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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-18 07:26:46 +07:00
c363eb48ad
With some shells, the command construed for install of bpf selftests becomes too large due to long list of files: make[1]: execvp: /bin/sh: Argument list too long make[1]: *** [../lib.mk:73: install] Error 127 Currently, each of the file lists is replicated three times in the command: in the shell 'if' condition, in the 'echo' and in the 'rsync'. Reduce that by one instance by using make conditionals and separate the echo and rsync into two shell commands. (One would be inclined to just remove the '@' at the beginning of the rsync command and let 'make' echo it by itself; unfortunately, it appears that the '@' in the front of mkdir silences output also for the following commands.) Also, separate handling of each of the lists to its own shell command. The semantics of the makefile is unchanged before and after the patch. The ability of individual test directories to override INSTALL_RULE is retained. Reported-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Tested-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com> Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
151 lines
4.8 KiB
Makefile
151 lines
4.8 KiB
Makefile
# This mimics the top-level Makefile. We do it explicitly here so that this
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# Makefile can operate with or without the kbuild infrastructure.
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CC := $(CROSS_COMPILE)gcc
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ifeq (0,$(MAKELEVEL))
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ifeq ($(OUTPUT),)
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OUTPUT := $(shell pwd)
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DEFAULT_INSTALL_HDR_PATH := 1
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endif
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endif
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selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
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# The following are built by lib.mk common compile rules.
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# TEST_CUSTOM_PROGS should be used by tests that require
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# custom build rule and prevent common build rule use.
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# TEST_PROGS are for test shell scripts.
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# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
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# and install targets. Common clean doesn't touch them.
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TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
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TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
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TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
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ifdef KSFT_KHDR_INSTALL
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top_srcdir ?= ../../../..
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include $(top_srcdir)/scripts/subarch.include
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ARCH ?= $(SUBARCH)
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# set default goal to all, so make without a target runs all, even when
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# all isn't the first target in the file.
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.DEFAULT_GOAL := all
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# Invoke headers install with --no-builtin-rules to avoid circular
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# dependency in "make kselftest" case. In this case, second level
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# make inherits builtin-rules which will use the rule generate
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# Makefile.o and runs into
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# "Circular Makefile.o <- prepare dependency dropped."
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# and headers_install fails and test compile fails.
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# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile
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# invokes them as sub-makes and --no-builtin-rules is not necessary,
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# but doesn't cause any failures. Keep it simple and use the same
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# flags in both cases.
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# Note that the support to install headers from lib.mk is necessary
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# when test Makefile is run directly with "make -C".
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# When local build is done, headers are installed in the default
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# INSTALL_HDR_PATH usr/include.
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.PHONY: khdr
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khdr:
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ifndef KSFT_KHDR_INSTALL_DONE
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ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
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make --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
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else
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make --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
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ARCH=$(ARCH) -C $(top_srcdir) headers_install
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endif
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endif
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all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
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else
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all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
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endif
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.ONESHELL:
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define RUN_TESTS
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@BASE_DIR="$(selfdir)"; \
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. $(selfdir)/kselftest/runner.sh; \
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if [ "X$(summary)" != "X" ]; then \
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per_test_logging=1; \
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fi; \
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run_many $(1)
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endef
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run_tests: all
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ifdef building_out_of_srctree
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@if [ "X$(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)" != "X" ]; then
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@rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT)
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fi
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@if [ "X$(TEST_PROGS)" != "X" ]; then
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$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS))
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else
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$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS))
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fi
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else
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$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
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endif
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define INSTALL_SINGLE_RULE
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$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
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$(if $(INSTALL_LIST),@echo rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/)
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$(if $(INSTALL_LIST),@rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/)
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endef
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define INSTALL_RULE
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$(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
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$(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
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endef
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install: all
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ifdef INSTALL_PATH
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$(INSTALL_RULE)
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else
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$(error Error: set INSTALL_PATH to use install)
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endif
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emit_tests:
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for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
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BASENAME_TEST=`basename $$TEST`; \
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echo " \\"; \
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echo -n " \"$$BASENAME_TEST\""; \
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done; \
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# define if isn't already. It is undefined in make O= case.
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ifeq ($(RM),)
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RM := rm -f
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endif
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define CLEAN
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$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
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endef
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clean:
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$(CLEAN)
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# When make O= with kselftest target from main level
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# the following aren't defined.
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#
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ifdef building_out_of_srctree
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LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
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COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
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LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
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endif
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# Selftest makefiles can override those targets by setting
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# OVERRIDE_TARGETS = 1.
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ifeq ($(OVERRIDE_TARGETS),)
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$(OUTPUT)/%:%.c
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$(LINK.c) $^ $(LDLIBS) -o $@
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$(OUTPUT)/%.o:%.S
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$(COMPILE.S) $^ -o $@
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$(OUTPUT)/%:%.S
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$(LINK.S) $^ $(LDLIBS) -o $@
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endif
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.PHONY: run_tests all clean install emit_tests
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