pselect, ppoll: add time64 syscall support, decouple 32-bit time_t

[musl] / src / ipc / semctl.c

diff --git a/src/ipc/semctl.c b/src/ipc/semctl.c
index 673a9a8..ce1fb16 100644 (file)
--- a/src/ipc/semctl.c
+++ b/src/ipc/semctl.c
@@ -1,8 +1,13 @@
 #include <sys/sem.h>
 #include <stdarg.h>
+#include <endian.h>
 #include "syscall.h"
 #include "ipc.h"
 
+#if __BYTE_ORDER != __BIG_ENDIAN
+#undef SYSCALL_IPC_BROKEN_MODE
+#endif
+
 union semun {
        int val;
        struct semid_ds *buf;
@@ -20,9 +25,26 @@ int semctl(int id, int num, int cmd, ...)
                arg = va_arg(ap, union semun);
                va_end(ap);
        }
-#ifdef SYS_semctl
-       return syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf);
+#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);
 #else
-       return syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf);
+       int r = __syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf);
+#endif
+#ifdef SYSCALL_IPC_BROKEN_MODE
+       if (r >= 0) switch (cmd) {
+       case IPC_STAT:
+       case SEM_STAT:
+       case SEM_STAT_ANY:
+               arg.buf->sem_perm.mode >>= 16;
+       }
 #endif
+       return __syscall_ret(r);
 }