sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c

   1 /* POSIX.1 sigaction call for Linux/SPARC64.
   2    Copyright (C) 1997-2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Miguel de Icaza <miguel@nuclecu.unam.mx> and
   5                   Jakub Jelinek <jj@ultra.linux.cz>.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include <string.h>
  22 #include <syscall.h>
  23 #include <sysdep.h>
  24
  25 static void __rt_sigreturn_stub (void);
  26
  27 #define STUB(act) \
  28   (((unsigned long) &__rt_sigreturn_stub) - 8),
  29
  30 #include <sysdeps/unix/sysv/linux/sigaction.c>
  31
  32 static
  33 inhibit_stack_protector
  34 void
  35 __rt_sigreturn_stub (void)
  36 {
  37   __asm__ ("mov %0, %%g1\n\t"
  38            "ta  0x6d\n\t"
  39            : /* no outputs */
  40            : "i" (__NR_rt_sigreturn));
  41 }