From: Victor Kamensky <victor.kamensky@linaro.org> To: Namhyung Kim <namhyung@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org>, Russell King <linux@arm.linux.org.uk>, David Ahern <dsahern@gmail.com>, Will Deacon <will.deacon@arm.com>, Peter Zijlstra <a.p.zijlstra@chello.nl>, Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@redhat.com>, Adrian Hunter <adrian.hunter@intel.com>, Jiri Olsa <jolsa@redhat.com>, Avi Kivity <avi@cloudius-systems.com>, Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>, Anton Blanchard <anton@samba.org>, Dave Martin <Dave.Martin@arm.com>, open list <linux-kernel@vger.kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, Jiri Olsa <jolsa@kernel.org>, Waiman Long <Waiman.Long@hp.com> Subject: Re: [PATCH V3 2/2] perf symbols: debuglink should take symfs option into account Date: Wed, 28 Jan 2015 20:08:30 -0800 [thread overview] Message-ID: <CAA3XUr1twCC6s=1Y3Fk7W3ER9t6hFKJBC57vyzx9zjTD9fMW1Q@mail.gmail.com> (raw) In-Reply-To: <20150129013809.GB24182@sejong> Hi Namhyung, On 28 January 2015 at 17:38, Namhyung Kim <namhyung@kernel.org> wrote: > Hi Victor, > > On Mon, Jan 26, 2015 at 10:34:02PM -0800, Victor Kamensky wrote: >> Currently code that tries to read corresponding debug symbol >> file from .gnu_debuglink section (DSO_BINARY_TYPE__DEBUGLINK) >> does not take in account symfs option, so filename__read_debuglink >> function cannot open ELF file, if symfs option is used. >> >> Fix is to add proper handling of symfs as it is done in other >> places: use __symbol__join_symfs function to get real file name >> of target ELF file. >> >> Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> >> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> >> Cc: Paul Mackerras <paulus@samba.org> >> Cc: Ingo Molnar <mingo@redhat.com> >> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> >> Cc: Jiri Olsa <jolsa@kernel.org> >> Cc: Adrian Hunter <adrian.hunter@intel.com> >> Cc: Waiman Long <Waiman.Long@hp.com> >> Cc: David Ahern <dsahern@gmail.com> >> Acked-and-tested-by: David Ahern <dsahern@gmail.com> > > Acked-by: Namhyung Kim <namhyung@kernel.org> Thank you for the Acks! Is there any action items on my side? Should I repost patches with your Acks? Or you or Arnaldo will add them once they got merged in proper tree for upstreaming? Thanks, Victor > Thanks, > Namhyung > > >> --- >> tools/perf/util/dso.c | 6 +++--- >> 1 file changed, 3 insertions(+), 3 deletions(-) >> >> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c >> index 45be944..ca8d8d5 100644 >> --- a/tools/perf/util/dso.c >> +++ b/tools/perf/util/dso.c >> @@ -45,13 +45,13 @@ int dso__read_binary_type_filename(const struct dso *dso, >> case DSO_BINARY_TYPE__DEBUGLINK: { >> char *debuglink; >> >> - strncpy(filename, dso->long_name, size); >> - debuglink = filename + dso->long_name_len; >> + len = __symbol__join_symfs(filename, size, dso->long_name); >> + debuglink = filename + len; >> while (debuglink != filename && *debuglink != '/') >> debuglink--; >> if (*debuglink == '/') >> debuglink++; >> - ret = filename__read_debuglink(dso->long_name, debuglink, >> + ret = filename__read_debuglink(filename, debuglink, >> size - (debuglink - filename)); >> } >> break; >> -- >> 1.9.3 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/
WARNING: multiple messages have this Message-ID (diff)
From: victor.kamensky@linaro.org (Victor Kamensky) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V3 2/2] perf symbols: debuglink should take symfs option into account Date: Wed, 28 Jan 2015 20:08:30 -0800 [thread overview] Message-ID: <CAA3XUr1twCC6s=1Y3Fk7W3ER9t6hFKJBC57vyzx9zjTD9fMW1Q@mail.gmail.com> (raw) In-Reply-To: <20150129013809.GB24182@sejong> Hi Namhyung, On 28 January 2015 at 17:38, Namhyung Kim <namhyung@kernel.org> wrote: > Hi Victor, > > On Mon, Jan 26, 2015 at 10:34:02PM -0800, Victor Kamensky wrote: >> Currently code that tries to read corresponding debug symbol >> file from .gnu_debuglink section (DSO_BINARY_TYPE__DEBUGLINK) >> does not take in account symfs option, so filename__read_debuglink >> function cannot open ELF file, if symfs option is used. >> >> Fix is to add proper handling of symfs as it is done in other >> places: use __symbol__join_symfs function to get real file name >> of target ELF file. >> >> Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> >> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> >> Cc: Paul Mackerras <paulus@samba.org> >> Cc: Ingo Molnar <mingo@redhat.com> >> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> >> Cc: Jiri Olsa <jolsa@kernel.org> >> Cc: Adrian Hunter <adrian.hunter@intel.com> >> Cc: Waiman Long <Waiman.Long@hp.com> >> Cc: David Ahern <dsahern@gmail.com> >> Acked-and-tested-by: David Ahern <dsahern@gmail.com> > > Acked-by: Namhyung Kim <namhyung@kernel.org> Thank you for the Acks! Is there any action items on my side? Should I repost patches with your Acks? Or you or Arnaldo will add them once they got merged in proper tree for upstreaming? Thanks, Victor > Thanks, > Namhyung > > >> --- >> tools/perf/util/dso.c | 6 +++--- >> 1 file changed, 3 insertions(+), 3 deletions(-) >> >> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c >> index 45be944..ca8d8d5 100644 >> --- a/tools/perf/util/dso.c >> +++ b/tools/perf/util/dso.c >> @@ -45,13 +45,13 @@ int dso__read_binary_type_filename(const struct dso *dso, >> case DSO_BINARY_TYPE__DEBUGLINK: { >> char *debuglink; >> >> - strncpy(filename, dso->long_name, size); >> - debuglink = filename + dso->long_name_len; >> + len = __symbol__join_symfs(filename, size, dso->long_name); >> + debuglink = filename + len; >> while (debuglink != filename && *debuglink != '/') >> debuglink--; >> if (*debuglink == '/') >> debuglink++; >> - ret = filename__read_debuglink(dso->long_name, debuglink, >> + ret = filename__read_debuglink(filename, debuglink, >> size - (debuglink - filename)); >> } >> break; >> -- >> 1.9.3 >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo at vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2015-01-29 4:08 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-01-27 6:34 [PATCH V3 0/2] perf symbols: debuglink and arm mapping symbols changes Victor Kamensky 2015-01-27 6:34 ` Victor Kamensky 2015-01-27 6:34 ` [PATCH V3 1/2] perf symbols: Ignore mapping symbols on aarch64 Victor Kamensky 2015-01-27 6:34 ` Victor Kamensky 2015-01-29 1:39 ` Namhyung Kim 2015-01-29 1:39 ` Namhyung Kim 2015-02-18 18:26 ` [tip:perf/core] " tip-bot for Victor Kamensky 2015-01-27 6:34 ` [PATCH V3 2/2] perf symbols: debuglink should take symfs option into account Victor Kamensky 2015-01-27 6:34 ` Victor Kamensky 2015-01-29 1:38 ` Namhyung Kim 2015-01-29 1:38 ` Namhyung Kim 2015-01-29 4:08 ` Victor Kamensky [this message] 2015-01-29 4:08 ` Victor Kamensky 2015-01-29 6:54 ` Namhyung Kim 2015-01-29 6:54 ` Namhyung Kim 2015-01-30 14:40 ` Arnaldo Carvalho de Melo 2015-01-30 14:40 ` Arnaldo Carvalho de Melo 2015-02-18 18:26 ` [tip:perf/core] " tip-bot for Victor Kamensky
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