sysdeps/sparc/sparc32/setjmp.S

   1 /* Copyright (C) 1991, 1993, 1994, 1996, 1997 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 Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    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    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <sysdep.h>
  20 #include <sys/trap.h>
  21
  22 #define _ASM 1
  23 #include <bits/setjmp.h>
  24
  25 ENTRY(__setjmp)
  26         b       1f
  27          set    0, %o1
  28 END(__setjmp)
  29
  30 ENTRY(setjmp)
  31         set     1, %o1
  32 END(setjmp)
  33
  34 ENTRY (__sigsetjmp)
  35 1:
  36         /* Save our PC, SP and FP.  Save the signal mask if requested with
  37            a tail-call for simplicity; it always returns zero.  */
  38         ta      ST_FLUSH_WINDOWS
  39
  40         st      %o7, [%o0 + (JB_PC * 4)]
  41         st      %sp, [%o0 + (JB_SP * 4)]
  42         st      %fp, [%o0 + (JB_FP * 4)]
  43
  44         mov     %o7, %g1
  45         call    __sigjmp_save
  46          mov    %g1, %o7
  47 END(__sigsetjmp)
  48
  49 weak_alias(__setjmp, _setjmp)
  50 weak_extern(setjmp)