1  /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <signal.h>
      19  #include <errno.h>
      20  #include <pthread.h>
      21  
      22  /* Raise the signal SIG.  */
      23  int
      24  raise (int sig)
      25  {
      26    int ret = __pthread_kill (__pthread_self (), sig);
      27    if (ret != 0)
      28      {
      29        __set_errno (ret);
      30        ret = -1;
      31      }
      32    return ret;
      33  }
      34  libc_hidden_def (raise)
      35  weak_alias (raise, gsignal)