| /* |
| * Copyright (c) 2014 Wind River Systems, Inc. |
| * |
| * Licensed 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. |
| */ |
| |
| /** |
| * @file |
| * @brief ARM Cortex-M system fatal error handler |
| * |
| * This module provides the _SysFatalErrorHandler() routine for Cortex-M |
| * platforms. |
| */ |
| |
| #include <kernel.h> |
| #include <toolchain.h> |
| #include <sections.h> |
| #include <kernel_structs.h> |
| #include <misc/printk.h> |
| |
| /** |
| * |
| * @brief 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 thread 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. |
| * |
| * @param reason fatal error reason |
| * @param pEsf pointer to exception stack frame |
| * |
| * @return N/A |
| */ |
| FUNC_NORETURN void _SysFatalErrorHandler(unsigned int reason, |
| const NANO_ESF *pEsf) |
| { |
| ARG_UNUSED(reason); |
| ARG_UNUSED(pEsf); |
| |
| if (k_is_in_isr() || _is_thread_essential()) { |
| printk("Fatal fault in %s! Spinning...\n", |
| k_is_in_isr() ? "ISR" : "essential thread"); |
| for (;;) |
| ; /* spin forever */ |
| } |
| printk("Fatal fault in thread %p! Aborting.\n", _current); |
| k_thread_abort(_current); |
| |
| CODE_UNREACHABLE; |
| } |