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),) 4CC := clang 5else 6CC := $(CROSS_COMPILE)gcc 7endif 8 9ifeq (0,$(MAKELEVEL)) 10 ifeq ($(OUTPUT),) 11 OUTPUT := $(shell pwd) 12 DEFAULT_INSTALL_HDR_PATH := 1 13 endif 14endif 15selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) 16 17# The following are built by lib.mk common compile rules. 18# TEST_CUSTOM_PROGS should be used by tests that require 19# custom build rule and prevent common build rule use. 20# TEST_PROGS are for test shell scripts. 21# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests 22# and install targets. Common clean doesn't touch them. 23TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 24TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 25TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 26 27ifdef KSFT_KHDR_INSTALL 28top_srcdir ?= ../../../.. 29include $(top_srcdir)/scripts/subarch.include 30ARCH ?= $(SUBARCH) 31 32# set default goal to all, so make without a target runs all, even when 33# all isn't the first target in the file. 34.DEFAULT_GOAL := all 35 36# Invoke headers install with --no-builtin-rules to avoid circular 37# dependency in "make kselftest" case. In this case, second level 38# make inherits builtin-rules which will use the rule generate 39# Makefile.o and runs into 40# "Circular Makefile.o <- prepare dependency dropped." 41# and headers_install fails and test compile fails. 42# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile 43# invokes them as sub-makes and --no-builtin-rules is not necessary, 44# but doesn't cause any failures. Keep it simple and use the same 45# flags in both cases. 46# Note that the support to install headers from lib.mk is necessary 47# when test Makefile is run directly with "make -C". 48# When local build is done, headers are installed in the default 49# INSTALL_HDR_PATH usr/include. 50.PHONY: khdr 51.NOTPARALLEL: 52khdr: 53ifndef KSFT_KHDR_INSTALL_DONE 54ifeq (1,$(DEFAULT_INSTALL_HDR_PATH)) 55 make --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install 56else 57 make --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \ 58 ARCH=$(ARCH) -C $(top_srcdir) headers_install 59endif 60endif 61 62all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 63else 64all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 65endif 66 67.ONESHELL: 68define RUN_TESTS 69 @BASE_DIR="$(selfdir)"; \ 70 . $(selfdir)/kselftest/runner.sh; \ 71 if [ "X$(summary)" != "X" ]; then \ 72 per_test_logging=1; \ 73 fi; \ 74 run_many $(1) 75endef 76 77run_tests: all 78ifdef building_out_of_srctree 79 @if [ "X$(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)" != "X" ]; then 80 @rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT) 81 fi 82 @if [ "X$(TEST_PROGS)" != "X" ]; then 83 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS)) 84 else 85 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)) 86 fi 87else 88 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 89endif 90 91define INSTALL_SINGLE_RULE 92 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 93 $(if $(INSTALL_LIST),@echo rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/) 94 $(if $(INSTALL_LIST),@rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/) 95endef 96 97define INSTALL_RULE 98 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 99 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 100 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 101 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 102 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 103 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 104 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 105endef 106 107install: all 108ifdef INSTALL_PATH 109 $(INSTALL_RULE) 110else 111 $(error Error: set INSTALL_PATH to use install) 112endif 113 114emit_tests: 115 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 116 BASENAME_TEST=`basename $$TEST`; \ 117 echo " \\"; \ 118 echo -n " \"$$BASENAME_TEST\""; \ 119 done; \ 120 121# define if isn't already. It is undefined in make O= case. 122ifeq ($(RM),) 123RM := rm -f 124endif 125 126define CLEAN 127 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 128endef 129 130clean: 131 $(CLEAN) 132 133# Enables to extend CFLAGS and LDFLAGS from command line, e.g. 134# make USERCFLAGS=-Werror USERLDFLAGS=-static 135CFLAGS += $(USERCFLAGS) 136LDFLAGS += $(USERLDFLAGS) 137 138# When make O= with kselftest target from main level 139# the following aren't defined. 140# 141ifdef building_out_of_srctree 142LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 143COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 144LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 145endif 146 147# Selftest makefiles can override those targets by setting 148# OVERRIDE_TARGETS = 1. 149ifeq ($(OVERRIDE_TARGETS),) 150$(OUTPUT)/%:%.c 151 $(LINK.c) $^ $(LDLIBS) -o $@ 152 153$(OUTPUT)/%.o:%.S 154 $(COMPILE.S) $^ -o $@ 155 156$(OUTPUT)/%:%.S 157 $(LINK.S) $^ $(LDLIBS) -o $@ 158endif 159 160.PHONY: run_tests all clean install emit_tests 161