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 1 11 12 struct x86_arch_block { 13 uint32_t vector; 14 uint32_t code; 15 16 struct { 17 uint32_t eax; 18 uint32_t ecx; 19 uint32_t edx; 20 uint32_t ebx; 21 uint32_t esp; 22 uint32_t ebp; 23 uint32_t esi; 24 uint32_t edi; 25 uint32_t eip; 26 uint32_t eflags; 27 uint32_t cs; 28 } r; 29 } __packed; 30 31 /* 32 * This might be too large for stack space if defined 33 * inside function. So do it here. 34 */ 35 static struct x86_arch_block arch_blk; 36 arch_coredump_info_dump(const z_arch_esf_t * esf)37void arch_coredump_info_dump(const z_arch_esf_t *esf) 38 { 39 struct coredump_arch_hdr_t hdr = { 40 .id = COREDUMP_ARCH_HDR_ID, 41 .hdr_version = ARCH_HDR_VER, 42 .num_bytes = sizeof(arch_blk), 43 }; 44 45 /* Nothing to process */ 46 if (esf == NULL) { 47 return; 48 } 49 50 (void)memset(&arch_blk, 0, sizeof(arch_blk)); 51 52 arch_blk.vector = z_x86_exception_vector; 53 arch_blk.code = esf->errorCode; 54 55 /* 56 * 16 registers expected by GDB. 57 * Not all are in ESF but the GDB stub 58 * will need to send all 16 as one packet. 59 * The stub will need to send undefined 60 * for registers not presented in coredump. 61 */ 62 arch_blk.r.eax = esf->eax; 63 arch_blk.r.ebx = esf->ebx; 64 arch_blk.r.ecx = esf->ecx; 65 arch_blk.r.edx = esf->edx; 66 arch_blk.r.esp = esf->esp; 67 arch_blk.r.ebp = esf->ebp; 68 arch_blk.r.esi = esf->esi; 69 arch_blk.r.edi = esf->edi; 70 arch_blk.r.eip = esf->eip; 71 arch_blk.r.eflags = esf->eflags; 72 arch_blk.r.cs = esf->cs & 0xFFFFU; 73 74 /* Send for output */ 75 coredump_buffer_output((uint8_t *)&hdr, sizeof(hdr)); 76 coredump_buffer_output((uint8_t *)&arch_blk, sizeof(arch_blk)); 77 } 78 arch_coredump_tgt_code_get(void)79uint16_t arch_coredump_tgt_code_get(void) 80 { 81 return COREDUMP_TGT_X86; 82 } 83
