1 # This mimics the top-level Makefile. We do it
2 # Makefile can operate with or without the kbu
3 ifneq ($(LLVM),)
4 ifneq ($(filter %/,$(LLVM)),)
5 LLVM_PREFIX := $(LLVM)
6 else ifneq ($(filter -%,$(LLVM)),)
7 LLVM_SUFFIX := $(LLVM)
8 endif
9
10 CLANG := $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
11
12 CLANG_TARGET_FLAGS_arm := arm-linux-g
13 CLANG_TARGET_FLAGS_arm64 := aarch64-lin
14 CLANG_TARGET_FLAGS_hexagon := hexagon-lin
15 CLANG_TARGET_FLAGS_i386 := i386-linux-
16 CLANG_TARGET_FLAGS_m68k := m68k-linux-
17 CLANG_TARGET_FLAGS_mips := mipsel-linu
18 CLANG_TARGET_FLAGS_powerpc := powerpc64le
19 CLANG_TARGET_FLAGS_riscv := riscv64-lin
20 CLANG_TARGET_FLAGS_s390 := s390x-linux
21 CLANG_TARGET_FLAGS_x86 := x86_64-linu
22 CLANG_TARGET_FLAGS_x86_64 := x86_64-linu
23
24 # Default to host architecture if ARCH is not
25 ifeq ($(ARCH),)
26 CLANG_TARGET_FLAGS := $(shell $(CLANG) -print-
27 else
28 CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(A
29 endif
30
31 ifeq ($(CROSS_COMPILE),)
32 ifeq ($(CLANG_TARGET_FLAGS),)
33 $(error Specify CROSS_COMPILE or add '--target
34 else
35 CLANG_FLAGS += --target=$(CLANG_TARGET_FLA
36 endif # CLANG_TARGET_FLAGS
37 else
38 CLANG_FLAGS += --target=$(notdir $(CROSS_C
39 endif # CROSS_COMPILE
40
41 # gcc defaults to silence (off) for the follow
42 # to the opposite. The warnings are not useful
43 # why they have remained disabled in gcc for t
44 # only due to including kernel data structures
45 # warnings from clang. Therefore, disable the
46 CFLAGS += -Wno-address-of-packed-member
47 CFLAGS += -Wno-gnu-variable-sized-type-not-at-
48
49 CC := $(CLANG) $(CLANG_FLAGS) -fintegrated-as
50 else
51 CC := $(CROSS_COMPILE)gcc
52 endif # LLVM
53
54 ifeq (0,$(MAKELEVEL))
55 ifeq ($(OUTPUT),)
56 OUTPUT := $(shell pwd)
57 DEFAULT_INSTALL_HDR_PATH := 1
58 endif
59 endif
60 selfdir = $(realpath $(dir $(filter %/lib.mk,$
61 top_srcdir = $(selfdir)/../../..
62
63 # msg: emit succinct information message descr
64 # $1 - generic step name (e.g., CC, LINK, etc)
65 # $2 - optional "flavor" specifier; if provide
66 # $3 - target (assumed to be file); only file
67 # $4 - optional extra arg, emitted as-is, if p
68 ifeq ($(V),1)
69 Q =
70 msg =
71 else
72 Q = @
73 msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $
74 MAKEFLAGS += --no-print-directory
75 endif
76
77 ifeq ($(KHDR_INCLUDES),)
78 KHDR_INCLUDES := -isystem $(top_srcdir)/usr/in
79 endif
80
81 # In order to use newer items that haven't yet
82 # header files, add $(TOOLS_INCLUDES) to the c
83 # each selftest.
84 # You may need to add files to that location,
85 # order to do that, run "make headers" from $(
86 # header file that you want from $(top_srcdir)
87 # subdir in $(TOOLS_INCLUDE).
88 TOOLS_INCLUDES := -isystem $(top_srcdir)/tools
89
90 # The following are built by lib.mk common com
91 # TEST_CUSTOM_PROGS should be used by tests th
92 # custom build rule and prevent common build r
93 # TEST_PROGS are for test shell scripts.
94 # TEST_CUSTOM_PROGS and TEST_PROGS will be run
95 # and install targets. Common clean doesn't to
96 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(T
97 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTP
98 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(T
99
100 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTEND
101 $(if $(TEST_GEN_MODS_DIR),gen_mods_dir
102
103 define RUN_TESTS
104 BASE_DIR="$(selfdir)";
105 . $(selfdir)/kselftest/runner.sh;
106 if [ "X$(summary)" != "X" ]; then
107 per_test_logging=1;
108 fi;
109 run_many $(1)
110 endef
111
112 define INSTALL_INCLUDES
113 $(if $(TEST_INCLUDES), \
114 relative_files=""; \
115 for entry in $(TEST_INCLUDES);
116 entry_dir=$$(readlink
117 entry_name=$$(basename
118 relative_dir=$${entry_
119 if [ "$$relative_dir"
120 echo "Error: T
121 exit 1; \
122 fi; \
123 relative_files="$$rela
124 done; \
125 cd $(SRC_PATH) && rsync -aR $$
126 )
127 endef
128
129 run_tests: all
130 ifdef building_out_of_srctree
131 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTE
132 rsync -aq --copy-unsafe-links
133 fi
134 @$(INSTALL_INCLUDES)
135 @if [ "X$(TEST_PROGS)" != "X" ]; then
136 $(call RUN_TESTS, $(TEST_GEN_P
137 $(addprefix
138 else \
139 $(call RUN_TESTS, $(TEST_GEN_P
140 fi
141 else
142 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $
143 endif
144
145 gen_mods_dir:
146 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR)
147
148 clean_mods_dir:
149 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) cl
150
151 define INSTALL_SINGLE_RULE
152 $(if $(INSTALL_LIST),@mkdir -p $(INSTA
153 $(if $(INSTALL_LIST),rsync -a --copy-u
154 endef
155
156 define INSTALL_MODS_RULE
157 $(if $(INSTALL_LIST),@mkdir -p $(INSTA
158 $(if $(INSTALL_LIST),rsync -a --copy-u
159 endef
160
161 define INSTALL_RULE
162 $(eval INSTALL_LIST = $(TEST_PROGS)) $
163 $(eval INSTALL_LIST = $(TEST_PROGS_EXT
164 $(eval INSTALL_LIST = $(TEST_FILES)) $
165 $(eval INSTALL_LIST = $(TEST_GEN_PROGS
166 $(eval INSTALL_LIST = $(TEST_CUSTOM_PR
167 $(eval INSTALL_LIST = $(TEST_GEN_PROGS
168 $(eval INSTALL_LIST = $(TEST_GEN_FILES
169 $(eval INSTALL_LIST = $(notdir $(TEST_
170 $(eval INSTALL_LIST = $(wildcard confi
171 endef
172
173 install: all
174 ifdef INSTALL_PATH
175 $(INSTALL_RULE)
176 $(INSTALL_INCLUDES)
177 else
178 $(error Error: set INSTALL_PATH to use
179 endif
180
181 emit_tests:
182 for TEST in $(TEST_GEN_PROGS) $(TEST_C
183 BASENAME_TEST=`basename $$TEST
184 echo "$(COLLECTION):$$BASENAME
185 done
186
187 # define if isn't already. It is undefined in
188 ifeq ($(RM),)
189 RM := rm -f
190 endif
191
192 define CLEAN
193 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_
194 endef
195
196 clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_di
197 $(CLEAN)
198
199 # Build with _GNU_SOURCE by default
200 CFLAGS += -D_GNU_SOURCE=
201
202 # Enables to extend CFLAGS and LDFLAGS from co
203 # make USERCFLAGS=-Werror USERLDFLAGS=-static
204 CFLAGS += $(USERCFLAGS)
205 LDFLAGS += $(USERLDFLAGS)
206
207 # When make O= with kselftest target from main
208 # the following aren't defined.
209 #
210 ifdef building_out_of_srctree
211 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS
212 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TAR
213 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAG
214 endif
215
216 # Selftest makefiles can override those target
217 # OVERRIDE_TARGETS = 1.
218 ifeq ($(OVERRIDE_TARGETS),)
219 LOCAL_HDRS += $(selfdir)/kselftest_harness.h $
220 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
221 $(call msg,CC,,$@)
222 $(Q)$(LINK.c) $(filter-out $(LOCAL_HDR
223
224 $(OUTPUT)/%.o:%.S
225 $(COMPILE.S) $^ -o $@
226
227 $(OUTPUT)/%:%.S
228 $(LINK.S) $^ $(LDLIBS) -o $@
229 endif
230
231 .PHONY: run_tests all clean install emit_tests
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