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1//===-- RegisterContextMinidump_x86_64.h ------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_PROCESS_MINIDUMP_REGISTERCONTEXTMINIDUMP_X86_64_H10#define LLDB_SOURCE_PLUGINS_PROCESS_MINIDUMP_REGISTERCONTEXTMINIDUMP_X86_64_H11 12#include "MinidumpTypes.h"13 14#include "Plugins/Process/Utility/RegisterInfoInterface.h"15#include "Plugins/Process/Utility/lldb-x86-register-enums.h"16 17#include "lldb/Target/RegisterContext.h"18 19#include "llvm/ADT/ArrayRef.h"20#include "llvm/ADT/BitmaskEnum.h"21#include "llvm/Support/Endian.h"22 23// C includes24// C++ includes25 26namespace lldb_private {27 28namespace minidump {29 30// This function receives an ArrayRef pointing to the bytes of the Minidump31// register context and returns a DataBuffer that's ordered by the offsets32// specified in the RegisterInfoInterface argument33// This way we can reuse the already existing register contexts34lldb::DataBufferSP35ConvertMinidumpContext_x86_64(llvm::ArrayRef<uint8_t> source_data,36 RegisterInfoInterface *target_reg_interface);37 38struct Uint128 {39 llvm::support::ulittle64_t high;40 llvm::support::ulittle64_t low;41};42 43// Reference: see breakpad/crashpad source or WinNT.h44struct MinidumpXMMSaveArea32AMD64 {45 llvm::support::ulittle16_t control_word;46 llvm::support::ulittle16_t status_word;47 uint8_t tag_word;48 uint8_t reserved1;49 llvm::support::ulittle16_t error_opcode;50 llvm::support::ulittle32_t error_offset;51 llvm::support::ulittle16_t error_selector;52 llvm::support::ulittle16_t reserved2;53 llvm::support::ulittle32_t data_offset;54 llvm::support::ulittle16_t data_selector;55 llvm::support::ulittle16_t reserved3;56 llvm::support::ulittle32_t mx_csr;57 llvm::support::ulittle32_t mx_csr_mask;58 Uint128 float_registers[8];59 Uint128 xmm_registers[16];60 uint8_t reserved4[96];61};62 63struct MinidumpContext_x86_64 {64 // Register parameter home addresses.65 llvm::support::ulittle64_t p1_home;66 llvm::support::ulittle64_t p2_home;67 llvm::support::ulittle64_t p3_home;68 llvm::support::ulittle64_t p4_home;69 llvm::support::ulittle64_t p5_home;70 llvm::support::ulittle64_t p6_home;71 72 // The context_flags field determines which parts73 // of the structure are populated (have valid values)74 llvm::support::ulittle32_t context_flags;75 llvm::support::ulittle32_t mx_csr;76 77 // The next register is included with78 // MinidumpContext_x86_64_Flags::Control79 llvm::support::ulittle16_t cs;80 81 // The next 4 registers are included with82 // MinidumpContext_x86_64_Flags::Segments83 llvm::support::ulittle16_t ds;84 llvm::support::ulittle16_t es;85 llvm::support::ulittle16_t fs;86 llvm::support::ulittle16_t gs;87 88 // The next 2 registers are included with89 // MinidumpContext_x86_64_Flags::Control90 llvm::support::ulittle16_t ss;91 llvm::support::ulittle32_t eflags;92 93 // The next 6 registers are included with94 // MinidumpContext_x86_64_Flags::DebugRegisters95 llvm::support::ulittle64_t dr0;96 llvm::support::ulittle64_t dr1;97 llvm::support::ulittle64_t dr2;98 llvm::support::ulittle64_t dr3;99 llvm::support::ulittle64_t dr6;100 llvm::support::ulittle64_t dr7;101 102 // The next 4 registers are included with103 // MinidumpContext_x86_64_Flags::Integer104 llvm::support::ulittle64_t rax;105 llvm::support::ulittle64_t rcx;106 llvm::support::ulittle64_t rdx;107 llvm::support::ulittle64_t rbx;108 109 // The next register is included with110 // MinidumpContext_x86_64_Flags::Control111 llvm::support::ulittle64_t rsp;112 113 // The next 11 registers are included with114 // MinidumpContext_x86_64_Flags::Integer115 llvm::support::ulittle64_t rbp;116 llvm::support::ulittle64_t rsi;117 llvm::support::ulittle64_t rdi;118 llvm::support::ulittle64_t r8;119 llvm::support::ulittle64_t r9;120 llvm::support::ulittle64_t r10;121 llvm::support::ulittle64_t r11;122 llvm::support::ulittle64_t r12;123 llvm::support::ulittle64_t r13;124 llvm::support::ulittle64_t r14;125 llvm::support::ulittle64_t r15;126 127 // The next register is included with128 // MinidumpContext_x86_64_Flags::Control129 llvm::support::ulittle64_t rip;130 131 // The next set of registers are included with132 // MinidumpContext_x86_64_Flags:FloatingPoint133 union FPR {134 MinidumpXMMSaveArea32AMD64 flt_save;135 struct {136 Uint128 header[2];137 Uint128 legacy[8];138 Uint128 xmm[16];139 } sse_registers;140 };141 142 enum {143 VRCount = 26,144 };145 146 Uint128 vector_register[VRCount];147 llvm::support::ulittle64_t vector_control;148 149 // The next 5 registers are included with150 // MinidumpContext_x86_64_Flags::DebugRegisters151 llvm::support::ulittle64_t debug_control;152 llvm::support::ulittle64_t last_branch_to_rip;153 llvm::support::ulittle64_t last_branch_from_rip;154 llvm::support::ulittle64_t last_exception_to_rip;155 llvm::support::ulittle64_t last_exception_from_rip;156 157 // LLDB can save core files and save extra information that isn't available158 // from Google breakpad, or similar, minidump files.159 llvm::support::ulittle64_t fs_base;160 llvm::support::ulittle64_t gs_base;161};162 163// For context_flags. These values indicate the type of164// context stored in the structure. The high 24 bits identify the CPU, the165// low 8 bits identify the type of context saved.166LLVM_ENABLE_BITMASK_ENUMS_IN_NAMESPACE();167 168enum class MinidumpContext_x86_64_Flags : uint32_t {169 x86_64_Flag = 0x00100000,170 Control = x86_64_Flag | 0x00000001,171 Integer = x86_64_Flag | 0x00000002,172 Segments = x86_64_Flag | 0x00000004,173 FloatingPoint = x86_64_Flag | 0x00000008,174 DebugRegisters = x86_64_Flag | 0x00000010,175 XState = x86_64_Flag | 0x00000040,176 LLDBSpecific = x86_64_Flag | 0x80000000,177 178 Full = Control | Integer | FloatingPoint,179 All = Full | Segments | DebugRegisters | LLDBSpecific,180 181 LLVM_MARK_AS_BITMASK_ENUM(/* LargestValue = */ All)182};183 184} // end namespace minidump185} // end namespace lldb_private186#endif // LLDB_SOURCE_PLUGINS_PROCESS_MINIDUMP_REGISTERCONTEXTMINIDUMP_X86_64_H187