If null is not initialized before the VM Isolate's ObjectStore, the
ObjectStore's fields are initialized to kHeapObjectTag, which causes
a crash in VM Isolate shutdown.
There is also a crash when the VM Isolate is signaled with the
shutdown event, so this CL removes adding a Debugger to the
VM Isolate, so that there is no need to shut it down, and send
the signal.
NB: This change does *not* actually enable shutdown. It just fixes
crashes that would happen if it were enabled.
BUG=
R=iposva@google.com, johnmccutchan@google.com
Review URL: https://codereview.chromium.org//1168933002.
This time I am committing the protocol changes first and saving the
Observatory changes for a second cl.
------
We currently support 5 streams: Isolate, Debug, GC, _Echo, and _Graph.
Only generate events when at least one client is listening to the
corresponding event stream.
Only send events to the clients that actually request them.
BUG=
R=johnmccutchan@google.com
Review URL: https://codereview.chromium.org//1166433008
kClosureCall and kOptStaticCall are not needed anymore.
Closure calls are implemented as instance calls - the ClosureCall instruction
only occurs in the synthetic FunctionImpl.call dispatcher - and does not correspond
to a source location where breakpoints can be set.
kOptStaticCall is not needed because breakpoints can only be set in unoptimized
code. kOther is used instead.
This also removes an unused PC descriptor at closure calls from unoptimized
code.
BUG=
R=vegorov@google.com
Review URL: https://codereview.chromium.org//1160063002
Fix copying breakpoints over to a new location when a latent location is resolved.
Fix bad assumption that BreakpointLocationAtLine always returns non-null result.
Review URL: https://codereview.chromium.org//1149983003
We currently support 5 streams: Isolate, Debug, GC, _Echo, and _Graph.
Only generate events when at least one client is listening to the
corresponding event stream.
Only send events to the clients that actually request them.
Implement this all as Dart streams in the service lib.
Update tests. Fix a race in async_generator_..._test that was biting me.
Review URL: https://codereview.chromium.org//1143783003
When possible the ThreadInterrupter enters a deep sleep mode (to conserve CPU usage). We wake the ThreadInterrupter up whenever we schedule an isolate on a thread, but, two edges cases that were not covered:
* After explicitly starting an isolate that was paused with --pause-isolates-on-start the thread interrupter may not wake up.
* After continuing an isolate that was being single stepped.
R=rmacnak@google.com
Review URL: https://codereview.chromium.org//1142283003
- Add LocalVariableAnnotation to script-inset
- Tweak shortName for a closure
- Teach Script how to find local variable locations (not perfect yet)
- Send tokenPos and endTokenPos for debugger local variables
Performance improvements:
- Reduced script-inset update/computeAnnotations calls from 5 to 1 for each stack frame that is opened
R=rmacnak@google.com
Review URL: https://codereview.chromium.org//1126363005
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45725 260f80e4-7a28-3924-810f-c04153c831b5
- Add _getCrashDump RPC
- crash dump service response is map of request uris to responses, includes:
-- getVM
-- getFlagList
-- for each isolate:
-- getIsolate
-- _getAllocationProfile
-- getStack
- Add FakeVM to service library
- Add load crash dump to Observatory connect page
- Removes old chromium target support from connect page
- Make debugger page display stack even if libraries can't be loaded
- Fix reload of vm-connect page
- Fix polymer initialization calls
R=turnidge@google.com
Review URL: https://codereview.chromium.org//1100583006
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45390 260f80e4-7a28-3924-810f-c04153c831b5
Implement in-frame evaluation in the vm service.
Add a notion of 'current frame' and use it across the debugger,
particularly in source-location based commands (break, clear).
Change the expansion logic for frames, so that by default only the
current frame is shown. When a user expands a frame it is now pinned.
Change command line parsing so that internal whitespace is preserved. We need this to properly evaluate expressions with internal whitespace.
Fix a deadlock in the debugger message loop.
R=johnmccutchan@google.com
Review URL: https://codereview.chromium.org//993613002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@44353 260f80e4-7a28-3924-810f-c04153c831b5
--------
VM
Add a new ServiceEvent class in the vm. Rework the event type names.
Add BreakpointAdded, BreakpointResolved, and BreakpointRemoved
service events.
Record the top frame for kIsolateInterrupted and kExceptionThrown
debugger events.
Send a top frame in more Pause* events.
Send breakpoint list with the Isolate response. Remove the
getBreakpoints method from the vm service.
Move Resume events into debugger.cc.
Rework MessageHandler a bit so that we can send PauseStart and
PauseExit notifications.
--------
Observatory
Move some event handler from Application to Isolate.
Rewrite breakpoint tracking code to use the new breakpoint events.
Change run state tracking in Isolate.
Change getFromMap so that it applies updates if the map isn't a ref.
Use getFromMap instead of new ServiceObject in invokeRpc. This
fixes some duplicate ServiceObject problems.
Review URL: https://codereview.chromium.org//979823003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@44268 260f80e4-7a28-3924-810f-c04153c831b5
Simplify debugger logic. Any function can be marked as
non-debuggable when is is created. The debugger no longer
needs a heuristic which functions are debuggable.
Mostly used for synthetic, generated functions that
have no source code, e.g. async code, implicit getters and
setters, implicit constructors, forwarding constructors,
dispatcher functions.
Review URL: https://codereview.chromium.org//789643006
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@42570 260f80e4-7a28-3924-810f-c04153c831b5
Make sure the debugger finds the closure function containing the body
of async functions, but not the synthetic function that generates the
future.
Change the way the debugger sets one-time breakpoints. Instead of
compiling the function and instrumenting all safe-points, set a
breakpoint marked as “one-shot” at the beginning of the function
and wait until the function is compiled. Then, once it fires, it
gets automatically deleted.
Finally, be smarter how we resolve breakpoints in compiled code.
The compiler rearranges code in await expressions, which tripped
up the debugger. This change makes sure we select the lowest compiled
code address only within the line containing the requested breakpoint
position.
R=iposva@google.com
Review URL: https://codereview.chromium.org//805573003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@42368 260f80e4-7a28-3924-810f-c04153c831b5
Ryan Macnak