diff options
Diffstat (limited to 'lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h')
| -rw-r--r-- | lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h | 251 |
1 files changed, 114 insertions, 137 deletions
diff --git a/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h b/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h index 1049e543256..1e8333fb099 100644 --- a/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h +++ b/lldb/source/Plugins/DynamicLoader/POSIX-DYLD/DynamicLoaderPOSIXDYLD.h @@ -21,162 +21,139 @@ class AuxVector; -class DynamicLoaderPOSIXDYLD : public lldb_private::DynamicLoader -{ +class DynamicLoaderPOSIXDYLD : public lldb_private::DynamicLoader { public: - DynamicLoaderPOSIXDYLD(lldb_private::Process *process); + DynamicLoaderPOSIXDYLD(lldb_private::Process *process); - ~DynamicLoaderPOSIXDYLD() override; + ~DynamicLoaderPOSIXDYLD() override; - static void - Initialize(); + static void Initialize(); - static void - Terminate(); + static void Terminate(); - static lldb_private::ConstString - GetPluginNameStatic(); + static lldb_private::ConstString GetPluginNameStatic(); - static const char * - GetPluginDescriptionStatic(); + static const char *GetPluginDescriptionStatic(); - static lldb_private::DynamicLoader * - CreateInstance(lldb_private::Process *process, bool force); + static lldb_private::DynamicLoader * + CreateInstance(lldb_private::Process *process, bool force); - //------------------------------------------------------------------ - // DynamicLoader protocol - //------------------------------------------------------------------ + //------------------------------------------------------------------ + // DynamicLoader protocol + //------------------------------------------------------------------ - void - DidAttach() override; + void DidAttach() override; - void - DidLaunch() override; + void DidLaunch() override; - lldb::ThreadPlanSP - GetStepThroughTrampolinePlan(lldb_private::Thread &thread, - bool stop_others) override; + lldb::ThreadPlanSP GetStepThroughTrampolinePlan(lldb_private::Thread &thread, + bool stop_others) override; - lldb_private::Error - CanLoadImage() override; + lldb_private::Error CanLoadImage() override; - lldb::addr_t - GetThreadLocalData(const lldb::ModuleSP module, const lldb::ThreadSP thread, lldb::addr_t tls_file_addr) override; + lldb::addr_t GetThreadLocalData(const lldb::ModuleSP module, + const lldb::ThreadSP thread, + lldb::addr_t tls_file_addr) override; - //------------------------------------------------------------------ - // PluginInterface protocol - //------------------------------------------------------------------ - lldb_private::ConstString - GetPluginName() override; + //------------------------------------------------------------------ + // PluginInterface protocol + //------------------------------------------------------------------ + lldb_private::ConstString GetPluginName() override; - uint32_t - GetPluginVersion() override; + uint32_t GetPluginVersion() override; protected: - /// Runtime linker rendezvous structure. - DYLDRendezvous m_rendezvous; - - /// Virtual load address of the inferior process. - lldb::addr_t m_load_offset; - - /// Virtual entry address of the inferior process. - lldb::addr_t m_entry_point; - - /// Auxiliary vector of the inferior process. - std::unique_ptr<AuxVector> m_auxv; - - /// Rendezvous breakpoint. - lldb::break_id_t m_dyld_bid; - - /// Contains AT_SYSINFO_EHDR, which means a vDSO has been - /// mapped to the address space - lldb::addr_t m_vdso_base; - - /// Loaded module list. (link map for each module) - std::map<lldb::ModuleWP, lldb::addr_t, std::owner_less<lldb::ModuleWP>> m_loaded_modules; - - /// Enables a breakpoint on a function called by the runtime - /// linker each time a module is loaded or unloaded. - virtual void - SetRendezvousBreakpoint(); - - /// Callback routine which updates the current list of loaded modules based - /// on the information supplied by the runtime linker. - static bool - RendezvousBreakpointHit(void *baton, - lldb_private::StoppointCallbackContext *context, - lldb::user_id_t break_id, - lldb::user_id_t break_loc_id); - - /// Helper method for RendezvousBreakpointHit. Updates LLDB's current set - /// of loaded modules. - void - RefreshModules(); - - /// Updates the load address of every allocatable section in @p module. - /// - /// @param module The module to traverse. - /// - /// @param link_map_addr The virtual address of the link map for the @p module. - /// - /// @param base_addr The virtual base address @p module is loaded at. - void - UpdateLoadedSections(lldb::ModuleSP module, - lldb::addr_t link_map_addr, - lldb::addr_t base_addr, - bool base_addr_is_offset) override; - - /// Removes the loaded sections from the target in @p module. - /// - /// @param module The module to traverse. - void - UnloadSections(const lldb::ModuleSP module) override; - - /// Resolves the entry point for the current inferior process and sets a - /// breakpoint at that address. - void - ProbeEntry(); - - /// Callback routine invoked when we hit the breakpoint on process entry. - /// - /// This routine is responsible for resolving the load addresses of all - /// dependent modules required by the inferior and setting up the rendezvous - /// breakpoint. - static bool - EntryBreakpointHit(void *baton, - lldb_private::StoppointCallbackContext *context, - lldb::user_id_t break_id, - lldb::user_id_t break_loc_id); - - /// Helper for the entry breakpoint callback. Resolves the load addresses - /// of all dependent modules. - virtual void - LoadAllCurrentModules(); - - /// Computes a value for m_load_offset returning the computed address on - /// success and LLDB_INVALID_ADDRESS on failure. - lldb::addr_t - ComputeLoadOffset(); - - /// Computes a value for m_entry_point returning the computed address on - /// success and LLDB_INVALID_ADDRESS on failure. - lldb::addr_t - GetEntryPoint(); - - /// Evaluate if Aux vectors contain vDSO information - /// in case they do, read and assign the address to m_vdso_base - void - EvalVdsoStatus(); - - /// Loads Module from inferior process. - void - ResolveExecutableModule(lldb::ModuleSP &module_sp); - - bool - AlwaysRelyOnEHUnwindInfo(lldb_private::SymbolContext &sym_ctx) override; + /// Runtime linker rendezvous structure. + DYLDRendezvous m_rendezvous; + + /// Virtual load address of the inferior process. + lldb::addr_t m_load_offset; + + /// Virtual entry address of the inferior process. + lldb::addr_t m_entry_point; + + /// Auxiliary vector of the inferior process. + std::unique_ptr<AuxVector> m_auxv; + + /// Rendezvous breakpoint. + lldb::break_id_t m_dyld_bid; + + /// Contains AT_SYSINFO_EHDR, which means a vDSO has been + /// mapped to the address space + lldb::addr_t m_vdso_base; + + /// Loaded module list. (link map for each module) + std::map<lldb::ModuleWP, lldb::addr_t, std::owner_less<lldb::ModuleWP>> + m_loaded_modules; + + /// Enables a breakpoint on a function called by the runtime + /// linker each time a module is loaded or unloaded. + virtual void SetRendezvousBreakpoint(); + + /// Callback routine which updates the current list of loaded modules based + /// on the information supplied by the runtime linker. + static bool RendezvousBreakpointHit( + void *baton, lldb_private::StoppointCallbackContext *context, + lldb::user_id_t break_id, lldb::user_id_t break_loc_id); + + /// Helper method for RendezvousBreakpointHit. Updates LLDB's current set + /// of loaded modules. + void RefreshModules(); + + /// Updates the load address of every allocatable section in @p module. + /// + /// @param module The module to traverse. + /// + /// @param link_map_addr The virtual address of the link map for the @p + /// module. + /// + /// @param base_addr The virtual base address @p module is loaded at. + void UpdateLoadedSections(lldb::ModuleSP module, lldb::addr_t link_map_addr, + lldb::addr_t base_addr, + bool base_addr_is_offset) override; + + /// Removes the loaded sections from the target in @p module. + /// + /// @param module The module to traverse. + void UnloadSections(const lldb::ModuleSP module) override; + + /// Resolves the entry point for the current inferior process and sets a + /// breakpoint at that address. + void ProbeEntry(); + + /// Callback routine invoked when we hit the breakpoint on process entry. + /// + /// This routine is responsible for resolving the load addresses of all + /// dependent modules required by the inferior and setting up the rendezvous + /// breakpoint. + static bool + EntryBreakpointHit(void *baton, + lldb_private::StoppointCallbackContext *context, + lldb::user_id_t break_id, lldb::user_id_t break_loc_id); + + /// Helper for the entry breakpoint callback. Resolves the load addresses + /// of all dependent modules. + virtual void LoadAllCurrentModules(); + + /// Computes a value for m_load_offset returning the computed address on + /// success and LLDB_INVALID_ADDRESS on failure. + lldb::addr_t ComputeLoadOffset(); + + /// Computes a value for m_entry_point returning the computed address on + /// success and LLDB_INVALID_ADDRESS on failure. + lldb::addr_t GetEntryPoint(); + + /// Evaluate if Aux vectors contain vDSO information + /// in case they do, read and assign the address to m_vdso_base + void EvalVdsoStatus(); + + /// Loads Module from inferior process. + void ResolveExecutableModule(lldb::ModuleSP &module_sp); + + bool AlwaysRelyOnEHUnwindInfo(lldb_private::SymbolContext &sym_ctx) override; private: - DISALLOW_COPY_AND_ASSIGN(DynamicLoaderPOSIXDYLD); + DISALLOW_COPY_AND_ASSIGN(DynamicLoaderPOSIXDYLD); }; #endif // liblldb_DynamicLoaderPOSIXDYLD_h_ |
