diff options
Diffstat (limited to 'source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp')
| -rw-r--r-- | source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp | 1681 |
1 files changed, 847 insertions, 834 deletions
diff --git a/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp b/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp index 9ec36b383af3..ec13dfa7fd78 100644 --- a/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp +++ b/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.cpp @@ -7,26 +7,25 @@ // //===----------------------------------------------------------------------===// - +#include "Plugins/Process/Utility/HistoryThread.h" #include "lldb/Breakpoint/StoppointCallbackContext.h" +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/DataExtractor.h" #include "lldb/Core/Log.h" #include "lldb/Core/Module.h" #include "lldb/Core/ModuleSpec.h" #include "lldb/Core/PluginManager.h" -#include "lldb/Core/DataExtractor.h" -#include "lldb/Core/DataBufferHeap.h" #include "lldb/Core/Section.h" #include "lldb/Core/StreamString.h" #include "lldb/Host/FileSpec.h" #include "lldb/Symbol/ClangASTContext.h" #include "lldb/Symbol/ObjectFile.h" #include "lldb/Symbol/SymbolContext.h" -#include "Plugins/Process/Utility/HistoryThread.h" +#include "lldb/Target/Process.h" #include "lldb/Target/Queue.h" #include "lldb/Target/QueueList.h" #include "lldb/Target/Target.h" #include "lldb/Target/Thread.h" -#include "lldb/Target/Process.h" #include "lldb/Utility/ProcessStructReader.h" #include "SystemRuntimeMacOSX.h" @@ -39,397 +38,380 @@ using namespace lldb_private; // the plugin info class that gets handed out by the plugin factory and // allows the lldb to instantiate an instance of this class. //---------------------------------------------------------------------- -SystemRuntime * -SystemRuntimeMacOSX::CreateInstance (Process* process) -{ - bool create = false; - if (!create) - { - create = true; - Module* exe_module = process->GetTarget().GetExecutableModulePointer(); - if (exe_module) - { - ObjectFile *object_file = exe_module->GetObjectFile(); - if (object_file) - { - create = (object_file->GetStrata() == ObjectFile::eStrataUser); - } - } - - if (create) - { - const llvm::Triple &triple_ref = process->GetTarget().GetArchitecture().GetTriple(); - switch (triple_ref.getOS()) - { - case llvm::Triple::Darwin: - case llvm::Triple::MacOSX: - case llvm::Triple::IOS: - case llvm::Triple::TvOS: - case llvm::Triple::WatchOS: - create = triple_ref.getVendor() == llvm::Triple::Apple; - break; - default: - create = false; - break; - } - } +SystemRuntime *SystemRuntimeMacOSX::CreateInstance(Process *process) { + bool create = false; + if (!create) { + create = true; + Module *exe_module = process->GetTarget().GetExecutableModulePointer(); + if (exe_module) { + ObjectFile *object_file = exe_module->GetObjectFile(); + if (object_file) { + create = (object_file->GetStrata() == ObjectFile::eStrataUser); + } + } + + if (create) { + const llvm::Triple &triple_ref = + process->GetTarget().GetArchitecture().GetTriple(); + switch (triple_ref.getOS()) { + case llvm::Triple::Darwin: + case llvm::Triple::MacOSX: + case llvm::Triple::IOS: + case llvm::Triple::TvOS: + case llvm::Triple::WatchOS: + create = triple_ref.getVendor() == llvm::Triple::Apple; + break; + default: + create = false; + break; + } } - - if (create) - return new SystemRuntimeMacOSX (process); - return NULL; + } + + if (create) + return new SystemRuntimeMacOSX(process); + return NULL; } //---------------------------------------------------------------------- // Constructor //---------------------------------------------------------------------- SystemRuntimeMacOSX::SystemRuntimeMacOSX(Process *process) - : SystemRuntime(process), - m_break_id(LLDB_INVALID_BREAK_ID), - m_mutex(), - m_get_queues_handler(process), - m_get_pending_items_handler(process), - m_get_item_info_handler(process), - m_get_thread_item_info_handler(process), - m_page_to_free(LLDB_INVALID_ADDRESS), - m_page_to_free_size(0), + : SystemRuntime(process), m_break_id(LLDB_INVALID_BREAK_ID), m_mutex(), + m_get_queues_handler(process), m_get_pending_items_handler(process), + m_get_item_info_handler(process), m_get_thread_item_info_handler(process), + m_page_to_free(LLDB_INVALID_ADDRESS), m_page_to_free_size(0), m_lib_backtrace_recording_info(), m_dispatch_queue_offsets_addr(LLDB_INVALID_ADDRESS), m_libdispatch_offsets(), m_libpthread_layout_offsets_addr(LLDB_INVALID_ADDRESS), - m_libpthread_offsets(), - m_dispatch_tsd_indexes_addr(LLDB_INVALID_ADDRESS), + m_libpthread_offsets(), m_dispatch_tsd_indexes_addr(LLDB_INVALID_ADDRESS), m_libdispatch_tsd_indexes(), m_dispatch_voucher_offsets_addr(LLDB_INVALID_ADDRESS), - m_libdispatch_voucher_offsets() -{ -} + m_libdispatch_voucher_offsets() {} //---------------------------------------------------------------------- // Destructor //---------------------------------------------------------------------- -SystemRuntimeMacOSX::~SystemRuntimeMacOSX() -{ - Clear (true); -} +SystemRuntimeMacOSX::~SystemRuntimeMacOSX() { Clear(true); } -void -SystemRuntimeMacOSX::Detach () -{ - m_get_queues_handler.Detach(); - m_get_pending_items_handler.Detach(); - m_get_item_info_handler.Detach(); - m_get_thread_item_info_handler.Detach(); +void SystemRuntimeMacOSX::Detach() { + m_get_queues_handler.Detach(); + m_get_pending_items_handler.Detach(); + m_get_item_info_handler.Detach(); + m_get_thread_item_info_handler.Detach(); } //---------------------------------------------------------------------- // Clear out the state of this class. //---------------------------------------------------------------------- -void -SystemRuntimeMacOSX::Clear (bool clear_process) -{ - std::lock_guard<std::recursive_mutex> guard(m_mutex); +void SystemRuntimeMacOSX::Clear(bool clear_process) { + std::lock_guard<std::recursive_mutex> guard(m_mutex); - if (m_process->IsAlive() && LLDB_BREAK_ID_IS_VALID(m_break_id)) - m_process->ClearBreakpointSiteByID(m_break_id); + if (m_process->IsAlive() && LLDB_BREAK_ID_IS_VALID(m_break_id)) + m_process->ClearBreakpointSiteByID(m_break_id); - if (clear_process) - m_process = NULL; - m_break_id = LLDB_INVALID_BREAK_ID; + if (clear_process) + m_process = NULL; + m_break_id = LLDB_INVALID_BREAK_ID; } - std::string -SystemRuntimeMacOSX::GetQueueNameFromThreadQAddress (addr_t dispatch_qaddr) -{ - std::string dispatch_queue_name; - if (dispatch_qaddr == LLDB_INVALID_ADDRESS || dispatch_qaddr == 0) - return ""; - - ReadLibdispatchOffsets (); - if (m_libdispatch_offsets.IsValid ()) - { - // dispatch_qaddr is from a thread_info(THREAD_IDENTIFIER_INFO) call for a thread - - // deref it to get the address of the dispatch_queue_t structure for this thread's - // queue. - Error error; - addr_t dispatch_queue_addr = m_process->ReadPointerFromMemory (dispatch_qaddr, error); - if (error.Success()) - { - if (m_libdispatch_offsets.dqo_version >= 4) - { - // libdispatch versions 4+, pointer to dispatch name is in the - // queue structure. - addr_t pointer_to_label_address = dispatch_queue_addr + m_libdispatch_offsets.dqo_label; - addr_t label_addr = m_process->ReadPointerFromMemory (pointer_to_label_address, error); - if (error.Success()) - { - m_process->ReadCStringFromMemory (label_addr, dispatch_queue_name, error); - } - } - else - { - // libdispatch versions 1-3, dispatch name is a fixed width char array - // in the queue structure. - addr_t label_addr = dispatch_queue_addr + m_libdispatch_offsets.dqo_label; - dispatch_queue_name.resize (m_libdispatch_offsets.dqo_label_size, '\0'); - size_t bytes_read = m_process->ReadMemory (label_addr, &dispatch_queue_name[0], m_libdispatch_offsets.dqo_label_size, error); - if (bytes_read < m_libdispatch_offsets.dqo_label_size) - dispatch_queue_name.erase (bytes_read); - } +SystemRuntimeMacOSX::GetQueueNameFromThreadQAddress(addr_t dispatch_qaddr) { + std::string dispatch_queue_name; + if (dispatch_qaddr == LLDB_INVALID_ADDRESS || dispatch_qaddr == 0) + return ""; + + ReadLibdispatchOffsets(); + if (m_libdispatch_offsets.IsValid()) { + // dispatch_qaddr is from a thread_info(THREAD_IDENTIFIER_INFO) call for a + // thread - + // deref it to get the address of the dispatch_queue_t structure for this + // thread's + // queue. + Error error; + addr_t dispatch_queue_addr = + m_process->ReadPointerFromMemory(dispatch_qaddr, error); + if (error.Success()) { + if (m_libdispatch_offsets.dqo_version >= 4) { + // libdispatch versions 4+, pointer to dispatch name is in the + // queue structure. + addr_t pointer_to_label_address = + dispatch_queue_addr + m_libdispatch_offsets.dqo_label; + addr_t label_addr = + m_process->ReadPointerFromMemory(pointer_to_label_address, error); + if (error.Success()) { + m_process->ReadCStringFromMemory(label_addr, dispatch_queue_name, + error); } + } else { + // libdispatch versions 1-3, dispatch name is a fixed width char array + // in the queue structure. + addr_t label_addr = + dispatch_queue_addr + m_libdispatch_offsets.dqo_label; + dispatch_queue_name.resize(m_libdispatch_offsets.dqo_label_size, '\0'); + size_t bytes_read = + m_process->ReadMemory(label_addr, &dispatch_queue_name[0], + m_libdispatch_offsets.dqo_label_size, error); + if (bytes_read < m_libdispatch_offsets.dqo_label_size) + dispatch_queue_name.erase(bytes_read); + } } - return dispatch_queue_name; + } + return dispatch_queue_name; } -lldb::addr_t -SystemRuntimeMacOSX::GetLibdispatchQueueAddressFromThreadQAddress (addr_t dispatch_qaddr) -{ - addr_t libdispatch_queue_t_address = LLDB_INVALID_ADDRESS; +lldb::addr_t SystemRuntimeMacOSX::GetLibdispatchQueueAddressFromThreadQAddress( + addr_t dispatch_qaddr) { + addr_t libdispatch_queue_t_address = LLDB_INVALID_ADDRESS; + Error error; + libdispatch_queue_t_address = + m_process->ReadPointerFromMemory(dispatch_qaddr, error); + if (!error.Success()) { + libdispatch_queue_t_address = LLDB_INVALID_ADDRESS; + } + return libdispatch_queue_t_address; +} + +lldb::QueueKind SystemRuntimeMacOSX::GetQueueKind(addr_t dispatch_queue_addr) { + if (dispatch_queue_addr == LLDB_INVALID_ADDRESS || dispatch_queue_addr == 0) + return eQueueKindUnknown; + + QueueKind kind = eQueueKindUnknown; + ReadLibdispatchOffsets(); + if (m_libdispatch_offsets.IsValid() && + m_libdispatch_offsets.dqo_version >= 4) { Error error; - libdispatch_queue_t_address = m_process->ReadPointerFromMemory (dispatch_qaddr, error); - if (!error.Success()) - { - libdispatch_queue_t_address = LLDB_INVALID_ADDRESS; + uint64_t width = m_process->ReadUnsignedIntegerFromMemory( + dispatch_queue_addr + m_libdispatch_offsets.dqo_width, + m_libdispatch_offsets.dqo_width_size, 0, error); + if (error.Success()) { + if (width == 1) { + kind = eQueueKindSerial; + } + if (width > 1) { + kind = eQueueKindConcurrent; + } } - return libdispatch_queue_t_address; + } + return kind; } -lldb::QueueKind -SystemRuntimeMacOSX::GetQueueKind (addr_t dispatch_queue_addr) -{ - if (dispatch_queue_addr == LLDB_INVALID_ADDRESS || dispatch_queue_addr == 0) - return eQueueKindUnknown; - - QueueKind kind = eQueueKindUnknown; - ReadLibdispatchOffsets (); - if (m_libdispatch_offsets.IsValid () && m_libdispatch_offsets.dqo_version >= 4) - { - Error error; - uint64_t width = m_process->ReadUnsignedIntegerFromMemory (dispatch_queue_addr + m_libdispatch_offsets.dqo_width, m_libdispatch_offsets.dqo_width_size, 0, error); - if (error.Success()) - { - if (width == 1) - { - kind = eQueueKindSerial; - } - if (width > 1) - { - kind = eQueueKindConcurrent; - } - } +void SystemRuntimeMacOSX::AddThreadExtendedInfoPacketHints( + lldb_private::StructuredData::ObjectSP dict_sp) { + StructuredData::Dictionary *dict = dict_sp->GetAsDictionary(); + if (dict) { + ReadLibpthreadOffsets(); + if (m_libpthread_offsets.IsValid()) { + dict->AddIntegerItem("plo_pthread_tsd_base_offset", + m_libpthread_offsets.plo_pthread_tsd_base_offset); + dict->AddIntegerItem( + "plo_pthread_tsd_base_address_offset", + m_libpthread_offsets.plo_pthread_tsd_base_address_offset); + dict->AddIntegerItem("plo_pthread_tsd_entry_size", + m_libpthread_offsets.plo_pthread_tsd_entry_size); } - return kind; -} -void -SystemRuntimeMacOSX::AddThreadExtendedInfoPacketHints (lldb_private::StructuredData::ObjectSP dict_sp) -{ - StructuredData::Dictionary *dict = dict_sp->GetAsDictionary(); - if (dict) - { - ReadLibpthreadOffsets(); - if (m_libpthread_offsets.IsValid()) - { - dict->AddIntegerItem ("plo_pthread_tsd_base_offset", m_libpthread_offsets.plo_pthread_tsd_base_offset); - dict->AddIntegerItem ("plo_pthread_tsd_base_address_offset", m_libpthread_offsets.plo_pthread_tsd_base_address_offset); - dict->AddIntegerItem ("plo_pthread_tsd_entry_size", m_libpthread_offsets.plo_pthread_tsd_entry_size); - } - - ReadLibdispatchTSDIndexes (); - if (m_libdispatch_tsd_indexes.IsValid()) - { - dict->AddIntegerItem ("dti_queue_index", m_libdispatch_tsd_indexes.dti_queue_index); - dict->AddIntegerItem ("dti_voucher_index", m_libdispatch_tsd_indexes.dti_voucher_index); - dict->AddIntegerItem ("dti_qos_class_index", m_libdispatch_tsd_indexes.dti_qos_class_index); - } + ReadLibdispatchTSDIndexes(); + if (m_libdispatch_tsd_indexes.IsValid()) { + dict->AddIntegerItem("dti_queue_index", + m_libdispatch_tsd_indexes.dti_queue_index); + dict->AddIntegerItem("dti_voucher_index", + m_libdispatch_tsd_indexes.dti_voucher_index); + dict->AddIntegerItem("dti_qos_class_index", + m_libdispatch_tsd_indexes.dti_qos_class_index); } + } } -bool -SystemRuntimeMacOSX::SafeToCallFunctionsOnThisThread (ThreadSP thread_sp) -{ - if (thread_sp && thread_sp->GetStackFrameCount() > 0 && thread_sp->GetFrameWithConcreteFrameIndex(0)) - { - const SymbolContext sym_ctx (thread_sp->GetFrameWithConcreteFrameIndex(0)->GetSymbolContext (eSymbolContextSymbol)); - static ConstString g_select_symbol ("__select"); - if (sym_ctx.GetFunctionName() == g_select_symbol) - { - return false; - } +bool SystemRuntimeMacOSX::SafeToCallFunctionsOnThisThread(ThreadSP thread_sp) { + if (thread_sp && thread_sp->GetStackFrameCount() > 0 && + thread_sp->GetFrameWithConcreteFrameIndex(0)) { + const SymbolContext sym_ctx( + thread_sp->GetFrameWithConcreteFrameIndex(0)->GetSymbolContext( + eSymbolContextSymbol)); + static ConstString g_select_symbol("__select"); + if (sym_ctx.GetFunctionName() == g_select_symbol) { + return false; } - return true; + } + return true; } lldb::queue_id_t -SystemRuntimeMacOSX::GetQueueIDFromThreadQAddress (lldb::addr_t dispatch_qaddr) -{ - queue_id_t queue_id = LLDB_INVALID_QUEUE_ID; - - if (dispatch_qaddr == LLDB_INVALID_ADDRESS || dispatch_qaddr == 0) - return queue_id; - - ReadLibdispatchOffsets (); - if (m_libdispatch_offsets.IsValid ()) - { - // dispatch_qaddr is from a thread_info(THREAD_IDENTIFIER_INFO) call for a thread - - // deref it to get the address of the dispatch_queue_t structure for this thread's - // queue. - Error error; - uint64_t dispatch_queue_addr = m_process->ReadPointerFromMemory (dispatch_qaddr, error); - if (error.Success()) - { - addr_t serialnum_address = dispatch_queue_addr + m_libdispatch_offsets.dqo_serialnum; - queue_id_t serialnum = m_process->ReadUnsignedIntegerFromMemory (serialnum_address, m_libdispatch_offsets.dqo_serialnum_size, LLDB_INVALID_QUEUE_ID, error); - if (error.Success()) - { - queue_id = serialnum; - } - } - } +SystemRuntimeMacOSX::GetQueueIDFromThreadQAddress(lldb::addr_t dispatch_qaddr) { + queue_id_t queue_id = LLDB_INVALID_QUEUE_ID; + if (dispatch_qaddr == LLDB_INVALID_ADDRESS || dispatch_qaddr == 0) return queue_id; -} - -void -SystemRuntimeMacOSX::ReadLibdispatchOffsetsAddress () -{ - if (m_dispatch_queue_offsets_addr != LLDB_INVALID_ADDRESS) - return; + ReadLibdispatchOffsets(); + if (m_libdispatch_offsets.IsValid()) { + // dispatch_qaddr is from a thread_info(THREAD_IDENTIFIER_INFO) call for a + // thread - + // deref it to get the address of the dispatch_queue_t structure for this + // thread's + // queue. + Error error; + uint64_t dispatch_queue_addr = + m_process->ReadPointerFromMemory(dispatch_qaddr, error); + if (error.Success()) { + addr_t serialnum_address = + dispatch_queue_addr + m_libdispatch_offsets.dqo_serialnum; + queue_id_t serialnum = m_process->ReadUnsignedIntegerFromMemory( + serialnum_address, m_libdispatch_offsets.dqo_serialnum_size, + LLDB_INVALID_QUEUE_ID, error); + if (error.Success()) { + queue_id = serialnum; + } + } + } - static ConstString g_dispatch_queue_offsets_symbol_name ("dispatch_queue_offsets"); - const Symbol *dispatch_queue_offsets_symbol = NULL; + return queue_id; +} - // libdispatch symbols were in libSystem.B.dylib up through Mac OS X 10.6 ("Snow Leopard") - ModuleSpec libSystem_module_spec (FileSpec("libSystem.B.dylib", false)); - ModuleSP module_sp(m_process->GetTarget().GetImages().FindFirstModule (libSystem_module_spec)); +void SystemRuntimeMacOSX::ReadLibdispatchOffsetsAddress() { + if (m_dispatch_queue_offsets_addr != LLDB_INVALID_ADDRESS) + return; + + static ConstString g_dispatch_queue_offsets_symbol_name( + "dispatch_queue_offsets"); + const Symbol *dispatch_queue_offsets_symbol = NULL; + + // libdispatch symbols were in libSystem.B.dylib up through Mac OS X 10.6 + // ("Snow Leopard") + ModuleSpec libSystem_module_spec(FileSpec("libSystem.B.dylib", false)); + ModuleSP module_sp(m_process->GetTarget().GetImages().FindFirstModule( + libSystem_module_spec)); + if (module_sp) + dispatch_queue_offsets_symbol = module_sp->FindFirstSymbolWithNameAndType( + g_dispatch_queue_offsets_symbol_name, eSymbolTypeData); + + // libdispatch symbols are in their own dylib as of Mac OS X 10.7 ("Lion") and + // later + if (dispatch_queue_offsets_symbol == NULL) { + ModuleSpec libdispatch_module_spec(FileSpec("libdispatch.dylib", false)); + module_sp = m_process->GetTarget().GetImages().FindFirstModule( + libdispatch_module_spec); if (module_sp) - dispatch_queue_offsets_symbol = module_sp->FindFirstSymbolWithNameAndType (g_dispatch_queue_offsets_symbol_name, eSymbolTypeData); - - // libdispatch symbols are in their own dylib as of Mac OS X 10.7 ("Lion") and later - if (dispatch_queue_offsets_symbol == NULL) - { - ModuleSpec libdispatch_module_spec (FileSpec("libdispatch.dylib", false)); - module_sp = m_process->GetTarget().GetImages().FindFirstModule (libdispatch_module_spec); - if (module_sp) - dispatch_queue_offsets_symbol = module_sp->FindFirstSymbolWithNameAndType (g_dispatch_queue_offsets_symbol_name, eSymbolTypeData); - } - if (dispatch_queue_offsets_symbol) - m_dispatch_queue_offsets_addr = dispatch_queue_offsets_symbol->GetLoadAddress(&m_process->GetTarget()); + dispatch_queue_offsets_symbol = module_sp->FindFirstSymbolWithNameAndType( + g_dispatch_queue_offsets_symbol_name, eSymbolTypeData); + } + if (dispatch_queue_offsets_symbol) + m_dispatch_queue_offsets_addr = + dispatch_queue_offsets_symbol->GetLoadAddress(&m_process->GetTarget()); } -void -SystemRuntimeMacOSX::ReadLibdispatchOffsets () -{ - if (m_libdispatch_offsets.IsValid()) - return; - - ReadLibdispatchOffsetsAddress (); - - uint8_t memory_buffer[sizeof (struct LibdispatchOffsets)]; - DataExtractor data (memory_buffer, - sizeof(memory_buffer), - m_process->GetByteOrder(), - m_process->GetAddressByteSize()); - - Error error; - if (m_process->ReadMemory (m_dispatch_queue_offsets_addr, memory_buffer, sizeof(memory_buffer), error) == sizeof(memory_buffer)) - { - lldb::offset_t data_offset = 0; - - // The struct LibdispatchOffsets is a series of uint16_t's - extract them all - // in one big go. - data.GetU16 (&data_offset, &m_libdispatch_offsets.dqo_version, sizeof (struct LibdispatchOffsets) / sizeof (uint16_t)); - } +void SystemRuntimeMacOSX::ReadLibdispatchOffsets() { + if (m_libdispatch_offsets.IsValid()) + return; + + ReadLibdispatchOffsetsAddress(); + + uint8_t memory_buffer[sizeof(struct LibdispatchOffsets)]; + DataExtractor data(memory_buffer, sizeof(memory_buffer), + m_process->GetByteOrder(), + m_process->GetAddressByteSize()); + + Error error; + if (m_process->ReadMemory(m_dispatch_queue_offsets_addr, memory_buffer, + sizeof(memory_buffer), + error) == sizeof(memory_buffer)) { + lldb::offset_t data_offset = 0; + + // The struct LibdispatchOffsets is a series of uint16_t's - extract them + // all + // in one big go. + data.GetU16(&data_offset, &m_libdispatch_offsets.dqo_version, + sizeof(struct LibdispatchOffsets) / sizeof(uint16_t)); + } } -void -SystemRuntimeMacOSX::ReadLibpthreadOffsetsAddress () -{ - if (m_libpthread_layout_offsets_addr != LLDB_INVALID_ADDRESS) - return; - - static ConstString g_libpthread_layout_offsets_symbol_name ("pthread_layout_offsets"); - const Symbol *libpthread_layout_offsets_symbol = NULL; - - ModuleSpec libpthread_module_spec (FileSpec("libsystem_pthread.dylib", false)); - ModuleSP module_sp (m_process->GetTarget().GetImages().FindFirstModule (libpthread_module_spec)); - if (module_sp) - { - libpthread_layout_offsets_symbol = module_sp->FindFirstSymbolWithNameAndType - (g_libpthread_layout_offsets_symbol_name, eSymbolTypeData); - if (libpthread_layout_offsets_symbol) - { - m_libpthread_layout_offsets_addr = libpthread_layout_offsets_symbol->GetLoadAddress(&m_process->GetTarget()); - } +void SystemRuntimeMacOSX::ReadLibpthreadOffsetsAddress() { + if (m_libpthread_layout_offsets_addr != LLDB_INVALID_ADDRESS) + return; + + static ConstString g_libpthread_layout_offsets_symbol_name( + "pthread_layout_offsets"); + const Symbol *libpthread_layout_offsets_symbol = NULL; + + ModuleSpec libpthread_module_spec(FileSpec("libsystem_pthread.dylib", false)); + ModuleSP module_sp(m_process->GetTarget().GetImages().FindFirstModule( + libpthread_module_spec)); + if (module_sp) { + libpthread_layout_offsets_symbol = + module_sp->FindFirstSymbolWithNameAndType( + g_libpthread_layout_offsets_symbol_name, eSymbolTypeData); + if (libpthread_layout_offsets_symbol) { + m_libpthread_layout_offsets_addr = + libpthread_layout_offsets_symbol->GetLoadAddress( + &m_process->GetTarget()); } + } } -void -SystemRuntimeMacOSX::ReadLibpthreadOffsets () -{ - if (m_libpthread_offsets.IsValid()) - return; +void SystemRuntimeMacOSX::ReadLibpthreadOffsets() { + if (m_libpthread_offsets.IsValid()) + return; - ReadLibpthreadOffsetsAddress (); + ReadLibpthreadOffsetsAddress(); - if (m_libpthread_layout_offsets_addr != LLDB_INVALID_ADDRESS) - { - uint8_t memory_buffer[sizeof (struct LibpthreadOffsets)]; - DataExtractor data (memory_buffer, - sizeof(memory_buffer), - m_process->GetByteOrder(), - m_process->GetAddressByteSize()); - Error error; - if (m_process->ReadMemory (m_libpthread_layout_offsets_addr, memory_buffer, sizeof(memory_buffer), error) == sizeof(memory_buffer)) - { - lldb::offset_t data_offset = 0; - - // The struct LibpthreadOffsets is a series of uint16_t's - extract them all - // in one big go. - data.GetU16 (&data_offset, &m_libpthread_offsets.plo_version, sizeof (struct LibpthreadOffsets) / sizeof (uint16_t)); - } + if (m_libpthread_layout_offsets_addr != LLDB_INVALID_ADDRESS) { + uint8_t memory_buffer[sizeof(struct LibpthreadOffsets)]; + DataExtractor data(memory_buffer, sizeof(memory_buffer), + m_process->GetByteOrder(), + m_process->GetAddressByteSize()); + Error error; + if (m_process->ReadMemory(m_libpthread_layout_offsets_addr, memory_buffer, + sizeof(memory_buffer), + error) == sizeof(memory_buffer)) { + lldb::offset_t data_offset = 0; + + // The struct LibpthreadOffsets is a series of uint16_t's - extract them + // all + // in one big go. + data.GetU16(&data_offset, &m_libpthread_offsets.plo_version, + sizeof(struct LibpthreadOffsets) / sizeof(uint16_t)); } + } } -void -SystemRuntimeMacOSX::ReadLibdispatchTSDIndexesAddress () -{ - if (m_dispatch_tsd_indexes_addr != LLDB_INVALID_ADDRESS) - return; - - static ConstString g_libdispatch_tsd_indexes_symbol_name ("dispatch_tsd_indexes"); - const Symbol *libdispatch_tsd_indexes_symbol = NULL; - - ModuleSpec libpthread_module_spec (FileSpec("libdispatch.dylib", false)); - ModuleSP module_sp (m_process->GetTarget().GetImages().FindFirstModule (libpthread_module_spec)); - if (module_sp) - { - libdispatch_tsd_indexes_symbol = module_sp->FindFirstSymbolWithNameAndType - (g_libdispatch_tsd_indexes_symbol_name, eSymbolTypeData); - if (libdispatch_tsd_indexes_symbol) - { - m_dispatch_tsd_indexes_addr = libdispatch_tsd_indexes_symbol->GetLoadAddress(&m_process->GetTarget()); - } +void SystemRuntimeMacOSX::ReadLibdispatchTSDIndexesAddress() { + if (m_dispatch_tsd_indexes_addr != LLDB_INVALID_ADDRESS) + return; + + static ConstString g_libdispatch_tsd_indexes_symbol_name( + "dispatch_tsd_indexes"); + const Symbol *libdispatch_tsd_indexes_symbol = NULL; + + ModuleSpec libpthread_module_spec(FileSpec("libdispatch.dylib", false)); + ModuleSP module_sp(m_process->GetTarget().GetImages().FindFirstModule( + libpthread_module_spec)); + if (module_sp) { + libdispatch_tsd_indexes_symbol = module_sp->FindFirstSymbolWithNameAndType( + g_libdispatch_tsd_indexes_symbol_name, eSymbolTypeData); + if (libdispatch_tsd_indexes_symbol) { + m_dispatch_tsd_indexes_addr = + libdispatch_tsd_indexes_symbol->GetLoadAddress( + &m_process->GetTarget()); } + } } -void -SystemRuntimeMacOSX::ReadLibdispatchTSDIndexes () -{ - if (m_libdispatch_tsd_indexes.IsValid()) - return; +void SystemRuntimeMacOSX::ReadLibdispatchTSDIndexes() { + if (m_libdispatch_tsd_indexes.IsValid()) + return; - ReadLibdispatchTSDIndexesAddress (); + ReadLibdispatchTSDIndexesAddress(); - if (m_dispatch_tsd_indexes_addr != LLDB_INVALID_ADDRESS) - { + if (m_dispatch_tsd_indexes_addr != LLDB_INVALID_ADDRESS) { - // We don't need to check the version number right now, it will be at least 2, but - // keep this code around to fetch just the version # for the future where we need - // to fetch alternate versions of the struct. -# if 0 +// We don't need to check the version number right now, it will be at least 2, +// but +// keep this code around to fetch just the version # for the future where we +// need +// to fetch alternate versions of the struct. +#if 0 uint16_t dti_version = 2; Address dti_struct_addr; if (m_process->GetTarget().ResolveLoadAddress (m_dispatch_tsd_indexes_addr, dti_struct_addr)) @@ -443,141 +425,171 @@ SystemRuntimeMacOSX::ReadLibdispatchTSDIndexes () } #endif - ClangASTContext *ast_ctx = m_process->GetTarget().GetScratchClangASTContext(); - if (ast_ctx->getASTContext() && m_dispatch_tsd_indexes_addr != LLDB_INVALID_ADDRESS) - { - CompilerType uint16 = ast_ctx->GetBuiltinTypeForEncodingAndBitSize (eEncodingUint, 16); - CompilerType dispatch_tsd_indexes_s = ast_ctx->CreateRecordType(nullptr, lldb::eAccessPublic, "__lldb_dispatch_tsd_indexes_s", clang::TTK_Struct, lldb::eLanguageTypeC); - - ClangASTContext::StartTagDeclarationDefinition(dispatch_tsd_indexes_s); - ClangASTContext::AddFieldToRecordType (dispatch_tsd_indexes_s, "dti_version", uint16, lldb::eAccessPublic, 0); - ClangASTContext::AddFieldToRecordType (dispatch_tsd_indexes_s, "dti_queue_index", uint16, lldb::eAccessPublic, 0); - ClangASTContext::AddFieldToRecordType (dispatch_tsd_indexes_s, "dti_voucher_index", uint16, lldb::eAccessPublic, 0); - ClangASTContext::AddFieldToRecordType (dispatch_tsd_indexes_s, "dti_qos_class_index", uint16, lldb::eAccessPublic, 0); - ClangASTContext::CompleteTagDeclarationDefinition(dispatch_tsd_indexes_s); - - ProcessStructReader struct_reader (m_process, m_dispatch_tsd_indexes_addr, dispatch_tsd_indexes_s); - - m_libdispatch_tsd_indexes.dti_version = struct_reader.GetField<uint16_t>(ConstString("dti_version")); - m_libdispatch_tsd_indexes.dti_queue_index = struct_reader.GetField<uint16_t>(ConstString("dti_queue_index")); - m_libdispatch_tsd_indexes.dti_voucher_index = struct_reader.GetField<uint16_t>(ConstString("dti_voucher_index")); - m_libdispatch_tsd_indexes.dti_qos_class_index = struct_reader.GetField<uint16_t>(ConstString("dti_qos_class_index")); - } + ClangASTContext *ast_ctx = + m_process->GetTarget().GetScratchClangASTContext(); + if (ast_ctx->getASTContext() && + m_dispatch_tsd_indexes_addr != LLDB_INVALID_ADDRESS) { + CompilerType uint16 = + ast_ctx->GetBuiltinTypeForEncodingAndBitSize(eEncodingUint, 16); + CompilerType dispatch_tsd_indexes_s = ast_ctx->CreateRecordType( + nullptr, lldb::eAccessPublic, "__lldb_dispatch_tsd_indexes_s", + clang::TTK_Struct, lldb::eLanguageTypeC); + + ClangASTContext::StartTagDeclarationDefinition(dispatch_tsd_indexes_s); + ClangASTContext::AddFieldToRecordType(dispatch_tsd_indexes_s, + "dti_version", uint16, + lldb::eAccessPublic, 0); + ClangASTContext::AddFieldToRecordType(dispatch_tsd_indexes_s, + "dti_queue_index", uint16, + lldb::eAccessPublic, 0); + ClangASTContext::AddFieldToRecordType(dispatch_tsd_indexes_s, + "dti_voucher_index", uint16, + lldb::eAccessPublic, 0); + ClangASTContext::AddFieldToRecordType(dispatch_tsd_indexes_s, + "dti_qos_class_index", uint16, + lldb::eAccessPublic, 0); + ClangASTContext::CompleteTagDeclarationDefinition(dispatch_tsd_indexes_s); + + ProcessStructReader struct_reader(m_process, m_dispatch_tsd_indexes_addr, + dispatch_tsd_indexes_s); + + m_libdispatch_tsd_indexes.dti_version = + struct_reader.GetField<uint16_t>(ConstString("dti_version")); + m_libdispatch_tsd_indexes.dti_queue_index = + struct_reader.GetField<uint16_t>(ConstString("dti_queue_index")); + m_libdispatch_tsd_indexes.dti_voucher_index = + struct_reader.GetField<uint16_t>(ConstString("dti_voucher_index")); + m_libdispatch_tsd_indexes.dti_qos_class_index = + struct_reader.GetField<uint16_t>(ConstString("dti_qos_class_index")); } + } } +ThreadSP SystemRuntimeMacOSX::GetExtendedBacktraceThread(ThreadSP real_thread, + ConstString type) { + ThreadSP originating_thread_sp; + if (BacktraceRecordingHeadersInitialized() && + type == ConstString("libdispatch")) { + Error error; -ThreadSP -SystemRuntimeMacOSX::GetExtendedBacktraceThread (ThreadSP real_thread, ConstString type) -{ - ThreadSP originating_thread_sp; - if (BacktraceRecordingHeadersInitialized() && type == ConstString ("libdispatch")) - { - Error error; - - // real_thread is either an actual, live thread (in which case we need to call into - // libBacktraceRecording to find its originator) or it is an extended backtrace itself, - // in which case we get the token from it and call into libBacktraceRecording to find - // the originator of that token. - - if (real_thread->GetExtendedBacktraceToken() != LLDB_INVALID_ADDRESS) - { - originating_thread_sp = GetExtendedBacktraceFromItemRef (real_thread->GetExtendedBacktraceToken()); - } - else - { - ThreadSP cur_thread_sp (m_process->GetThreadList().GetExpressionExecutionThread()); - AppleGetThreadItemInfoHandler::GetThreadItemInfoReturnInfo ret = m_get_thread_item_info_handler.GetThreadItemInfo (*cur_thread_sp.get(), real_thread->GetID(), m_page_to_free, m_page_to_free_size, error); - m_page_to_free = LLDB_INVALID_ADDRESS; - m_page_to_free_size = 0; - if (ret.item_buffer_ptr != 0 && ret.item_buffer_ptr != LLDB_INVALID_ADDRESS && ret.item_buffer_size > 0) - { - DataBufferHeap data (ret.item_buffer_size, 0); - if (m_process->ReadMemory (ret.item_buffer_ptr, data.GetBytes(), ret.item_buffer_size, error) && error.Success()) - { - DataExtractor extractor (data.GetBytes(), data.GetByteSize(), m_process->GetByteOrder(), m_process->GetAddressByteSize()); - ItemInfo item = ExtractItemInfoFromBuffer (extractor); - bool stop_id_is_valid = true; - if (item.stop_id == 0) - stop_id_is_valid = false; - originating_thread_sp.reset (new HistoryThread (*m_process, - item.enqueuing_thread_id, - item.enqueuing_callstack, - item.stop_id, - stop_id_is_valid)); - originating_thread_sp->SetExtendedBacktraceToken (item.item_that_enqueued_this); - originating_thread_sp->SetQueueName (item.enqueuing_queue_label.c_str()); - originating_thread_sp->SetQueueID (item.enqueuing_queue_serialnum); -// originating_thread_sp->SetThreadName (item.enqueuing_thread_label.c_str()); - } - m_page_to_free = ret.item_buffer_ptr; - m_page_to_free_size = ret.item_buffer_size; - } + // real_thread is either an actual, live thread (in which case we need to + // call into + // libBacktraceRecording to find its originator) or it is an extended + // backtrace itself, + // in which case we get the token from it and call into + // libBacktraceRecording to find + // the originator of that token. + + if (real_thread->GetExtendedBacktraceToken() != LLDB_INVALID_ADDRESS) { + originating_thread_sp = GetExtendedBacktraceFromItemRef( + real_thread->GetExtendedBacktraceToken()); + } else { + ThreadSP cur_thread_sp( + m_process->GetThreadList().GetExpressionExecutionThread()); + AppleGetThreadItemInfoHandler::GetThreadItemInfoReturnInfo ret = + m_get_thread_item_info_handler.GetThreadItemInfo( + *cur_thread_sp.get(), real_thread->GetID(), m_page_to_free, + m_page_to_free_size, error); + m_page_to_free = LLDB_INVALID_ADDRESS; + m_page_to_free_size = 0; + if (ret.item_buffer_ptr != 0 && + ret.item_buffer_ptr != LLDB_INVALID_ADDRESS && + ret.item_buffer_size > 0) { + DataBufferHeap data(ret.item_buffer_size, 0); + if (m_process->ReadMemory(ret.item_buffer_ptr, data.GetBytes(), + ret.item_buffer_size, error) && + error.Success()) { + DataExtractor extractor(data.GetBytes(), data.GetByteSize(), + m_process->GetByteOrder(), + m_process->GetAddressByteSize()); + ItemInfo item = ExtractItemInfoFromBuffer(extractor); + bool stop_id_is_valid = true; + if (item.stop_id == 0) + stop_id_is_valid = false; + originating_thread_sp.reset(new HistoryThread( + *m_process, item.enqueuing_thread_id, item.enqueuing_callstack, + item.stop_id, stop_id_is_valid)); + originating_thread_sp->SetExtendedBacktraceToken( + item.item_that_enqueued_this); + originating_thread_sp->SetQueueName( + item.enqueuing_queue_label.c_str()); + originating_thread_sp->SetQueueID(item.enqueuing_queue_serialnum); + // originating_thread_sp->SetThreadName + // (item.enqueuing_thread_label.c_str()); } + m_page_to_free = ret.item_buffer_ptr; + m_page_to_free_size = ret.item_buffer_size; + } } - return originating_thread_sp; + } + return originating_thread_sp; } ThreadSP -SystemRuntimeMacOSX::GetExtendedBacktraceFromItemRef (lldb::addr_t item_ref) -{ - ThreadSP return_thread_sp; - - AppleGetItemInfoHandler::GetItemInfoReturnInfo ret; - ThreadSP cur_thread_sp (m_process->GetThreadList().GetExpressionExecutionThread()); - Error error; - ret = m_get_item_info_handler.GetItemInfo (*cur_thread_sp.get(), item_ref, m_page_to_free, m_page_to_free_size, error); - m_page_to_free = LLDB_INVALID_ADDRESS; - m_page_to_free_size = 0; - if (ret.item_buffer_ptr != 0 && ret.item_buffer_ptr != LLDB_INVALID_ADDRESS && ret.item_buffer_size > 0) - { - DataBufferHeap data (ret.item_buffer_size, 0); - if (m_process->ReadMemory (ret.item_buffer_ptr, data.GetBytes(), ret.item_buffer_size, error) && error.Success()) - { - DataExtractor extractor (data.GetBytes(), data.GetByteSize(), m_process->GetByteOrder(), m_process->GetAddressByteSize()); - ItemInfo item = ExtractItemInfoFromBuffer (extractor); - bool stop_id_is_valid = true; - if (item.stop_id == 0) - stop_id_is_valid = false; - return_thread_sp.reset (new HistoryThread (*m_process, - item.enqueuing_thread_id, - item.enqueuing_callstack, - item.stop_id, - stop_id_is_valid)); - return_thread_sp->SetExtendedBacktraceToken (item.item_that_enqueued_this); - return_thread_sp->SetQueueName (item.enqueuing_queue_label.c_str()); - return_thread_sp->SetQueueID (item.enqueuing_queue_serialnum); -// return_thread_sp->SetThreadName (item.enqueuing_thread_label.c_str()); - - m_page_to_free = ret.item_buffer_ptr; - m_page_to_free_size = ret.item_buffer_size; - } +SystemRuntimeMacOSX::GetExtendedBacktraceFromItemRef(lldb::addr_t item_ref) { + ThreadSP return_thread_sp; + + AppleGetItemInfoHandler::GetItemInfoReturnInfo ret; + ThreadSP cur_thread_sp( + m_process->GetThreadList().GetExpressionExecutionThread()); + Error error; + ret = m_get_item_info_handler.GetItemInfo(*cur_thread_sp.get(), item_ref, + m_page_to_free, m_page_to_free_size, + error); + m_page_to_free = LLDB_INVALID_ADDRESS; + m_page_to_free_size = 0; + if (ret.item_buffer_ptr != 0 && ret.item_buffer_ptr != LLDB_INVALID_ADDRESS && + ret.item_buffer_size > 0) { + DataBufferHeap data(ret.item_buffer_size, 0); + if (m_process->ReadMemory(ret.item_buffer_ptr, data.GetBytes(), + ret.item_buffer_size, error) && + error.Success()) { + DataExtractor extractor(data.GetBytes(), data.GetByteSize(), + m_process->GetByteOrder(), + m_process->GetAddressByteSize()); + ItemInfo item = ExtractItemInfoFromBuffer(extractor); + bool stop_id_is_valid = true; + if (item.stop_id == 0) + stop_id_is_valid = false; + return_thread_sp.reset(new HistoryThread( + *m_process, item.enqueuing_thread_id, item.enqueuing_callstack, + item.stop_id, stop_id_is_valid)); + return_thread_sp->SetExtendedBacktraceToken(item.item_that_enqueued_this); + return_thread_sp->SetQueueName(item.enqueuing_queue_label.c_str()); + return_thread_sp->SetQueueID(item.enqueuing_queue_serialnum); + // return_thread_sp->SetThreadName + // (item.enqueuing_thread_label.c_str()); + + m_page_to_free = ret.item_buffer_ptr; + m_page_to_free_size = ret.item_buffer_size; } - return return_thread_sp; + } + return return_thread_sp; } ThreadSP -SystemRuntimeMacOSX::GetExtendedBacktraceForQueueItem (QueueItemSP queue_item_sp, ConstString type) -{ - ThreadSP extended_thread_sp; - if (type != ConstString("libdispatch")) - return extended_thread_sp; - - bool stop_id_is_valid = true; - if (queue_item_sp->GetStopID() == 0) - stop_id_is_valid = false; - - extended_thread_sp.reset (new HistoryThread (*m_process, - queue_item_sp->GetEnqueueingThreadID(), - queue_item_sp->GetEnqueueingBacktrace(), - queue_item_sp->GetStopID(), - stop_id_is_valid)); - extended_thread_sp->SetExtendedBacktraceToken (queue_item_sp->GetItemThatEnqueuedThis()); - extended_thread_sp->SetQueueName (queue_item_sp->GetQueueLabel().c_str()); - extended_thread_sp->SetQueueID (queue_item_sp->GetEnqueueingQueueID()); -// extended_thread_sp->SetThreadName (queue_item_sp->GetThreadLabel().c_str()); - +SystemRuntimeMacOSX::GetExtendedBacktraceForQueueItem(QueueItemSP queue_item_sp, + ConstString type) { + ThreadSP extended_thread_sp; + if (type != ConstString("libdispatch")) return extended_thread_sp; + + bool stop_id_is_valid = true; + if (queue_item_sp->GetStopID() == 0) + stop_id_is_valid = false; + + extended_thread_sp.reset( + new HistoryThread(*m_process, queue_item_sp->GetEnqueueingThreadID(), + queue_item_sp->GetEnqueueingBacktrace(), + queue_item_sp->GetStopID(), stop_id_is_valid)); + extended_thread_sp->SetExtendedBacktraceToken( + queue_item_sp->GetItemThatEnqueuedThis()); + extended_thread_sp->SetQueueName(queue_item_sp->GetQueueLabel().c_str()); + extended_thread_sp->SetQueueID(queue_item_sp->GetEnqueueingQueueID()); + // extended_thread_sp->SetThreadName + // (queue_item_sp->GetThreadLabel().c_str()); + + return extended_thread_sp; } /* Returns true if we were able to get the version / offset information @@ -585,438 +597,439 @@ SystemRuntimeMacOSX::GetExtendedBacktraceForQueueItem (QueueItemSP queue_item_sp * this; the queue_info_version field will be 0. */ -bool -SystemRuntimeMacOSX::BacktraceRecordingHeadersInitialized () -{ - if (m_lib_backtrace_recording_info.queue_info_version != 0) - return true; - - addr_t queue_info_version_address = LLDB_INVALID_ADDRESS; - addr_t queue_info_data_offset_address = LLDB_INVALID_ADDRESS; - addr_t item_info_version_address = LLDB_INVALID_ADDRESS; - addr_t item_info_data_offset_address = LLDB_INVALID_ADDRESS; - Target &target = m_process->GetTarget(); - - - static ConstString introspection_dispatch_queue_info_version ("__introspection_dispatch_queue_info_version"); - SymbolContextList sc_list; - if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType (introspection_dispatch_queue_info_version, eSymbolTypeData, sc_list) > 0) - { - SymbolContext sc; - sc_list.GetContextAtIndex (0, sc); - AddressRange addr_range; - sc.GetAddressRange (eSymbolContextSymbol, 0, false, addr_range); - queue_info_version_address = addr_range.GetBaseAddress().GetLoadAddress(&target); - } - sc_list.Clear(); - - static ConstString introspection_dispatch_queue_info_data_offset ("__introspection_dispatch_queue_info_data_offset"); - if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType (introspection_dispatch_queue_info_data_offset, eSymbolTypeData, sc_list) > 0) - { - SymbolContext sc; - sc_list.GetContextAtIndex (0, sc); - AddressRange addr_range; - sc.GetAddressRange (eSymbolContextSymbol, 0, false, addr_range); - queue_info_data_offset_address = addr_range.GetBaseAddress().GetLoadAddress(&target); - } - sc_list.Clear(); - - static ConstString introspection_dispatch_item_info_version ("__introspection_dispatch_item_info_version"); - if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType (introspection_dispatch_item_info_version, eSymbolTypeData, sc_list) > 0) - { - SymbolContext sc; - sc_list.GetContextAtIndex (0, sc); - AddressRange addr_range; - sc.GetAddressRange (eSymbolContextSymbol, 0, false, addr_range); - item_info_version_address = addr_range.GetBaseAddress().GetLoadAddress(&target); - } - sc_list.Clear(); - - static ConstString introspection_dispatch_item_info_data_offset ("__introspection_dispatch_item_info_data_offset"); - if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType (introspection_dispatch_item_info_data_offset, eSymbolTypeData, sc_list) > 0) - { - SymbolContext sc; - sc_list.GetContextAtIndex (0, sc); - AddressRange addr_range; - sc.GetAddressRange (eSymbolContextSymbol, 0, false, addr_range); - item_info_data_offset_address = addr_range.GetBaseAddress().GetLoadAddress(&target); - } +bool SystemRuntimeMacOSX::BacktraceRecordingHeadersInitialized() { + if (m_lib_backtrace_recording_info.queue_info_version != 0) + return true; - if (queue_info_version_address != LLDB_INVALID_ADDRESS - && queue_info_data_offset_address != LLDB_INVALID_ADDRESS - && item_info_version_address != LLDB_INVALID_ADDRESS - && item_info_data_offset_address != LLDB_INVALID_ADDRESS) - { - Error error; - m_lib_backtrace_recording_info.queue_info_version = m_process->ReadUnsignedIntegerFromMemory (queue_info_version_address, 2, 0, error); - if (error.Success()) - { - m_lib_backtrace_recording_info.queue_info_data_offset = m_process->ReadUnsignedIntegerFromMemory (queue_info_data_offset_address, 2, 0, error); - if (error.Success()) - { - m_lib_backtrace_recording_info.item_info_version = m_process->ReadUnsignedIntegerFromMemory (item_info_version_address, 2, 0, error); - if (error.Success()) - { - m_lib_backtrace_recording_info.item_info_data_offset = m_process->ReadUnsignedIntegerFromMemory (item_info_data_offset_address, 2, 0, error); - if (!error.Success()) - { - m_lib_backtrace_recording_info.queue_info_version = 0; - } - } - else - { - m_lib_backtrace_recording_info.queue_info_version = 0; - } - } - else - { - m_lib_backtrace_recording_info.queue_info_version = 0; - } + addr_t queue_info_version_address = LLDB_INVALID_ADDRESS; + addr_t queue_info_data_offset_address = LLDB_INVALID_ADDRESS; + addr_t item_info_version_address = LLDB_INVALID_ADDRESS; + addr_t item_info_data_offset_address = LLDB_INVALID_ADDRESS; + Target &target = m_process->GetTarget(); + + static ConstString introspection_dispatch_queue_info_version( + "__introspection_dispatch_queue_info_version"); + SymbolContextList sc_list; + if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType( + introspection_dispatch_queue_info_version, eSymbolTypeData, sc_list) > + 0) { + SymbolContext sc; + sc_list.GetContextAtIndex(0, sc); + AddressRange addr_range; + sc.GetAddressRange(eSymbolContextSymbol, 0, false, addr_range); + queue_info_version_address = + addr_range.GetBaseAddress().GetLoadAddress(&target); + } + sc_list.Clear(); + + static ConstString introspection_dispatch_queue_info_data_offset( + "__introspection_dispatch_queue_info_data_offset"); + if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType( + introspection_dispatch_queue_info_data_offset, eSymbolTypeData, + sc_list) > 0) { + SymbolContext sc; + sc_list.GetContextAtIndex(0, sc); + AddressRange addr_range; + sc.GetAddressRange(eSymbolContextSymbol, 0, false, addr_range); + queue_info_data_offset_address = + addr_range.GetBaseAddress().GetLoadAddress(&target); + } + sc_list.Clear(); + + static ConstString introspection_dispatch_item_info_version( + "__introspection_dispatch_item_info_version"); + if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType( + introspection_dispatch_item_info_version, eSymbolTypeData, sc_list) > + 0) { + SymbolContext sc; + sc_list.GetContextAtIndex(0, sc); + AddressRange addr_range; + sc.GetAddressRange(eSymbolContextSymbol, 0, false, addr_range); + item_info_version_address = + addr_range.GetBaseAddress().GetLoadAddress(&target); + } + sc_list.Clear(); + + static ConstString introspection_dispatch_item_info_data_offset( + "__introspection_dispatch_item_info_data_offset"); + if (m_process->GetTarget().GetImages().FindSymbolsWithNameAndType( + introspection_dispatch_item_info_data_offset, eSymbolTypeData, + sc_list) > 0) { + SymbolContext sc; + sc_list.GetContextAtIndex(0, sc); + AddressRange addr_range; + sc.GetAddressRange(eSymbolContextSymbol, 0, false, addr_range); + item_info_data_offset_address = + addr_range.GetBaseAddress().GetLoadAddress(&target); + } + + if (queue_info_version_address != LLDB_INVALID_ADDRESS && + queue_info_data_offset_address != LLDB_INVALID_ADDRESS && + item_info_version_address != LLDB_INVALID_ADDRESS && + item_info_data_offset_address != LLDB_INVALID_ADDRESS) { + Error error; + m_lib_backtrace_recording_info.queue_info_version = + m_process->ReadUnsignedIntegerFromMemory(queue_info_version_address, 2, + 0, error); + if (error.Success()) { + m_lib_backtrace_recording_info.queue_info_data_offset = + m_process->ReadUnsignedIntegerFromMemory( + queue_info_data_offset_address, 2, 0, error); + if (error.Success()) { + m_lib_backtrace_recording_info.item_info_version = + m_process->ReadUnsignedIntegerFromMemory(item_info_version_address, + 2, 0, error); + if (error.Success()) { + m_lib_backtrace_recording_info.item_info_data_offset = + m_process->ReadUnsignedIntegerFromMemory( + item_info_data_offset_address, 2, 0, error); + if (!error.Success()) { + m_lib_backtrace_recording_info.queue_info_version = 0; + } + } else { + m_lib_backtrace_recording_info.queue_info_version = 0; } + } else { + m_lib_backtrace_recording_info.queue_info_version = 0; + } } + } - return m_lib_backtrace_recording_info.queue_info_version != 0; + return m_lib_backtrace_recording_info.queue_info_version != 0; } const std::vector<ConstString> & -SystemRuntimeMacOSX::GetExtendedBacktraceTypes () -{ - if (m_types.size () == 0) - { - m_types.push_back(ConstString("libdispatch")); - // We could have pthread as another type in the future if we have a way of - // gathering that information & it's useful to distinguish between them. - } - return m_types; +SystemRuntimeMacOSX::GetExtendedBacktraceTypes() { + if (m_types.size() == 0) { + m_types.push_back(ConstString("libdispatch")); + // We could have pthread as another type in the future if we have a way of + // gathering that information & it's useful to distinguish between them. + } + return m_types; } -void -SystemRuntimeMacOSX::PopulateQueueList (lldb_private::QueueList &queue_list) -{ - if (BacktraceRecordingHeadersInitialized()) - { - AppleGetQueuesHandler::GetQueuesReturnInfo queue_info_pointer; - ThreadSP cur_thread_sp (m_process->GetThreadList().GetExpressionExecutionThread()); - if (cur_thread_sp) - { - Error error; - queue_info_pointer = m_get_queues_handler.GetCurrentQueues (*cur_thread_sp.get(), m_page_to_free, m_page_to_free_size, error); - m_page_to_free = LLDB_INVALID_ADDRESS; - m_page_to_free_size = 0; - if (error.Success()) - { - - if (queue_info_pointer.count > 0 - && queue_info_pointer.queues_buffer_size > 0 - && queue_info_pointer.queues_buffer_ptr != 0 - && queue_info_pointer.queues_buffer_ptr != LLDB_INVALID_ADDRESS) - { - PopulateQueuesUsingLibBTR (queue_info_pointer.queues_buffer_ptr, queue_info_pointer.queues_buffer_size, queue_info_pointer.count, queue_list); - } - } +void SystemRuntimeMacOSX::PopulateQueueList( + lldb_private::QueueList &queue_list) { + if (BacktraceRecordingHeadersInitialized()) { + AppleGetQueuesHandler::GetQueuesReturnInfo queue_info_pointer; + ThreadSP cur_thread_sp( + m_process->GetThreadList().GetExpressionExecutionThread()); + if (cur_thread_sp) { + Error error; + queue_info_pointer = m_get_queues_handler.GetCurrentQueues( + *cur_thread_sp.get(), m_page_to_free, m_page_to_free_size, error); + m_page_to_free = LLDB_INVALID_ADDRESS; + m_page_to_free_size = 0; + if (error.Success()) { + + if (queue_info_pointer.count > 0 && + queue_info_pointer.queues_buffer_size > 0 && + queue_info_pointer.queues_buffer_ptr != 0 && + queue_info_pointer.queues_buffer_ptr != LLDB_INVALID_ADDRESS) { + PopulateQueuesUsingLibBTR(queue_info_pointer.queues_buffer_ptr, + queue_info_pointer.queues_buffer_size, + queue_info_pointer.count, queue_list); } + } } - - // We either didn't have libBacktraceRecording (and need to create the queues list based on threads) - // or we did get the queues list from libBacktraceRecording but some special queues may not be - // included in its information. This is needed because libBacktraceRecording - // will only list queues with pending or running items by default - but the magic com.apple.main-thread - // queue on thread 1 is always around. - - for (ThreadSP thread_sp : m_process->Threads()) - { - if (thread_sp->GetAssociatedWithLibdispatchQueue () != eLazyBoolNo) - { - if (thread_sp->GetQueueID() != LLDB_INVALID_QUEUE_ID) - { - if (queue_list.FindQueueByID (thread_sp->GetQueueID()).get() == NULL) - { - QueueSP queue_sp (new Queue(m_process->shared_from_this(), thread_sp->GetQueueID(), thread_sp->GetQueueName())); - if (thread_sp->ThreadHasQueueInformation ()) - { - queue_sp->SetKind (thread_sp->GetQueueKind ()); - queue_sp->SetLibdispatchQueueAddress (thread_sp->GetQueueLibdispatchQueueAddress()); - queue_list.AddQueue (queue_sp); - } - else - { - queue_sp->SetKind (GetQueueKind (thread_sp->GetQueueLibdispatchQueueAddress())); - queue_sp->SetLibdispatchQueueAddress (thread_sp->GetQueueLibdispatchQueueAddress()); - queue_list.AddQueue (queue_sp); - } - } - } + } + + // We either didn't have libBacktraceRecording (and need to create the queues + // list based on threads) + // or we did get the queues list from libBacktraceRecording but some special + // queues may not be + // included in its information. This is needed because libBacktraceRecording + // will only list queues with pending or running items by default - but the + // magic com.apple.main-thread + // queue on thread 1 is always around. + + for (ThreadSP thread_sp : m_process->Threads()) { + if (thread_sp->GetAssociatedWithLibdispatchQueue() != eLazyBoolNo) { + if (thread_sp->GetQueueID() != LLDB_INVALID_QUEUE_ID) { + if (queue_list.FindQueueByID(thread_sp->GetQueueID()).get() == NULL) { + QueueSP queue_sp(new Queue(m_process->shared_from_this(), + thread_sp->GetQueueID(), + thread_sp->GetQueueName())); + if (thread_sp->ThreadHasQueueInformation()) { + queue_sp->SetKind(thread_sp->GetQueueKind()); + queue_sp->SetLibdispatchQueueAddress( + thread_sp->GetQueueLibdispatchQueueAddress()); + queue_list.AddQueue(queue_sp); + } else { + queue_sp->SetKind( + GetQueueKind(thread_sp->GetQueueLibdispatchQueueAddress())); + queue_sp->SetLibdispatchQueueAddress( + thread_sp->GetQueueLibdispatchQueueAddress()); + queue_list.AddQueue(queue_sp); + } } + } } + } } -// Returns either an array of introspection_dispatch_item_info_ref's for the pending items on -// a queue or an array introspection_dispatch_item_info_ref's and code addresses for the -// pending items on a queue. The information about each of these pending items then needs to +// Returns either an array of introspection_dispatch_item_info_ref's for the +// pending items on +// a queue or an array introspection_dispatch_item_info_ref's and code addresses +// for the +// pending items on a queue. The information about each of these pending items +// then needs to // be fetched individually by passing the ref to libBacktraceRecording. SystemRuntimeMacOSX::PendingItemsForQueue -SystemRuntimeMacOSX::GetPendingItemRefsForQueue (lldb::addr_t queue) -{ - PendingItemsForQueue pending_item_refs; - AppleGetPendingItemsHandler::GetPendingItemsReturnInfo pending_items_pointer; - ThreadSP cur_thread_sp (m_process->GetThreadList().GetExpressionExecutionThread()); - if (cur_thread_sp) - { - Error error; - pending_items_pointer = m_get_pending_items_handler.GetPendingItems (*cur_thread_sp.get(), queue, m_page_to_free, m_page_to_free_size, error); - m_page_to_free = LLDB_INVALID_ADDRESS; - m_page_to_free_size = 0; - if (error.Success()) - { - if (pending_items_pointer.count > 0 - && pending_items_pointer.items_buffer_size > 0 - && pending_items_pointer.items_buffer_ptr != 0 - && pending_items_pointer.items_buffer_ptr != LLDB_INVALID_ADDRESS) - { - DataBufferHeap data (pending_items_pointer.items_buffer_size, 0); - if (m_process->ReadMemory (pending_items_pointer.items_buffer_ptr, data.GetBytes(), pending_items_pointer.items_buffer_size, error)) - { - DataExtractor extractor (data.GetBytes(), data.GetByteSize(), m_process->GetByteOrder(), m_process->GetAddressByteSize()); - - // We either have an array of - // void* item_ref - // (old style) or we have a structure returned which looks like - // - // struct introspection_dispatch_pending_item_info_s { - // void *item_ref; - // void *function_or_block; - // }; - // - // struct introspection_dispatch_pending_items_array_s { - // uint32_t version; - // uint32_t size_of_item_info; - // introspection_dispatch_pending_item_info_s items[]; - // } - - offset_t offset = 0; - int i = 0; - uint32_t version = extractor.GetU32(&offset); - if (version == 1) - { - pending_item_refs.new_style = true; - uint32_t item_size = extractor.GetU32(&offset); - uint32_t start_of_array_offset = offset; - while (offset < pending_items_pointer.items_buffer_size && - static_cast<size_t>(i) < pending_items_pointer.count) - { - offset = start_of_array_offset + (i * item_size); - ItemRefAndCodeAddress item; - item.item_ref = extractor.GetPointer (&offset); - item.code_address = extractor.GetPointer (&offset); - pending_item_refs.item_refs_and_code_addresses.push_back (item); - i++; - } - } - else - { - offset = 0; - pending_item_refs.new_style = false; - while (offset < pending_items_pointer.items_buffer_size && - static_cast<size_t>(i) < pending_items_pointer.count) - { - ItemRefAndCodeAddress item; - item.item_ref = extractor.GetPointer (&offset); - item.code_address = LLDB_INVALID_ADDRESS; - pending_item_refs.item_refs_and_code_addresses.push_back (item); - i++; - } - } - } - m_page_to_free = pending_items_pointer.items_buffer_ptr; - m_page_to_free_size = pending_items_pointer.items_buffer_size; +SystemRuntimeMacOSX::GetPendingItemRefsForQueue(lldb::addr_t queue) { + PendingItemsForQueue pending_item_refs; + AppleGetPendingItemsHandler::GetPendingItemsReturnInfo pending_items_pointer; + ThreadSP cur_thread_sp( + m_process->GetThreadList().GetExpressionExecutionThread()); + if (cur_thread_sp) { + Error error; + pending_items_pointer = m_get_pending_items_handler.GetPendingItems( + *cur_thread_sp.get(), queue, m_page_to_free, m_page_to_free_size, + error); + m_page_to_free = LLDB_INVALID_ADDRESS; + m_page_to_free_size = 0; + if (error.Success()) { + if (pending_items_pointer.count > 0 && + pending_items_pointer.items_buffer_size > 0 && + pending_items_pointer.items_buffer_ptr != 0 && + pending_items_pointer.items_buffer_ptr != LLDB_INVALID_ADDRESS) { + DataBufferHeap data(pending_items_pointer.items_buffer_size, 0); + if (m_process->ReadMemory( + pending_items_pointer.items_buffer_ptr, data.GetBytes(), + pending_items_pointer.items_buffer_size, error)) { + DataExtractor extractor(data.GetBytes(), data.GetByteSize(), + m_process->GetByteOrder(), + m_process->GetAddressByteSize()); + + // We either have an array of + // void* item_ref + // (old style) or we have a structure returned which looks like + // + // struct introspection_dispatch_pending_item_info_s { + // void *item_ref; + // void *function_or_block; + // }; + // + // struct introspection_dispatch_pending_items_array_s { + // uint32_t version; + // uint32_t size_of_item_info; + // introspection_dispatch_pending_item_info_s items[]; + // } + + offset_t offset = 0; + int i = 0; + uint32_t version = extractor.GetU32(&offset); + if (version == 1) { + pending_item_refs.new_style = true; + uint32_t item_size = extractor.GetU32(&offset); + uint32_t start_of_array_offset = offset; + while (offset < pending_items_pointer.items_buffer_size && + static_cast<size_t>(i) < pending_items_pointer.count) { + offset = start_of_array_offset + (i * item_size); + ItemRefAndCodeAddress item; + item.item_ref = extractor.GetPointer(&offset); + item.code_address = extractor.GetPointer(&offset); + pending_item_refs.item_refs_and_code_addresses.push_back(item); + i++; + } + } else { + offset = 0; + pending_item_refs.new_style = false; + while (offset < pending_items_pointer.items_buffer_size && + static_cast<size_t>(i) < pending_items_pointer.count) { + ItemRefAndCodeAddress item; + item.item_ref = extractor.GetPointer(&offset); + item.code_address = LLDB_INVALID_ADDRESS; + pending_item_refs.item_refs_and_code_addresses.push_back(item); + i++; } + } } + m_page_to_free = pending_items_pointer.items_buffer_ptr; + m_page_to_free_size = pending_items_pointer.items_buffer_size; + } } - return pending_item_refs; + } + return pending_item_refs; } - - -void -SystemRuntimeMacOSX::PopulatePendingItemsForQueue (Queue *queue) -{ - if (BacktraceRecordingHeadersInitialized()) - { - PendingItemsForQueue pending_item_refs = GetPendingItemRefsForQueue (queue->GetLibdispatchQueueAddress()); - for (ItemRefAndCodeAddress pending_item : pending_item_refs.item_refs_and_code_addresses) - { - Address addr; - m_process->GetTarget().ResolveLoadAddress (pending_item.code_address, addr); - QueueItemSP queue_item_sp (new QueueItem (queue->shared_from_this(), m_process->shared_from_this(), pending_item.item_ref, addr)); - queue->PushPendingQueueItem (queue_item_sp); - } +void SystemRuntimeMacOSX::PopulatePendingItemsForQueue(Queue *queue) { + if (BacktraceRecordingHeadersInitialized()) { + PendingItemsForQueue pending_item_refs = + GetPendingItemRefsForQueue(queue->GetLibdispatchQueueAddress()); + for (ItemRefAndCodeAddress pending_item : + pending_item_refs.item_refs_and_code_addresses) { + Address addr; + m_process->GetTarget().ResolveLoadAddress(pending_item.code_address, + addr); + QueueItemSP queue_item_sp(new QueueItem(queue->shared_from_this(), + m_process->shared_from_this(), + pending_item.item_ref, addr)); + queue->PushPendingQueueItem(queue_item_sp); } + } } -void -SystemRuntimeMacOSX::CompleteQueueItem (QueueItem *queue_item, addr_t item_ref) -{ - AppleGetItemInfoHandler::GetItemInfoReturnInfo ret; - - ThreadSP cur_thread_sp (m_process->GetThreadList().GetExpressionExecutionThread()); - Error error; - ret = m_get_item_info_handler.GetItemInfo (*cur_thread_sp.get(), item_ref, m_page_to_free, m_page_to_free_size, error); - m_page_to_free = LLDB_INVALID_ADDRESS; - m_page_to_free_size = 0; - if (ret.item_buffer_ptr != 0 && ret.item_buffer_ptr != LLDB_INVALID_ADDRESS && ret.item_buffer_size > 0) - { - DataBufferHeap data (ret.item_buffer_size, 0); - if (m_process->ReadMemory (ret.item_buffer_ptr, data.GetBytes(), ret.item_buffer_size, error) && error.Success()) - { - DataExtractor extractor (data.GetBytes(), data.GetByteSize(), m_process->GetByteOrder(), m_process->GetAddressByteSize()); - ItemInfo item = ExtractItemInfoFromBuffer (extractor); - queue_item->SetItemThatEnqueuedThis (item.item_that_enqueued_this); - queue_item->SetEnqueueingThreadID (item.enqueuing_thread_id); - queue_item->SetEnqueueingQueueID (item.enqueuing_queue_serialnum); - queue_item->SetStopID (item.stop_id); - queue_item->SetEnqueueingBacktrace (item.enqueuing_callstack); - queue_item->SetThreadLabel (item.enqueuing_thread_label); - queue_item->SetQueueLabel (item.enqueuing_queue_label); - queue_item->SetTargetQueueLabel (item.target_queue_label); - } - m_page_to_free = ret.item_buffer_ptr; - m_page_to_free_size = ret.item_buffer_size; +void SystemRuntimeMacOSX::CompleteQueueItem(QueueItem *queue_item, + addr_t item_ref) { + AppleGetItemInfoHandler::GetItemInfoReturnInfo ret; + + ThreadSP cur_thread_sp( + m_process->GetThreadList().GetExpressionExecutionThread()); + Error error; + ret = m_get_item_info_handler.GetItemInfo(*cur_thread_sp.get(), item_ref, + m_page_to_free, m_page_to_free_size, + error); + m_page_to_free = LLDB_INVALID_ADDRESS; + m_page_to_free_size = 0; + if (ret.item_buffer_ptr != 0 && ret.item_buffer_ptr != LLDB_INVALID_ADDRESS && + ret.item_buffer_size > 0) { + DataBufferHeap data(ret.item_buffer_size, 0); + if (m_process->ReadMemory(ret.item_buffer_ptr, data.GetBytes(), + ret.item_buffer_size, error) && + error.Success()) { + DataExtractor extractor(data.GetBytes(), data.GetByteSize(), + m_process->GetByteOrder(), + m_process->GetAddressByteSize()); + ItemInfo item = ExtractItemInfoFromBuffer(extractor); + queue_item->SetItemThatEnqueuedThis(item.item_that_enqueued_this); + queue_item->SetEnqueueingThreadID(item.enqueuing_thread_id); + queue_item->SetEnqueueingQueueID(item.enqueuing_queue_serialnum); + queue_item->SetStopID(item.stop_id); + queue_item->SetEnqueueingBacktrace(item.enqueuing_callstack); + queue_item->SetThreadLabel(item.enqueuing_thread_label); + queue_item->SetQueueLabel(item.enqueuing_queue_label); + queue_item->SetTargetQueueLabel(item.target_queue_label); } + m_page_to_free = ret.item_buffer_ptr; + m_page_to_free_size = ret.item_buffer_size; + } } -void -SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR (lldb::addr_t queues_buffer, uint64_t queues_buffer_size, - uint64_t count, lldb_private::QueueList &queue_list) -{ - Error error; - DataBufferHeap data (queues_buffer_size, 0); - Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_SYSTEM_RUNTIME)); - if (m_process->ReadMemory (queues_buffer, data.GetBytes(), queues_buffer_size, error) == queues_buffer_size && error.Success()) - { - // We've read the information out of inferior memory; free it on the next call we make - m_page_to_free = queues_buffer; - m_page_to_free_size = queues_buffer_size; - - DataExtractor extractor (data.GetBytes(), data.GetByteSize(), m_process->GetByteOrder(), m_process->GetAddressByteSize()); - offset_t offset = 0; - uint64_t queues_read = 0; - - // The information about the queues is stored in this format (v1): - // typedef struct introspection_dispatch_queue_info_s { - // uint32_t offset_to_next; - // dispatch_queue_t queue; - // uint64_t serialnum; // queue's serialnum in the process, as provided by libdispatch - // uint32_t running_work_items_count; - // uint32_t pending_work_items_count; - // - // char data[]; // Starting here, we have variable-length data: - // // char queue_label[]; - // } introspection_dispatch_queue_info_s; - - while (queues_read < count && offset < queues_buffer_size) - { - offset_t start_of_this_item = offset; - - uint32_t offset_to_next = extractor.GetU32 (&offset); - - offset += 4; // Skip over the 4 bytes of reserved space - addr_t queue = extractor.GetPointer (&offset); - uint64_t serialnum = extractor.GetU64 (&offset); - uint32_t running_work_items_count = extractor.GetU32 (&offset); - uint32_t pending_work_items_count = extractor.GetU32 (&offset); - - // Read the first field of the variable length data - offset = start_of_this_item + m_lib_backtrace_recording_info.queue_info_data_offset; - const char *queue_label = extractor.GetCStr (&offset); - if (queue_label == NULL) - queue_label = ""; - - offset_t start_of_next_item = start_of_this_item + offset_to_next; - offset = start_of_next_item; - - if (log) - log->Printf ("SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR added queue with dispatch_queue_t 0x%" PRIx64 ", serial number 0x%" PRIx64 ", running items %d, pending items %d, name '%s'", queue, serialnum, running_work_items_count, pending_work_items_count, queue_label); - - QueueSP queue_sp (new Queue (m_process->shared_from_this(), serialnum, queue_label)); - queue_sp->SetNumRunningWorkItems (running_work_items_count); - queue_sp->SetNumPendingWorkItems (pending_work_items_count); - queue_sp->SetLibdispatchQueueAddress (queue); - queue_sp->SetKind (GetQueueKind (queue)); - queue_list.AddQueue (queue_sp); - queues_read++; - } +void SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR( + lldb::addr_t queues_buffer, uint64_t queues_buffer_size, uint64_t count, + lldb_private::QueueList &queue_list) { + Error error; + DataBufferHeap data(queues_buffer_size, 0); + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_SYSTEM_RUNTIME)); + if (m_process->ReadMemory(queues_buffer, data.GetBytes(), queues_buffer_size, + error) == queues_buffer_size && + error.Success()) { + // We've read the information out of inferior memory; free it on the next + // call we make + m_page_to_free = queues_buffer; + m_page_to_free_size = queues_buffer_size; + + DataExtractor extractor(data.GetBytes(), data.GetByteSize(), + m_process->GetByteOrder(), + m_process->GetAddressByteSize()); + offset_t offset = 0; + uint64_t queues_read = 0; + + // The information about the queues is stored in this format (v1): + // typedef struct introspection_dispatch_queue_info_s { + // uint32_t offset_to_next; + // dispatch_queue_t queue; + // uint64_t serialnum; // queue's serialnum in the process, as + // provided by libdispatch + // uint32_t running_work_items_count; + // uint32_t pending_work_items_count; + // + // char data[]; // Starting here, we have variable-length data: + // // char queue_label[]; + // } introspection_dispatch_queue_info_s; + + while (queues_read < count && offset < queues_buffer_size) { + offset_t start_of_this_item = offset; + + uint32_t offset_to_next = extractor.GetU32(&offset); + + offset += 4; // Skip over the 4 bytes of reserved space + addr_t queue = extractor.GetPointer(&offset); + uint64_t serialnum = extractor.GetU64(&offset); + uint32_t running_work_items_count = extractor.GetU32(&offset); + uint32_t pending_work_items_count = extractor.GetU32(&offset); + + // Read the first field of the variable length data + offset = start_of_this_item + + m_lib_backtrace_recording_info.queue_info_data_offset; + const char *queue_label = extractor.GetCStr(&offset); + if (queue_label == NULL) + queue_label = ""; + + offset_t start_of_next_item = start_of_this_item + offset_to_next; + offset = start_of_next_item; + + if (log) + log->Printf("SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR added " + "queue with dispatch_queue_t 0x%" PRIx64 + ", serial number 0x%" PRIx64 + ", running items %d, pending items %d, name '%s'", + queue, serialnum, running_work_items_count, + pending_work_items_count, queue_label); + + QueueSP queue_sp( + new Queue(m_process->shared_from_this(), serialnum, queue_label)); + queue_sp->SetNumRunningWorkItems(running_work_items_count); + queue_sp->SetNumPendingWorkItems(pending_work_items_count); + queue_sp->SetLibdispatchQueueAddress(queue); + queue_sp->SetKind(GetQueueKind(queue)); + queue_list.AddQueue(queue_sp); + queues_read++; } + } } -SystemRuntimeMacOSX::ItemInfo -SystemRuntimeMacOSX::ExtractItemInfoFromBuffer (lldb_private::DataExtractor &extractor) -{ - ItemInfo item; +SystemRuntimeMacOSX::ItemInfo SystemRuntimeMacOSX::ExtractItemInfoFromBuffer( + lldb_private::DataExtractor &extractor) { + ItemInfo item; - offset_t offset = 0; - - item.item_that_enqueued_this = extractor.GetPointer (&offset); - item.function_or_block = extractor.GetPointer (&offset); - item.enqueuing_thread_id = extractor.GetU64 (&offset); - item.enqueuing_queue_serialnum = extractor.GetU64 (&offset); - item.target_queue_serialnum = extractor.GetU64 (&offset); - item.enqueuing_callstack_frame_count = extractor.GetU32 (&offset); - item.stop_id = extractor.GetU32 (&offset); - - offset = m_lib_backtrace_recording_info.item_info_data_offset; - - for (uint32_t i = 0; i < item.enqueuing_callstack_frame_count; i++) - { - item.enqueuing_callstack.push_back (extractor.GetPointer (&offset)); - } - item.enqueuing_thread_label = extractor.GetCStr (&offset); - item.enqueuing_queue_label = extractor.GetCStr (&offset); - item.target_queue_label = extractor.GetCStr (&offset); + offset_t offset = 0; - return item; -} + item.item_that_enqueued_this = extractor.GetPointer(&offset); + item.function_or_block = extractor.GetPointer(&offset); + item.enqueuing_thread_id = extractor.GetU64(&offset); + item.enqueuing_queue_serialnum = extractor.GetU64(&offset); + item.target_queue_serialnum = extractor.GetU64(&offset); + item.enqueuing_callstack_frame_count = extractor.GetU32(&offset); + item.stop_id = extractor.GetU32(&offset); -void -SystemRuntimeMacOSX::Initialize() -{ - PluginManager::RegisterPlugin (GetPluginNameStatic(), - GetPluginDescriptionStatic(), - CreateInstance); -} + offset = m_lib_backtrace_recording_info.item_info_data_offset; -void -SystemRuntimeMacOSX::Terminate() -{ - PluginManager::UnregisterPlugin (CreateInstance); + for (uint32_t i = 0; i < item.enqueuing_callstack_frame_count; i++) { + item.enqueuing_callstack.push_back(extractor.GetPointer(&offset)); + } + item.enqueuing_thread_label = extractor.GetCStr(&offset); + item.enqueuing_queue_label = extractor.GetCStr(&offset); + item.target_queue_label = extractor.GetCStr(&offset); + + return item; } +void SystemRuntimeMacOSX::Initialize() { + PluginManager::RegisterPlugin(GetPluginNameStatic(), + GetPluginDescriptionStatic(), CreateInstance); +} -lldb_private::ConstString -SystemRuntimeMacOSX::GetPluginNameStatic() -{ - static ConstString g_name("systemruntime-macosx"); - return g_name; +void SystemRuntimeMacOSX::Terminate() { + PluginManager::UnregisterPlugin(CreateInstance); } -const char * -SystemRuntimeMacOSX::GetPluginDescriptionStatic() -{ - return "System runtime plugin for Mac OS X native libraries."; +lldb_private::ConstString SystemRuntimeMacOSX::GetPluginNameStatic() { + static ConstString g_name("systemruntime-macosx"); + return g_name; } +const char *SystemRuntimeMacOSX::GetPluginDescriptionStatic() { + return "System runtime plugin for Mac OS X native libraries."; +} //------------------------------------------------------------------ // PluginInterface protocol //------------------------------------------------------------------ -lldb_private::ConstString -SystemRuntimeMacOSX::GetPluginName() -{ - return GetPluginNameStatic(); +lldb_private::ConstString SystemRuntimeMacOSX::GetPluginName() { + return GetPluginNameStatic(); } -uint32_t -SystemRuntimeMacOSX::GetPluginVersion() -{ - return 1; -} +uint32_t SystemRuntimeMacOSX::GetPluginVersion() { return 1; } |