[patch v8 01/24] btrace, linux: fix memory leak when reading branch trace

Markus Metzger
2013-12-12T09:15:52Z

When it takes more than one iteration to read the BTS trace, the trace from the
previous iteration is leaked. Fix it.

2013-12-12 Markus Metzger <markus.t.metzger@intel.com>

* common/linux-btrace.c (linux_read_btrace): Free trace from
previous iteration.

---
gdb/common/linux-btrace.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/gdb/common/linux-btrace.c b/gdb/common/linux-btrace.c
index 7e20745..2e0cd8e 100644
--- a/gdb/common/linux-btrace.c
+++ b/gdb/common/linux-btrace.c
@@ -520,6 +520,9 @@ linux_read_btrace (struct btrace_target_info *tinfo,
{
data_head = header->data_head;

+ /* Delete any leftover trace from the previous iteration. */
+ VEC_free (btrace_block_s, btrace);
+
/* If there's new trace, let's read it. */
if (data_head != tinfo->data_head)
{
--
1.8.3.1