mirror of
https://github.com/fluencelabs/musl
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150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
#ifndef _PTHREAD_IMPL_H
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#define _PTHREAD_IMPL_H
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#include <pthread.h>
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#include <signal.h>
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#include <errno.h>
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#include <limits.h>
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#include "libc.h"
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#include "syscall.h"
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#include "atomic.h"
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#include "futex.h"
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#define pthread __pthread
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struct pthread {
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struct pthread *self;
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void **dtv, *unused1, *unused2;
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uintptr_t sysinfo;
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uintptr_t canary, canary2;
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pid_t tid, pid;
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int tsd_used, errno_val;
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volatile int cancel, canceldisable, cancelasync;
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int detached;
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unsigned char *map_base;
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size_t map_size;
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void *stack;
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size_t stack_size;
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void *start_arg;
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void *(*start)(void *);
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void *result;
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struct __ptcb *cancelbuf;
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void **tsd;
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volatile int dead;
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struct {
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volatile void *volatile head;
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long off;
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volatile void *volatile pending;
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} robust_list;
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int unblock_cancel;
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volatile int timer_id;
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locale_t locale;
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volatile int killlock[2];
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volatile int exitlock[2];
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volatile int startlock[2];
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unsigned long sigmask[_NSIG/8/sizeof(long)];
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char *dlerror_buf;
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int dlerror_flag;
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void *stdio_locks;
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uintptr_t canary_at_end;
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void **dtv_copy;
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};
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struct __timer {
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int timerid;
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pthread_t thread;
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};
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#define __SU (sizeof(size_t)/sizeof(int))
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#define _a_stacksize __u.__s[0]
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#define _a_guardsize __u.__s[1]
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#define _a_stackaddr __u.__s[2]
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#define _a_detach __u.__i[3*__SU+0]
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#define _a_sched __u.__i[3*__SU+1]
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#define _a_policy __u.__i[3*__SU+2]
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#define _a_prio __u.__i[3*__SU+3]
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#define _m_type __u.__i[0]
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#define _m_lock __u.__vi[1]
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#define _m_waiters __u.__vi[2]
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#define _m_prev __u.__p[3]
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#define _m_next __u.__p[4]
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#define _m_count __u.__i[5]
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#define _c_shared __u.__p[0]
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#define _c_seq __u.__vi[2]
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#define _c_waiters __u.__vi[3]
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#define _c_clock __u.__i[4]
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#define _c_lock __u.__vi[8]
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#define _c_head __u.__p[1]
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#define _c_tail __u.__p[5]
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#define _rw_lock __u.__vi[0]
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#define _rw_waiters __u.__vi[1]
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#define _rw_shared __u.__i[2]
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#define _b_lock __u.__vi[0]
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#define _b_waiters __u.__vi[1]
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#define _b_limit __u.__i[2]
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#define _b_count __u.__vi[3]
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#define _b_waiters2 __u.__vi[4]
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#define _b_inst __u.__p[3]
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#include "pthread_arch.h"
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#ifndef CANARY
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#define CANARY canary
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#endif
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#ifndef DTP_OFFSET
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#define DTP_OFFSET 0
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#endif
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#define SIGTIMER 32
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#define SIGCANCEL 33
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#define SIGSYNCCALL 34
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#define SIGALL_SET ((sigset_t *)(const unsigned long long [2]){ -1,-1 })
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#define SIGPT_SET \
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((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
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[sizeof(long)==4] = 3UL<<(32*(sizeof(long)>4)) })
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#define SIGTIMER_SET \
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((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
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0x80000000 })
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pthread_t __pthread_self_init(void);
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int __clone(int (*)(void *), void *, int, void *, ...);
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int __set_thread_area(void *);
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int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
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int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
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void __lock(volatile int *);
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void __unmapself(void *, size_t);
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void __vm_wait(void);
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void __vm_lock(void);
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void __vm_unlock(void);
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int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
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int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int);
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void __wait(volatile int *, volatile int *, int, int);
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static inline void __wake(volatile void *addr, int cnt, int priv)
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{
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if (priv) priv = 128;
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if (cnt<0) cnt = INT_MAX;
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__syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
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__syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
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}
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void __acquire_ptc(void);
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void __release_ptc(void);
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void __inhibit_ptc(void);
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void __block_all_sigs(void *);
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void __block_app_sigs(void *);
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void __restore_sigs(void *);
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#define DEFAULT_STACK_SIZE 81920
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#define DEFAULT_GUARD_SIZE 4096
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#define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)
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#endif
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