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=$$OUTPUT/usr \ 58 ARCH=$(ARCH) -C $(top_srcdir) headers_install 59endif 60endif 61 62all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 63else 64all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) 65endif 66 67define RUN_TESTS 68 BASE_DIR="$(selfdir)"; \ 69 . $(selfdir)/kselftest/runner.sh; \ 70 if [ "X$(summary)" != "X" ]; then \ 71 per_test_logging=1; \ 72 fi; \ 73 run_many $(1) 74endef 75 76run_tests: all 77ifdef building_out_of_srctree 78 @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ 79 rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ 80 fi 81 @if [ "X$(TEST_PROGS)" != "X" ]; then \ 82 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ 83 $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ 84 else \ 85 $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ 86 fi 87else 88 @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) 89endif 90 91define INSTALL_SINGLE_RULE 92 $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) 93 $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/) 94endef 95 96define INSTALL_RULE 97 $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) 98 $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 99 $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) 100 $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) 101 $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) 102 $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) 103 $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) 104 $(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE) 105endef 106 107install: all 108ifdef INSTALL_PATH 109 $(INSTALL_RULE) 110else 111 $(error Error: set INSTALL_PATH to use install) 112endif 113 114emit_tests: 115 for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ 116 BASENAME_TEST=`basename $$TEST`; \ 117 echo "$(COLLECTION):$$BASENAME_TEST"; \ 118 done 119 120# define if isn't already. It is undefined in make O= case. 121ifeq ($(RM),) 122RM := rm -f 123endif 124 125define CLEAN 126 $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) 127endef 128 129clean: 130 $(CLEAN) 131 132# When make O= with kselftest target from main level 133# the following aren't defined. 134# 135ifdef building_out_of_srctree 136LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 137COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c 138LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) 139endif 140 141# Selftest makefiles can override those targets by setting 142# OVERRIDE_TARGETS = 1. 143ifeq ($(OVERRIDE_TARGETS),) 144LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h 145$(OUTPUT)/%:%.c $(LOCAL_HDRS) 146 $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ 147 148$(OUTPUT)/%.o:%.S 149 $(COMPILE.S) $^ -o $@ 150 151$(OUTPUT)/%:%.S 152 $(LINK.S) $^ $(LDLIBS) -o $@ 153endif 154 155.PHONY: run_tests all clean install emit_tests 156