c3776bf288
user space programs. The core file support is implemented by making a process plug-in that will dress up the threads and stack frames by using the core file memory. Added many default implementations for the lldb_private::Process functions so that plug-ins like the ProcessMachCore don't need to override many many functions only to have to return an error. Added new virtual functions to the ObjectFile class for extracting the frozen thread states that might be stored in object files. The default implementations return no thread information, but any platforms that support core files that contain frozen thread states (like mach-o) can make a module using the core file and then extract the information. The object files can enumerate the threads and also provide the register state for each thread. Since each object file knows how the thread registers are stored, they are responsible for creating a suitable register context that can be used by the core file threads. Changed the process CreateInstace callbacks to return a shared pointer and to also take an "const FileSpec *core_file" parameter to allow for core file support. This will also allow for lldb_private::Process subclasses to be made that could load crash logs. This should be possible on darwin where the crash logs contain all of the stack frames for all of the threads, yet the crash logs only contain the registers for the crashed thrad. It should also allow some variables to be viewed for the thread that crashed. llvm-svn: 150154
275 lines
7.9 KiB
C++
275 lines
7.9 KiB
C++
//===-- ProcessKDP.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_ProcessKDP_h_
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#define liblldb_ProcessKDP_h_
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// C Includes
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// C++ Includes
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#include <list>
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#include <vector>
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// Other libraries and framework includes
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#include "lldb/Core/ArchSpec.h"
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#include "lldb/Core/Broadcaster.h"
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#include "lldb/Core/Error.h"
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#include "lldb/Core/InputReader.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Core/StringList.h"
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#include "lldb/Core/ThreadSafeValue.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Thread.h"
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#include "CommunicationKDP.h"
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#include "Utility/StringExtractor.h"
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class ThreadKDP;
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class ProcessKDP : public lldb_private::Process
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{
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public:
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//------------------------------------------------------------------
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// Constructors and Destructors
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//------------------------------------------------------------------
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static lldb::ProcessSP
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CreateInstance (lldb_private::Target& target,
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lldb_private::Listener &listener,
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const lldb_private::FileSpec *crash_file_path);
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static void
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Initialize();
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static void
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Terminate();
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static const char *
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GetPluginNameStatic();
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static const char *
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GetPluginDescriptionStatic();
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//------------------------------------------------------------------
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// Constructors and Destructors
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//------------------------------------------------------------------
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ProcessKDP(lldb_private::Target& target, lldb_private::Listener &listener);
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virtual
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~ProcessKDP();
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//------------------------------------------------------------------
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// Check if a given Process
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//------------------------------------------------------------------
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virtual bool
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CanDebug (lldb_private::Target &target,
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bool plugin_specified_by_name);
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// virtual uint32_t
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// ListProcessesMatchingName (const char *name, lldb_private::StringList &matches, std::vector<lldb::pid_t> &pids);
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//------------------------------------------------------------------
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// Creating a new process, or attaching to an existing one
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//------------------------------------------------------------------
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virtual lldb_private::Error
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WillLaunch (lldb_private::Module* module);
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virtual lldb_private::Error
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DoLaunch (lldb_private::Module *exe_module,
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const lldb_private::ProcessLaunchInfo &launch_info);
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virtual lldb_private::Error
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WillAttachToProcessWithID (lldb::pid_t pid);
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virtual lldb_private::Error
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WillAttachToProcessWithName (const char *process_name, bool wait_for_launch);
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virtual lldb_private::Error
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DoConnectRemote (const char *remote_url);
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virtual lldb_private::Error
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DoAttachToProcessWithID (lldb::pid_t pid);
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virtual lldb_private::Error
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DoAttachToProcessWithName (const char *process_name, bool wait_for_launch);
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virtual void
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DidAttach ();
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//------------------------------------------------------------------
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// PluginInterface protocol
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//------------------------------------------------------------------
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virtual const char *
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GetPluginName();
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virtual const char *
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GetShortPluginName();
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virtual uint32_t
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GetPluginVersion();
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//------------------------------------------------------------------
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// Process Control
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//------------------------------------------------------------------
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virtual lldb_private::Error
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WillResume ();
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virtual lldb_private::Error
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DoResume ();
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virtual lldb_private::Error
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DoHalt (bool &caused_stop);
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virtual lldb_private::Error
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WillDetach ();
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virtual lldb_private::Error
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DoDetach ();
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virtual lldb_private::Error
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DoSignal (int signal);
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virtual lldb_private::Error
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DoDestroy ();
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virtual void
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RefreshStateAfterStop();
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//------------------------------------------------------------------
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// Process Queries
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//------------------------------------------------------------------
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virtual bool
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IsAlive ();
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//------------------------------------------------------------------
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// Process Memory
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//------------------------------------------------------------------
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virtual size_t
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DoReadMemory (lldb::addr_t addr, void *buf, size_t size, lldb_private::Error &error);
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virtual size_t
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DoWriteMemory (lldb::addr_t addr, const void *buf, size_t size, lldb_private::Error &error);
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virtual lldb::addr_t
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DoAllocateMemory (size_t size, uint32_t permissions, lldb_private::Error &error);
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virtual lldb_private::Error
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DoDeallocateMemory (lldb::addr_t ptr);
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//----------------------------------------------------------------------
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// Process Breakpoints
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//----------------------------------------------------------------------
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virtual lldb_private::Error
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EnableBreakpoint (lldb_private::BreakpointSite *bp_site);
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virtual lldb_private::Error
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DisableBreakpoint (lldb_private::BreakpointSite *bp_site);
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//----------------------------------------------------------------------
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// Process Watchpoints
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//----------------------------------------------------------------------
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virtual lldb_private::Error
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EnableWatchpoint (lldb_private::Watchpoint *wp);
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virtual lldb_private::Error
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DisableWatchpoint (lldb_private::Watchpoint *wp);
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CommunicationKDP &
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GetCommunication()
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{
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return m_comm;
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}
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protected:
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friend class ThreadKDP;
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friend class CommunicationKDP;
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//----------------------------------------------------------------------
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// Accessors
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//----------------------------------------------------------------------
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bool
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IsRunning ( lldb::StateType state )
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{
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return state == lldb::eStateRunning || IsStepping(state);
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}
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bool
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IsStepping ( lldb::StateType state)
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{
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return state == lldb::eStateStepping;
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}
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bool
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CanResume ( lldb::StateType state)
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{
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return state == lldb::eStateStopped;
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}
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bool
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HasExited (lldb::StateType state)
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{
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return state == lldb::eStateExited;
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}
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bool
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ProcessIDIsValid ( ) const;
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// static void
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// STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len);
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// void
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// AppendSTDOUT (const char* s, size_t len);
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void
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Clear ( );
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uint32_t
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UpdateThreadList (lldb_private::ThreadList &old_thread_list,
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lldb_private::ThreadList &new_thread_list);
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enum
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{
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eBroadcastBitAsyncContinue = (1 << 0),
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eBroadcastBitAsyncThreadShouldExit = (1 << 1)
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};
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lldb_private::Error
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InterruptIfRunning (bool discard_thread_plans,
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bool catch_stop_event,
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lldb::EventSP &stop_event_sp);
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//------------------------------------------------------------------
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/// Broadcaster event bits definitions.
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//------------------------------------------------------------------
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CommunicationKDP m_comm;
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lldb_private::Broadcaster m_async_broadcaster;
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lldb::thread_t m_async_thread;
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bool
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StartAsyncThread ();
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void
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StopAsyncThread ();
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static void *
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AsyncThread (void *arg);
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lldb::StateType
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SetThreadStopInfo (StringExtractor& stop_packet);
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private:
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//------------------------------------------------------------------
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// For ProcessKDP only
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//------------------------------------------------------------------
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DISALLOW_COPY_AND_ASSIGN (ProcessKDP);
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};
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#endif // liblldb_ProcessKDP_h_
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