glibc/sysdeps/unix/sysv/linux/arm/mmap.S
1998-11-16 12:01:02 +00:00

41 lines
1.3 KiB
ArmAsm

/* Copyright (C) 1998 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
.text
ENTRY (__mmap)
/* Because we can only get five args through the syscall interface, and
mmap() takes six, we need to build a parameter block and pass its
address instead. The 386 port does a similar trick. */
mov ip, sp
stmdb ip!, {a1-a4}
mov a1, ip
swi SYS_ify (mmap)
cmn r0, $4096
bhs PLTJMP(syscall_error);
ret
PSEUDO_END (__mmap)
weak_alias (__mmap, mmap)
weak_alias (__mmap, mmap64)