sysdeps/mach/hurd/alpha/longjmp-ctx.c

   1 /* Perform a `longjmp' on a `struct sigcontext'.  Alpha version.
   2 Copyright (C) 1994 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 Library General Public License as
   7 published by the Free Software Foundation; either version 2 of the
   8 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 Library General Public License for more details.
  14
  15 You should have received a copy of the GNU Library General Public
  16 License along with the GNU C Library; see the file COPYING.LIB.  If
  17 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  18 Cambridge, MA 02139, USA.  */
  19
  20 #include <setjmp.h>
  21 #include <hurd/signal.h>
  22 #include <string.h>
  23
  24 void
  25 _hurd_longjmp_sigcontext (struct sigcontext *scp, jmp_buf env, int retval)
  26 {
  27   memset (scp, 0, sizeof (*scp));
  28   scp->sc_regs[9] = env[0].__9;
  29   scp->sc_regs[11] = env[0].__11;
  30   scp->sc_regs[12] = env[0].__12;
  31   scp->sc_regs[13] = env[0].__13;
  32   scp->sc_regs[14] = env[0].__14;
  33   scp->sc_regs[15] = (long int) env[0].__fp;
  34   scp->sc_regs[30] = (long int) env[0].__sp;
  35   scp->sc_pc = (long int) env[0].__pc;
  36
  37   memcpy (&scp->sc_fpregs[2], &env[0].__f2, sizeof (double));
  38 }