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- /**
- * Copyright (c) 2015 - 2020, Nordic Semiconductor ASA
- *
- * All rights reserved.
- *
- * 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, except as embedded into a Nordic
- * Semiconductor ASA integrated circuit in a product or a software update for
- * such product, 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 Nordic Semiconductor ASA nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * 4. This software, with or without modification, must only be used with a
- * Nordic Semiconductor ASA integrated circuit.
- *
- * 5. Any software provided in binary form under this license must not be reverse
- * engineered, decompiled, modified and/or disassembled.
- *
- * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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.
- *
- */
- #include "sdk_common.h"
- #if NRF_MODULE_ENABLED(HARDFAULT_HANDLER)
- #include <stdint.h>
- #include "compiler_abstraction.h"
- //lint -save -e27
- __ASM void HardFault_Handler(void)
- {
- PRESERVE8
- EXTERN HardFault_c_handler
- EXTERN |STACK$$Base|
- EXTERN |STACK$$Limit|
- ldr r0, =0xFFFFFFFD
- cmp r0, lr
- bne HardFault_Handler_ChooseMSP
- /* Reading PSP into R0 */
- mrs r0, PSP
- b HardFault_Handler_Continue
- HardFault_Handler_ChooseMSP
- /* Reading MSP into R0 */
- mrs r0, MSP
- /* -----------------------------------------------------------------
- * If we have selected MSP, check if we may use stack safely.
- * If not - reset the stack to the initial value. */
- ldr r1, =|STACK$$Limit|
- ldr r2, =|STACK$$Base|
- /* MSP is in the range of the stack area */
- cmp r0, r1
- bhi HardFault_MoveSP
- cmp r0, r2
- bhi HardFault_Handler_Continue
- /* ----------------------------------------------------------------- */
- HardFault_MoveSP
- mov SP, r1
- movs r0, #0
- HardFault_Handler_Continue
- ldr r3, =HardFault_c_handler
- bx r3
- ALIGN
- }
- //lint -restore
- #endif //NRF_MODULE_ENABLED(HARDFAULT_HANDLER)
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