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[tq][runtime] Use build flags for JS context promise hooks

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Use build_flags_ with @if/@ifnot in torque for the following flags:
- V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
- V8_ENABLE_SWISS_NAME_DICTIONARY

- Make sure Torque and CSA code actually respect
  V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS.
- Rename V8_ALLOW_JAVASCRIPT_IN_PROMISE_HOOKS to
  V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
- Rename gn/bazel arg v8_allow_javascript_in_promise_hooks to
  v8_enable_javascript_promise_hooks
- Unship context promise hooks in chrome and enable them only in d8
  for testing purposes
- Make sure d8 and the API throw when using promise hooks without
  the compile time feature enabled

Bug: chromium:1265186, v8:11025
Change-Id: I69834d44d683a36d0d7be3c3d68888321be0fd7f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3301474
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78362}
This commit is contained in:
Camillo Bruni 2021-12-14 11:05:08 +01:00 committed by V8 LUCI CQ
parent 4ecf143801
commit 1e4593f3fe
14 changed files with 158 additions and 105 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
BUILD.bazel
View File

@ -84,7 +84,7 @@ config_setting(
# v8_generate_external_defines_header
# v8_dict_property_const_tracking
# v8_enable_map_packing
# v8_allow_javascript_in_promise_hooks
# v8_enable_javascript_promise_hooks
# v8_enable_allocation_folding
# v8_allocation_site_tracking

6
BUILD.gn
View File

@ -333,7 +333,7 @@ declare_args() {
v8_enable_map_packing = false
# Allow for JS promise hooks (instead of just C++).
v8_allow_javascript_in_promise_hooks = false
v8_enable_javascript_promise_hooks = false
# Enable allocation folding globally (sets -dV8_ALLOCATION_FOLDING).
# When it's disabled, the --turbo-allocation-folding runtime flag will be ignored.
@ -945,8 +945,8 @@ config("features") {
if (v8_dict_property_const_tracking) {
defines += [ "V8_DICT_PROPERTY_CONST_TRACKING" ]
}
if (v8_allow_javascript_in_promise_hooks) {
defines += [ "V8_ALLOW_JAVASCRIPT_IN_PROMISE_HOOKS" ]
if (v8_enable_javascript_promise_hooks) {
defines += [ "V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS" ]
}
if (v8_enable_allocation_folding) {
defines += [ "V8_ALLOCATION_FOLDING" ]

5
src/api/api.cc
View File

@ -6602,6 +6602,7 @@ void v8::Context::SetPromiseHooks(Local<Function> init_hook,
Local<Function> before_hook,
Local<Function> after_hook,
Local<Function> resolve_hook) {
#ifdef V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
i::Handle<i::Context> context = Utils::OpenHandle(this);
i::Isolate* isolate = context->GetIsolate();
@ -6635,6 +6636,10 @@ void v8::Context::SetPromiseHooks(Local<Function> init_hook,
context->native_context().set_promise_hook_before_function(*before);
context->native_context().set_promise_hook_after_function(*after);
context->native_context().set_promise_hook_resolve_function(*resolve);
#else // V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
Utils::ApiCheck(false, "v8::Context::SetPromiseHook",
"V8 was compiled without JavaScript Promise hooks");
#endif // V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
}
MaybeLocal<Context> metrics::Recorder::GetContext(

3
src/builtins/base.tq
View File

@ -485,9 +485,6 @@ const kWasmArrayHeaderSize:
const kHeapObjectHeaderSize:
constexpr int32 generates 'HeapObject::kHeaderSize';
const kDictModePrototypes:
constexpr bool generates 'V8_ENABLE_SWISS_NAME_DICTIONARY_BOOL';
type TheHole extends Oddball;
type Null extends Oddball;
type Undefined extends Oddball;

2
src/builtins/builtins-async-gen.cc
View File

@ -183,6 +183,7 @@ void AsyncBuiltinsAssembler::InitAwaitPromise(
Goto(&do_nothing);
BIND(&not_debugging);
#ifdef V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
// This call to NewJSPromise is to keep behaviour parity with what happens
// in Runtime::kAwaitPromisesInit above if native hooks are set. It will
// create a throwaway promise that will trigger an init event and will get
@ -191,6 +192,7 @@ void AsyncBuiltinsAssembler::InitAwaitPromise(
&do_nothing);
BIND(&if_promise_hook);
*var_throwaway = NewJSPromise(context, promise);
#endif // V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
Goto(&do_nothing);
BIND(&do_nothing);
}

5
src/builtins/object.tq
View File

@ -99,10 +99,11 @@ transitioning builtin CreateObjectWithoutProperties(implicit context: Context)(
case (Null): {
map = *NativeContextSlot(
ContextSlot::SLOW_OBJECT_WITH_NULL_PROTOTYPE_MAP);
if (kDictModePrototypes) {
@if(V8_ENABLE_SWISS_NAME_DICTIONARY) {
properties =
AllocateSwissNameDictionary(kSwissNameDictionaryInitialCapacity);
} else {
}
@ifnot(V8_ENABLE_SWISS_NAME_DICTIONARY) {
properties = AllocateNameDictionary(kNameDictionaryInitialCapacity);
}
}

20
src/builtins/promise-misc.tq
View File

@ -120,10 +120,14 @@ transitioning macro RunContextPromiseHookInit(implicit context: Context)(
@export
transitioning macro RunContextPromiseHookResolve(implicit context: Context)(
promise: JSPromise): void {
// Use potentially unused variables.
const _unusedPromise = promise;
@if(V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS) {
RunContextPromiseHook(
ContextSlot::PROMISE_HOOK_RESOLVE_FUNCTION_INDEX, promise,
PromiseHookFlags());
}
}
@export
transitioning macro RunContextPromiseHookResolve(implicit context: Context)(
@ -135,10 +139,14 @@ transitioning macro RunContextPromiseHookResolve(implicit context: Context)(
@export
transitioning macro RunContextPromiseHookBefore(implicit context: Context)(
promiseOrCapability: JSPromise|PromiseCapability|Undefined): void {
// Use potentially unused variables.
const _unusedPromiseOrCapability = promiseOrCapability;
@if(V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS) {
RunContextPromiseHook(
ContextSlot::PROMISE_HOOK_BEFORE_FUNCTION_INDEX, promiseOrCapability,
PromiseHookFlags());
}
}
@export
transitioning macro RunContextPromiseHookBefore(implicit context: Context)(
@ -152,10 +160,14 @@ transitioning macro RunContextPromiseHookBefore(implicit context: Context)(
@export
transitioning macro RunContextPromiseHookAfter(implicit context: Context)(
promiseOrCapability: JSPromise|PromiseCapability|Undefined): void {
// Use potentially unused variables.
const _unusedPromiseOrCapability = promiseOrCapability;
@if(V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS) {
RunContextPromiseHook(
ContextSlot::PROMISE_HOOK_AFTER_FUNCTION_INDEX, promiseOrCapability,
PromiseHookFlags());
}
}
@export
transitioning macro RunContextPromiseHookAfter(implicit context: Context)(
@ -170,6 +182,11 @@ transitioning macro RunContextPromiseHook(implicit context: Context)(
slot: Slot<NativeContext, Undefined|Callable>,
promiseOrCapability: JSPromise|PromiseCapability|Undefined,
flags: uint32): void {
// Use potentially unused variables.
const _unusedSlot = slot;
const _unusedPromiseOrCapability = promiseOrCapability;
const _unusedFlags = flags;
@if(V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS) {
if (!IsContextPromiseHookEnabled(flags)) return;
const maybeHook = *NativeContextSlot(slot);
const hook = Cast<Callable>(maybeHook) otherwise return;
@ -193,15 +210,18 @@ transitioning macro RunContextPromiseHook(implicit context: Context)(
runtime::ReportMessageFromMicrotask(e);
}
}
}
transitioning macro RunAnyPromiseHookInit(implicit context: Context)(
promise: JSPromise, parent: Object): void {
const promiseHookFlags = PromiseHookFlags();
// Fast return if no hooks are set.
if (promiseHookFlags == 0) return;
@if(V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS) {
if (IsContextPromiseHookEnabled(promiseHookFlags)) {
RunContextPromiseHookInit(promise, parent);
}
}
if (IsIsolatePromiseHookEnabledOrHasAsyncEventDelegate(promiseHookFlags)) {
runtime::PromiseHookInit(promise, parent);
}

2
src/codegen/code-stub-assembler.cc
View File

@ -14381,10 +14381,12 @@ TNode<BoolT> CodeStubAssembler::IsAnyPromiseHookEnabled(TNode<Uint32T> flags) {
return IsSetWord32(flags, mask);
}
#ifdef V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
TNode<BoolT> CodeStubAssembler::IsContextPromiseHookEnabled(
TNode<Uint32T> flags) {
return IsSetWord32<Isolate::PromiseHookFields::HasContextPromiseHook>(flags);
}
#endif
TNode<BoolT> CodeStubAssembler::
IsIsolatePromiseHookEnabledOrHasAsyncEventDelegate(TNode<Uint32T> flags) {

5
src/codegen/code-stub-assembler.h
View File

@ -3660,10 +3660,9 @@ class V8_EXPORT_PRIVATE CodeStubAssembler
// Promise helpers
TNode<Uint32T> PromiseHookFlags();
TNode<BoolT> HasAsyncEventDelegate();
#ifdef V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
TNode<BoolT> IsContextPromiseHookEnabled(TNode<Uint32T> flags);
TNode<BoolT> IsContextPromiseHookEnabled() {
return IsContextPromiseHookEnabled(PromiseHookFlags());
}
#endif
TNode<BoolT> IsAnyPromiseHookEnabled(TNode<Uint32T> flags);
TNode<BoolT> IsAnyPromiseHookEnabled() {
return IsAnyPromiseHookEnabled(PromiseHookFlags());

6
src/d8/d8.cc
View File

@ -2164,6 +2164,7 @@ void Shell::SetPromiseHooks(const v8::FunctionCallbackInfo<v8::Value>& args) {
"--correctness-fuzzer-suppressions");
return;
}
#ifdef V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
Local<Context> context = isolate->GetCurrentContext();
HandleScope handle_scope(isolate);
@ -2174,6 +2175,11 @@ void Shell::SetPromiseHooks(const v8::FunctionCallbackInfo<v8::Value>& args) {
args[3]->IsFunction() ? args[3].As<Function>() : Local<Function>());
args.GetReturnValue().Set(v8::Undefined(isolate));
#else // V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
isolate->ThrowError(
"d8.promise.setHooks is disabled due to missing build flag "
"v8_enabale_javascript_in_promise_hooks");
#endif // V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
}
void WriteToFile(FILE* file, const v8::FunctionCallbackInfo<v8::Value>& args) {

2
src/execution/isolate.h
View File

@ -1569,11 +1569,13 @@ class V8_EXPORT_PRIVATE Isolate final : private HiddenFactory {
}
#endif
#ifdef V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
void SetHasContextPromiseHooks(bool context_promise_hook) {
promise_hook_flags_ = PromiseHookFields::HasContextPromiseHook::update(
promise_hook_flags_, context_promise_hook);
PromiseHookStateUpdated();
}
#endif // V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
bool HasContextPromiseHooks() const {
return PromiseHookFields::HasContextPromiseHook::decode(

5
src/objects/js-objects.tq
View File

@ -78,10 +78,11 @@ macro AllocateFastOrSlowJSObjectFromMap(implicit context: Context)(map: Map):
let properties: EmptyFixedArray|NameDictionary|SwissNameDictionary =
kEmptyFixedArray;
if (IsDictionaryMap(map)) {
if (kDictModePrototypes) {
@if(V8_ENABLE_SWISS_NAME_DICTIONARY) {
properties =
AllocateSwissNameDictionary(kSwissNameDictionaryInitialCapacity);
} else {
}
@ifnot(V8_ENABLE_SWISS_NAME_DICTIONARY) {
properties = AllocateNameDictionary(kNameDictionaryInitialCapacity);
}
}

7
src/torque/torque-parser.cc
View File

@ -48,6 +48,13 @@ class BuildFlags : public ContextualClass<BuildFlags> {
build_flags_["V8_SFI_HAS_UNIQUE_ID"] = V8_SFI_HAS_UNIQUE_ID;
build_flags_["V8_EXTERNAL_CODE_SPACE"] = V8_EXTERNAL_CODE_SPACE_BOOL;
build_flags_["TAGGED_SIZE_8_BYTES"] = TAGGED_SIZE_8_BYTES;
build_flags_["V8_ENABLE_SWISS_NAME_DICTIONARY"] =
V8_ENABLE_SWISS_NAME_DICTIONARY_BOOL;
#ifdef V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS
build_flags_["V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS"] = true;
#else
build_flags_["V8_ENABLE_JAVASCRIPT_PROMISE_HOOKS"] = false;
#endif
build_flags_["TRUE_FOR_TESTING"] = true;
build_flags_["FALSE_FOR_TESTING"] = false;
#ifdef V8_SCRIPTORMODULE_LEGACY_LIFETIME

11
test/mjsunit/promise-hooks.js
View File

@ -37,6 +37,14 @@ function printLog(message) {
}
}
let has_promise_hooks = false;
try {
d8.promise.setHooks();
has_promise_hooks = true;
} catch {
has_promise_hooks = false;
}
function assertNextEvent(type, args) {
const [ promiseOrId, parentOrId ] = args;
const nextEvent = log.shift();
@ -212,6 +220,7 @@ function optimizerBailout(test, verify) {
d8.promise.setHooks();
}
if (has_promise_hooks) {
optimizerBailout(async () => {
await Promise.resolve();
}, () => {
@ -281,3 +290,5 @@ exceptions();
%PerformMicrotaskCheckpoint();
d8.promise.setHooks();
});
}