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//===-- GDBRemoteRegisterContext.h ------------------------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_GDBREMOTEREGISTERCONTEXT_H
#define LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_GDBREMOTEREGISTERCONTEXT_H
#include <vector>
#include "lldb/Target/DynamicRegisterInfo.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/lldb-enumerations.h"
#include "lldb/lldb-private.h"
#include "GDBRemoteCommunicationClient.h"
class StringExtractor;
namespace lldb_private {
namespace process_gdb_remote {
class ThreadGDBRemote;
class ProcessGDBRemote;
class GDBRemoteDynamicRegisterInfo;
typedef std::shared_ptr<GDBRemoteDynamicRegisterInfo>
GDBRemoteDynamicRegisterInfoSP;
class GDBRemoteDynamicRegisterInfo final : public DynamicRegisterInfo {
public:
GDBRemoteDynamicRegisterInfo() : DynamicRegisterInfo() {}
~GDBRemoteDynamicRegisterInfo() override = default;
bool UpdateARM64SVERegistersInfos(uint64_t vg);
};
class GDBRemoteRegisterContext : public RegisterContext {
public:
GDBRemoteRegisterContext(ThreadGDBRemote &thread, uint32_t concrete_frame_idx,
GDBRemoteDynamicRegisterInfoSP reg_info_sp,
bool read_all_at_once, bool write_all_at_once);
~GDBRemoteRegisterContext() override;
void InvalidateAllRegisters() override;
size_t GetRegisterCount() override;
const RegisterInfo *GetRegisterInfoAtIndex(size_t reg) override;
size_t GetRegisterSetCount() override;
const RegisterSet *GetRegisterSet(size_t reg_set) override;
bool ReadRegister(const RegisterInfo *reg_info,
RegisterValue &value) override;
bool WriteRegister(const RegisterInfo *reg_info,
const RegisterValue &value) override;
bool ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;
bool WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
bool ReadAllRegisterValues(RegisterCheckpoint ®_checkpoint) override;
bool
WriteAllRegisterValues(const RegisterCheckpoint ®_checkpoint) override;
uint32_t ConvertRegisterKindToRegisterNumber(lldb::RegisterKind kind,
uint32_t num) override;
bool AArch64SVEReconfigure();
protected:
friend class ThreadGDBRemote;
bool ReadRegisterBytes(const RegisterInfo *reg_info);
bool WriteRegisterBytes(const RegisterInfo *reg_info, DataExtractor &data,
uint32_t data_offset);
bool PrivateSetRegisterValue(uint32_t reg, llvm::ArrayRef<uint8_t> data);
bool PrivateSetRegisterValue(uint32_t reg, uint64_t val);
void SetAllRegisterValid(bool b);
bool GetRegisterIsValid(uint32_t reg) const {
assert(reg < m_reg_valid.size());
if (reg < m_reg_valid.size())
return m_reg_valid[reg];
return false;
}
void SetRegisterIsValid(const RegisterInfo *reg_info, bool valid) {
if (reg_info)
return SetRegisterIsValid(reg_info->kinds[lldb::eRegisterKindLLDB],
valid);
}
void SetRegisterIsValid(uint32_t reg, bool valid) {
assert(reg < m_reg_valid.size());
if (reg < m_reg_valid.size())
m_reg_valid[reg] = valid;
}
GDBRemoteDynamicRegisterInfoSP m_reg_info_sp;
std::vector<bool> m_reg_valid;
DataExtractor m_reg_data;
bool m_read_all_at_once;
bool m_write_all_at_once;
bool m_gpacket_cached;
private:
// Helper function for ReadRegisterBytes().
bool GetPrimordialRegister(const RegisterInfo *reg_info,
GDBRemoteCommunicationClient &gdb_comm);
// Helper function for WriteRegisterBytes().
bool SetPrimordialRegister(const RegisterInfo *reg_info,
GDBRemoteCommunicationClient &gdb_comm);
GDBRemoteRegisterContext(const GDBRemoteRegisterContext &) = delete;
const GDBRemoteRegisterContext &
operator=(const GDBRemoteRegisterContext &) = delete;
};
} // namespace process_gdb_remote
} // namespace lldb_private
#endif // LLDB_SOURCE_PLUGINS_PROCESS_GDB_REMOTE_GDBREMOTEREGISTERCONTEXT_H
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