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/* Copyright (C) 1995-2000,2002,2003,2004,2005,2006
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
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#define _ERRNO_H 1
#include <features.h>
#include <bits/errno.h>
#include <sys/syscall.h>
#if defined __NR_fadvise64_64 || defined __NR_fadvise64
/* Was named __libc_posix_fadvise64 for some inexplicable reason.
** google says only uclibc has *__libc*_posix_fadviseXXX,
** so it cannot be compat with anything.
**
** Remove this comment and one at the end after 0.9.31
*/
.text
.global posix_fadvise64
.type posix_fadvise64,%function
posix_fadvise64:
#if defined __NR_fadvise64_64
/* Save regs */
pushl %ebp
pushl %ebx
pushl %esi
pushl %edi
movl $__NR_fadvise64_64, %eax /* Syscall number in %eax. */
movl 20(%esp), %ebx
movl 24(%esp), %ecx
movl 28(%esp), %edx
movl 32(%esp), %esi
movl 36(%esp), %edi
movl 40(%esp), %ebp
/* Do the system call trap. */
int $0x80
/* Restore regs */
popl %edi
popl %esi
popl %ebx
popl %ebp
/* Returns 0 on success, else an error code. */
negl %eax
#elif defined __NR_fadvise64
/* Save regs */
pushl %ebx
pushl %esi
pushl %edi
#if 0
/* does len overflow long? */
cmpl $0, 28(%esp)
movl $-EOVERFLOW, %eax
jne overflow
#endif
movl $__NR_fadvise64, %eax /* Syscall number in %eax. */
movl 16(%esp), %ebx
movl 20(%esp), %ecx
movl 24(%esp), %edx
movl 28(%esp), %esi
movl 32(%esp), %edi
/* Do the system call trap. */
int $0x80
overflow:
/* Restore regs */
popl %edi
popl %esi
popl %ebx
/* Returns 0 on success, else an error code. */
negl %eax
#endif
/* Successful; return the syscall's value. */
ret
.size posix_fadvise64,.-posix_fadvise64
/*
** libc_hidden_def(__libc_posix_fadvise64)
** #if defined __UCLIBC_HAS_LFS__ && defined __UCLIBC_HAS_ADVANCED_REALTIME__
** weak_alias(__libc_posix_fadvise64,posix_fadvise64)
** #endif
*/
#endif
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