//===-- RegisterContextWindows_x86.cpp --------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "lldb/lldb-private-types.h" #include "lldb/Core/Error.h" #include "lldb/Core/RegisterValue.h" #include "lldb/Host/windows/HostThreadWindows.h" #include "lldb/Host/windows/windows.h" #include "lldb-x86-register-enums.h" #include "ProcessWindowsLog.h" #include "RegisterContext_x86.h" #include "RegisterContextWindows_x86.h" #include "llvm/ADT/STLExtras.h" using namespace lldb; using namespace lldb_private; #define DEFINE_GPR(reg, alt) #reg, alt, 4, 0, eEncodingUint, eFormatHexUppercase #define DEFINE_GPR_BIN(reg, alt) #reg, alt, 4, 0, eEncodingUint, eFormatBinary namespace { // This enum defines the layout of the global RegisterInfo array. This is necessary because // lldb register sets are defined in terms of indices into the register array. As such, the // order of RegisterInfos defined in global registers array must match the order defined here. // When defining the register set layouts, these values can appear in an arbitrary order, and that // determines the order that register values are displayed in a dump. enum RegisterIndex { eRegisterIndexEax, eRegisterIndexEbx, eRegisterIndexEcx, eRegisterIndexEdx, eRegisterIndexEdi, eRegisterIndexEsi, eRegisterIndexEbp, eRegisterIndexEsp, eRegisterIndexEip, eRegisterIndexEflags }; // Array of all register information supported by Windows x86 RegisterInfo g_register_infos[] = { // Macro auto defines most stuff eh_frame DWARF GENERIC GDB LLDB VALUE REGS INVALIDATE REGS // ============================== ======================= =================== ========================= =================== ================= ========== =============== { DEFINE_GPR(eax, nullptr), { ehframe_eax_i386, dwarf_eax_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_eax_i386 }, nullptr, nullptr}, { DEFINE_GPR(ebx, nullptr), { ehframe_ebx_i386, dwarf_ebx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_ebx_i386 }, nullptr, nullptr}, { DEFINE_GPR(ecx, nullptr), { ehframe_ecx_i386, dwarf_ecx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_ecx_i386 }, nullptr, nullptr}, { DEFINE_GPR(edx, nullptr), { ehframe_edx_i386, dwarf_edx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_edx_i386 }, nullptr, nullptr}, { DEFINE_GPR(edi, nullptr), { ehframe_edi_i386, dwarf_edi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_edi_i386 }, nullptr, nullptr}, { DEFINE_GPR(esi, nullptr), { ehframe_esi_i386, dwarf_esi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_esi_i386 }, nullptr, nullptr}, { DEFINE_GPR(ebp, "fp"), { ehframe_ebp_i386, dwarf_ebp_i386, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM, lldb_ebp_i386 }, nullptr, nullptr}, { DEFINE_GPR(esp, "sp"), { ehframe_esp_i386, dwarf_esp_i386, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM, lldb_esp_i386 }, nullptr, nullptr}, { DEFINE_GPR(eip, "pc"), { ehframe_eip_i386, dwarf_eip_i386, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM, lldb_eip_i386 }, nullptr, nullptr}, { DEFINE_GPR_BIN(eflags, "flags"), { ehframe_eflags_i386, dwarf_eflags_i386, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM, lldb_eflags_i386}, nullptr, nullptr}, }; // Array of lldb register numbers used to define the set of all General Purpose Registers uint32_t g_gpr_reg_indices[] = { eRegisterIndexEax, eRegisterIndexEbx, eRegisterIndexEcx, eRegisterIndexEdx, eRegisterIndexEdi, eRegisterIndexEsi, eRegisterIndexEbp, eRegisterIndexEsp, eRegisterIndexEip, eRegisterIndexEflags }; RegisterSet g_register_sets[] = { {"General Purpose Registers", "gpr", llvm::array_lengthof(g_gpr_reg_indices), g_gpr_reg_indices}, }; } //------------------------------------------------------------------ // Constructors and Destructors //------------------------------------------------------------------ RegisterContextWindows_x86::RegisterContextWindows_x86(Thread &thread, uint32_t concrete_frame_idx) : RegisterContextWindows(thread, concrete_frame_idx) { } RegisterContextWindows_x86::~RegisterContextWindows_x86() { } size_t RegisterContextWindows_x86::GetRegisterCount() { return llvm::array_lengthof(g_register_infos); } const RegisterInfo * RegisterContextWindows_x86::GetRegisterInfoAtIndex(size_t reg) { return &g_register_infos[reg]; } size_t RegisterContextWindows_x86::GetRegisterSetCount() { return llvm::array_lengthof(g_register_sets); } const RegisterSet * RegisterContextWindows_x86::GetRegisterSet(size_t reg_set) { return &g_register_sets[reg_set]; } bool RegisterContextWindows_x86::ReadRegister(const RegisterInfo *reg_info, RegisterValue ®_value) { if (!CacheAllRegisterValues()) return false; uint32_t reg = reg_info->kinds[eRegisterKindLLDB]; switch (reg) { case lldb_eax_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from EAX", m_context.Eax); reg_value.SetUInt32(m_context.Eax); break; case lldb_ebx_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from EBX", m_context.Ebx); reg_value.SetUInt32(m_context.Ebx); break; case lldb_ecx_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from ECX", m_context.Ecx); reg_value.SetUInt32(m_context.Ecx); break; case lldb_edx_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from EDX", m_context.Edx); reg_value.SetUInt32(m_context.Edx); break; case lldb_edi_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from EDI", m_context.Edi); reg_value.SetUInt32(m_context.Edi); break; case lldb_esi_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from ESI", m_context.Esi); reg_value.SetUInt32(m_context.Esi); break; case lldb_ebp_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from EBP", m_context.Ebp); reg_value.SetUInt32(m_context.Ebp); break; case lldb_esp_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from ESP", m_context.Esp); reg_value.SetUInt32(m_context.Esp); break; case lldb_eip_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from EIP", m_context.Eip); reg_value.SetUInt32(m_context.Eip); break; case lldb_eflags_i386: WINLOG_IFALL(WINDOWS_LOG_REGISTERS, "Read value 0x%x from EFLAGS", m_context.EFlags); reg_value.SetUInt32(m_context.EFlags); break; default: WINWARN_IFALL(WINDOWS_LOG_REGISTERS, "Requested unknown register %u", reg); break; } return true; }