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v8/test/cctest/cctest.h
Nikolaos Papaspyrou f81430caa9 [heap] Enable conservative stack scanning on tests 
Since its introduction (behind a compile-time flag), conservative stack
scanning was disabled by default on tests. This CL inverts this logic,
enabling CSS by default for all tests that do not define an explicit
scope to disable it.

Bug: v8:13257
Change-Id: I5ea4249d02f69b0b1e195415c2562daf5d8c0ea9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4100912
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org>
Cr-Commit-Position: refs/heads/main@{#84848}
2022-12-14 16:14:12 +00:00

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// Copyright 2008 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.
#ifndef CCTEST_H_
#define CCTEST_H_
#include <memory>
#include "include/libplatform/libplatform.h"
#include "include/v8-platform.h"
#include "src/base/enum-set.h"
#include "src/codegen/register-configuration.h"
#include "src/debug/debug-interface.h"
#include "src/execution/isolate-inl.h"
#include "src/execution/simulator.h"
#include "src/heap/factory.h"
#include "src/objects/js-function.h"
#include "src/objects/objects.h"
#include "src/zone/accounting-allocator.h"
namespace v8 {
namespace base {
class RandomNumberGenerator;
} // namespace base
namespace internal {
const auto GetRegConfig = RegisterConfiguration::Default;
class HandleScope;
class Zone;
namespace compiler {
class JSHeapBroker;
} // namespace compiler
} // namespace internal
} // namespace v8
#ifndef TEST
#define TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, true, true, \
nullptr); \
static void Test##Name()
#endif
#ifndef UNINITIALIZED_TEST
#define UNINITIALIZED_TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, true, false, \
nullptr); \
static void Test##Name()
#endif
#ifndef TEST_WITH_PLATFORM
#define TEST_WITH_PLATFORM(Name, PlatformClass) \
static void Test##Name(PlatformClass& platform); \
static void TestWithoutPlatform##Name() { \
Test##Name(*static_cast<PlatformClass*>(i::V8::GetCurrentPlatform())); \
} \
CcTest register_test_##Name(TestWithoutPlatform##Name, __FILE__, #Name, \
true, true, \
[]() -> std::unique_ptr<TestPlatform> { \
return std::make_unique<PlatformClass>(); \
}); \
static void Test##Name(PlatformClass& platform)
#endif
#ifndef DISABLED_TEST
#define DISABLED_TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, false, true, \
nullptr); \
static void Test##Name()
#endif
// Similar to TEST, but used when test definitions appear as members of a
// (probably parameterized) class. This allows re-using the given tests multiple
// times. For this to work, the following conditions must hold:
// 1. The class has a template parameter named kTestFileName of type char
// const*, which is instantiated with __FILE__ at the *use site*, in order
// to correctly associate the tests with the test suite using them.
// 2. To actually execute the tests, create an instance of the class
// containing the MEMBER_TESTs.
#define MEMBER_TEST(Name) \
CcTest register_test_##Name = \
CcTest(Test##Name, kTestFileName, #Name, true, true, nullptr); \
static void Test##Name()
#define EXTENSION_LIST(V) \
V(GC_EXTENSION, "v8/gc") \
V(PRINT_EXTENSION, "v8/print") \
V(PROFILER_EXTENSION, "v8/profiler") \
V(TRACE_EXTENSION, "v8/trace")
#define DEFINE_EXTENSION_ID(Name, Ident) Name##_ID,
enum CcTestExtensionId { EXTENSION_LIST(DEFINE_EXTENSION_ID) kMaxExtensions };
#undef DEFINE_EXTENSION_ID
using CcTestExtensionFlags = v8::base::EnumSet<CcTestExtensionId>;
#define DEFINE_EXTENSION_NAME(Name, Ident) Ident,
static constexpr const char* kExtensionName[kMaxExtensions] = {
EXTENSION_LIST(DEFINE_EXTENSION_NAME)};
#undef DEFINE_EXTENSION_NAME
class CcTest;
class TestPlatform;
using CcTestMapType = std::map<std::string, CcTest*>;
class CcTest {
public:
using TestFunction = void();
using TestPlatformFactory = std::unique_ptr<TestPlatform>();
CcTest(TestFunction* callback, const char* file, const char* name,
bool enabled, bool initialize,
TestPlatformFactory* platform_factory = nullptr);
void Run(const char* argv0);
static v8::Isolate* isolate() {
CHECK_NOT_NULL(isolate_);
v8::base::Relaxed_Store(&isolate_used_, 1);
return isolate_;
}
static i::Isolate* InitIsolateOnce() {
if (!initialize_called_) InitializeVM();
return i_isolate();
}
static i::Isolate* i_isolate() {
return reinterpret_cast<i::Isolate*>(isolate());
}
static i::Heap* heap();
static i::ReadOnlyHeap* read_only_heap();
static v8::Platform* default_platform() { return default_platform_; }
static void AddGlobalFunction(v8::Local<v8::Context> env, const char* name,
v8::FunctionCallback callback);
static void CollectGarbage(i::AllocationSpace space,
i::Isolate* isolate = nullptr);
static void CollectAllGarbage(i::Isolate* isolate = nullptr);
static void CollectAllAvailableGarbage(i::Isolate* isolate = nullptr);
static void PreciseCollectAllGarbage(i::Isolate* isolate = nullptr);
static void CollectSharedGarbage(i::Isolate* isolate = nullptr);
static i::Handle<i::String> MakeString(const char* str);
static i::Handle<i::String> MakeName(const char* str, int suffix);
static v8::base::RandomNumberGenerator* random_number_generator();
static v8::Local<v8::Object> global();
static v8::ArrayBuffer::Allocator* array_buffer_allocator() {
return allocator_;
}
static void set_array_buffer_allocator(
v8::ArrayBuffer::Allocator* allocator) {
allocator_ = allocator;
}
// TODO(dcarney): Remove.
// This must be called first in a test.
static void InitializeVM();
// Helper function to configure a context.
// Must be in a HandleScope.
static v8::Local<v8::Context> NewContext(
v8::Isolate* isolate = CcTest::isolate()) {
return NewContext({}, isolate);
}
static v8::Local<v8::Context> NewContext(
CcTestExtensionFlags extension_flags,
v8::Isolate* isolate = CcTest::isolate());
static v8::Local<v8::Context> NewContext(
std::initializer_list<CcTestExtensionId> extensions,
v8::Isolate* isolate = CcTest::isolate()) {
return NewContext(CcTestExtensionFlags{extensions}, isolate);
}
private:
static std::unordered_map<std::string, CcTest*>* tests_;
static v8::ArrayBuffer::Allocator* allocator_;
static v8::Isolate* isolate_;
static v8::Platform* default_platform_;
static bool initialize_called_;
static v8::base::Atomic32 isolate_used_;
TestFunction* callback_;
bool initialize_;
TestPlatformFactory* test_platform_factory_;
friend int main(int argc, char** argv);
friend class ManualGCScope;
};
// Switches between all the Api tests using the threading support.
// In order to get a surprising but repeatable pattern of thread
// switching it has extra semaphores to control the order in which
// the tests alternate, not relying solely on the big V8 lock.
//
// A test is augmented with calls to ApiTestFuzzer::Fuzz() in its
// callbacks. This will have no effect when we are not running the
// thread fuzzing test. In the thread fuzzing test it will
// pseudorandomly select a successor thread and switch execution
// to that thread, suspending the current test.
class ApiTestFuzzer: public v8::base::Thread {
public:
void CallTest();
// The ApiTestFuzzer is also a Thread, so it has a Run method.
void Run() override;
enum PartOfTest {
FIRST_PART,
SECOND_PART,
THIRD_PART,
FOURTH_PART,
FIFTH_PART,
SIXTH_PART,
SEVENTH_PART,
EIGHTH_PART,
LAST_PART = EIGHTH_PART
};
static void SetUp(PartOfTest part);
static void RunAllTests();
static void TearDown();
// This method switches threads if we are running the Threading test.
// Otherwise it does nothing.
static void Fuzz();
private:
explicit ApiTestFuzzer(int num)
: Thread(Options("ApiTestFuzzer")),
test_number_(num),
gate_(0),
active_(true) {}
~ApiTestFuzzer() override = default;
static bool fuzzing_;
static int tests_being_run_;
static int current_;
static int active_tests_;
static bool NextThread();
int test_number_;
v8::base::Semaphore gate_;
bool active_;
void ContextSwitch();
static int GetNextTestNumber();
static v8::base::Semaphore all_tests_done_;
};
#define THREADED_TEST(Name) \
static void Test##Name(); \
RegisterThreadedTest register_##Name(Test##Name, #Name); \
/* */ TEST(Name)
class RegisterThreadedTest {
public:
explicit RegisterThreadedTest(CcTest::TestFunction* callback,
const char* name)
: fuzzer_(nullptr), callback_(callback), name_(name) {
prev_ = first_;
first_ = this;
count_++;
}
static int count() { return count_; }
static RegisterThreadedTest* nth(int i) {
CHECK(i < count());
RegisterThreadedTest* current = first_;
while (i > 0) {
i--;
current = current->prev_;
}
return current;
}
CcTest::TestFunction* callback() { return callback_; }
ApiTestFuzzer* fuzzer_;
const char* name() { return name_; }
private:
static RegisterThreadedTest* first_;
static int count_;
CcTest::TestFunction* callback_;
RegisterThreadedTest* prev_;
const char* name_;
};
// A LocalContext holds a reference to a v8::Context.
class LocalContext {
public:
LocalContext(v8::Isolate* isolate,
v8::ExtensionConfiguration* extensions = nullptr,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>()) {
Initialize(isolate, extensions, global_template, global_object);
}
LocalContext(v8::ExtensionConfiguration* extensions = nullptr,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>()) {
Initialize(CcTest::isolate(), extensions, global_template, global_object);
}
virtual ~LocalContext();
v8::Context* operator->() {
return *reinterpret_cast<v8::Context**>(&context_);
}
v8::Context* operator*() { return operator->(); }
bool IsReady() { return !context_.IsEmpty(); }
v8::Local<v8::Context> local() const {
return v8::Local<v8::Context>::New(isolate_, context_);
}
private:
void Initialize(v8::Isolate* isolate, v8::ExtensionConfiguration* extensions,
v8::Local<v8::ObjectTemplate> global_template,
v8::Local<v8::Value> global_object);
v8::Persistent<v8::Context> context_;
v8::Isolate* isolate_;
};
static inline uint16_t* AsciiToTwoByteString(const char* source) {
size_t array_length = strlen(source) + 1;
uint16_t* converted = i::NewArray<uint16_t>(array_length);
for (size_t i = 0; i < array_length; i++) converted[i] = source[i];
return converted;
}
template <typename T>
static inline i::Handle<T> GetGlobal(const char* name) {
i::Isolate* isolate = CcTest::i_isolate();
i::Handle<i::String> str_name =
isolate->factory()->InternalizeUtf8String(name);
i::Handle<i::Object> value =
i::Object::GetProperty(isolate, isolate->global_object(), str_name)
.ToHandleChecked();
return i::Handle<T>::cast(value);
}
static inline v8::Local<v8::Boolean> v8_bool(bool val) {
return v8::Boolean::New(v8::Isolate::GetCurrent(), val);
}
static inline v8::Local<v8::Value> v8_num(double x) {
return v8::Number::New(v8::Isolate::GetCurrent(), x);
}
static inline v8::Local<v8::Integer> v8_int(int32_t x) {
return v8::Integer::New(v8::Isolate::GetCurrent(), x);
}
static inline v8::Local<v8::BigInt> v8_bigint(int64_t x) {
return v8::BigInt::New(v8::Isolate::GetCurrent(), x);
}
static inline v8::Local<v8::String> v8_str(const char* x) {
return v8::String::NewFromUtf8(v8::Isolate::GetCurrent(), x).ToLocalChecked();
}
static inline v8::Local<v8::String> v8_str(v8::Isolate* isolate,
const char* x) {
return v8::String::NewFromUtf8(isolate, x).ToLocalChecked();
}
static inline v8::Local<v8::Symbol> v8_symbol(const char* name) {
return v8::Symbol::New(v8::Isolate::GetCurrent(), v8_str(name));
}
static inline v8::Local<v8::Script> v8_compile(v8::Local<v8::String> x) {
v8::Local<v8::Script> result;
CHECK(v8::Script::Compile(v8::Isolate::GetCurrent()->GetCurrentContext(), x)
.ToLocal(&result));
return result;
}
static inline v8::Local<v8::Script> v8_compile(const char* x) {
return v8_compile(v8_str(x));
}
static inline v8::MaybeLocal<v8::Script> v8_try_compile(
v8::Local<v8::String> x) {
return v8::Script::Compile(v8::Isolate::GetCurrent()->GetCurrentContext(), x);
}
static inline v8::MaybeLocal<v8::Script> v8_try_compile(const char* x) {
return v8_try_compile(v8_str(x));
}
static inline int32_t v8_run_int32value(v8::Local<v8::Script> script) {
v8::Local<v8::Context> context = CcTest::isolate()->GetCurrentContext();
return script->Run(context).ToLocalChecked()->Int32Value(context).FromJust();
}
static inline v8::Local<v8::Script> CompileWithOrigin(
v8::Local<v8::String> source, v8::Local<v8::String> origin_url,
bool is_shared_cross_origin) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::ScriptOrigin origin(isolate, origin_url, 0, 0, is_shared_cross_origin);
v8::ScriptCompiler::Source script_source(source, origin);
return v8::ScriptCompiler::Compile(isolate->GetCurrentContext(),
&script_source)
.ToLocalChecked();
}
static inline v8::Local<v8::Script> CompileWithOrigin(
v8::Local<v8::String> source, const char* origin_url,
bool is_shared_cross_origin) {
return CompileWithOrigin(source, v8_str(origin_url), is_shared_cross_origin);
}
static inline v8::Local<v8::Script> CompileWithOrigin(
const char* source, const char* origin_url, bool is_shared_cross_origin) {
return CompileWithOrigin(v8_str(source), v8_str(origin_url),
is_shared_cross_origin);
}
// Helper functions that compile and run the source.
static inline v8::MaybeLocal<v8::Value> CompileRun(
v8::Local<v8::Context> context, const char* source) {
return v8::Script::Compile(context, v8_str(source))
.ToLocalChecked()
->Run(context);
}
static inline v8::Local<v8::Value> CompileRunChecked(v8::Isolate* isolate,
const char* source) {
v8::Local<v8::String> source_string =
v8::String::NewFromUtf8(isolate, source).ToLocalChecked();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::Local<v8::Script> script =
v8::Script::Compile(context, source_string).ToLocalChecked();
return script->Run(context).ToLocalChecked();
}
static inline v8::Local<v8::Value> CompileRun(v8::Local<v8::String> source) {
v8::Local<v8::Value> result;
if (v8_compile(source)
->Run(v8::Isolate::GetCurrent()->GetCurrentContext())
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Value>();
}
// Helper functions that compile and run the source.
static inline v8::Local<v8::Value> CompileRun(const char* source) {
return CompileRun(v8_str(source));
}
static inline v8::Local<v8::Value> CompileRun(
v8::Local<v8::Context> context, v8::ScriptCompiler::Source* script_source,
v8::ScriptCompiler::CompileOptions options) {
v8::Local<v8::Value> result;
if (v8::ScriptCompiler::Compile(context, script_source, options)
.ToLocalChecked()
->Run(context)
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Value>();
}
// Helper functions that compile and run the source with given origin.
static inline v8::Local<v8::Value> CompileRunWithOrigin(const char* source,
const char* origin_url,
int line_number,
int column_number) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::ScriptOrigin origin(isolate, v8_str(origin_url), line_number,
column_number);
v8::ScriptCompiler::Source script_source(v8_str(source), origin);
return CompileRun(context, &script_source,
v8::ScriptCompiler::CompileOptions());
}
static inline v8::Local<v8::Value> CompileRunWithOrigin(
v8::Local<v8::String> source, const char* origin_url) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::ScriptCompiler::Source script_source(
source, v8::ScriptOrigin(isolate, v8_str(origin_url)));
return CompileRun(context, &script_source,
v8::ScriptCompiler::CompileOptions());
}
static inline v8::Local<v8::Value> CompileRunWithOrigin(
const char* source, const char* origin_url) {
return CompileRunWithOrigin(v8_str(source), origin_url);
}
// Run a ScriptStreamingTask in a separate thread.
class StreamerThread : public v8::base::Thread {
public:
static void StartThreadForTaskAndJoin(
v8::ScriptCompiler::ScriptStreamingTask* task) {
StreamerThread thread(task);
CHECK(thread.Start());
thread.Join();
}
explicit StreamerThread(v8::ScriptCompiler::ScriptStreamingTask* task)
: Thread(Thread::Options()), task_(task) {}
void Run() override { task_->Run(); }
private:
v8::ScriptCompiler::ScriptStreamingTask* task_;
};
// Takes a JSFunction and runs it through the test version of the optimizing
// pipeline, allocating the temporary compilation artifacts in a given Zone.
// For possible {flags} values, look at OptimizedCompilationInfo::Flag. If
// {out_broker} is not nullptr, returns the JSHeapBroker via that (transferring
// ownership to the caller).
i::Handle<i::JSFunction> Optimize(
i::Handle<i::JSFunction> function, i::Zone* zone, i::Isolate* isolate,
uint32_t flags,
std::unique_ptr<i::compiler::JSHeapBroker>* out_broker = nullptr);
static inline void ExpectString(const char* code, const char* expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsString());
v8::String::Utf8Value utf8(v8::Isolate::GetCurrent(), result);
CHECK_EQ(0, strcmp(expected, *utf8));
}
static inline void ExpectInt32(const char* code, int expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsInt32());
CHECK_EQ(expected,
result->Int32Value(v8::Isolate::GetCurrent()->GetCurrentContext())
.FromJust());
}
static inline void ExpectBoolean(const char* code, bool expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsBoolean());
CHECK_EQ(expected, result->BooleanValue(v8::Isolate::GetCurrent()));
}
static inline void ExpectTrue(const char* code) {
ExpectBoolean(code, true);
}
static inline void ExpectFalse(const char* code) {
ExpectBoolean(code, false);
}
static inline void ExpectObject(const char* code,
v8::Local<v8::Value> expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->SameValue(expected));
}
static inline void ExpectUndefined(const char* code) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsUndefined());
}
static inline void ExpectNull(const char* code) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsNull());
}
static inline void CheckDoubleEquals(double expected, double actual) {
const double kEpsilon = 1e-10;
CHECK_LE(expected, actual + kEpsilon);
CHECK_GE(expected, actual - kEpsilon);
}
static v8::debug::DebugDelegate dummy_delegate;
static inline void EnableDebugger(v8::Isolate* isolate) {
v8::debug::SetDebugDelegate(isolate, &dummy_delegate);
}
static inline void DisableDebugger(v8::Isolate* isolate) {
v8::debug::SetDebugDelegate(isolate, nullptr);
}
static inline void EmptyMessageQueues(v8::Isolate* isolate) {
while (v8::platform::PumpMessageLoop(CcTest::default_platform(), isolate)) {
}
}
class InitializedHandleScopeImpl;
class V8_NODISCARD InitializedHandleScope {
public:
explicit InitializedHandleScope(i::Isolate* isolate = nullptr);
~InitializedHandleScope();
// Prefixing the below with main_ reduces a lot of naming clashes.
i::Isolate* main_isolate() { return main_isolate_; }
private:
i::Isolate* main_isolate_;
std::unique_ptr<InitializedHandleScopeImpl> initialized_handle_scope_impl_;
};
class V8_NODISCARD HandleAndZoneScope : public InitializedHandleScope {
public:
explicit HandleAndZoneScope(bool support_zone_compression = false);
~HandleAndZoneScope();
// Prefixing the below with main_ reduces a lot of naming clashes.
i::Zone* main_zone() { return main_zone_.get(); }
private:
v8::internal::AccountingAllocator allocator_;
std::unique_ptr<i::Zone> main_zone_;
};
class StaticOneByteResource : public v8::String::ExternalOneByteStringResource {
public:
explicit StaticOneByteResource(const char* data) : data_(data) {}
~StaticOneByteResource() override = default;
const char* data() const override { return data_; }
size_t length() const override { return strlen(data_); }
private:
const char* data_;
};
// ManualGCScope allows for disabling GC heuristics. This is useful for tests
// that want to check specific corner cases around GC.
//
// The scope will finalize any ongoing GC on the provided Isolate. If no Isolate
// is manually provided, it is assumed that a CcTest setup (e.g.
// CcTest::InitializeVM()) is used.
class V8_NODISCARD ManualGCScope {
public:
explicit ManualGCScope(
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(CcTest::isolate_));
~ManualGCScope();
private:
const bool flag_concurrent_marking_;
const bool flag_concurrent_sweeping_;
const bool flag_concurrent_minor_mc_marking_;
const bool flag_stress_concurrent_allocation_;
const bool flag_stress_incremental_marking_;
const bool flag_parallel_marking_;
const bool flag_detect_ineffective_gcs_near_heap_limit_;
};
// This is a base class that can be overridden to implement a test platform. It
// delegates all operations to the default platform.
class TestPlatform : public v8::Platform {
public:
~TestPlatform() override = default;
// v8::Platform implementation.
v8::PageAllocator* GetPageAllocator() override;
void OnCriticalMemoryPressure() override;
int NumberOfWorkerThreads() override;
std::shared_ptr<v8::TaskRunner> GetForegroundTaskRunner(
v8::Isolate* isolate) override;
void CallOnWorkerThread(std::unique_ptr<v8::Task> task) override;
void CallDelayedOnWorkerThread(std::unique_ptr<v8::Task> task,
double delay_in_seconds) override;
std::unique_ptr<v8::JobHandle> PostJob(
v8::TaskPriority priority,
std::unique_ptr<v8::JobTask> job_task) override;
std::unique_ptr<v8::JobHandle> CreateJob(
v8::TaskPriority priority,
std::unique_ptr<v8::JobTask> job_task) override;
double MonotonicallyIncreasingTime() override;
double CurrentClockTimeMillis() override;
bool IdleTasksEnabled(v8::Isolate* isolate) override;
v8::TracingController* GetTracingController() override;
protected:
TestPlatform() = default;
};
#if defined(USE_SIMULATOR)
class SimulatorHelper {
public:
inline bool Init(v8::Isolate* isolate) {
simulator_ = reinterpret_cast<v8::internal::Isolate*>(isolate)
->thread_local_top()
->simulator_;
// Check if there is active simulator.
return simulator_ != nullptr;
}
inline void FillRegisters(v8::RegisterState* state) {
#if V8_TARGET_ARCH_ARM
state->pc = reinterpret_cast<void*>(simulator_->get_pc());
state->sp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::sp));
state->fp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::r11));
state->lr = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::lr));
#elif V8_TARGET_ARCH_ARM64
if (simulator_->sp() == 0 || simulator_->fp() == 0) {
// It's possible that the simulator is interrupted while it is updating
// the sp or fp register. ARM64 simulator does this in two steps:
// first setting it to zero and then setting it to a new value.
// Bailout if sp/fp doesn't contain the new value.
return;
}
state->pc = reinterpret_cast<void*>(simulator_->pc());
state->sp = reinterpret_cast<void*>(simulator_->sp());
state->fp = reinterpret_cast<void*>(simulator_->fp());
state->lr = reinterpret_cast<void*>(simulator_->lr());
#elif V8_TARGET_ARCH_MIPS64
state->pc = reinterpret_cast<void*>(simulator_->get_pc());
state->sp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::sp));
state->fp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::fp));
#elif V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
state->pc = reinterpret_cast<void*>(simulator_->get_pc());
state->sp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::sp));
state->fp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::fp));
state->lr = reinterpret_cast<void*>(simulator_->get_lr());
#elif V8_TARGET_ARCH_S390 || V8_TARGET_ARCH_S390X
state->pc = reinterpret_cast<void*>(simulator_->get_pc());
state->sp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::sp));
state->fp = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::fp));
state->lr = reinterpret_cast<void*>(
simulator_->get_register(v8::internal::Simulator::ra));
#endif
}
private:
v8::internal::Simulator* simulator_;
};
#endif // USE_SIMULATOR
// The following should correspond to Chromium's kV8DOMWrapperTypeIndex and
// kV8DOMWrapperObjectIndex.
static const int kV8WrapperTypeIndex = 0;
static const int kV8WrapperObjectIndex = 1;
enum class ApiCheckerResult : uint8_t {
kNotCalled = 0,
kSlowCalled = 1 << 0,
kFastCalled = 1 << 1,
};
using ApiCheckerResultFlags = v8::base::Flags<ApiCheckerResult>;
DEFINE_OPERATORS_FOR_FLAGS(ApiCheckerResultFlags)
bool IsValidUnwrapObject(v8::Object* object);
template <typename T>
T* GetInternalField(v8::Object* wrapper) {
assert(kV8WrapperObjectIndex < wrapper->InternalFieldCount());
return reinterpret_cast<T*>(
wrapper->GetAlignedPointerFromInternalField(kV8WrapperObjectIndex));
}
#endif // ifndef CCTEST_H_
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