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 1998 Apple Computer, Inc. */ | |
| 29 | ||
| 30 | #include "SYS.h" | |
| 31 | ||
| 32 | #if defined(__ppc__) || defined(__ppc64__) | |
| 33 | ||
| 34 | /* This syscall is special cased: the timeval is returned in r3/r4. | |
| 35 | * Note also that the "seconds" field of the timeval is a long, so | |
| 36 | * it's size is mode dependent. | |
| 37 | */ | |
| 38 | MI_ENTRY_POINT(___gettimeofday) | |
| 39 | mr r12,r3 // save ptr to timeval | |
| 40 | SYSCALL_NONAME(gettimeofday,0) | |
| 41 | stg r3,0(r12) // "stw" in 32-bit mode, "std" in 64-bit mode | |
| 42 | stw r4,GPR_BYTES(r12) | |
| 43 | li r3,0 | |
| 44 | blr | |
| 45 | ||
| 46 | #elif defined(__i386__) | |
| 47 | ||
| 48 | /* | |
| 49 | * This syscall is special cased: the timeval is returned in eax/edx. | |
| 50 | */ | |
| 51 | LABEL(___gettimeofday) | |
| 52 | UNIX_SYSCALL_INT_NONAME(gettimeofday,0) | |
| 53 | mov 4(%esp),%ecx | |
| 54 | mov %eax,(%ecx) | |
| 55 | mov %edx,4(%ecx) | |
| 56 | xor %eax,%eax | |
| 57 | ret | |
| 58 | ||
| 59 | #elif defined(__x86_64__) | |
| 60 | ||
| 61 | /* | |
| 62 | * This syscall is special cased: the timeval is returned in rax:rdx. | |
| 63 | */ | |
| 64 | LABEL(___gettimeofday) | |
| 65 | UNIX_SYSCALL_NONAME(gettimeofday,0) | |
| 66 | movq %rax, (%rdi) | |
| 67 | movl %edx, 8(%rdi) | |
| 68 | xorl %eax, %eax | |
| 69 | ret | |
| 70 | ||
| 71 | #elif defined(__arm__) | |
| 72 | /* | |
| 73 | * This syscall is special cased: the timeval is returned in r0/r1. | |
| 74 | */ | |
| 75 | MI_ENTRY_POINT(___gettimeofday) | |
| 76 | mov r3, r0 // save ptr to timeval | |
| 77 | SYSCALL_NONAME(gettimeofday,2) | |
| 78 | stmia r3, { r0, r1 } | |
| 79 | mov r0, #0 | |
| 80 | bx lr | |
| 81 | ||
| 82 | #else | |
| 83 | #error Unsupported architecture | |
| 84 | #endif |