From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Stephane Eranian <eranian@google.com>,
Andi Kleen <ak@linux.intel.com>,
Namhyung Kim <namhyung.kim@lge.com>
Subject: [PATCH 4/6] perf tools: Ignore ABS symbols when loading data maps
Date: Wed, 7 Nov 2012 16:27:12 +0900 [thread overview]
Message-ID: <1352273234-28912-5-git-send-email-namhyung@kernel.org> (raw)
In-Reply-To: <1352273234-28912-1-git-send-email-namhyung@kernel.org>
From: Namhyung Kim <namhyung.kim@lge.com>
When loading symbols in a data mapping, ABS symbols (which has a value
of SHN_ABS in its st_shndx) failed at elf_getscn(). And it marks the
loading as a failure so already loaded symbols cannot be fixed up.
I'm not sure what should be done. Just ignore them for now. :)
Cc: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/symbol-elf.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index db0cc92cf2ea..00cf128e26f4 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -719,6 +719,9 @@ int dso__load_sym(struct dso *dso, struct map *map,
used_opd = true;
}
+ if (sym.st_shndx == SHN_ABS)
+ continue;
+
sec = elf_getscn(runtime_ss->elf, sym.st_shndx);
if (!sec)
goto out_elf_end;
--
1.7.11.7
next prev parent reply other threads:[~2012-11-07 7:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-07 7:27 [RFC/PATCH 0/6] perf tools: Additional works for memory access sampling Namhyung Kim
2012-11-07 7:27 ` [PATCH 1/6] perf tools: Synthesize data mmap events for threads Namhyung Kim
2012-11-08 14:55 ` Arnaldo Carvalho de Melo
2012-11-07 7:27 ` [PATCH 2/6] perf tools: Set kernel data mapping length Namhyung Kim
2012-11-14 7:29 ` [tip:perf/core] perf machine: " tip-bot for Namhyung Kim
2012-11-07 7:27 ` [PATCH 3/6] perf tools: Fix detection of stack area Namhyung Kim
2012-11-14 7:30 ` [tip:perf/core] " tip-bot for Namhyung Kim
2012-11-07 7:27 ` Namhyung Kim [this message]
2012-11-07 7:27 ` [PATCH 5/6] perf tools: Fix output of symbol_daddr offset Namhyung Kim
2012-11-07 7:27 ` [PATCH 6/6] perf tools: Free {branch,mem}_info when freeing hist_entry Namhyung Kim
2012-11-14 7:31 ` [tip:perf/core] perf hists: Free branch_info " tip-bot for Namhyung Kim
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