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Remove __ASSUME_IPC64

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PowerPC has always used __IPC_64 like most other architectures, which
means that __ASSUME_IPC64 can be always true.  Also, all other
architecture implementations that use the ipc syscall are effectively
identical to the generic version and can be removed.
This commit is contained in:
Andreas Schwab
2015-08-18 10:29:30 +02:00
parent 1695cdae06
commit be481652f2
24 changed files with 29 additions and 706 deletions
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59
sysdeps/unix/sysv/linux/semctl.c
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@ -121,67 +121,8 @@ __new_semctl (int semid, int semnum, int cmd, ...)
va_end (ap);
#if __ASSUME_IPC64 > 0
return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
&arg);
#else
switch (cmd)
{
case SEM_STAT:
case IPC_STAT:
case IPC_SET:
break;
default:
return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd,
&arg);
}
{
int save_errno = errno, result;
struct __old_semid_ds old;
struct semid_ds *buf;
/* Unfortunately there is no way how to find out for sure whether
we should use old or new semctl. */
result = INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
&arg);
if (result != -1 || errno != EINVAL)
return result;
__set_errno(save_errno);
buf = arg.buf;
arg.__old_buf = &old;
if (cmd == IPC_SET)
{
old.sem_perm.uid = buf->sem_perm.uid;
old.sem_perm.gid = buf->sem_perm.gid;
old.sem_perm.mode = buf->sem_perm.mode;
if (old.sem_perm.uid != buf->sem_perm.uid ||
old.sem_perm.gid != buf->sem_perm.gid)
{
__set_errno (EINVAL);
return -1;
}
}
result = INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd,
&arg);
if (result != -1 && cmd != IPC_SET)
{
memset(buf, 0, sizeof(*buf));
buf->sem_perm.__key = old.sem_perm.__key;
buf->sem_perm.uid = old.sem_perm.uid;
buf->sem_perm.gid = old.sem_perm.gid;
buf->sem_perm.cuid = old.sem_perm.cuid;
buf->sem_perm.cgid = old.sem_perm.cgid;
buf->sem_perm.mode = old.sem_perm.mode;
buf->sem_perm.__seq = old.sem_perm.__seq;
buf->sem_otime = old.sem_otime;
buf->sem_ctime = old.sem_ctime;
buf->sem_nsems = old.sem_nsems;
}
return result;
}
#endif
}
versioned_symbol (libc, __new_semctl, semctl, GLIBC_2_2);