1 /* $NetBSD: linux_oldmmap.c,v 1.58 2002/03/29 20:49:40 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden and Eric Haszlakiewicz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: linux_oldmmap.c,v 1.58 2002/03/29 20:49:40 christos Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/mount.h> 45 46 #include <sys/syscallargs.h> 47 48 #include <compat/linux/common/linux_types.h> 49 #include <compat/linux/common/linux_mmap.h> 50 #include <compat/linux/common/linux_oldmmap.h> 51 #include <compat/linux/common/linux_signal.h> 52 53 #include <compat/linux/linux_syscallargs.h> 54 55 /* Used on: arm, i386, m68k */ 56 /* Not used on: alpha, mips, pcc, sparc, sparc64 */ 57 58 #undef DPRINTF 59 #ifdef DEBUG_LINUX 60 #define DPRINTF(a) uprintf a 61 #else 62 #define DPRINTF(a) 63 #endif 64 65 /* 66 * Linux wants to pass everything to a syscall in registers. 67 * However mmap() has 6 of them. Oops: out of register error. 68 * They just pass everything in a structure. 69 */ 70 int 71 linux_sys_old_mmap(p, v, retval) 72 struct proc *p; 73 void *v; 74 register_t *retval; 75 { 76 struct linux_sys_old_mmap_args /* { 77 syscallarg(struct linux_oldmmap *) lmp; 78 } */ *uap = v; 79 struct linux_oldmmap lmap; 80 struct linux_sys_mmap_args nlmap; 81 int error; 82 83 if ((error = copyin(SCARG(uap, lmp), &lmap, sizeof lmap))) 84 return error; 85 86 SCARG(&nlmap,addr) = (unsigned long)lmap.lm_addr; 87 SCARG(&nlmap,len) = lmap.lm_len; 88 SCARG(&nlmap,prot) = lmap.lm_prot; 89 SCARG(&nlmap,flags) = lmap.lm_flags; 90 SCARG(&nlmap,fd) = lmap.lm_fd; 91 SCARG(&nlmap,offset) = (unsigned)lmap.lm_pos; 92 DPRINTF(("old_mmap(%p, %d, %d, %d, %d, %d)\n", 93 lmap.lm_addr, lmap.lm_len, lmap.lm_prot, lmap.lm_flags, 94 lmap.lm_fd, lmap.lm_pos)); 95 return linux_sys_mmap(p, &nlmap, retval); 96 } 97 98