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705b180964
lldb support. I'll be doing more testing & cleanup but I wanted to get the initial checkin done. This adds a new SBExpressionOptions::SetLanguage API for selecting a language of an expression. I added adds a new SBThread::GetInfoItemByPathString for retriving information about a thread from that thread's StructuredData. I added a new StructuredData class for representing key-value/array/dictionary information (e.g. JSON formatted data). Helper functions to read JSON and create a StructuredData object, and to print a StructuredData object in JSON format are included. A few Cocoa / Cocoa Touch data formatters were updated by Enrico to track changes in iOS 8 / Yosemite. Before we query a thread's extended information, the system runtime may provide hints to the remote debug stub that it will use to retrieve values out of runtime structures. I added a new SystemRuntime method AddThreadExtendedInfoPacketHints which allows the SystemRuntime to add key-value type data to the initial request that we send to the remote stub. The thread-format formatter string can now retrieve values out of a thread's extended info structured data. The default thread-format string picks up two of these - thread.info.activity.name and thread.info.trace_messages. I added a new "jThreadExtendedInfo" packet in debugserver; I will add documentation to the lldb-gdb-remote.txt doc soon. It accepts JSON formatted arguments (most importantly, "thread":threadnum) and it returns a variety of information regarding the thread to lldb in JSON format. This JSON return is scanned into a StructuredData object that is associated with the thread; UI layers can query the thread's StructuredData to see if key-values are present, and if so, show them to the user. These key-values are likely to be specific to different targets with some commonality among many targets. For instance, many targets will be able to advertise the pthread_t value for a thread. I added an initial rough cut of "thread info" command which will print the information about a thread from the jThreadExtendedInfo result. I need to do more work to make this format reasonably. Han Ming added calls into the pmenergy and pmsample libraries if debugserver is run on Mac OS X Yosemite to get information about the inferior's power use. I added support to debugserver for gathering the Genealogy information about threads, if it exists, and returning it in the jThreadExtendedInfo JSON result. llvm-svn: 210874
121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
//===-- ThreadGDBRemote.h ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_ThreadGDBRemote_h_
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#define liblldb_ThreadGDBRemote_h_
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#include <string>
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#include "lldb/Core/StructuredData.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Thread.h"
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class StringExtractor;
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class ProcessGDBRemote;
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class ThreadGDBRemote : public lldb_private::Thread
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{
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public:
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ThreadGDBRemote (lldb_private::Process &process, lldb::tid_t tid);
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virtual
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~ThreadGDBRemote ();
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virtual void
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WillResume (lldb::StateType resume_state);
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virtual void
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RefreshStateAfterStop();
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virtual const char *
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GetName ();
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virtual const char *
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GetQueueName ();
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virtual lldb::queue_id_t
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GetQueueID ();
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virtual lldb::QueueSP
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GetQueue ();
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lldb::addr_t
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GetQueueLibdispatchQueueAddress ();
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virtual lldb::RegisterContextSP
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GetRegisterContext ();
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virtual lldb::RegisterContextSP
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CreateRegisterContextForFrame (lldb_private::StackFrame *frame);
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void
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Dump (lldb_private::Log *log, uint32_t index);
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static bool
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ThreadIDIsValid (lldb::tid_t thread);
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bool
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ShouldStop (bool &step_more);
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const char *
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GetBasicInfoAsString ();
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void
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SetName (const char *name)
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{
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if (name && name[0])
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m_thread_name.assign (name);
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else
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m_thread_name.clear();
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}
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lldb::addr_t
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GetThreadDispatchQAddr ()
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{
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return m_thread_dispatch_qaddr;
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}
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void
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SetThreadDispatchQAddr (lldb::addr_t thread_dispatch_qaddr)
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{
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m_thread_dispatch_qaddr = thread_dispatch_qaddr;
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}
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lldb_private::StructuredData::ObjectSP
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FetchThreadExtendedInfo ();
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protected:
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friend class ProcessGDBRemote;
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bool
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PrivateSetRegisterValue (uint32_t reg,
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StringExtractor &response);
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//------------------------------------------------------------------
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// Member variables.
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//------------------------------------------------------------------
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std::string m_thread_name;
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std::string m_dispatch_queue_name;
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lldb::addr_t m_thread_dispatch_qaddr;
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//------------------------------------------------------------------
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// Member variables.
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//------------------------------------------------------------------
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void
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SetStopInfoFromPacket (StringExtractor &stop_packet, uint32_t stop_id);
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virtual bool
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CalculateStopInfo ();
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};
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#endif // liblldb_ThreadGDBRemote_h_
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