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