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-rw-r--r--tools/perf/util/header.c9
-rw-r--r--tools/perf/util/trace-event-parse.c2
-rw-r--r--tools/perf/util/trace-event-read.c3
3 files changed, 10 insertions, 4 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 4805e6dfd23c..08b6759287f5 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -187,7 +187,9 @@ static int do_write(int fd, const void *buf, size_t size)
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 @@ static int __dsos__write_buildid_table(struct list_head *head, int fd)
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;
}
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 0302405aa2ca..6ffe9d63d85d 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -177,7 +177,7 @@ void parse_proc_kallsyms(char *file, unsigned int size __unused)
func_count++;
}
- func_list = malloc_or_die(sizeof(*func_list) * func_count + 1);
+ func_list = malloc_or_die(sizeof(*func_list) * (func_count + 1));
i = 0;
while (list) {
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 342dfdd43f87..1744422cafcb 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -145,8 +145,9 @@ static void read_proc_kallsyms(void)
if (!size)
return;
- buf = malloc_or_die(size);
+ buf = malloc_or_die(size + 1);
read_or_die(buf, size);
+ buf[size] = '\0';
parse_proc_kallsyms(buf, size);