| /* setjmp/longjmp code |
| |
| Copyright (C) 1996 Miguel de Icaza |
| 1996 Jakub Jelinek |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| USA. */ |
| |
| #define _SV save %sp, -0x40, %sp |
| #define _RV restore |
| #define FLUSH_ALL_WINDOWS \ |
| _SV; _SV; _SV; _SV; _SV; _SV; _SV; \ |
| _RV; _RV; _RV; _RV; _RV; _RV; _RV; |
| |
| /* Save our return PC and SP. */ |
| .global _setjmp, setjmp, __sigsetjmp |
| setjmp: |
| _setjmp: |
| __sigsetjmp: |
| st %o7, [%o0] |
| st %sp, [%o0 + 4] |
| retl |
| clr %o0 |
| |
| .global __longjmp, longjmp |
| longjmp: |
| __longjmp: |
| /* Flush register windows. |
| Write all the register windows to their stack slots, and |
| mark them all as invalid (needing to be sucked up from the |
| stack when used). This ensures that all information needed to |
| unwind to these callers is in memory, not in the register |
| windows. */ |
| FLUSH_ALL_WINDOWS |
| ld [%o0], %o7 /* Return PC. */ |
| ld [%o0 + 4], %fp /* Saved SP. */ |
| sub %fp, 64, %sp /* Allocate a register save area. */ |
| tst %o1 |
| be,a 1f |
| mov 1, %o1 |
| 1: retl |
| /* On the way out, put the return value in %o0. */ |
| restore %o1, 0, %o0 |
