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authorKrister Johansen <kjlx@templeofstupid.com>2017-07-06 04:48:11 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-07-19 05:14:11 +0300
commitf045b8c4b36baddcfbdd4d3d956446e688b0b3cd (patch)
tree254b370374c31a5750b9aaa2fcc0b5f87208093e /tools/perf/util/probe-event.c
parent544abd44c7064c8a58a6bd2073d757f6b91d98c5 (diff)
downloadlinux-f045b8c4b36baddcfbdd4d3d956446e688b0b3cd.tar.xz
perf buildid-cache: Support binary objects from other namespaces
Teach buildid-cache how to add, remove, and update binary objects from other mount namespaces. Allow probe events tracing binaries in different namespaces to add their objects to the probe and build-id caches too. As a handy side effect, this also lets us access SDT probes in binaries from alternate mount namespaces. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Tested-by: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas-Mich Richter <tmricht@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1499305693-1599-5-git-send-email-kjlx@templeofstupid.com [ Add util/namespaces.c to tools/perf/util/python-ext-sources, to fix the python binding 'perf test' ] 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.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index a80895a7e611..d7cd1142f4c6 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2769,7 +2769,7 @@ 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);
+ cache = probe_cache__new(pev->target, pev->nsi);
if (!cache ||
probe_cache__add_entry(cache, pev, tevs, ntevs) < 0 ||
probe_cache__commit(cache) < 0)
@@ -3119,7 +3119,7 @@ static int find_cached_events(struct perf_probe_event *pev,
int ntevs = 0;
int ret = 0;
- cache = probe_cache__new(target);
+ cache = probe_cache__new(target, pev->nsi);
/* Return 0 ("not found") if the target has no probe cache. */
if (!cache)
return 0;
@@ -3209,7 +3209,7 @@ static int find_probe_trace_events_from_cache(struct perf_probe_event *pev,
else
return find_cached_events(pev, tevs, pev->target);
}
- cache = probe_cache__new(pev->target);
+ cache = probe_cache__new(pev->target, pev->nsi);
if (!cache)
return 0;