| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 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. |
| | 11 | * |
| | 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 |
| | 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 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. |
| | 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 | |
projects / apple / xnu.git / blame_incremental