RegisterContextWindows_i386.cpp
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//===-- RegisterContextWindows_i386.cpp -------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "RegisterContextWindows_i386.h"
#include "RegisterContext_x86.h"
#include "lldb-x86-register-enums.h"
using namespace lldb_private;
using namespace lldb;
namespace {
// Declare our g_register_infos structure.
typedef struct _GPR {
uint32_t eax;
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t edi;
uint32_t esi;
uint32_t ebp;
uint32_t esp;
uint32_t eip;
uint32_t eflags;
uint32_t cs;
uint32_t fs;
uint32_t gs;
uint32_t ss;
uint32_t ds;
uint32_t es;
} GPR;
#define GPR_OFFSET(regname) (LLVM_EXTENSION offsetof(GPR, regname))
#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \
{ \
#reg, alt, sizeof(((GPR *)nullptr)->reg), GPR_OFFSET(reg), eEncodingUint, \
eFormatHex, \
{kind1, kind2, kind3, kind4, lldb_##reg##_i386 }, nullptr, nullptr, \
nullptr, 0 \
}
// clang-format off
static RegisterInfo g_register_infos_i386[] = {
// General purpose registers EH_Frame DWARF Generic Process Plugin
// =========================== ================== ================ ========================= ====================
DEFINE_GPR(eax, nullptr, ehframe_eax_i386, dwarf_eax_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ebx, nullptr, ehframe_ebx_i386, dwarf_ebx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ecx, nullptr, ehframe_ecx_i386, dwarf_ecx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(edx, nullptr, ehframe_edx_i386, dwarf_edx_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(edi, nullptr, ehframe_edi_i386, dwarf_edi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(esi, nullptr, ehframe_esi_i386, dwarf_esi_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ebp, "fp", ehframe_ebp_i386, dwarf_ebp_i386, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM),
DEFINE_GPR(esp, "sp", ehframe_esp_i386, dwarf_esp_i386, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM),
DEFINE_GPR(eip, "pc", ehframe_eip_i386, dwarf_eip_i386, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
DEFINE_GPR(eflags, "flags", ehframe_eflags_i386, dwarf_eflags_i386, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM),
DEFINE_GPR(cs, nullptr, LLDB_INVALID_REGNUM, dwarf_cs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(fs, nullptr, LLDB_INVALID_REGNUM, dwarf_fs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(gs, nullptr, LLDB_INVALID_REGNUM, dwarf_gs_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ss, nullptr, LLDB_INVALID_REGNUM, dwarf_ss_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(ds, nullptr, LLDB_INVALID_REGNUM, dwarf_ds_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
DEFINE_GPR(es, nullptr, LLDB_INVALID_REGNUM, dwarf_es_i386, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM),
};
// clang-format on
} // namespace
RegisterContextWindows_i386::RegisterContextWindows_i386(
const ArchSpec &target_arch)
: lldb_private::RegisterInfoInterface(target_arch) {
assert(target_arch.GetMachine() == llvm::Triple::x86);
}
const RegisterInfo *RegisterContextWindows_i386::GetRegisterInfo() const {
return g_register_infos_i386;
}
uint32_t RegisterContextWindows_i386::GetRegisterCount() const {
return llvm::array_lengthof(g_register_infos_i386);
}
uint32_t RegisterContextWindows_i386::GetUserRegisterCount() const {
return llvm::array_lengthof(g_register_infos_i386);
}
size_t RegisterContextWindows_i386::GetGPRSize() const { return sizeof(GPR); }