]> CyberLeo.Net >> Repos - FreeBSD/FreeBSD.git/blob - contrib/llvm/tools/lldb/include/lldb/Breakpoint/StoppointLocation.h
Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
[FreeBSD/FreeBSD.git] / contrib / llvm / tools / lldb / include / lldb / Breakpoint / StoppointLocation.h
1 //===-- StoppointLocation.h -------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #ifndef liblldb_StoppointLocation_h_
10 #define liblldb_StoppointLocation_h_
11
12 #include "lldb/Utility/UserID.h"
13 #include "lldb/lldb-private.h"
14 // #include "lldb/Breakpoint/BreakpointOptions.h"
15
16 namespace lldb_private {
17
18 class StoppointLocation {
19 public:
20   // Constructors and Destructors
21   StoppointLocation(lldb::break_id_t bid, lldb::addr_t m_addr, bool hardware);
22
23   StoppointLocation(lldb::break_id_t bid, lldb::addr_t m_addr,
24                     uint32_t byte_size, bool hardware);
25
26   virtual ~StoppointLocation();
27
28   // Operators
29
30   // Methods
31   virtual lldb::addr_t GetLoadAddress() const { return m_addr; }
32
33   virtual void SetLoadAddress(lldb::addr_t addr) { m_addr = addr; }
34
35   uint32_t GetByteSize() const { return m_byte_size; }
36
37   uint32_t GetHitCount() const { return m_hit_count; }
38
39   uint32_t GetHardwareIndex() const { return m_hardware_index; }
40
41   bool HardwareRequired() const { return m_hardware; }
42
43   virtual bool IsHardware() const {
44     return m_hardware_index != LLDB_INVALID_INDEX32;
45   }
46
47   virtual bool ShouldStop(StoppointCallbackContext *context) { return true; }
48
49   virtual void Dump(Stream *stream) const {}
50
51   void SetHardwareIndex(uint32_t index) { m_hardware_index = index; }
52
53   lldb::break_id_t GetID() const { return m_loc_id; }
54
55 protected:
56   // Classes that inherit from StoppointLocation can see and modify these
57   lldb::break_id_t m_loc_id; // Stoppoint location ID
58   lldb::addr_t
59       m_addr; // The load address of this stop point. The base Stoppoint doesn't
60   // store a full Address since that's not needed for the breakpoint sites.
61   bool m_hardware; // True if this point has been is required to use hardware
62                    // (which may fail due to lack of resources)
63   uint32_t m_hardware_index; // The hardware resource index for this
64                              // breakpoint/watchpoint
65   uint32_t m_byte_size; // The size in bytes of stop location.  e.g. the length
66                         // of the trap opcode for
67   // software breakpoints, or the optional length in bytes for hardware
68   // breakpoints, or the length of the watchpoint.
69   uint32_t
70       m_hit_count; // Number of times this breakpoint/watchpoint has been hit
71
72   // If you override this, be sure to call the base class to increment the
73   // internal counter.
74   void IncrementHitCount() { ++m_hit_count; }
75
76   void DecrementHitCount();
77
78 private:
79   // For StoppointLocation only
80   DISALLOW_COPY_AND_ASSIGN(StoppointLocation);
81   StoppointLocation() = delete;
82 };
83
84 } // namespace lldb_private
85
86 #endif // liblldb_StoppointLocation_h_