1 /* 2 * Copyright (c) 2020 Intel Corporation. 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #include <string.h> 8 #include <debug/coredump.h> 9 10 #define ARCH_HDR_VER 1 11 12 uint32_t z_arm_coredump_fault_sp; 13 14 struct arm_arch_block { 15 struct { 16 uint32_t r0; 17 uint32_t r1; 18 uint32_t r2; 19 uint32_t r3; 20 uint32_t r12; 21 uint32_t lr; 22 uint32_t pc; 23 uint32_t xpsr; 24 uint32_t sp; 25 } r; 26 } __packed; 27 28 /* 29 * This might be too large for stack space if defined 30 * inside function. So do it here. 31 */ 32 static struct arm_arch_block arch_blk; 33 arch_coredump_info_dump(const z_arch_esf_t * esf)34void arch_coredump_info_dump(const z_arch_esf_t *esf) 35 { 36 struct coredump_arch_hdr_t hdr = { 37 .id = COREDUMP_ARCH_HDR_ID, 38 .hdr_version = ARCH_HDR_VER, 39 .num_bytes = sizeof(arch_blk), 40 }; 41 42 /* Nothing to process */ 43 if (esf == NULL) { 44 return; 45 } 46 47 (void)memset(&arch_blk, 0, sizeof(arch_blk)); 48 49 /* 50 * 17 registers expected by GDB. 51 * Not all are in ESF but the GDB stub 52 * will need to send all 17 as one packet. 53 * The stub will need to send undefined 54 * for registers not presented in coredump. 55 */ 56 arch_blk.r.r0 = esf->basic.r0; 57 arch_blk.r.r1 = esf->basic.r1; 58 arch_blk.r.r2 = esf->basic.r2; 59 arch_blk.r.r3 = esf->basic.r3; 60 arch_blk.r.r12 = esf->basic.ip; 61 arch_blk.r.lr = esf->basic.lr; 62 arch_blk.r.pc = esf->basic.pc; 63 arch_blk.r.xpsr = esf->basic.xpsr; 64 65 arch_blk.r.sp = z_arm_coredump_fault_sp; 66 67 /* Send for output */ 68 coredump_buffer_output((uint8_t *)&hdr, sizeof(hdr)); 69 coredump_buffer_output((uint8_t *)&arch_blk, sizeof(arch_blk)); 70 } 71 arch_coredump_tgt_code_get(void)72uint16_t arch_coredump_tgt_code_get(void) 73 { 74 return COREDUMP_TGT_ARM_CORTEX_M; 75 } 76
