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authorAzat Khuzhin <a3at.mail@gmail.com>2013-10-28 09:04:24 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-11-14 20:06:28 +0100
commit35e17b2450e09968f9702d4048c228199af171bc (patch)
tree27f883b5c0be369a5b13ea0da695ef08925a06ce
parentperf ui browser: Fix segfault caused by off by one handling END key (diff)
downloadlinux-35e17b2450e09968f9702d4048c228199af171bc.tar.xz
linux-35e17b2450e09968f9702d4048c228199af171bc.zip
perf probe: Add '--demangle'/'--no-demangle'
You can't pass demangled name into "perf probe", because of special chars: ./perf probe -f -x /tmp/a.out 'foo(int)' Semantic error :There is non-digit char in line number. And you can't even pass without demangling (because it search symbol in DSO with demangle=true): ./perf probe -f -x /tmp/a.out _Z3fooi no symbols found in /tmp/a.out, maybe install a debug package? However: nm /tmp/a.out | grep foo 000000000040056d T _Z3fooi After this patch, using the next command: ./perf probe -f --no-demangle -x /tmp/a.out _Z3fooi probe will be successfully added. Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1382947464-31266-1-git-send-email-a3at.mail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/builtin-probe.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 89acc17cf2a0..6ea9e85bdc00 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -325,6 +325,8 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
opt_set_filter),
OPT_CALLBACK('x', "exec", NULL, "executable|path",
"target executable name or path", opt_set_target),
+ OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
+ "Disable symbol demangling"),
OPT_END()
};
int ret;