112 lines
3.5 KiB
C
112 lines
3.5 KiB
C
/* fatal_error.c - ARCv2 system fatal error handler */
|
|
|
|
/*
|
|
* Copyright (c) 2014 Wind River Systems, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1) Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2) Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3) Neither the name of Wind River Systems nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
DESCRIPTION
|
|
This module provides the _SysFatalErrorHandler() routine for ARCv2 BSPs.
|
|
*/
|
|
|
|
#include <nanokernel.h>
|
|
#include <toolchain.h>
|
|
#include <sections.h>
|
|
#include "board.h"
|
|
|
|
#ifdef CONFIG_PRINTK
|
|
#include <misc/printk.h>
|
|
#define PRINTK(...) printk(__VA_ARGS__)
|
|
#else
|
|
#define PRINTK(...)
|
|
#endif
|
|
|
|
#ifdef CONFIG_MICROKERNEL
|
|
extern void _TaskAbort(void);
|
|
static inline void nonEssentialTaskAbort(void)
|
|
{
|
|
PRINTK("Fatal fault in task ! Aborting task.\n");
|
|
_TaskAbort();
|
|
}
|
|
#define NON_ESSENTIAL_TASK_ABORT() nonEssentialTaskAbort()
|
|
#else
|
|
#define NON_ESSENTIAL_TASK_ABORT() \
|
|
do {/* nothing */ \
|
|
} while ((0))
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* _SysFatalErrorHandler - fatal error handler
|
|
*
|
|
* This routine implements the corrective action to be taken when the system
|
|
* detects a fatal error.
|
|
*
|
|
* This sample implementation attempts to abort the current context and allow
|
|
* the system to continue executing, which may permit the system to continue
|
|
* functioning with degraded capabilities.
|
|
*
|
|
* System designers may wish to enhance or substitute this sample
|
|
* implementation to take other actions, such as logging error (or debug)
|
|
* information to a persistent repository and/or rebooting the system.
|
|
*
|
|
* RETURNS: N/A
|
|
*
|
|
* \NOMANUAL
|
|
*/
|
|
|
|
void _SysFatalErrorHandler(
|
|
unsigned int reason, /* fatal error reason */
|
|
const NANO_ESF *pEsf /* pointer to exception stack frame */
|
|
)
|
|
{
|
|
nano_context_type_t curCtx = context_type_get();
|
|
|
|
ARG_UNUSED(reason);
|
|
ARG_UNUSED(pEsf);
|
|
|
|
if ((curCtx == NANO_CTX_ISR) || _context_essential_check(NULL)) {
|
|
PRINTK("Fatal fault in %s ! Spinning...\n",
|
|
NANO_CTX_ISR == curCtx
|
|
? "ISR"
|
|
: NANO_CTX_FIBER == curCtx ? "essential fiber"
|
|
: "essential task");
|
|
for (;;)
|
|
; /* spin forever */
|
|
}
|
|
|
|
if (NANO_CTX_FIBER == curCtx) {
|
|
PRINTK("Fatal fault in fiber ! Aborting fiber.\n");
|
|
fiber_abort();
|
|
return;
|
|
}
|
|
|
|
NON_ESSENTIAL_TASK_ABORT();
|
|
}
|