1  /* Compatibility symbols for old versions of signal.h.
       2     Copyright (C) 2017-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <signal.h>
      20  #include <sigsetops.h>
      21  #include <shlib-compat.h>
      22  
      23  /* These were formerly defined by <signal.h> as inline functions,
      24     so they require out-of-line compatibility definitions.  */
      25  #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_26)
      26  
      27  int
      28  attribute_compat_text_section
      29  __sigismember_compat (const __sigset_t *set, int sig)
      30  {
      31    return __sigismember (set, sig);
      32  }
      33  compat_symbol (libc, __sigismember_compat, __sigismember, GLIBC_2_0);
      34  
      35  int
      36  attribute_compat_text_section
      37  __sigaddset_compat (__sigset_t *set, int sig)
      38  {
      39    __sigaddset (set, sig);
      40    return 0;
      41  }
      42  compat_symbol (libc, __sigaddset_compat, __sigaddset, GLIBC_2_0);
      43  
      44  int
      45  attribute_compat_text_section
      46  __sigdelset_compat (__sigset_t *set, int sig)
      47  {
      48    __sigdelset (set, sig);
      49    return 0;
      50  }
      51  compat_symbol (libc, __sigdelset_compat, __sigdelset, GLIBC_2_0);
      52  
      53  #endif