sysdeps/unix/sysv/linux/arm/libc_sigaction.c

   1 /* Copyright (C) 1997-2024 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 #define SA_RESTORER     0x04000000
  19
  20 extern void __default_sa_restorer (void);
  21 extern void __default_rt_sa_restorer (void);
  22
  23 #define SET_SA_RESTORER(kact, act)                              \
  24  ({                                                             \
  25    if ((kact)->sa_flags & SA_RESTORER)                          \
  26      (kact)->sa_restorer = (act)->sa_restorer;                  \
  27    else                                                         \
  28      {                                                          \
  29        (kact)->sa_restorer = ((kact)->sa_flags & SA_SIGINFO)    \
  30                              ? __default_rt_sa_restorer         \
  31                              : __default_sa_restorer;           \
  32        (kact)->sa_flags |= SA_RESTORER;                         \
  33      }                                                          \
  34  })
  35
  36 #define RESET_SA_RESTORER(act, kact)                            \
  37   (act)->sa_restorer = (kact)->sa_restorer;
  38
  39 #include <sysdeps/unix/sysv/linux/libc_sigaction.c>