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perf trace: Only auto set call-graph to "dwarf" when syscalls are being traced

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When --min-stack or --max-stack is passwd but --no-syscalls is also in
effect, there is no point in automatically setting '--call-graph dwarf'.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-pq922i7h9wef0pho1dqpttvn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2016-05-19 19:00:27 -03:00
parent 7e4c149813
commit caa36ed7ba
1 changed files with 1 additions and 1 deletions
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2
tools/perf/builtin-trace.c
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@ -2910,7 +2910,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
}
#ifdef HAVE_DWARF_UNWIND_SUPPORT
if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled)
if ((trace.min_stack || max_stack_user_set) && !callchain_param.enabled && trace.trace_syscalls)
record_opts__parse_callchain(&trace.opts, &callchain_param, "dwarf", false);
#endif