projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 8f6c56a5 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| 1c79356b | 5 | * |
| 8f6c56a5 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. The rights granted to you under the License | |
| 10 | * may not be used to create, or enable the creation or redistribution of, | |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any | |
| 13 | * terms of an Apple operating system software license agreement. | |
| 14 | * | |
| 15 | * Please obtain a copy of the License at | |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 17 | * | |
| 18 | * The Original Code and all software distributed under the License are | |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 23 | * Please see the License for the specific language governing rights and | |
| 8ad349bb | 24 | * limitations under the License. |
| 8f6c56a5 A |
25 | * |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
| 1c79356b A |
27 | */ |
| 28 | /* | |
| 29 | * @OSF_FREE_COPYRIGHT@ | |
| 30 | */ | |
| 31 | ||
| 32 | #define VERBOSE 0 | |
| 33 | ||
| 34 | #include <ppc/setjmp.h> | |
| 35 | ||
| 36 | int recursed(jmp_buf_t *bufp, int retval, int depth) | |
| 37 | { | |
| 38 | int mumbojumbo[16]; | |
| 39 | int i; | |
| 40 | ||
| 41 | #if VERBOSE | |
| 42 | for (i=0;i<depth;i++) | |
| 43 | printf(" "); | |
| 44 | printf("in recursed(0x%x,%d,%d)\n",bufp,retval,depth); | |
| 45 | #endif | |
| 46 | if (depth == 0) { | |
| 47 | #if VERBOSE | |
| 48 | printf("LONGJUMPING from depth %d to buffer at 0x%x!\n",retval, bufp); | |
| 49 | #endif | |
| 50 | _longjmp(bufp, retval); | |
| 51 | printf("SHOULDN'T GET HERE\n"); | |
| 52 | } else { | |
| 53 | recursed(bufp,retval,depth-1); | |
| 54 | } | |
| 55 | return mumbojumbo[15]=-1; /* make sure we generate our own frame */ | |
| 56 | } | |
| 57 | ||
| 58 | int testjump() | |
| 59 | { | |
| 60 | jmp_buf_t buf; | |
| 61 | int val; | |
| 62 | int i; | |
| 63 | ||
| 64 | printf("calling setjmp\n"); | |
| 65 | ||
| 66 | val = _setjmp(&buf); | |
| 67 | #if VERBOSE | |
| 68 | for (i=0; i<64; i++) { | |
| 69 | if ((i % 8) == 0) printf("\n%2d :",i); | |
| 70 | printf(" %8x",buf.jmp_buf[i]); | |
| 71 | } | |
| 72 | #endif | |
| 73 | printf("\nsetjmp returned %d, structure at 0x%x\n",val,&buf); | |
| 74 | ||
| 75 | if (val < 5) | |
| 76 | recursed(&buf,val+1,val+1); | |
| 77 | ||
| 78 | printf("returning from setjmp/longjmp test\n"); | |
| 79 | } | |
| 80 |