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authorJoseph Myers <joseph@codesourcery.com>2012-08-01 21:27:58 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-08-01 21:27:58 +0000
commit23bddc0668391d97710f7d10c8cb04dc305112ea (patch)
tree0adaa0c734216915579c5da84dfb4fe87fc53874 /sysdeps/unix/sysv/linux/i386/fcntl.c
parenta9f1039f0a6a3b5e453107ae2e4c5deff0926ea6 (diff)
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Remove __ASSUME_FCNTL64.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/fcntl.c')
-rw-r--r--sysdeps/unix/sysv/linux/i386/fcntl.c134
1 files changed, 3 insertions, 131 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/fcntl.c b/sysdeps/unix/sysv/linux/i386/fcntl.c
index c68a06b45b..a0f25449e0 100644
--- a/sysdeps/unix/sysv/linux/i386/fcntl.c
+++ b/sysdeps/unix/sysv/linux/i386/fcntl.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000,2002-2004,2006,2009,2010 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -22,25 +22,8 @@
#include <stdarg.h>
#include <sys/syscall.h>
-#include <kernel-features.h>
-#ifndef __ASSUME_FCNTL64
-/* This variable is shared with all files that check for fcntl64. */
-int __have_no_fcntl64;
-#endif
-
-#ifdef __ASSUME_F_GETOWN_EX
-# define miss_F_GETOWN_EX 0
-#elif !defined __ASSUME_FCNTL64
-static int miss_F_GETOWN_EX;
-#endif
-
-
-#if defined NO_CANCELLATION && !defined __ASSUME_FCNTL64
-# define __fcntl_nocancel __libc_fcntl
-#endif
-
-#if !defined NO_CANCELLATION || !defined __ASSUME_FCNTL64
+#ifndef NO_CANCELLATION
int
__fcntl_nocancel (int fd, int cmd, ...)
{
@@ -51,112 +34,11 @@ __fcntl_nocancel (int fd, int cmd, ...)
arg = va_arg (ap, void *);
va_end (ap);
-#ifndef __ASSUME_FCNTL64
-# ifdef __NR_fcntl64
- if (! __have_no_fcntl64)
- {
- int result = INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
- if (result >= 0 || errno != ENOSYS)
- return result;
-
- __have_no_fcntl64 = 1;
- }
-# endif
- switch (cmd)
- {
- case F_GETLK64:
- /* Convert arg from flock64 to flock and back. */
- {
- struct flock fl;
- struct flock64 *fl64 = arg;
- int res;
-
- fl.l_start = (off_t)fl64->l_start;
- /* Check if we can represent the values with the smaller type. */
- if ((off64_t) fl.l_start != fl64->l_start)
- {
- eoverflow:
- __set_errno (EOVERFLOW);
- return -1;
- }
- fl.l_len = (off_t) fl64->l_len;
- /* Check if we can represent the values with the smaller type. */
- if ((off64_t) fl.l_len != fl64->l_len)
- goto eoverflow;
-
- fl.l_type = fl64->l_type;
- fl.l_whence = fl64->l_whence;
- fl.l_pid = fl64->l_pid;
-
- res = INLINE_SYSCALL (fcntl, 3, fd, F_GETLK, &fl);
- if (res != 0)
- return res;
- /* Everything ok, convert back. */
- fl64->l_type = fl.l_type;
- fl64->l_whence = fl.l_whence;
- fl64->l_start = fl.l_start;
- fl64->l_len = fl.l_len;
- fl64->l_pid = fl.l_pid;
-
- return 0;
- }
- case F_SETLK64:
- case F_SETLKW64:
- /* Try to convert arg from flock64 to flock. */
- {
- struct flock fl;
- struct flock64 *fl64 = arg;
-
- fl.l_start = (off_t) fl64->l_start;
- /* Check if we can represent the values with the smaller type. */
- if ((off64_t) fl.l_start != fl64->l_start)
- goto eoverflow;
-
- fl.l_len = (off_t)fl64->l_len;
- /* Check if we can represent the values with the smaller type. */
- if ((off64_t) fl.l_len != fl64->l_len)
- {
- __set_errno (EOVERFLOW);
- return -1;
- }
- fl.l_type = fl64->l_type;
- fl.l_whence = fl64->l_whence;
- fl.l_pid = fl64->l_pid;
- assert (F_SETLK - F_SETLKW == F_SETLK64 - F_SETLKW64);
- return INLINE_SYSCALL (fcntl, 3, fd, cmd + F_SETLK - F_SETLK64, &fl);
- }
- case F_GETOWN:
- if (! miss_F_GETOWN_EX)
- {
- INTERNAL_SYSCALL_DECL (err);
- struct f_owner_ex fex;
- int res = INTERNAL_SYSCALL (fcntl, err, 3, fd, F_GETOWN_EX, &fex);
- if (!INTERNAL_SYSCALL_ERROR_P (res, err))
- return fex.type == F_OWNER_GID ? -fex.pid : fex.pid;
-
-# ifndef __ASSUME_F_GETOWN_EX
- if (INTERNAL_SYSCALL_ERRNO (res, err) == EINVAL)
- miss_F_GETOWN_EX = 1;
- else
-# endif
- {
- __set_errno (INTERNAL_SYSCALL_ERRNO (res, err));
- return -1;
- }
- }
- /* FALLTHROUGH */
- default:
- return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg);
- }
- return -1;
-#else
return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
-#endif /* !__ASSUME_FCNTL64 */
}
-#endif /* NO_CANCELLATION || !__ASSUME_FCNTL64 */
+#endif /* NO_CANCELLATION */
-#ifndef __fcntl_nocancel
int
__libc_fcntl (int fd, int cmd, ...)
{
@@ -167,27 +49,17 @@ __libc_fcntl (int fd, int cmd, ...)
arg = va_arg (ap, void *);
va_end (ap);
-# ifdef __ASSUME_FCNTL64
if (SINGLE_THREAD_P || (cmd != F_SETLKW && cmd != F_SETLKW64))
return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
int oldtype = LIBC_CANCEL_ASYNC ();
int result = INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
-# else
- if (SINGLE_THREAD_P || (cmd != F_SETLKW && cmd != F_SETLKW64))
- return __fcntl_nocancel (fd, cmd, arg);
-
- int oldtype = LIBC_CANCEL_ASYNC ();
-
- int result = __fcntl_nocancel (fd, cmd, arg);
-# endif
LIBC_CANCEL_RESET (oldtype);
return result;
}
-#endif
libc_hidden_def (__libc_fcntl)
weak_alias (__libc_fcntl, __fcntl)