[v2,06/13] gdb/linux-record: Fix msghdr parsing on 64-bit targets
Commit Message
The code failed to account for padding between the int and subsequent
pointer present on 64-bit architectures.
gdb/ChangeLog:
* linux-record.c (record_linux_msghdr): Fix msg_namelen handling.
---
gdb/ChangeLog | 4 ++++
gdb/linux-record.c | 4 +++-
2 files changed, 7 insertions(+), 1 deletion(-)
@@ -1,5 +1,9 @@
2015-10-22 Marcin Kościelnicki <koriakin@0x04.net>
+ * linux-record.c (record_linux_msghdr): Fix msg_namelen handling.
+
+2015-10-22 Marcin Kościelnicki <koriakin@0x04.net>
+
* aarch64-linux-tdep.c (aarch64_linux_init_abi): Remove
size_dirent{,64}, add size_old_dirent.
* amd64-linux-tdep.c (amd64_linux_init_abi): Remove size_dirent{,64},
@@ -162,7 +162,9 @@ record_linux_msghdr (struct regcache *regcache,
tdep->size_int,
byte_order)))
return -1;
- a += tdep->size_int;
+ /* We have read an int, but skip size_pointer bytes to account for alignment
+ of the next field on 64-bit targets. */
+ a += tdep->size_pointer;
/* msg_iov msg_iovlen */
addr = extract_unsigned_integer (a, tdep->size_pointer, byte_order);