- va_start(ap, cmd);
- arg = va_arg(ap, long);
- va_end(ap);
-#ifdef SYS_semctl
- return syscall(SYS_semctl, id, num, cmd | IPC_64, arg);
+ switch (cmd) {
+ case SETVAL: case GETALL: case SETALL: case IPC_STAT: case IPC_SET:
+ case IPC_INFO: case SEM_INFO: case SEM_STAT:
+ va_start(ap, cmd);
+ arg = va_arg(ap, union semun);
+ va_end(ap);
+ }
+#ifdef SYSCALL_IPC_BROKEN_MODE
+ struct semid_ds tmp;
+ if (cmd == IPC_SET) {
+ tmp = *arg.buf;
+ tmp.sem_perm.mode *= 0x10000U;
+ arg.buf = &tmp;
+ }
+#endif
+#ifndef SYS_ipc
+ int r = __syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf);