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_m68k := m68k-linux-gnu 14CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu 15CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu 16CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu 17CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu 18CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu 19CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH)) 20 21ifeq ($(CROSS_COMPILE),) 22ifeq ($(CLANG_TARGET_FLAGS),) 23$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk) 24else 25CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) 26endif # CLANG_TARGET_FLAGS 27else 28CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) 29endif # CROSS_COMPILE 30 31CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as 32else 33CC := $(CROSS_COMPILE)gcc 34endif # LLVM 35 36ifeq (0,$(MAKELEVEL)) 37 ifeq ($(OUTPUT),) 38 OUTPUT := $(shell pwd) 39 DEFAULT_INSTALL_HDR_PATH := 1 40 endif 41endif 42selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) 43top_srcdir = $(selfdir)/../../.. 44 45ifeq ($(KHDR_INCLUDES),) 46KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include 47endif 48 49# The following are built by lib.mk common compile rules. 50# TEST_CUSTOM_PROGS should be used by tests that require 51# custom build rule and prevent common build rule use. 52# TEST_PROGS are for test shell scripts. 53# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests 54# and install targets. Common clean doesn't touch them. 55TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 56TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 57TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 58 59all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 60 61define RUN_TESTS 62 BASE_DIR="$(selfdir)"; \ 63 . $(selfdir)/kselftest/runner.sh; \ 64 if [ "X$(summary)" != "X" ]; then \ 65 per_test_logging=1; \ 66 fi; \ 67 run_many $(1) 68endef 69 70run_tests: all 71ifdef building_out_of_srctree 72 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ 73 rsync -aLq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ 74 fi 75 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 76 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 77 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 78 else \ 79 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 80 fi 81else 82 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 83endif 84 85define INSTALL_SINGLE_RULE 86 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 87 $(if $(INSTALL_LIST),rsync -aL $(INSTALL_LIST) $(INSTALL_PATH)/) 88endef 89 90define INSTALL_RULE 91 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 92 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 93 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 94 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 95 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 96 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 97 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 98 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 99endef 100 101install: all 102ifdef INSTALL_PATH 103 $(INSTALL_RULE) 104else 105 $(error Error: set INSTALL_PATH to use install) 106endif 107 108emit_tests: 109 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 110 BASENAME_TEST=`basename $$TEST`; \ 111 echo "$(COLLECTION):$$BASENAME_TEST"; \ 112 done 113 114# define if isn't already. It is undefined in make O= case. 115ifeq ($(RM),) 116RM := rm -f 117endif 118 119define CLEAN 120 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 121endef 122 123clean: 124 $(CLEAN) 125 126# Enables to extend CFLAGS and LDFLAGS from command line, e.g. 127# make USERCFLAGS=-Werror USERLDFLAGS=-static 128CFLAGS += $(USERCFLAGS) 129LDFLAGS += $(USERLDFLAGS) 130 131# When make O= with kselftest target from main level 132# the following aren't defined. 133# 134ifdef building_out_of_srctree 135LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 136COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 137LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 138endif 139 140# Selftest makefiles can override those targets by setting 141# OVERRIDE_TARGETS = 1. 142ifeq ($(OVERRIDE_TARGETS),) 143LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 144$(OUTPUT)/%:%.c $(LOCAL_HDRS) 145 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 146 147$(OUTPUT)/%.o:%.S 148 $(COMPILE.S) $^ -o $@ 149 150$(OUTPUT)/%:%.S 151 $(LINK.S) $^ $(LDLIBS) -o $@ 152endif 153 154.PHONY: run_tests all clean install emit_tests 155