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_
13 #include "Plugins/Process/Utility/RegisterInfoInterface.h"
14 #include "lldb/Target/RegisterContext.h"
15 #include "lldb/Utility/ArchSpec.h"
17 //------------------------------------------------------------------------------
18 /// @class POSIXBreakpointProtocol
20 /// Extends RegisterClass with a few virtual operations useful on POSIX.
21 class POSIXBreakpointProtocol {
23 POSIXBreakpointProtocol() { m_watchpoints_initialized = false; }
24 virtual ~POSIXBreakpointProtocol() {}
26 /// Updates the register state of the associated thread after hitting a
27 /// breakpoint (if that make sense for the architecture). Default
28 /// implementation simply returns true for architectures which do not
29 /// require any update.
32 /// True if the operation succeeded and false otherwise.
33 virtual bool UpdateAfterBreakpoint() = 0;
35 /// Determines the index in lldb's register file given a kernel byte offset.
36 virtual unsigned GetRegisterIndexFromOffset(unsigned offset) = 0;
38 // Checks to see if a watchpoint specified by hw_index caused the inferior
40 virtual bool IsWatchpointHit(uint32_t hw_index) = 0;
42 // Resets any watchpoints that have been hit.
43 virtual bool ClearWatchpointHits() = 0;
45 // Returns the watchpoint address associated with a watchpoint hardware
47 virtual lldb::addr_t GetWatchpointAddress(uint32_t hw_index) = 0;
49 virtual bool IsWatchpointVacant(uint32_t hw_index) = 0;
51 virtual bool SetHardwareWatchpointWithIndex(lldb::addr_t addr, size_t size,
52 bool read, bool write,
53 uint32_t hw_index) = 0;
55 // From lldb_private::RegisterContext
56 virtual uint32_t NumSupportedHardwareWatchpoints() = 0;
58 // Force m_watchpoints_initialized to TRUE
59 void ForceWatchpointsInitialized() { m_watchpoints_initialized = true; }
62 bool m_watchpoints_initialized;
65 #endif // #ifndef liblldb_RegisterContextPOSIX_H_