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
  44 # The following are built by lib.mk common compile rules.
  45 # TEST_CUSTOM_PROGS should be used by tests that require
  46 # custom build rule and prevent common build rule use.
  47 # TEST_PROGS are for test shell scripts.
  48 # TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
  49 # and install targets. Common clean doesn't touch them.
  50 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
  51 TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
  52 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
  53
  54 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
  55
  56 define RUN_TESTS
  57         BASE_DIR="$(selfdir)";                  \
  58         . $(selfdir)/kselftest/runner.sh;       \
  59         if [ "X$(summary)" != "X" ]; then       \
  60                 per_test_logging=1;             \
  61         fi;                                     \
  62         run_many $(1)
  63 endef
  64
  65 run_tests: all
  66 ifdef building_out_of_srctree
  67         @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
  68                 rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \
  69         fi
  70         @if [ "X$(TEST_PROGS)" != "X" ]; then \
  71                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
  72                                   $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
  73         else \
  74                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
  75         fi
  76 else
  77         @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
  78 endif
  79
  80 define INSTALL_SINGLE_RULE
  81         $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
  82         $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/)
  83 endef
  84
  85 define INSTALL_RULE
  86         $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
  87         $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  88         $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
  89         $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
  90         $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
  91         $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
  92         $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
  93         $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
  94 endef
  95
  96 install: all
  97 ifdef INSTALL_PATH
  98         $(INSTALL_RULE)
  99 else
 100         $(error Error: set INSTALL_PATH to use install)
 101 endif
 102
 103 emit_tests:
 104         for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
 105                 BASENAME_TEST=`basename $$TEST`;        \
 106                 echo "$(COLLECTION):$$BASENAME_TEST";   \
 107         done
 108
 109 # define if isn't already. It is undefined in make O= case.
 110 ifeq ($(RM),)
 111 RM := rm -f
 112 endif
 113
 114 define CLEAN
 115         $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 116 endef
 117
 118 clean:
 119         $(CLEAN)
 120
 121 # When make O= with kselftest target from main level
 122 # the following aren't defined.
 123 #
 124 ifdef building_out_of_srctree
 125 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 126 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
 127 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 128 endif
 129
 130 # Selftest makefiles can override those targets by setting
 131 # OVERRIDE_TARGETS = 1.
 132 ifeq ($(OVERRIDE_TARGETS),)
 133 LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
 134 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
 135         $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
 136
 137 $(OUTPUT)/%.o:%.S
 138         $(COMPILE.S) $^ -o $@
 139
 140 $(OUTPUT)/%:%.S
 141         $(LINK.S) $^ $(LDLIBS) -o $@
 142 endif
 143
 144 .PHONY: run_tests all clean install emit_tests