v8/test/cctest/test-serialize.cc

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// Copyright 2007-2008 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.
#include <signal.h>
#include "sys/stat.h"
#include "v8.h"
#include "debug.h"
#include "ic-inl.h"
#include "runtime.h"
#include "serialize.h"
#include "scopeinfo.h"
#include "snapshot.h"
#include "cctest.h"
using namespace v8::internal;
static const unsigned kCounters = 256;
static int local_counters[kCounters];
static const char* local_counter_names[kCounters];
static unsigned CounterHash(const char* s) {
unsigned hash = 0;
while (*++s) {
hash |= hash << 5;
hash += *s;
}
return hash;
}
// Callback receiver to track counters in test.
static int* counter_function(const char* name) {
unsigned hash = CounterHash(name) % kCounters;
unsigned original_hash = hash;
USE(original_hash);
while (true) {
if (local_counter_names[hash] == name) {
return &local_counters[hash];
}
if (local_counter_names[hash] == 0) {
local_counter_names[hash] = name;
return &local_counters[hash];
}
if (strcmp(local_counter_names[hash], name) == 0) {
return &local_counters[hash];
}
hash = (hash + 1) % kCounters;
ASSERT(hash != original_hash); // Hash table has been filled up.
}
}
template <class T>
static Address AddressOf(T id) {
return ExternalReference(id).address();
}
template <class T>
static uint32_t Encode(const ExternalReferenceEncoder& encoder, T id) {
return encoder.Encode(AddressOf(id));
}
static int make_code(TypeCode type, int id) {
return static_cast<uint32_t>(type) << kReferenceTypeShift | id;
}
static int register_code(int reg) {
return Debug::k_register_address << kDebugIdShift | reg;
}
TEST(ExternalReferenceEncoder) {
StatsTable::SetCounterFunction(counter_function);
Heap::Setup(false);
ExternalReferenceEncoder encoder;
CHECK_EQ(make_code(BUILTIN, Builtins::ArrayCode),
Encode(encoder, Builtins::ArrayCode));
CHECK_EQ(make_code(RUNTIME_FUNCTION, Runtime::kAbort),
Encode(encoder, Runtime::kAbort));
CHECK_EQ(make_code(IC_UTILITY, IC::kLoadCallbackProperty),
Encode(encoder, IC_Utility(IC::kLoadCallbackProperty)));
CHECK_EQ(make_code(DEBUG_ADDRESS, register_code(3)),
Encode(encoder, Debug_Address(Debug::k_register_address, 3)));
ExternalReference keyed_load_function_prototype =
ExternalReference(&Counters::keyed_load_function_prototype);
CHECK_EQ(make_code(STATS_COUNTER, Counters::k_keyed_load_function_prototype),
encoder.Encode(keyed_load_function_prototype.address()));
ExternalReference passed_function =
ExternalReference::builtin_passed_function();
CHECK_EQ(make_code(UNCLASSIFIED, 1),
encoder.Encode(passed_function.address()));
ExternalReference the_hole_value_location =
ExternalReference::the_hole_value_location();
CHECK_EQ(make_code(UNCLASSIFIED, 2),
encoder.Encode(the_hole_value_location.address()));
ExternalReference stack_guard_limit_address =
ExternalReference::address_of_stack_guard_limit();
CHECK_EQ(make_code(UNCLASSIFIED, 4),
encoder.Encode(stack_guard_limit_address.address()));
CHECK_EQ(make_code(UNCLASSIFIED, 10),
encoder.Encode(ExternalReference::debug_break().address()));
CHECK_EQ(make_code(UNCLASSIFIED, 6),
encoder.Encode(ExternalReference::new_space_start().address()));
CHECK_EQ(make_code(UNCLASSIFIED, 3),
encoder.Encode(ExternalReference::roots_address().address()));
}
TEST(ExternalReferenceDecoder) {
StatsTable::SetCounterFunction(counter_function);
Heap::Setup(false);
ExternalReferenceDecoder decoder;
CHECK_EQ(AddressOf(Builtins::ArrayCode),
decoder.Decode(make_code(BUILTIN, Builtins::ArrayCode)));
CHECK_EQ(AddressOf(Runtime::kAbort),
decoder.Decode(make_code(RUNTIME_FUNCTION, Runtime::kAbort)));
CHECK_EQ(AddressOf(IC_Utility(IC::kLoadCallbackProperty)),
decoder.Decode(make_code(IC_UTILITY, IC::kLoadCallbackProperty)));
CHECK_EQ(AddressOf(Debug_Address(Debug::k_register_address, 3)),
decoder.Decode(make_code(DEBUG_ADDRESS, register_code(3))));
ExternalReference keyed_load_function =
ExternalReference(&Counters::keyed_load_function_prototype);
CHECK_EQ(keyed_load_function.address(),
decoder.Decode(
make_code(STATS_COUNTER,
Counters::k_keyed_load_function_prototype)));
CHECK_EQ(ExternalReference::builtin_passed_function().address(),
decoder.Decode(make_code(UNCLASSIFIED, 1)));
CHECK_EQ(ExternalReference::the_hole_value_location().address(),
decoder.Decode(make_code(UNCLASSIFIED, 2)));
CHECK_EQ(ExternalReference::address_of_stack_guard_limit().address(),
decoder.Decode(make_code(UNCLASSIFIED, 4)));
CHECK_EQ(ExternalReference::debug_break().address(),
decoder.Decode(make_code(UNCLASSIFIED, 10)));
CHECK_EQ(ExternalReference::new_space_start().address(),
decoder.Decode(make_code(UNCLASSIFIED, 6)));
}
static void Serialize() {
#ifdef DEBUG
FLAG_debug_serialization = true;
#endif
StatsTable::SetCounterFunction(counter_function);
v8::HandleScope scope;
const int kExtensionCount = 1;
const char* extension_list[kExtensionCount] = { "v8/gc" };
v8::ExtensionConfiguration extensions(kExtensionCount, extension_list);
Serializer::Enable();
v8::Persistent<v8::Context> env = v8::Context::New(&extensions);
env->Enter();
Snapshot::WriteToFile(FLAG_testing_serialization_file);
}
// Test that the whole heap can be serialized when running from the
// internal snapshot.
// (Smoke test.)
TEST(SerializeInternal) {
Snapshot::Initialize(NULL);
Serialize();
}
// Test that the whole heap can be serialized when running from a
// bootstrapped heap.
// (Smoke test.)
TEST(Serialize) {
if (Snapshot::IsEnabled()) return;
Serialize();
}
// Test that the heap isn't destroyed after a serialization.
TEST(SerializeNondestructive) {
if (Snapshot::IsEnabled()) return;
StatsTable::SetCounterFunction(counter_function);
v8::HandleScope scope;
Serializer::Enable();
v8::Persistent<v8::Context> env = v8::Context::New();
v8::Context::Scope context_scope(env);
Serializer().Serialize();
const char* c_source = "\"abcd\".charAt(2) == 'c'";
v8::Local<v8::String> source = v8::String::New(c_source);
v8::Local<v8::Script> script = v8::Script::Compile(source);
v8::Local<v8::Value> value = script->Run();
CHECK(value->BooleanValue());
}
//----------------------------------------------------------------------------
// Tests that the heap can be deserialized.
static void Deserialize() {
#ifdef DEBUG
FLAG_debug_serialization = true;
#endif
CHECK(Snapshot::Initialize(FLAG_testing_serialization_file));
}
static void SanityCheck() {
v8::HandleScope scope;
#ifdef DEBUG
Heap::Verify();
#endif
CHECK(Top::global()->IsJSObject());
CHECK(Top::global_context()->IsContext());
CHECK(Top::special_function_table()->IsFixedArray());
CHECK(Heap::symbol_table()->IsSymbolTable());
CHECK(!Factory::LookupAsciiSymbol("Empty")->IsFailure());
}
DEPENDENT_TEST(Deserialize, Serialize) {
v8::HandleScope scope;
Deserialize();
SanityCheck();
}
DEPENDENT_TEST(DeserializeAndRunScript, Serialize) {
v8::HandleScope scope;
Deserialize();
const char* c_source = "\"1234\".length";
v8::Local<v8::String> source = v8::String::New(c_source);
v8::Local<v8::Script> script = v8::Script::Compile(source);
CHECK_EQ(4, script->Run()->Int32Value());
}
DEPENDENT_TEST(DeserializeNatives, Serialize) {
v8::HandleScope scope;
Deserialize();
const char* c_source = "\"abcd\".charAt(2) == 'c'";
v8::Local<v8::String> source = v8::String::New(c_source);
v8::Local<v8::Script> script = v8::Script::Compile(source);
v8::Local<v8::Value> value = script->Run();
CHECK(value->BooleanValue());
}
DEPENDENT_TEST(DeserializeExtensions, Serialize) {
v8::HandleScope scope;
Deserialize();
const char* c_source = "gc();";
v8::Local<v8::String> source = v8::String::New(c_source);
v8::Local<v8::Script> script = v8::Script::Compile(source);
v8::Local<v8::Value> value = script->Run();
CHECK(value->IsUndefined());
}
extern "C" void V8_Fatal(const char* file, int line, const char* format, ...);
TEST(TestThatAlwaysSucceeds) {
}
TEST(TestThatAlwaysFails) {
bool ArtificialFailure = false;
CHECK(ArtificialFailure);
}
DEPENDENT_TEST(DependentTestThatAlwaysFails, TestThatAlwaysSucceeds) {
bool ArtificialFailure2 = false;
CHECK(ArtificialFailure2);
}