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/*
* SPDX-FileCopyrightText: Copyright 2021 Arm Limited and/or its affiliates <open-source-office@arm.com>
* SPDX-License-Identifier: Apache-2.0
*
* 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.
*/
#ifdef __cplusplus
extern "C"
{
#endif
#include "RTE_Components.h"
#include <stdio.h>
#include <inttypes.h>
/**
* @brief Dump core registers on stdout
*/
static void LogCoreCPURegisters(void)
{
printf("CTRL : 0x%08" PRIx32 "\n", __get_CONTROL());
printf("IPSR : 0x%08" PRIx32 "\n", __get_IPSR());
printf("APSR : 0x%08" PRIx32 "\n", __get_APSR());
printf("xPSR : 0x%08" PRIx32 "\n", __get_xPSR());
printf("PSP : 0x%08" PRIx32 "\n", __get_PSP());
printf("MSP : 0x%08" PRIx32 "\n", __get_MSP());
printf("PRIMASK : 0x%08" PRIx32 "\n", __get_PRIMASK());
printf("BASEPRI : 0x%08" PRIx32 "\n", __get_BASEPRI());
printf("FAULTMSK: 0x%08" PRIx32 "\n", __get_FAULTMASK());
}
/**
* @brief Default interrupt handler - an infinite loop.
**/
__attribute__((noreturn)) static void DefaultHandler(void)
{
LogCoreCPURegisters();
while (1) {
/* Without the following line, armclang may optimize away the
* infinite loop because it'd be without side effects and thus
* undefined behaviour. */
__ASM volatile("");
}
}
#define DEFAULT_HANDLER_CALL(type) \
do { \
printf("\n"); \
printf("%s caught by function %s\n", \
type, __FUNCTION__); \
DefaultHandler(); \
} while (0)
#define DEFAULT_ERROR_HANDLER_CALL() \
DEFAULT_HANDLER_CALL("Exception")
#define DEFAULT_IRQ_HANDLER_CALL() \
DEFAULT_HANDLER_CALL("Interrupt")
/**
* Placeholder Exception Handlers for core interrupts.
*
* Weak definitions provided to be used if the user chooses not
* to override them.
**/
/**
* @brief Non maskable interrupt handler.
**/
__attribute__((weak)) void NMI_Handler(void)
{
DEFAULT_ERROR_HANDLER_CALL();
}
/**
* @brief Hardfault interrupt handler.
**/
__attribute__((weak)) void HardFault_Handler(void)
{
DEFAULT_ERROR_HANDLER_CALL();
}
/**
* @brief Memory management interrupt handler.
**/
__attribute__((weak)) void MemManage_Handler(void)
{
DEFAULT_IRQ_HANDLER_CALL();
}
/**
* @brief Bus fault interrupt handler.
**/
__attribute__((weak)) void BusFault_Handler(void)
{
DEFAULT_ERROR_HANDLER_CALL();
}
/**
* @brief Usage fault interrupt handler.
**/
__attribute__((weak)) void UsageFault_Handler(void)
{
DEFAULT_ERROR_HANDLER_CALL();
}
/**
* @brief Secure access fault interrupt handler.
**/
__attribute__((weak)) void SecureFault_Handler(void)
{
DEFAULT_ERROR_HANDLER_CALL();
}
/**
* @brief Supervisor call interrupt handler.
**/
__attribute__((weak)) void SVC_Handler(void)
{
DEFAULT_IRQ_HANDLER_CALL();
}
/**
* @brief Debug monitor interrupt handler.
**/
__attribute__((weak)) void DebugMon_Handler(void)
{
DEFAULT_IRQ_HANDLER_CALL();
}
/**
* @brief Pending SV call interrupt handler.
*/
__attribute__((weak)) void PendSV_Handler(void)
{
DEFAULT_IRQ_HANDLER_CALL();
}
#ifdef __cplusplus
}
#endif
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