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. 3ifneq ($(LLVM),) 4ifneq ($(filter %/,$(LLVM)),) 5LLVM_PREFIX := $(LLVM) 6else ifneq ($(filter -%,$(LLVM)),) 7LLVM_SUFFIX := $(LLVM) 8endif 9 10CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi 11CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu 12CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl 13CLANG_TARGET_FLAGS_i386 := i386-linux-gnu 14CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu 15CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu 16CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu 17CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu 18CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu 19CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu 20CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu 21CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH)) 22 23ifeq ($(CROSS_COMPILE),) 24ifeq ($(CLANG_TARGET_FLAGS),) 25$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk) 26else 27CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) 28endif # CLANG_TARGET_FLAGS 29else 30CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) 31endif # CROSS_COMPILE 32 33CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as 34else 35CC := $(CROSS_COMPILE)gcc 36endif # LLVM 37 38ifeq (0,$(MAKELEVEL)) 39 ifeq ($(OUTPUT),) 40 OUTPUT := $(shell pwd) 41 DEFAULT_INSTALL_HDR_PATH := 1 42 endif 43endif 44selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) 45top_srcdir = $(selfdir)/../../.. 46 47ifeq ($(KHDR_INCLUDES),) 48KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include 49endif 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. 57TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 58TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 59TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 60 61all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \ 62 $(if $(TEST_GEN_MODS_DIR),gen_mods_dir) 63 64define RUN_TESTS 65 BASE_DIR="$(selfdir)"; \ 66 . $(selfdir)/kselftest/runner.sh; \ 67 if [ "X$(summary)" != "X" ]; then \ 68 per_test_logging=1; \ 69 fi; \ 70 run_many $(1) 71endef 72 73define 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 ) 88endef 89 90run_tests: all 91ifdef 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 102else 103 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 104endif 105 106gen_mods_dir: 107 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) 108 109clean_mods_dir: 110 $(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean 111 112define INSTALL_SINGLE_RULE 113 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 114 $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/) 115endef 116 117define 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)) 120endef 121 122define 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) 132endef 133 134install: all 135ifdef INSTALL_PATH 136 $(INSTALL_RULE) 137 $(INSTALL_INCLUDES) 138else 139 $(error Error: set INSTALL_PATH to use install) 140endif 141 142emit_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. 149ifeq ($(RM),) 150RM := rm -f 151endif 152 153define CLEAN 154 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 155endef 156 157clean: $(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 162CFLAGS += $(USERCFLAGS) 163LDFLAGS += $(USERLDFLAGS) 164 165# When make O= with kselftest target from main level 166# the following aren't defined. 167# 168ifdef building_out_of_srctree 169LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 170COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 171LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 172endif 173 174# Selftest makefiles can override those targets by setting 175# OVERRIDE_TARGETS = 1. 176ifeq ($(OVERRIDE_TARGETS),) 177LOCAL_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 $@ 186endif 187 188.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir 189