mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-04 02:51:56 +00:00
2ac4a04b92
Updating global variable's name to follow a consistent naming convention.
Explicitly moved from __ to _ by direction of Ben Walsh
Change accomplished with the following script:
#!/bin/bash
echo "Searching for ${1} to replace with ${2}"
find ./ \( -name "*.[chs]" -o -name "sysgen.py" -o -name "*.kconf" -o -name "*.arch" \) \
! -path "./host/src/genIdt/*" \
! -path "*/outdir/*" | xargs sed -i 's/\b'${1}'\b/'${2}'/g';
Change-Id: Idd6f7c3c2fdd818f0a794985f3689705cac3c0a2
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/* compiler_stack_protect.c - Compiler stack protection (kernel part) */
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/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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DESCRIPTION
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This module provides functions to support compiler stack protection
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using canaries. This feature is enabled with configuration
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CONFIG_STACK_CANARIES=y.
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When this feature is enabled, the compiler generated code refers to
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function __stack_chk_fail and global variable __stack_chk_guard.
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*/
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/* includes */
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#include <toolchain.h> /* compiler specific configurations */
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#if defined(CONFIG_STACK_CANARIES)
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#include <nanok.h>
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#include <toolchain.h>
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#include <sections.h>
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/*******************************************************************************
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*
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* _StackCheckHandler - stack canary error handler
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*
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* This function is invoked when a stack canary error is detected.
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*
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* RETURNS: Does not return
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*/
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void FUNC_NORETURN _StackCheckHandler(void)
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{
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/* Stack canary error is a software fatal condition; treat it as such.
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*/
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_NanoFatalErrorHandler(_NANO_ERR_STACK_CHK_FAIL, &_default_esf);
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}
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#endif /* CONFIG_STACK_CANARIES */
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#ifdef CONFIG_STACK_CANARIES
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/* Global variable */
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/*
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* Symbol referenced by GCC compiler generated code for canary value.
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* The canary value gets initialized in _Cstart().
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*/
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void __noinit *__stack_chk_guard;
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/*******************************************************************************
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*
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* __stack_chk_fail - Referenced by GCC compiler generated code
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*
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* This routine is invoked when a stack canary error is detected, indicating
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* a buffer overflow or stack corruption problem.
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*/
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FUNC_ALIAS(_StackCheckHandler, __stack_chk_fail, void);
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#endif
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