frame.h revision 139825
1139825Simp/*- 268549Sbenno * Copyright (C) 1995, 1996 Wolfgang Solfrank. 368549Sbenno * Copyright (C) 1995, 1996 TooLs GmbH. 468549Sbenno * All rights reserved. 568549Sbenno * 668549Sbenno * Redistribution and use in source and binary forms, with or without 768549Sbenno * modification, are permitted provided that the following conditions 868549Sbenno * are met: 968549Sbenno * 1. Redistributions of source code must retain the above copyright 1068549Sbenno * notice, this list of conditions and the following disclaimer. 1168549Sbenno * 2. Redistributions in binary form must reproduce the above copyright 1268549Sbenno * notice, this list of conditions and the following disclaimer in the 1368549Sbenno * documentation and/or other materials provided with the distribution. 1468549Sbenno * 3. All advertising materials mentioning features or use of this software 1568549Sbenno * must display the following acknowledgement: 1668549Sbenno * This product includes software developed by TooLs GmbH. 1768549Sbenno * 4. The name of TooLs GmbH may not be used to endorse or promote products 1868549Sbenno * derived from this software without specific prior written permission. 1968549Sbenno * 2068549Sbenno * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 2168549Sbenno * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2268549Sbenno * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2368549Sbenno * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2468549Sbenno * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2568549Sbenno * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 2668549Sbenno * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 2768549Sbenno * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 2868549Sbenno * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 2968549Sbenno * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3070585Sobrien * 3177944Sobrien * $NetBSD: frame.h,v 1.2 1999/01/10 10:13:15 tsubai Exp $ 3270585Sobrien * $FreeBSD: head/sys/powerpc/include/frame.h 139825 2005-01-07 02:29:27Z imp $ 3368549Sbenno */ 3470585Sobrien 3568549Sbenno#ifndef _MACHINE_FRAME_H_ 3668549Sbenno#define _MACHINE_FRAME_H_ 3768549Sbenno 38103614Sgrehan#include <sys/types.h> 3968549Sbenno 4068549Sbenno/* 4168549Sbenno * We have to save all registers on every trap, because 4268549Sbenno * 1. user could attach this process every time 4368549Sbenno * 2. we must be able to restore all user registers in case of fork 4468549Sbenno * Actually, we do not save the fp registers on trap, since 4568549Sbenno * these are not used by the kernel. They are saved only when switching 4668549Sbenno * between processes using the FPU. 4768549Sbenno * 4868549Sbenno * Change ordering to cluster together these register_t's. XXX 4968549Sbenno */ 5068549Sbennostruct trapframe { 5168549Sbenno register_t fixreg[32]; 5268549Sbenno register_t lr; 5368549Sbenno int cr; 5468549Sbenno int xer; 5568549Sbenno register_t ctr; 5668549Sbenno register_t srr0; 5768549Sbenno register_t srr1; 5870585Sobrien register_t dar; /* dar & dsisr are only filled on a DSI trap */ 5968549Sbenno int dsisr; 6068549Sbenno int exc; 6168549Sbenno}; 6268549Sbenno/* 6368549Sbenno * This is to ensure alignment of the stackpointer 6468549Sbenno */ 6568549Sbenno#define FRAMELEN roundup(sizeof(struct trapframe) + 8, 16) 6683682Smp#define trapframe(td) ((td)->td_frame) 6768549Sbenno 6868549Sbennostruct switchframe { 6968549Sbenno register_t sp; 7091467Sbenno register_t fill; 7191467Sbenno register_t user_sr; 7291467Sbenno register_t cr; 7368549Sbenno register_t fixreg2; 7468549Sbenno register_t fixreg[19]; /* R13-R31 */ 7568549Sbenno}; 7668549Sbenno 7768549Sbennostruct clockframe { 7868549Sbenno register_t srr1; 7968549Sbenno register_t srr0; 8068549Sbenno int pri; 8168549Sbenno int depth; 8268549Sbenno}; 8368549Sbenno 8468549Sbenno/* 8568549Sbenno * Call frame for PowerPC used during fork. 8668549Sbenno */ 8768549Sbennostruct callframe { 88132520Sgrehan register_t cf_dummy_fp; /* dummy frame pointer */ 89132520Sgrehan register_t cf_lr; /* space for link register save */ 9091467Sbenno register_t cf_func; 9191467Sbenno register_t cf_arg0; 9291467Sbenno register_t cf_arg1; 9368549Sbenno}; 9468549Sbenno 9595719Sbenno#define IFRAMELEN sizeof(struct intrframe) 9695719Sbennostruct intrframe { 9795719Sbenno register_t r1; /* 0 */ 9895719Sbenno register_t _pad4; /* 4 */ 9995719Sbenno /* 10095719Sbenno * The next 4 fields are "clockframe" 10195719Sbenno */ 10295719Sbenno register_t srr1; /* 8 */ 10395719Sbenno register_t srr0; /* 12 */ 10495719Sbenno int pri; /* 16 */ 10595719Sbenno int intr_depth; /* 20 */ 10695719Sbenno register_t vrsave; /* 24 */ 10795719Sbenno register_t ctr; /* 28 */ 10895719Sbenno register_t xer; /* 32 */ 10995719Sbenno register_t cr; /* 36 */ 11095719Sbenno register_t lr; /* 40 */ 11195719Sbenno register_t r12; /* 44 */ 11295719Sbenno register_t r11; /* 48 */ 11395719Sbenno register_t r10; /* 52 */ 11495719Sbenno register_t r9; /* 56 */ 11595719Sbenno register_t r8; /* 60 */ 11695719Sbenno register_t r7; /* 64 */ 11795719Sbenno register_t r6; /* 68 */ 11895719Sbenno register_t r5; /* 72 */ 11995719Sbenno register_t r4; /* 76 */ 12095719Sbenno register_t r3; /* 80 */ 12195719Sbenno register_t r0; /* 84 */ 12295719Sbenno}; 12395719Sbenno 12495719Sbenno#define SPFRAMELEN sizeof(struct spillframe) 12595719Sbennostruct spillframe { 12695719Sbenno register_t r1; /* 0 */ 12795719Sbenno register_t _pad4; /* 4 */ 12895719Sbenno register_t r12; /* 8 */ 12995719Sbenno register_t r11; /* 12 */ 13095719Sbenno register_t r10; /* 16 */ 13195719Sbenno register_t r9; /* 20 */ 13295719Sbenno register_t r8; /* 24 */ 13395719Sbenno register_t r7; /* 28 */ 13495719Sbenno register_t r6; /* 32 */ 13595719Sbenno register_t r5; /* 36 */ 13695719Sbenno register_t r4; /* 40 */ 13795719Sbenno register_t r3; /* 44 */ 13895719Sbenno register_t r0; /* 48 */ 13995719Sbenno}; 14095719Sbenno 14197397Sbenno/* Definitions for syscalls */ 14297397Sbenno#define FIRSTARG 3 /* first arg in reg 3 */ 14397397Sbenno#define NARGREG 8 /* 8 args in regs */ 14497397Sbenno#define MOREARGS(sp) ((caddr_t)((int)(sp) + 8)) /* more args go here */ 14597397Sbenno 14668549Sbenno#endif /* _MACHINE_FRAME_H_ */ 147