- 01 Oct, 2021 1 commit
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Benedikt Meurer authored
Previously we'd treat %_AsyncFunctionReject (and %AsyncFunctionReject) as side-effect free (in async functions), but that's not correct, since promise rejections have side-effects (at the very least triggering the unhandled promise rejection machinery in the browser). This required a minor refactoring as previously we'd classify functions as side-effecting or not depending on whether they contain any calls to side-effecting intrinsics, no matter whether this call is actually executed or not. That would break REPL mode however if we'd generally treat all async functions with %_AsyncFunctionReject intrinsic calls as side-effecting, so instead of performing the intrinsic checks ahead of time, we now perform the test at execution time. Before: https://imgur.com/5BvJP9d.png After: https://imgur.com/10FanNr.png Fixed: chromium:1249275 Change-Id: Ib06f945ba21f1e06ee9b13a1363fad342464fd9a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3197712 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Commit-Queue: Simon Zünd <szuend@chromium.org> Auto-Submit: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Simon Zünd <szuend@chromium.org> Cr-Commit-Position: refs/heads/main@{#77183}
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- 17 May, 2021 1 commit
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Philip Pfaffe authored
This is a reland of 0ce36e7d The reland includes two fixes: - Move the EvaluateGlobalForTesting into libv8 to avoid linkage issues and to avoid having to export ThreadLocalTop symbols. - Give the ExecutionMode enum a uint8_t backing type to avoid endianess issues. Original change's description: > [ic] Fix handling of API properties with side effects > > DebugEvaluate can evaluate expressions in side-effect-free mode, where > any operation that would cause observable side effects throws an > exception. Currently, when accessors are backed by callbacks, it's > possible that ICs call those accessors directly, bypassing the > side-effect checks. This CL introduces a bailouts to runtime in those > cases. > > Fixed: chromium:1201781 > Also-By: ishell@chromium.org, pfaffe@chromium.org > Change-Id: Ie53bfb2bff7b3420f2b27091e8df6723382cf53c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2857634 > Commit-Queue: Philip Pfaffe <pfaffe@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#74507} Fixes: v8:11761 Change-Id: I58cde8bd11ba0fc9d83adc19fa87733628ab6c13 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2891829Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Commit-Queue: Philip Pfaffe <pfaffe@chromium.org> Cr-Commit-Position: refs/heads/master@{#74602}
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- 12 May, 2021 1 commit
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Maya Lekova authored
This reverts commit 0ce36e7d. Reason for revert: Speculative revert for a Chromium build breakage causing a blocked roll - https://bugs.chromium.org/p/v8/issues/detail?id=11761 Original change's description: > [ic] Fix handling of API properties with side effects > > DebugEvaluate can evaluate expressions in side-effect-free mode, where > any operation that would cause observable side effects throws an > exception. Currently, when accessors are backed by callbacks, it's > possible that ICs call those accessors directly, bypassing the > side-effect checks. This CL introduces a bailouts to runtime in those > cases. > > Fixed: chromium:1201781 > Also-By: ishell@chromium.org, pfaffe@chromium.org > Change-Id: Ie53bfb2bff7b3420f2b27091e8df6723382cf53c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2857634 > Commit-Queue: Philip Pfaffe <pfaffe@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#74507} Change-Id: Ifb5c24682af29572591d436ab92b0304058e99af No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2891650 Auto-Submit: Maya Lekova <mslekova@chromium.org> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Cr-Commit-Position: refs/heads/master@{#74515}
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- 11 May, 2021 1 commit
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Philip Pfaffe authored
DebugEvaluate can evaluate expressions in side-effect-free mode, where any operation that would cause observable side effects throws an exception. Currently, when accessors are backed by callbacks, it's possible that ICs call those accessors directly, bypassing the side-effect checks. This CL introduces a bailouts to runtime in those cases. Fixed: chromium:1201781 Also-By: ishell@chromium.org, pfaffe@chromium.org Change-Id: Ie53bfb2bff7b3420f2b27091e8df6723382cf53c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2857634 Commit-Queue: Philip Pfaffe <pfaffe@chromium.org> Reviewed-by:
Igor Sheludko <ishell@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#74507}
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- 29 Dec, 2020 1 commit
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Benedikt Meurer authored
We accidentally compiled the source for Debug-Evaluate on Wasm frames twice, and used the first script result as outer function info for the second, actual compile (which goes via the `eval` machinery). Also unify DebugEvaluate::Local and DebugEvaluate::WebAssembly, since they are essentially very similar, except for the context. Bug: chromium:1127914 Change-Id: I8eb85c128c05ab1d4fcb73061de89b0942d1e5c8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2605198 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Auto-Submit: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#71890}
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- 29 Sep, 2020 1 commit
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Philip Pfaffe authored
This is the first step to support debug evaluate on wasm call frames. This CL enables calling evaluateOnCallFrame when a wasm frame is selected, which before always returned undefined. The CL mirrors global evaluation, and actually enabling inspecting the wasm frame will be part of a second change. Bug: chromium:1127914 Change-Id: If0ad0be7c402d85ab2a8e95376398f4f4ef94948 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2436338 Commit-Queue: Philip Pfaffe <pfaffe@chromium.org> Reviewed-by:
Simon Zünd <szuend@chromium.org> Cr-Commit-Position: refs/heads/master@{#70198}
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- 06 Aug, 2020 1 commit
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Leszek Swirski authored
Changes the isolate's string table into an off-heap structure. This allows the string table to be resized without allocating on the V8 heap, and potentially triggering a GC. This allows existing strings to be inserted into the string table without requiring allocation. This has two important benefits: 1) It allows the deserializer to insert strings directly into the string table, rather than having to defer string insertion until deserialization completes. 2) It simplifies the concurrent string table lookup to allow resizing the table inside the write lock, therefore eliminating the race where two concurrent lookups could both resize the table. The off-heap string table has the following properties: 1) The general hashmap behaviour matches the HashTable, i.e. open addressing, power-of-two sized, quadratic probing. This could, of course, now be changed. 2) The empty and deleted sentinels are changed to Smi 0 and 1, respectively, to make those comparisons a bit cheaper and not require roots access. 3) When the HashTable is resized, the old elements array is kept alive in a linked list of previous arrays, so that concurrent lookups don't lose the data they're accessing. This linked list is cleared by the GC, as then we know that all threads are in a safepoint. 4) The GC treats the hash table entries as weak roots, and only walks them for non-live reference clearing and for evacuation. 5) Since there is no longer a FixedArray to serialize for the startup snapshot, there is now a custom serialization of the string table, and the string table root is considered unserializable during weak root iteration. As a bonus, the custom serialization is more efficient, as it skips non-string entries. As a drive-by, rename LookupStringExists_NoAllocate to TryStringToIndexOrLookupExisting, to make it clearer that it returns a non-string for the case when the string is an array index. As another drive-by, extract StringSet into a separate header. Bug: v8:10729 Change-Id: I9c990fb2d74d1fe222920408670974a70e969bca Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2339104 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#69270}
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- 22 Jun, 2020 1 commit
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Dan Elphick authored
This changes black/white list to block/allow list. Bug: v8:10619 Change-Id: Id55d72f90891670ca57b62dfeb6b3251025927dc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2257228Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Dan Elphick <delphick@chromium.org> Cr-Commit-Position: refs/heads/master@{#68464}
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- 06 Nov, 2019 2 commits
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Simon Zünd authored
There already exists a optional boolean flag 'replMode' for the 'Runtime.evaluate' command. This CL ferries the flag from the inspector to DebugEvaluate::Global. The existing DebugEvaluate::GlobalREPL is removed in favor of a the REPLMOde enum to reduce code duplication. Bug: chromium:1018158 Change-Id: Iafb43a3015b6876a02ac0db6cdfcac2cfa388862 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1881149 Commit-Queue: Simon Zünd <szuend@chromium.org> Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#64801}
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Simon Zünd authored
Design doc: bit.ly/v8-repl-mode This CL adds a new REPL mode that can be used via DebugEvaluate::GlobalREPL. REPL mode only implements re-declaration of 'let' bindings at the moment. Example: REPL Input 1: let x = 21; REPL Input 2: let x = 42; This would normally throw a SyntaxError, but works in REPL mode. The implementation is done by: - Setting a 'repl mode' bit on {Script}, {ScopeInfo}, {ParseInfo} and script {Scope}. - Each global let declaration still gets a slot reserved in the respective {ScriptContext}. - When a new REPL mode {ScriptContext} is created, name clashes for let bindings are not reported as errors. - Declarations, loads and stores for global let in REPL mode are now "load/store global" instead of accessing their respective context slot directly. This causes a lookup in the ScriptContextTable where the found slot for each name is guaranteed to be the same (the first one). Bug: chromium:1004193, chromium:1018158 Change-Id: Ia6ab526b9f696400dbb8bfb611a4d43606119a47 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1876061 Commit-Queue: Simon Zünd <szuend@chromium.org> Reviewed-by:
Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#64793}
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- 27 Sep, 2019 1 commit
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Benedikt Meurer authored
This new optional parameter controls whether "Runtime.evaluate" ignores break points and previous "Debugger.pause" calls while evaluating the expression. This will be used for live expressions, which should never interfere with debugging. Bug: chromium:1001216 Change-Id: Ie37f6616a4a1cae40399b79255ab92fb254d91b5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1826664 Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#64018}
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- 11 Sep, 2019 1 commit
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Simon Zünd authored
This CL changes how variables are resolved during debug evaluate. We now re-parse the whole script when creating a ScopeIterator. This gives us accurate scope information for all parent scopes of the closure in which we stopped. Using this information, we build blacklists of stack-allocated variables. Each context on the chain in between the closure context up to the original native context is wrapped in a debug-evaluate context with such a blacklist attached. Variable lookup for debug-evalute contexts then works as follows: 1) Look up in the materialized stack variables (stayed the same). 2) Check the blacklist to find out whether to abort further lookup. 3) Look up in the original context. Steps 1-3 is repeated for each debug-evaluate context, since they mirror the original context chain. R=ulan@chromium.org, yangguo@chromium.org Change-Id: Ied8e5786772c70566da9627ee3b7eff066fba2b4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1795354Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Commit-Queue: Simon Zünd <szuend@chromium.org> Cr-Commit-Position: refs/heads/master@{#63666}
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- 12 Jul, 2019 1 commit
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Peter Marshall authored
Everyone was getting a copy of this through debug.h. Bug: v8:9396 Change-Id: I5189cb4bf27a3381768b0be479d7b3d60dec20bb Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1695472 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Benedikt Meurer <bmeurer@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Cr-Commit-Position: refs/heads/master@{#62670}
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- 23 May, 2019 1 commit
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Yang Guo authored
TBR=bmeurer@chromium.org,leszeks@chromium.org Bug: v8:9247 Change-Id: I8d14d0192ea8c705f8274e8e61a162531826edb6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624220Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Reviewed-by:
Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#61769}
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- 19 Dec, 2018 1 commit
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Yang Guo authored
Bug: v8:8558 Change-Id: Ib179947fb1b00f32a574ae3084e3107cc264a851 Reviewed-on: https://chromium-review.googlesource.com/c/1369951 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#58345}
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- 04 Sep, 2018 1 commit
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Yang Guo authored
Also extend the API to reflect this new feature. R=jgruber@chromium.org, szuend@google.com, ulan@chromium.org Bug: v8:8125 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: Ic7a7604a8c663ba04b324eb8902ff325a25654e7 Reviewed-on: https://chromium-review.googlesource.com/1202087Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#55604}
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- 05 Jul, 2018 1 commit
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Leszek Swirski authored
Replace Is<oddball>(GetIsolate()) calls with a no-parameter version that goes through ReadOnlyRoots, and add a version that takes a ReadOnlyRoots if that is available in the parent (but Isolate isn't). Also opportunistically clean up a few places where ReadOnlyRoots are available but we still pass in an Isolate parameter. TBR=yangguo@chromium.org Bug: v8:7786 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: Icc0b8a7d8f9c6b84c0ec8fe771fcfb75c9dc5468 Reviewed-on: https://chromium-review.googlesource.com/1126302Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Camillo Bruni <cbruni@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Dan Elphick <delphick@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#54245}
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- 28 Jun, 2018 1 commit
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Ross McIlroy authored
Merges DebugInfo field into the function_identifier field, storing the function identifier in the DebugInfo. Also moves some debugging_hints bits to the SFI flags, and others to the DebugInfo. Finally, changes the logic to store debugger patched bytecode array on the SFI instead of the DebugInfo, simplifying the logic in the InterpreterEntryTrampoline. BUG=chromium:818642,chromium:783853 TBR=hpayer@chromium.org Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: If440080c0f08fac4fb96f5e18dcc0eb9b86d4821 Reviewed-on: https://chromium-review.googlesource.com/1115819 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#54081}
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- 21 Jun, 2018 1 commit
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Dan Elphick authored
Pass Isolate directly into CallHandlerInfo methods so that calls to GetHeap can be removed. Bug: v8:7786 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: If28fbbd65530b01b69786c3e743754cff3b1ba3a Reviewed-on: https://chromium-review.googlesource.com/1107926Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Dan Elphick <delphick@chromium.org> Cr-Commit-Position: refs/heads/master@{#53945}
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- 20 Jun, 2018 1 commit
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Leszek Swirski authored
Bug: v8:7786 Change-Id: I369eb0bf32d89603b6b944c2bb8fe402a16e429b Reviewed-on: https://chromium-review.googlesource.com/1104423 Commit-Queue: Leszek Swirski <leszeks@chromium.org> Reviewed-by:
Dan Elphick <delphick@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#53880}
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- 18 Jun, 2018 1 commit
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Toon Verwaest authored
Reland "[debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes." Change-Id: I0ad97057600d0a0f1dd4c71d5f8245dafb908154 Reviewed-on: https://chromium-review.googlesource.com/1103576Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#53781}
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- 15 Jun, 2018 2 commits
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Yang Guo authored
Revert "[debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes." This reverts commit 9e27d473. Reason for revert: Layout Test failures: https://ci.chromium.org/buildbot/client.v8.fyi/V8-Blink%20Linux%2064/24123 Original change's description: > [debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes. > > This CL also bottlenecks all current scope handling in the ScopeIterator, and cleans up frame handling in debug-frames and the deoptimizer. > > Change-Id: I061922a356ce17794262f8d77d5d7c824558fc50 > Reviewed-on: https://chromium-review.googlesource.com/1095094 > Commit-Queue: Toon Verwaest <verwaest@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#53741} TBR=yangguo@chromium.org,jarin@chromium.org,neis@chromium.org,jgruber@chromium.org,verwaest@chromium.org Change-Id: I892856056258e3c68b36409b8b2d69e7686fc385 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/1102377 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#53756}
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Toon Verwaest authored
Reland "[debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes." This is a reland of 9e27d473 Original change's description: > [debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes. > > This CL also bottlenecks all current scope handling in the ScopeIterator, and cleans up frame handling in debug-frames and the deoptimizer. > > Change-Id: I061922a356ce17794262f8d77d5d7c824558fc50 > Reviewed-on: https://chromium-review.googlesource.com/1095094 > Commit-Queue: Toon Verwaest <verwaest@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#53741} Change-Id: I05262fef66d852876b9bb2869339053629c9b51d Reviewed-on: https://chromium-review.googlesource.com/1102297Reviewed-by:
Yang Guo <yangguo@chromium.org> Commit-Queue: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/master@{#53751}
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- 14 Jun, 2018 2 commits
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Clemens Hammacher authored
Revert "[debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes." This reverts commit 9e27d473. Reason for revert: Fails MSan (use of uninitialized value): https://ci.chromium.org/buildbot/client.v8/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/21562 Original change's description: > [debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes. > > This CL also bottlenecks all current scope handling in the ScopeIterator, and cleans up frame handling in debug-frames and the deoptimizer. > > Change-Id: I061922a356ce17794262f8d77d5d7c824558fc50 > Reviewed-on: https://chromium-review.googlesource.com/1095094 > Commit-Queue: Toon Verwaest <verwaest@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Cr-Commit-Position: refs/heads/master@{#53741} TBR=yangguo@chromium.org,jarin@chromium.org,neis@chromium.org,jgruber@chromium.org,verwaest@chromium.org Change-Id: Ief87c1e79fa2ec40f52fd747ec4ebbacf0da798b No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/1101377Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#53743}
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Toon Verwaest authored
[debugger] Rewrite the ScopeIterator/DebugEvaluate to use Scope rather than ScopeInfo for inner scopes. This CL also bottlenecks all current scope handling in the ScopeIterator, and cleans up frame handling in debug-frames and the deoptimizer. Change-Id: I061922a356ce17794262f8d77d5d7c824558fc50 Reviewed-on: https://chromium-review.googlesource.com/1095094 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by:
Georg Neis <neis@chromium.org> Reviewed-by:
Jaroslav Sevcik <jarin@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#53741}
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- 11 Apr, 2018 1 commit
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Alexey Kozyatinskiy authored
This CL allows SetPrototypeAdd and ArrayIteratorPrototypeNext to be called on temporary objects during side effect free evaluation. Bug: v8:7588 Change-Id: Id77848e48d98c243de91bc6c0fae5a0877e693d4 Reviewed-on: https://chromium-review.googlesource.com/998439 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#52548}
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- 05 Apr, 2018 1 commit
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Alexey Kozyatinskiy authored
This is a reland of 7a2c3713 Original change's description: > [debug] introduced runtime side effect check > > This CL demonstrates minimum valuable addition to existing debug evaluate > without side effects mechanism. > With this CL user can evaluate expressions like: > [a,b] // create any kind of temporary array literals > [a,b].reduce((x,y) => x + y, 0); // use reduce method > [1,2,3].fill(2); // change temporary arrays > > The core idea: any change of the object created during evaluation without > side effects is side effect free. As soon as we try to store this temporary > object to object existed before evaluation we will terminate execution. > > Implementation: > - track all objects allocated during evaluation and mark them as temporary, > - patch all bytecodes which change objects. > > A little more details (including performance analysis): [1]. > > [1] https://docs.google.com/document/d/10qqAtZADspPnpYa6SEdYRxrddfKIZJIzbLtGpsZQkRo/edit# > > Bug: v8:7588 > Change-Id: I69f7b96e1ebd7ad0022219e8213211c7be72a111 > Reviewed-on: https://chromium-review.googlesource.com/972615 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#52370} Bug: v8:7588 Change-Id: Ibc92bf19155f2ddaedae39b0c576b994e84afcf8 Reviewed-on: https://chromium-review.googlesource.com/996760Reviewed-by:
Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#52373}
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- 04 Apr, 2018 2 commits
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Aleksey Kozyatinskiy authored
This reverts commit 7a2c3713. Reason for revert: msan is broken Original change's description: > [debug] introduced runtime side effect check > > This CL demonstrates minimum valuable addition to existing debug evaluate > without side effects mechanism. > With this CL user can evaluate expressions like: > [a,b] // create any kind of temporary array literals > [a,b].reduce((x,y) => x + y, 0); // use reduce method > [1,2,3].fill(2); // change temporary arrays > > The core idea: any change of the object created during evaluation without > side effects is side effect free. As soon as we try to store this temporary > object to object existed before evaluation we will terminate execution. > > Implementation: > - track all objects allocated during evaluation and mark them as temporary, > - patch all bytecodes which change objects. > > A little more details (including performance analysis): [1]. > > [1] https://docs.google.com/document/d/10qqAtZADspPnpYa6SEdYRxrddfKIZJIzbLtGpsZQkRo/edit# > > Bug: v8:7588 > Change-Id: I69f7b96e1ebd7ad0022219e8213211c7be72a111 > Reviewed-on: https://chromium-review.googlesource.com/972615 > Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#52370} TBR=ulan@chromium.org,rmcilroy@chromium.org,yangguo@chromium.org,kozyatinskiy@chromium.org,leszeks@chromium.org Change-Id: Ied1739c6308b13a4981189e0999f5912316cf456 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:7588 Reviewed-on: https://chromium-review.googlesource.com/996135Reviewed-by:
Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Cr-Commit-Position: refs/heads/master@{#52371}
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Alexey Kozyatinskiy authored
This CL demonstrates minimum valuable addition to existing debug evaluate without side effects mechanism. With this CL user can evaluate expressions like: [a,b] // create any kind of temporary array literals [a,b].reduce((x,y) => x + y, 0); // use reduce method [1,2,3].fill(2); // change temporary arrays The core idea: any change of the object created during evaluation without side effects is side effect free. As soon as we try to store this temporary object to object existed before evaluation we will terminate execution. Implementation: - track all objects allocated during evaluation and mark them as temporary, - patch all bytecodes which change objects. A little more details (including performance analysis): [1]. [1] https://docs.google.com/document/d/10qqAtZADspPnpYa6SEdYRxrddfKIZJIzbLtGpsZQkRo/edit# Bug: v8:7588 Change-Id: I69f7b96e1ebd7ad0022219e8213211c7be72a111 Reviewed-on: https://chromium-review.googlesource.com/972615 Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#52370}
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- 12 Mar, 2018 1 commit
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Yang Guo authored
R=clemensh@chromium.org, jgruber@chromium.org Bug: v8:178 Change-Id: I6f180c5539935cd91cfbbb777d5900a55c681b1f Reviewed-on: https://chromium-review.googlesource.com/957094 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#51867}
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- 06 Mar, 2018 1 commit
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Yang Guo authored
Instead of a hard-coded list of function addresses, we now use a flag on the AccessorInfo object to annotate whether the getter can cause any side effect. Future changes will extend this to InterceptorInfo, CallHandlerInfo, and expose this through the API. R=jgruber@chromium.org, luoe@chromium.org Bug: v8:7515 Change-Id: Id0fedf03493c3bd81913557a5681f8f63660f6a4 Reviewed-on: https://chromium-review.googlesource.com/945909 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#51756}
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- 28 Feb, 2018 1 commit
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Erik Luo authored
Bug: chromium:810176 Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I16e4148434f5cbf44058e1aa5f01693bcba82d0a Reviewed-on: https://chromium-review.googlesource.com/932943 Commit-Queue: Erik Luo <luoe@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Dmitry Gozman <dgozman@chromium.org> Cr-Commit-Position: refs/heads/master@{#51640}
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- 29 Nov, 2017 1 commit
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Michael Starzinger authored
This fixes debug-evaluate in the presence of a de-materialized function object. The creation of an arguments object is now requested based on a given frame (potentially inlined) instead of a target function. It makes sure that multiple calls to {StandardFrame::Summarize} don't cause any confusion when they give back non-identical function objects. R=jgruber@chromium.org TEST=debugger/debug/debug-evaluate-arguments BUG=chromium:788647 Change-Id: I575bb6cb20b4657dc09019e631b5d6e36c1b5189 Reviewed-on: https://chromium-review.googlesource.com/796474Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#49721}
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- 07 Sep, 2017 1 commit
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Peter Marshall authored
Bug: v8:6333 Change-Id: Ibc704172ebc796977b8d8cfae6976666d186f12c Reviewed-on: https://chromium-review.googlesource.com/652450 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#47890}
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- 01 Sep, 2017 1 commit
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Michael Starzinger authored
This adds support for lowering {JSCreateArguments} within outermost frames of type {CreateArgumentsType::kMappedArguments}. It will hence enable escape analysis to work with such objects and allow for further optimization. This also adds a new {NewMappedArgumentsElements} simplfied operator. Note that escape analysis support for this new operator will be done as a follow-up. R=tebbi@chromium.org Change-Id: I0e2fac25c654f796433f57b116964053b6b68635 Reviewed-on: https://chromium-review.googlesource.com/641454 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Jaroslav Sevcik <jarin@chromium.org> Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#47761}
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- 12 Apr, 2017 1 commit
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Marja Hölttä authored
The biggest problem is isolate.h (this CL doesn't solve that yet). BUG=v8:5294 Change-Id: I56b32109f501c48facd99cd12ca6c8f427e188a9 Reviewed-on: https://chromium-review.googlesource.com/471487Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#44613}
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- 10 Feb, 2017 1 commit
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yangguo authored
R=jgruber@chromium.org, kozyatinskiy@chromium.org BUG=v8:5821 Review-Url: https://codereview.chromium.org/2685483002 Cr-Original-Commit-Position: refs/heads/master@{#43049} Committed: https://chromium.googlesource.com/v8/v8/+/1a989bdeefdc679745215ae547007773edb3d29e Review-Url: https://codereview.chromium.org/2685483002 Cr-Commit-Position: refs/heads/master@{#43114}
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- 09 Feb, 2017 2 commits
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machenbach authored
Revert of [debugger] expose side-effect free evaluate to inspector. (patchset #3 id:40001 of https://codereview.chromium.org/2685483002/ ) Reason for revert: Speculative revert. Seems to block the roll: https://codereview.chromium.org/2685933005/ Original issue's description: > [debugger] expose side-effect free evaluate to inspector. > > R=jgruber@chromium.org, kozyatinskiy@chromium.org > BUG=v8:5821 > > Review-Url: https://codereview.chromium.org/2685483002 > Cr-Commit-Position: refs/heads/master@{#43049} > Committed: https://chromium.googlesource.com/v8/v8/+/1a989bdeefdc679745215ae547007773edb3d29e TBR=jgruber@chromium.org,kozyatinskiy@chromium.org,pfeldman@chromium.org,yangguo@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=v8:5821 Review-Url: https://codereview.chromium.org/2687013003 Cr-Commit-Position: refs/heads/master@{#43060}
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yangguo authored
R=jgruber@chromium.org, kozyatinskiy@chromium.org BUG=v8:5821 Review-Url: https://codereview.chromium.org/2685483002 Cr-Commit-Position: refs/heads/master@{#43049}
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- 12 Jan, 2017 1 commit
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yangguo authored
R=jgruber@chromium.org, mstarzinger@chromium.org BUG=v8:5821 Review-Url: https://codereview.chromium.org/2622863003 Cr-Commit-Position: refs/heads/master@{#42270}
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