lib/glibc
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Remove pre-2.4 Linux kernel support.

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This commit is contained in:
Joseph Myers
2012-05-25 19:19:30 +00:00
parent a386f1cc22
commit 21708942c9
39 changed files with 240 additions and 1426 deletions
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86
sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c
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@ -1,6 +1,5 @@
/* Semctl for architectures where word sized unions are passed indirectly
Copyright (C) 1995,1997,1998,2000,2002,2003,2004,2006
Free Software Foundation, Inc.
Copyright (C) 1995-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
@ -27,7 +26,6 @@
#include <string.h>
#include <sys/syscall.h>
#include <kernel-features.h>
#include <shlib-compat.h>
struct __old_semid_ds
@ -55,14 +53,6 @@ union semun
#include <bp-checks.h>
#include <bp-semctl.h> /* definition of CHECK_SEMCTL needs union semum */
#ifdef __NR_getuid32
# if __ASSUME_32BITUIDS == 0
/* This variable is shared with all files that need to check for 32bit
uids. */
extern int __libc_missing_32bit_uids;
# endif
#endif
/* Return identifier for array of NSEMS semaphores associated with
KEY. */
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
@ -126,82 +116,8 @@ __new_semctl (int semid, int semnum, int cmd, ...)
break;
}
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
CHECK_SEMCTL (&arg, semid, cmd | __IPC_64));
#else
switch (cmd) {
case SEM_STAT:
case IPC_STAT:
case IPC_SET:
break;
default:
return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd,
CHECK_SEMCTL (&arg, semid, cmd));
}
{
int result;
struct __old_semid_ds old;
struct semid_ds *buf;
#ifdef __NR_getuid32
if (__libc_missing_32bit_uids <= 0)
{
if (__libc_missing_32bit_uids < 0)
{
int save_errno = errno;
/* Test presence of new IPC by testing for getuid32 syscall. */
result = INLINE_SYSCALL (getuid32, 0);
if (result == -1 && errno == ENOSYS)
__libc_missing_32bit_uids = 1;
else
__libc_missing_32bit_uids = 0;
__set_errno(save_errno);
}
if (__libc_missing_32bit_uids <= 0)
{
result = INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
CHECK_SEMCTL (&arg, semid, cmd | __IPC_64));
return result;
}
}
#endif
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,
CHECK_SEMCTL (&arg, semid, cmd));
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);