90 lines · cpp
1//===-- RegisterContextWindows_i386.cpp -----------------------------------===//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#include "RegisterContextWindows_i386.h"10#include "RegisterContext_x86.h"11#include "lldb-x86-register-enums.h"12 13using namespace lldb_private;14using namespace lldb;15 16namespace {17// Declare our g_register_infos structure.18typedef struct _GPR {19 uint32_t eax;20 uint32_t ebx;21 uint32_t ecx;22 uint32_t edx;23 uint32_t edi;24 uint32_t esi;25 uint32_t ebp;26 uint32_t esp;27 uint32_t eip;28 uint32_t eflags;29 uint32_t cs;30 uint32_t fs;31 uint32_t gs;32 uint32_t ss;33 uint32_t ds;34 uint32_t es;35} GPR;36 37#define GPR_OFFSET(regname) (LLVM_EXTENSION offsetof(GPR, regname))38 39#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \40 { \41#reg, alt, sizeof(((GPR *)nullptr)->reg), GPR_OFFSET(reg), eEncodingUint, \42 eFormatHex, \43 {kind1, kind2, kind3, kind4, lldb_##reg##_i386 }, nullptr, nullptr, \44 nullptr, \45 }46 47// clang-format off48static RegisterInfo g_register_infos_i386[] = {49// General purpose registers EH_Frame DWARF Generic Process Plugin50// =========================== ================== ================ ========================= ====================51 DEFINE_GPR(eax, nullptr, ehframe_eax_i386, dwarf_eax_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),52 DEFINE_GPR(ebx, nullptr, ehframe_ebx_i386, dwarf_ebx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),53 DEFINE_GPR(ecx, nullptr, ehframe_ecx_i386, dwarf_ecx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),54 DEFINE_GPR(edx, nullptr, ehframe_edx_i386, dwarf_edx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),55 DEFINE_GPR(edi, nullptr, ehframe_edi_i386, dwarf_edi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),56 DEFINE_GPR(esi, nullptr, ehframe_esi_i386, dwarf_esi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),57 DEFINE_GPR(ebp, "fp", ehframe_ebp_i386, dwarf_ebp_i386, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM),58 DEFINE_GPR(esp, "sp", ehframe_esp_i386, dwarf_esp_i386, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),59 DEFINE_GPR(eip, "pc", ehframe_eip_i386, dwarf_eip_i386, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),60 DEFINE_GPR(eflags, "flags", ehframe_eflags_i386, dwarf_eflags_i386, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),61 DEFINE_GPR(cs, nullptr, LLDB_INVALID_REGNUM, dwarf_cs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),62 DEFINE_GPR(fs, nullptr, LLDB_INVALID_REGNUM, dwarf_fs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),63 DEFINE_GPR(gs, nullptr, LLDB_INVALID_REGNUM, dwarf_gs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),64 DEFINE_GPR(ss, nullptr, LLDB_INVALID_REGNUM, dwarf_ss_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),65 DEFINE_GPR(ds, nullptr, LLDB_INVALID_REGNUM, dwarf_ds_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),66 DEFINE_GPR(es, nullptr, LLDB_INVALID_REGNUM, dwarf_es_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),67};68// clang-format on69} // namespace70 71RegisterContextWindows_i386::RegisterContextWindows_i386(72 const ArchSpec &target_arch)73 : lldb_private::RegisterInfoInterface(target_arch) {74 assert(target_arch.GetMachine() == llvm::Triple::x86);75}76 77const RegisterInfo *RegisterContextWindows_i386::GetRegisterInfo() const {78 return g_register_infos_i386;79}80 81uint32_t RegisterContextWindows_i386::GetRegisterCount() const {82 return std::size(g_register_infos_i386);83}84 85uint32_t RegisterContextWindows_i386::GetUserRegisterCount() const {86 return std::size(g_register_infos_i386);87}88 89size_t RegisterContextWindows_i386::GetGPRSize() const { return sizeof(GPR); }90