| /* Copyright (C) 1997, 2002 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Richard Henderson (rth@tamu.edu). |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| /* __sigsetjmp is implemented in terms of the getcontext trap on |
| Linux/Sparc64. */ |
| |
| #include <sysdep.h> |
| |
| /* Offsets into the jmp_buf structure. */ |
| |
| #define O_mask_was_saved 512 |
| #define O_gregs 32 |
| #define O_g1 (O_gregs + 4*8) |
| |
| /* int _setjmp(jmp_buf) */ |
| |
| ENTRY(_setjmp) |
| ba __sigsetjmp_local |
| set 0, %o1 |
| END(_setjmp) |
| libc_hidden_def (_setjmp) |
| |
| /* int setjmp(jmp_buf) */ |
| |
| ENTRY(setjmp) |
| ba,pt %xcc, __sigsetjmp_local |
| set 1, %o1 |
| END(setjmp) |
| |
| /* int __sigsetjmp(jmp_buf, savemask) */ |
| |
| ENTRY(__sigsetjmp) |
| __sigsetjmp_local: |
| |
| /* Record whether the user is intending to save the sigmask. */ |
| st %o1, [%o0 + O_mask_was_saved] |
| |
| /* Load up our return value, as longjmp is going to override |
| the jmp_buf on its way back. */ |
| mov %g0, %g1 |
| |
| /* And call getcontext! */ |
| ta 0x6e |
| |
| retl |
| mov %g1, %o0 |
| |
| END(__sigsetjmp) |
| |
| weak_extern(_setjmp) |
| weak_extern(setjmp) |
