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@@ -1,8 +1,13 @@
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#include <sys/sem.h>
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#include <stdarg.h>
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+#include <endian.h>
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#include "syscall.h"
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#include "ipc.h"
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+#if __BYTE_ORDER != __BIG_ENDIAN
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+#undef SYSCALL_IPC_BROKEN_MODE
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+#endif
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+
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union semun {
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int val;
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struct semid_ds *buf;
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@@ -20,9 +25,26 @@ int semctl(int id, int num, int cmd, ...)
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arg = va_arg(ap, union semun);
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va_end(ap);
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}
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+#ifdef SYSCALL_IPC_BROKEN_MODE
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+ struct semid_ds tmp;
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+ if (cmd == IPC_SET) {
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+ tmp = *arg.buf;
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+ tmp.sem_perm.mode *= 0x10000U;
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+ arg.buf = &tmp;
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+ }
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+#endif
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#ifdef SYS_semctl
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- return syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf);
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+ int r = __syscall(SYS_semctl, id, num, cmd | IPC_64, arg.buf);
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#else
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- return syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf);
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+ int r = __syscall(SYS_ipc, IPCOP_semctl, id, num, cmd | IPC_64, &arg.buf);
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+#endif
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+#ifdef SYSCALL_IPC_BROKEN_MODE
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+ if (r >= 0) switch (cmd) {
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+ case IPC_STAT:
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+ case SEM_STAT:
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+ case SEM_STAT_ANY:
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+ arg.buf->sem_perm.mode >>= 16;
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+ }
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#endif
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+ return __syscall_ret(r);
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}
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