diff options
| author | Masami Hiramatsu | 2016-07-12 19:05:18 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2016-07-13 23:09:07 -0300 |
| commit | 42bba263eb58800b6239a0cb35ac17fd29379277 (patch) | |
| tree | f0db0956443374d672e89f5c83f4ea1e39491557 /tools/perf/util/probe-file.h | |
| parent | 05bf2c8a2a819132b4a8f35d4315ff22e8e84a20 (diff) | |
perf probe: Allow wildcard for cached events
Allo glob wildcard for reusing cached/SDT events. E.g.
# perf probe -x /usr/lib64/libc-2.20.so -a %sdt_libc:\*
This example adds probes for all SDT in libc.
Note that the SDTs must have been scanned by perf buildid-cache.
Committer note:
Using it to check what of those SDT probes would take place when doing
a cargo run (rust):
# trace --no-sys --event sdt_libc:* cargo run
0.000 sdt_libc:setjmp:(7f326b69c4d1))
28.423 sdt_libc:setjmp:(7f4b0a5364d1))
29.000 sdt_libc:setjmp:(7f4b0a5364d1))
88.597 sdt_libc:setjmp:(7fc01fd414d1))
89.220 sdt_libc:setjmp:(7fc01fd414d1))
95.501 sdt_libc:setjmp:(7f326b69c4d1))
Running `target/debug/hello_world`
97.110 sdt_libc:setjmp:(7f95e09234d1))
Hello, world!
#
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/146831791813.17065.17846564230840594888.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-file.h')
| -rw-r--r-- | tools/perf/util/probe-file.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h index d513b346a70e..cafbe1d3f3bf 100644 --- a/tools/perf/util/probe-file.h +++ b/tools/perf/util/probe-file.h @@ -34,6 +34,9 @@ int probe_file__get_events(int fd, struct strfilter *filter, struct strlist *plist); int probe_file__del_strlist(int fd, struct strlist *namelist); +int probe_cache_entry__get_event(struct probe_cache_entry *entry, + struct probe_trace_event **tevs); + struct probe_cache *probe_cache__new(const char *target); int probe_cache__add_entry(struct probe_cache *pcache, struct perf_probe_event *pev, |