Commit fd941521 authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf inject: Clarify build-id options a little bit 



Update the documentation of --build-id and --buildid-all options to
clarify the difference between them.  The former requires full sample
processing to find which DSOs are actually used.  While the latter simply
injects every DSO's build-id from MMAP{,2} records, skipping SAMPLEs.

Reviewed-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220923173142.805896-3-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent d031a00a

tools/perf/Documentation/perf-inject.txt

+4 −2
Original line number Diff line number Diff line
@@ -25,10 +25,12 @@ OPTIONS 
-------

-b::

--build-ids::

        Inject build-ids into the output stream

	Inject build-ids of DSOs hit by samples into the output stream.

	This means it needs to process all SAMPLE records to find the DSOs.



--buildid-all::

	Inject build-ids of all DSOs into the output stream

	Inject build-ids of all DSOs into the output stream regardless of hits

	and skip SAMPLE processing.



--known-build-ids=::

	Override build-ids to inject using these comma-separated pairs of