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)))) 43 44# The following are built by lib.mk common compile rules. 45# TEST_CUSTOM_PROGS should be used by tests that require 46# custom build rule and prevent common build rule use. 47# TEST_PROGS are for test shell scripts. 48# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests 49# and install targets. Common clean doesn't touch them. 50TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 51TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 52TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 53 54all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 55 56define RUN_TESTS 57 BASE_DIR="$(selfdir)"; \ 58 . $(selfdir)/kselftest/runner.sh; \ 59 if [ "X$(summary)" != "X" ]; then \ 60 per_test_logging=1; \ 61 fi; \ 62 run_many $(1) 63endef 64 65run_tests: all 66ifdef building_out_of_srctree 67 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ 68 rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ 69 fi 70 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 71 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 72 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 73 else \ 74 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 75 fi 76else 77 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 78endif 79 80define INSTALL_SINGLE_RULE 81 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 82 $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/) 83endef 84 85define INSTALL_RULE 86 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 87 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 88 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 89 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 90 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 91 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 92 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 93 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 94endef 95 96install: all 97ifdef INSTALL_PATH 98 $(INSTALL_RULE) 99else 100 $(error Error: set INSTALL_PATH to use install) 101endif 102 103emit_tests: 104 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 105 BASENAME_TEST=`basename $$TEST`; \ 106 echo "$(COLLECTION):$$BASENAME_TEST"; \ 107 done 108 109# define if isn't already. It is undefined in make O= case. 110ifeq ($(RM),) 111RM := rm -f 112endif 113 114define CLEAN 115 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 116endef 117 118clean: 119 $(CLEAN) 120 121# When make O= with kselftest target from main level 122# the following aren't defined. 123# 124ifdef building_out_of_srctree 125LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 126COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 127LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 128endif 129 130# Selftest makefiles can override those targets by setting 131# OVERRIDE_TARGETS = 1. 132ifeq ($(OVERRIDE_TARGETS),) 133LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 134$(OUTPUT)/%:%.c $(LOCAL_HDRS) 135 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 136 137$(OUTPUT)/%.o:%.S 138 $(COMPILE.S) $^ -o $@ 139 140$(OUTPUT)/%:%.S 141 $(LINK.S) $^ $(LDLIBS) -o $@ 142endif 143 144.PHONY: run_tests all clean install emit_tests 145