107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
/* $NetBSD: linux_oldmmap.c,v 1.72 2009/08/18 02:04:14 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Frank van der Linden and Eric Haszlakiewicz.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: linux_oldmmap.c,v 1.72 2009/08/18 02:04:14 christos Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/mount.h>
|
|
|
|
#include <sys/sched.h>
|
|
#include <sys/syscallargs.h>
|
|
|
|
#include <uvm/uvm_param.h>
|
|
|
|
#ifdef __amd64__
|
|
#include <compat/netbsd32/netbsd32.h>
|
|
|
|
#include <compat/linux32/common/linux32_types.h>
|
|
#include <compat/linux32/common/linux32_machdep.h>
|
|
#endif
|
|
|
|
#include <compat/linux/common/linux_types.h>
|
|
#include <compat/linux/common/linux_mmap.h>
|
|
#include <compat/linux/common/linux_oldmmap.h>
|
|
#include <compat/linux/common/linux_signal.h>
|
|
#include <compat/linux/common/linux_ipc.h>
|
|
#include <compat/linux/common/linux_sem.h>
|
|
|
|
#include <compat/linux/linux_syscallargs.h>
|
|
|
|
/* Used on: arm, i386, m68k */
|
|
/* Used for linux32 on: amd64 */
|
|
/* Not used on: alpha, mips, pcc, sparc, sparc64 */
|
|
|
|
#undef DPRINTF
|
|
#ifdef DEBUG_LINUX
|
|
#define DPRINTF(a) uprintf a
|
|
#else
|
|
#define DPRINTF(a)
|
|
#endif
|
|
|
|
/*
|
|
* Linux wants to pass everything to a syscall in registers.
|
|
* However mmap() has 6 of them. Oops: out of register error.
|
|
* They just pass everything in a structure.
|
|
*/
|
|
int
|
|
linux_sys_old_mmap(struct lwp *l, const struct linux_sys_old_mmap_args *uap, register_t *retval)
|
|
{
|
|
/* {
|
|
syscallarg(struct linux_oldmmap *) lmp;
|
|
} */
|
|
struct linux_oldmmap lmap;
|
|
struct linux_sys_mmap_args nlmap;
|
|
int error;
|
|
|
|
if ((error = copyin(SCARG(uap, lmp), &lmap, sizeof lmap)))
|
|
return error;
|
|
|
|
if (lmap.lm_offset & PAGE_MASK) {
|
|
DPRINTF(("old_mmap: 0x%x\n", lmap.lm_offset));
|
|
return EINVAL;
|
|
}
|
|
|
|
SCARG(&nlmap,addr) = lmap.lm_addr;
|
|
SCARG(&nlmap,len) = lmap.lm_len;
|
|
SCARG(&nlmap,prot) = lmap.lm_prot;
|
|
SCARG(&nlmap,flags) = lmap.lm_flags;
|
|
SCARG(&nlmap,fd) = lmap.lm_fd;
|
|
SCARG(&nlmap,offset) = lmap.lm_offset;
|
|
error = linux_sys_mmap(l, &nlmap, retval);
|
|
DPRINTF(("old_mmap(%#x, %u, %u, %u, %d, %u) = %d\n",
|
|
lmap.lm_addr, lmap.lm_len, lmap.lm_prot, lmap.lm_flags,
|
|
lmap.lm_fd, lmap.lm_offset, error));
|
|
return error;
|
|
}
|
|
|