1 //===-- RegisterContextPOSIX.h --------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef liblldb_RegisterContextPOSIX_H_
11 #define liblldb_RegisterContextPOSIX_H_
15 // Other libraries and framework includes
16 #include "RegisterInfoInterface.h"
17 #include "lldb/Core/ArchSpec.h"
18 #include "lldb/Target/RegisterContext.h"
20 //------------------------------------------------------------------------------
21 /// @class POSIXBreakpointProtocol
23 /// @brief Extends RegisterClass with a few virtual operations useful on POSIX.
24 class POSIXBreakpointProtocol {
26 POSIXBreakpointProtocol() { m_watchpoints_initialized = false; }
27 virtual ~POSIXBreakpointProtocol() {}
29 /// Updates the register state of the associated thread after hitting a
30 /// breakpoint (if that make sense for the architecture). Default
31 /// implementation simply returns true for architectures which do not
32 /// require any update.
35 /// True if the operation succeeded and false otherwise.
36 virtual bool UpdateAfterBreakpoint() = 0;
38 /// Determines the index in lldb's register file given a kernel byte offset.
39 virtual unsigned GetRegisterIndexFromOffset(unsigned offset) = 0;
41 // Checks to see if a watchpoint specified by hw_index caused the inferior
43 virtual bool IsWatchpointHit(uint32_t hw_index) = 0;
45 // Resets any watchpoints that have been hit.
46 virtual bool ClearWatchpointHits() = 0;
48 // Returns the watchpoint address associated with a watchpoint hardware
50 virtual lldb::addr_t GetWatchpointAddress(uint32_t hw_index) = 0;
52 virtual bool IsWatchpointVacant(uint32_t hw_index) = 0;
54 virtual bool SetHardwareWatchpointWithIndex(lldb::addr_t addr, size_t size,
55 bool read, bool write,
56 uint32_t hw_index) = 0;
58 // From lldb_private::RegisterContext
59 virtual uint32_t NumSupportedHardwareWatchpoints() = 0;
61 // Force m_watchpoints_initialized to TRUE
62 void ForceWatchpointsInitialized() { m_watchpoints_initialized = true; }
65 bool m_watchpoints_initialized;
68 #endif // #ifndef liblldb_RegisterContextPOSIX_H_