When profiler's memory buffer is filled up, profiling is stopped and it is ensured that the last record in the buffer is "profiler,\"pause\"" thus making the end of profiling session explicit. Otherwise DevTools Profiler would need to guess whether the current profiling session has been stopped.

Tested with Chromium.

Review URL: http://codereview.chromium.org/115859


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before performing debugger property lookup make sure the current context is set to the context active before the debugger was entered.

Make the use of the LookupResult GC safe in debugger property lookup.
Review URL: http://codereview.chromium.org/115855

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Review URL: http://codereview.chromium.org/115857

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Review URL: http://codereview.chromium.org/115816

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I suggest that the lack of initialization causes issue 358 to happen. In Profiler::Disengage an empty TickSample is inserted in order to wake up the Profiler thread. Issue reporter claims that crash happens in LogTickEvent function. My guess is that frames_couint receives a wild value.

Review URL: http://codereview.chromium.org/113939


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The goal of this change is to allow longer profiling sessions and preserve memory when profiler isn't started. The buffer starts with 64K and grows until it reaches the upper limit, which is currently set to 50MB --- according to my evaluations, this is enough for at least 20 minutes of GMail profiling. As we're planning to introduce compression for the profiler log, this time boundary will be significantly increased soon.

To make possible unit testing of the new component, I've factored out Logger's utility classes into a separate source file: log-utils.h/cc. Log and LogMessageBuilder are moved there from log.cc without any semantical changes.

Review URL: http://codereview.chromium.org/115814


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Review URL: http://codereview.chromium.org/113900

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Review URL: http://codereview.chromium.org/113895

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A very long regexp graph can overflow the stack with recursive calls.

Review URL: http://codereview.chromium.org/113894


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Review URL: http://codereview.chromium.org/113841

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to the platform-specific reserved registers.  They are always in use
for their intended purpose, cannot appear in the virtual frame, and
can be freely used without allocation in the code generator.

Review URL: http://codereview.chromium.org/113837

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Review URL: http://codereview.chromium.org/113838


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Prior to this change debug version of the test crashed 2 of 1000 times. After the change no crashes (out of 1000 runs) occured.

Review URL: http://codereview.chromium.org/115772


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This resolves issue 356 (http://code.google.com/p/v8/issues/detail?id=356) thanks to bitRAKE. Changed benchmark version number from 4 to 5 resulting in updates to base.js, README.txt and revisions.html. 

Review URL: http://codereview.chromium.org/113839

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Review URL: http://codereview.chromium.org/113832

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Review URL: http://codereview.chromium.org/115770

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Review URL: http://codereview.chromium.org/113825

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whether people are already in it.
Review URL: http://codereview.chromium.org/113834

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  for scripts.
Review URL: http://codereview.chromium.org/115592

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Review URL: http://codereview.chromium.org/115707

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TBR=iposva@chromium.org
Review URL: http://codereview.chromium.org/113829

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This allows us to optimized the EnsureInitialized() function
so it doesn't require a function call when we're running

Review URL: http://codereview.chromium.org/113121

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Review URL: http://codereview.chromium.org/115764

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called from within a loop or not.  In the past we lost the
information if a call site went megamorphic before a lazily
compiled callee was called for the first time.  Now we track
that correctly (this is an issue that affects richards).
We still don't manage to track the in-loop state through a
constructor call, since constructor calls use LoadICs instead
of CallICs.  This issue affects delta-blue.  So in this patch
we assume that lazy compilations that don't happen through a
CallIC happen from inside a loop.  I have an idea to fix this
but this patch is big enough already.
With our improved tracking of in-loop state I have switched
off the inlining of in-object loads for code that is not in
a loop.  This benefits compile speed.  One issue is that
eagerly compiled code now doesn't get the in-object loads
inlined.  We need to eagerly compile less code to fix this.
Review URL: http://codereview.chromium.org/115744

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  bits in a page.
Review URL: http://codereview.chromium.org/113819

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When inspecting a function with a native getter return result of execution of the getter function in the client context. This is useful for debugging DOM elements.
Review URL: http://codereview.chromium.org/113821

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Review URL: http://codereview.chromium.org/113767

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Review URL: http://codereview.chromium.org/113820


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This is needed for DevTools Profiler because of its asynchronous and multi-client architecture.

Review URL: http://codereview.chromium.org/115761


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Review URL: http://codereview.chromium.org/115760


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Review URL: http://codereview.chromium.org/115757


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This issue was raised by Brett Wilson while reviewing my changelist for readability. Craig Silverstein (one of C++ SG maintainers) confirmed that we should declare one namespace per line. Our way of namespaces closing seems not violating style guides (there is no clear agreement on it), so I left it intact.

Review URL: http://codereview.chromium.org/115756


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All changes from http://codereview.chromium.org/115024, except splitting namespace declarations in two lines (will be done separately for all source files).

Review URL: http://codereview.chromium.org/113763


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This is intended to be used with Chromium. When in resource-saving mode, profiler doesn't consume any resources (sampler and logging is off) until resumed. Then again, when profiler is paused, sampling and logging are turned off.

Tested under Linux and Windows. Also have done preliminary testing with Chromium.

Review URL: http://codereview.chromium.org/113762


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When message handler is set to NULL and there is no debugger listener the debugger is unloaded immediately unless it's entered, in which case it will be unloaded when last instance of EnterDebugger is destroyed.

Without the change the debugger may crash as Debugger::EventActive(v8::Break) called from OnDebugBreak may clear current debugger context. 

Also when compilation cache was enabled debugger could fail on second attach for the same reason(see AfterCompileMessageWhenMessageHandlerIsReset).

BUG=12404
Review URL: http://codereview.chromium.org/115709

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This allows test-heap to run successfully.

Review URL: http://codereview.chromium.org/115706


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assignment operator) and add an AddAll method to lists instead.
Review URL: http://codereview.chromium.org/115705

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Review URL: http://codereview.chromium.org/113635

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Review URL: http://codereview.chromium.org/113761

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Review URL: http://codereview.chromium.org/115571

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