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/* Copyright (C) 2005, 2007 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., 51 Franklin Street - Fifth Floor,
Boston, MA 02110-1301, USA. */
#include "sysdep.h"
#include <sys/syscall.h>
#define PAGE_SHIFT 12
/* __ptr_t __mmap (a2 = __ptr_t addr,
a3 = size_t len,
a4 = int prot,
a5 = int flags,
a6 = int fd,
a7 = off_t offset) */
ENTRY (__mmap)
/* We only support mmap2 in the kernel, so shift offset by
page - size. */
mov a8, a6
mov a6, a2
movi a2, SYS_ify (mmap2)
srli a9, a7, PAGE_SHIFT
/* syscall (a2 = NR_mmap2,
a6 = arg0,
a3 = arg1,
a4 = arg2,
a5 = arg3,
a8 = arg4,
a9 = arg5) */
syscall
bltz a2, SYSCALL_ERROR_LABEL
.Lpseudo_end:
retw
PSEUDO_END (__mmap)
weak_alias (__mmap, mmap)
libc_hidden_weak (mmap)
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