projects / apple / libc.git / blame
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|---|---|---|
| e9ce8d39 A |
1 | /* |
| 2 | * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 734aad71 A |
6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| e9ce8d39 A |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 734aad71 A |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| e9ce8d39 A |
20 | * |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | /* | |
| 24 | * Copyright (c) 1998, Apple Computer Inc. All rights reserved. | |
| 25 | * | |
| 26 | * File: _setjmp.h | |
| 27 | * | |
| 28 | * Defines for register offsets in the save area. | |
| 29 | * | |
| 30 | */ | |
| 31 | ||
| 3b2a1fe8 A |
32 | /* NOTE: jmp_bufs are only 4-byte aligned. This means we |
| 33 | * need to pad before the VR and FPR save areas, so that they | |
| 34 | * can be naturally aligned in the buffer. In case a jmp_buf | |
| 35 | * is bcopy'd to a different alignment between the setjmp | |
| 36 | * and longjmp, we need to save the jmp_buf address in the | |
| 37 | * jmp_buf at setjmp time, so we can realign before reloading. | |
| 59e0d9fe A |
38 | * |
| 39 | * ALSO NOTE: the typedef for jmpbufs in <ppc/setjmp.h> is | |
| 40 | * 192 ints (0x300 bytes) long, due to incorrectly assuming | |
| 41 | * that we need to save all 32 VRs in a jmpbuf. This is | |
| 42 | * fortuitous, because when it came time to add additional | |
| 43 | * fields and expand GPRs for 64-bit mode, there was plenty | |
| 44 | * of unused space! | |
| 3b2a1fe8 A |
45 | */ |
| 46 | ||
| 59e0d9fe A |
47 | /* 32-bit-mode layout */ |
| 48 | ||
| 49 | #if defined(__ppc__) | |
| 50 | ||
| e9ce8d39 A |
51 | #define JMP_r1 0x00 |
| 52 | #define JMP_r2 0x04 | |
| 53 | #define JMP_r13 0x08 | |
| 54 | #define JMP_r14 0x0c | |
| 55 | #define JMP_r15 0x10 | |
| 56 | #define JMP_r16 0x14 | |
| 57 | #define JMP_r17 0x18 | |
| 58 | #define JMP_r18 0x1c | |
| 59 | #define JMP_r19 0x20 | |
| 60 | #define JMP_r20 0x24 | |
| 61 | #define JMP_r21 0x28 | |
| 62 | #define JMP_r22 0x2c | |
| 63 | #define JMP_r23 0x30 | |
| 64 | #define JMP_r24 0x34 | |
| 65 | #define JMP_r25 0x38 | |
| 66 | #define JMP_r26 0x3c | |
| 67 | #define JMP_r27 0x40 | |
| 68 | #define JMP_r28 0x44 | |
| 69 | #define JMP_r29 0x48 | |
| 70 | #define JMP_r30 0x4c | |
| 71 | #define JMP_r31 0x50 | |
| 72 | #define JMP_lr 0x54 | |
| 73 | #define JMP_cr 0x58 | |
| 59e0d9fe A |
74 | #define JMP_SIGFLAG 0x5c |
| 75 | #define JMP_sig 0x60 /* reserve 8 bytes for sigmask */ | |
| 76 | #define JMP_fpscr 0x68 /* reserve 8 bytes for FPSCR too */ | |
| 3b2a1fe8 A |
77 | #define JMP_vrsave 0x70 |
| 78 | #define JMP_addr_at_setjmp 0x74 | |
| 79 | /* 12 bytes padding here */ | |
| 80 | #define JMP_vr_base_addr 0x84 | |
| 81 | /* save room for 12 VRs (v20-v31), or 0xC0 bytes */ | |
| 82 | #define JMP_fp_base_addr 0x144 | |
| 83 | /* save room for 18 FPRs (f14-f31), or 0x90 bytes */ | |
| 224c7076 A |
84 | #define JMP_ss_flags 0x1d4 |
| 85 | #define JMP_buf_end 0x1d8 | |
| 3b2a1fe8 | 86 | |
| 59e0d9fe A |
87 | |
| 88 | /* 64-bit-mode layout */ | |
| 89 | ||
| 90 | #elif defined(__ppc64__) | |
| 91 | ||
| 92 | #define JMP_r1 0x00 | |
| 93 | #define JMP_r2 0x08 | |
| 94 | #define JMP_r13 0x10 | |
| 95 | #define JMP_r14 0x18 | |
| 96 | #define JMP_r15 0x20 | |
| 97 | #define JMP_r16 0x28 | |
| 98 | #define JMP_r17 0x30 | |
| 99 | #define JMP_r18 0x38 | |
| 100 | #define JMP_r19 0x40 | |
| 101 | #define JMP_r20 0x48 | |
| 102 | #define JMP_r21 0x50 | |
| 103 | #define JMP_r22 0x58 | |
| 104 | #define JMP_r23 0x60 | |
| 105 | #define JMP_r24 0x68 | |
| 106 | #define JMP_r25 0x70 | |
| 107 | #define JMP_r26 0x78 | |
| 108 | #define JMP_r27 0x80 | |
| 109 | #define JMP_r28 0x88 | |
| 110 | #define JMP_r29 0x90 | |
| 111 | #define JMP_r30 0x98 | |
| 112 | #define JMP_r31 0xa0 | |
| 113 | #define JMP_lr 0xa8 | |
| 114 | #define JMP_cr 0xb0 | |
| 115 | #define JMP_sig 0xb8 | |
| 116 | #define JMP_SIGFLAG 0xc0 | |
| 117 | #define JMP_fpscr 0xc8 | |
| 118 | #define JMP_vrsave 0xd0 | |
| 119 | #define JMP_addr_at_setjmp 0xd8 | |
| 120 | /* 12 bytes padding here */ | |
| 121 | #define JMP_vr_base_addr 0x0ec | |
| 122 | /* save room for 12 VRs (v20-v31), or 0xC0 bytes */ | |
| 123 | #define JMP_fp_base_addr 0x1ac | |
| 124 | /* save room for 18 FPRs (f14-f31), or 0x90 bytes */ | |
| 224c7076 A |
125 | #define JMP_ss_flags 0x23c |
| 126 | #define JMP_buf_end 0x240 | |
| 59e0d9fe A |
127 | |
| 128 | #else | |
| 129 | #error architecture not supported | |
| 130 | #endif |