projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 3d9156a7 A |
1 | /* |
| 2 | * Copyright (c) 2004 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 | ||
| 24 | #include <machine/cpu_capabilities.h> | |
| 25 | ||
| 26 | #define DECLARE(x) \ | |
| 27 | .align 2, 0x90 ; \ | |
| 28 | .globl x ; \ | |
| 29 | .globl x ## Barrier ; \ | |
| 30 | x: ; \ | |
| 31 | x ## Barrier: | |
| 32 | ||
| 33 | .text | |
| 34 | ||
| 35 | DECLARE(_OSAtomicAnd32) | |
| 36 | movl 8(%esp), %ecx | |
| 37 | movl (%ecx), %eax | |
| 38 | 1: | |
| 39 | movl 4(%esp), %edx | |
| 40 | andl %eax, %edx | |
| 41 | call *_COMM_PAGE_COMPARE_AND_SWAP32 | |
| 42 | jnz 1b | |
| 43 | movl %edx, %eax | |
| 44 | ret | |
| 45 | ||
| 46 | DECLARE(_OSAtomicOr32) | |
| 47 | movl 8(%esp), %ecx | |
| 48 | movl (%ecx), %eax | |
| 49 | 1: | |
| 50 | movl 4(%esp), %edx | |
| 51 | orl %eax, %edx | |
| 52 | call *_COMM_PAGE_COMPARE_AND_SWAP32 | |
| 53 | jnz 1b | |
| 54 | movl %edx, %eax | |
| 55 | ret | |
| 56 | ||
| 57 | DECLARE(_OSAtomicXor32) | |
| 58 | movl 8(%esp), %ecx | |
| 59 | movl (%ecx), %eax | |
| 60 | 1: | |
| 61 | movl 4(%esp), %edx | |
| 62 | xorl %eax, %edx | |
| 63 | call *_COMM_PAGE_COMPARE_AND_SWAP32 | |
| 64 | jnz 1b | |
| 65 | movl %edx, %eax | |
| 66 | ret | |
| 67 | ||
| 68 | DECLARE(_OSAtomicCompareAndSwap32) | |
| 69 | movl 4(%esp), %eax | |
| 70 | movl 8(%esp), %edx | |
| 71 | movl 12(%esp), %ecx | |
| 72 | call *_COMM_PAGE_COMPARE_AND_SWAP32 | |
| 73 | sete %al | |
| 74 | ret | |
| 75 | ||
| 76 | .align 2, 0x90 | |
| 77 | DECLARE(_OSAtomicCompareAndSwap64) | |
| 78 | pushl %ebx | |
| 79 | pushl %esi | |
| 80 | movl 12(%esp), %eax | |
| 81 | movl 16(%esp), %edx | |
| 82 | movl 20(%esp), %ebx | |
| 83 | movl 24(%esp), %ecx | |
| 84 | movl 28(%esp), %esi | |
| 85 | call *_COMM_PAGE_COMPARE_AND_SWAP64 | |
| 86 | sete %al | |
| 87 | popl %esi | |
| 88 | popl %ebx | |
| 89 | ret | |
| 90 | ||
| 91 | DECLARE(_OSAtomicAdd32) | |
| 92 | movl 4(%esp), %eax | |
| 93 | movl 8(%esp), %edx | |
| 94 | movl %eax, %ecx | |
| 95 | call *_COMM_PAGE_ATOMIC_ADD32 | |
| 96 | addl %ecx, %eax | |
| 97 | ret | |
| 98 | ||
| 99 | DECLARE(_OSAtomicAdd64) | |
| 100 | pushl %ebx | |
| 101 | pushl %esi | |
| 102 | movl 20(%esp), %esi | |
| 103 | movl 0(%esi), %eax | |
| 104 | movl 4(%esi), %edx | |
| 105 | 1: movl 12(%esp), %ebx | |
| 106 | movl 16(%esp), %ecx | |
| 107 | addl %eax, %ebx | |
| 108 | adcl %edx, %ecx | |
| 109 | call *_COMM_PAGE_COMPARE_AND_SWAP64 | |
| 110 | jnz 1b | |
| 111 | movl %ebx, %eax | |
| 112 | movl %ecx, %ebx | |
| 113 | popl %esi | |
| 114 | popl %ebx | |
| 115 | ret | |
| 116 | ||
| 117 | DECLARE(_OSAtomicTestAndSet) | |
| 118 | movl 4(%esp), %eax | |
| 119 | movl 8(%esp), %edx | |
| eb1cde05 A |
120 | movl %eax, %ecx |
| 121 | andl $-8, %ecx | |
| 122 | notl %eax | |
| 123 | andl $7, %eax | |
| 124 | orl %ecx, %eax | |
| 3d9156a7 A |
125 | call *_COMM_PAGE_BTS |
| 126 | setc %al | |
| 127 | ret | |
| 128 | ||
| 129 | DECLARE(_OSAtomicTestAndClear) | |
| 130 | movl 4(%esp), %eax | |
| 131 | movl 8(%esp), %edx | |
| eb1cde05 A |
132 | movl %eax, %ecx |
| 133 | andl $-8, %ecx | |
| 134 | notl %eax | |
| 135 | andl $7, %eax | |
| 136 | orl %ecx, %eax | |
| 3d9156a7 A |
137 | call *_COMM_PAGE_BTC |
| 138 | setc %al | |
| 139 | ret | |
| 140 | ||
| 141 | .align 2, 0x90 | |
| 142 | .globl _OSSpinLockTry | |
| 143 | _OSSpinLockTry: | |
| 144 | movl $(_COMM_PAGE_SPINLOCK_TRY), %eax | |
| 145 | jmpl %eax | |
| 146 | ||
| 147 | .align 2, 0x90 | |
| 148 | .globl _OSSpinLockLock | |
| 149 | _OSSpinLockLock: | |
| 150 | movl $(_COMM_PAGE_SPINLOCK_LOCK), %eax | |
| 151 | jmpl %eax | |
| 152 | ||
| 153 | .align 2, 0x90 | |
| 154 | .globl _OSSpinLockUnlock | |
| 155 | _OSSpinLockUnlock: | |
| 156 | movl 4(%esp), %eax | |
| 157 | movl $0, (%eax) | |
| 158 | ret | |
| 159 | ||
| 160 | .align 2, 0x90 | |
| 161 | .globl _OSMemoryBarrier | |
| 162 | _OSMemoryBarrier: | |
| 163 | ret |