Commit-ID: ffe10c6f95412da01695e659e967747333d5e812 Gitweb: http://git.kernel.org/tip/ffe10c6f95412da01695e659e967747333d5e812 Author: Namhyung Kim <[email protected]> AuthorDate: Mon, 15 Oct 2012 12:39:42 +0900 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Tue, 16 Oct 2012 13:05:07 -0300
perf tools: Fix segfault when using srcline sort key The srcline sort key is for grouping samples based on their source file and line number. It use addr2line tool to get the information but it requires dso name. It caused a segfault when a sample does not have the name by dereferencing a NULL pointer. Fix it by using raw ip addresses for those samples. Signed-off-by: Namhyung Kim <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/sort.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index b5b1b92..dd68f11 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -260,6 +260,9 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf, if (path != NULL) goto out_path; + if (!self->ms.map) + goto out_ip; + snprintf(cmd, sizeof(cmd), "addr2line -e %s %016" PRIx64, self->ms.map->dso->long_name, self->ip); fp = popen(cmd, "r"); -- 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/
