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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2014-06-06 11:14:06 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-06-10 17:02:06 +0400 |
| commit | 5ee05b8801892ecc5df44e03429008dfa89aa361 (patch) | |
| tree | 4eb394e88cba9b0ce07279f0c0ed085b0b3980d2 /tools | |
| parent | 69e96eaa4fef04ad543eda3eab787dbae99d8912 (diff) | |
| download | linux-5ee05b8801892ecc5df44e03429008dfa89aa361.tar.xz | |
perf probe: Improve error messages in --line option
Improve error messages of 'perf probe --line' mode.
Currently 'perf probe' shows the "Debuginfo analysis failed" message with
an error code when the given symbol is not found:
-----
# perf probe -L page_cgroup_init_flatmem
Debuginfo analysis failed. (-2)
Error: Failed to show lines.
-----
But -2 (-ENOENT) means that the given source line or function was not
found. With this patch, 'perf probe' shows the correct error message:
-----
# perf probe -L page_cgroup_init_flatmem
Specified source line is not found.
Error: Failed to show lines.
-----
There is also another debug error code is shown in the same function
after get_real_path(). This removes that too.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20140606071406.6788.47850.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/probe-event.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 44c71417262f..9a0a1839a377 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -628,11 +628,11 @@ static int __show_line_range(struct line_range *lr, const char *module) ret = debuginfo__find_line_range(dinfo, lr); debuginfo__delete(dinfo); - if (ret == 0) { + if (ret == 0 || ret == -ENOENT) { pr_warning("Specified source line is not found.\n"); return -ENOENT; } else if (ret < 0) { - pr_warning("Debuginfo analysis failed. (%d)\n", ret); + pr_warning("Debuginfo analysis failed.\n"); return ret; } @@ -641,7 +641,7 @@ static int __show_line_range(struct line_range *lr, const char *module) ret = get_real_path(tmp, lr->comp_dir, &lr->path); free(tmp); /* Free old path */ if (ret < 0) { - pr_warning("Failed to find source file. (%d)\n", ret); + pr_warning("Failed to find source file path.\n"); return ret; } |