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Diffstat (limited to 'source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h')
| -rw-r--r-- | source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h b/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h new file mode 100644 index 0000000..5976bed --- /dev/null +++ b/source/Plugins/SystemRuntime/MacOSX/SystemRuntimeMacOSX.h @@ -0,0 +1,336 @@ +//===-- SystemRuntimeMacOSX.h -----------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef liblldb_SystemRuntimeMacOSX_h_ +#define liblldb_SystemRuntimeMacOSX_h_ + +// C Includes +// C++ Includes +#include <vector> +#include <string> + +// Other libraries and framework include +// Project includes +#include "lldb/Target/SystemRuntime.h" +#include "lldb/Core/ConstString.h" +#include "lldb/Core/ModuleList.h" +#include "lldb/Core/StructuredData.h" +#include "lldb/Core/UUID.h" +#include "lldb/Host/FileSpec.h" +#include "lldb/Host/Mutex.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/QueueItem.h" + +#include "AppleGetItemInfoHandler.h" +#include "AppleGetQueuesHandler.h" +#include "AppleGetPendingItemsHandler.h" +#include "AppleGetThreadItemInfoHandler.h" + +class SystemRuntimeMacOSX : public lldb_private::SystemRuntime +{ +public: + SystemRuntimeMacOSX(lldb_private::Process *process); + + ~SystemRuntimeMacOSX() override; + + //------------------------------------------------------------------ + // Static Functions + //------------------------------------------------------------------ + static void + Initialize(); + + static void + Terminate(); + + static lldb_private::ConstString + GetPluginNameStatic(); + + static const char * + GetPluginDescriptionStatic(); + + static lldb_private::SystemRuntime * + CreateInstance (lldb_private::Process *process); + + //------------------------------------------------------------------ + // instance methods + //------------------------------------------------------------------ + + void + Clear(bool clear_process); + + void + Detach() override; + + const std::vector<lldb_private::ConstString> & + GetExtendedBacktraceTypes() override; + + lldb::ThreadSP + GetExtendedBacktraceThread(lldb::ThreadSP thread, lldb_private::ConstString type) override; + + lldb::ThreadSP + GetExtendedBacktraceForQueueItem(lldb::QueueItemSP queue_item_sp, + lldb_private::ConstString type) override; + + lldb::ThreadSP + GetExtendedBacktraceFromItemRef (lldb::addr_t item_ref); + + void + PopulateQueueList(lldb_private::QueueList &queue_list) override; + + void + PopulateQueuesUsingLibBTR (lldb::addr_t queues_buffer, uint64_t queues_buffer_size, uint64_t count, lldb_private::QueueList &queue_list); + + void + PopulatePendingQueuesUsingLibBTR (lldb::addr_t items_buffer, uint64_t items_buffer_size, uint64_t count, lldb_private::Queue *queue); + + std::string + GetQueueNameFromThreadQAddress(lldb::addr_t dispatch_qaddr) override; + + lldb::queue_id_t + GetQueueIDFromThreadQAddress(lldb::addr_t dispatch_qaddr) override; + + lldb::addr_t + GetLibdispatchQueueAddressFromThreadQAddress(lldb::addr_t dispatch_qaddr) override; + + void + PopulatePendingItemsForQueue(lldb_private::Queue *queue) override; + + void + CompleteQueueItem(lldb_private::QueueItem *queue_item, lldb::addr_t item_ref) override; + + virtual lldb::QueueKind + GetQueueKind (lldb::addr_t dispatch_queue_addr); + + void + AddThreadExtendedInfoPacketHints(lldb_private::StructuredData::ObjectSP dict) override; + + bool + SafeToCallFunctionsOnThisThread(lldb::ThreadSP thread_sp) override; + + //------------------------------------------------------------------ + // PluginInterface protocol + //------------------------------------------------------------------ + lldb_private::ConstString + GetPluginName() override; + + uint32_t + GetPluginVersion() override; + +protected: + lldb::user_id_t m_break_id; + mutable lldb_private::Mutex m_mutex; + +private: + struct libBacktraceRecording_info { + uint16_t queue_info_version; + uint16_t queue_info_data_offset; + uint16_t item_info_version; + uint16_t item_info_data_offset; + + libBacktraceRecording_info () : + queue_info_version(0), + queue_info_data_offset(0), + item_info_version(0), + item_info_data_offset(0) {} + }; + + // A structure which reflects the data recorded in the + // libBacktraceRecording introspection_dispatch_item_info_s. + struct ItemInfo { + lldb::addr_t item_that_enqueued_this; + lldb::addr_t function_or_block; + uint64_t enqueuing_thread_id; + uint64_t enqueuing_queue_serialnum; + uint64_t target_queue_serialnum; + uint32_t enqueuing_callstack_frame_count; + uint32_t stop_id; + std::vector<lldb::addr_t> enqueuing_callstack; + std::string enqueuing_thread_label; + std::string enqueuing_queue_label; + std::string target_queue_label; + }; + + // The offsets of different fields of the dispatch_queue_t structure in + // a thread/queue process. + // Based on libdispatch src/queue_private.h, struct dispatch_queue_offsets_s + // With dqo_version 1-3, the dqo_label field is a per-queue value and cannot be cached. + // With dqo_version 4 (Mac OS X 10.9 / iOS 7), dqo_label is a constant value that can be cached. + struct LibdispatchOffsets + { + uint16_t dqo_version; + uint16_t dqo_label; + uint16_t dqo_label_size; + uint16_t dqo_flags; + uint16_t dqo_flags_size; + uint16_t dqo_serialnum; + uint16_t dqo_serialnum_size; + uint16_t dqo_width; + uint16_t dqo_width_size; + uint16_t dqo_running; + uint16_t dqo_running_size; + + uint16_t dqo_suspend_cnt; // version 5 and later, starting with Mac OS X 10.10/iOS 8 + uint16_t dqo_suspend_cnt_size; // version 5 and later, starting with Mac OS X 10.10/iOS 8 + uint16_t dqo_target_queue; // version 5 and later, starting with Mac OS X 10.10/iOS 8 + uint16_t dqo_target_queue_size; // version 5 and later, starting with Mac OS X 10.10/iOS 8 + uint16_t dqo_priority; // version 5 and later, starting with Mac OS X 10.10/iOS 8 + uint16_t dqo_priority_size; // version 5 and later, starting with Mac OS X 10.10/iOS 8 + + LibdispatchOffsets () + { + dqo_version = UINT16_MAX; + dqo_flags = UINT16_MAX; + dqo_serialnum = UINT16_MAX; + dqo_label = UINT16_MAX; + dqo_width = UINT16_MAX; + dqo_running = UINT16_MAX; + dqo_suspend_cnt = UINT16_MAX; + dqo_target_queue = UINT16_MAX; + dqo_target_queue = UINT16_MAX; + dqo_priority = UINT16_MAX; + } + + bool + IsValid () + { + return dqo_version != UINT16_MAX; + } + + bool + LabelIsValid () + { + return dqo_label != UINT16_MAX; + } + }; + + struct LibdispatchVoucherOffsets + { + uint16_t vo_version; + uint16_t vo_activity_ids_count; + uint16_t vo_activity_ids_count_size; + uint16_t vo_activity_ids_array; + uint16_t vo_activity_ids_array_entry_size; + + LibdispatchVoucherOffsets () : + vo_version (UINT16_MAX), + vo_activity_ids_count (UINT16_MAX), + vo_activity_ids_count_size (UINT16_MAX), + vo_activity_ids_array (UINT16_MAX), + vo_activity_ids_array_entry_size (UINT16_MAX) + { } + + bool IsValid () { return vo_version != UINT16_MAX; } + }; + + struct LibdispatchTSDIndexes + { + uint16_t dti_version; + uint64_t dti_queue_index; + uint64_t dti_voucher_index; + uint64_t dti_qos_class_index; + + LibdispatchTSDIndexes () : + dti_version (UINT16_MAX), + dti_queue_index (UINT64_MAX), + dti_voucher_index (UINT64_MAX), + dti_qos_class_index (UINT64_MAX) + { } + + bool IsValid () { return dti_version != UINT16_MAX; } + }; + + struct LibpthreadOffsets + { + uint16_t plo_version; + uint16_t plo_pthread_tsd_base_offset; + uint16_t plo_pthread_tsd_base_address_offset; + uint16_t plo_pthread_tsd_entry_size; + + LibpthreadOffsets () : + plo_version (UINT16_MAX), + plo_pthread_tsd_base_offset (UINT16_MAX), + plo_pthread_tsd_base_address_offset (UINT16_MAX), + plo_pthread_tsd_entry_size (UINT16_MAX) + { + } + + bool IsValid () + { + return plo_version != UINT16_MAX; + } + }; + + // The libBacktraceRecording function __introspection_dispatch_queue_get_pending_items has + // two forms. It can either return a simple array of item_refs (void *) size or it can return + // a header with uint32_t version, a uint32_t size of item, and then an array of item_refs (void*) + // and code addresses (void*) for all the pending blocks. + + struct ItemRefAndCodeAddress { + lldb::addr_t item_ref; + lldb::addr_t code_address; + }; + + struct PendingItemsForQueue { + bool new_style; // new-style means both item_refs and code_addresses avail + // old-style means only item_refs is filled in + std::vector<ItemRefAndCodeAddress> item_refs_and_code_addresses; + }; + + bool + BacktraceRecordingHeadersInitialized (); + + void + ReadLibdispatchOffsetsAddress(); + + void + ReadLibdispatchOffsets (); + + void + ReadLibpthreadOffsetsAddress(); + + void + ReadLibpthreadOffsets (); + + void + ReadLibdispatchTSDIndexesAddress (); + + void + ReadLibdispatchTSDIndexes (); + + PendingItemsForQueue + GetPendingItemRefsForQueue (lldb::addr_t queue); + + ItemInfo + ExtractItemInfoFromBuffer (lldb_private::DataExtractor &extractor); + + lldb_private::AppleGetQueuesHandler m_get_queues_handler; + lldb_private::AppleGetPendingItemsHandler m_get_pending_items_handler; + lldb_private::AppleGetItemInfoHandler m_get_item_info_handler; + lldb_private::AppleGetThreadItemInfoHandler m_get_thread_item_info_handler; + + lldb::addr_t m_page_to_free; + uint64_t m_page_to_free_size; + libBacktraceRecording_info m_lib_backtrace_recording_info; + + lldb::addr_t m_dispatch_queue_offsets_addr; + struct LibdispatchOffsets m_libdispatch_offsets; + + lldb::addr_t m_libpthread_layout_offsets_addr; + struct LibpthreadOffsets m_libpthread_offsets; + + lldb::addr_t m_dispatch_tsd_indexes_addr; + struct LibdispatchTSDIndexes m_libdispatch_tsd_indexes; + + lldb::addr_t m_dispatch_voucher_offsets_addr; + struct LibdispatchVoucherOffsets m_libdispatch_voucher_offsets; + + DISALLOW_COPY_AND_ASSIGN (SystemRuntimeMacOSX); +}; + +#endif // liblldb_SystemRuntimeMacOSX_h_ |
