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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