LLDB mainline
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#include <DynamicLoaderMacOS.h>
Public Member Functions | |
DynamicLoaderMacOS (lldb_private::Process *process) | |
~DynamicLoaderMacOS () override | |
bool | ProcessDidExec () override |
Called after attaching a process. | |
lldb_private::Status | CanLoadImage () override |
Ask if it is ok to try and load or unload an shared library (image). | |
bool | GetSharedCacheInformation (lldb::addr_t &base_address, lldb_private::UUID &uuid, lldb_private::LazyBool &using_shared_cache, lldb_private::LazyBool &private_shared_cache) override |
Get information about the shared cache for a process, if possible. | |
llvm::StringRef | GetPluginName () override |
Public Member Functions inherited from lldb_private::DynamicLoaderDarwin | |
DynamicLoaderDarwin (lldb_private::Process *process) | |
~DynamicLoaderDarwin () override | |
void | DidAttach () override |
Called after attaching a process. | |
void | DidLaunch () override |
Called after attaching a process. | |
lldb::ThreadPlanSP | GetStepThroughTrampolinePlan (lldb_private::Thread &thread, bool stop_others) override |
Provides a plan to step through the dynamic loader trampoline for the current state of thread. | |
void | FindEquivalentSymbols (lldb_private::Symbol *original_symbol, lldb_private::ModuleList &module_list, lldb_private::SymbolContextList &equivalent_symbols) override |
Some dynamic loaders provide features where there are a group of symbols "equivalent to" a given symbol one of which will be chosen when the symbol is bound. | |
lldb::addr_t | GetThreadLocalData (const lldb::ModuleSP module, const lldb::ThreadSP thread, lldb::addr_t tls_file_addr) override |
Retrieves the per-module TLS block for a given thread. | |
bool | AlwaysRelyOnEHUnwindInfo (lldb_private::SymbolContext &sym_ctx) override |
Ask if the eh_frame information for the given SymbolContext should be relied on even when it's the first frame in a stack unwind. | |
virtual void | DoInitialImageFetch ()=0 |
virtual bool | NeedToDoInitialImageFetch ()=0 |
std::optional< lldb_private::Address > | GetStartAddress () override |
Return the start address in the dynamic loader module. | |
Public Member Functions inherited from lldb_private::DynamicLoader | |
DynamicLoader (Process *process) | |
Construct with a process. | |
virtual void | DidAttach ()=0 |
Called after attaching a process. | |
virtual void | DidLaunch ()=0 |
Called after launching a process. | |
virtual bool | ProcessDidExec () |
Helper function that can be used to detect when a process has called exec and is now a new and different process. | |
bool | GetStopWhenImagesChange () const |
Get whether the process should stop when images change. | |
void | SetStopWhenImagesChange (bool stop) |
Set whether the process should stop when images change. | |
virtual lldb::ThreadPlanSP | GetStepThroughTrampolinePlan (Thread &thread, bool stop_others)=0 |
Provides a plan to step through the dynamic loader trampoline for the current state of thread. | |
virtual void | FindEquivalentSymbols (Symbol *original_symbol, ModuleList &module_list, SymbolContextList &equivalent_symbols) |
Some dynamic loaders provide features where there are a group of symbols "equivalent to" a given symbol one of which will be chosen when the symbol is bound. | |
virtual Status | CanLoadImage ()=0 |
Ask if it is ok to try and load or unload an shared library (image). | |
virtual bool | AlwaysRelyOnEHUnwindInfo (SymbolContext &sym_ctx) |
Ask if the eh_frame information for the given SymbolContext should be relied on even when it's the first frame in a stack unwind. | |
virtual lldb::addr_t | GetThreadLocalData (const lldb::ModuleSP module, const lldb::ThreadSP thread, lldb::addr_t tls_file_addr) |
Retrieves the per-module TLS block for a given thread. | |
virtual lldb::ModuleSP | LoadModuleAtAddress (const lldb_private::FileSpec &file, lldb::addr_t link_map_addr, lldb::addr_t base_addr, bool base_addr_is_offset) |
Locates or creates a module given by file and updates/loads the resulting module at the virtual base address base_addr . | |
virtual bool | GetSharedCacheInformation (lldb::addr_t &base_address, UUID &uuid, LazyBool &using_shared_cache, LazyBool &private_shared_cache) |
Get information about the shared cache for a process, if possible. | |
virtual bool | IsFullyInitialized () |
Return whether the dynamic loader is fully initialized and it's safe to call its APIs. | |
virtual std::optional< lldb_private::Address > | GetStartAddress () |
Return the start address in the dynamic loader module. | |
virtual void | CalculateDynamicSaveCoreRanges (lldb_private::Process &process, std::vector< lldb_private::MemoryRegionInfo > &ranges, llvm::function_ref< bool(const lldb_private::Thread &)> save_thread_predicate) |
Returns a list of memory ranges that should be saved in the core file, specific for this dynamic loader. | |
Public Member Functions inherited from lldb_private::PluginInterface | |
PluginInterface ()=default | |
virtual | ~PluginInterface ()=default |
virtual llvm::StringRef | GetPluginName ()=0 |
PluginInterface (const PluginInterface &)=delete | |
PluginInterface & | operator= (const PluginInterface &)=delete |
Static Public Member Functions | |
static void | Initialize () |
static void | Terminate () |
static llvm::StringRef | GetPluginNameStatic () |
static llvm::StringRef | GetPluginDescriptionStatic () |
static lldb_private::DynamicLoader * | CreateInstance (lldb_private::Process *process, bool force) |
Static Public Member Functions inherited from lldb_private::DynamicLoaderDarwin | |
static void | CreateSettings (lldb_private::Debugger &debugger) |
Static Public Member Functions inherited from lldb_private::DynamicLoader | |
static DynamicLoader * | FindPlugin (Process *process, llvm::StringRef plugin_name) |
Find a dynamic loader plugin for a given process. | |
static lldb::ModuleSP | LoadBinaryWithUUIDAndAddress (Process *process, llvm::StringRef name, UUID uuid, lldb::addr_t value, bool value_is_offset, bool force_symbol_search, bool notify, bool set_address_in_target, bool allow_memory_image_last_resort) |
Find/load a binary into lldb given a UUID and the address where it is loaded in memory, or a slide to be applied to the file address. | |
Static Protected Member Functions | |
static bool | NotifyBreakpointHit (void *baton, lldb_private::StoppointCallbackContext *context, lldb::user_id_t break_id, lldb::user_id_t break_loc_id) |
Static Protected Member Functions inherited from lldb_private::DynamicLoaderDarwin | |
static bool | UseDYLDSPI (lldb_private::Process *process) |
Protected Attributes | |
uint32_t | m_image_infos_stop_id |
lldb::user_id_t | m_break_id |
lldb::user_id_t | m_dyld_handover_break_id |
std::recursive_mutex | m_mutex |
lldb::addr_t | m_maybe_image_infos_address |
bool | m_libsystem_fully_initalized |
Protected Attributes inherited from lldb_private::DynamicLoaderDarwin | |
lldb::ModuleWP | m_dyld_module_wp |
lldb::ModuleWP | m_libpthread_module_wp |
lldb_private::Address | m_pthread_getspecific_addr |
ThreadIDToTLSMap | m_tid_to_tls_map |
ImageInfo::collection | m_dyld_image_infos |
uint32_t | m_dyld_image_infos_stop_id |
ImageInfo | m_dyld |
std::recursive_mutex | m_mutex |
Protected Attributes inherited from lldb_private::DynamicLoader | |
Process * | m_process |
The process that this dynamic loader plug-in is tracking. | |
Additional Inherited Members | |
Protected Types inherited from lldb_private::DynamicLoaderDarwin | |
typedef std::map< uint64_t, lldb::addr_t > | PthreadKeyToTLSMap |
typedef std::map< lldb::user_id_t, PthreadKeyToTLSMap > | ThreadIDToTLSMap |
Definition at line 31 of file DynamicLoaderMacOS.h.
DynamicLoaderMacOS::DynamicLoaderMacOS | ( | lldb_private::Process * | process | ) |
Definition at line 79 of file DynamicLoaderMacOS.cpp.
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Definition at line 87 of file DynamicLoaderMacOS.cpp.
References lldb_private::Process::GetTarget(), LLDB_BREAK_ID_IS_VALID, m_break_id, m_dyld_handover_break_id, lldb_private::DynamicLoader::m_process, and lldb_private::Target::RemoveBreakpointByID().
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Definition at line 410 of file DynamicLoaderMacOS.cpp.
References lldb_private::DynamicLoaderDarwin::AddModulesUsingPreloadedModules(), lldb_private::Process::GetLoadedDynamicLibrariesInfos(), lldb_private::GetLog(), lldb_private::Process::GetStopID(), lldb_private::DynamicLoaderDarwin::JSONImageInformationIntoImageInfo(), LLDB_LOGF, lldb_private::DynamicLoaderDarwin::m_dyld_image_infos_stop_id, lldb_private::DynamicLoader::m_process, lldb_private::DynamicLoaderDarwin::PreloadModulesFromImageInfos(), and lldb_private::DynamicLoaderDarwin::UpdateSpecialBinariesFromPreloadedModules().
Referenced by NotifyBreakpointHit().
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overridevirtual |
Ask if it is ok to try and load or unload an shared library (image).
The dynamic loader often knows when it would be ok to try and load or unload a shared library. This function call allows the dynamic loader plug-ins to check any current dyld state to make sure it is an ok time to load a shared library.
Implements lldb_private::DynamicLoader.
Definition at line 633 of file DynamicLoaderMacOS.cpp.
References error(), lldb_private::Status::FromErrorString(), GetDyldLockVariableAddressFromModule(), lldb_private::Target::GetImages(), lldb_private::ModuleList::GetMutex(), lldb_private::ModuleList::GetSize(), lldb_private::Process::GetTarget(), LLDB_INVALID_ADDRESS, lldb_private::DynamicLoader::m_process, lldb_private::ModuleList::Modules(), lldb_private::ModuleList::ModulesNoLocking(), and lldb_private::Process::ReadUnsignedIntegerFromMemory().
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Definition at line 600 of file DynamicLoaderMacOS.cpp.
References lldb_private::Process::GetTarget(), LLDB_BREAK_ID_IS_VALID, LLDB_INVALID_BREAK_ID, m_dyld_handover_break_id, lldb_private::DynamicLoader::m_process, and lldb_private::Target::RemoveBreakpointByID().
Referenced by NotifyBreakpointHit().
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Implements lldb_private::DynamicLoaderDarwin.
Definition at line 184 of file DynamicLoaderMacOS.cpp.
References lldb_private::Process::GetTarget(), LLDB_BREAK_ID_IS_VALID, LLDB_INVALID_BREAK_ID, m_break_id, lldb_private::DynamicLoader::m_process, and lldb_private::Target::RemoveBreakpointByID().
Referenced by NotifyBreakpointHit().
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Definition at line 36 of file DynamicLoaderMacOS.cpp.
References lldb_private::ObjectFile::eStrataUser, lldb_private::Target::GetArchitecture(), lldb_private::Target::GetExecutableModulePointer(), lldb_private::Module::GetObjectFile(), lldb_private::ObjectFile::GetStrata(), lldb_private::Process::GetTarget(), lldb_private::ArchSpec::GetTriple(), and lldb_private::DynamicLoaderDarwin::UseDYLDSPI().
Referenced by Initialize(), and Terminate().
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Implements lldb_private::DynamicLoaderDarwin.
Definition at line 180 of file DynamicLoaderMacOS.cpp.
References LLDB_BREAK_ID_IS_VALID, and m_break_id.
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Implements lldb_private::DynamicLoaderDarwin.
Definition at line 140 of file DynamicLoaderMacOS.cpp.
References lldb_private::Process::GetTarget(), LLDB_BREAK_ID_IS_VALID, LLDB_INVALID_BREAK_ID, m_break_id, m_dyld_handover_break_id, m_libsystem_fully_initalized, m_mutex, lldb_private::DynamicLoader::m_process, and lldb_private::Target::RemoveBreakpointByID().
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Implements lldb_private::DynamicLoaderDarwin.
Definition at line 195 of file DynamicLoaderMacOS.cpp.
References lldb_private::DynamicLoaderDarwin::AddModulesUsingPreloadedModules(), lldb_private::Process::GetImageInfoAddress(), lldb_private::Process::GetLoadedDynamicLibrariesInfos(), lldb_private::GetLog(), lldb_private::Process::GetStopID(), lldb_private::DynamicLoaderDarwin::JSONImageInformationIntoImageInfo(), LLDB_LOGF, lldb_private::DynamicLoaderDarwin::m_dyld_image_infos_stop_id, m_maybe_image_infos_address, lldb_private::DynamicLoader::m_process, lldb_private::DynamicLoaderDarwin::PreloadModulesFromImageInfos(), lldb_private::DynamicLoaderDarwin::UnloadAllImages(), and lldb_private::DynamicLoaderDarwin::UpdateSpecialBinariesFromPreloadedModules().
Referenced by NotifyBreakpointHit().
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Definition at line 607 of file DynamicLoaderMacOS.cpp.
References lldb_private::Symbol::GetAddressRef(), lldb_private::Address::GetOpcodeLoadAddress(), lldb_private::Module::GetSymtab(), lldb_private::Process::GetTarget(), lldb_private::Address::IsValid(), LLDB_INVALID_ADDRESS, lldb_private::DynamicLoader::m_process, and lldb_private::Symbol::ValueIsAddress().
Referenced by CanLoadImage().
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Definition at line 456 of file DynamicLoaderMacOS.cpp.
References error(), lldb_private::Process::FixCodeAddress(), lldb_private::ArchSpec::GetAddressByteSize(), lldb_private::Target::GetArchitecture(), lldb_private::Process::GetImageInfoAddress(), lldb_private::Process::GetTarget(), LLDB_INVALID_ADDRESS, lldb_private::DynamicLoader::m_process, and lldb_private::Process::ReadPointerFromMemory().
Referenced by SetNotificationBreakpoint().
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Definition at line 743 of file DynamicLoaderMacOS.cpp.
Referenced by Initialize().
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Implements lldb_private::PluginInterface.
Definition at line 63 of file DynamicLoaderMacOS.h.
References GetPluginNameStatic().
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Definition at line 42 of file DynamicLoaderMacOS.h.
Referenced by GetPluginName(), and Initialize().
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Get information about the shared cache for a process, if possible.
On some systems (e.g. Darwin based systems), a set of libraries that are common to most processes may be put in a single region of memory and mapped into every process, this is called the shared cache, as a performance optimization.
Many targets will not have the concept of a shared cache.
Depending on how the DynamicLoader gathers information about the shared cache, it may be able to only return basic information - like the UUID of the cache - or it may be able to return additional information about the cache.
[out] | base_address | The base address (load address) of the shared cache. LLDB_INVALID_ADDRESS if it cannot be determined. |
[out] | uuid | The UUID of the shared cache, if it can be determined. If the UUID cannot be fetched, IsValid() will be false. |
[out] | using_shared_cache | If this process is using a shared cache. If unknown, eLazyBoolCalculate is returned. |
[out] | private_shared_cache | A LazyBool indicating whether this process is using a private shared cache. If this information cannot be fetched, eLazyBoolCalculate. |
Reimplemented from lldb_private::DynamicLoader.
Definition at line 690 of file DynamicLoaderMacOS.cpp.
References lldb_private::UUID::Clear(), lldb_private::eLazyBoolCalculate, lldb_private::eLazyBoolNo, lldb_private::eLazyBoolYes, lldb_private::StructuredData::Object::GetAsDictionary(), lldb_private::Process::GetSharedCacheInfo(), lldb_private::StructuredData::Dictionary::GetValueForKey(), lldb_private::StructuredData::Dictionary::HasKey(), LLDB_INVALID_ADDRESS, lldb_private::DynamicLoader::m_process, and lldb_private::UUID::SetFromStringRef().
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Definition at line 734 of file DynamicLoaderMacOS.cpp.
References CreateInstance(), GetPluginDescriptionStatic(), GetPluginNameStatic(), and lldb_private::PluginManager::RegisterPlugin().
Referenced by DynamicLoaderMacOSXDYLD::Initialize().
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Return whether the dynamic loader is fully initialized and it's safe to call its APIs.
On some systems (e.g. Darwin based systems), lldb will get notified by the dynamic loader before it itself finished initializing and it's not safe to call certain APIs or SPIs.
Reimplemented from lldb_private::DynamicLoader.
Definition at line 153 of file DynamicLoaderMacOS.cpp.
References lldb_private::Process::GetDynamicLoaderProcessState(), m_libsystem_fully_initalized, and lldb_private::DynamicLoader::m_process.
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Implements lldb_private::DynamicLoaderDarwin.
Definition at line 228 of file DynamicLoaderMacOS.cpp.
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Definition at line 234 of file DynamicLoaderMacOS.cpp.
References AddBinaries(), lldb_private::ModuleList::Clear(), lldb_private::SectionLoadList::Clear(), ClearDYLDHandoverBreakpoint(), lldb_private::DynamicLoaderDarwin::ClearDYLDModule(), ClearNotificationBreakpoint(), DoInitialImageFetch(), lldb::eBasicTypeVoid, lldb::eEncodingUint, error(), lldb_private::StoppointCallbackContext::exe_ctx_ref, lldb_private::Process::FixCodeAddress(), lldb_private::Process::GetABI(), lldb_private::ArchSpec::GetAddressByteSize(), lldb_private::Target::GetArchitecture(), lldb_private::Target::GetDebugger(), lldb_private::ScratchTypeSystemClang::GetForTarget(), lldb_private::UserID::GetID(), lldb_private::Process::GetImageInfoAddress(), lldb_private::Target::GetImages(), lldb_private::CompilerType::GetPointerType(), lldb_private::ExecutionContext::GetProcessPtr(), lldb_private::Value::GetScalar(), lldb_private::Target::GetSectionLoadList(), lldb_private::ModuleList::GetSize(), lldb_private::Process::GetStopID(), lldb_private::DynamicLoader::GetStopWhenImagesChange(), lldb_private::Process::GetTarget(), lldb_private::ExecutionContext::GetThreadRef(), lldb_private::ArchSpec::GetTriple(), lldb_private::ValueList::GetValueAtIndex(), m_image_infos_stop_id, lldb_private::DynamicLoader::m_process, lldb_private::ValueList::PushValue(), lldb_private::Process::ReadPointerFromMemory(), lldb_private::Debugger::ReportWarning(), lldb_private::Value::SetCompilerType(), SetDYLDHandoverBreakpoint(), SetNotificationBreakpoint(), lldb_private::Value::SetValueType(), lldb_private::Scalar::UInt(), UINT32_MAX, lldb_private::Scalar::ULongLong(), lldb_private::DynamicLoaderDarwin::UnloadAllImages(), and lldb_private::DynamicLoaderDarwin::UnloadImages().
Referenced by SetDYLDHandoverBreakpoint(), and SetNotificationBreakpoint().
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Called after attaching a process.
Allow DynamicLoader plug-ins to execute some code after attaching to a process.
Reimplemented from lldb_private::DynamicLoader.
Definition at line 94 of file DynamicLoaderMacOS.cpp.
References lldb_private::Address::Clear(), lldb_private::Process::GetImageInfoAddress(), lldb_private::DynamicLoaderDarwin::GetMutex(), lldb_private::Symbol::GetName(), lldb_private::ThreadList::GetSize(), lldb_private::ThreadList::GetThreadAtIndex(), lldb_private::Process::GetThreadList(), LLDB_INVALID_ADDRESS, lldb_private::DynamicLoaderDarwin::m_libpthread_module_wp, m_libsystem_fully_initalized, m_maybe_image_infos_address, lldb_private::DynamicLoader::m_process, and lldb_private::DynamicLoaderDarwin::m_pthread_getspecific_addr.
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Definition at line 439 of file DynamicLoaderMacOS.cpp.
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Definition at line 586 of file DynamicLoaderMacOS.cpp.
References lldb_private::Target::CreateBreakpoint(), lldb_private::Process::GetTarget(), LLDB_INVALID_BREAK_ID, m_dyld_handover_break_id, lldb_private::DynamicLoader::m_process, and NotifyBreakpointHit().
Referenced by NotifyBreakpointHit().
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Implements lldb_private::DynamicLoaderDarwin.
Definition at line 515 of file DynamicLoaderMacOS.cpp.
References lldb_private::FileSpecList::Append(), lldb_private::Target::CreateBreakpoint(), lldb::eLanguageTypeUnknown, lldb_private::eLazyBoolNo, lldb_private::DynamicLoaderDarwin::GetDYLDModule(), lldb_private::Stoppoint::GetID(), GetNotificationFuncAddrFromImageInfos(), lldb_private::Process::GetTarget(), lldb_private::Breakpoint::HasResolvedLocations(), LLDB_INVALID_ADDRESS, LLDB_INVALID_BREAK_ID, m_break_id, lldb_private::DynamicLoader::m_process, NotifyBreakpointHit(), lldb_private::Target::RemoveBreakpointByID(), lldb_private::Breakpoint::SetBreakpointKind(), lldb_private::Breakpoint::SetCallback(), and lldb_private::Address::SetRawAddress().
Referenced by NotifyBreakpointHit().
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Definition at line 739 of file DynamicLoaderMacOS.cpp.
References CreateInstance(), and lldb_private::PluginManager::UnregisterPlugin().
Referenced by DynamicLoaderMacOSXDYLD::Terminate().
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Definition at line 104 of file DynamicLoaderMacOS.h.
Referenced by ClearNotificationBreakpoint(), DidSetNotificationBreakpoint(), DoClear(), SetNotificationBreakpoint(), and ~DynamicLoaderMacOS().
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Definition at line 105 of file DynamicLoaderMacOS.h.
Referenced by ClearDYLDHandoverBreakpoint(), DoClear(), SetDYLDHandoverBreakpoint(), and ~DynamicLoaderMacOS().
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Definition at line 102 of file DynamicLoaderMacOS.h.
Referenced by NotifyBreakpointHit().
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Definition at line 113 of file DynamicLoaderMacOS.h.
Referenced by DoClear(), IsFullyInitialized(), and ProcessDidExec().
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Definition at line 107 of file DynamicLoaderMacOS.h.
Referenced by DoInitialImageFetch(), and ProcessDidExec().
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Definition at line 106 of file DynamicLoaderMacOS.h.
Referenced by DoClear().