1 #ifndef _PTHREAD_IMPL_H
2 #define _PTHREAD_IMPL_H
14 #define pthread __pthread
17 /* Part 1 -- these fields may be external or
18 * internal (accessed via asm) ABI. Do not change. */
21 void *unused1, *unused2;
23 uintptr_t canary, canary2;
25 /* Part 2 -- implementation details, non-ABI. */
28 volatile int detach_state;
30 volatile unsigned char canceldisable, cancelasync;
31 unsigned char tsd_used:1;
32 unsigned char unblock_cancel:1;
33 unsigned char dlerror_flag:1;
34 unsigned char *map_base;
40 void *(*start)(void *);
42 struct __ptcb *cancelbuf;
45 volatile void *volatile head;
47 volatile void *volatile pending;
49 volatile int timer_id;
51 volatile int killlock[1];
55 /* Part 3 -- the positions of these fields relative to
56 * the end of the structure is external and internal ABI. */
57 uintptr_t canary_at_end;
61 struct start_sched_args {
63 void *(*start_fn)(void *);
82 #define __SU (sizeof(size_t)/sizeof(int))
84 #define _a_stacksize __u.__s[0]
85 #define _a_guardsize __u.__s[1]
86 #define _a_stackaddr __u.__s[2]
87 #define _a_detach __u.__i[3*__SU+0]
88 #define _a_sched __u.__i[3*__SU+1]
89 #define _a_policy __u.__i[3*__SU+2]
90 #define _a_prio __u.__i[3*__SU+3]
91 #define _m_type __u.__i[0]
92 #define _m_lock __u.__vi[1]
93 #define _m_waiters __u.__vi[2]
94 #define _m_prev __u.__p[3]
95 #define _m_next __u.__p[4]
96 #define _m_count __u.__i[5]
97 #define _c_shared __u.__p[0]
98 #define _c_seq __u.__vi[2]
99 #define _c_waiters __u.__vi[3]
100 #define _c_clock __u.__i[4]
101 #define _c_lock __u.__vi[8]
102 #define _c_head __u.__p[1]
103 #define _c_tail __u.__p[5]
104 #define _rw_lock __u.__vi[0]
105 #define _rw_waiters __u.__vi[1]
106 #define _rw_shared __u.__i[2]
107 #define _b_lock __u.__vi[0]
108 #define _b_waiters __u.__vi[1]
109 #define _b_limit __u.__i[2]
110 #define _b_count __u.__vi[3]
111 #define _b_waiters2 __u.__vi[4]
112 #define _b_inst __u.__p[3]
114 #include "pthread_arch.h"
117 #define CANARY canary
124 #ifndef tls_mod_off_t
125 #define tls_mod_off_t size_t
130 #define SIGSYNCCALL 34
132 #define SIGALL_SET ((sigset_t *)(const unsigned long long [2]){ -1,-1 })
134 ((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
135 [sizeof(long)==4] = 3UL<<(32*(sizeof(long)>4)) })
136 #define SIGTIMER_SET \
137 ((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
140 void *__tls_get_addr(tls_mod_off_t *);
141 hidden void *__tls_get_new(tls_mod_off_t *);
142 hidden int __init_tp(void *);
143 hidden void *__copy_tls(unsigned char *);
144 hidden void __reset_tls();
146 hidden void __dl_thread_cleanup(void);
147 hidden void __testcancel();
148 hidden void __do_cleanup_push(struct __ptcb *);
149 hidden void __do_cleanup_pop(struct __ptcb *);
150 hidden void __pthread_tsd_run_dtors();
152 hidden void __pthread_key_delete_synccall(void (*)(void *), void *);
153 hidden int __pthread_key_delete_impl(pthread_key_t);
155 extern hidden volatile int __block_new_threads;
156 extern hidden volatile size_t __pthread_tsd_size;
157 extern hidden void *__pthread_tsd_main[];
158 extern hidden volatile int __aio_fut;
160 hidden int __clone(int (*)(void *), void *, int, void *, ...);
161 hidden int __set_thread_area(void *);
162 hidden int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
163 hidden void __unmapself(void *, size_t);
165 hidden int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
166 hidden int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int);
167 hidden void __wait(volatile int *, volatile int *, int, int);
168 static inline void __wake(volatile void *addr, int cnt, int priv)
170 if (priv) priv = FUTEX_PRIVATE;
171 if (cnt<0) cnt = INT_MAX;
172 __syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
173 __syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
175 static inline void __futexwait(volatile void *addr, int val, int priv)
177 if (priv) priv = FUTEX_PRIVATE;
178 __syscall(SYS_futex, addr, FUTEX_WAIT|priv, val, 0) != -ENOSYS ||
179 __syscall(SYS_futex, addr, FUTEX_WAIT, val, 0);
182 hidden void __acquire_ptc(void);
183 hidden void __release_ptc(void);
184 hidden void __inhibit_ptc(void);
186 extern hidden unsigned __default_stacksize;
187 extern hidden unsigned __default_guardsize;
189 #define DEFAULT_STACK_SIZE 131072
190 #define DEFAULT_GUARD_SIZE 8192
192 #define DEFAULT_STACK_MAX (8<<20)
193 #define DEFAULT_GUARD_MAX (1<<20)
195 #define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)