/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1998, Apple Computer Inc. All rights reserved. * * File: _setjmp.h * * Defines for register offsets in the save area. * */ /* NOTE: jmp_bufs are only 4-byte aligned. This means we * need to pad before the VR and FPR save areas, so that they * can be naturally aligned in the buffer. In case a jmp_buf * is bcopy'd to a different alignment between the setjmp * and longjmp, we need to save the jmp_buf address in the * jmp_buf at setjmp time, so we can realign before reloading. * * ALSO NOTE: the typedef for jmpbufs in <ppc/setjmp.h> is * 192 ints (0x300 bytes) long, due to incorrectly assuming * that we need to save all 32 VRs in a jmpbuf. This is * fortuitous, because when it came time to add additional * fields and expand GPRs for 64-bit mode, there was plenty * of unused space! */ /* 32-bit-mode layout */ #if defined(__ppc__) #define JMP_r1 0x00 #define JMP_r2 0x04 #define JMP_r13 0x08 #define JMP_r14 0x0c #define JMP_r15 0x10 #define JMP_r16 0x14 #define JMP_r17 0x18 #define JMP_r18 0x1c #define JMP_r19 0x20 #define JMP_r20 0x24 #define JMP_r21 0x28 #define JMP_r22 0x2c #define JMP_r23 0x30 #define JMP_r24 0x34 #define JMP_r25 0x38 #define JMP_r26 0x3c #define JMP_r27 0x40 #define JMP_r28 0x44 #define JMP_r29 0x48 #define JMP_r30 0x4c #define JMP_r31 0x50 #define JMP_lr 0x54 #define JMP_cr 0x58 #define JMP_SIGFLAG 0x5c #define JMP_sig 0x60 /* reserve 8 bytes for sigmask */ #define JMP_fpscr 0x68 /* reserve 8 bytes for FPSCR too */ #define JMP_vrsave 0x70 #define JMP_addr_at_setjmp 0x74 /* 12 bytes padding here */ #define JMP_vr_base_addr 0x84 /* save room for 12 VRs (v20-v31), or 0xC0 bytes */ #define JMP_fp_base_addr 0x144 /* save room for 18 FPRs (f14-f31), or 0x90 bytes */ #define JMP_ss_flags 0x1d4 #define JMP_buf_end 0x1d8 /* 64-bit-mode layout */ #elif defined(__ppc64__) #define JMP_r1 0x00 #define JMP_r2 0x08 #define JMP_r13 0x10 #define JMP_r14 0x18 #define JMP_r15 0x20 #define JMP_r16 0x28 #define JMP_r17 0x30 #define JMP_r18 0x38 #define JMP_r19 0x40 #define JMP_r20 0x48 #define JMP_r21 0x50 #define JMP_r22 0x58 #define JMP_r23 0x60 #define JMP_r24 0x68 #define JMP_r25 0x70 #define JMP_r26 0x78 #define JMP_r27 0x80 #define JMP_r28 0x88 #define JMP_r29 0x90 #define JMP_r30 0x98 #define JMP_r31 0xa0 #define JMP_lr 0xa8 #define JMP_cr 0xb0 #define JMP_sig 0xb8 #define JMP_SIGFLAG 0xc0 #define JMP_fpscr 0xc8 #define JMP_vrsave 0xd0 #define JMP_addr_at_setjmp 0xd8 /* 12 bytes padding here */ #define JMP_vr_base_addr 0x0ec /* save room for 12 VRs (v20-v31), or 0xC0 bytes */ #define JMP_fp_base_addr 0x1ac /* save room for 18 FPRs (f14-f31), or 0x90 bytes */ #define JMP_ss_flags 0x23c #define JMP_buf_end 0x240 #else #error architecture not supported #endif