X32 msgsnd/msgrcv system calls are the same as x86-64 msgsnd/msgrcv system
calls, which use 64-bit integer for long in struct msgbuf . But x32 long
is 32 bit. This patch replaces long in struct msgbuf with __kernel_long_t
if __BITS_PER_LONG == 64.
Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
---
include/uapi/linux/msg.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/include/uapi/linux/msg.h b/include/uapi/linux/msg.h
index 22d95c6..6b6ec96 100644
--- a/include/uapi/linux/msg.h
+++ b/include/uapi/linux/msg.h
@@ -34,8 +34,12 @@ struct msqid_ds {
/* message buffer for msgsnd and msgrcv calls */
struct msgbuf {
- long mtype; /* type of message */
- char mtext[1]; /* message text */
+#if __BITS_PER_LONG == 64
+ __kernel_long_t mtype; /* type of message */
+#else
+ long mtype; /* type of message */
+#endif
+ char mtext[1]; /* message text */
};
/* buffer for msgctl calls IPC_INFO, MSG_INFO */
--
1.8.4.2
--
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