NativeRegisterContextLinux.h
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//===-- NativeRegisterContextLinux.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_NativeRegisterContextLinux_h
#define lldb_NativeRegisterContextLinux_h
#include "Plugins/Process/Utility/NativeRegisterContextRegisterInfo.h"
#include "lldb/Host/common/NativeThreadProtocol.h"
namespace lldb_private {
namespace process_linux {
class NativeRegisterContextLinux : public NativeRegisterContextRegisterInfo {
public:
NativeRegisterContextLinux(NativeThreadProtocol &native_thread,
RegisterInfoInterface *reg_info_interface_p);
// This function is implemented in the NativeRegisterContextLinux_* subclasses
// to create a new instance of the host specific NativeRegisterContextLinux.
// The implementations can't collide as only one NativeRegisterContextLinux_*
// variant should be compiled into the final executable.
static std::unique_ptr<NativeRegisterContextLinux>
CreateHostNativeRegisterContextLinux(const ArchSpec &target_arch,
NativeThreadProtocol &native_thread);
// Invalidates cached values in register context data structures
virtual void InvalidateAllRegisters(){}
protected:
lldb::ByteOrder GetByteOrder() const;
virtual Status ReadRegisterRaw(uint32_t reg_index, RegisterValue ®_value);
virtual Status WriteRegisterRaw(uint32_t reg_index,
const RegisterValue ®_value);
virtual Status ReadRegisterSet(void *buf, size_t buf_size,
unsigned int regset);
virtual Status WriteRegisterSet(void *buf, size_t buf_size,
unsigned int regset);
virtual Status ReadGPR();
virtual Status WriteGPR();
virtual Status ReadFPR();
virtual Status WriteFPR();
virtual void *GetGPRBuffer() = 0;
virtual size_t GetGPRSize() {
return GetRegisterInfoInterface().GetGPRSize();
}
virtual void *GetFPRBuffer() = 0;
virtual size_t GetFPRSize() = 0;
virtual uint32_t GetPtraceOffset(uint32_t reg_index) {
return GetRegisterInfoAtIndex(reg_index)->byte_offset;
}
// The Do*** functions are executed on the privileged thread and can perform
// ptrace
// operations directly.
virtual Status DoReadRegisterValue(uint32_t offset, const char *reg_name,
uint32_t size, RegisterValue &value);
virtual Status DoWriteRegisterValue(uint32_t offset, const char *reg_name,
const RegisterValue &value);
};
} // namespace process_linux
} // namespace lldb_private
#endif // #ifndef lldb_NativeRegisterContextLinux_h