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TOMOYO Linux Cross Reference
Linux/tools/testing/selftests/lib.mk

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  1 # This mimics the top-level Makefile. We do it explicitly here so that this
  2 # Makefile can operate with or without the kbuild infrastructure.
  3 ifneq ($(LLVM),)
  4 CC := clang
  5 else
  6 CC := $(CROSS_COMPILE)gcc
  7 endif
  8 
  9 ifeq (0,$(MAKELEVEL))
 10     ifeq ($(OUTPUT),)
 11         OUTPUT := $(shell pwd)
 12         DEFAULT_INSTALL_HDR_PATH := 1
 13     endif
 14 endif
 15 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
 16 
 17 # The following are built by lib.mk common compile rules.
 18 # TEST_CUSTOM_PROGS should be used by tests that require
 19 # custom build rule and prevent common build rule use.
 20 # TEST_PROGS are for test shell scripts.
 21 # TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
 22 # and install targets. Common clean doesn't touch them.
 23 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
 24 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
 25 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
 26 
 27 ifdef KSFT_KHDR_INSTALL
 28 top_srcdir ?= ../../../..
 29 include $(top_srcdir)/scripts/subarch.include
 30 ARCH            ?= $(SUBARCH)
 31 
 32 # set default goal to all, so make without a target runs all, even when
 33 # all isn't the first target in the file.
 34 .DEFAULT_GOAL := all
 35 
 36 # Invoke headers install with --no-builtin-rules to avoid circular
 37 # dependency in "make kselftest" case. In this case, second level
 38 # make inherits builtin-rules which will use the rule generate
 39 # Makefile.o and runs into
 40 # "Circular Makefile.o <- prepare dependency dropped."
 41 # and headers_install fails and test compile fails.
 42 # O= KBUILD_OUTPUT cases don't run into this error, since main Makefile
 43 # invokes them as sub-makes and --no-builtin-rules is not necessary,
 44 # but doesn't cause any failures. Keep it simple and use the same
 45 # flags in both cases.
 46 # Note that the support to install headers from lib.mk is necessary
 47 # when test Makefile is run directly with "make -C".
 48 # When local build is done, headers are installed in the default
 49 # INSTALL_HDR_PATH usr/include.
 50 .PHONY: khdr
 51 khdr:
 52 ifndef KSFT_KHDR_INSTALL_DONE
 53 ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
 54         $(MAKE) --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
 55 else
 56         $(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
 57                 ARCH=$(ARCH) -C $(top_srcdir) headers_install
 58 endif
 59 endif
 60 
 61 all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
 62 else
 63 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
 64 endif
 65 
 66 define RUN_TESTS
 67         BASE_DIR="$(selfdir)";                  \
 68         . $(selfdir)/kselftest/runner.sh;       \
 69         if [ "X$(summary)" != "X" ]; then       \
 70                 per_test_logging=1;             \
 71         fi;                                     \
 72         run_many $(1)
 73 endef
 74 
 75 run_tests: all
 76 ifdef building_out_of_srctree
 77         @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
 78                 rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
 79         fi
 80         @if [ "X$(TEST_PROGS)" != "X" ]; then \
 81                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
 82                                   $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
 83         else \
 84                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
 85         fi
 86 else
 87         @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
 88 endif
 89 
 90 define INSTALL_SINGLE_RULE
 91         $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
 92         $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/)
 93 endef
 94 
 95 define INSTALL_RULE
 96         $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
 97         $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
 98         $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
 99         $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
100         $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
101         $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
102         $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
103 endef
104 
105 install: all
106 ifdef INSTALL_PATH
107         $(INSTALL_RULE)
108 else
109         $(error Error: set INSTALL_PATH to use install)
110 endif
111 
112 emit_tests:
113         for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
114                 BASENAME_TEST=`basename $$TEST`;        \
115                 echo "$(COLLECTION):$$BASENAME_TEST";   \
116         done
117 
118 # define if isn't already. It is undefined in make O= case.
119 ifeq ($(RM),)
120 RM := rm -f
121 endif
122 
123 define CLEAN
124         $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
125 endef
126 
127 clean:
128         $(CLEAN)
129 
130 # When make O= with kselftest target from main level
131 # the following aren't defined.
132 #
133 ifdef building_out_of_srctree
134 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
135 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
136 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
137 endif
138 
139 # Selftest makefiles can override those targets by setting
140 # OVERRIDE_TARGETS = 1.
141 ifeq ($(OVERRIDE_TARGETS),)
142 LOCAL_HDRS := $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
143 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
144         $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
145 
146 $(OUTPUT)/%.o:%.S
147         $(COMPILE.S) $^ -o $@
148 
149 $(OUTPUT)/%:%.S
150         $(LINK.S) $^ $(LDLIBS) -o $@
151 endif
152 
153 .PHONY: run_tests all clean install emit_tests

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