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) $(TEST_GEN_FILES) 62 63define RUN_TESTS 64 BASE_DIR="$(selfdir)"; \ 65 . $(selfdir)/kselftest/runner.sh; \ 66 if [ "X$(summary)" != "X" ]; then \ 67 per_test_logging=1; \ 68 fi; \ 69 run_many $(1) 70endef 71 72run_tests: all 73ifdef building_out_of_srctree 74 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ 75 rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ 76 fi 77 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 78 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 79 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 80 else \ 81 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 82 fi 83else 84 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 85endif 86 87define INSTALL_SINGLE_RULE 88 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 89 $(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/) 90endef 91 92define INSTALL_RULE 93 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 94 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 95 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 96 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 97 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 98 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 99 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 100 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 101endef 102 103install: all 104ifdef INSTALL_PATH 105 $(INSTALL_RULE) 106else 107 $(error Error: set INSTALL_PATH to use install) 108endif 109 110emit_tests: 111 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 112 BASENAME_TEST=`basename $$TEST`; \ 113 echo "$(COLLECTION):$$BASENAME_TEST"; \ 114 done 115 116# define if isn't already. It is undefined in make O= case. 117ifeq ($(RM),) 118RM := rm -f 119endif 120 121define CLEAN 122 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 123endef 124 125clean: 126 $(CLEAN) 127 128# Enables to extend CFLAGS and LDFLAGS from command line, e.g. 129# make USERCFLAGS=-Werror USERLDFLAGS=-static 130CFLAGS += $(USERCFLAGS) 131LDFLAGS += $(USERLDFLAGS) 132 133# When make O= with kselftest target from main level 134# the following aren't defined. 135# 136ifdef building_out_of_srctree 137LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 138COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 139LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 140endif 141 142# Selftest makefiles can override those targets by setting 143# OVERRIDE_TARGETS = 1. 144ifeq ($(OVERRIDE_TARGETS),) 145LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 146$(OUTPUT)/%:%.c $(LOCAL_HDRS) 147 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 148 149$(OUTPUT)/%.o:%.S 150 $(COMPILE.S) $^ -o $@ 151 152$(OUTPUT)/%:%.S 153 $(LINK.S) $^ $(LDLIBS) -o $@ 154endif 155 156.PHONY: run_tests all clean install emit_tests 157