linux_dsm_epyc7002/tools/testing/selftests/lib.mk
Shuah Khan 8ce72dc325 selftests: fix headers_install circular dependency
"make kselftest" fails with "Circular Makefile.o <- prepare dependency
dropped." error, when lib.mk invokes "make headers_install".

Make level 0: Main make calls selftests run_tests target
...
Make level n: selftests lib.mk invokes main make's headers_install

The secondary level make inherits builtin-rules which will use the rule
to generate Makefile.o  and runs into "Circular Makefile.o <- prepare
dependency dropped." error, and kselftest compile fails.

Invoke headers_install target with --no-builtin-rules to avoid circular
error.

In addition, lib.mk installs headers in the default HDR_PATH, even when
build relocation is requested with O= or export KBUILD_OUTPUT. Fix the
problem by passing in INSTALL_HDR_PATH. The headers are installed under
the specified output "dir/usr".

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-04-19 17:15:27 -06:00

196 lines
6.5 KiB
Makefile

# This mimics the top-level Makefile. We do it explicitly here so that this
# Makefile can operate with or without the kbuild infrastructure.
CC := $(CROSS_COMPILE)gcc
ifeq (0,$(MAKELEVEL))
ifneq ($(O),)
OUTPUT := $(O)
else
ifneq ($(KBUILD_OUTPUT),)
OUTPUT := $(KBUILD_OUTPUT)
else
OUTPUT := $(shell pwd)
DEFAULT_INSTALL_HDR_PATH := 1
endif
endif
endif
# 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 ?= $(SUBARCH)
# set default goal to all, so make without a target runs all, even when
# all isn't the first target in the file.
.DEFAULT_GOAL := all
# Invoke headers install with --no-builtin-rules to avoid circular
# dependency in "make kselftest" case. In this case, second level
# make inherits builtin-rules which will use the rule generate
# Makefile.o and runs into
# "Circular Makefile.o <- prepare dependency dropped."
# and headers_install fails and test compile fails.
# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile
# invokes them as sub-makes and --no-builtin-rules is not necessary,
# but doesn't cause any failures. Keep it simple and use the same
# flags in both cases.
# Note that the support to install headers from lib.mk is necessary
# when test Makefile is run directly with "make -C".
# When local build is done, headers are installed in the default
# INSTALL_HDR_PATH usr/include.
.PHONY: khdr
khdr:
ifndef KSFT_KHDR_INSTALL_DONE
ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
make --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
else
make --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
ARCH=$(ARCH) -C $(top_srcdir) headers_install
endif
endif
all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
else
all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
endif
.ONESHELL:
define RUN_TEST_PRINT_RESULT
TEST_HDR_MSG="selftests: "`basename $$PWD`:" $$BASENAME_TEST"; \
echo $$TEST_HDR_MSG; \
echo "========================================"; \
if [ ! -x $$TEST ]; then \
echo "$$TEST_HDR_MSG: Warning: file $$BASENAME_TEST is not executable, correct this.";\
echo "not ok 1..$$test_num $$TEST_HDR_MSG [FAIL]"; \
else \
cd `dirname $$TEST` > /dev/null; \
if [ "X$(summary)" != "X" ]; then \
(./$$BASENAME_TEST > /tmp/$$BASENAME_TEST 2>&1 && \
echo "ok 1..$$test_num $$TEST_HDR_MSG [PASS]") || \
(if [ $$? -eq $$skip ]; then \
echo "not ok 1..$$test_num $$TEST_HDR_MSG [SKIP]"; \
else echo "not ok 1..$$test_num $$TEST_HDR_MSG [FAIL]"; \
fi;) \
else \
(./$$BASENAME_TEST && \
echo "ok 1..$$test_num $$TEST_HDR_MSG [PASS]") || \
(if [ $$? -eq $$skip ]; then \
echo "not ok 1..$$test_num $$TEST_HDR_MSG [SKIP]"; \
else echo "not ok 1..$$test_num $$TEST_HDR_MSG [FAIL]"; \
fi;) \
fi; \
cd - > /dev/null; \
fi;
endef
define RUN_TESTS
@export KSFT_TAP_LEVEL=`echo 1`; \
test_num=`echo 0`; \
skip=`echo 4`; \
echo "TAP version 13"; \
for TEST in $(1); do \
BASENAME_TEST=`basename $$TEST`; \
test_num=`echo $$test_num+1 | bc`; \
$(call RUN_TEST_PRINT_RESULT,$(TEST),$(BASENAME_TEST),$(test_num),$(skip)) \
done;
endef
run_tests: all
ifneq ($(KBUILD_SRC),)
@if [ "X$(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)" != "X" ]; then
@rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT)
fi
@if [ "X$(TEST_PROGS)" != "X" ]; then
$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS))
else
$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS))
fi
else
$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
endif
define INSTALL_RULE
@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \
mkdir -p ${INSTALL_PATH}; \
echo "rsync -a $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/"; \
rsync -a $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/; \
fi
@if [ "X$(TEST_GEN_PROGS)$(TEST_CUSTOM_PROGS)$(TEST_GEN_PROGS_EXTENDED)$(TEST_GEN_FILES)" != "X" ]; then \
mkdir -p ${INSTALL_PATH}; \
echo "rsync -a $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/"; \
rsync -a $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/; \
fi
endef
install: all
ifdef INSTALL_PATH
$(INSTALL_RULE)
else
$(error Error: set INSTALL_PATH to use install)
endif
define EMIT_TESTS
@test_num=`echo 0`; \
for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
BASENAME_TEST=`basename $$TEST`; \
test_num=`echo $$test_num+1 | bc`; \
TEST_HDR_MSG="selftests: "`basename $$PWD`:" $$BASENAME_TEST"; \
echo "echo $$TEST_HDR_MSG"; \
if [ ! -x $$TEST ]; then \
echo "echo \"$$TEST_HDR_MSG: Warning: file $$BASENAME_TEST is not executable, correct this.\""; \
echo "echo \"not ok 1..$$test_num $$TEST_HDR_MSG [FAIL]\""; \
else
echo "(./$$BASENAME_TEST >> \$$OUTPUT 2>&1 && echo \"ok 1..$$test_num $$TEST_HDR_MSG [PASS]\") || (if [ \$$? -eq \$$skip ]; then echo \"not ok 1..$$test_num $$TEST_HDR_MSG [SKIP]\"; else echo \"not ok 1..$$test_num $$TEST_HDR_MSG [FAIL]\"; fi;)"; \
fi; \
done;
endef
emit_tests:
$(EMIT_TESTS)
# define if isn't already. It is undefined in make O= case.
ifeq ($(RM),)
RM := rm -f
endif
define CLEAN
$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
endef
clean:
$(CLEAN)
# When make O= with kselftest target from main level
# the following aren't defined.
#
ifneq ($(KBUILD_SRC),)
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),)
$(OUTPUT)/%:%.c
$(LINK.c) $^ $(LDLIBS) -o $@
$(OUTPUT)/%.o:%.S
$(COMPILE.S) $^ -o $@
$(OUTPUT)/%:%.S
$(LINK.S) $^ $(LDLIBS) -o $@
endif
.PHONY: run_tests all clean install emit_tests