From: Chenggang Qin <[email protected]> Some dsos' symsrc is neither syms_ss or runtime_ss. In this situation, the corresponding ELF file is opened and mmapped in symsrc__init(), but they will be not closed and munmapped in any place. This bug can lead to mmap & munmap mismatched, the mmap areas will exist during the life of perf. We can think this is a memory leak. This patch fixed the bug. symsrc__destroy() is called while the opened and mmaped ELF file has neither symtlb section nor dynsym section, and opdsec section. Thanks.
Cc: David Ahern <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Arjan van de Ven <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Yanmin Zhang <[email protected]> Cc: Wu Fengguang <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: Chenggang Qin <[email protected]> Acked-by: Namhyung Kim <[email protected]> --- tools/perf/util/symbol.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index d5528e1..9675866 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -828,7 +828,8 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) if (syms_ss && runtime_ss) break; - } + } else + symsrc__destroy(ss); } -- 1.7.8.rc2.5.g815b -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
