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| author | Nicholas Fraser <nfraser@codeweavers.com> | 2021-02-10 22:17:25 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-02-18 22:41:40 +0300 |
| commit | 3027ce36ccbae74f2e7c1afbfc3f69fee0c2a996 (patch) | |
| tree | 9719f017f8d0d535258cf490ac3f095f83d0d87a /tools | |
| parent | 206236d328ee02b171188dfc961aa0d13943c76e (diff) | |
| download | linux-3027ce36ccbae74f2e7c1afbfc3f69fee0c2a996.tar.xz | |
perf buildid-cache: Don't skip 16-byte build-ids
lsdir_bid_tail_filter() ignored any build-id that wasn't exactly 20
bytes. This worked only for SHA-1 build-ids. The build-id for a PE file
is always a 16-byte GUID and ELF files can also have MD5 or UUID
build-ids.
This fix changes the filter to allow build-ids between 16 and 20 bytes.
Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Huw Davies <huw@codeweavers.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tommi Rantala <tommi.t.rantala@nokia.com>
Cc: Ulrich Czekalla <uczekalla@codeweavers.com>
Link: http://lore.kernel.org/lkml/597788e4-661d-633f-857c-3de700115d02@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/build-id.c | 5 | ||||
| -rw-r--r-- | tools/perf/util/build-id.h | 4 |
2 files changed, 6 insertions, 3 deletions
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index 02df36b30ac5..e32e8f2ff3bd 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -448,7 +448,8 @@ static bool lsdir_bid_tail_filter(const char *name __maybe_unused, int i = 0; while (isxdigit(d->d_name[i]) && i < SBUILD_ID_SIZE - 3) i++; - return (i == SBUILD_ID_SIZE - 3) && (d->d_name[i] == '\0'); + return (i >= SBUILD_ID_MIN_SIZE - 3) && (i <= SBUILD_ID_SIZE - 3) && + (d->d_name[i] == '\0'); } struct strlist *build_id_cache__list_all(bool validonly) @@ -490,7 +491,7 @@ struct strlist *build_id_cache__list_all(bool validonly) } strlist__for_each_entry(nd2, linklist) { if (snprintf(sbuild_id, SBUILD_ID_SIZE, "%s%s", - nd->s, nd2->s) != SBUILD_ID_SIZE - 1) + nd->s, nd2->s) > SBUILD_ID_SIZE - 1) goto err_out; if (validonly && !build_id_cache__valid_id(sbuild_id)) continue; diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h index 02613f4b2c29..c19617151670 100644 --- a/tools/perf/util/build-id.h +++ b/tools/perf/util/build-id.h @@ -2,8 +2,10 @@ #ifndef PERF_BUILD_ID_H_ #define PERF_BUILD_ID_H_ 1 -#define BUILD_ID_SIZE 20 +#define BUILD_ID_SIZE 20 /* SHA-1 length in bytes */ +#define BUILD_ID_MIN_SIZE 16 /* MD5/UUID/GUID length in bytes */ #define SBUILD_ID_SIZE (BUILD_ID_SIZE * 2 + 1) +#define SBUILD_ID_MIN_SIZE (BUILD_ID_MIN_SIZE * 2 + 1) #include "machine.h" #include "tool.h" |