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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "RegisterContextWindows_i386.h" 10 #include "RegisterContext_x86.h" 11 #include "lldb-x86-register-enums.h" 12 13 using namespace lldb_private; 14 using namespace lldb; 15 16 namespace { 17 // Declare our g_register_infos structure. 18 typedef 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 } 45 46 // clang-format off 47 static RegisterInfo g_register_infos_i386[] = { 48 // General purpose registers EH_Frame DWARF Generic Process Plugin 49 // =========================== ================== ================ ========================= ==================== 50 DEFINE_GPR(eax, nullptr, ehframe_eax_i386, dwarf_eax_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 51 DEFINE_GPR(ebx, nullptr, ehframe_ebx_i386, dwarf_ebx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 52 DEFINE_GPR(ecx, nullptr, ehframe_ecx_i386, dwarf_ecx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 53 DEFINE_GPR(edx, nullptr, ehframe_edx_i386, dwarf_edx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 54 DEFINE_GPR(edi, nullptr, ehframe_edi_i386, dwarf_edi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 55 DEFINE_GPR(esi, nullptr, ehframe_esi_i386, dwarf_esi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 56 DEFINE_GPR(ebp, "fp", ehframe_ebp_i386, dwarf_ebp_i386, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM), 57 DEFINE_GPR(esp, "sp", ehframe_esp_i386, dwarf_esp_i386, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM), 58 DEFINE_GPR(eip, "pc", ehframe_eip_i386, dwarf_eip_i386, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM), 59 DEFINE_GPR(eflags, "flags", ehframe_eflags_i386, dwarf_eflags_i386, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM), 60 DEFINE_GPR(cs, nullptr, LLDB_INVALID_REGNUM, dwarf_cs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 61 DEFINE_GPR(fs, nullptr, LLDB_INVALID_REGNUM, dwarf_fs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 62 DEFINE_GPR(gs, nullptr, LLDB_INVALID_REGNUM, dwarf_gs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 63 DEFINE_GPR(ss, nullptr, LLDB_INVALID_REGNUM, dwarf_ss_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 64 DEFINE_GPR(ds, nullptr, LLDB_INVALID_REGNUM, dwarf_ds_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 65 DEFINE_GPR(es, nullptr, LLDB_INVALID_REGNUM, dwarf_es_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), 66 }; 67 // clang-format on 68 } // namespace 69 70 RegisterContextWindows_i386::RegisterContextWindows_i386( 71 const ArchSpec &target_arch) 72 : lldb_private::RegisterInfoInterface(target_arch) { 73 assert(target_arch.GetMachine() == llvm::Triple::x86); 74 } 75 76 const RegisterInfo *RegisterContextWindows_i386::GetRegisterInfo() const { 77 return g_register_infos_i386; 78 } 79 80 uint32_t RegisterContextWindows_i386::GetRegisterCount() const { 81 return std::size(g_register_infos_i386); 82 } 83 84 uint32_t RegisterContextWindows_i386::GetUserRegisterCount() const { 85 return std::size(g_register_infos_i386); 86 } 87 88 size_t RegisterContextWindows_i386::GetGPRSize() const { return sizeof(GPR); } 89