1 /* 2 * Copyright (c) 2021, Nordic Semiconductor ASA. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef __EXCEPTION_INFO_H__ 8 #define __EXCEPTION_INFO_H__ 9 10 #include <stdint.h> 11 12 #if defined(__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) 13 #define TRUSTZONE_PRESENT 14 #endif 15 16 #if defined(__ARM_ARCH_8_1M_MAIN__) || defined(__ARM_ARCH_8M_MAIN__) \ 17 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) 18 #define FAULT_STATUS_PRESENT 19 #endif 20 21 /* Arguments to EXCEPTION_INFO() */ 22 #define EXCEPTION_TYPE_SECUREFAULT 0 23 #define EXCEPTION_TYPE_HARDFAULT 1 24 #define EXCEPTION_TYPE_MEMFAULT 2 25 #define EXCEPTION_TYPE_BUSFAULT 3 26 #define EXCEPTION_TYPE_USAGEFAULT 4 27 #define EXCEPTION_TYPE_PLATFORM 5 28 29 /* This level of indirection is needed to fully resolve exception info when it's 30 * a macro 31 */ 32 #define _STRINGIFY(exception_info) #exception_info 33 34 /* Store context for an exception, and print an error message with the context. 35 * 36 * @param[in] exception_type One of the EXCEPTION_TYPE_* values defined above. Any 37 * other value will result in printing "Unknown". 38 */ 39 #ifdef TFM_EXCEPTION_INFO_DUMP 40 #define EXCEPTION_INFO(exception_type) \ 41 __ASM volatile( \ 42 "MOV r0, lr\n" \ 43 "MRS r1, MSP\n" \ 44 "MRS r2, PSP\n" \ 45 "MOVS r3, #" _STRINGIFY(exception_type) "\n" \ 46 "BL store_and_dump_context\n" \ 47 ) 48 49 /* Store context for an exception, then print the info. 50 * Call EXCEPTION_INFO() instead of calling this directly. 51 */ 52 void store_and_dump_context(uint32_t LR_in, uint32_t MSP_in, uint32_t PSP_in, 53 uint32_t exception_type); 54 #else 55 #define EXCEPTION_INFO(exception_type) 56 #endif 57 58 #endif /* __EXCEPTION_INFO_H__ */ 59
