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//===-- NativeRegisterContext.h ---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_NativeRegisterContext_h_
#define liblldb_NativeRegisterContext_h_
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-private.h"
#include "lldb/Host/common/NativeWatchpointList.h"
namespace lldb_private {
class NativeThreadProtocol;
class NativeRegisterContext:
public std::enable_shared_from_this<NativeRegisterContext>
{
public:
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
NativeRegisterContext (NativeThreadProtocol &thread, uint32_t concrete_frame_idx);
virtual
~NativeRegisterContext ();
// void
// InvalidateIfNeeded (bool force);
//------------------------------------------------------------------
// Subclasses must override these functions
//------------------------------------------------------------------
// virtual void
// InvalidateAllRegisters () = 0;
virtual uint32_t
GetRegisterCount () const = 0;
virtual uint32_t
GetUserRegisterCount () const = 0;
virtual const RegisterInfo *
GetRegisterInfoAtIndex (uint32_t reg) const = 0;
const char *
GetRegisterSetNameForRegisterAtIndex (uint32_t reg_index) const;
virtual uint32_t
GetRegisterSetCount () const = 0;
virtual const RegisterSet *
GetRegisterSet (uint32_t set_index) const = 0;
virtual Error
ReadRegister (const RegisterInfo *reg_info, RegisterValue ®_value) = 0;
virtual Error
WriteRegister (const RegisterInfo *reg_info, const RegisterValue ®_value) = 0;
virtual Error
ReadAllRegisterValues (lldb::DataBufferSP &data_sp) = 0;
virtual Error
WriteAllRegisterValues (const lldb::DataBufferSP &data_sp) = 0;
uint32_t
ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num) const;
//------------------------------------------------------------------
// Subclasses can override these functions if desired
//------------------------------------------------------------------
virtual uint32_t
NumSupportedHardwareBreakpoints ();
virtual uint32_t
SetHardwareBreakpoint (lldb::addr_t addr, size_t size);
virtual bool
ClearHardwareBreakpoint (uint32_t hw_idx);
virtual uint32_t
NumSupportedHardwareWatchpoints ();
virtual uint32_t
SetHardwareWatchpoint (lldb::addr_t addr, size_t size, uint32_t watch_flags);
virtual bool
ClearHardwareWatchpoint (uint32_t hw_index);
virtual Error
ClearAllHardwareWatchpoints ();
virtual Error
IsWatchpointHit(uint32_t wp_index, bool &is_hit);
virtual Error
GetWatchpointHitIndex(uint32_t &wp_index, lldb::addr_t trap_addr);
virtual Error
IsWatchpointVacant (uint32_t wp_index, bool &is_vacant);
virtual lldb::addr_t
GetWatchpointAddress (uint32_t wp_index);
// MIPS Linux kernel returns a masked address (last 3bits are masked)
// when a HW watchpoint is hit. However user may not have set a watchpoint
// on this address. This function emulates the instruction at PC and
// finds the base address used in the load/store instruction. This gives the
// exact address used to read/write the variable being watched.
// For example:
// 'n' is at 0x120010d00 and 'm' is 0x120010d04. When a watchpoint is set at 'm',
// then watch exception is generated even when 'n' is read/written. This function
// returns address of 'n' so that client can check whether a watchpoint is set
// on this address or not.
virtual lldb::addr_t
GetWatchpointHitAddress (uint32_t wp_index);
virtual bool
HardwareSingleStep (bool enable);
virtual Error
ReadRegisterValueFromMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr, size_t src_len, RegisterValue ®_value);
virtual Error
WriteRegisterValueToMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr, size_t dst_len, const RegisterValue ®_value);
//------------------------------------------------------------------
// Subclasses should not override these
//------------------------------------------------------------------
virtual lldb::tid_t
GetThreadID() const;
virtual NativeThreadProtocol &
GetThread ()
{
return m_thread;
}
const RegisterInfo *
GetRegisterInfoByName (const char *reg_name, uint32_t start_idx = 0);
const RegisterInfo *
GetRegisterInfo (uint32_t reg_kind, uint32_t reg_num);
lldb::addr_t
GetPC (lldb::addr_t fail_value = LLDB_INVALID_ADDRESS);
virtual lldb::addr_t
GetPCfromBreakpointLocation (lldb::addr_t fail_value = LLDB_INVALID_ADDRESS);
Error
SetPC (lldb::addr_t pc);
lldb::addr_t
GetSP (lldb::addr_t fail_value = LLDB_INVALID_ADDRESS);
Error
SetSP (lldb::addr_t sp);
lldb::addr_t
GetFP (lldb::addr_t fail_value = LLDB_INVALID_ADDRESS);
Error
SetFP (lldb::addr_t fp);
const char *
GetRegisterName (uint32_t reg);
lldb::addr_t
GetReturnAddress (lldb::addr_t fail_value = LLDB_INVALID_ADDRESS);
lldb::addr_t
GetFlags (lldb::addr_t fail_value = 0);
lldb::addr_t
ReadRegisterAsUnsigned (uint32_t reg, lldb::addr_t fail_value);
lldb::addr_t
ReadRegisterAsUnsigned (const RegisterInfo *reg_info, lldb::addr_t fail_value);
Error
WriteRegisterFromUnsigned (uint32_t reg, uint64_t uval);
Error
WriteRegisterFromUnsigned (const RegisterInfo *reg_info, uint64_t uval);
// uint32_t
// GetStopID () const
// {
// return m_stop_id;
// }
// void
// SetStopID (uint32_t stop_id)
// {
// m_stop_id = stop_id;
// }
protected:
//------------------------------------------------------------------
// Classes that inherit from RegisterContext can see and modify these
//------------------------------------------------------------------
NativeThreadProtocol &m_thread; // The thread that this register context belongs to.
uint32_t m_concrete_frame_idx; // The concrete frame index for this register context
// uint32_t m_stop_id; // The stop ID that any data in this context is valid for
private:
//------------------------------------------------------------------
// For RegisterContext only
//------------------------------------------------------------------
DISALLOW_COPY_AND_ASSIGN (NativeRegisterContext);
};
} // namespace lldb_private
#endif // liblldb_NativeRegisterContext_h_
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