863aa28adf536c9c008e1590f25da662431d6f13 |
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09-May-2013 |
Greg Clayton <gclayton@apple.com> |
Changed the formerly pure virtual function: namespace lldb_private { class Thread { virtual lldb::StopInfoSP GetPrivateStopReason() = 0; }; } To not be virtual. The lldb_private::Thread now handles the correct caching and will call a new pure virtual function: namespace lldb_private { class Thread { virtual bool CalculateStopInfo() = 0; } } This function must be overridden by thead lldb_private::Thread subclass and the only thing it needs to do is to set the Thread::StopInfo() with the current stop reason and return true, or return false if there is no stop reason. The lldb_private::Thread class will take care of calling this function only when it is required. This allows lldb_private::Thread subclasses to be a bit simpler and not all need to duplicate the cache and invalidation settings. Also renamed: lldb::StopInfoSP lldb_private::Thread::GetPrivateStopReason(); To: lldb::StopInfoSP lldb_private::Thread::GetPrivateStopInfo(); Also cleaned up a case where the ThreadPlanStepOverBreakpoint might not re-set its breakpoint if the thread disappears (which was happening due to a bug when using the OperatingSystem plug-ins with memory threads and real threads). git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@181501 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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a46013bde54626b68cd2013b108f73a205f4b29a |
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01-May-2013 |
Greg Clayton <gclayton@apple.com> |
<rdar://problem/13700260> <rdar://problem/13723772> Modified the lldb_private::Thread to work much better with the OperatingSystem plug-ins. Operating system plug-ins can now return have a "core" key/value pair in each thread dictionary for the OperatingSystemPython plug-ins which allows the core threads to be contained with memory threads. It also allows these memory threads to be stepped, resumed, and controlled just as if they were the actual backing threads themselves. A few things are introduced: - lldb_private::Thread now has a GetProtocolID() method which returns the thread protocol ID for a given thread. The protocol ID (Thread::GetProtocolID()) is usually the same as the thread id (Thread::GetID()), but it can differ when a memory thread has its own id, but is backed by an actual API thread. - Cleaned up the Thread::WillResume() code to do the mandatory parts in Thread::ShouldResume(), and let the thread subclasses override the Thread::WillResume() which is now just a notification. - Cleaned up ClearStackFrames() implementations so that fewer thread subclasses needed to override them - Changed the POSIXThread class a bit since it overrode Thread::WillResume(). It is doing the wrong thing by calling "Thread::SetResumeState()" on its own, this shouldn't be done by thread subclasses, but the current code might rely on it so I left it in with a TODO comment with an explanation. git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@180886 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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94a5d0de4433dce556db59758f3d6124eb0e1a2a |
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10-Oct-2012 |
Jim Ingham <jingham@apple.com> |
Change the Thread constructor over to take a Process& rather than a ProcessSP. We can't create Threads with a NULL ProcessSP, so it makes no sense to use the SP. Then make the Thread a Broadcaster, and get it to broadcast when the selected frame is changed (but only from the Command Line) and when Thread::ReturnFromFrame changes the stack. Made the Driver use this notification to print the new thread status rather than doing it in the command. Fixed a few places where people were setting their broadcaster class by hand rather than using the static broadcaster class call. <rdar://problem/12383087> git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@165640 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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f4124deeb9532044a38c0774ced872f2709347da |
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21-Feb-2012 |
Greg Clayton <gclayton@apple.com> |
Thread hardening part 3. Now lldb_private::Thread objects have std::weak_ptr objects for the backlink to the lldb_private::Process. The issues we were running into before was someone was holding onto a shared pointer to a lldb_private::Thread for too long, and the lldb_private::Process parent object would get destroyed and the lldb_private::Thread had a "Process &m_process" member which would just treat whatever memory that used to be a Process as a valid Process. This was mostly happening for lldb_private::StackFrame objects that had a member like "Thread &m_thread". So this completes the internal strong/weak changes. Documented the ExecutionContext and ExecutionContextRef classes so that our LLDB developers can understand when and where to use ExecutionContext and ExecutionContextRef objects. git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@151009 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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37f962e785be99dc4f0c5e9d02416992ff03bbd0 |
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22-Aug-2011 |
Greg Clayton <gclayton@apple.com> |
Added a new plug-in type: lldb_private::OperatingSystem. The operating system plug-ins are add on plug-ins for the lldb_private::Process class that can add thread contexts that are read from memory. It is common in kernels to have a lot of threads that are not currently executing on any cores (JTAG debugging also follows this sort of thing) and are context switched out whose state is stored in memory data structures. Clients can now subclass the OperatingSystem plug-ins and then make sure their Create functions correcltly only enable themselves when the right binary/target triple are being debugged. The operating system plug-ins get a chance to attach themselves to processes just after launching or attaching and are given a lldb_private::Process object pointer which can be inspected to see if the main executable, target triple, or any shared libraries match a case where the OS plug-in should be used. Currently the OS plug-ins can create new threads, define the register contexts for these threads (which can all be different if desired), and populate and manage the thread info (stop reason, registers in the register context) as the debug session goes on. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@138228 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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e426d855032b9b1962b98028b42e3a4e88975b03 |
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03-Jun-2011 |
Peter Collingbourne <peter@pcc.me.uk> |
Move SaveFrameZeroState and RestoreSaveFrameZero implementations to Thread base class git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@132586 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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c3c4661c6a7527580e605dbb69bef7634971fe13 |
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15-Feb-2011 |
Greg Clayton <gclayton@apple.com> |
All UnwindPlan objects are now passed around as shared pointers. ArchDefaultUnwindPlan plug-in interfaces are now cached per architecture instead of being leaked for every frame. Split the ArchDefaultUnwindPlan_x86 into ArchDefaultUnwindPlan_x86_64 and ArchDefaultUnwindPlan_i386 interfaces. There were sporadic crashes that were due to something leaking or being destroyed when doing stack crawls. This patch should clear up these issues. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@125541 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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15dcb7ca49b8d8f46910cf085b4c249aac5317fa |
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20-Jan-2011 |
Jim Ingham <jingham@apple.com> |
Back up both the register AND the stop state when calling functions. Set the thread state to "bland" before calling functions so they don't inherit the pending signals and die. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@123869 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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a875b64ab8d258b28959d05eea37cb5dfdd72730 |
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09-Jan-2011 |
Greg Clayton <gclayton@apple.com> |
Put more smarts into the RegisterContext base class. Now the base class has a method: void RegisterContext::InvalidateIfNeeded (bool force); Each time this function is called, when "force" is false, it will only call the pure virtual "virtual void RegisterContext::InvalideAllRegisters()" if the register context's stop ID doesn't match that of the process. When the stop ID doesn't match, or "force" is true, the base class will clear its cached registers and the RegisterContext will update its stop ID to match that of the process. This helps make it easier to correctly flush the register context (possibly from multiple locations depending on when and where new registers are availabe) without inadvertently clearing the register cache when it doesn't need to be. Modified the ProcessGDBRemote plug-in to be much more efficient when it comes to: - caching the expedited registers in the stop reply packets (we were ignoring these before and it was causing us to read at least three registers every time we stopped that were already supplied in the stop reply packet). - When a thread has no stop reason, don't keep asking for the thread stopped info. Prior to this fix we would continually send a qThreadStopInfo packet over and over when any thread stop info was requested. We now note the stop ID that the stop info was requested for and avoid multiple requests. Cleaned up some of the expression code to not look for ClangExpressionVariable objects up by name since they are now shared pointers and we can just look for the exact pointer match and avoid possible errors. Fixed an bug in the ValueObject code that would cause children to not be displayed. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@123127 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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08d7d3ae16110aa68ed40c161eac8571aeb94cd9 |
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06-Jan-2011 |
Greg Clayton <gclayton@apple.com> |
Fixed issues with RegisterContext classes and the subclasses. There was an issue with the way the UnwindLLDB was handing out RegisterContexts: it was making shared pointers to register contexts and then handing out just the pointers (which would get put into shared pointers in the thread and stack frame classes) and cause double free issues. MallocScribble helped to find these issues after I did some other cleanup. To help avoid any RegisterContext issue in the future, all code that deals with them now returns shared pointers to the register contexts so we don't end up with multiple deletions. Also now that the RegisterContext class doesn't require a stack frame, we patched a memory leak where a StackFrame object was being created and leaked. Made the RegisterContext class not have a pointer to a StackFrame object as one register context class can be used for N inlined stack frames so there is not a 1 - 1 mapping. Updates the ExecutionContextScope part of the RegisterContext class to never return a stack frame to indicate this when it is asked to recreate the execution context. Now register contexts point to the concrete frame using a concrete frame index. Concrete frames are all of the frames that are actually formed on the stack of a thread. These concrete frames can be turned into one or more user visible frames due to inlining. Each inlined stack frame has the exact same register context (shared via shared pointers) as any parent inlined stack frames all the way up to the concrete frame itself. So now the stack frames and the register contexts should behave much better. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@122976 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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6e889b142d6acbe1c318bc1b690dd9c3722d7095 |
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17-Dec-2010 |
Greg Clayton <gclayton@apple.com> |
Removed libunwind sources as we aren't using them anymore. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@122059 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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71219089a9896e3c5c307f7465c8f90f2a9f6d68 |
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12-Aug-2010 |
Jim Ingham <jingham@apple.com> |
Now that we are using the Unwinder (or Jason's new unwinder when that comes about) all the plugin-specific details of getting stack frames should be hidden behind that, and the "GetStackFrameAtIndex" and "GetStackFrameCount" algorithms become generic. So I moved them to Thread.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@110899 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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643ee7301b5d4b05c321d906bc0d7ff11f571295 |
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04-Aug-2010 |
Greg Clayton <gclayton@apple.com> |
Abtracted the old "lldb_private::Thread::StopInfo" into an abtract class. This will allow debugger plug-ins to make any instance of "lldb_private::StopInfo" that can completely describe any stop reason. It also provides a framework for doing intelligent things with the stop info at important times in the lifetime of the inferior. Examples include the signal stop info in StopInfoUnixSignal. It will check with the process to see that the current action is for the signal. These actions include wether to stop for the signal, wether the notify that the signal was hit, and wether to pass the signal along to the inferior process. The StopInfoUnixSignal class overrides the "ShouldStop()" method of StopInfo and this allows the stop info to determine if it should stop at the signal or continue the process. StopInfo subclasses must override the following functions: virtual lldb::StopReason GetStopReason () const = 0; virtual const char * GetDescription () = 0; StopInfo subclasses can override the following functions: // If the subclass returns "false", the inferior will resume. The default // version of this function returns "true" which means the default stop // info will stop the process. The breakpoint subclass will check if // the breakpoint wants us to stop by calling any installed callback on // the breakpoint, and also checking if the breakpoint is for the current // thread. Signals will check if they should stop based off of the // UnixSignal settings in the process. virtual bool ShouldStop (Event *event_ptr); // Sublasses can state if they want to notify the debugger when "ShouldStop" // returns false. This would be handy for breakpoints where you want to // log information and continue and is also used by the signal stop info // to notify that a signal was received (after it checks with the process // signal settings). virtual bool ShouldNotify (Event *event_ptr) { return false; } // Allow subclasses to do something intelligent right before we resume. // The signal class will figure out if the signal should be propagated // to the inferior process and pass that along to the debugger plug-ins. virtual void WillResume (lldb::StateType resume_state) { // By default, don't do anything } The support the Mach exceptions was moved into the lldb/source/Plugins/Process/Utility folder and now doesn't polute the lldb_private::Thread class with platform specific code. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@110184 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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54e7afa84d945f9137f9372ecde432f9e1a702fc |
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09-Jul-2010 |
Greg Clayton <gclayton@apple.com> |
Merged Eli Friedman's linux build changes where he added Makefile files that enabled LLVM make style building and made this compile LLDB on Mac OS X. We can now iterate on this to make the build work on both linux and macosx. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@108009 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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24943d2ee8bfaa7cf5893e4709143924157a5c1e |
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08-Jun-2010 |
Chris Lattner <sabre@nondot.org> |
Initial checkin of lldb code from internal Apple repo. git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@105619 91177308-0d34-0410-b5e6-96231b3b80d8
/external/lldb/source/Plugins/Process/gdb-remote/ThreadGDBRemote.h
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