1 //===-- StoppointSite.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 LLDB_BREAKPOINT_STOPPOINTSITE_H 10 #define LLDB_BREAKPOINT_STOPPOINTSITE_H 11 12 #include "lldb/Breakpoint/StoppointHitCounter.h" 13 #include "lldb/Utility/UserID.h" 14 #include "lldb/lldb-private.h" 15 16 namespace lldb_private { 17 18 class StoppointSite { 19 public: 20 StoppointSite(lldb::break_id_t bid, lldb::addr_t m_addr, bool hardware); 21 22 StoppointSite(lldb::break_id_t bid, lldb::addr_t m_addr, 23 uint32_t byte_size, bool hardware); 24 25 virtual ~StoppointSite() = default; 26 27 virtual lldb::addr_t GetLoadAddress() const { return m_addr; } 28 29 virtual void SetLoadAddress(lldb::addr_t addr) { m_addr = addr; } 30 31 uint32_t GetByteSize() const { return m_byte_size; } 32 33 uint32_t GetHitCount() const { return m_hit_counter.GetValue(); } 34 35 void ResetHitCount() { m_hit_counter.Reset(); } 36 37 bool HardwareRequired() const { return m_is_hardware_required; } 38 39 virtual bool IsHardware() const = 0; 40 41 virtual bool ShouldStop(StoppointCallbackContext* context) = 0; 42 43 virtual void Dump(Stream* stream) const = 0; 44 45 lldb::break_id_t GetID() const { return m_id; } 46 47 protected: 48 /// Stoppoint site ID. 49 lldb::break_id_t m_id; 50 51 /// The load address of this stop point. 52 lldb::addr_t m_addr; 53 54 /// True if this point is required to use hardware (which may fail due to 55 /// the lack of resources). 56 bool m_is_hardware_required; 57 58 /// The size in bytes of stoppoint, e.g. the length of the trap opcode for 59 /// software breakpoints, or the optional length in bytes for hardware 60 /// breakpoints, or the length of the watchpoint. 61 uint32_t m_byte_size; 62 63 /// Number of times this breakpoint/watchpoint has been hit. 64 StoppointHitCounter m_hit_counter; 65 66 private: 67 StoppointSite(const StoppointSite &) = delete; 68 const StoppointSite &operator=(const StoppointSite &) = delete; 69 StoppointSite() = delete; 70 }; 71 72 } // namespace lldb_private 73 74 #endif // LLDB_BREAKPOINT_STOPPOINTSITE_H 75