diff options
| author | Franck Bui-Huu <fbuihuu@gmail.com> | 2010-12-23 16:04:23 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-12-27 22:48:21 +0100 |
| commit | 32ae2ade462146729580117d9886cc9efd83dfbe (patch) | |
| tree | 5fe588212404ceb31ca829c275030104e7346b76 /tools | |
| parent | perf script: Fix event ordering settings to work with older kernels (diff) | |
| download | linux-32ae2ade462146729580117d9886cc9efd83dfbe.tar.xz linux-32ae2ade462146729580117d9886cc9efd83dfbe.zip | |
perf probe: Fix short file name probe location reporting
After adding probes, perf-probe(1) reports the probes locations which include
filenames for certain cases.
But for short file names (whose length < 32), perf-probe didn't display the
name correctly. It actually skipped the first character.
Here's an example where 'icmp.c' was screwed:
$ perf probe -n -a "icmp.c;sk=*"
Add new events:
probe:icmp_push_reply (on @cmp.c)
probe:icmp_reply (on @cmp.c)
probe:icmp_reply_1 (on @cmp.c)
probe:icmp_send (on @cmp.c)
probe:icmp_send_1 (on @cmp.c)
probe:icmp_error (on @cmp.c)
probe:icmp_error_1 (on @cmp.c)
probe:icmp_error_2 (on @cmp.c)
probe:icmp_error_3 (on @cmp.c)
This patch fixes this bug in synthesize_perf_probe_point().
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
LKML-Reference: <m31v588r9k.fsf@gmail.com>
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/probe-event.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 4bde988a0b04..d3af30d62880 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -1068,13 +1068,13 @@ static char *synthesize_perf_probe_point(struct perf_probe_point *pp) goto error; } if (pp->file) { - len = strlen(pp->file) - 31; - if (len < 0) - len = 0; - tmp = strchr(pp->file + len, '/'); - if (!tmp) - tmp = pp->file + len; - ret = e_snprintf(file, 32, "@%s", tmp + 1); + tmp = pp->file; + len = strlen(tmp); + if (len > 30) { + tmp = strchr(pp->file + len - 30, '/'); + tmp = tmp ? tmp + 1 : pp->file + len - 30; + } + ret = e_snprintf(file, 32, "@%s", tmp); if (ret <= 0) goto error; } |