lib/libthread_xu/thread/thr_distribute.c

   1
   2 #include "namespace.h"
   3 #include <machine/tls.h>
   4 #include <sys/mman.h>
   5 #include <sys/queue.h>
   6 #include <sys/stat.h>
   7 #include <sys/types.h>
   8 #include <errno.h>
   9 #include <fcntl.h>
  10 #include <limits.h>
  11 #include <pthread.h>
  12 #include <stdarg.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15 #include <time.h>
  16 #include <unistd.h>
  17 #ifdef _PTHREADS_DEBUGGING
  18 #include <stdio.h>
  19 #endif
  20 #include "un-namespace.h"
  21
  22 #include "thr_private.h"
  23 void
  24 _libthread_distribute_static_tls(size_t offset, void *src,
  25                                  size_t len, size_t total_len);
  26
  27 void
  28 _libthread_distribute_static_tls(size_t offset, void *src,
  29                                  size_t len, size_t total_len)
  30 {
  31         struct pthread *curthread = tls_get_curthread();
  32         struct pthread *td;
  33         char *tlsbase;
  34
  35         THREAD_LIST_LOCK(curthread);
  36         TAILQ_FOREACH(td, &_thread_list, tle) {
  37                 tlsbase = (char *)td->tcb - offset;
  38                 memcpy(tlsbase, src, len);
  39                 memset(tlsbase + len, 0, total_len - len);
  40         }
  41         THREAD_LIST_UNLOCK(curthread);
  42 }
  43
  44 __strong_reference(_libthread_distribute_static_tls, _pthread_distribute_static_tls);