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         $(if $(TEST_GEN_MODS_DIR),gen_mods_dir)
  63
  64 define RUN_TESTS
  65         BASE_DIR="$(selfdir)";                  \
  66         . $(selfdir)/kselftest/runner.sh;       \
  67         if [ "X$(summary)" != "X" ]; then       \
  68                 per_test_logging=1;             \
  69         fi;                                     \
  70         run_many $(1)
  71 endef
  72
  73 define INSTALL_INCLUDES
  74         $(if $(TEST_INCLUDES), \
  75                 relative_files=""; \
  76                 for entry in $(TEST_INCLUDES); do \
  77                         entry_dir=$$(readlink -e "$$(dirname "$$entry")"); \
  78                         entry_name=$$(basename "$$entry"); \
  79                         relative_dir=$${entry_dir#"$$SRC_PATH"/}; \
  80                         if [ "$$relative_dir" = "$$entry_dir" ]; then \
  81                                 echo "Error: TEST_INCLUDES entry \"$$entry\" not located inside selftests directory ($$SRC_PATH)" >&2; \
  82                                 exit 1; \
  83                         fi; \
  84                         relative_files="$$relative_files $$relative_dir/$$entry_name"; \
  85                 done; \
  86                 cd $(SRC_PATH) && rsync -aR $$relative_files $(OBJ_PATH)/ \
  87         )
  88 endef
  89
  90 run_tests: all
  91 ifdef building_out_of_srctree
  92         @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)$(TEST_GEN_MODS_DIR)" != "X" ]; then \
  93                 rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(TEST_GEN_MODS_DIR) $(OUTPUT); \
  94         fi
  95         @$(INSTALL_INCLUDES)
  96         @if [ "X$(TEST_PROGS)" != "X" ]; then \
  97                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
  98                                   $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
  99         else \
 100                 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
 101         fi
 102 else
 103         @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
 104 endif
 105
 106 gen_mods_dir:
 107         $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR)
 108
 109 clean_mods_dir:
 110         $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean
 111
 112 define INSTALL_SINGLE_RULE
 113         $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
 114         $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/)
 115 endef
 116
 117 define INSTALL_MODS_RULE
 118         $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)/$(INSTALL_LIST))
 119         $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST)/*.ko $(INSTALL_PATH)/$(INSTALL_LIST))
 120 endef
 121
 122 define INSTALL_RULE
 123         $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
 124         $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
 125         $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
 126         $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
 127         $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
 128         $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
 129         $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
 130         $(eval INSTALL_LIST = $(notdir $(TEST_GEN_MODS_DIR))) $(INSTALL_MODS_RULE)
 131         $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
 132 endef
 133
 134 install: all
 135 ifdef INSTALL_PATH
 136         $(INSTALL_RULE)
 137         $(INSTALL_INCLUDES)
 138 else
 139         $(error Error: set INSTALL_PATH to use install)
 140 endif
 141
 142 emit_tests:
 143         for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
 144                 BASENAME_TEST=`basename $$TEST`;        \
 145                 echo "$(COLLECTION):$$BASENAME_TEST";   \
 146         done
 147
 148 # define if isn't already. It is undefined in make O= case.
 149 ifeq ($(RM),)
 150 RM := rm -f
 151 endif
 152
 153 define CLEAN
 154         $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 155 endef
 156
 157 clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_dir)
 158         $(CLEAN)
 159
 160 # Enables to extend CFLAGS and LDFLAGS from command line, e.g.
 161 # make USERCFLAGS=-Werror USERLDFLAGS=-static
 162 CFLAGS += $(USERCFLAGS)
 163 LDFLAGS += $(USERLDFLAGS)
 164
 165 # When make O= with kselftest target from main level
 166 # the following aren't defined.
 167 #
 168 ifdef building_out_of_srctree
 169 LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 170 COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
 171 LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
 172 endif
 173
 174 # Selftest makefiles can override those targets by setting
 175 # OVERRIDE_TARGETS = 1.
 176 ifeq ($(OVERRIDE_TARGETS),)
 177 LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
 178 $(OUTPUT)/%:%.c $(LOCAL_HDRS)
 179         $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
 180
 181 $(OUTPUT)/%.o:%.S
 182         $(COMPILE.S) $^ -o $@
 183
 184 $(OUTPUT)/%:%.S
 185         $(LINK.S) $^ $(LDLIBS) -o $@
 186 endif
 187
 188 .PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir