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8135c8c750
Replace strong binding of FEATURE_TESTS and FEATURE_DISPLAY by weak binding. This patch enables other makefiles which include tools/build/Makefile.feature enable only limited feathres to check. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: pi3orama@163.com Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/r/1431860222-61636-5-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
172 lines
4.5 KiB
Gherkin
172 lines
4.5 KiB
Gherkin
feature_dir := $(srctree)/tools/build/feature
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ifneq ($(OUTPUT),)
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OUTPUT_FEATURES = $(OUTPUT)feature/
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$(shell mkdir -p $(OUTPUT_FEATURES))
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endif
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feature_check = $(eval $(feature_check_code))
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define feature_check_code
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feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
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endef
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feature_set = $(eval $(feature_set_code))
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define feature_set_code
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feature-$(1) := 1
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endef
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#
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# Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
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#
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#
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# Note that this is not a complete list of all feature tests, just
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# those that are typically built on a fully configured system.
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#
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# [ Feature tests not mentioned here have to be built explicitly in
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# the rule that uses them - an example for that is the 'bionic'
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# feature check. ]
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#
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FEATURE_TESTS ?= \
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backtrace \
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dwarf \
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fortify-source \
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sync-compare-and-swap \
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glibc \
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gtk2 \
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gtk2-infobar \
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libaudit \
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libbfd \
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libelf \
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libelf-getphdrnum \
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libelf-mmap \
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libnuma \
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libperl \
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libpython \
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libpython-version \
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libslang \
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libunwind \
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pthread-attr-setaffinity-np \
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stackprotector-all \
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timerfd \
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libdw-dwarf-unwind \
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zlib \
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lzma
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FEATURE_DISPLAY ?= \
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dwarf \
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glibc \
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gtk2 \
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libaudit \
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libbfd \
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libelf \
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libnuma \
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libperl \
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libpython \
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libslang \
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libunwind \
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libdw-dwarf-unwind \
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zlib \
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lzma
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# Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features.
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# If in the future we need per-feature checks/flags for features not
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# mentioned in this list we need to refactor this ;-).
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set_test_all_flags = $(eval $(set_test_all_flags_code))
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define set_test_all_flags_code
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FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1))
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FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
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endef
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$(foreach feat,$(FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
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#
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# Special fast-path for the 'all features are available' case:
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#
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$(call feature_check,all,$(MSG))
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#
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# Just in case the build freshly failed, make sure we print the
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# feature matrix:
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#
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ifeq ($(feature-all), 1)
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#
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# test-all.c passed - just set all the core feature flags to 1:
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#
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$(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat)))
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else
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$(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -i -j -C $(feature_dir) $(addsuffix .bin,$(FEATURE_TESTS)) >/dev/null 2>&1)
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$(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
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endif
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#
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# Print the result of the feature test:
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#
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feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
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define feature_print_status_code
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ifeq ($(feature-$(1)), 1)
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MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
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else
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MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
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endif
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endef
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feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
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define feature_print_text_code
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MSG = $(shell printf '...%30s: %s' $(1) $(2))
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endef
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FEATURE_DUMP := $(foreach feat,$(FEATURE_DISPLAY),feature-$(feat)($(feature-$(feat))))
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FEATURE_DUMP_FILE := $(shell touch $(OUTPUT)FEATURE-DUMP; cat $(OUTPUT)FEATURE-DUMP)
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ifeq ($(dwarf-post-unwind),1)
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FEATURE_DUMP += dwarf-post-unwind($(dwarf-post-unwind-text))
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endif
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# The $(feature_display) controls the default detection message
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# output. It's set if:
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# - detected features differes from stored features from
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# last build (in FEATURE-DUMP file)
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# - one of the $(FEATURE_DISPLAY) is not detected
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# - VF is enabled
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ifneq ("$(FEATURE_DUMP)","$(FEATURE_DUMP_FILE)")
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$(shell echo "$(FEATURE_DUMP)" > $(OUTPUT)FEATURE-DUMP)
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feature_display := 1
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endif
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feature_display_check = $(eval $(feature_check_code))
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define feature_display_check_code
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ifneq ($(feature-$(1)), 1)
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feature_display := 1
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endif
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endef
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$(foreach feat,$(FEATURE_DISPLAY),$(call feature_display_check,$(feat)))
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ifeq ($(VF),1)
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feature_display := 1
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feature_verbose := 1
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endif
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ifeq ($(feature_display),1)
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$(info )
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$(info Auto-detecting system features:)
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$(foreach feat,$(FEATURE_DISPLAY),$(call feature_print_status,$(feat),))
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ifeq ($(dwarf-post-unwind),1)
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$(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
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endif
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ifneq ($(feature_verbose),1)
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$(info )
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endif
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endif
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ifeq ($(feature_verbose),1)
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TMP := $(filter-out $(FEATURE_DISPLAY),$(FEATURE_TESTS))
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$(foreach feat,$(TMP),$(call feature_print_status,$(feat),))
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$(info )
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endif
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