| //===-- AppleThreadPlanStepThroughObjCTrampoline.h --------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLETHREADPLANSTEPTHROUGHOBJCTRAMPOLINE_H |
| #define LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLETHREADPLANSTEPTHROUGHOBJCTRAMPOLINE_H |
| |
| #include "AppleObjCTrampolineHandler.h" |
| #include "lldb/Core/Value.h" |
| #include "lldb/Target/ThreadPlan.h" |
| #include "lldb/Target/ThreadPlanStepInRange.h" |
| #include "lldb/Target/ThreadPlanStepOut.h" |
| #include "lldb/Target/ThreadPlanShouldStopHere.h" |
| #include "lldb/lldb-enumerations.h" |
| #include "lldb/lldb-types.h" |
| |
| namespace lldb_private { |
| |
| class AppleThreadPlanStepThroughObjCTrampoline : public ThreadPlan { |
| public: |
| AppleThreadPlanStepThroughObjCTrampoline( |
| Thread &thread, AppleObjCTrampolineHandler &trampoline_handler, |
| ValueList &values, lldb::addr_t isa_addr, lldb::addr_t sel_addr); |
| |
| ~AppleThreadPlanStepThroughObjCTrampoline() override; |
| |
| static bool PreResumeInitializeFunctionCaller(void *myself); |
| |
| void GetDescription(Stream *s, lldb::DescriptionLevel level) override; |
| |
| bool ValidatePlan(Stream *error) override; |
| |
| lldb::StateType GetPlanRunState() override; |
| |
| bool ShouldStop(Event *event_ptr) override; |
| |
| // The step through code might have to fill in the cache, so it is not safe |
| // to run only one thread. |
| bool StopOthers() override { return false; } |
| |
| // The base class MischiefManaged does some cleanup - so you have to call it |
| // in your MischiefManaged derived class. |
| bool MischiefManaged() override; |
| |
| void DidPush() override; |
| |
| bool WillStop() override; |
| |
| protected: |
| bool DoPlanExplainsStop(Event *event_ptr) override; |
| |
| private: |
| bool InitializeFunctionCaller(); |
| |
| AppleObjCTrampolineHandler &m_trampoline_handler; /// The handler itself. |
| lldb::addr_t m_args_addr; /// Stores the address for our step through function |
| /// result structure. |
| ValueList m_input_values; |
| lldb::addr_t m_isa_addr; /// isa_addr and sel_addr are the keys we will use to |
| /// cache the implementation. |
| lldb::addr_t m_sel_addr; |
| lldb::ThreadPlanSP m_func_sp; /// This is the function call plan. We fill it |
| /// at start, then set it to NULL when this plan |
| /// is done. That way we know to go on to: |
| lldb::ThreadPlanSP m_run_to_sp; /// The plan that runs to the target. |
| FunctionCaller *m_impl_function; /// This is a pointer to a impl function that |
| /// is owned by the client that pushes this |
| /// plan. |
| }; |
| |
| class AppleThreadPlanStepThroughDirectDispatch: public ThreadPlanStepOut { |
| public: |
| AppleThreadPlanStepThroughDirectDispatch(Thread &thread, |
| AppleObjCTrampolineHandler &handler, |
| llvm::StringRef dispatch_func_name); |
| |
| ~AppleThreadPlanStepThroughDirectDispatch() override; |
| |
| void GetDescription(Stream *s, lldb::DescriptionLevel level) override; |
| |
| bool ShouldStop(Event *event_ptr) override; |
| |
| bool StopOthers() override { return false; } |
| |
| bool MischiefManaged() override; |
| |
| bool DoWillResume(lldb::StateType resume_state, bool current_plan) override; |
| |
| void SetFlagsToDefault() override { |
| GetFlags().Set(ThreadPlanStepInRange::GetDefaultFlagsValue()); |
| } |
| |
| protected: |
| bool DoPlanExplainsStop(Event *event_ptr) override; |
| |
| AppleObjCTrampolineHandler &m_trampoline_handler; |
| std::string m_dispatch_func_name; /// Which dispatch function we're stepping |
| /// through. |
| lldb::ThreadPlanSP m_objc_step_through_sp; /// When we hit an objc_msgSend, |
| /// we'll use this plan to get to |
| /// its target. |
| std::vector<lldb::BreakpointSP> m_msgSend_bkpts; /// Breakpoints on the objc |
| /// dispatch functions. |
| bool m_at_msg_send; /// Are we currently handling an msg_send |
| |
| }; |
| |
| } // namespace lldb_private |
| |
| #endif // LLDB_SOURCE_PLUGINS_LANGUAGERUNTIME_OBJC_APPLEOBJCRUNTIME_APPLETHREADPLANSTEPTHROUGHOBJCTRAMPOLINE_H |