tools/testing/selftests/lib.mk

   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 ($(LLVM),)
   4 ifneq ($(filter %/,$(LLVM)),)
   5 LLVM_PREFIX := $(LLVM)
   6 else ifneq ($(filter -%,$(LLVM)),)
   7 LLVM_SUFFIX := $(LLVM)
   8 endif
   9
  10 CLANG_TARGET_FLAGS_arm          := arm-linux-gnueabi
  11 CLANG_TARGET_FLAGS_arm64        := aarch64-linux-gnu
  12 CLANG_TARGET_FLAGS_hexagon      := hexagon-linux-musl
  13 CLANG_TARGET_FLAGS_i386         := i386-linux-gnu
  14 CLANG_TARGET_FLAGS_m68k         := m68k-linux-gnu
  15 CLANG_TARGET_FLAGS_mips         := mipsel-linux-gnu
  16 CLANG_TARGET_FLAGS_powerpc      := powerpc64le-linux-gnu
  17 CLANG_TARGET_FLAGS_riscv        := riscv64-linux-gnu
  18 CLANG_TARGET_FLAGS_s390         := s390x-linux-gnu
  19 CLANG_TARGET_FLAGS_x86          := x86_64-linux-gnu
  20 CLANG_TARGET_FLAGS_x86_64       := x86_64-linux-gnu
  21 CLANG_TARGET_FLAGS              := $(CLANG_TARGET_FLAGS_$(ARCH))
  22
  23 ifeq ($(CROSS_COMPILE),)
  24 ifeq ($(CLANG_TARGET_FLAGS),)
  25 $(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
  26 else
  27 CLANG_FLAGS     += --target=$(CLANG_TARGET_FLAGS)
  28 endif # CLANG_TARGET_FLAGS
  29 else
  30 CLANG_FLAGS     += --target=$(notdir $(CROSS_COMPILE:%-=%))
  31 endif # CROSS_COMPILE
  32
  33 CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as
  34 else
  35 CC := $(CROSS_COMPILE)gcc
  36 endif # LLVM
  37
  38 ifeq (0,$(MAKELEVEL))
  39     ifeq ($(OUTPUT),)
  40         OUTPUT := $(shell pwd)
  41         DEFAULT_INSTALL_HDR_PATH := 1
  42     endif
  43 endif
  44 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
  45 top_srcdir = $(selfdir)/../../..
  46
  47 ifeq ($(KHDR_INCLUDES),)
  48 KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
  49 endif
  50
  51 # The following are built by lib.mk common compile rules.
  52 # TEST_CUSTOM_PROGS should be used by tests that require
  53 # custom build rule and prevent common build rule use.
  54 # TEST_PROGS are for test shell scripts.
  55 # TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
  56 # and install targets. Common clean doesn't touch them.
  57 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
  58 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
  59 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
  60
  61 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
  62
  63 define RUN_TESTS
  64         BASE_DIR="$(selfdir)";                  \
  65         . $(selfdir)/kselftest/runner.sh;       \
  66         if [ "X$(summary)" != "X" ]; then       \
  67                 per_test_logging=1;             \
  68         fi;                                     \
  69         run_many $(1)
  70 endef
  71
  72 run_tests: all
  73 ifdef building_out_of_srctree
  74         @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
  75                 rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
  76         fi
  77         @if [ "X$(TEST_PROGS)" != "X" ]; then \
  78                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
  79                                   $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
  80         else \
  81                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
  82         fi
  83 else
  84         @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
  85 endif
  86
  87 define INSTALL_SINGLE_RULE
  88         $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
  89         $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/)
  90 endef
  91
  92 define INSTALL_RULE
  93         $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
  94         $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  95         $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
  96         $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
  97         $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
  98         $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  99         $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
 100         $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
 101 endef
 102
 103 install: all
 104 ifdef INSTALL_PATH
 105         $(INSTALL_RULE)
 106 else
 107         $(error Error: set INSTALL_PATH to use install)
 108 endif
 109
 110 emit_tests:
 111         for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
 112                 BASENAME_TEST=`basename $$TEST`;        \
 113                 echo "$(COLLECTION):$$BASENAME_TEST";   \
 114         done
 115
 116 # define if isn't already. It is undefined in make O= case.
 117 ifeq ($(RM),)
 118 RM := rm -f
 119 endif
 120
 121 define CLEAN
 122         $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 123 endef
 124
 125 clean:
 126         $(CLEAN)
 127
 128 # Enables to extend CFLAGS and LDFLAGS from command line, e.g.
 129 # make USERCFLAGS=-Werror USERLDFLAGS=-static
 130 CFLAGS += $(USERCFLAGS)
 131 LDFLAGS += $(USERLDFLAGS)
 132
 133 # When make O= with kselftest target from main level
 134 # the following aren't defined.
 135 #
 136 ifdef building_out_of_srctree
 137 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 138 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
 139 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 140 endif
 141
 142 # Selftest makefiles can override those targets by setting
 143 # OVERRIDE_TARGETS = 1.
 144 ifeq ($(OVERRIDE_TARGETS),)
 145 LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
 146 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
 147         $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
 148
 149 $(OUTPUT)/%.o:%.S
 150         $(COMPILE.S) $^ -o $@
 151
 152 $(OUTPUT)/%:%.S
 153         $(LINK.S) $^ $(LDLIBS) -o $@
 154 endif
 155
 156 .PHONY: run_tests all clean install emit_tests