diff options
| author | Vincent Whitchurch <[email protected]> | 2023-06-30 11:11:48 +0200 |
|---|---|---|
| committer | Namhyung Kim <[email protected]> | 2023-07-01 11:12:22 -0700 |
| commit | 5f06267b6e6a10dd0cac4eb248fcc51f18c260cc (patch) | |
| tree | 6ea70dfb269785290e5c4cd7fbe9799a90a5b377 | |
| parent | 78a175c4623f66722709494295a0f6754b46f858 (diff) | |
perf: unwind: Fix symfs with libdw
Pass the full path including the symfs (if any) to libdw. Without this
unwinding fails with errors like this when a symfs is used:
unwind: failed with 'No such file or directory'"
Signed-off-by: Vincent Whitchurch <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: [email protected]
Cc: Ian Rogers <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
| -rw-r--r-- | tools/perf/util/unwind-libdw.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c index 83eea968482e..2a96df4c8d42 100644 --- a/tools/perf/util/unwind-libdw.c +++ b/tools/perf/util/unwind-libdw.c @@ -66,9 +66,13 @@ static int __report_module(struct addr_location *al, u64 ip, mod = 0; } - if (!mod) - mod = dwfl_report_elf(ui->dwfl, dso->short_name, dso->long_name, -1, + if (!mod) { + char filename[PATH_MAX]; + + __symbol__join_symfs(filename, sizeof(filename), dso->long_name); + mod = dwfl_report_elf(ui->dwfl, dso->short_name, filename, -1, map__start(al->map) - map__pgoff(al->map), false); + } if (!mod) { char filename[PATH_MAX]; |