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 10CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) 11else 12CC := $(CROSS_COMPILE)gcc 13endif 14 15ifeq (0,$(MAKELEVEL)) 16 ifeq ($(OUTPUT),) 17 OUTPUT := $(shell pwd) 18 DEFAULT_INSTALL_HDR_PATH := 1 19 endif 20endif 21selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) 22 23# The following are built by lib.mk common compile rules. 24# TEST_CUSTOM_PROGS should be used by tests that require 25# custom build rule and prevent common build rule use. 26# TEST_PROGS are for test shell scripts. 27# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests 28# and install targets. Common clean doesn't touch them. 29TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) 30TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) 31TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) 32 33ifdef KSFT_KHDR_INSTALL 34top_srcdir ?= ../../../.. 35include $(top_srcdir)/scripts/subarch.include 36ARCH ?= $(SUBARCH) 37 38# set default goal to all, so make without a target runs all, even when 39# all isn't the first target in the file. 40.DEFAULT_GOAL := all 41 42# Invoke headers install with --no-builtin-rules to avoid circular 43# dependency in "make kselftest" case. In this case, second level 44# make inherits builtin-rules which will use the rule generate 45# Makefile.o and runs into 46# "Circular Makefile.o <- prepare dependency dropped." 47# and headers_install fails and test compile fails. 48# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile 49# invokes them as sub-makes and --no-builtin-rules is not necessary, 50# but doesn't cause any failures. Keep it simple and use the same 51# flags in both cases. 52# Note that the support to install headers from lib.mk is necessary 53# when test Makefile is run directly with "make -C". 54# When local build is done, headers are installed in the default 55# INSTALL_HDR_PATH usr/include. 56.PHONY: khdr 57.NOTPARALLEL: 58khdr: 59ifndef KSFT_KHDR_INSTALL_DONE 60ifeq (1,$(DEFAULT_INSTALL_HDR_PATH)) 61 $(MAKE) --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install 62else 63 $(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \ 64 ARCH=$(ARCH) -C $(top_srcdir) headers_install 65endif 66endif 67 68all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 69else 70all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 71endif 72 73define RUN_TESTS 74 BASE_DIR="$(selfdir)"; \ 75 . $(selfdir)/kselftest/runner.sh; \ 76 if [ "X$(summary)" != "X" ]; then \ 77 per_test_logging=1; \ 78 fi; \ 79 run_many $(1) 80endef 81 82run_tests: all 83ifdef building_out_of_srctree 84 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ 85 rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ 86 fi 87 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 88 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 89 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 90 else \ 91 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 92 fi 93else 94 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 95endif 96 97define INSTALL_SINGLE_RULE 98 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 99 $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/) 100endef 101 102define INSTALL_RULE 103 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 104 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 105 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 106 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 107 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 108 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 109 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 110 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 111endef 112 113install: all 114ifdef INSTALL_PATH 115 $(INSTALL_RULE) 116else 117 $(error Error: set INSTALL_PATH to use install) 118endif 119 120emit_tests: 121 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 122 BASENAME_TEST=`basename $$TEST`; \ 123 echo "$(COLLECTION):$$BASENAME_TEST"; \ 124 done 125 126# define if isn't already. It is undefined in make O= case. 127ifeq ($(RM),) 128RM := rm -f 129endif 130 131define CLEAN 132 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 133endef 134 135clean: 136 $(CLEAN) 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),) 150LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 151$(OUTPUT)/%:%.c $(LOCAL_HDRS) 152 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 153 154$(OUTPUT)/%.o:%.S 155 $(COMPILE.S) $^ -o $@ 156 157$(OUTPUT)/%:%.S 158 $(LINK.S) $^ $(LDLIBS) -o $@ 159endif 160 161.PHONY: run_tests all clean install emit_tests 162