Creation stack trace points to the place where callback was actually chained, scheduled points where parent promise was resolved.
For async tasks without creation stack (e.g. setTimeout) we continue to use scheduled as creation since usually they are the same.
BUG=v8:6189
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2868493002
Cr-Commit-Position: refs/heads/master@{#45198}
Removes the do-expression wrapping, modifies BytecodeGenerator change
to enter a class literal's block scope if needed.
This does not solve the actual bug in v8:6322, but helps mitigate it in
simple cases. The bug is caused by BytecodeGenerator not allocating a
large enough array of context registers to hold its entire stack,
allowing non-context registers to be overwritten during PushContext and
PopContext bytecodes.
Nevertheless, I like the idea of not depending on do-expressions when
possible, so I think it's worth doing anyways.
BUG=v8:6322
R=rmcilroy@chromium.org, marja@chromium.org, littledan@chromium.org
Change-Id: I82b7569db2a0eead1694bd04765fc4456c2f1a0a
Reviewed-on: https://chromium-review.googlesource.com/491074
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Daniel Ehrenberg <littledan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45110}
getPossibleBreakpoints implementation can enforce function compilation which potentially can produce syntax error, we need to have a context to correctly report this error.
BUG=chromium:715334
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2851853002
Cr-Commit-Position: refs/heads/master@{#45003}
- we should always set creation async stack if it's available regardless existing of current parent async stack,
- we should cleanup parent link iff there is no creation and schedule async stack for parent.
Let's consider example: Promise.resolve().then(x => x).then(x => x), there is three promises which will call following instrumentation:
1) created #1 (Promise.resolve()) - collected stack #1
2) scheduled #1 - collected stack #2
3) created #2 with #1 as parent (first .then) - collected stack #3
4) created #3 with #2 as parent (first .then) - collected stack #4
5) started #2 - use stack #2 as scheduled
6) scheduled #2 - collected stack #6
7) finished #2
8) started #3 - use stack #6 as scheduled
9) scheduled #3 - collected stack #7
10) finished #3
If we collect stacks between step 4 and 5, it's possible to collect scheduled stack #2 but still have creation stack for #2 - stack #3 - so we always need to add creation event if scheduled is collected.
If we collect stacks between created and scheduled we should not remove parent link even if parent was not scheduled yet.
BUG=v8:6189
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2844753002
Cr-Commit-Position: refs/heads/master@{#44990}
.. replace all of them with prepared global object template.
+ bonus: wrap inspector related methods with inspector namespace.
BUG=none
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2832723004
Cr-Commit-Position: refs/heads/master@{#44785}
With recent CLs we always store maximum N async stack traces and when we reach limit we drop half of them.
Current promise collected event requires creating weak handle:
- it takes time,
- it consumes memory.
Since async task id distribution for promises is uniform (each new promise has last_async_task_id + 1 as an id) our hash map is good enough to handle any amount of async task ids, following time of executing 1 000 000 000 of lookups:
- for empty hash map: 1.45 seconds,
- for hash map with one entry: 14.95 seconds
- 1024 entries: 15.03 seconds
- 1024 * 1024 entries: 14.82 seconds
- 1024 * 1024 * 1024: 17.9 seconds
BUG=v8:6189
R=dgozman@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2819423005
Cr-Commit-Position: refs/heads/master@{#44750}
- separated V8StackTraceImpl and AsyncStackTrace,
- V8Debugger owns all AsyncStackTrace and cleanup half of them when limit is reached (first created - first cleaned),
- V8StackTraceImpl, AsyncStackTrace and async-task-related tables in V8Debugger have weak reference to other async stack traces.
- async tasks are cleared with related async stacks.
BUG=v8:6189
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2816043006
Cr-Original-Commit-Position: refs/heads/master@{#44670}
Committed: 1bca73bc83
Review-Url: https://codereview.chromium.org/2816043006
Cr-Commit-Position: refs/heads/master@{#44694}
Reason for revert:
Speculative revert. Seems to block the roll:
https://codereview.chromium.org/2822983004/
Might require changing a browser test first?
Original issue's description:
> [inspector] avoid cloning of async call chains
>
> - separated V8StackTraceImpl and AsyncStackTrace,
> - V8Debugger owns all AsyncStackTrace and cleanup half of them when limit is reached (first created - first cleaned),
> - V8StackTraceImpl, AsyncStackTrace and async-task-related tables in V8Debugger have weak reference to other async stack traces.
> - async tasks are cleared with related async stacks.
>
> BUG=v8:6189
> R=dgozman@chromium.org
>
> Review-Url: https://codereview.chromium.org/2816043006
> Cr-Commit-Position: refs/heads/master@{#44670}
> Committed: 1bca73bc83TBR=dgozman@chromium.org,kozyatinskiy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6189
Review-Url: https://codereview.chromium.org/2825713002
Cr-Commit-Position: refs/heads/master@{#44678}
- separated V8StackTraceImpl and AsyncStackTrace,
- V8Debugger owns all AsyncStackTrace and cleanup half of them when limit is reached (first created - first cleaned),
- V8StackTraceImpl, AsyncStackTrace and async-task-related tables in V8Debugger have weak reference to other async stack traces.
- async tasks are cleared with related async stacks.
BUG=v8:6189
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2816043006
Cr-Commit-Position: refs/heads/master@{#44670}
This CL implements the proposed change to show information about
WebAssembly values and call frames via the inspector interface.
Each interpreted WebAssembly frame will have two scopes: A global scope
showing information about the memory (to be extended for globals), and
a local scope showing information about parameters, local variables, and
stack values.
Names of local variables will be added later.
R=ahaas@chromium.org, yangguo@chromium.org
BUG=v8:6245,v8:5822
Change-Id: I0a35fddd0a353933c86adf62083233b08098a2c7
Reviewed-on: https://chromium-review.googlesource.com/474865
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44633}
The format of the name section changed recently. It now contains
subsections of different type (currently for function names or local
variable names).
This CL changes our internal wasm module builders (in JS and C++) to
emit this new format, and changes the decoder to understand it.
We currently only parse the function name section, and ignore names of
local variables. I will later extend this to parse local variable names
when needed for debugging.
R=ahaas@chromium.org, rossberg@chromium.org
BUG=v8:6222
Change-Id: I2627160c25c9209a3f09abe0b88941ec48b24434
Reviewed-on: https://chromium-review.googlesource.com/470247
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Rossberg <rossberg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44492}
With flag we can debug injected-script-source in inspector-test or from DevTools frontend as regular user code. We need this when working on new features or debugging issues, it's for internal purpose only and doesn't provide any benefits for end users.
Flag: --expose-inspector-scripts
BUG=none
R=yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2767873002
Cr-Commit-Position: refs/heads/master@{#44039}
Indisputable profit:
- correct break location in next task (see tests),
- stepOver with async await never lands in random code (see related test and issue),
- inspector doesn't store current stepping state in debugger agent and completely trust V8 - step to new inspector-V8 design (I will finish design doc soon).
- willExecuteScript and didExecuteScript instrumentation could be removed from code base - reduce probability of future errors.
- finally - less code,
- stepping implementation in V8 makes another step to follow our stepping strategy (stepOut should do stepInto and break when exit current frame) (another one one page design doc based on @aandrey comment is coming),
- knowledge about existing of context groups is still inspector-only.
Disputable part is related to super rare scenario when in single isolate we have more then one context group id with enabled debugger agent:
- if one agent request break in own context (stepping, pause, e.t.c.) then we ignore all breaks in another agent. From one hand it looks like good: user clicks stepInto and they don't expect that execution could be paused by another instance of DevTools in unobservable from current DevTools way (second DevTools will get paused notification and run nested message loop). From another hand we shouldn't ignore breakpoints or debugger statement never. In general, I think that proposed behavior is rathe feature then issue.
- and disadvantage, on attempt to break in non-target context group id we just call StepOut until reach target context group id, step out call could deoptimize code in non related to current debugger agent context. But break could happens only in case of debugger stmt or breakpoint - sound like minor issue. Ignoring break on exception sounds like real issue but by module of rareness of this case I think we can ignore this.
Implementation details:
- when debugger agent request break for any reason it passes target context group id to V8Debugger - last agent requesting break is preferred.
- when V8Debugger gets BreakProgramRequested notification from V8, it checks current context group id against target context group id, if they match then just process break as usual otherwise makes StepOut action,
- debug.cc at the end of microtask if last_scheduled_action is StepOut, schedules StepIn and will break on first instruction in next task.
BUG=chromium:654022
R=dgozman@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2748503002
Cr-Commit-Position: refs/heads/master@{#44034}
Proposed behaviour:
- StepNext at return position go into next function call (no changes with current behavior, but implemented in v8::Debug instead of hack on inspector side);
- StepOut at return position go into next non-current function call.
We need this to have better stepping in cases with native functions, blackboxed functions and/or different embedder calls (e.g. event listeners).
New behavior could be illustrated with two examples (for more see stepping-with-natives-and-frameworks test):
- let's assume that we've blackboxed callAll function, this function just takes its arguments and call one after another:
var foo = () => 1;
callAll(foo, foo, () => 2);
If we break inside of first call of function foo. Then on..
..StepNext - we're able to reach second call of function foo,
..StepOut - we're able to reach () => 2 call.
- let's consider case with native function:
[1,2,3].map(x => x * 2)
If we break inside of first callback call, then with StepNext we can iterate through all calls of callback, with StepOut we go to next statement after .map call.
Implementation details:
- when we request break we schedule step-in function call for any step action at return position and for step-in at any position,
- when we request StepOut at return position - we mark current function as needed-to-be-ignored inside of PrepareStepIn(function) call,
- when we request StepOut at not return position - we set break at return position and ask debugger to just repeat last step action on next stepping-related break.
Design doc: https://docs.google.com/document/d/1ihXHOIhP_q-fJCA0e2EiXz_Zr3B08KMjaPifcaqZ60Q/edit
BUG=v8:6118,chromium:583193
R=dgozman@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2758483002
Cr-Commit-Position: refs/heads/master@{#44028}
In Isolate::CaptureSimpleStackTrace, we were ignoring interpreter entry
frames so far. This CLs changes this to gets the interpreted stack from
the wasm interpreter and add the frames to the FrameArray.
R=ahaas@chromium.org, titzer@chromium.org
BUG=v8:5822
Change-Id: I705909532ff28af412ff809da94522866eaa1c0d
Reviewed-on: https://chromium-review.googlesource.com/452378
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43772}
We emulate break by callling breakProgramCallback function in debugger context, we can just use HandleDebugBreak.
It allows us to move all stepping logic to debug.cc later and remove one usage of debugger context.
+ two minor issues fixed, see tests.
BUG=v8:5510
R=yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2738503006
Cr-Commit-Position: refs/heads/master@{#43750}
Add a mechanic to set these Builtin exception predictions per-Isolate
rather than per-Context in the Bootstrapper.
Also add Debugger tests which would fail without these prediction
modes set.
Does not yet test for AsyncFromSyncIteratorPrototypeReturn, as this
requires AsyncGenerators and `yield*` to be hit.
BUG=chromium:691875
R=yangguo@chromium.org, jgruber@chromium.org, gsathya@chromium.org
Change-Id: Ic2d2aba3870cce2f7321080f4278875edf253c76
Reviewed-on: https://chromium-review.googlesource.com/451967
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#43742}
Once we enabled --turbo by default we need to turn all the implications
off with --no-turbo as well. Chrome sets flags in V8 using SetFlagFromString,
which enforces the implications each time it is called. Therefore, if --turbo
is enabled by default, and an unrelated flag is set, the turbo implications are
enabled but not later disabled if we set --no-turbo. To fix this, add negative
implications as well.
BUG=chromium:692409
Change-Id: Iadb0ca542f49ba65c7419cda8c7a03636a8d5ba9
Reviewed-on: https://chromium-review.googlesource.com/451320
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43655}
This CL provide type with each break location, type could be: call, return or debugger statement.
BUG=chromium:432469
R=yangguo@chromium.org,dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2728563002
Cr-Commit-Position: refs/heads/master@{#43619}
This method could be called on pause and will do stepInto next scheduled callback if any will happen until next break.
First implementation support only callbacks chained by Promise.prototype.then.
BUG=chromium:432469
R=yangguo@chromium.org,dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2723273002
Cr-Commit-Position: refs/heads/master@{#43616}
If the imported wasm function is being debugged (i.e. redirects to the
interpreter), call it via the JS_TO_WASM stub, such that we can disable
the breakpoint later by patching the exported function.
This also contains a drive-by fix in wasm-translation.cc (for the case
that all known positions are bigger than the requested one).
R=titzer@chromium.org, kozyatinskiy@chromium.org
BUG=v8:5971, v8:5822
Review-Url: https://codereview.chromium.org/2720813002
Cr-Commit-Position: refs/heads/master@{#43583}
With inline breakpoints DevTools are ready for break position aligned breakpoints instead of statement aligned.
BUG=chromium:695236
R=dgozman@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2709263002
Cr-Commit-Position: refs/heads/master@{#43385}
In current implementation we don't support nested scheduled break at all. If one break was scheduled inside another and second one doesn't produce actual break (execution was in blackboxed code or no JavaScript was executed) then second one will clear first scheduled break even if any not blackboxed JavaScript will be executed later.
Ambiguous break reason is added for the case when we have more then one scheduled reason. "auxData" in this case contains object with array of { reason: reason, auxData: auxData } objects for each reason in 'reasons' property.
BUG=chromium:632405
Review-Url: https://codereview.chromium.org/2678313002
Cr-Commit-Position: refs/heads/master@{#43021}
- entries preview available even if debugger agent is disabled,
- less deprecated mirrors usage in debugger-script.js
- no usage of debugger context - zero probability of leaking it.
- better test coverage.
BUG=v8:5510
R=yangguo@chromium.org,jgruber@chromium.org,alph@chromium.org,luoe@chromium.org
Review-Url: https://codereview.chromium.org/2672213002
Cr-Commit-Position: refs/heads/master@{#42978}
V8DebuggerAgentImpl::m_skipAllPaused is moved to V8Debugger.
V8DebuggerAgentImpl::didPaused doesn't return shouldBreak flag and called only when break is required and stack trace presented.
V8DebuggerAgentImpl doesn't store paused context.
Logic of conversion step-next at return into step-in is moved to debug.cc.
BUG=none
R=dgozman@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2668763003
Cr-Commit-Position: refs/heads/master@{#42907}
Always execute the implicit return if we fell off the function bytes.
This is not considered an additional "step" as it is not executing a
wasm instruction.
Otherwise, we might pause at an invalid position (one after the
function bytes).
R=titzer@chromium.org
BUG=v8:5822
Review-Url: https://codereview.chromium.org/2650293003
Cr-Commit-Position: refs/heads/master@{#42730}
This CL adds --crankshaft and --no-always-opt flags to the tests that use
assertOptimized() and assertUnoptimized() respectively.
This CL also adds presubmit checks that ensure that tests have the proper
flags set.
BUG=v8:5890
Review-Url: https://codereview.chromium.org/2653753007
Cr-Commit-Position: refs/heads/master@{#42709}
With creation frame we can show additional information with description of each async stack trace, which could help user to understand where promises were chained.
At least in case of Promise.resolve().then(foo1).then(foo2) we would be able to show following stack trace for break in foo2 callback:
foo2 (test.js:14:2)
-- Promise.resolve (test.js:29:14)--
-- Promise.resolve (test.js:28:14)--
promiseThen (test.js:30:2)
More details: https://docs.google.com/document/d/1u19N45f1gSF7M39mGsycJEK3IPyJgIXCBnWyiPeuJFE
BUG=v8:5738
R=dgozman@chromium.org,gsathya@chromium.org
Review-Url: https://codereview.chromium.org/2648873002
Cr-Commit-Position: refs/heads/master@{#42682}
- kDebugPromiseCreated(task, parent_task)
This event occurs when promise is created (PromiseHookType::Init). V8Debugger uses this event to maintain task -> parent task map.
- kDebugEnqueueAsyncFunction(task)
This event occurs when first internal promise for async function is created. V8Debugger collects stack trace at this point.
- kDebugEnqueuePromiseResolve(task),
This event occurs when Promise fulfills with resolved status. V8Debugger collects stack trace at this point.
- kDebugEnqueuePromiseReject(task),
This event occurs when Promise fulfills with rejected status. V8Debugger collects stack trace at this point.
- kDebugPromiseCollected,
This event occurs when Promise is collected and no other chained callbacks can be added. V8Debugger removes information about async task for this promise.
- kDebugWillHandle,
This event occurs when chained promise function (either resolve or reject handler) is called. V8Debugger installs parent promise's stack (based on task -> parent_task map) as current if available or current promise's scheduled stack otherwise.
- kDebugDidHandle,
This event occurs after chained promise function has finished. V8Debugger restores asynchronous call chain to previous one.
With this change all instrumentation calls are related to current promise (before WillHandle and DidHandle were related to next async task).
Before V8Debugger supported only the following:
- asyncTaskScheduled(task1)
- asyncTaskStarted(task1)
- asyncTaskFinished(task1)
Now V8Debugger supports the following:
- asyncTaskScheduled(parent_task)
..
- asyncTaskCreated(task, parent_task),
- asyncTaskStarted(task), uses parent_task scheduled stack
- asyncTaskScheduled(task)
- asyncTaskFinished(task)
Additionally: WillHandle and DidHandle were migrated to PromiseHook API.
More details: https://docs.google.com/document/d/1u19N45f1gSF7M39mGsycJEK3IPyJgIXCBnWyiPeuJFE
BUG=v8:5738
R=dgozman@chromium.org,gsathya@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2650803003
Cr-Commit-Position: refs/heads/master@{#42644}
V8 has internal mechanism to ignore steps and breaks inside internal scripts, in this CL it's reused for blackboxing implementation.
Advantages:
- much faster blackboxing implementation (before we at least wrap and collect current call stack for each step),
- get rid of StepFrame action and potential pause in blackboxed code after N StepFrame steps,
- simplification of debugger agent logic.
Disadvtanges:
- currently when user was paused in blackboxed code (e.g. on breakpoint) and then makes step action, debugger ignores blackboxed state of the script and allows to use step actions as usual - this behavior is regressed, we still able to support it on frontend side.
Current state and proposed changes for blackboxing: https://docs.google.com/document/d/1hnzaXPAN8_QC5ENxIgxgMNDbXLraM_OXT73rAyijTF8/edit?usp=sharing
BUG=v8:5842
R=yangguo@chromium.org,dgozman@chromium.org,alph@chromium.org
Review-Url: https://codereview.chromium.org/2633803002
Cr-Commit-Position: refs/heads/master@{#42614}
Currently V8 context just crashes on OOM, with this CL backend will send paused notification with OOM reason before OOM and will increase heap limits to allow further debugging on pause.
BUG=chromium:675911
Review-Url: https://codereview.chromium.org/2624543004
Cr-Commit-Position: refs/heads/master@{#42480}
V8InspectorSession::schedulePauseOnNextStatement and V8InspectorSession::cancelPauseOnNextStatement are now exposed in inspector tests. These methods are required at least for better blackboxing tests.
BUG=v8:5842
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2636613002
Cr-Commit-Position: refs/heads/master@{#42469}
Reason for revert:
OK, the failure really does seem to be due to this patch: It triggers Clang to crash
FAILED: obj/test/unittests/unittests/function-body-decoder-unittest.obj
E:\b\build\slave\cache\cipd\goma/gomacc.exe ../../third_party/llvm-build/Release+Asserts/bin/clang-cl.exe /nologo /showIncludes /FC @obj/test/unittests/unittests/function-body-decoder-unittest.obj.rsp /c ../../test/unittests/wasm/function-body-decoder-unittest.cc /Foobj/test/unittests/unittests/function-body-decoder-unittest.obj /Fd"obj/test/unittests/unittests_cc.pdb"
Assertion failed: (NumGaps == 0 || Bias < MaxDefRange) && "large ranges should not have gaps", file E:\b\build\slave\win_upload_clang\build\src\third_party\llvm\lib\MC\MCCodeView.cpp, line 531
Wrote crash dump file "C:\Users\CHROME~2\AppData\Local\Temp\goma_temp.5068\clang-cl.exe-563144.dmp"
Let's leave it out for now.
Original issue's description:
> Reland of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #1 id:1 of https://codereview.chromium.org/2628883006/ )
>
> Reason for revert:
> Try a reland; this might not have been the source of tree-closing.
>
> Original issue's description:
> > Revert of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #3 id:40001 of https://codereview.chromium.org/2630553002/ )
> >
> > Reason for revert:
> > Caused tree to close by failing compilation:
> >
> > https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20clang/builds/4451
> >
> > Original issue's description:
> > > [wasm] Enforce that function bodies end with the \"end\" opcode.
> > >
> > > R=rossberg@chromium.org
> > > BUG=chromium:575167
> > >
> > > Review-Url: https://codereview.chromium.org/2630553002
> > > Cr-Commit-Position: refs/heads/master@{#42286}
> > > Committed: fcc6e85ec6
> >
> > TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
> > # Skipping CQ checks because original CL landed less than 1 days ago.
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=chromium:575167
> >
> > Review-Url: https://codereview.chromium.org/2628883006
> > Cr-Commit-Position: refs/heads/master@{#42287}
> > Committed: 1d32a3989b
>
> TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:575167
>
> Review-Url: https://codereview.chromium.org/2628203003
> Cr-Commit-Position: refs/heads/master@{#42296}
> Committed: e539bd8e0eTBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:575167
Review-Url: https://codereview.chromium.org/2633583002
Cr-Commit-Position: refs/heads/master@{#42298}
Reason for revert:
Try a reland; this might not have been the source of tree-closing.
Original issue's description:
> Revert of [wasm] Enforce that function bodies end with the \"end\" opcode. (patchset #3 id:40001 of https://codereview.chromium.org/2630553002/ )
>
> Reason for revert:
> Caused tree to close by failing compilation:
>
> https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20clang/builds/4451
>
> Original issue's description:
> > [wasm] Enforce that function bodies end with the \"end\" opcode.
> >
> > R=rossberg@chromium.org
> > BUG=chromium:575167
> >
> > Review-Url: https://codereview.chromium.org/2630553002
> > Cr-Commit-Position: refs/heads/master@{#42286}
> > Committed: fcc6e85ec6
>
> TBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:575167
>
> Review-Url: https://codereview.chromium.org/2628883006
> Cr-Commit-Position: refs/heads/master@{#42287}
> Committed: 1d32a3989bTBR=mtrofin@chromium.org,rossberg@chromium.org,jbroman@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:575167
Review-Url: https://codereview.chromium.org/2628203003
Cr-Commit-Position: refs/heads/master@{#42296}
... which were done after the promise has been resolved.
Goal of this CL - change promise instrumentation to support better callbacks, chained after promise resolution and prepare instrumentation for adding new asyncTaskCreated instrumentation.
Instrumentation changes:
- asyncTaskScheduled(recurring) when promise is fulfilled or rejected,
- asyncTaskCancelled when promise is collected (since [1] we can be sure that promise will survive scheduled microtasks).
Minor changes:
- async task type in inspector <-> debugger API transferred by enum instead of string,
- Debug manages async task ids based on promise objects.
More details: https://docs.google.com/document/d/1u19N45f1gSF7M39mGsycJEK3IPyJgIXCBnWyiPeuJFE
[1] https://codereview.chromium.org/2581503003/
BUG=chromium:632829,v8:5738
R=dgozman@chromium.org,yangguo@chromium.org,gsathya@chromium.org
Review-Url: https://codereview.chromium.org/2578923002
Cr-Commit-Position: refs/heads/master@{#42178}
This is more renaming work to comply with the naming in the public
design repository. E.g. types are called "value types" and we no longer
refer to ASTs.
R=clemensh@chromium.org
BUG=
Review-Url: https://codereview.chromium.org/2594993002
Cr-Commit-Position: refs/heads/master@{#41891}
*and* report all "virtual" wasm scripts right when the wasm script is
registered at the inspector.
WasmScript is a subtype of Script, with the cast checking that it is
actually a wasm script.
This layout makes it quite easy to implement functionality that is only
available for wasm scripts, and allows to later directly use the
WasmCompiledModule instead of the i::Script for backing the
debug::WasmScript. We might also add virtual methods to
provide different implementations for GetSourcePosition, Source and
others.
DisassembleWasmFunction now also becomes a method of this class instead
of a static function on the DebugInterface.
The WasmTranslation now uses the new WasmScript type instead of the
Script wrapper, and also registers all virtual wasm scripts immediately
when the wasm script is made public to the inspector (when the wasm
module is created).
R=yangguo@chromium.org,dgozman@chromium.org,titzer@chromium.org
BUG=chromium:613110,chromium:659715
Review-Url: https://codereview.chromium.org/2531163010
Cr-Commit-Position: refs/heads/master@{#41519}
If we just call CreateDebugInfo in GetPossibleBreakpoints then we won't call PrepareFunctionForBreakPoints and won't be able to step into this function or pause at breakpoint inside.
BUG=v8:5695
R=dgozman@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2540943002
Cr-Commit-Position: refs/heads/master@{#41401}
This exposes scopes for suspended generator objects by adding a
[[Scopes]] internal property to generator objects, similar to how
scopes for functions currently not on the stack are handled.
BUG=chromium:667286
Review-Url: https://codereview.chromium.org/2516973003
Cr-Commit-Position: refs/heads/master@{#41244}
Descriptions for (typed)arrays will use parenthesis instead of square brackets
"Array(10)" instead of "Array[10]". This CL also adds size hints to descriptions
of maps and sets.
Related CL for DevTools: https://codereview.chromium.org/2524913002/
BUG=405845
Review-Url: https://codereview.chromium.org/2521853003
Cr-Commit-Position: refs/heads/master@{#41237}
When disassembling functions for the inspector, we used an internal
text representation before. This CL implements the official text
format like it is understood by the spec interpreter.
Example output:
func $main (param i32) (result i32)
block i32
get_local 0
i32.const 2
i32.lt_u
if
i32.const -2
return
end
get_local 0
call_indirect 0
end
R=rossberg@chromium.org, titzer@chromium.org
BUG=chromium:659715
Review-Url: https://codereview.chromium.org/2520943002
Cr-Commit-Position: refs/heads/master@{#41172}
Inspector uses this type for all internal scripts, e.g. injected-script-source.js. Scripts with new type are not reported by remote debugging protocol, frames from them are ignored.
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
BUG=none
R=yangguo@chromium.org,dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2499273003
Cr-Commit-Position: refs/heads/master@{#41056}
Before, we allocated one script per function per instance, and each
script referenced the wasm instance and the function index. Now we only
allocate one script per compiled wasm module, so the script also only
references this WasmCompiledModule, which causes changes to many interfaces.
Instead of fixing the disassemble API only used via debug.js, I decided
to drop it for now. Some later CL will reintroduce it via
DebugInterface.
BUG=v8:5530,chromium:659715
R=yangguo@chromium.org, titzer@chromium.orgCC=jgruber@chromium.org
Review-Url: https://codereview.chromium.org/2493823003
Cr-Commit-Position: refs/heads/master@{#41004}
We are removing use of the debugger context. When the debugger triggers
compilation, we may not have a context from which to create a JSArray.
R=ishell@chromium.org
BUG=chromium:664577
Review-Url: https://codereview.chromium.org/2479123002
Cr-Commit-Position: refs/heads/master@{#40956}
We are removing use of the debugger context. When the debugger triggers
compilation, we may not have a context from which to create a JSArray.
R=ishell@chromium.org
Review-Url: https://codereview.chromium.org/2479123002
Cr-Commit-Position: refs/heads/master@{#40884}
This adds information about an exception's caught/uncaught status to the
Runtime.paused event in the data parameter:
{
"method": "Debugger.paused",
"params": {
"callFrames": [
[...]
],
"data": {
"description": "666",
"type": "number",
"uncaught": true, <---
"value": 666
},
"hitBreakpoints": [],
"reason": "exception"
}
}
BUG=v8:5530
Review-Url: https://codereview.chromium.org/2488733003
Cr-Commit-Position: refs/heads/master@{#40875}
Currently function like "() => 239" contains offset 3 as begin of function and 8 as end of function.
This CL changes this to 6 and 9 respectively.
BUG=chromium:566801
R=yangguo@chromium.org,dgozman@chromium.org
TBR=adamk@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
Review-Url: https://codereview.chromium.org/2488493003
Cr-Commit-Position: refs/heads/master@{#40864}
This method iterates through all shared function info which are related to passed script, compiles debug code for SFI in range if needed and returns possible break locations.
BUG=chromium:566801
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
Review-Url: https://codereview.chromium.org/2465553003
Cr-Commit-Position: refs/heads/master@{#40783}
In the asm.js to wasm pipeline, we generate an entry function with
BUILTIN code, but still attached to a TYPE_NORMAL script.
This fix avoids trying to set a breakpoint there, resulting in a crash
on DCHECK(shared->HasDebugInfo()).
Also add two inspector tests to track regressions.
BUG=v8:5568
R=titzer@chromium.org,mstarzinger@chromium.org
Review-Url: https://codereview.chromium.org/2457433002
Cr-Commit-Position: refs/heads/master@{#40633}
* introduced v8::DebugInterface::ChangeBreakOnException(Isolate*,ExceptionBreakState);
* migrated inspector to new API;
* added cctest for new API;
* added inspector test for setPauseOnExceptionState.
BUG=chromium:652939,v8:5510
R=dgozman@chromium.org,yangguo@chromium.org
Review-Url: https://chromiumcodereview.appspot.com/2396193002
Cr-Commit-Position: refs/heads/master@{#40413}
