nuttx/libs/libc/stdlib/lib_stackchk.c
qiaowei 1d97b2ecee stack check: Support Stack Smashing Protector(SSP)
and enable on sim as a demo. Here is the paper:
ftp://gcc.gnu.org/pub/gcc/summit/2003/Stackguard.pdf

Signed-off-by: qiaowei <qiaowei@xiaomi.com>
Change-Id: I1926936328dad54eee16b322dcaad0b42f9c4a62
2020-08-18 09:58:21 -07:00

61 lines
2.1 KiB
C

/****************************************************************************
* libs/libc/stdlib/lib_stackchk.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <assert.h>
#ifdef CONFIG_STACK_CANARIES
/****************************************************************************
* Public Data
****************************************************************************/
FAR const void *const __stack_chk_guard = &__stack_chk_guard;
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: __stack_chk_fail
*
* Description:
* The interface __stack_chk_fail() shall abort the function that called
* it with a message that a stack overflow has been detected. The program
* that called the function shall then exit.
*
* Input Parameters:
* None
*
* Returned Value:
* None.
*
****************************************************************************/
void __stack_chk_fail(void)
{
PANIC();
}
#endif /* CONFIG_STACK_CANARIES */