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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