projects / apple / objc4.git / blame
| Commit | Line | Data |
|---|---|---|
| 2bfd4448 A |
1 | /* |
| 2 | * Copyright (c) 2004 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * Copyright (c) 2004 Apple Computer, Inc. All Rights Reserved. | |
| 7 | * | |
| 8 | * This file contains Original Code and/or Modifications of Original Code | |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 22 | * | |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | ||
| 26 | /* | |
| 27 | * Interposing support. | |
| 28 | * When OBJC_ALLOW_INTERPOSING is set, calls to objc_msgSend_rtp | |
| 29 | * jump to the ordinary messenger via this stub. If objc_msgSend | |
| 30 | * itself is interposed, dyld will find and change this stub. | |
| 31 | * This stub must be compiled into a separate linker module. | |
| 32 | */ | |
| 33 | ||
| 34 | .data | |
| 35 | .picsymbol_stub | |
| 36 | L_objc_msgSend$stub: | |
| 37 | .indirect_symbol _objc_msgSend | |
| 38 | mflr r0 | |
| 39 | bcl 20,31,1f | |
| 40 | 1: | |
| 41 | mflr r11 | |
| 42 | addis r11,r11,ha16(L_objc_msgSend$lazy_ptr-1b) | |
| 43 | mtlr r0 | |
| 44 | lwz r12,lo16(L_objc_msgSend$lazy_ptr-1b)(r11) | |
| 45 | mtctr r12 | |
| 46 | addi r11,r11,lo16(L_objc_msgSend$lazy_ptr-1b) | |
| 47 | bctr | |
| 48 | ||
| 49 | .data | |
| 50 | .lazy_symbol_pointer | |
| 51 | L_objc_msgSend$lazy_ptr: | |
| 52 | .indirect_symbol _objc_msgSend | |
| 53 | .long dyld_stub_binding_helper | |
| 54 | ||
| 55 | .text | |
| 56 | .align 4 | |
| 57 | .globl _objc_msgSend_stub | |
| 58 | ||
| 59 | _objc_msgSend_stub: | |
| 60 | b L_objc_msgSend$stub |