glibc/sysdeps/unix/sysv/linux/cris/mmap.S
Andreas Jaeger 41bdb6e20c Update to LGPL v2.1.
2001-07-06  Paul Eggert  <eggert@twinsun.com>

	* manual/argp.texi: Remove ignored LGPL copyright notice; it's
	not appropriate for documentation anyway.
	* manual/libc-texinfo.sh: "Library General Public License" ->
	"Lesser General Public License".

2001-07-06  Andreas Jaeger  <aj@suse.de>

	* All files under GPL/LGPL version 2: Place under LGPL version
	2.1.
2001-07-06 04:58:11 +00:00

69 lines
1.8 KiB
ArmAsm

/* Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001 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. */
#include <sysdep.h>
#include "kernel-features.h"
#include <asm/errno.h>
/* Rather than dragging in yet another kernel file, <asm/page.h>, we
define it here. Provide for easy override. */
#ifndef PAGE_SHIFT
#define PAGE_SHIFT 13
#endif
.syntax no_register_prefix
/* This is __ptr_t
__mmap (__ptr_t addr, size_t len, int prot, int flags, int fd, off_t offset) */
ENTRY (__mmap)
/* Only accept a offset (and address) being a multiple of PAGE_SIZE,
since we only pass the page part in the system call. */
move.d [sp+4],r9
btstq (PAGE_SHIFT - 1),r9
bne 1f
btstq (PAGE_SHIFT - 1),r10
bne 1f
lsrq PAGE_SHIFT,r9
move [sp],mof
move srp,[sp]
move r9,srp
movu.b SYS_ify (mmap2),r9
break 13
cmps.w -4096,r10
bhs 0f
move [sp],srp
Ret
nop
/* Local error handler. */
1:
movs.w -EINVAL,r10
/* Drop through into the ordinary error handler. */
PSEUDO_END (__mmap)
weak_alias (__mmap, mmap)