From: Aleksandar Rikalo <arik...@wavecomp.com>
Add support for semtimedop() emulation.
Signed-off-by: Aleksandar Rikalo <arik...@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarko...@wavecomp.com>
---
linux-user/syscall.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 8b01ab0..e722ba8 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6162,7 +6162,29 @@ static inline abi_long host_to_target_stat64(void
*cpu_env,
return 0;
}
#endif
+#ifdef TARGET_NR_semtimedop
+static inline abi_long do_semtimedop(int semid, abi_long ptr, unsigned nsops,
+ abi_long timeout)
+{
+ struct sembuf sops[nsops];
+ struct timespec ts, *pts;
+
+ if (timeout) {
+ pts = &ts;
+ if (target_to_host_timespec(pts, timeout)) {
+ return -TARGET_EFAULT;
+ }
+ } else {
+ pts = NULL;
+ }
+ if (target_to_host_sembuf(sops, ptr, nsops)) {
+ return -TARGET_EFAULT;
+ }
+
+ return get_errno(semtimedop(semid, sops, nsops, pts));
+}
+#endif
/* ??? Using host futex calls even when target atomic operations
are not really atomic probably breaks things. However implementing
futexes locally would make futexes shared between multiple processes
@@ -8661,6 +8683,11 @@ static abi_long do_syscall1(void *cpu_env, int num,
abi_long arg1,
case TARGET_NR_semget:
return get_errno(semget(arg1, arg2, arg3));
#endif
+#ifdef TARGET_NR_semtimedop
+ case TARGET_NR_semtimedop:
+ ret = do_semtimedop(arg1, arg2, arg3, arg4);
+ break;
+#endif
#ifdef TARGET_NR_semop
case TARGET_NR_semop:
return do_semop(arg1, arg2, arg3);
--
2.7.4
