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Date: Fri, 11 Oct 2013 21:31:47 +0900 From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> To: Arnaldo Carvalho de Melo <acme@...stprotocols.net> Cc: Namhyung Kim <namhyung@...nel.org>, Ingo Molnar <mingo@...hat.com>, Paul Mackerras <paulus@...ba.org>, lkml <linux-kernel@...r.kernel.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl> Subject: Re: [PATCH -tip ] [BUGFIX] perf probe: fix to initialize fname always before use it Hi Arnaldo, I've found a bug in my previous patch which was already picked in the perf/urgent branch. The buggy commit id is e08cfd4bda7683cdbe6971c26cf23e2afdb1e7a8 And this is not related to the previous series of perf probe updates. Thank you, (2013/10/11 21:23), Masami Hiramatsu wrote: > Fix perf probe --list to initialize fname local var always before > use it. This may cause a SEGV if there is a probe which is in > the function body but not in any inline function. > > Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> > Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl> > Cc: Paul Mackerras <paulus@...ba.org> > Cc: Ingo Molnar <mingo@...hat.com> > Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net> > Cc: Namhyung Kim <namhyung@...nel.org> > --- > tools/perf/util/probe-finder.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c > index c044052..e41b094 100644 > --- a/tools/perf/util/probe-finder.c > +++ b/tools/perf/util/probe-finder.c > @@ -1460,10 +1460,10 @@ int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr, > goto post; > } > > + fname = dwarf_decl_file(&spdie); > if (addr == (unsigned long)baseaddr) { > /* Function entry - Relative line number is 0 */ > lineno = baseline; > - fname = dwarf_decl_file(&spdie); > goto post; > } -- Masami HIRAMATSU IT Management Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@...achi.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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