projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 37839358 A |
6 | * The contents of this file constitute Original Code as defined in and |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 1c79356b | 11 | * |
| 37839358 A |
12 | * This Original Code and all software distributed under the License are |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 37839358 A |
16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 1c79356b A |
19 | * |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * @OSF_FREE_COPYRIGHT@ | |
| 24 | */ | |
| 25 | ||
| 26 | #define VERBOSE 0 | |
| 27 | ||
| 28 | #include <ppc/setjmp.h> | |
| 29 | ||
| 30 | int recursed(jmp_buf_t *bufp, int retval, int depth) | |
| 31 | { | |
| 32 | int mumbojumbo[16]; | |
| 33 | int i; | |
| 34 | ||
| 35 | #if VERBOSE | |
| 36 | for (i=0;i<depth;i++) | |
| 37 | printf(" "); | |
| 38 | printf("in recursed(0x%x,%d,%d)\n",bufp,retval,depth); | |
| 39 | #endif | |
| 40 | if (depth == 0) { | |
| 41 | #if VERBOSE | |
| 42 | printf("LONGJUMPING from depth %d to buffer at 0x%x!\n",retval, bufp); | |
| 43 | #endif | |
| 44 | _longjmp(bufp, retval); | |
| 45 | printf("SHOULDN'T GET HERE\n"); | |
| 46 | } else { | |
| 47 | recursed(bufp,retval,depth-1); | |
| 48 | } | |
| 49 | return mumbojumbo[15]=-1; /* make sure we generate our own frame */ | |
| 50 | } | |
| 51 | ||
| 52 | int testjump() | |
| 53 | { | |
| 54 | jmp_buf_t buf; | |
| 55 | int val; | |
| 56 | int i; | |
| 57 | ||
| 58 | printf("calling setjmp\n"); | |
| 59 | ||
| 60 | val = _setjmp(&buf); | |
| 61 | #if VERBOSE | |
| 62 | for (i=0; i<64; i++) { | |
| 63 | if ((i % 8) == 0) printf("\n%2d :",i); | |
| 64 | printf(" %8x",buf.jmp_buf[i]); | |
| 65 | } | |
| 66 | #endif | |
| 67 | printf("\nsetjmp returned %d, structure at 0x%x\n",val,&buf); | |
| 68 | ||
| 69 | if (val < 5) | |
| 70 | recursed(&buf,val+1,val+1); | |
| 71 | ||
| 72 | printf("returning from setjmp/longjmp test\n"); | |
| 73 | } | |
| 74 |