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Viewing changes to src/thread/pthread_self.c

  • Committer: Package Import Robot
  • Author(s): Kevin Bortis
  • Date: 2013-09-20 20:54:14 UTC
  • Revision ID: package-import@ubuntu.com-20130920205414-5b61trtmma18w58o
Tags: upstream-0.9.13
Import upstream version 0.9.13

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src/thread/pthread_self.c
 
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#include "pthread_impl.h"
 
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static struct pthread *main_thread = &(struct pthread){0};
 
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/* pthread_key_create.c overrides this */
 
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static const void *dummy[1] = { 0 };
 
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weak_alias(dummy, __pthread_tsd_main);
 
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static int init_main_thread()
 
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{
 
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        __syscall(SYS_rt_sigprocmask, SIG_UNBLOCK,
 
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                SIGPT_SET, 0, _NSIG/8);
 
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        if (__set_thread_area(TP_ADJ(main_thread)) < 0) return -1;
 
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        main_thread->canceldisable = libc.canceldisable;
 
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        main_thread->tsd = (void **)__pthread_tsd_main;
 
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        main_thread->errno_ptr = __errno_location();
 
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        main_thread->self = main_thread;
 
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        main_thread->tid = main_thread->pid =
 
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                __syscall(SYS_set_tid_address, &main_thread->tid);
 
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        if (!main_thread->dtv)
 
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                main_thread->dtv = (void *)dummy;
 
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        libc.main_thread = main_thread;
 
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        return 0;
 
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}
 
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pthread_t __pthread_self_def()
 
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{
 
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        static int init, failed;
 
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        if (!init) {
 
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                if (failed) return 0;
 
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                if (init_main_thread() < 0) failed = 1;
 
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                if (failed) return 0;
 
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                init = 1;
 
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        }
 
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        return __pthread_self();
 
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}
 
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weak_alias(__pthread_self_def, pthread_self);
 
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weak_alias(__pthread_self_def, __pthread_self_init);
 
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void *__install_initial_tls(void *p)
 
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{
 
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        main_thread = p;
 
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        return __pthread_self_def();
 
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}