Commit Graph

9 Commits

Author SHA1 Message Date
Jim Ingham 0f16e73a76 Rework the RunThreadPlan event handling to use Event Hijacking not stopping the event thread. Also clarify the logic of the function.
llvm-svn: 125083
2011-02-08 05:20:59 +00:00
Jim Ingham 77787033b9 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.

llvm-svn: 123869
2011-01-20 02:03:18 +00:00
Greg Clayton 4e78f60660 Added the ability to get more information on the SBThread's stop reason
by being able to get the data count and data. Each thread stop reason
has one or more data words that can help describe the stop. To do this
I added:

    size_t
	SBThread::GetStopReasonDataCount();

	uint64_t
	SBThread::GetStopReasonDataAtIndex(uint32_t idx);

llvm-svn: 119720
2010-11-18 18:52:36 +00:00
Greg Clayton 2d4edfbc6a Modified all logging calls to hand out shared pointers to make sure we
don't crash if we disable logging when some code already has a copy of the
logger. Prior to this fix, logs were handed out as pointers and if they were
held onto while a log got disabled, then it could cause a crash. Now all logs
are handed out as shared pointers so this problem shouldn't happen anymore.
We are also using our new shared pointers that put the shared pointer count
and the object into the same allocation for a tad better performance.

llvm-svn: 118319
2010-11-06 01:53:30 +00:00
Jim Ingham 36f3b369d2 Added support for breakpoint conditions. I also had to separate the "run the expression" part of ClangFunction::Execute from the "Gather the expression result" so that in the case of the Breakpoint condition I can move the condition evaluation into the normal thread plan processing.
Also added support for remembering the "last set breakpoint" so that "break modify" will act on the last set breakpoint.

llvm-svn: 116542
2010-10-14 23:45:03 +00:00
Greg Clayton 0603aa9dc8 There are now to new "settings set" variables that live in each debugger
instance:

settings set frame-format <string>
settings set thread-format <string>

This allows users to control the information that is seen when dumping
threads and frames. The default values are set such that they do what they
used to do prior to changing over the the user defined formats.

This allows users with terminals that can display color to make different
items different colors using the escape control codes. A few alias examples
that will colorize your thread and frame prompts are:

settings set frame-format 'frame #${frame.index}: \033[0;33m${frame.pc}\033[0m{ \033[1;4;36m${module.file.basename}\033[0;36m ${function.name}{${function.pc-offset}}\033[0m}{ \033[0;35mat \033[1;35m${line.file.basename}:${line.number}}\033[0m\n'

settings set thread-format 'thread #${thread.index}: \033[1;33mtid\033[0;33m = ${thread.id}\033[0m{, \033[0;33m${frame.pc}\033[0m}{ \033[1;4;36m${module.file.basename}\033[0;36m ${function.name}{${function.pc-offset}}\033[0m}{, \033[1;35mstop reason\033[0;35m = ${thread.stop-reason}\033[0m}{, \033[1;36mname = \033[0;36m${thread.name}\033[0m}{, \033[1;32mqueue = \033[0;32m${thread.queue}}\033[0m\n'

A quick web search for "colorize terminal output" should allow you to see what
you can do to make your output look like you want it.

The "settings set" commands above can of course be added to your ~/.lldbinit
file for permanent use.

Changed the pure virtual 
    void ExecutionContextScope::Calculate (ExecutionContext&);
To:
    void ExecutionContextScope::CalculateExecutionContext (ExecutionContext&);
    
I did this because this is a class that anything in the execution context
heirarchy inherits from and "target->Calculate (exe_ctx)" didn't always tell
you what it was really trying to do unless you look at the parameter.

llvm-svn: 115485
2010-10-04 01:05:56 +00:00
Jim Ingham 3ebcf7f09b Make breakpoint commands work again. Added a PerformAction to the stop info - actions are run when the
stop event is pulled from the event queue.  Then made the StopInfoBreakpoint's PerformAction do the 
breakpoint command.
Also fixed the StopInfoBreakpoint's GetDescription so it gets the breakpoint location info, not the breakpoint
site info.

llvm-svn: 110637
2010-08-10 00:59:59 +00:00
Jim Ingham 5aee162f97 Change Target & Process so they can really be initialized with an invalid architecture.
Arrange that this then gets properly set on attach, or when a "file" is set.
Add a completer for "process attach -n".

Caveats: there isn't currently a way to handle multiple processes with the same name.  That
will have to wait on a way to pass annotations along with the completion strings.

llvm-svn: 110624
2010-08-09 23:31:02 +00:00
Greg Clayton f4b47e1579 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.

llvm-svn: 110184
2010-08-04 01:40:35 +00:00