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perf buildid-cache: Support binary objects from other namespaces

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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>
This commit is contained in:
Krister Johansen
2017-07-05 18:48:11 -07:00
committed by Arnaldo Carvalho de Melo
parent 544abd44c7
commit f045b8c4b3
16 changed files with 160 additions and 63 deletions
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2
tools/perf/util/parse-events.c
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@@ -2124,7 +2124,7 @@ void print_sdt_events(const char *subsys_glob, const char *event_glob,
return;
}
strlist__for_each_entry(nd, bidlist) {
pcache = probe_cache__new(nd->s);
pcache = probe_cache__new(nd->s, NULL);
if (!pcache)
continue;
list_for_each_entry(ent, &pcache->entries, node) {