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authorFrederic Weisbecker <fweisbec@gmail.com>2009-06-13 17:39:23 +0200
committerIngo Molnar <mingo@elte.hu>2009-06-13 17:51:00 +0200
commitc17c2db1f3cea41c3543025905d3582c6937dd95 (patch)
treea795e310e24c7d07a6ea279c1b2332ee80b5b797 /tools
parentef281a196d66b8bc2d067a3704712e5b93691fbc (diff)
downloadlinux-c17c2db1f3cea41c3543025905d3582c6937dd95.tar.gz
perf annotate: Fixes for filename:line displays
- fix addr2line on userspace binary: don't only check kernel image. - fix string allocation size for path: missing ending null char room - fix overflow in symbol extra info Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1244907563-7820-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/builtin-annotate.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 7a5b27867a9..94cea678fd7 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -1116,7 +1116,7 @@ parse_line(FILE *file, struct symbol *sym, __u64 start, __u64 len)
if (offset < len)
hits = sym->hist[offset];
- if (sym_ext) {
+ if (offset < len && sym_ext) {
path = sym_ext[offset].path;
percent = sym_ext[offset].percent;
} else if (sym->hist_sum)
@@ -1190,7 +1190,8 @@ static void free_source_line(struct symbol *sym, int len)
}
/* Get the filename:line for the colored entries */
-static void get_source_line(struct symbol *sym, __u64 start, int len)
+static void
+get_source_line(struct symbol *sym, __u64 start, int len, char *filename)
{
int i;
char cmd[PATH_MAX * 2];
@@ -1216,7 +1217,7 @@ static void get_source_line(struct symbol *sym, __u64 start, int len)
continue;
offset = start + i;
- sprintf(cmd, "addr2line -e %s %016llx", vmlinux, offset);
+ sprintf(cmd, "addr2line -e %s %016llx", filename, offset);
fp = popen(cmd, "r");
if (!fp)
continue;
@@ -1224,7 +1225,7 @@ static void get_source_line(struct symbol *sym, __u64 start, int len)
if (getline(&path, &line_len, fp) < 0 || !line_len)
goto next;
- sym_ext[i].path = malloc(sizeof(char) * line_len);
+ sym_ext[i].path = malloc(sizeof(char) * line_len + 1);
if (!sym_ext[i].path)
goto next;
@@ -1285,7 +1286,7 @@ static void annotate_sym(struct dso *dso, struct symbol *sym)
len = sym->end - sym->start;
if (print_line) {
- get_source_line(sym, start, len);
+ get_source_line(sym, start, len, filename);
print_summary(filename);
}