diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/hardfault/nrf51/handler/hardfault_handler_keil.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/hardfault/nrf51/handler/hardfault_handler_keil.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/hardfault/nrf51/handler/hardfault_handler_keil.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/hardfault/nrf51/handler/hardfault_handler_keil.c new file mode 100644 index 0000000..a1dcd3e --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/hardfault/nrf51/handler/hardfault_handler_keil.c @@ -0,0 +1,88 @@ +/** + * Copyright (c) 2015 - 2018, 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) |