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perf symbols: Ignore ABS symbols when loading data maps
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. :) Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1353502185-26521-19-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -718,6 +718,17 @@ int dso__load_sym(struct dso *dso, struct map *map,
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sym.st_value);
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used_opd = true;
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}
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/*
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* When loading symbols in a data mapping, ABS symbols (which
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* has a value of SHN_ABS in its st_shndx) failed at
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* elf_getscn(). And it marks the loading as a failure so
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* already loaded symbols cannot be fixed up.
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*
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* I'm not sure what should be done. Just ignore them for now.
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* - Namhyung Kim
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*/
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if (sym.st_shndx == SHN_ABS)
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continue;
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sec = elf_getscn(runtime_ss->elf, sym.st_shndx);
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if (!sec)
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