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 := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) 11 12CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi 13CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu 14CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl 15CLANG_TARGET_FLAGS_i386 := i386-linux-gnu 16CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu 17CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu 18CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu 19CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu 20CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu 21CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu 22CLANG_TARGET_FLAGS_x86_64 := x86_64-linux-gnu 23 24# Default to host architecture if ARCH is not explicitly given. 25ifeq ($(ARCH),) 26CLANG_TARGET_FLAGS := $(shell $(CLANG) -print-target-triple) 27else 28CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH)) 29endif 30 31ifeq ($(CROSS_COMPILE),) 32ifeq ($(CLANG_TARGET_FLAGS),) 33$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk) 34else 35CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) 36endif # CLANG_TARGET_FLAGS 37else 38CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) 39endif # CROSS_COMPILE 40 41CC := $(CLANG) $(CLANG_FLAGS) -fintegrated-as 42else 43CC := $(CROSS_COMPILE)gcc 44endif # LLVM 45 46ifeq (0,$(MAKELEVEL)) 47 ifeq ($(OUTPUT),) 48 OUTPUT := $(shell pwd) 49 DEFAULT_INSTALL_HDR_PATH := 1 50 endif 51endif 52selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) 53top_srcdir = $(selfdir)/../../.. 54 55ifeq ($(KHDR_INCLUDES),) 56KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include 57endif 58 59# The following are built by lib.mk common compile rules. 60# TEST_CUSTOM_PROGS should be used by tests that require 61# custom build rule and prevent common build rule use. 62# TEST_PROGS are for test shell scripts. 63# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests 64# and install targets. Common clean doesn't touch them. 65TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 66TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 67TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 68 69all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 70 71define RUN_TESTS 72 BASE_DIR="$(selfdir)"; \ 73 . $(selfdir)/kselftest/runner.sh; \ 74 if [ "X$(summary)" != "X" ]; then \ 75 per_test_logging=1; \ 76 fi; \ 77 run_many $(1) 78endef 79 80define INSTALL_INCLUDES 81 $(if $(TEST_INCLUDES), \ 82 relative_files=""; \ 83 for entry in $(TEST_INCLUDES); do \ 84 entry_dir=$$(readlink -e "$$(dirname "$$entry")"); \ 85 entry_name=$$(basename "$$entry"); \ 86 relative_dir=$${entry_dir#"$$SRC_PATH"/}; \ 87 if [ "$$relative_dir" = "$$entry_dir" ]; then \ 88 echo "Error: TEST_INCLUDES entry \"$$entry\" not located inside selftests directory ($$SRC_PATH)" >&2; \ 89 exit 1; \ 90 fi; \ 91 relative_files="$$relative_files $$relative_dir/$$entry_name"; \ 92 done; \ 93 cd $(SRC_PATH) && rsync -aR $$relative_files $(OBJ_PATH)/ \ 94 ) 95endef 96 97run_tests: all 98ifdef building_out_of_srctree 99 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ 100 rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ 101 fi 102 @$(INSTALL_INCLUDES) 103 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 104 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 105 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 106 else \ 107 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 108 fi 109else 110 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 111endif 112 113define INSTALL_SINGLE_RULE 114 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 115 $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/) 116endef 117 118define INSTALL_RULE 119 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 120 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 121 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 122 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 123 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 124 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 125 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 126 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 127endef 128 129install: all 130ifdef INSTALL_PATH 131 $(INSTALL_RULE) 132 $(INSTALL_INCLUDES) 133else 134 $(error Error: set INSTALL_PATH to use install) 135endif 136 137emit_tests: 138 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 139 BASENAME_TEST=`basename $$TEST`; \ 140 echo "$(COLLECTION):$$BASENAME_TEST"; \ 141 done 142 143# define if isn't already. It is undefined in make O= case. 144ifeq ($(RM),) 145RM := rm -f 146endif 147 148define CLEAN 149 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 150endef 151 152clean: 153 $(CLEAN) 154 155# Enables to extend CFLAGS and LDFLAGS from command line, e.g. 156# make USERCFLAGS=-Werror USERLDFLAGS=-static 157CFLAGS += $(USERCFLAGS) 158LDFLAGS += $(USERLDFLAGS) 159 160# When make O= with kselftest target from main level 161# the following aren't defined. 162# 163ifdef building_out_of_srctree 164LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 165COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 166LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 167endif 168 169# Selftest makefiles can override those targets by setting 170# OVERRIDE_TARGETS = 1. 171ifeq ($(OVERRIDE_TARGETS),) 172LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 173$(OUTPUT)/%:%.c $(LOCAL_HDRS) 174 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 175 176$(OUTPUT)/%.o:%.S 177 $(COMPILE.S) $^ -o $@ 178 179$(OUTPUT)/%:%.S 180 $(LINK.S) $^ $(LDLIBS) -o $@ 181endif 182 183.PHONY: run_tests all clean install emit_tests 184