1 /* $NetBSD: syscallemu.h,v 1.1 2012/01/05 13:26:51 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2012 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _HAVE_SYSCALLEMU_H 30 #define _HAVE_SYSCALLEMU_H 31 32 #include <sys/cdefs.h> 33 #include <sys/syscall.h> 34 #include <sys/syscallargs.h> 35 36 struct proc; 37 38 /* 39 * Process specific syscallemu configuration 40 */ 41 struct syscallemu_data { 42 vaddr_t sce_user_start; 43 vaddr_t sce_user_end; 44 void *sce_md_syscall; 45 }; 46 47 /* 48 * Get process specific syscallemu data 49 */ 50 struct syscallemu_data * syscallemu_getsce(struct proc *); 51 52 /* 53 * Set process specific syscallemu data 54 */ 55 void syscallemu_setsce(struct proc *, struct syscallemu_data *); 56 57 /* 58 * MD specific syscallemu syscall setup (in syscallemu_${MACHINE_ARCH}.c) 59 */ 60 void * md_syscallemu(struct proc *); 61 62 /* syscall: "syscallemu" ret: "int" args: "uintptr_t" "uintptr_t" */ 63 #define SYS_syscallemu 511 64 65 struct sys_syscallemu_args { 66 syscallarg(uintptr_t) user_start; 67 syscallarg(uintptr_t) user_end; 68 }; 69 check_syscall_args(sys_syscallemu); 70 71 int sys_syscallemu(struct lwp *, const struct sys_syscallemu_args *, 72 register_t *); 73 74 __CTASSERT(SYS_syscallemu >= SYS_MAXSYSCALL); 75 __CTASSERT(SYS_syscallemu < SYS_NSYSENT); 76 77 #endif /* !_HAVE_SYSCALLEMU_H */ 78