE_CMD", $i);
4354                                                  4354 
4355     $outputdir = set_test_option("OUTPUT_DIR"    4355     $outputdir = set_test_option("OUTPUT_DIR", $i);
4356     $builddir = set_test_option("BUILD_DIR",     4356     $builddir = set_test_option("BUILD_DIR", $i);
4357                                                  4357 
4358     chdir $builddir || dodie "can't change di    4358     chdir $builddir || dodie "can't change directory to $builddir";
4359                                                  4359 
4360     if (!-d $outputdir) {                        4360     if (!-d $outputdir) {
4361         mkpath($outputdir) or                    4361         mkpath($outputdir) or
4362             dodie "can't create $outputdir";     4362             dodie "can't create $outputdir";
4363     }                                            4363     }
4364                                                  4364 
4365     $make = "$makecmd O=$outputdir";             4365     $make = "$makecmd O=$outputdir";
4366                                                  4366 
4367     # Load all the options into their mapped     4367     # Load all the options into their mapped variable names
4368     foreach my $opt (keys %option_map) {         4368     foreach my $opt (keys %option_map) {
4369         ${$option_map{$opt}} = set_test_optio    4369         ${$option_map{$opt}} = set_test_option($opt, $i);
4370     }                                            4370     }
4371                                                  4371 
4372     $start_minconfig_defined = 1;                4372     $start_minconfig_defined = 1;
4373                                                  4373 
4374     # The first test may override the PRE_KTE    4374     # The first test may override the PRE_KTEST option
4375     if ($i == 1) {                               4375     if ($i == 1) {
4376         if (defined($pre_ktest)) {               4376         if (defined($pre_ktest)) {
4377             doprint "\n";                        4377             doprint "\n";
4378             run_command $pre_ktest;              4378             run_command $pre_ktest;
4379         }                                        4379         }
4380         if ($email_when_started) {               4380         if ($email_when_started) {
4381             my $name = get_test_name;            4381             my $name = get_test_name;
4382             send_email("KTEST: Your [$name] t    4382             send_email("KTEST: Your [$name] test was started",
4383                 "Your test was started on $sc    4383                 "Your test was started on $script_start_time");
4384         }                                        4384         }
4385     }                                            4385     }
4386                                                  4386 
4387     # Any test can override the POST_KTEST op    4387     # Any test can override the POST_KTEST option
4388     # The last test takes precedence.            4388     # The last test takes precedence.
4389     if (defined($post_ktest)) {                  4389     if (defined($post_ktest)) {
4390         $final_post_ktest = $post_ktest;         4390         $final_post_ktest = $post_ktest;
4391     }                                            4391     }
4392                                                  4392 
4393     if (!defined($start_minconfig)) {            4393     if (!defined($start_minconfig)) {
4394         $start_minconfig_defined = 0;            4394         $start_minconfig_defined = 0;
4395         $start_minconfig = $minconfig;           4395         $start_minconfig = $minconfig;
4396     }                                            4396     }
4397                                                  4397 
4398     if (!-d $tmpdir) {                           4398     if (!-d $tmpdir) {
4399         mkpath($tmpdir) or                       4399         mkpath($tmpdir) or
4400             dodie "can't create $tmpdir";        4400             dodie "can't create $tmpdir";
4401     }                                            4401     }
4402                                                  4402 
4403     $ENV{"SSH_USER"} = $ssh_user;                4403     $ENV{"SSH_USER"} = $ssh_user;
4404     $ENV{"MACHINE"} = $machine;                  4404     $ENV{"MACHINE"} = $machine;
4405                                                  4405 
4406     $buildlog = "$tmpdir/buildlog-$machine";     4406     $buildlog = "$tmpdir/buildlog-$machine";
4407     $testlog = "$tmpdir/testlog-$machine";       4407     $testlog = "$tmpdir/testlog-$machine";
4408     $dmesg = "$tmpdir/dmesg-$machine";           4408     $dmesg = "$tmpdir/dmesg-$machine";
4409     $output_config = "$outputdir/.config";       4409     $output_config = "$outputdir/.config";
4410                                                  4410 
4411     if (!$buildonly) {                           4411     if (!$buildonly) {
4412         $target = "$ssh_user\@$machine";         4412         $target = "$ssh_user\@$machine";
4413         if (($reboot_type eq "grub") or ($reb    4413         if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4414             dodie "GRUB_MENU not defined" if     4414             dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4415         } elsif ($reboot_type eq "grub2") {      4415         } elsif ($reboot_type eq "grub2") {
4416             dodie "GRUB_MENU not defined" if     4416             dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4417             dodie "GRUB_FILE not defined" if     4417             dodie "GRUB_FILE not defined" if (!defined($grub_file));
4418         } elsif ($reboot_type eq "syslinux")     4418         } elsif ($reboot_type eq "syslinux") {
4419             dodie "SYSLINUX_LABEL not defined    4419             dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4420         }                                        4420         }
4421     }                                            4421     }
4422                                                  4422 
4423     my $run_type = $build_type;                  4423     my $run_type = $build_type;
4424     if ($test_type eq "patchcheck") {            4424     if ($test_type eq "patchcheck") {
4425         $run_type = $patchcheck_type;            4425         $run_type = $patchcheck_type;
4426     } elsif ($test_type eq "bisect") {           4426     } elsif ($test_type eq "bisect") {
4427         $run_type = $bisect_type;                4427         $run_type = $bisect_type;
4428     } elsif ($test_type eq "config_bisect") {    4428     } elsif ($test_type eq "config_bisect") {
4429         $run_type = $config_bisect_type;         4429         $run_type = $config_bisect_type;
4430     } elsif ($test_type eq "make_min_config")    4430     } elsif ($test_type eq "make_min_config") {
4431         $run_type = "";                          4431         $run_type = "";
4432     } elsif ($test_type eq "make_warnings_fil    4432     } elsif ($test_type eq "make_warnings_file") {
4433         $run_type = "";                          4433         $run_type = "";
4434     }                                            4434     }
4435                                                  4435 
4436     # mistake in config file?                    4436     # mistake in config file?
4437     if (!defined($run_type)) {                   4437     if (!defined($run_type)) {
4438         $run_type = "ERROR";                     4438         $run_type = "ERROR";
4439     }                                            4439     }
4440                                                  4440 
4441     my $installme = "";                          4441     my $installme = "";
4442     $installme = " no_install" if ($no_instal    4442     $installme = " no_install" if ($no_install);
4443                                                  4443 
4444     my $name = "";                               4444     my $name = "";
4445                                                  4445 
4446     if (defined($test_name)) {                   4446     if (defined($test_name)) {
4447         $name = " ($test_name)";                 4447         $name = " ($test_name)";
4448     }                                            4448     }
4449                                                  4449 
4450     doprint "\n\n";                              4450     doprint "\n\n";
4451                                                  4451 
4452     if (defined($opt{"LOG_FILE"})) {             4452     if (defined($opt{"LOG_FILE"})) {
4453         $test_log_start = tell(LOG);             4453         $test_log_start = tell(LOG);
4454     }                                            4454     }
4455                                                  4455 
4456     doprint "RUNNING TEST $i of $opt{NUM_TEST    4456     doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4457                                                  4457 
4458     if (defined($pre_test)) {                    4458     if (defined($pre_test)) {
4459         my $ret = run_command $pre_test;         4459         my $ret = run_command $pre_test;
4460         if (!$ret && defined($pre_test_die) &    4460         if (!$ret && defined($pre_test_die) &&
4461             $pre_test_die) {                     4461             $pre_test_die) {
4462                 dodie "failed to pre_test\n";    4462                 dodie "failed to pre_test\n";
4463         }                                        4463         }
4464     }                                            4464     }
4465                                                  4465 
4466     unlink $dmesg;                               4466     unlink $dmesg;
4467     unlink $buildlog;                            4467     unlink $buildlog;
4468     unlink $testlog;                             4468     unlink $testlog;
4469                                                  4469 
4470     if (defined($addconfig)) {                   4470     if (defined($addconfig)) {
4471         my $min = $minconfig;                    4471         my $min = $minconfig;
4472         if (!defined($minconfig)) {              4472         if (!defined($minconfig)) {
4473             $min = "";                           4473             $min = "";
4474         }                                        4474         }
4475         run_command "cat $addconfig $min > $t    4475         run_command "cat $addconfig $min > $tmpdir/add_config" or
4476             dodie "Failed to create temp conf    4476             dodie "Failed to create temp config";
4477         $minconfig = "$tmpdir/add_config";       4477         $minconfig = "$tmpdir/add_config";
4478     }                                            4478     }
4479                                                  4479 
4480     if (defined($checkout)) {                    4480     if (defined($checkout)) {
4481         run_command "git checkout $checkout"     4481         run_command "git checkout $checkout" or
4482             dodie "failed to checkout $checko    4482             dodie "failed to checkout $checkout";
4483     }                                            4483     }
4484                                                  4484 
4485     $no_reboot = 0;                              4485     $no_reboot = 0;
4486                                                  4486 
4487     # A test may opt to not reboot the box       4487     # A test may opt to not reboot the box
4488     if ($reboot_on_success) {                    4488     if ($reboot_on_success) {
4489         $reboot_success = 1;                     4489         $reboot_success = 1;
4490     }                                            4490     }
4491                                                  4491 
4492     if ($test_type eq "bisect") {                4492     if ($test_type eq "bisect") {
4493         bisect $i;                               4493         bisect $i;
4494         next;                                    4494         next;
4495     } elsif ($test_type eq "config_bisect") {    4495     } elsif ($test_type eq "config_bisect") {
4496         config_bisect $i;                        4496         config_bisect $i;
4497         next;                                    4497         next;
4498     } elsif ($test_type eq "patchcheck") {       4498     } elsif ($test_type eq "patchcheck") {
4499         patchcheck $i;                           4499         patchcheck $i;
4500         next;                                    4500         next;
4501     } elsif ($test_type eq "make_min_config")    4501     } elsif ($test_type eq "make_min_config") {
4502         make_min_config $i;                      4502         make_min_config $i;
4503         next;                                    4503         next;
4504     } elsif ($test_type eq "make_warnings_fil    4504     } elsif ($test_type eq "make_warnings_file") {
4505         $no_reboot = 1;                          4505         $no_reboot = 1;
4506         make_warnings_file $i;                   4506         make_warnings_file $i;
4507         next;                                    4507         next;
4508     }                                            4508     }
4509                                                  4509 
4510     if ($build_type ne "nobuild") {              4510     if ($build_type ne "nobuild") {
4511         build $build_type or next;               4511         build $build_type or next;
4512         check_buildlog or next;                  4512         check_buildlog or next;
4513     }                                            4513     }
4514                                                  4514 
4515     if ($test_type eq "install") {               4515     if ($test_type eq "install") {
4516         get_version;                             4516         get_version;
4517         install;                                 4517         install;
4518         success $i;                              4518         success $i;
4519         next;                                    4519         next;
4520     }                                            4520     }
4521                                                  4521 
4522     if ($test_type ne "build") {                 4522     if ($test_type ne "build") {
4523         my $failed = 0;                          4523         my $failed = 0;
4524         start_monitor_and_install or $failed     4524         start_monitor_and_install or $failed = 1;
4525                                                  4525 
4526         if (!$failed && $test_type ne "boot"     4526         if (!$failed && $test_type ne "boot" && defined($run_test)) {
4527             do_run_test or $failed = 1;          4527             do_run_test or $failed = 1;
4528         }                                        4528         }
4529         end_monitor;                             4529         end_monitor;
4530         if ($failed) {                           4530         if ($failed) {
4531             print_times;                         4531             print_times;
4532             next;                                4532             next;
4533         }                                        4533         }
4534     }                                            4534     }
4535                                                  4535 
4536     print_times;                                 4536     print_times;
4537                                                  4537 
4538     success $i;                                  4538     success $i;
4539 }                                                4539 }
4540                                                  4540 
4541 if (defined($final_post_ktest)) {                4541 if (defined($final_post_ktest)) {
4542                                                  4542 
4543     my $cp_final_post_ktest = eval_kernel_ver    4543     my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4544     run_command $cp_final_post_ktest;            4544     run_command $cp_final_post_ktest;
4545 }                                                4545 }
4546                                                  4546 
4547 if ($opt{"POWEROFF_ON_SUCCESS"}) {               4547 if ($opt{"POWEROFF_ON_SUCCESS"}) {
4548     halt;                                        4548     halt;
4549 } elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not    4549 } elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4550     reboot_to_good;                              4550     reboot_to_good;
4551 } elsif (defined($switch_to_good)) {             4551 } elsif (defined($switch_to_good)) {
4552     # still need to get to the good kernel       4552     # still need to get to the good kernel
4553     run_command $switch_to_good;                 4553     run_command $switch_to_good;
4554 }                                                4554 }
4555                                                  4555 
4556 doprint "\n    $successes of $opt{NUM_TESTS}     4556 doprint "\n    $successes of $opt{NUM_TESTS} tests were successful\n\n";
4557                                                  4557 
4558 if ($email_when_finished) {                      4558 if ($email_when_finished) {
4559     send_email("KTEST: Your test has finished    4559     send_email("KTEST: Your test has finished!",
4560         "$successes of $opt{NUM_TESTS} tests     4560         "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4561 }                                                4561 }
4562                                                  4562 
4563 if (defined($opt{"LOG_FILE"})) {                 4563 if (defined($opt{"LOG_FILE"})) {
4564     print "\n See $opt{LOG_FILE} for the reco    4564     print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4565     close LOG;                                   4565     close LOG;
4566 }                                                4566 }
4567                                                  4567 
4568 exit 0;                                          4568 exit 0;
4569                                                  4569 
4570 ##                                               4570 ##
4571 # The following are here to standardize tabs/    4571 # The following are here to standardize tabs/spaces/etc across the most likely editors
4572 ###                                              4572 ###
4573                                                  4573 
4574 # Local Variables:                               4574 # Local Variables:
4575 # mode: perl                                     4575 # mode: perl
4576 # End:                                           4576 # End:
4577 # vim: softtabstop=4                             4577 # vim: softtabstop=4
                                                      

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