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Diffstat (limited to '')
| -rw-r--r-- | tools/testing/selftests/lib.mk | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk new file mode 100644 index 000000000..56e360e01 --- /dev/null +++ b/tools/testing/selftests/lib.mk @@ -0,0 +1,159 @@ +# This mimics the top-level Makefile. We do it explicitly here so that this +# Makefile can operate with or without the kbuild infrastructure. +ifneq ($(LLVM),) +CC := clang +else +CC := $(CROSS_COMPILE)gcc +endif + +ifeq (0,$(MAKELEVEL)) + ifeq ($(OUTPUT),) + OUTPUT := $(shell pwd) + DEFAULT_INSTALL_HDR_PATH := 1 + endif +endif +selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) + +# The following are built by lib.mk common compile rules. +# TEST_CUSTOM_PROGS should be used by tests that require +# custom build rule and prevent common build rule use. +# TEST_PROGS are for test shell scripts. +# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests +# and install targets. Common clean doesn't touch them. +TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) +TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) +TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) + +ifdef KSFT_KHDR_INSTALL +top_srcdir ?= ../../../.. +include $(top_srcdir)/scripts/subarch.include +ARCH ?= $(SUBARCH) + +# set default goal to all, so make without a target runs all, even when +# all isn't the first target in the file. +.DEFAULT_GOAL := all + +# Invoke headers install with --no-builtin-rules to avoid circular +# dependency in "make kselftest" case. In this case, second level +# make inherits builtin-rules which will use the rule generate +# Makefile.o and runs into +# "Circular Makefile.o <- prepare dependency dropped." +# and headers_install fails and test compile fails. +# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile +# invokes them as sub-makes and --no-builtin-rules is not necessary, +# but doesn't cause any failures. Keep it simple and use the same +# flags in both cases. +# Note that the support to install headers from lib.mk is necessary +# when test Makefile is run directly with "make -C". +# When local build is done, headers are installed in the default +# INSTALL_HDR_PATH usr/include. +.PHONY: khdr +.NOTPARALLEL: +khdr: +ifndef KSFT_KHDR_INSTALL_DONE +ifeq (1,$(DEFAULT_INSTALL_HDR_PATH)) + $(MAKE) --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install +else + $(MAKE) --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \ + ARCH=$(ARCH) -C $(top_srcdir) headers_install +endif +endif + +all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) +else +all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) +endif + +define RUN_TESTS + BASE_DIR="$(selfdir)"; \ + . $(selfdir)/kselftest/runner.sh; \ + if [ "X$(summary)" != "X" ]; then \ + per_test_logging=1; \ + fi; \ + run_many $(1) +endef + +run_tests: all +ifdef building_out_of_srctree + @if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \ + rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \ + fi + @if [ "X$(TEST_PROGS)" != "X" ]; then \ + $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \ + $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \ + else \ + $(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \ + fi +else + @$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS)) +endif + +define INSTALL_SINGLE_RULE + $(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)) + $(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/) +endef + +define INSTALL_RULE + $(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE) + $(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) + $(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE) + $(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE) + $(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE) + $(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE) + $(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE) +endef + +install: all +ifdef INSTALL_PATH + $(INSTALL_RULE) +else + $(error Error: set INSTALL_PATH to use install) +endif + +emit_tests: + for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \ + BASENAME_TEST=`basename $$TEST`; \ + echo "$(COLLECTION):$$BASENAME_TEST"; \ + done + +# define if isn't already. It is undefined in make O= case. +ifeq ($(RM),) +RM := rm -f +endif + +define CLEAN + $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) +endef + +clean: + $(CLEAN) + +# Enables to extend CFLAGS and LDFLAGS from command line, e.g. +# make USERCFLAGS=-Werror USERLDFLAGS=-static +CFLAGS += $(USERCFLAGS) +LDFLAGS += $(USERLDFLAGS) + +# When make O= with kselftest target from main level +# the following aren't defined. +# +ifdef building_out_of_srctree +LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) +COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c +LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) +endif + +# Selftest makefiles can override those targets by setting +# OVERRIDE_TARGETS = 1. +ifeq ($(OVERRIDE_TARGETS),) +LOCAL_HDRS := $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h +$(OUTPUT)/%:%.c $(LOCAL_HDRS) + $(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@ + +$(OUTPUT)/%.o:%.S + $(COMPILE.S) $^ -o $@ + +$(OUTPUT)/%:%.S + $(LINK.S) $^ $(LDLIBS) -o $@ +endif + +.PHONY: run_tests all clean install emit_tests |