1 /* $NetBSD: pcb.h,v 1.12 2011/09/08 19:37:01 reinoud Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 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 _ARCH_USERMODE_INCLUDE_PCB_H 30 #define _ARCH_USERMODE_INCLUDE_PCB_H 31 32 #include <sys/cdefs.h> 33 #include <sys/ucontext.h> 34 35 /* 36 * Trap frame. Pushed onto the kernel stack on a trap (synchronous exception). 37 * XXX move to frame.h? 38 */ 39 40 //typedef ucontext_t trapframe; 41 42 struct pcb { 43 ucontext_t pcb_ucp; /* lwp switchframe */ 44 ucontext_t pcb_userland_ucp; /* userland switchframe */ 45 ucontext_t pcb_syscall_ucp; /* to switch to for syscall */ 46 47 bool pcb_needfree; 48 void * pcb_onfault; /* on fault handler */ 49 50 int pcb_errno; /* save/restore place */ 51 }; 52 53 #endif /* !_ARCH_USERMODE_INCLUDE_PCB_H */ 54