| /* Copyright (C) 2009-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| 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, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <signal.h> |
| #include <stdio.h> |
| #define __longjmp ____longjmp_chk |
| #define CHECK_SP(saved_sp, cur_sp, sp_type) \ |
| do { \ |
| sp_type sp_saved = (sp_type) (saved_sp); \ |
| if (sp_saved < (cur_sp)) \ |
| { \ |
| struct __jmp_buf_internal_tag *env_save = env_arg; \ |
| int val_save = val_arg; \ |
| stack_t ss; \ |
| int ret = __sigaltstack (NULL, &ss); \ |
| if (ret == 0 \ |
| && (!(ss.ss_flags & SS_ONSTACK) \ |
| || ((unsigned sp_type) ((sp_type) (long) ss.ss_sp \ |
| + (sp_type) ss.ss_size \ |
| - sp_saved) \ |
| < ss.ss_size))) \ |
| __fortify_fail ("longjmp causes uninitialized stack frame"); \ |
| asm volatile ("move %0, %1" : "=r" (env) : "r" (env_save)); \ |
| asm volatile ("move %0, %1" : "=r" (val) : "r" (val_save)); \ |
| } \ |
| } while (0) |
| #include <__longjmp.c> |
