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1 | /* |
2 | * Copyright (c) 2003-2004, 2008 Apple 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 | * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991 | |
25 | * All Rights Reserved | |
26 | * | |
27 | * Permission to use, copy, modify, and distribute this software and | |
28 | * its documentation for any purpose and without fee is hereby granted, | |
29 | * provided that the above copyright notice appears in all copies and | |
30 | * that both the copyright notice and this permission notice appear in | |
31 | * supporting documentation. | |
32 | * | |
33 | * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE | |
34 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
35 | * FOR A PARTICULAR PURPOSE. | |
36 | * | |
37 | * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR | |
38 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM | |
39 | * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, | |
40 | * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION | |
41 | * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
42 | */ | |
43 | /* | |
44 | * MkLinux | |
45 | */ | |
46 | ||
47 | /* Machine-dependent definitions for pthread internals. */ | |
48 | ||
49 | #ifndef _POSIX_PTHREAD_MACHDEP_H | |
50 | #define _POSIX_PTHREAD_MACHDEP_H | |
51 | ||
52 | #ifdef __LP64__ | |
53 | #define _PTHREAD_TSD_OFFSET 0x60 | |
54 | #else | |
55 | #define _PTHREAD_TSD_OFFSET 0x48 | |
56 | #endif /* __LP64__ */ | |
57 | ||
58 | #ifndef __ASSEMBLER__ | |
59 | ||
60 | #include <System/machine/cpu_capabilities.h> | |
61 | #ifdef __arm__ | |
62 | #include <arm/arch.h> | |
63 | #endif | |
64 | ||
65 | /* | |
66 | ** Define macros for inline pthread_getspecific() usage. | |
67 | ** We reserve a number of slots for Apple internal use. | |
68 | ** This number can grow dynamically, no need to fix it. | |
69 | */ | |
70 | ||
71 | /* This header contains pre defined thread specific keys */ | |
72 | /* 0 is used for pthread_self */ | |
73 | #define _PTHREAD_TSD_SLOT_PTHREAD_SELF 0 | |
74 | /* Keys 1- 9 for use by dyld, directly or indirectly */ | |
75 | #define _PTHREAD_TSD_SLOT_DYLD_1 1 | |
76 | #define _PTHREAD_TSD_SLOT_DYLD_2 2 | |
77 | #define _PTHREAD_TSD_SLOT_DYLD_3 3 | |
78 | #define _PTHREAD_TSD_RESERVED_SLOT_COUNT 4 | |
79 | ||
80 | /* Keys 10 - 29 are for Libc/Libsystem internal ussage */ | |
81 | /* used as __pthread_tsd_first + Num */ | |
82 | #define __PTK_LIBC_LOCALE_KEY 10 | |
83 | #define __PTK_LIBC_TTYNAME_KEY 11 | |
84 | #define __PTK_LIBC_LOCALTIME_KEY 12 | |
85 | #define __PTK_LIBC_GMTIME_KEY 13 | |
86 | #define __PTK_LIBC_GDTOA_BIGINT_KEY 14 | |
87 | #define __PTK_LIBC_PARSEFLOAT_KEY 15 | |
88 | ||
89 | /* Keys 20-25 for libdispactch usage */ | |
90 | #define __PTK_LIBDISPATCH_KEY0 20 | |
91 | #define __PTK_LIBDISPATCH_KEY1 21 | |
92 | #define __PTK_LIBDISPATCH_KEY2 22 | |
93 | #define __PTK_LIBDISPATCH_KEY3 23 | |
94 | #define __PTK_LIBDISPATCH_KEY4 24 | |
95 | #define __PTK_LIBDISPATCH_KEY5 25 | |
96 | ||
97 | /* Keys 30-255 for Non Libsystem usage */ | |
98 | ||
99 | /* Keys 30-39 for Graphic frameworks usage */ | |
100 | #define _PTHREAD_TSD_SLOT_OPENGL 30 /* backwards compat sake */ | |
101 | #define __PTK_FRAMEWORK_OPENGL_KEY 30 | |
102 | #define __PTK_FRAMEWORK_GRAPHICS_KEY1 31 | |
103 | #define __PTK_FRAMEWORK_GRAPHICS_KEY2 32 | |
104 | #define __PTK_FRAMEWORK_GRAPHICS_KEY3 33 | |
105 | #define __PTK_FRAMEWORK_GRAPHICS_KEY4 34 | |
106 | #define __PTK_FRAMEWORK_GRAPHICS_KEY5 35 | |
107 | #define __PTK_FRAMEWORK_GRAPHICS_KEY6 36 | |
108 | #define __PTK_FRAMEWORK_GRAPHICS_KEY7 37 | |
109 | #define __PTK_FRAMEWORK_GRAPHICS_KEY8 38 | |
110 | #define __PTK_FRAMEWORK_GRAPHICS_KEY9 39 | |
111 | ||
112 | /* Keys 40-49 for Objective-C runtime usage */ | |
113 | #define __PTK_FRAMEWORK_OBJC_KEY0 40 | |
114 | #define __PTK_FRAMEWORK_OBJC_KEY1 41 | |
115 | #define __PTK_FRAMEWORK_OBJC_KEY2 42 | |
116 | #define __PTK_FRAMEWORK_OBJC_KEY3 43 | |
117 | #define __PTK_FRAMEWORK_OBJC_KEY4 44 | |
118 | #define __PTK_FRAMEWORK_OBJC_KEY5 45 | |
119 | #define __PTK_FRAMEWORK_OBJC_KEY6 46 | |
120 | #define __PTK_FRAMEWORK_OBJC_KEY7 47 | |
121 | #define __PTK_FRAMEWORK_OBJC_KEY8 48 | |
122 | #define __PTK_FRAMEWORK_OBJC_KEY9 49 | |
123 | ||
124 | /* Keys 50-59 for Core Foundation usage */ | |
125 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY0 50 | |
126 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY1 51 | |
127 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY2 52 | |
128 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY3 53 | |
129 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY4 54 | |
130 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY5 55 | |
131 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY6 56 | |
132 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY7 57 | |
133 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY8 58 | |
134 | #define __PTK_FRAMEWORK_COREFOUNDATION_KEY9 59 | |
135 | ||
136 | /* Keys 60-69 for Foundation usage */ | |
137 | #define __PTK_FRAMEWORK_FOUNDATION_KEY0 60 | |
138 | #define __PTK_FRAMEWORK_FOUNDATION_KEY1 61 | |
139 | #define __PTK_FRAMEWORK_FOUNDATION_KEY2 62 | |
140 | #define __PTK_FRAMEWORK_FOUNDATION_KEY3 63 | |
141 | #define __PTK_FRAMEWORK_FOUNDATION_KEY4 64 | |
142 | #define __PTK_FRAMEWORK_FOUNDATION_KEY5 65 | |
143 | #define __PTK_FRAMEWORK_FOUNDATION_KEY6 66 | |
144 | #define __PTK_FRAMEWORK_FOUNDATION_KEY7 67 | |
145 | #define __PTK_FRAMEWORK_FOUNDATION_KEY8 68 | |
146 | #define __PTK_FRAMEWORK_FOUNDATION_KEY9 69 | |
147 | ||
148 | /* Keys 70-79 for Core Animation/QuartzCore usage */ | |
149 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY0 70 | |
150 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY1 71 | |
151 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY2 72 | |
152 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY3 73 | |
153 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY4 74 | |
154 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY5 75 | |
155 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY6 76 | |
156 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY7 77 | |
157 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY8 78 | |
158 | #define __PTK_FRAMEWORK_QUARTZCORE_KEY9 79 | |
159 | ||
160 | ||
161 | /* Keys 80-89 for Garbage Collection */ | |
162 | #define __PTK_FRAMEWORK_GC_KEY0 80 | |
163 | #define __PTK_FRAMEWORK_GC_KEY1 81 | |
164 | #define __PTK_FRAMEWORK_GC_KEY2 82 | |
165 | #define __PTK_FRAMEWORK_GC_KEY3 83 | |
166 | #define __PTK_FRAMEWORK_GC_KEY4 84 | |
167 | #define __PTK_FRAMEWORK_GC_KEY5 85 | |
168 | #define __PTK_FRAMEWORK_GC_KEY6 86 | |
169 | #define __PTK_FRAMEWORK_GC_KEY7 87 | |
170 | #define __PTK_FRAMEWORK_GC_KEY8 88 | |
171 | #define __PTK_FRAMEWORK_GC_KEY9 89 | |
172 | ||
173 | ||
174 | /* | |
175 | ** Define macros for inline pthread_getspecific() usage. | |
176 | ** We reserve a number of slots for Apple internal use. | |
177 | ** This number can grow dynamically, no need to fix it. | |
178 | */ | |
179 | ||
180 | ||
181 | #if defined(__cplusplus) | |
182 | extern "C" { | |
183 | #endif | |
184 | ||
185 | extern void *pthread_getspecific(unsigned long); | |
186 | /* setup destructor function for static key as it is not created with pthread_key_create() */ | |
187 | int pthread_key_init_np(int, void (*)(void *)); | |
188 | ||
189 | #if defined(__cplusplus) | |
190 | } | |
191 | #endif | |
192 | ||
193 | typedef int pthread_lock_t; | |
194 | ||
195 | inline static int | |
196 | _pthread_has_direct_tsd(void) | |
197 | { | |
198 | #if defined(__ppc__) | |
199 | int *caps = (int *)_COMM_PAGE_CPU_CAPABILITIES; | |
200 | if (*caps & kFastThreadLocalStorage) { | |
201 | return 1; | |
202 | } else { | |
203 | return 0; | |
204 | } | |
205 | #elif defined(__arm__) && defined(__thumb__) && defined(_ARM_ARCH_6) && !defined(_ARM_ARCH_7) | |
206 | return 0; | |
207 | #else | |
208 | return 1; | |
209 | #endif | |
210 | } | |
211 | ||
212 | /* To be used with static constant keys only */ | |
213 | inline static void * | |
214 | _pthread_getspecific_direct(unsigned long slot) | |
215 | { | |
216 | void *ret; | |
217 | #if defined(__i386__) || defined(__x86_64__) | |
218 | #if defined(__OPTIMIZE__) | |
219 | asm volatile("mov %%gs:%P1, %0" : "=r" (ret) : "i" (slot * sizeof(void *) + _PTHREAD_TSD_OFFSET)); | |
220 | #else | |
221 | asm("mov %%gs:%P2(,%1,%P3), %0" : "=r" (ret) : "r" (slot), "i" (_PTHREAD_TSD_OFFSET), "i" (sizeof (void *))); | |
222 | #endif | |
223 | #elif defined(__ppc__) | |
224 | void **__pthread_tsd; | |
225 | asm volatile("mfspr %0, 259" : "=r" (__pthread_tsd)); | |
226 | ret = __pthread_tsd[slot + (_PTHREAD_TSD_OFFSET / sizeof(void *))]; | |
227 | #elif defined(__ppc64__) | |
228 | register void **__pthread_tsd asm ("r13"); | |
229 | ret = __pthread_tsd[slot + (_PTHREAD_TSD_OFFSET / sizeof(void *))]; | |
230 | #elif defined(__arm__) && defined(_ARM_ARCH_6) | |
231 | void **__pthread_tsd; | |
232 | __asm__ ("mrc p15, 0, %0, c13, c0, 3" : "=r"(__pthread_tsd)); | |
233 | ret = __pthread_tsd[slot + (_PTHREAD_TSD_OFFSET / sizeof(void *))]; | |
234 | #elif defined(__arm__) && !defined(_ARM_ARCH_6) | |
235 | register void **__pthread_tsd asm ("r9"); | |
236 | ret = __pthread_tsd[slot + (_PTHREAD_TSD_OFFSET / sizeof(void *))]; | |
237 | #else | |
238 | #error no pthread_getspecific_direct implementation for this arch | |
239 | #endif | |
240 | return ret; | |
241 | } | |
242 | ||
243 | /* To be used with static constant keys only */ | |
244 | #define _pthread_setspecific_direct(key, val) pthread_setspecific(key, val) | |
245 | ||
246 | #define LOCK_INIT(l) ((l) = 0) | |
247 | #define LOCK_INITIALIZER 0 | |
248 | ||
249 | #endif /* ! __ASSEMBLER__ */ | |
250 | #endif /* _POSIX_PTHREAD_MACHDEP_H */ |