|
0
|
1 /* MIPS SDE threads compatibility routines for libgcc2 and libobjc. */
|
|
|
2 /* Compile this one with gcc. */
|
|
|
3 /* Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
|
|
|
4 Contributed by Nigel Stephens <nigel@mips.com>
|
|
|
5
|
|
|
6 This file is part of GCC.
|
|
|
7
|
|
|
8 GCC is free software; you can redistribute it and/or modify it under
|
|
|
9 the terms of the GNU General Public License as published by the Free
|
|
|
10 Software Foundation; either version 3, or (at your option) any later
|
|
|
11 version.
|
|
|
12
|
|
|
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
16 for more details.
|
|
|
17
|
|
|
18 Under Section 7 of GPL version 3, you are granted additional
|
|
|
19 permissions described in the GCC Runtime Library Exception, version
|
|
|
20 3.1, as published by the Free Software Foundation.
|
|
|
21
|
|
|
22 You should have received a copy of the GNU General Public License and
|
|
|
23 a copy of the GCC Runtime Library Exception along with this program;
|
|
|
24 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
25 <http://www.gnu.org/licenses/>. */
|
|
|
26
|
|
|
27 #ifndef GCC_GTHR_MIPSSDE_H
|
|
|
28 #define GCC_GTHR_MIPSSDE_H
|
|
|
29
|
|
|
30 /* MIPS SDE threading API specific definitions.
|
|
|
31 Easy, since the interface is pretty much one-to-one. */
|
|
|
32
|
|
|
33 #define __GTHREADS 1
|
|
|
34
|
|
|
35 #include <sdethread.h>
|
|
|
36 #include <unistd.h>
|
|
|
37
|
|
|
38 #ifdef __cplusplus
|
|
|
39 extern "C" {
|
|
|
40 #endif
|
|
|
41
|
|
|
42 typedef __sdethread_key_t __gthread_key_t;
|
|
|
43 typedef __sdethread_once_t __gthread_once_t;
|
|
|
44 typedef __sdethread_mutex_t __gthread_mutex_t;
|
|
|
45
|
|
|
46 typedef struct {
|
|
|
47 long depth;
|
|
|
48 __sdethread_t owner;
|
|
|
49 __sdethread_mutex_t actual;
|
|
|
50 } __gthread_recursive_mutex_t;
|
|
|
51
|
|
|
52 #define __GTHREAD_MUTEX_INIT __SDETHREAD_MUTEX_INITIALIZER("gthr")
|
|
|
53 #define __GTHREAD_ONCE_INIT __SDETHREAD_ONCE_INIT
|
|
|
54 static inline int
|
|
|
55 __gthread_recursive_mutex_init_function(__gthread_recursive_mutex_t *__mutex);
|
|
|
56 #define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
|
|
|
57
|
|
|
58 #if SUPPORTS_WEAK && GTHREAD_USE_WEAK
|
|
|
59 # define __gthrw(name) \
|
|
|
60 static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)));
|
|
|
61 # define __gthrw_(name) __gthrw_ ## name
|
|
|
62 #else
|
|
|
63 # define __gthrw(name)
|
|
|
64 # define __gthrw_(name) name
|
|
|
65 #endif
|
|
|
66
|
|
|
67 __gthrw(__sdethread_once)
|
|
|
68 __gthrw(__sdethread_key_create)
|
|
|
69 __gthrw(__sdethread_key_delete)
|
|
|
70 __gthrw(__sdethread_getspecific)
|
|
|
71 __gthrw(__sdethread_setspecific)
|
|
|
72
|
|
|
73 __gthrw(__sdethread_self)
|
|
|
74
|
|
|
75 __gthrw(__sdethread_mutex_lock)
|
|
|
76 __gthrw(__sdethread_mutex_trylock)
|
|
|
77 __gthrw(__sdethread_mutex_unlock)
|
|
|
78
|
|
|
79 __gthrw(__sdethread_mutex_init)
|
|
|
80
|
|
|
81 __gthrw(__sdethread_threading)
|
|
|
82
|
|
|
83 #if SUPPORTS_WEAK && GTHREAD_USE_WEAK
|
|
|
84
|
|
|
85 static inline int
|
|
|
86 __gthread_active_p (void)
|
|
|
87 {
|
|
|
88 return !!(void *)&__sdethread_threading;
|
|
|
89 }
|
|
|
90
|
|
|
91 #else /* not SUPPORTS_WEAK */
|
|
|
92
|
|
|
93 static inline int
|
|
|
94 __gthread_active_p (void)
|
|
|
95 {
|
|
|
96 return 1;
|
|
|
97 }
|
|
|
98
|
|
|
99 #endif /* SUPPORTS_WEAK */
|
|
|
100
|
|
|
101 static inline int
|
|
|
102 __gthread_once (__gthread_once_t *__once, void (*__func) (void))
|
|
|
103 {
|
|
|
104 if (__gthread_active_p ())
|
|
|
105 return __gthrw_(__sdethread_once) (__once, __func);
|
|
|
106 else
|
|
|
107 return -1;
|
|
|
108 }
|
|
|
109
|
|
|
110 static inline int
|
|
|
111 __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
|
|
|
112 {
|
|
|
113 return __gthrw_(__sdethread_key_create) (__key, __dtor);
|
|
|
114 }
|
|
|
115
|
|
|
116 static inline int
|
|
|
117 __gthread_key_delete (__gthread_key_t __key)
|
|
|
118 {
|
|
|
119 return __gthrw_(__sdethread_key_delete) (__key);
|
|
|
120 }
|
|
|
121
|
|
|
122 static inline void *
|
|
|
123 __gthread_getspecific (__gthread_key_t __key)
|
|
|
124 {
|
|
|
125 return __gthrw_(__sdethread_getspecific) (__key);
|
|
|
126 }
|
|
|
127
|
|
|
128 static inline int
|
|
|
129 __gthread_setspecific (__gthread_key_t __key, const void *__ptr)
|
|
|
130 {
|
|
|
131 return __gthrw_(__sdethread_setspecific) (__key, __ptr);
|
|
|
132 }
|
|
|
133
|
|
|
134 static inline int
|
|
|
135 __gthread_mutex_destroy (__gthread_mutex_t * UNUSED(__mutex))
|
|
|
136 {
|
|
|
137 return 0;
|
|
|
138 }
|
|
|
139
|
|
|
140 static inline int
|
|
|
141 __gthread_mutex_lock (__gthread_mutex_t *__mutex)
|
|
|
142 {
|
|
|
143 if (__gthread_active_p ())
|
|
|
144 return __gthrw_(__sdethread_mutex_lock) (__mutex);
|
|
|
145 else
|
|
|
146 return 0;
|
|
|
147 }
|
|
|
148
|
|
|
149 static inline int
|
|
|
150 __gthread_mutex_trylock (__gthread_mutex_t *__mutex)
|
|
|
151 {
|
|
|
152 if (__gthread_active_p ())
|
|
|
153 return __gthrw_(__sdethread_mutex_trylock) (__mutex);
|
|
|
154 else
|
|
|
155 return 0;
|
|
|
156 }
|
|
|
157
|
|
|
158 static inline int
|
|
|
159 __gthread_mutex_unlock (__gthread_mutex_t *__mutex)
|
|
|
160 {
|
|
|
161 if (__gthread_active_p ())
|
|
|
162 return __gthrw_(__sdethread_mutex_unlock) (__mutex);
|
|
|
163 else
|
|
|
164 return 0;
|
|
|
165 }
|
|
|
166
|
|
|
167 static inline int
|
|
|
168 __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
|
|
|
169 {
|
|
|
170 __mutex->depth = 0;
|
|
|
171 __mutex->owner = __gthrw_(__sdethread_self) ();
|
|
|
172 return __gthrw_(__sdethread_mutex_init) (&__mutex->actual, NULL);
|
|
|
173 }
|
|
|
174
|
|
|
175 static inline int
|
|
|
176 __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
|
|
|
177 {
|
|
|
178 if (__gthread_active_p ())
|
|
|
179 {
|
|
|
180 __sdethread_t __me = __gthrw_(__sdethread_self) ();
|
|
|
181
|
|
|
182 if (__mutex->owner != __me)
|
|
|
183 {
|
|
|
184 __gthrw_(__sdethread_mutex_lock) (&__mutex->actual);
|
|
|
185 __mutex->owner = __me;
|
|
|
186 }
|
|
|
187
|
|
|
188 __mutex->depth++;
|
|
|
189 }
|
|
|
190 return 0;
|
|
|
191 }
|
|
|
192
|
|
|
193 static inline int
|
|
|
194 __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
|
|
|
195 {
|
|
|
196 if (__gthread_active_p ())
|
|
|
197 {
|
|
|
198 __sdethread_t __me = __gthrw_(__sdethread_self) ();
|
|
|
199
|
|
|
200 if (__mutex->owner != __me)
|
|
|
201 {
|
|
|
202 if (__gthrw_(__sdethread_mutex_trylock) (&__mutex->actual))
|
|
|
203 return 1;
|
|
|
204 __mutex->owner = __me;
|
|
|
205 }
|
|
|
206
|
|
|
207 __mutex->depth++;
|
|
|
208 }
|
|
|
209 return 0;
|
|
|
210 }
|
|
|
211
|
|
|
212 static inline int
|
|
|
213 __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
|
|
|
214 {
|
|
|
215 if (__gthread_active_p ())
|
|
|
216 {
|
|
|
217 if (--__mutex->depth == 0)
|
|
|
218 {
|
|
|
219 __mutex->owner = (__sdethread_t) 0;
|
|
|
220 __gthrw_(__sdethread_mutex_unlock) (&__mutex->actual);
|
|
|
221 }
|
|
|
222 }
|
|
|
223 return 0;
|
|
|
224 }
|
|
|
225
|
|
|
226 #ifdef __cplusplus
|
|
|
227 }
|
|
|
228 #endif
|
|
|
229
|
|
|
230 #endif /* ! GCC_GTHR_MIPSSDE_H */
|
