projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 2d21ac55 A |
1 | /* |
| 2 | * Copyright (c) 1999-2007 Apple Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_OSREFERENCE_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. 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 | |
| 24 | * limitations under the License. | |
| 25 | * | |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
| 27 | */ | |
| 28 | /* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. */ | |
| 29 | ||
| 30 | #include "SYS.h" | |
| 31 | ||
| 6d2010ae | 32 | #if defined(__i386__) |
| 2d21ac55 A |
33 | |
| 34 | .globl _errno | |
| 35 | ||
| 36 | LEAF(___ptrace, 0) | |
| 37 | xorl %eax,%eax | |
| 38 | REG_TO_EXTERN(%eax,_errno) | |
| 316670eb | 39 | UNIX_SYSCALL_NONAME(ptrace, 4, cerror) |
| 2d21ac55 A |
40 | ret |
| 41 | ||
| 42 | #elif defined(__x86_64__) | |
| 43 | ||
| 44 | .globl _errno | |
| 45 | ||
| 46 | LEAF(___ptrace, 0) | |
| 47 | xorq %rax,%rax | |
| 6d2010ae A |
48 | PICIFY(_errno) |
| 49 | movl %eax,(%r11) | |
| 316670eb | 50 | UNIX_SYSCALL_NONAME(ptrace, 4, cerror) |
| 2d21ac55 A |
51 | ret |
| 52 | ||
| 5ba3f43e A |
53 | #elif defined(__arm__) |
| 54 | ||
| 55 | MI_ENTRY_POINT(___ptrace) | |
| 56 | MI_GET_ADDRESS(ip,_errno) | |
| 57 | str r8, [sp, #-4]! | |
| 58 | mov r8, #0 | |
| 59 | str r8, [ip] | |
| 60 | ldr r8, [sp], #4 | |
| 61 | SYSCALL_NONAME(ptrace, 4, cerror) | |
| 62 | bx lr | |
| 63 | ||
| 64 | #elif defined(__arm64__) | |
| 65 | ||
| 66 | MI_ENTRY_POINT(___ptrace) | |
| 67 | MI_GET_ADDRESS(x9,_errno) | |
| 68 | str wzr, [x9] | |
| 69 | SYSCALL_NONAME(ptrace, 4, cerror) | |
| 70 | ret | |
| 71 | ||
| 2d21ac55 A |
72 | #else |
| 73 | #error Unsupported architecture | |
| 74 | #endif |