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 45# The following are built by lib.mk common compile rules. 46# TEST_CUSTOM_PROGS should be used by tests that require 47# custom build rule and prevent common build rule use. 48# TEST_PROGS are for test shell scripts. 49# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests 50# and install targets. Common clean doesn't touch them. 51TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 52TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 53TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 54 55all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 56 57define RUN_TESTS 58 BASE_DIR="$(selfdir)"; \ 59 . $(selfdir)/kselftest/runner.sh; \ 60 if [ "X$(summary)" != "X" ]; then \ 61 per_test_logging=1; \ 62 fi; \ 63 run_many $(1) 64endef 65 66run_tests: all 67ifdef building_out_of_srctree 68 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ 69 rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ 70 fi 71 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 72 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 73 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 74 else \ 75 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 76 fi 77else 78 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 79endif 80 81define INSTALL_SINGLE_RULE 82 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 83 $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/) 84endef 85 86define INSTALL_RULE 87 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 88 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 89 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 90 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 91 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 92 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 93 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 94 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 95endef 96 97install: all 98ifdef INSTALL_PATH 99 $(INSTALL_RULE) 100else 101 $(error Error: set INSTALL_PATH to use install) 102endif 103 104emit_tests: 105 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 106 BASENAME_TEST=`basename $$TEST`; \ 107 echo "$(COLLECTION):$$BASENAME_TEST"; \ 108 done 109 110# define if isn't already. It is undefined in make O= case. 111ifeq ($(RM),) 112RM := rm -f 113endif 114 115define CLEAN 116 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 117endef 118 119clean: 120 $(CLEAN) 121 122# When make O= with kselftest target from main level 123# the following aren't defined. 124# 125ifdef building_out_of_srctree 126LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 127COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 128LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 129endif 130 131# Selftest makefiles can override those targets by setting 132# OVERRIDE_TARGETS = 1. 133ifeq ($(OVERRIDE_TARGETS),) 134LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 135$(OUTPUT)/%:%.c $(LOCAL_HDRS) 136 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 137 138$(OUTPUT)/%.o:%.S 139 $(COMPILE.S) $^ -o $@ 140 141$(OUTPUT)/%:%.S 142 $(LINK.S) $^ $(LDLIBS) -o $@ 143endif 144 145.PHONY: run_tests all clean install emit_tests 146