projects / apple / dyld.git / blame
| Commit | Line | Data |
|---|---|---|
| bac542e6 A |
1 | /* |
| 2 | * Copyright (c) 2006 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 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 | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 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. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | #include <stdlib.h> // EXIT_SUCCESS | |
| 24 | #include <mach-o/dyld.h> | |
| 25 | #include <sys/sysctl.h> | |
| 26 | #include <unistd.h> | |
| 27 | ||
| 28 | #include "test.h" | |
| 29 | ||
| 30 | // | |
| 31 | // This builds an executable that needs > 2GB of stack | |
| 32 | // | |
| 33 | ||
| 39a8cd10 | 34 | |
| bac542e6 A |
35 | char* keepAlive; // to keep compiler from optimizing away stack variable |
| 36 | ||
| 37 | // keep recursing until desired stack size achieved | |
| 38 | void foo(unsigned long long stackSize, char* stackStart) | |
| 39 | { | |
| 40 | char buffer[32*1024*1024]; | |
| 41 | keepAlive = buffer; | |
| 39a8cd10 A |
42 | // only recursive if there is enough room for next buffer |
| 43 | intptr_t freeStackSpace = (buffer - sizeof(buffer)) - (stackStart - stackSize); | |
| 44 | //fprintf(stderr, "&buffer=%p, stackStart=%p, freeStackSpace=0x%lx\n", buffer, stackStart, freeStackSpace); | |
| 45 | if ( freeStackSpace < sizeof(buffer) ) | |
| bac542e6 A |
46 | return; |
| 47 | else | |
| 48 | foo(stackSize, stackStart); | |
| 49 | } | |
| 50 | ||
| 51 | #if __ppc__ | |
| 52 | static bool isRosetta() | |
| 53 | { | |
| 54 | int mib[] = { CTL_KERN, KERN_CLASSIC, getpid() }; | |
| 55 | int is_classic = 0; | |
| 56 | size_t len = sizeof(int); | |
| 57 | int ret = sysctl(mib, 3, &is_classic, &len, NULL, 0); | |
| 58 | if ((ret != -1) && is_classic) { | |
| 59 | // we're running under Rosetta | |
| 60 | return true; | |
| 61 | } | |
| 62 | return false; | |
| 63 | } | |
| 64 | #endif | |
| 65 | ||
| 66 | int | |
| 67 | main() | |
| 68 | { | |
| 69 | char start; | |
| 70 | #if __ppc__ | |
| 71 | // programs running under rosetta cannot use large amounts of stack | |
| 72 | if ( isRosetta() ) | |
| 73 | foo(0x02000000, &start); | |
| 74 | else | |
| 75 | #endif | |
| 39a8cd10 | 76 | foo(STACK_SIZE, &start); |
| bac542e6 A |
77 | return EXIT_SUCCESS; |
| 78 | } | |
| 79 | ||
| 80 |