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v8/test/unittests/execution/thread-termination-unittest.cc
Qifan Pan 6fb86b9788 [turbofan] Support BigIntDivide 
Bug: v8:9407
Change-Id: I29f8f5ec68f09e8631b59d3a6a2926bab3b3bcd3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3845638
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Qifan Pan <panq@google.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82741}
2022-08-26 08:51:36 +00:00

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// Copyright 2009 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "include/v8-function.h"
#include "include/v8-locker.h"
#include "src/api/api-inl.h"
#include "src/base/platform/platform.h"
#include "src/execution/isolate.h"
#include "src/init/v8.h"
#include "src/objects/objects-inl.h"
#include "test/unittests/test-utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace v8 {
base::Semaphore* semaphore = nullptr;
class TerminatorThread : public base::Thread {
public:
explicit TerminatorThread(i::Isolate* isolate)
: Thread(Options("TerminatorThread")),
isolate_(reinterpret_cast<Isolate*>(isolate)) {}
void Run() override {
semaphore->Wait();
CHECK(!isolate_->IsExecutionTerminating());
isolate_->TerminateExecution();
}
private:
Isolate* isolate_;
};
void Signal(const FunctionCallbackInfo<Value>& args) { semaphore->Signal(); }
MaybeLocal<Value> CompileRun(Local<Context> context, Local<String> source) {
Local<Script> script = Script::Compile(context, source).ToLocalChecked();
return script->Run(context);
}
MaybeLocal<Value> CompileRun(Local<Context> context, const char* source) {
return CompileRun(
context,
String::NewFromUtf8(context->GetIsolate(), source).ToLocalChecked());
}
void DoLoop(const FunctionCallbackInfo<Value>& args) {
TryCatch try_catch(args.GetIsolate());
CHECK(!args.GetIsolate()->IsExecutionTerminating());
MaybeLocal<Value> result = CompileRun(args.GetIsolate()->GetCurrentContext(),
"function f() {"
" var term = true;"
" try {"
" while(true) {"
" if (term) terminate();"
" term = false;"
" }"
" fail();"
" } catch(e) {"
" fail();"
" }"
"}"
"f()");
CHECK(result.IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(try_catch.Exception()->IsNull());
CHECK(try_catch.Message().IsEmpty());
CHECK(!try_catch.CanContinue());
CHECK(args.GetIsolate()->IsExecutionTerminating());
}
void Fail(const FunctionCallbackInfo<Value>& args) { UNREACHABLE(); }
void Loop(const FunctionCallbackInfo<Value>& args) {
CHECK(!args.GetIsolate()->IsExecutionTerminating());
MaybeLocal<Value> result =
CompileRun(args.GetIsolate()->GetCurrentContext(),
"try { doloop(); fail(); } catch(e) { fail(); }");
CHECK(result.IsEmpty());
CHECK(args.GetIsolate()->IsExecutionTerminating());
}
void TerminateCurrentThread(const FunctionCallbackInfo<Value>& args) {
CHECK(!args.GetIsolate()->IsExecutionTerminating());
args.GetIsolate()->TerminateExecution();
}
class ThreadTerminationTest : public TestWithIsolate {
public:
void TestTerminatingFromOtherThread(const char* source) {
semaphore = new base::Semaphore(0);
TerminatorThread thread(i_isolate());
CHECK(thread.Start());
HandleScope scope(isolate());
Local<ObjectTemplate> global =
CreateGlobalTemplate(isolate(), Signal, DoLoop);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
MaybeLocal<Value> result = TryRunJS(source);
CHECK(result.IsEmpty());
thread.Join();
delete semaphore;
semaphore = nullptr;
}
void TestTerminatingFromCurrentThread(const char* source) {
HandleScope scope(isolate());
Local<ObjectTemplate> global =
CreateGlobalTemplate(isolate(), TerminateCurrentThread, DoLoop);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
MaybeLocal<Value> result = TryRunJS(source);
CHECK(result.IsEmpty());
}
Local<ObjectTemplate> CreateGlobalTemplate(Isolate* isolate,
FunctionCallback terminate,
FunctionCallback doloop) {
Local<ObjectTemplate> global = ObjectTemplate::New(isolate);
global->Set(NewString("terminate"),
FunctionTemplate::New(isolate, terminate));
global->Set(NewString("fail"), FunctionTemplate::New(isolate, Fail));
global->Set(NewString("loop"), FunctionTemplate::New(isolate, Loop));
global->Set(NewString("doloop"), FunctionTemplate::New(isolate, doloop));
return global;
}
};
void DoLoopNoCall(const FunctionCallbackInfo<Value>& args) {
TryCatch try_catch(args.GetIsolate());
CHECK(!args.GetIsolate()->IsExecutionTerminating());
MaybeLocal<Value> result = CompileRun(args.GetIsolate()->GetCurrentContext(),
"var term = true;"
"while(true) {"
" if (term) terminate();"
" term = false;"
"}");
CHECK(result.IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(try_catch.Exception()->IsNull());
CHECK(try_catch.Message().IsEmpty());
CHECK(!try_catch.CanContinue());
CHECK(args.GetIsolate()->IsExecutionTerminating());
}
// Test that a single thread of JavaScript execution can terminate
// itself.
TEST_F(ThreadTerminationTest, TerminateOnlyV8ThreadFromThreadItself) {
HandleScope scope(isolate());
Local<ObjectTemplate> global =
CreateGlobalTemplate(isolate(), TerminateCurrentThread, DoLoop);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
// Run a loop that will be infinite if thread termination does not work.
MaybeLocal<Value> result =
TryRunJS("try { loop(); fail(); } catch(e) { fail(); }");
CHECK(result.IsEmpty());
// Test that we can run the code again after thread termination.
CHECK(!isolate()->IsExecutionTerminating());
result = TryRunJS("try { loop(); fail(); } catch(e) { fail(); }");
CHECK(result.IsEmpty());
}
// Test that a single thread of JavaScript execution can terminate
// itself in a loop that performs no calls.
TEST_F(ThreadTerminationTest, TerminateOnlyV8ThreadFromThreadItselfNoLoop) {
HandleScope scope(isolate());
Local<ObjectTemplate> global =
CreateGlobalTemplate(isolate(), TerminateCurrentThread, DoLoopNoCall);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
// Run a loop that will be infinite if thread termination does not work.
static const char* source = "try { loop(); fail(); } catch(e) { fail(); }";
MaybeLocal<Value> result = TryRunJS(source);
CHECK(result.IsEmpty());
CHECK(!isolate()->IsExecutionTerminating());
// Test that we can run the code again after thread termination.
result = TryRunJS(source);
CHECK(result.IsEmpty());
}
// Test that a single thread of JavaScript execution can be terminated
// from the side by another thread.
TEST_F(ThreadTerminationTest, TerminateOnlyV8ThreadFromOtherThread) {
// Run a loop that will be infinite if thread termination does not work.
TestTerminatingFromOtherThread(
"try { loop(); fail(); } catch(e) { fail(); }");
}
// Test that execution can be terminated from within JSON.stringify.
TEST_F(ThreadTerminationTest, TerminateJsonStringify) {
TestTerminatingFromCurrentThread(
"var x = [];"
"x[2**31]=1;"
"terminate();"
"JSON.stringify(x);"
"fail();");
}
TEST_F(ThreadTerminationTest, TerminateBigIntMultiplication) {
TestTerminatingFromCurrentThread(
"terminate();"
"var a = 5n ** 555555n;"
"var b = 3n ** 3333333n;"
"a * b;"
"fail();");
}
TEST_F(ThreadTerminationTest, TerminateOptimizedBigIntMultiplication) {
i::FLAG_allow_natives_syntax = true;
TestTerminatingFromCurrentThread(
"function foo(a, b) { return a * b; }"
"%PrepareFunctionForOptimization(foo);"
"foo(1n, 2n);"
"foo(1n, 2n);"
"%OptimizeFunctionOnNextCall(foo);"
"foo(1n, 2n);"
"var a = 5n ** 555555n;"
"var b = 3n ** 3333333n;"
"terminate();"
"foo(a, b);"
"fail();");
}
TEST_F(ThreadTerminationTest, TerminateBigIntDivision) {
TestTerminatingFromCurrentThread(
"var a = 2n ** 2222222n;"
"var b = 3n ** 333333n;"
"terminate();"
"a / b;"
"fail();");
}
TEST_F(ThreadTerminationTest, TerminateOptimizedBigIntDivision) {
i::FLAG_allow_natives_syntax = true;
TestTerminatingFromCurrentThread(
"function foo(a, b) { return a / b; }"
"%PrepareFunctionForOptimization(foo);"
"foo(3n, 2n);"
"foo(3n, 2n);"
"%OptimizeFunctionOnNextCall(foo);"
"foo(3n, 2n);"
"var a = 2n ** 2222222n;"
"var b = 3n ** 333333n;"
"terminate();"
"foo(a, b);"
"fail();");
}
TEST_F(ThreadTerminationTest, TerminateBigIntToString) {
TestTerminatingFromCurrentThread(
"var a = 2n ** 2222222n;"
"terminate();"
"a.toString();"
"fail();");
}
TEST_F(ThreadTerminationTest, TerminateBigIntFromString) {
TestTerminatingFromCurrentThread(
"var a = '12344567890'.repeat(100000);\n"
"terminate();\n"
"BigInt(a);\n"
"fail();\n");
}
void LoopGetProperty(const FunctionCallbackInfo<Value>& args) {
TryCatch try_catch(args.GetIsolate());
CHECK(!args.GetIsolate()->IsExecutionTerminating());
MaybeLocal<Value> result =
CompileRun(args.GetIsolate()->GetCurrentContext(),
"function f() {"
" try {"
" while(true) {"
" terminate_or_return_object().x;"
" }"
" fail();"
" } catch(e) {"
" (function() {})();" // trigger stack check.
" fail();"
" }"
"}"
"f()");
CHECK(result.IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(try_catch.Exception()->IsNull());
CHECK(try_catch.Message().IsEmpty());
CHECK(!try_catch.CanContinue());
CHECK(args.GetIsolate()->IsExecutionTerminating());
}
int call_count = 0;
void TerminateOrReturnObject(const FunctionCallbackInfo<Value>& args) {
if (++call_count == 10) {
CHECK(!args.GetIsolate()->IsExecutionTerminating());
args.GetIsolate()->TerminateExecution();
return;
}
Local<Object> result = Object::New(args.GetIsolate());
Local<Context> context = args.GetIsolate()->GetCurrentContext();
Maybe<bool> val = result->Set(
context, String::NewFromUtf8(context->GetIsolate(), "x").ToLocalChecked(),
Integer::New(args.GetIsolate(), 42));
CHECK(val.FromJust());
args.GetReturnValue().Set(result);
}
// Test that we correctly handle termination exceptions if they are
// triggered by the creation of error objects in connection with ICs.
TEST_F(ThreadTerminationTest, TerminateLoadICException) {
HandleScope scope(isolate());
Local<ObjectTemplate> global = ObjectTemplate::New(isolate());
global->Set(NewString("terminate_or_return_object"),
FunctionTemplate::New(isolate(), TerminateOrReturnObject));
global->Set(NewString("fail"), FunctionTemplate::New(isolate(), Fail));
global->Set(NewString("loop"),
FunctionTemplate::New(isolate(), LoopGetProperty));
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
// Run a loop that will be infinite if thread termination does not work.
static const char* source = "try { loop(); fail(); } catch(e) { fail(); }";
call_count = 0;
MaybeLocal<Value> result = CompileRun(isolate()->GetCurrentContext(), source);
CHECK(result.IsEmpty());
// Test that we can run the code again after thread termination.
CHECK(!isolate()->IsExecutionTerminating());
call_count = 0;
result = CompileRun(isolate()->GetCurrentContext(), source);
CHECK(result.IsEmpty());
}
Persistent<String> reenter_script_1;
Persistent<String> reenter_script_2;
void ReenterAfterTermination(const FunctionCallbackInfo<Value>& args) {
TryCatch try_catch(args.GetIsolate());
Isolate* isolate = args.GetIsolate();
CHECK(!isolate->IsExecutionTerminating());
Local<String> script = Local<String>::New(isolate, reenter_script_1);
MaybeLocal<Value> result =
CompileRun(Isolate::GetCurrent()->GetCurrentContext(), script);
CHECK(result.IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(try_catch.Exception()->IsNull());
CHECK(try_catch.Message().IsEmpty());
CHECK(!try_catch.CanContinue());
CHECK(try_catch.HasTerminated());
CHECK(isolate->IsExecutionTerminating());
script = Local<String>::New(isolate, reenter_script_2);
MaybeLocal<Script> compiled_script =
Script::Compile(isolate->GetCurrentContext(), script);
CHECK(compiled_script.IsEmpty());
}
// Test that reentry into V8 while the termination exception is still pending
// (has not yet unwound the 0-level JS frame) does not crash.
TEST_F(ThreadTerminationTest, TerminateAndReenterFromThreadItself) {
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, ReenterAfterTermination);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
// Create script strings upfront as it won't work when terminating.
reenter_script_1.Reset(isolate(), NewString("function f() {"
" var term = true;"
" try {"
" while(true) {"
" if (term) terminate();"
" term = false;"
" }"
" fail();"
" } catch(e) {"
" fail();"
" }"
"}"
"f()"));
reenter_script_2.Reset(isolate(), NewString("function f() { fail(); } f()"));
TryRunJS("try { loop(); fail(); } catch(e) { fail(); }");
CHECK(!isolate()->IsExecutionTerminating());
// Check we can run JS again after termination.
CHECK(RunJS("function f() { return true; } f()")->IsTrue());
reenter_script_1.Reset();
reenter_script_2.Reset();
}
TEST_F(ThreadTerminationTest,
TerminateAndReenterFromThreadItselfWithOuterTryCatch) {
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, ReenterAfterTermination);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
// Create script strings upfront as it won't work when terminating.
reenter_script_1.Reset(isolate(), NewString("function f() {"
" var term = true;"
" try {"
" while(true) {"
" if (term) terminate();"
" term = false;"
" }"
" fail();"
" } catch(e) {"
" fail();"
" }"
"}"
"f()"));
reenter_script_2.Reset(isolate(), NewString("function f() { fail(); } f()"));
{
TryCatch try_catch(isolate());
TryRunJS("try { loop(); fail(); } catch(e) { fail(); }");
CHECK(try_catch.HasCaught());
CHECK(try_catch.Exception()->IsNull());
CHECK(try_catch.Message().IsEmpty());
CHECK(!try_catch.CanContinue());
CHECK(try_catch.HasTerminated());
CHECK(isolate()->IsExecutionTerminating());
}
CHECK(!isolate()->IsExecutionTerminating());
// Check we can run JS again after termination.
CHECK(RunJS("function f() { return true; } f()")->IsTrue());
reenter_script_1.Reset();
reenter_script_2.Reset();
}
void DoLoopCancelTerminate(const FunctionCallbackInfo<Value>& args) {
Isolate* isolate = args.GetIsolate();
TryCatch try_catch(isolate);
CHECK(!isolate->IsExecutionTerminating());
MaybeLocal<Value> result = CompileRun(isolate->GetCurrentContext(),
"var term = true;"
"while(true) {"
" if (term) terminate();"
" term = false;"
"}"
"fail();");
CHECK(result.IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(try_catch.Exception()->IsNull());
CHECK(try_catch.Message().IsEmpty());
CHECK(!try_catch.CanContinue());
CHECK(isolate->IsExecutionTerminating());
CHECK(try_catch.HasTerminated());
isolate->CancelTerminateExecution();
CHECK(!isolate->IsExecutionTerminating());
}
// Test that a single thread of JavaScript execution can terminate
// itself and then resume execution.
TEST_F(ThreadTerminationTest, TerminateCancelTerminateFromThreadItself) {
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, DoLoopCancelTerminate);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
// Check that execution completed with correct return value.
Local<Value> result =
CompileRun(isolate()->GetCurrentContext(),
"try { doloop(); } catch(e) { fail(); } 'completed';")
.ToLocalChecked();
CHECK(result->Equals(isolate()->GetCurrentContext(), NewString("completed"))
.FromJust());
}
void MicrotaskShouldNotRun(const FunctionCallbackInfo<Value>& info) {
UNREACHABLE();
}
void MicrotaskLoopForever(const FunctionCallbackInfo<Value>& info) {
Isolate* isolate = info.GetIsolate();
HandleScope scope(isolate);
// Enqueue another should-not-run task to ensure we clean out the queue
// when we terminate.
isolate->EnqueueMicrotask(
Function::New(isolate->GetCurrentContext(), MicrotaskShouldNotRun)
.ToLocalChecked());
CompileRun(isolate->GetCurrentContext(), "terminate(); while (true) { }");
CHECK(isolate->IsExecutionTerminating());
}
TEST_F(ThreadTerminationTest, TerminateFromOtherThreadWhileMicrotaskRunning) {
semaphore = new base::Semaphore(0);
TerminatorThread thread(i_isolate());
CHECK(thread.Start());
isolate()->SetMicrotasksPolicy(MicrotasksPolicy::kExplicit);
HandleScope scope(isolate());
Local<ObjectTemplate> global =
CreateGlobalTemplate(isolate(), Signal, DoLoop);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
isolate()->EnqueueMicrotask(
Function::New(isolate()->GetCurrentContext(), MicrotaskLoopForever)
.ToLocalChecked());
// The second task should never be run because we bail out if we're
// terminating.
isolate()->EnqueueMicrotask(
Function::New(isolate()->GetCurrentContext(), MicrotaskShouldNotRun)
.ToLocalChecked());
isolate()->PerformMicrotaskCheckpoint();
isolate()->CancelTerminateExecution();
// Should not run MicrotaskShouldNotRun.
isolate()->PerformMicrotaskCheckpoint();
thread.Join();
delete semaphore;
semaphore = nullptr;
}
static int callback_counter = 0;
static void CounterCallback(Isolate* isolate, void* data) {
callback_counter++;
}
TEST_F(ThreadTerminationTest, PostponeTerminateException) {
HandleScope scope(isolate());
Local<ObjectTemplate> global =
CreateGlobalTemplate(isolate(), TerminateCurrentThread, DoLoop);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
TryCatch try_catch(isolate());
static const char* terminate_and_loop =
"terminate(); for (var i = 0; i < 10000; i++);";
{ // Postpone terminate execution interrupts.
i::PostponeInterruptsScope p1(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
// API interrupts should still be triggered.
isolate()->RequestInterrupt(&CounterCallback, nullptr);
CHECK_EQ(0, callback_counter);
RunJS(terminate_and_loop);
CHECK(!try_catch.HasTerminated());
CHECK_EQ(1, callback_counter);
{ // Postpone API interrupts as well.
i::PostponeInterruptsScope p2(i_isolate(), i::StackGuard::API_INTERRUPT);
// None of the two interrupts should trigger.
isolate()->RequestInterrupt(&CounterCallback, nullptr);
RunJS(terminate_and_loop);
CHECK(!try_catch.HasTerminated());
CHECK_EQ(1, callback_counter);
}
// Now the previously requested API interrupt should trigger.
RunJS(terminate_and_loop);
CHECK(!try_catch.HasTerminated());
CHECK_EQ(2, callback_counter);
}
// Now the previously requested terminate execution interrupt should trigger.
TryRunJS("for (var i = 0; i < 10000; i++);");
CHECK(try_catch.HasTerminated());
CHECK_EQ(2, callback_counter);
}
static void AssertTerminatedCodeRun(Isolate* isolate) {
TryCatch try_catch(isolate);
CompileRun(isolate->GetCurrentContext(), "for (var i = 0; i < 10000; i++);");
CHECK(try_catch.HasTerminated());
}
static void AssertFinishedCodeRun(Isolate* isolate) {
TryCatch try_catch(isolate);
CompileRun(isolate->GetCurrentContext(), "for (var i = 0; i < 10000; i++);");
CHECK(!try_catch.HasTerminated());
}
TEST_F(ThreadTerminationTest, SafeForTerminateException) {
HandleScope scope(isolate());
Local<Context> context = Context::New(isolate());
Context::Scope context_scope(context);
{ // Checks safe for termination scope.
i::PostponeInterruptsScope p1(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
isolate()->TerminateExecution();
AssertFinishedCodeRun(isolate());
{
i::SafeForInterruptsScope p2(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertTerminatedCodeRun(isolate());
AssertFinishedCodeRun(isolate());
isolate()->TerminateExecution();
}
AssertFinishedCodeRun(isolate());
isolate()->CancelTerminateExecution();
}
isolate()->TerminateExecution();
{ // no scope -> postpone
i::PostponeInterruptsScope p1(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertFinishedCodeRun(isolate());
{ // postpone -> postpone
i::PostponeInterruptsScope p2(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertFinishedCodeRun(isolate());
{ // postpone -> safe
i::SafeForInterruptsScope p3(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertTerminatedCodeRun(isolate());
isolate()->TerminateExecution();
{ // safe -> safe
i::SafeForInterruptsScope p4(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertTerminatedCodeRun(isolate());
isolate()->TerminateExecution();
{ // safe -> postpone
i::PostponeInterruptsScope p5(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertFinishedCodeRun(isolate());
} // postpone -> safe
AssertTerminatedCodeRun(isolate());
isolate()->TerminateExecution();
} // safe -> safe
AssertTerminatedCodeRun(isolate());
isolate()->TerminateExecution();
} // safe -> postpone
AssertFinishedCodeRun(isolate());
} // postpone -> postpone
AssertFinishedCodeRun(isolate());
} // postpone -> no scope
AssertTerminatedCodeRun(isolate());
isolate()->TerminateExecution();
{ // no scope -> safe
i::SafeForInterruptsScope p1(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertTerminatedCodeRun(isolate());
} // safe -> no scope
AssertFinishedCodeRun(isolate());
{ // no scope -> postpone
i::PostponeInterruptsScope p1(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
isolate()->TerminateExecution();
{ // postpone -> safe
i::SafeForInterruptsScope p2(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
AssertTerminatedCodeRun(isolate());
} // safe -> postpone
} // postpone -> no scope
AssertFinishedCodeRun(isolate());
{ // no scope -> postpone
i::PostponeInterruptsScope p1(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
{ // postpone -> safe
i::SafeForInterruptsScope p2(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
{ // safe -> postpone
i::PostponeInterruptsScope p3(i_isolate(),
i::StackGuard::TERMINATE_EXECUTION);
isolate()->TerminateExecution();
} // postpone -> safe
AssertTerminatedCodeRun(isolate());
} // safe -> postpone
} // postpone -> no scope
}
void RequestTermianteAndCallAPI(const FunctionCallbackInfo<Value>& args) {
args.GetIsolate()->TerminateExecution();
AssertFinishedCodeRun(args.GetIsolate());
}
TEST_F(TestWithPlatform, IsolateSafeForTerminationMode) {
Isolate::CreateParams create_params;
create_params.only_terminate_in_safe_scope = true;
create_params.array_buffer_allocator =
v8::ArrayBuffer::Allocator::NewDefaultAllocator();
Isolate* isolate = Isolate::New(create_params);
i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
{
Isolate::Scope isolate_scope(isolate);
HandleScope handle_scope(isolate);
Local<ObjectTemplate> global = ObjectTemplate::New(isolate);
global->Set(
String::NewFromUtf8(isolate, "terminateAndCallAPI").ToLocalChecked(),
FunctionTemplate::New(isolate, RequestTermianteAndCallAPI));
Local<Context> context = Context::New(isolate, nullptr, global);
Context::Scope context_scope(context);
// Should postpone termination without safe scope.
isolate->TerminateExecution();
AssertFinishedCodeRun(isolate);
{
Isolate::SafeForTerminationScope safe_scope(isolate);
AssertTerminatedCodeRun(isolate);
}
AssertFinishedCodeRun(isolate);
{
isolate->TerminateExecution();
AssertFinishedCodeRun(isolate);
i::PostponeInterruptsScope p1(i_isolate,
i::StackGuard::TERMINATE_EXECUTION);
{
// SafeForTermination overrides postpone.
Isolate::SafeForTerminationScope safe_scope(isolate);
AssertTerminatedCodeRun(isolate);
}
AssertFinishedCodeRun(isolate);
}
{
Isolate::SafeForTerminationScope safe_scope(isolate);
// Request terminate and call API recursively.
CompileRun(context, "terminateAndCallAPI()");
AssertTerminatedCodeRun(isolate);
}
{
i::PostponeInterruptsScope p1(i_isolate,
i::StackGuard::TERMINATE_EXECUTION);
// Request terminate and call API recursively.
CompileRun(context, "terminateAndCallAPI()");
AssertFinishedCodeRun(isolate);
}
AssertFinishedCodeRun(isolate);
{
Isolate::SafeForTerminationScope safe_scope(isolate);
AssertTerminatedCodeRun(isolate);
}
}
isolate->Dispose();
delete create_params.array_buffer_allocator;
}
TEST_F(ThreadTerminationTest, ErrorObjectAfterTermination) {
HandleScope scope(isolate());
Local<Context> context = Context::New(isolate());
Context::Scope context_scope(context);
isolate()->TerminateExecution();
Local<Value> error = Exception::Error(NewString("error"));
CHECK(error->IsNativeError());
}
void InnerTryCallTerminate(const FunctionCallbackInfo<Value>& args) {
CHECK(!args.GetIsolate()->IsExecutionTerminating());
Isolate* isolate = args.GetIsolate();
Local<Object> global = isolate->GetCurrentContext()->Global();
Local<Function> loop = Local<Function>::Cast(
global
->Get(isolate->GetCurrentContext(),
String::NewFromUtf8(isolate, "loop").ToLocalChecked())
.ToLocalChecked());
i::MaybeHandle<i::Object> exception;
i::MaybeHandle<i::Object> result = i::Execution::TryCall(
reinterpret_cast<i::Isolate*>(isolate), Utils::OpenHandle((*loop)),
Utils::OpenHandle((*global)), 0, nullptr,
i::Execution::MessageHandling::kReport, &exception);
CHECK(result.is_null());
CHECK(exception.is_null());
// TryCall reschedules the termination exception.
CHECK(args.GetIsolate()->IsExecutionTerminating());
}
TEST_F(ThreadTerminationTest, TerminationInInnerTryCall) {
HandleScope scope(isolate());
Local<ObjectTemplate> global_template =
CreateGlobalTemplate(isolate(), TerminateCurrentThread, DoLoopNoCall);
global_template->Set(NewString("inner_try_call_terminate"),
FunctionTemplate::New(isolate(), InnerTryCallTerminate));
Local<Context> context = Context::New(isolate(), nullptr, global_template);
Context::Scope context_scope(context);
{
TryCatch try_catch(isolate());
TryRunJS("inner_try_call_terminate()");
CHECK(try_catch.HasTerminated());
// Any further exectutions in this TryCatch scope would fail.
CHECK(isolate()->IsExecutionTerminating());
}
// Leaving the TryCatch cleared the termination exception.
Maybe<int32_t> result =
RunJS("2 + 2")->Int32Value(isolate()->GetCurrentContext());
CHECK_EQ(4, result.FromJust());
CHECK(!isolate()->IsExecutionTerminating());
}
TEST_F(ThreadTerminationTest, TerminateAndTryCall) {
i::FLAG_allow_natives_syntax = true;
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, DoLoopCancelTerminate);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
{
TryCatch try_catch(isolate());
CHECK(!isolate()->IsExecutionTerminating());
// Terminate execution has been triggered inside TryCall, but re-requested
// to trigger later.
CHECK(TryRunJS("terminate(); reference_error();").IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(!isolate()->IsExecutionTerminating());
Local<Value> value =
context->Global()
->Get(isolate()->GetCurrentContext(), NewString("terminate"))
.ToLocalChecked();
CHECK(value->IsFunction());
// Any further executions in this TryCatch scope fail.
CHECK(!isolate()->IsExecutionTerminating());
CHECK(TryRunJS("1 + 1").IsEmpty());
CHECK(isolate()->IsExecutionTerminating());
}
// Leaving the TryCatch cleared the termination exception.
Maybe<int32_t> result =
RunJS("2 + 2")->Int32Value(isolate()->GetCurrentContext());
CHECK_EQ(4, result.FromJust());
CHECK(!isolate()->IsExecutionTerminating());
}
class ConsoleImpl : public debug::ConsoleDelegate {
private:
void Log(const debug::ConsoleCallArguments& args,
const debug::ConsoleContext&) override {
CompileRun(Isolate::GetCurrent()->GetCurrentContext(), "1 + 1");
}
};
TEST_F(ThreadTerminationTest, TerminateConsole) {
i::FLAG_allow_natives_syntax = true;
ConsoleImpl console;
debug::SetConsoleDelegate(isolate(), &console);
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, DoLoopCancelTerminate);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
{
// setup console global.
HandleScope scope(isolate());
Local<String> name = String::NewFromUtf8Literal(
isolate(), "console", NewStringType::kInternalized);
Local<Value> console =
context->GetExtrasBindingObject()->Get(context, name).ToLocalChecked();
context->Global()->Set(context, name, console).FromJust();
}
CHECK(!isolate()->IsExecutionTerminating());
TryCatch try_catch(isolate());
CHECK(!isolate()->IsExecutionTerminating());
CHECK(TryRunJS("terminate(); console.log(); fail();").IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(isolate()->IsExecutionTerminating());
}
class TerminatorSleeperThread : public base::Thread {
public:
explicit TerminatorSleeperThread(Isolate* isolate, int sleep_ms)
: Thread(Options("TerminatorSlepperThread")),
isolate_(isolate),
sleep_ms_(sleep_ms) {}
void Run() override {
base::OS::Sleep(base::TimeDelta::FromMilliseconds(sleep_ms_));
CHECK(!isolate_->IsExecutionTerminating());
isolate_->TerminateExecution();
}
private:
Isolate* isolate_;
int sleep_ms_;
};
TEST_F(ThreadTerminationTest, TerminateRegExp) {
i::FLAG_allow_natives_syntax = true;
// We want to be stuck regexp execution, so no fallback to linear-time
// engine.
// TODO(mbid,v8:10765): Find a way to test interrupt support of the
// experimental engine.
i::FLAG_enable_experimental_regexp_engine_on_excessive_backtracks = false;
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, DoLoopCancelTerminate);
Local<Context> context = Context::New(isolate(), nullptr, global);
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
TryCatch try_catch(isolate());
CHECK(!isolate()->IsExecutionTerminating());
CHECK(!RunJS("var re = /(x+)+y$/; re.test('x');").IsEmpty());
TerminatorSleeperThread terminator(isolate(), 100);
CHECK(terminator.Start());
CHECK(TryRunJS("re.test('xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'); fail();")
.IsEmpty());
CHECK(try_catch.HasCaught());
CHECK(isolate()->IsExecutionTerminating());
}
TEST_F(ThreadTerminationTest, TerminateInMicrotask) {
Locker locker(isolate());
isolate()->SetMicrotasksPolicy(MicrotasksPolicy::kExplicit);
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, DoLoopCancelTerminate);
Local<Context> context1 = Context::New(isolate(), nullptr, global);
Local<Context> context2 = Context::New(isolate(), nullptr, global);
{
TryCatch try_catch(isolate());
{
Context::Scope context_scope(context1);
CHECK(!isolate()->IsExecutionTerminating());
CHECK(!RunJS("Promise.resolve().then(function() {"
"terminate(); loop(); fail();})")
.IsEmpty());
CHECK(!try_catch.HasCaught());
}
{
Context::Scope context_scope(context2);
CHECK(context2 == isolate()->GetCurrentContext());
CHECK(context2 == isolate()->GetEnteredOrMicrotaskContext());
CHECK(!isolate()->IsExecutionTerminating());
isolate()->PerformMicrotaskCheckpoint();
CHECK(context2 == isolate()->GetCurrentContext());
CHECK(context2 == isolate()->GetEnteredOrMicrotaskContext());
CHECK(try_catch.HasCaught());
CHECK(try_catch.HasTerminated());
// Any further exectutions in this TryCatch scope would fail.
CHECK(isolate()->IsExecutionTerminating());
CHECK(!i_isolate()->stack_guard()->CheckTerminateExecution());
}
}
CHECK(!i_isolate()->stack_guard()->CheckTerminateExecution());
CHECK(!isolate()->IsExecutionTerminating());
}
void TerminationMicrotask(void* data) {
Isolate::GetCurrent()->TerminateExecution();
CompileRun(Isolate::GetCurrent()->GetCurrentContext(), "");
}
void UnreachableMicrotask(void* data) { UNREACHABLE(); }
TEST_F(ThreadTerminationTest, TerminateInApiMicrotask) {
Locker locker(isolate());
isolate()->SetMicrotasksPolicy(MicrotasksPolicy::kExplicit);
HandleScope scope(isolate());
Local<ObjectTemplate> global = CreateGlobalTemplate(
isolate(), TerminateCurrentThread, DoLoopCancelTerminate);
Local<Context> context = Context::New(isolate(), nullptr, global);
{
TryCatch try_catch(isolate());
Context::Scope context_scope(context);
CHECK(!isolate()->IsExecutionTerminating());
isolate()->EnqueueMicrotask(TerminationMicrotask);
isolate()->EnqueueMicrotask(UnreachableMicrotask);
isolate()->PerformMicrotaskCheckpoint();
CHECK(try_catch.HasCaught());
CHECK(try_catch.HasTerminated());
CHECK(isolate()->IsExecutionTerminating());
}
CHECK(!isolate()->IsExecutionTerminating());
}
} // namespace v8
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