Commit 5c0cf224 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo

perf record: Store data mmaps for dwarf unwind

Currently we don't synthesize data mmap by default. It depends on -d
option, that enables data address sampling.

But we've seen cases (softice) where DWARF unwinder went through non
executable mmaps, which we need to lookup in MAP__VARIABLE tree.

Making data mmaps to be synthesized for dwarf unwind as well.
Reported-by: default avatarNoel Grandin <noelgrandin@gmail.com>
Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20160107133022.GA32115@krava.brq.redhat.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 0ba98149
......@@ -815,8 +815,12 @@ int record_parse_callchain_opt(const struct option *opt,
}
ret = parse_callchain_record_opt(arg, &callchain_param);
if (!ret)
if (!ret) {
/* Enable data address sampling for DWARF unwind. */
if (callchain_param.record_mode == CALLCHAIN_DWARF)
record->sample_address = true;
callchain_debug();
}
return ret;
}
......
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