1 /* 2 * Copyright (c) 2020 Intel Corporation. 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #include <string.h> 8 #include <zephyr/debug/coredump.h> 9 10 #define ARCH_HDR_VER 2 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 26 /* callee registers - optionally collected in V2 */ 27 uint32_t r4; 28 uint32_t r5; 29 uint32_t r6; 30 uint32_t r7; 31 uint32_t r8; 32 uint32_t r9; 33 uint32_t r10; 34 uint32_t r11; 35 } r; 36 } __packed; 37 38 /* 39 * This might be too large for stack space if defined 40 * inside function. So do it here. 41 */ 42 static struct arm_arch_block arch_blk; 43 arch_coredump_info_dump(const struct arch_esf * esf)44void arch_coredump_info_dump(const struct arch_esf *esf) 45 { 46 struct coredump_arch_hdr_t hdr = { 47 .id = COREDUMP_ARCH_HDR_ID, 48 .hdr_version = ARCH_HDR_VER, 49 .num_bytes = sizeof(arch_blk), 50 }; 51 52 /* Nothing to process */ 53 if (esf == NULL) { 54 return; 55 } 56 57 (void)memset(&arch_blk, 0, sizeof(arch_blk)); 58 59 /* 60 * 17 registers expected by GDB. 61 * Not all are in ESF but the GDB stub 62 * will need to send all 17 as one packet. 63 * The stub will need to send undefined 64 * for registers not presented in coredump. 65 */ 66 arch_blk.r.r0 = esf->basic.r0; 67 arch_blk.r.r1 = esf->basic.r1; 68 arch_blk.r.r2 = esf->basic.r2; 69 arch_blk.r.r3 = esf->basic.r3; 70 arch_blk.r.r12 = esf->basic.ip; 71 arch_blk.r.lr = esf->basic.lr; 72 arch_blk.r.pc = esf->basic.pc; 73 arch_blk.r.xpsr = esf->basic.xpsr; 74 75 arch_blk.r.sp = z_arm_coredump_fault_sp; 76 77 #if defined(CONFIG_EXTRA_EXCEPTION_INFO) 78 if (esf->extra_info.callee) { 79 arch_blk.r.r4 = esf->extra_info.callee->v1; 80 arch_blk.r.r5 = esf->extra_info.callee->v2; 81 arch_blk.r.r6 = esf->extra_info.callee->v3; 82 arch_blk.r.r7 = esf->extra_info.callee->v4; 83 arch_blk.r.r8 = esf->extra_info.callee->v5; 84 arch_blk.r.r9 = esf->extra_info.callee->v6; 85 arch_blk.r.r10 = esf->extra_info.callee->v7; 86 arch_blk.r.r11 = esf->extra_info.callee->v8; 87 } 88 #endif 89 90 /* Send for output */ 91 coredump_buffer_output((uint8_t *)&hdr, sizeof(hdr)); 92 coredump_buffer_output((uint8_t *)&arch_blk, sizeof(arch_blk)); 93 } 94 arch_coredump_tgt_code_get(void)95uint16_t arch_coredump_tgt_code_get(void) 96 { 97 return COREDUMP_TGT_ARM_CORTEX_M; 98 } 99
