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512baaea D |
1 | /* Threads compatibility routines for libgcc2 and libobjc. |
2 | Compile this one with gcc. | |
09e361bb | 3 | Copyright (C) 2004, 2005, 2008, 2009 Free Software Foundation, Inc. |
512baaea D |
4 | |
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it under | |
8 | the terms of the GNU General Public License as published by the Free | |
748086b7 | 9 | Software Foundation; either version 3, or (at your option) any later |
512baaea D |
10 | version. |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
16 | ||
748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
512baaea | 20 | |
748086b7 JJ |
21 | You should have received a copy of the GNU General Public License and |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
512baaea | 25 | |
b8698a0f | 26 | /* TPF needs its own version of gthr-*.h because TPF always links to |
512baaea D |
27 | the thread library. However, for performance reasons we still do not |
28 | want to issue thread api calls unless a check is made to see that we | |
29 | are running as a thread. */ | |
30 | ||
31 | #ifndef GCC_GTHR_TPF_H | |
32 | #define GCC_GTHR_TPF_H | |
33 | ||
34 | /* POSIX threads specific definitions. | |
35 | Easy, since the interface is just one-to-one mapping. */ | |
36 | ||
37 | #define __GTHREADS 1 | |
38 | ||
39 | /* Some implementations of <pthread.h> require this to be defined. */ | |
40 | #ifndef _REENTRANT | |
41 | #define _REENTRANT 1 | |
42 | #endif | |
43 | ||
44 | #include <pthread.h> | |
45 | #include <unistd.h> | |
46 | ||
47 | typedef pthread_key_t __gthread_key_t; | |
48 | typedef pthread_once_t __gthread_once_t; | |
49 | typedef pthread_mutex_t __gthread_mutex_t; | |
ee0f32f4 D |
50 | typedef pthread_mutex_t __gthread_recursive_mutex_t; |
51 | ||
52 | #if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER) | |
53 | #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER | |
54 | #elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) | |
55 | #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP | |
56 | #endif | |
512baaea D |
57 | |
58 | #define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER | |
59 | #define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT | |
6db28892 | 60 | #define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function |
512baaea D |
61 | |
62 | #define NOTATHREAD 00 | |
63 | #define ECBBASEPTR (unsigned long int) *(unsigned int *)0x00000514u | |
64 | #define ECBPG2PTR ECBBASEPTR + 0x1000 | |
70d02430 | 65 | #define CE2THRCPTR *((unsigned char *)(ECBPG2PTR + 16)) |
512baaea D |
66 | #define __tpf_pthread_active() (CE2THRCPTR != NOTATHREAD) |
67 | ||
68 | #if SUPPORTS_WEAK && GTHREAD_USE_WEAK | |
7ef67393 | 69 | # define __gthrw(name) \ |
72b16773 AO |
70 | static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name))); |
71 | # define __gthrw_(name) __gthrw_ ## name | |
7ef67393 | 72 | #else |
72b16773 AO |
73 | # define __gthrw(name) |
74 | # define __gthrw_(name) name | |
7ef67393 | 75 | #endif |
512baaea | 76 | |
72b16773 AO |
77 | __gthrw(pthread_once) |
78 | __gthrw(pthread_key_create) | |
79 | __gthrw(pthread_key_delete) | |
80 | __gthrw(pthread_getspecific) | |
81 | __gthrw(pthread_setspecific) | |
82 | __gthrw(pthread_create) | |
512baaea | 83 | |
72b16773 AO |
84 | __gthrw(pthread_mutex_lock) |
85 | __gthrw(pthread_mutex_trylock) | |
86 | __gthrw(pthread_mutex_unlock) | |
6db28892 JT |
87 | __gthrw(pthread_mutexattr_init) |
88 | __gthrw(pthread_mutexattr_settype) | |
89 | __gthrw(pthread_mutexattr_destroy) | |
90 | __gthrw(pthread_mutex_init) | |
4dabf736 | 91 | __gthrw(pthread_mutex_destroy) |
512baaea D |
92 | |
93 | static inline int | |
94 | __gthread_active_p (void) | |
95 | { | |
96 | return 1; | |
97 | } | |
98 | ||
99 | static inline int | |
09e361bb | 100 | __gthread_once (__gthread_once_t *__once, void (*__func) (void)) |
512baaea D |
101 | { |
102 | if (__tpf_pthread_active ()) | |
09e361bb | 103 | return __gthrw_(pthread_once) (__once, __func); |
512baaea D |
104 | else |
105 | return -1; | |
106 | } | |
107 | ||
108 | static inline int | |
09e361bb | 109 | __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) |
512baaea D |
110 | { |
111 | if (__tpf_pthread_active ()) | |
09e361bb | 112 | return __gthrw_(pthread_key_create) (__key, __dtor); |
512baaea D |
113 | else |
114 | return -1; | |
115 | } | |
116 | ||
117 | static inline int | |
09e361bb | 118 | __gthread_key_delete (__gthread_key_t __key) |
512baaea D |
119 | { |
120 | if (__tpf_pthread_active ()) | |
09e361bb | 121 | return __gthrw_(pthread_key_delete) (__key); |
512baaea D |
122 | else |
123 | return -1; | |
124 | } | |
125 | ||
126 | static inline void * | |
09e361bb | 127 | __gthread_getspecific (__gthread_key_t __key) |
512baaea D |
128 | { |
129 | if (__tpf_pthread_active ()) | |
09e361bb | 130 | return __gthrw_(pthread_getspecific) (__key); |
512baaea D |
131 | else |
132 | return NULL; | |
133 | } | |
134 | ||
135 | static inline int | |
09e361bb | 136 | __gthread_setspecific (__gthread_key_t __key, const void *__ptr) |
512baaea D |
137 | { |
138 | if (__tpf_pthread_active ()) | |
09e361bb | 139 | return __gthrw_(pthread_setspecific) (__key, __ptr); |
512baaea D |
140 | else |
141 | return -1; | |
142 | } | |
143 | ||
4dabf736 | 144 | static inline int |
09e361bb | 145 | __gthread_mutex_destroy (__gthread_mutex_t *__mutex) |
4dabf736 JB |
146 | { |
147 | if (__tpf_pthread_active ()) | |
09e361bb | 148 | return __gthrw_(pthread_mutex_destroy) (__mutex); |
4dabf736 JB |
149 | else |
150 | return 0; | |
151 | } | |
152 | ||
512baaea | 153 | static inline int |
09e361bb | 154 | __gthread_mutex_lock (__gthread_mutex_t *__mutex) |
512baaea D |
155 | { |
156 | if (__tpf_pthread_active ()) | |
09e361bb | 157 | return __gthrw_(pthread_mutex_lock) (__mutex); |
512baaea D |
158 | else |
159 | return 0; | |
160 | } | |
161 | ||
162 | static inline int | |
09e361bb | 163 | __gthread_mutex_trylock (__gthread_mutex_t *__mutex) |
512baaea D |
164 | { |
165 | if (__tpf_pthread_active ()) | |
09e361bb | 166 | return __gthrw_(pthread_mutex_trylock) (__mutex); |
512baaea D |
167 | else |
168 | return 0; | |
169 | } | |
170 | ||
171 | static inline int | |
09e361bb | 172 | __gthread_mutex_unlock (__gthread_mutex_t *__mutex) |
512baaea D |
173 | { |
174 | if (__tpf_pthread_active ()) | |
09e361bb | 175 | return __gthrw_(pthread_mutex_unlock) (__mutex); |
512baaea D |
176 | else |
177 | return 0; | |
178 | } | |
179 | ||
ee0f32f4 | 180 | static inline int |
09e361bb | 181 | __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) |
ee0f32f4 D |
182 | { |
183 | if (__tpf_pthread_active ()) | |
09e361bb | 184 | return __gthread_mutex_lock (__mutex); |
ee0f32f4 D |
185 | else |
186 | return 0; | |
187 | } | |
188 | ||
189 | static inline int | |
09e361bb | 190 | __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) |
ee0f32f4 D |
191 | { |
192 | if (__tpf_pthread_active ()) | |
09e361bb | 193 | return __gthread_mutex_trylock (__mutex); |
ee0f32f4 D |
194 | else |
195 | return 0; | |
196 | } | |
197 | ||
198 | static inline int | |
09e361bb | 199 | __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) |
ee0f32f4 D |
200 | { |
201 | if (__tpf_pthread_active ()) | |
09e361bb | 202 | return __gthread_mutex_unlock (__mutex); |
ee0f32f4 D |
203 | else |
204 | return 0; | |
205 | } | |
206 | ||
6db28892 | 207 | static inline int |
09e361bb | 208 | __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) |
b8698a0f | 209 | { |
6db28892 JT |
210 | if (__tpf_pthread_active ()) |
211 | { | |
09e361bb JJ |
212 | pthread_mutexattr_t __attr; |
213 | int __r; | |
214 | ||
215 | __r = __gthrw_(pthread_mutexattr_init) (&__attr); | |
216 | if (!__r) | |
217 | __r = __gthrw_(pthread_mutexattr_settype) (&__attr, | |
218 | PTHREAD_MUTEX_RECURSIVE); | |
219 | if (!__r) | |
220 | __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr); | |
221 | if (!__r) | |
222 | __r = __gthrw_(pthread_mutexattr_destroy) (&__attr); | |
223 | return __r; | |
6db28892 JT |
224 | } |
225 | return 0; | |
226 | } | |
227 | ||
228 | ||
512baaea | 229 | #endif /* ! GCC_GTHR_TPF_H */ |