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| author | Denys Zagorui <dzagorui@cisco.com> | 2021-05-24 04:15:14 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-05-27 13:55:28 -0300 |
| commit | 6793672accf380f895b2dc39eff90c7f0cc99fb6 (patch) | |
| tree | d783604243f033f7989edaa19796a0bbe7f19f38 /tools/perf/Makefile.config | |
| parent | f7fc0d1c915a74ff24acafec31651712f194c19f (diff) | |
| download | lwn-6793672accf380f895b2dc39eff90c7f0cc99fb6.tar.gz lwn-6793672accf380f895b2dc39eff90c7f0cc99fb6.zip | |
perf parse-events: Add bison --file-prefix-map option
During a perf build with O= bison stores full paths in generated files
and those paths are stored in resulting perf binary.
Starting from bison v3.7.1 those paths can be remapped by using the
--file-prefix-map option. Use this option if possible to make perf
binary more reproducible.
Signed-off-by: Denys Zagorui <dzagorui@cisco.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210524111514.65713-3-dzagorui@cisco.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.config')
| -rw-r--r-- | tools/perf/Makefile.config | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 829e0498bd51..a62d09808fef 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -202,6 +202,12 @@ ifeq ($(call get-executable,$(BISON)),) dummy := $(error Error: $(BISON) is missing on this system, please install it) endif +ifneq ($(OUTPUT),) + ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1) + BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)= + endif +endif + # Treat warnings as errors unless directed not to ifneq ($(WERROR),0) CORE_CFLAGS += -Werror @@ -1228,6 +1234,9 @@ $(call detected_var,LIBDIR) $(call detected_var,GTK_CFLAGS) $(call detected_var,PERL_EMBED_CCOPTS) $(call detected_var,PYTHON_EMBED_CCOPTS) +ifneq ($(BISON_FILE_PREFIX_MAP),) +$(call detected_var,BISON_FILE_PREFIX_MAP) +endif # re-generate FEATURE-DUMP as we may have called feature_check, found out # extra libraries to add to LDFLAGS of some other test and then redo those |