mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-24 13:33:08 +03:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
/* Copyright (C) 2009-2018 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>
|