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_m68k         := m68k-linux-gnu
  14 CLANG_TARGET_FLAGS_mips         := mipsel-linux-gnu
  15 CLANG_TARGET_FLAGS_powerpc      := powerpc64le-linux-gnu
  16 CLANG_TARGET_FLAGS_riscv        := riscv64-linux-gnu
  17 CLANG_TARGET_FLAGS_s390         := s390x-linux-gnu
  18 CLANG_TARGET_FLAGS_x86          := x86_64-linux-gnu
  19 CLANG_TARGET_FLAGS              := $(CLANG_TARGET_FLAGS_$(ARCH))
  20
  21 ifeq ($(CROSS_COMPILE),)
  22 ifeq ($(CLANG_TARGET_FLAGS),)
  23 $(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
  24 else
  25 CLANG_FLAGS     += --target=$(CLANG_TARGET_FLAGS)
  26 endif # CLANG_TARGET_FLAGS
  27 else
  28 CLANG_FLAGS     += --target=$(notdir $(CROSS_COMPILE:%-=%))
  29 endif # CROSS_COMPILE
  30
  31 CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as
  32 else
  33 CC := $(CROSS_COMPILE)gcc
  34 endif # LLVM
  35
  36 ifeq (0,$(MAKELEVEL))
  37     ifeq ($(OUTPUT),)
  38         OUTPUT := $(shell pwd)
  39         DEFAULT_INSTALL_HDR_PATH := 1
  40     endif
  41 endif
  42 selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
  43 top_srcdir = $(selfdir)/../../..
  44
  45 ifeq ($(KHDR_INCLUDES),)
  46 KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
  47 endif
  48
  49 # The following are built by lib.mk common compile rules.
  50 # TEST_CUSTOM_PROGS should be used by tests that require
  51 # custom build rule and prevent common build rule use.
  52 # TEST_PROGS are for test shell scripts.
  53 # TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
  54 # and install targets. Common clean doesn't touch them.
  55 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
  56 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
  57 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
  58
  59 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
  60
  61 define RUN_TESTS
  62         BASE_DIR="$(selfdir)";                  \
  63         . $(selfdir)/kselftest/runner.sh;       \
  64         if [ "X$(summary)" != "X" ]; then       \
  65                 per_test_logging=1;             \
  66         fi;                                     \
  67         run_many $(1)
  68 endef
  69
  70 run_tests: all
  71 ifdef building_out_of_srctree
  72         @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
  73                 rsync -aLq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
  74         fi
  75         @if [ "X$(TEST_PROGS)" != "X" ]; then \
  76                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
  77                                   $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
  78         else \
  79                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
  80         fi
  81 else
  82         @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
  83 endif
  84
  85 define INSTALL_SINGLE_RULE
  86         $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
  87         $(if $(INSTALL_LIST),rsync -aL $(INSTALL_LIST) $(INSTALL_PATH)/)
  88 endef
  89
  90 define INSTALL_RULE
  91         $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
  92         $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  93         $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
  94         $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
  95         $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
  96         $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  97         $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
  98         $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
  99 endef
 100
 101 install: all
 102 ifdef INSTALL_PATH
 103         $(INSTALL_RULE)
 104 else
 105         $(error Error: set INSTALL_PATH to use install)
 106 endif
 107
 108 emit_tests:
 109         for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
 110                 BASENAME_TEST=`basename $$TEST`;        \
 111                 echo "$(COLLECTION):$$BASENAME_TEST";   \
 112         done
 113
 114 # define if isn't already. It is undefined in make O= case.
 115 ifeq ($(RM),)
 116 RM := rm -f
 117 endif
 118
 119 define CLEAN
 120         $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 121 endef
 122
 123 clean:
 124         $(CLEAN)
 125
 126 # Enables to extend CFLAGS and LDFLAGS from command line, e.g.
 127 # make USERCFLAGS=-Werror USERLDFLAGS=-static
 128 CFLAGS += $(USERCFLAGS)
 129 LDFLAGS += $(USERLDFLAGS)
 130
 131 # When make O= with kselftest target from main level
 132 # the following aren't defined.
 133 #
 134 ifdef building_out_of_srctree
 135 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 136 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
 137 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 138 endif
 139
 140 # Selftest makefiles can override those targets by setting
 141 # OVERRIDE_TARGETS = 1.
 142 ifeq ($(OVERRIDE_TARGETS),)
 143 LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
 144 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
 145         $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
 146
 147 $(OUTPUT)/%.o:%.S
 148         $(COMPILE.S) $^ -o $@
 149
 150 $(OUTPUT)/%:%.S
 151         $(LINK.S) $^ $(LDLIBS) -o $@
 152 endif
 153
 154 .PHONY: run_tests all clean install emit_tests