From a9752043dd652d0fb4addf947b76e57c588f430c Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Mon, 22 Jul 2002 17:11:58 +0000 Subject: Add some syscalls which I moved out of syscalls.c -Erik --- libc/sysdeps/linux/common/llseek.c | 63 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 libc/sysdeps/linux/common/llseek.c (limited to 'libc/sysdeps/linux/common/llseek.c') diff --git a/libc/sysdeps/linux/common/llseek.c b/libc/sysdeps/linux/common/llseek.c new file mode 100644 index 000000000..63534fa71 --- /dev/null +++ b/libc/sysdeps/linux/common/llseek.c @@ -0,0 +1,63 @@ +/* vi: set sw=4 ts=4: */ +/* + * llseek/lseek64 syscall for uClibc + * + * Copyright (C) 2002 by Erik Andersen + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program 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 Library General Public License + * for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#define _GNU_SOURCE +#define _LARGEFILE64_SOURCE +#include +#undef __OPTIMIZE__ +/* We absolutely do _NOT_ want interfaces silently + * * * renamed under us or very bad things will happen... */ +#ifdef __USE_FILE_OFFSET64 +# undef __USE_FILE_OFFSET64 +#endif +#include +#include +#include + + +#if defined __NR__llseek && defined __UCLIBC_HAVE_LFS__ + +#ifndef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) __syscall_llseek (args) +#define __NR___syscall_llseek __NR__llseek +static inline _syscall5(int, __syscall_llseek, int, fd, off_t, offset_hi, + off_t, offset_lo, loff_t *, result, int, whence); +#endif + +loff_t __libc_lseek64(int fd, loff_t offset, int whence) +{ + loff_t result; + return(loff_t)(INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 32), + (off_t) (offset & 0xffffffff), &result, whence) ?: result); +} +weak_alias(__libc_lseek64, llseek); +weak_alias(__libc_lseek64, lseek64); +#else +extern __off_t __libc_lseek(int fildes, off_t offset, int whence); +loff_t __libc_lseek64(int fd, loff_t offset, int whence) +{ + return(loff_t)(__libc_lseek(fd, (off_t) (offset & 0xffffffff), whence)); +} +weak_alias(__libc_lseek, llseek) +weak_alias(__libc_lseek, lseek64) +#endif + -- cgit v1.2.3