[352] | 1 | #ifndef _PTHREAD_IMPL_H
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| 2 | #define _PTHREAD_IMPL_H
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| 3 |
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| 4 | #include <pthread.h>
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| 5 | #include <signal.h>
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| 6 | #include <errno.h>
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| 7 | #include <limits.h>
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| 8 | #include "libc.h"
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| 9 | #include "syscall.h"
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| 10 | #include "atomic.h"
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| 11 | #include "futex.h"
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| 12 |
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| 13 | #define pthread __pthread
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| 14 |
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| 15 | struct pthread {
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| 16 | struct pthread *self;
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| 17 | void **dtv, *unused1, *unused2;
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| 18 | uintptr_t sysinfo;
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| 19 | uintptr_t canary, canary2;
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| 20 | pid_t tid, pid;
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| 21 | int tsd_used, errno_val;
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| 22 | volatile int cancel, canceldisable, cancelasync;
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| 23 | int detached;
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| 24 | unsigned char *map_base;
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| 25 | size_t map_size;
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| 26 | void *stack;
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| 27 | size_t stack_size;
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| 28 | void *start_arg;
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| 29 | void *(*start)(void *);
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| 30 | void *result;
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| 31 | struct __ptcb *cancelbuf;
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| 32 | void **tsd;
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| 33 | volatile int dead;
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| 34 | struct {
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| 35 | volatile void *volatile head;
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| 36 | long off;
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| 37 | volatile void *volatile pending;
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| 38 | } robust_list;
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| 39 | int unblock_cancel;
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| 40 | volatile int timer_id;
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| 41 | locale_t locale;
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| 42 | volatile int killlock[2];
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| 43 | volatile int exitlock[2];
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| 44 | volatile int startlock[2];
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| 45 | unsigned long sigmask[_NSIG/8/sizeof(long)];
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| 46 | char *dlerror_buf;
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| 47 | int dlerror_flag;
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| 48 | void *stdio_locks;
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| 49 | uintptr_t canary_at_end;
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| 50 | void **dtv_copy;
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| 51 | };
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| 52 |
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| 53 | struct __timer {
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| 54 | int timerid;
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| 55 | pthread_t thread;
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| 56 | };
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| 57 |
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| 58 | #define __SU (sizeof(size_t)/sizeof(int))
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| 59 |
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| 60 | #define _a_stacksize __u.__s[0]
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| 61 | #define _a_guardsize __u.__s[1]
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| 62 | #define _a_stackaddr __u.__s[2]
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| 63 | #define _a_detach __u.__i[3*__SU+0]
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| 64 | #define _a_sched __u.__i[3*__SU+1]
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| 65 | #define _a_policy __u.__i[3*__SU+2]
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| 66 | #define _a_prio __u.__i[3*__SU+3]
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| 67 | #define _m_type __u.__i[0]
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| 68 | #define _m_lock __u.__vi[1]
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| 69 | #define _m_waiters __u.__vi[2]
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| 70 | #define _m_prev __u.__p[3]
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| 71 | #define _m_next __u.__p[4]
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| 72 | #define _m_count __u.__i[5]
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| 73 | #define _c_shared __u.__p[0]
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| 74 | #define _c_seq __u.__vi[2]
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| 75 | #define _c_waiters __u.__vi[3]
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| 76 | #define _c_clock __u.__i[4]
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| 77 | #define _c_lock __u.__vi[8]
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| 78 | #define _c_head __u.__p[1]
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| 79 | #define _c_tail __u.__p[5]
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| 80 | #define _rw_lock __u.__vi[0]
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| 81 | #define _rw_waiters __u.__vi[1]
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| 82 | #define _rw_shared __u.__i[2]
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| 83 | #define _b_lock __u.__vi[0]
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| 84 | #define _b_waiters __u.__vi[1]
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| 85 | #define _b_limit __u.__i[2]
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| 86 | #define _b_count __u.__vi[3]
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| 87 | #define _b_waiters2 __u.__vi[4]
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| 88 | #define _b_inst __u.__p[3]
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| 89 |
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| 90 | #include "pthread_arch.h"
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| 91 |
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| 92 | #ifndef CANARY
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| 93 | #define CANARY canary
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| 94 | #endif
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| 95 |
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| 96 | #ifndef DTP_OFFSET
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| 97 | #define DTP_OFFSET 0
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| 98 | #endif
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| 99 |
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| 100 | #ifndef tls_mod_off_t
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| 101 | #define tls_mod_off_t size_t
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| 102 | #endif
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| 103 |
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| 104 | #define SIGTIMER 32
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| 105 | #define SIGCANCEL 33
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| 106 | #define SIGSYNCCALL 34
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| 107 |
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| 108 | #define SIGALL_SET ((sigset_t *)(const unsigned long long [2]){ -1,-1 })
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| 109 | #define SIGPT_SET \
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| 110 | ((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
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| 111 | [sizeof(long)==4] = 3UL<<(32*(sizeof(long)>4)) })
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| 112 | #define SIGTIMER_SET \
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| 113 | ((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
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| 114 | 0x80000000 })
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| 115 |
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| 116 | pthread_t __pthread_self_init(void);
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| 117 |
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| 118 | int __clone(int (*)(void *), void *, int, void *, ...);
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| 119 | int __set_thread_area(void *);
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| 120 | int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
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| 121 | int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
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| 122 | void __lock(volatile int *);
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| 123 | void __unmapself(void *, size_t);
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| 124 |
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| 125 | void __vm_wait(void);
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| 126 | void __vm_lock(void);
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| 127 | void __vm_unlock(void);
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| 128 |
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| 129 | int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
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| 130 | int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int);
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| 131 | void __wait(volatile int *, volatile int *, int, int);
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| 132 | static inline void __wake(volatile void *addr, int cnt, int priv)
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| 133 | {
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| 134 | if (priv) priv = FUTEX_PRIVATE;
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| 135 | if (cnt<0) cnt = INT_MAX;
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| 136 | __syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
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| 137 | __syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
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| 138 | }
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| 139 |
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| 140 | void __acquire_ptc(void);
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| 141 | void __release_ptc(void);
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| 142 | void __inhibit_ptc(void);
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| 143 |
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| 144 | void __block_all_sigs(void *);
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| 145 | void __block_app_sigs(void *);
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| 146 | void __restore_sigs(void *);
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| 147 |
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| 148 | #define DEFAULT_STACK_SIZE 81920
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| 149 | #define DEFAULT_GUARD_SIZE 4096
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| 150 |
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| 151 | #define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)
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| 152 |
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| 153 | #endif
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