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