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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2016-06-15 06:28:40 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-06-15 20:34:42 +0300 |
| commit | 2fd457a34525ea3bc609e377b46af759af8a7934 (patch) | |
| tree | 130c83a2f6937ffa81d00ec661d223cab7a37715 /tools/perf/util/probe-event.c | |
| parent | dd975497adcdd2526ae332d3938bd5d6e1c3731a (diff) | |
| download | linux-2fd457a34525ea3bc609e377b46af759af8a7934.tar.xz | |
perf probe: Add --cache option to cache the probe definitions
Add --cache option to cache the probe definitions. This just saves the
result of the dwarf analysis to probe cache.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.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: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20160615032840.31330.44412.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-event.c')
| -rw-r--r-- | tools/perf/util/probe-event.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index cbc8a8bf0f36..084756c17309 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -2514,6 +2514,7 @@ static int __add_probe_trace_events(struct perf_probe_event *pev, { int i, fd, ret; struct probe_trace_event *tev = NULL; + struct probe_cache *cache = NULL; struct strlist *namelist; fd = probe_file__open(PF_FL_RW | (pev->uprobes ? PF_FL_UPROBE : 0)); @@ -2555,6 +2556,14 @@ static int __add_probe_trace_events(struct perf_probe_event *pev, } if (ret == -EINVAL && pev->uprobes) warn_uprobe_event_compat(tev); + if (ret == 0 && probe_conf.cache) { + cache = probe_cache__new(pev->target); + if (!cache || + probe_cache__add_entry(cache, pev, tevs, ntevs) < 0 || + probe_cache__commit(cache) < 0) + pr_warning("Failed to add event to probe cache\n"); + probe_cache__delete(cache); + } strlist__delete(namelist); close_out: |