perf tools: Misc small fixes
- util/header.c
"len" is aligned to 64. So, it tries to write the out of
long_name buffer.
So, this use "zero_buf" to write aligned area.
- util/trace-event-read.c
"size" is not including nul byte. So, this allocates it, and set '\0'.
- util/trace-event-parse.c
It needs parens to calc correct size.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <87d42s8iiu.fsf_-_@devron.myhome.or.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 4805e6d..08b6759 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -187,7 +187,9 @@
static int __dsos__write_buildid_table(struct list_head *head, int fd)
{
+#define NAME_ALIGN 64
struct dso *pos;
+ static const char zero_buf[NAME_ALIGN];
list_for_each_entry(pos, head, node) {
int err;
@@ -197,14 +199,17 @@
if (!pos->has_build_id)
continue;
len = pos->long_name_len + 1;
- len = ALIGN(len, 64);
+ len = ALIGN(len, NAME_ALIGN);
memset(&b, 0, sizeof(b));
memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id));
b.header.size = sizeof(b) + len;
err = do_write(fd, &b, sizeof(b));
if (err < 0)
return err;
- err = do_write(fd, pos->long_name, len);
+ err = do_write(fd, pos->long_name, pos->long_name_len + 1);
+ if (err < 0)
+ return err;
+ err = do_write(fd, zero_buf, len - pos->long_name_len + 1);
if (err < 0)
return err;
}