1 /* $OpenBSD: frame.h,v 1.11 2024/04/08 20:07:53 miod Exp $ */ 2 /* $NetBSD: frame.h,v 1.9 2001/03/04 09:28:35 mrg Exp $ */ 3 4 /* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This software was developed by the Computer Systems Engineering group 9 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 10 * contributed to Berkeley. 11 * 12 * All advertising materials mentioning features or use of this software 13 * must display the following acknowledgement: 14 * This product includes software developed by the University of 15 * California, Lawrence Berkeley Laboratory. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)frame.h 8.1 (Berkeley) 6/11/93 42 */ 43 44 #ifndef _MACHINE_FRAME_H_ 45 #define _MACHINE_FRAME_H_ 46 47 /* 48 * CC64FSZ (C Compiler 64-bit Frame SiZe) is the size of a stack frame used 49 * by the compiler in 64-bit mode. It is (16)*8; space for 8 ins, 8 outs. 50 */ 51 #define CC64FSZ 176 52 53 /* 54 * v9 stacks all have a bias of 2047 added to the %sp and %fp, so you can easily 55 * detect it by testing the register for an odd value. Why 2K-1 I don't know. 56 */ 57 #define BIAS (2048-1) 58 59 #if defined(_KERNEL) && !defined(_LOCORE) 60 61 /* 62 * Sparc v9 stack frame format. 63 * 64 * Note that the contents of each stack frame may be held only in 65 * machine register windows. In order to get an accurate picture 66 * of the frame, you must first force the kernel to write any such 67 * windows to the stack. 68 * 69 * V9 frames have an odd bias, so you can tell a v9 frame from 70 * a v8 frame by testing the stack pointer's lsb. 71 */ 72 struct frame { 73 int64_t fr_local[8]; /* space to save locals (%l0..%l7) */ 74 int64_t fr_arg[6]; /* space to save arguments (%i0..%i5) */ 75 u_int64_t fr_fp; /* space to save frame pointer (%i6) */ 76 u_int64_t fr_pc; /* space to save return pc (%i7) */ 77 /* 78 * SVR4 reserves a bunch of extra stuff. 79 */ 80 int64_t fr_argd[6]; /* `register save area' (lunacy) */ 81 int64_t fr_argx[0]; /* arg extension (args 7..n; variable size) */ 82 }; 83 84 #define v9next_frame(f) ((struct frame*)(f->fr_fp+BIAS)) 85 86 /* 87 * The v9 trapframe. 88 */ 89 struct trapframe { 90 int64_t tf_tstate; /* tstate register */ 91 int64_t tf_pc; /* return pc */ 92 int64_t tf_npc; /* return npc */ 93 int tf_y; /* %y register -- 32-bits */ 94 short tf_tt; /* What type of trap this was */ 95 char tf_pil; /* What IRQ we're handling */ 96 char tf_oldpil; /* What our old SPL was */ 97 int64_t tf_global[8]; /* global registers in trap's caller */ 98 int64_t tf_out[8]; /* output registers in trap's caller */ 99 int64_t tf_local[8]; /* local registers in trap's caller */ 100 int64_t tf_in[8]; /* in registers in trap's caller (for debug) */ 101 }; 102 103 #endif /* _KERNEL && !_LOCORE */ 104 105 #endif /* _MACHINE_FRAME_H_ */ 106