frame.h revision 1.1.2.2
1 1.1.2.2 thorpej /* $NetBSD: frame.h,v 1.1.2.2 2002/12/11 06:29:11 thorpej Exp $ */ 2 1.1.2.2 thorpej 3 1.1.2.2 thorpej /* 4 1.1.2.2 thorpej * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 1.1.2.2 thorpej * Copyright (C) 1995, 1996 TooLs GmbH. 6 1.1.2.2 thorpej * All rights reserved. 7 1.1.2.2 thorpej * 8 1.1.2.2 thorpej * Redistribution and use in source and binary forms, with or without 9 1.1.2.2 thorpej * modification, are permitted provided that the following conditions 10 1.1.2.2 thorpej * are met: 11 1.1.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 12 1.1.2.2 thorpej * notice, this list of conditions and the following disclaimer. 13 1.1.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 15 1.1.2.2 thorpej * documentation and/or other materials provided with the distribution. 16 1.1.2.2 thorpej * 3. All advertising materials mentioning features or use of this software 17 1.1.2.2 thorpej * must display the following acknowledgement: 18 1.1.2.2 thorpej * This product includes software developed by TooLs GmbH. 19 1.1.2.2 thorpej * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 1.1.2.2 thorpej * derived from this software without specific prior written permission. 21 1.1.2.2 thorpej * 22 1.1.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 1.1.2.2 thorpej * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.1.2.2 thorpej * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.1.2.2 thorpej * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 1.1.2.2 thorpej * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 1.1.2.2 thorpej * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 1.1.2.2 thorpej * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 1.1.2.2 thorpej * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 1.1.2.2 thorpej * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 1.1.2.2 thorpej * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 1.1.2.2 thorpej */ 33 1.1.2.2 thorpej #ifndef _MACHINE_FRAME_H_ 34 1.1.2.2 thorpej #define _MACHINE_FRAME_H_ 35 1.1.2.2 thorpej 36 1.1.2.2 thorpej #include <machine/types.h> 37 1.1.2.2 thorpej 38 1.1.2.2 thorpej /* 39 1.1.2.2 thorpej * We have to save all registers on every trap, because 40 1.1.2.2 thorpej * 1. user could attach this process every time 41 1.1.2.2 thorpej * 2. we must be able to restore all user registers in case of fork 42 1.1.2.2 thorpej * Actually, we do not save the fp registers on trap, since 43 1.1.2.2 thorpej * these are not used by the kernel. They are saved only when switching 44 1.1.2.2 thorpej * between processes using the FPU. 45 1.1.2.2 thorpej * 46 1.1.2.2 thorpej * Change ordering to cluster together these register_t's. XXX 47 1.1.2.2 thorpej */ 48 1.1.2.2 thorpej struct trapframe { 49 1.1.2.2 thorpej register_t fixreg[32]; 50 1.1.2.2 thorpej register_t lr; 51 1.1.2.2 thorpej int cr; 52 1.1.2.2 thorpej int xer; 53 1.1.2.2 thorpej register_t ctr; 54 1.1.2.2 thorpej register_t srr0; 55 1.1.2.2 thorpej register_t srr1; 56 1.1.2.2 thorpej register_t dear; /* dar & dsisr are only filled on a DSI trap */ 57 1.1.2.2 thorpej int esr; 58 1.1.2.2 thorpej int exc; 59 1.1.2.2 thorpej int pid; 60 1.1.2.2 thorpej }; 61 1.1.2.2 thorpej /* 62 1.1.2.2 thorpej * This is to ensure alignment of the stackpointer 63 1.1.2.2 thorpej */ 64 1.1.2.2 thorpej #define FRAMELEN roundup(sizeof(struct trapframe) + 8, 16) 65 1.1.2.2 thorpej #define trapframe(p) ((struct trapframe *)((char *)(p)->p_addr + USPACE - FRAMELEN + 8)) 66 1.1.2.2 thorpej 67 1.1.2.2 thorpej struct switchframe { 68 1.1.2.2 thorpej register_t sp; 69 1.1.2.2 thorpej int fill; 70 1.1.2.2 thorpej int user_vsid; 71 1.1.2.2 thorpej int cr; 72 1.1.2.2 thorpej register_t fixreg2; 73 1.1.2.2 thorpej register_t fixreg[19]; /* R13-R31 */ 74 1.1.2.2 thorpej }; 75 1.1.2.2 thorpej 76 1.1.2.2 thorpej struct clockframe { 77 1.1.2.2 thorpej register_t srr1; 78 1.1.2.2 thorpej register_t srr0; 79 1.1.2.2 thorpej int pri; 80 1.1.2.2 thorpej int depth; 81 1.1.2.2 thorpej }; 82 1.1.2.2 thorpej 83 1.1.2.2 thorpej /* 84 1.1.2.2 thorpej * Call frame for PowerPC used during fork. 85 1.1.2.2 thorpej */ 86 1.1.2.2 thorpej struct callframe { 87 1.1.2.2 thorpej register_t sp; 88 1.1.2.2 thorpej register_t lr; 89 1.1.2.2 thorpej register_t r30; 90 1.1.2.2 thorpej register_t r31; 91 1.1.2.2 thorpej }; 92 1.1.2.2 thorpej 93 1.1.2.2 thorpej #endif /* _MACHINE_FRAME_H_ */ 94
Indexes created Thu Oct 16 14:10:15 GMT 2025