/* 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)