llvm/lldb/source/Plugins/Process/Utility/NativeProcessSoftwareSingleStep.cpp

//===-- NativeProcessSoftwareSingleStep.cpp -------------------------------===//
//
// 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 "NativeProcessSoftwareSingleStep.h"

#include "lldb/Core/EmulateInstruction.h"
#include "lldb/Host/common/NativeRegisterContext.h"
#include "lldb/Utility/RegisterValue.h"

#include <unordered_map>

usingnamespacelldb;
usingnamespacelldb_private;

namespace {

struct EmulatorBaton { … };

} // anonymous namespace

static size_t ReadMemoryCallback(EmulateInstruction *instruction, void *baton,
                                 const EmulateInstruction::Context &context,
                                 lldb::addr_t addr, void *dst, size_t length) { … }

static bool ReadRegisterCallback(EmulateInstruction *instruction, void *baton,
                                 const RegisterInfo *reg_info,
                                 RegisterValue &reg_value) { … }

static bool WriteRegisterCallback(EmulateInstruction *instruction, void *baton,
                                  const EmulateInstruction::Context &context,
                                  const RegisterInfo *reg_info,
                                  const RegisterValue &reg_value) { … }

static size_t WriteMemoryCallback(EmulateInstruction *instruction, void *baton,
                                  const EmulateInstruction::Context &context,
                                  lldb::addr_t addr, const void *dst,
                                  size_t length) { … }

static lldb::addr_t ReadFlags(NativeRegisterContext &regsiter_context) { … }

static int GetSoftwareBreakpointSize(const ArchSpec &arch,
                                     lldb::addr_t next_flags) { … }

static Status SetSoftwareBreakpointOnPC(const ArchSpec &arch, lldb::addr_t pc,
                                        lldb::addr_t next_flags,
                                        NativeProcessProtocol &process) { … }

Status NativeProcessSoftwareSingleStep::SetupSoftwareSingleStepping(
    NativeThreadProtocol &thread) { … }