diff options
Diffstat (limited to 'include/lldb/Breakpoint/Breakpoint.h')
| -rw-r--r-- | include/lldb/Breakpoint/Breakpoint.h | 58 |
1 files changed, 52 insertions, 6 deletions
diff --git a/include/lldb/Breakpoint/Breakpoint.h b/include/lldb/Breakpoint/Breakpoint.h index 883571a3ce9a..a70c2787a1ef 100644 --- a/include/lldb/Breakpoint/Breakpoint.h +++ b/include/lldb/Breakpoint/Breakpoint.h @@ -155,6 +155,23 @@ public: }; + class BreakpointPrecondition + { + public: + virtual ~BreakpointPrecondition() {} + + virtual bool + EvaluatePrecondition(StoppointCallbackContext &context); + + virtual Error + ConfigurePrecondition(Args &options); + + virtual void + DescribePrecondition(Stream &stream, lldb::DescriptionLevel level); + }; + + typedef std::shared_ptr<BreakpointPrecondition> BreakpointPreconditionSP; + //------------------------------------------------------------------ /// Destructor. /// @@ -665,6 +682,31 @@ public: } } + //------------------------------------------------------------------ + /// Set a pre-condition filter that overrides all user provided filters/callbacks etc. + /// + /// Used to define fancy breakpoints that can do dynamic hit detection without taking up the condition slot - + /// which really belongs to the user anyway... + /// + /// The Precondition should not continue the target, it should return true if the condition says to stop and + /// false otherwise. + /// + //------------------------------------------------------------------ + void + SetPrecondition(BreakpointPreconditionSP precondition_sp) + { + m_precondition_sp = precondition_sp; + } + + bool + EvaluatePrecondition (StoppointCallbackContext &context); + + BreakpointPreconditionSP + GetPrecondition() + { + return m_precondition_sp; + } + protected: friend class Target; //------------------------------------------------------------------ @@ -737,13 +779,17 @@ private: // For Breakpoint only //------------------------------------------------------------------ bool m_being_created; - bool m_hardware; // If this breakpoint is required to use a hardware breakpoint - Target &m_target; // The target that holds this breakpoint. + bool m_hardware; // If this breakpoint is required to use a hardware breakpoint + Target &m_target; // The target that holds this breakpoint. std::unordered_set<std::string> m_name_list; // If not empty, this is the name of this breakpoint (many breakpoints can share the same name.) - lldb::SearchFilterSP m_filter_sp; // The filter that constrains the breakpoint's domain. - lldb::BreakpointResolverSP m_resolver_sp; // The resolver that defines this breakpoint. - BreakpointOptions m_options; // Settable breakpoint options - BreakpointLocationList m_locations; // The list of locations currently found for this breakpoint. + lldb::SearchFilterSP m_filter_sp; // The filter that constrains the breakpoint's domain. + lldb::BreakpointResolverSP m_resolver_sp; // The resolver that defines this breakpoint. + BreakpointPreconditionSP m_precondition_sp; // The precondition is a breakpoint-level hit filter that can be used + // to skip certain breakpoint hits. For instance, exception breakpoints + // use this to limit the stop to certain exception classes, while leaving + // the condition & callback free for user specification. + BreakpointOptions m_options; // Settable breakpoint options + BreakpointLocationList m_locations; // The list of locations currently found for this breakpoint. std::string m_kind_description; bool m_resolve_indirect_symbols; uint32_t m_hit_count; // Number of times this breakpoint/watchpoint has been hit. This is kept |