1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0
3
4 YELLOW='\033[0;33m'
5 NC='\033[0m' # No Color
6
7 declare -a FILES
8 FILES=(
9 "include/uapi/linux/const.h"
10 "include/uapi/drm/drm.h"
11 "include/uapi/drm/i915_drm.h"
12 "include/uapi/linux/bits.h"
13 "include/uapi/linux/fadvise.h"
14 "include/uapi/linux/fscrypt.h"
15 "include/uapi/linux/kcmp.h"
16 "include/uapi/linux/kvm.h"
17 "include/uapi/linux/in.h"
18 "include/uapi/linux/perf_event.h"
19 "include/uapi/linux/seccomp.h"
20 "include/uapi/linux/stat.h"
21 "include/linux/bits.h"
22 "include/vdso/bits.h"
23 "include/linux/const.h"
24 "include/vdso/const.h"
25 "include/vdso/unaligned.h"
26 "include/linux/hash.h"
27 "include/linux/list-sort.h"
28 "include/uapi/linux/hw_breakpoint.h"
29 "arch/x86/include/asm/disabled-features.h"
30 "arch/x86/include/asm/required-features.h"
31 "arch/x86/include/asm/cpufeatures.h"
32 "arch/x86/include/asm/inat_types.h"
33 "arch/x86/include/asm/emulate_prefix.h"
34 "arch/x86/include/asm/msr-index.h"
35 "arch/x86/lib/x86-opcode-map.txt"
36 "arch/x86/tools/gen-insn-attr-x86.awk"
37 "arch/arm/include/uapi/asm/perf_regs.h"
38 "arch/arm64/include/uapi/asm/perf_regs.h"
39 "arch/loongarch/include/uapi/asm/perf_regs.h"
40 "arch/mips/include/uapi/asm/perf_regs.h"
41 "arch/powerpc/include/uapi/asm/perf_regs.h"
42 "arch/s390/include/uapi/asm/perf_regs.h"
43 "arch/x86/include/uapi/asm/perf_regs.h"
44 "arch/x86/include/uapi/asm/kvm.h"
45 "arch/x86/include/uapi/asm/kvm_perf.h"
46 "arch/x86/include/uapi/asm/svm.h"
47 "arch/x86/include/uapi/asm/unistd.h"
48 "arch/x86/include/uapi/asm/vmx.h"
49 "arch/powerpc/include/uapi/asm/kvm.h"
50 "arch/s390/include/uapi/asm/kvm.h"
51 "arch/s390/include/uapi/asm/kvm_perf.h"
52 "arch/s390/include/uapi/asm/sie.h"
53 "arch/arm/include/uapi/asm/kvm.h"
54 "arch/arm64/include/uapi/asm/kvm.h"
55 "arch/arm64/include/uapi/asm/unistd.h"
56 "arch/alpha/include/uapi/asm/errno.h"
57 "arch/mips/include/asm/errno.h"
58 "arch/mips/include/uapi/asm/errno.h"
59 "arch/parisc/include/uapi/asm/errno.h"
60 "arch/powerpc/include/uapi/asm/errno.h"
61 "arch/sparc/include/uapi/asm/errno.h"
62 "arch/x86/include/uapi/asm/errno.h"
63 "include/asm-generic/bitops/arch_hweight.h"
64 "include/asm-generic/bitops/const_hweight.h"
65 "include/asm-generic/bitops/__fls.h"
66 "include/asm-generic/bitops/fls.h"
67 "include/asm-generic/bitops/fls64.h"
68 "include/linux/coresight-pmu.h"
69 "include/uapi/asm-generic/errno.h"
70 "include/uapi/asm-generic/errno-base.h"
71 "include/uapi/asm-generic/ioctls.h"
72 "include/uapi/asm-generic/mman-common.h"
73 "include/uapi/asm-generic/unistd.h"
74 )
75
76 declare -a SYNC_CHECK_FILES
77 SYNC_CHECK_FILES=(
78 "arch/x86/include/asm/inat.h"
79 "arch/x86/include/asm/insn.h"
80 "arch/x86/lib/inat.c"
81 "arch/x86/lib/insn.c"
82 )
83
84 # These copies are under tools/perf/trace/beauty/ as they are not used to in
85 # building object files only by scripts in tools/perf/trace/beauty/ to generate
86 # tables that then gets included in .c files for things like id->string syscall
87 # tables (and the reverse lookup as well: string -> id)
88
89 declare -a BEAUTY_FILES
90 BEAUTY_FILES=(
91 "arch/x86/include/asm/irq_vectors.h"
92 "arch/x86/include/uapi/asm/prctl.h"
93 "include/linux/socket.h"
94 "include/uapi/linux/fcntl.h"
95 "include/uapi/linux/fs.h"
96 "include/uapi/linux/mount.h"
97 "include/uapi/linux/prctl.h"
98 "include/uapi/linux/sched.h"
99 "include/uapi/linux/stat.h"
100 "include/uapi/linux/usbdevice_fs.h"
101 "include/uapi/linux/vhost.h"
102 "include/uapi/sound/asound.h"
103 )
104
105 declare -a FAILURES
106
107 check_2 () {
108 tools_file=$1
109 orig_file=$2
110
111 shift
112 shift
113
114 cmd="diff $* $tools_file $orig_file > /dev/null"
115
116 if [ -f "$orig_file" ] && ! eval "$cmd"
117 then
118 FAILURES+=(
119 "$tools_file $orig_file"
120 )
121 fi
122 }
123
124 check () {
125 file=$1
126
127 shift
128
129 check_2 "tools/$file" "$file" "$@"
130 }
131
132 beauty_check () {
133 file=$1
134
135 shift
136
137 check_2 "tools/perf/trace/beauty/$file" "$file" "$@"
138 }
139
140 check_ignore_some_hunks () {
141 orig_file="$1"
142 tools_file="tools/$orig_file"
143 hunks_to_ignore="tools/perf/check-header_ignore_hunks/$orig_file"
144
145 if [ ! -f "$hunks_to_ignore" ]; then
146 echo "$hunks_to_ignore not found. Skipping $orig_file check."
147 FAILURES+=(
148 "$tools_file $orig_file"
149 )
150 return
151 fi
152
153 cmd="diff -u \"$tools_file\" \"$orig_file\" | grep -vf \"$hunks_to_ignore\" | wc -l | grep -qw 0"
154
155 if [ -f "$orig_file" ] && ! eval "$cmd"
156 then
157 FAILURES+=(
158 "$tools_file $orig_file"
159 )
160 fi
161 }
162
163
164 # Check if we have the kernel headers (tools/perf/../../include), else
165 # we're probably on a detached tarball, so no point in trying to check
166 # differences.
167 if ! [ -d ../../include ]
168 then
169 echo -e "${YELLOW}Warning${NC}: Skipped check-headers due to missing ../../include"
170 exit 0
171 fi
172
173 cd ../..
174
175 # simple diff check
176 for i in "${FILES[@]}"
177 do
178 check "$i" -B
179 done
180
181 for i in "${SYNC_CHECK_FILES[@]}"
182 do
183 check "$i" '-I "^.*\/\*.*__ignore_sync_check__.*\*\/.*$"'
184 done
185
186 # diff with extra ignore lines
187 check arch/x86/lib/memcpy_64.S '-I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>" -I"^SYM_FUNC_START\(_LOCAL\)*(memcpy_\(erms\|orig\))" -I"^#include <linux/cfi_types.h>"'
188 check arch/x86/lib/memset_64.S '-I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>" -I"^SYM_FUNC_START\(_LOCAL\)*(memset_\(erms\|orig\))"'
189 check arch/x86/include/asm/amd-ibs.h '-I "^#include [<\"]\(asm/\)*msr-index.h"'
190 check arch/arm64/include/asm/cputype.h '-I "^#include [<\"]\(asm/\)*sysreg.h"'
191 check include/linux/unaligned.h '-I "^#include <linux/unaligned/packed_struct.h>" -I "^#include <asm/byteorder.h>" -I "^#pragma GCC diagnostic"'
192 check include/uapi/asm-generic/mman.h '-I "^#include <\(uapi/\)*asm-generic/mman-common\(-tools\)*.h>"'
193 check include/uapi/linux/mman.h '-I "^#include <\(uapi/\)*asm/mman.h>"'
194 check include/linux/build_bug.h '-I "^#\(ifndef\|endif\)\( \/\/\)* static_assert$"'
195 check include/linux/ctype.h '-I "isdigit("'
196 check lib/ctype.c '-I "^EXPORT_SYMBOL" -I "^#include <linux/export.h>" -B'
197
198 # diff non-symmetric files
199 check_2 tools/perf/arch/x86/entry/syscalls/syscall_32.tbl arch/x86/entry/syscalls/syscall_32.tbl
200 check_2 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
201 check_2 tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
202 check_2 tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
203 check_2 tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl
204
205 for i in "${BEAUTY_FILES[@]}"
206 do
207 beauty_check "$i" -B
208 done
209
210 # check duplicated library files
211 check_2 tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h
212 check_2 tools/perf/util/hashmap.c tools/lib/bpf/hashmap.c
213
214 # Files with larger differences
215
216 check_ignore_some_hunks lib/list_sort.c
217
218 cd tools/perf || exit
219
220 if [ ${#FAILURES[@]} -gt 0 ]
221 then
222 echo -e "${YELLOW}Warning${NC}: Kernel ABI header differences:"
223 for i in "${FAILURES[@]}"
224 do
225 echo " diff -u $i"
226 done
227 fi
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