perf tools: Add support to read build id from compressed elf
authorJiri Olsa <jolsa@kernel.org>
Mon, 14 Dec 2020 10:54:48 +0000 (11:54 +0100)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 17 Dec 2020 17:36:17 +0000 (14:36 -0300)
commit47dce51acc330eefef5ea876f7707585b402282a
treeacb2380bb07d781b8b4c5d82c67638ec63efe47e
parent8abceacff87d2fbb8e50e841d410e4808725151b
perf tools: Add support to read build id from compressed elf

Adding support to decompress file before reading build id.

Adding filename__read_build_id and change its current versions to
read_build_id.

Shutting down stderr output of perf list in the shell test:
  82: Check open filename arg using perf trace + vfs_getname          : Ok

because with decompression code in the place we the
filename__read_build_id function is more verbose in case
of error and the test did not account for that.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20201214105457.543111-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/tests/shell/trace+probe_vfs_getname.sh
tools/perf/util/symbol-elf.c