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v8/test/debugger/debug
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Andreas Haas 37e5a28add Reland: "[wasm] Compile debug code lazily" 
Three issues were fixed:
* In debug state, only publish debug code.
* When entering debugging in an isolate, only delete the code of
  those NativeModules that aren't in debug state already.
* When async compilation finishes, only throw away code if the debug
  state changed during compilation.

Original message:

Currently V8 recompiles all functions of a WebAssembly module when a
debugging session starts. This is outdated behavior and
causes OOMs for developers. With this CL all compiled code just gets
removed when a debugging session starts, and debugging code gets
compiled lazily.

This behavior may lead to small delays whenever a new function gets
entered by the debugger. However, developers are used to debugging code
being slightly slower, and the small delays should be in the order of
few milliseconds. On the other hand, debug modules can be big,
sometimes even more than 1'000'000 functions, and developers reported
OOMs when debugging.

R=clemensb@chromium.org

Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_isolates_rel
Bug: v8:13541, chromium:1372621, v8:13224
Change-Id: Ie27388a287cd16a67a483e14fc22c2ab4180962e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4079190
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84873}
2022-12-15 14:59:13 +00:00
..
compiler Revert "[turbofan] Making OSR concurrent" 2022-02-21 14:02:43 +00:00
es6 [debug] Remove statement position from spreads in array literals. 2022-09-28 10:51:34 +00:00
es8 [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
harmony [debugger] materialize scope values in TDZ as undefined. 2020-06-15 10:09:58 +00:00
ignition [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
regress Reland "[debug] Immediately step-in for 'stack check triggered' debug breaks" 2022-09-01 10:33:03 +00:00
side-effect Ship Array grouping 2022-09-28 20:58:40 +00:00
wasm Reland: "[wasm] Compile debug code lazily" 2022-12-15 14:59:13 +00:00
debug-allscopes-on-debugger.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-backtrace.js [tests] Fix assertFalse(exception) anti-pattern 2018-03-21 10:59:46 +00:00
debug-bigint.js Remove always-true --harmony-bigint runtime flag 2018-10-01 11:31:13 +00:00
debug-break-class-fields.js Reland "[class] implement reparsing of class instance member initializers" 2022-01-24 16:24:35 +00:00
debug-break-inline.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
debug-break-microtask.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-break-native.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-break-return.js [debug] removed most debugger js 2018-06-03 06:02:59 +00:00
debug-breakpoints.js [debug-wrapper] Further extend the debug wrapper 2016-11-16 08:34:44 +00:00
debug-clearbreakpoint.js [tests] Fix assertFalse(exception) anti-pattern 2018-03-21 10:59:46 +00:00
debug-compile-event.js [tests] Fix assertFalse(exception) anti-pattern 2018-03-21 10:59:46 +00:00
debug-compile-optimized.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-conditional-breakpoints.js [debug-wrapper] Migrate more tests 2016-11-22 12:44:18 +00:00
debug-constructor.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-enable-disable-breakpoints.js [debug-wrapper] Further extend the debug wrapper 2016-11-16 08:34:44 +00:00
debug-eval-scope.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-evaluate-arguments.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
debug-evaluate-bool-constructor.js [tests] Fix assertFalse(exception) anti-pattern 2018-03-21 10:59:46 +00:00
debug-evaluate-closure.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-evaluate-dead-function-fails.js [cleanup] Remove --stress-opt remnants 2022-08-31 08:37:44 +00:00
debug-evaluate-declaration.js [debug-wrapper] Conditional breaks, locals, evaluate, scopes 2016-11-11 12:08:34 +00:00
debug-evaluate-function-var.js Reland "[debugger] Expose reference to the function in debug-evaluate" 2019-06-27 06:09:22 +00:00
debug-evaluate-local-repl-hole.js Introduce REPL mode 2019-11-06 09:17:04 +00:00
debug-evaluate-locals-capturing.js [cleanup] Remove --stress-opt remnants 2022-08-31 08:37:44 +00:00
debug-evaluate-locals-optimized-double.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
debug-evaluate-locals-optimized.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
debug-evaluate-locals.js [tests] Fix assertFalse(exception) anti-pattern 2018-03-21 10:59:46 +00:00
debug-evaluate-modify-catch-block-scope.js [cleanup] Remove --stress-opt remnants 2022-08-31 08:37:44 +00:00
debug-evaluate-modify-this.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
debug-evaluate-nested-let.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-evaluate-repl-mode-await.js Reland "Implement top-level await for REPL mode" 2019-12-06 10:13:00 +00:00
debug-evaluate-repl-mode-optimized.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-evaluate-repl-mode.js Adding support for const redeclaration on REPL mode. 2021-05-11 16:47:04 +00:00
debug-evaluate-shadowed-context-reuse.js [debug] Re-use block lists across multiple local debug-evaluates 2022-10-13 07:44:59 +00:00
debug-evaluate-shadowed-context.js [debug] Re-use block lists across multiple local debug-evaluates 2022-10-13 07:44:59 +00:00
debug-evaluate-with.js [tests] Fix assertFalse(exception) anti-pattern 2018-03-21 10:59:46 +00:00
debug-evaluate.js [tests] Fix assertFalse(exception) anti-pattern 2018-03-21 10:59:46 +00:00
debug-event-listener.js [debug-wrapper] Add caught/uncaught to exception pauses 2016-11-10 09:05:29 +00:00
debug-exceptions.js [debug-wrapper] Add caught/uncaught to exception pauses 2016-11-10 09:05:29 +00:00
debug-function-scopes.js [debug-wrapper] Migrate more tests 2016-11-22 12:44:18 +00:00
debug-generator-break-on-stack.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
debug-generator-break.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
debug-liveedit-1.js [debug] migrate all liveedit tests to use LiveEdit::PatchScript 2018-06-21 15:34:16 +00:00
debug-liveedit-2.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-liveedit-3.js [debug] migrate all liveedit tests to use LiveEdit::PatchScript 2018-06-21 15:34:16 +00:00
debug-liveedit-4.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-liveedit-arrow-function-at-start.js [liveedit] Fix patching functions with start position zero 2018-07-18 16:20:22 +00:00
debug-liveedit-check-stack.js [debug] Disallow LiveEdit of active frames. 2021-04-28 13:00:19 +00:00
debug-liveedit-compile-error.js [debug] migrate all liveedit tests to use LiveEdit::PatchScript 2018-06-21 15:34:16 +00:00
debug-liveedit-inline.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
debug-liveedit-literals.js [debug] migrate all liveedit tests to use LiveEdit::PatchScript 2018-06-21 15:34:16 +00:00
debug-liveedit-newsource.js [debug] migrate all liveedit tests to use LiveEdit::PatchScript 2018-06-21 15:34:16 +00:00
debug-liveedit-patch-positions-replace.js [test] Fixes a spelling typo 2020-04-06 18:16:55 +00:00
debug-liveedit-recursion.js [debug] Disallow LiveEdit of active frames. 2021-04-28 13:00:19 +00:00
debug-materialized.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
debug-modules-set-variable-value.mjs [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-multiple-breakpoints.js [debug-wrapper] Migrate more tests 2016-11-22 12:44:18 +00:00
debug-multiple-var-decl.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-negative-break-points.js [debug-wrapper] Migrate more tests 2016-11-22 12:44:18 +00:00
debug-optimize.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-print.js [elements] Rename FAST elements kinds 2017-06-30 13:31:44 +00:00
debug-receiver.js Fix common misspellings 2017-08-02 09:35:28 +00:00
debug-return-value.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-scopes-suspended-generators.js [turbofan] Only save live registers on suspend 2018-02-07 18:07:30 +00:00
debug-scopes.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
debug-set-variable-value.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-stack-check-position.js Reland "[debug] Immediately step-in for 'stack check triggered' debug breaks" 2022-09-01 10:33:03 +00:00
debug-step-2.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
debug-step-3.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
debug-step-4.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
debug-step-end-of-script.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-step-into-json.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-step-into-valueof.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-step-microtask.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-step-stub-callfunction.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-step-turbofan.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-step.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-accessor-ic.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-accessor.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-builtin-callback-opt.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-builtin-callback.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-builtin.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-call-function-stub.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-construct-call.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-constructor.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-foreach.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-function-call.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepin-property-function-call.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
debug-stepnext-do-while.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-recursive-function.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
debug-stepout-scope-part1.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-scope-part2.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-scope-part3.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-scope-part4.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-scope-part5.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-scope-part6.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-scope-part7.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-scope-part8.js [debug][cleanup] Use consistent StepInto and StepOver naming. 2021-06-01 11:26:57 +00:00
debug-stepout-to-builtin.js [debugger] Further stepping support in test wrapper 2016-11-07 12:25:24 +00:00
deserialize-script-id.js [debug] retire ScriptWrapper 2018-07-05 21:33:03 +00:00
for-in-opt.js [Test] Add PrepareForOptimization to debugger/ tests. 2019-04-29 13:47:16 +00:00
function-source.js [debug-wrapper] clearAllBreakPoints and several scripts functions 2016-11-17 09:34:18 +00:00
lazy-deopt-then-flush-bytecode.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
regress-3225.js [flags] Rename --opt to --turbofan 2022-05-03 12:10:30 +00:00
regress-5207.js [ignition/turbo] Perform liveness analysis on the bytecodes 2016-11-29 12:27:15 +00:00