Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame^] | 1 | // Copyright 2007-2008 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include <signal.h> |
| 29 | |
| 30 | #include "sys/stat.h" |
| 31 | #include "v8.h" |
| 32 | |
| 33 | #include "debug.h" |
| 34 | #include "ic-inl.h" |
| 35 | #include "runtime.h" |
| 36 | #include "serialize.h" |
| 37 | #include "scopeinfo.h" |
| 38 | #include "snapshot.h" |
| 39 | #include "cctest.h" |
| 40 | |
| 41 | using namespace v8::internal; |
| 42 | |
| 43 | static const unsigned kCounters = 256; |
| 44 | static int local_counters[kCounters]; |
| 45 | static const char* local_counter_names[kCounters]; |
| 46 | |
| 47 | |
| 48 | static unsigned CounterHash(const char* s) { |
| 49 | unsigned hash = 0; |
| 50 | while (*++s) { |
| 51 | hash |= hash << 5; |
| 52 | hash += *s; |
| 53 | } |
| 54 | return hash; |
| 55 | } |
| 56 | |
| 57 | |
| 58 | // Callback receiver to track counters in test. |
| 59 | static int* counter_function(const char* name) { |
| 60 | unsigned hash = CounterHash(name) % kCounters; |
| 61 | unsigned original_hash = hash; |
| 62 | USE(original_hash); |
| 63 | while (true) { |
| 64 | if (local_counter_names[hash] == name) { |
| 65 | return &local_counters[hash]; |
| 66 | } |
| 67 | if (local_counter_names[hash] == 0) { |
| 68 | local_counter_names[hash] = name; |
| 69 | return &local_counters[hash]; |
| 70 | } |
| 71 | if (strcmp(local_counter_names[hash], name) == 0) { |
| 72 | return &local_counters[hash]; |
| 73 | } |
| 74 | hash = (hash + 1) % kCounters; |
| 75 | ASSERT(hash != original_hash); // Hash table has been filled up. |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | |
| 80 | template <class T> |
| 81 | static Address AddressOf(T id) { |
| 82 | return ExternalReference(id).address(); |
| 83 | } |
| 84 | |
| 85 | |
| 86 | template <class T> |
| 87 | static uint32_t Encode(const ExternalReferenceEncoder& encoder, T id) { |
| 88 | return encoder.Encode(AddressOf(id)); |
| 89 | } |
| 90 | |
| 91 | |
| 92 | static int make_code(TypeCode type, int id) { |
| 93 | return static_cast<uint32_t>(type) << kReferenceTypeShift | id; |
| 94 | } |
| 95 | |
| 96 | |
| 97 | static int register_code(int reg) { |
| 98 | return Debug::k_register_address << kDebugIdShift | reg; |
| 99 | } |
| 100 | |
| 101 | |
| 102 | TEST(ExternalReferenceEncoder) { |
| 103 | StatsTable::SetCounterFunction(counter_function); |
| 104 | Heap::Setup(false); |
| 105 | ExternalReferenceEncoder encoder; |
| 106 | CHECK_EQ(make_code(BUILTIN, Builtins::ArrayCode), |
| 107 | Encode(encoder, Builtins::ArrayCode)); |
| 108 | CHECK_EQ(make_code(RUNTIME_FUNCTION, Runtime::kAbort), |
| 109 | Encode(encoder, Runtime::kAbort)); |
| 110 | CHECK_EQ(make_code(IC_UTILITY, IC::kLoadCallbackProperty), |
| 111 | Encode(encoder, IC_Utility(IC::kLoadCallbackProperty))); |
| 112 | CHECK_EQ(make_code(DEBUG_ADDRESS, register_code(3)), |
| 113 | Encode(encoder, Debug_Address(Debug::k_register_address, 3))); |
| 114 | ExternalReference keyed_load_function_prototype = |
| 115 | ExternalReference(&Counters::keyed_load_function_prototype); |
| 116 | CHECK_EQ(make_code(STATS_COUNTER, Counters::k_keyed_load_function_prototype), |
| 117 | encoder.Encode(keyed_load_function_prototype.address())); |
| 118 | ExternalReference passed_function = |
| 119 | ExternalReference::builtin_passed_function(); |
| 120 | CHECK_EQ(make_code(UNCLASSIFIED, 1), |
| 121 | encoder.Encode(passed_function.address())); |
| 122 | ExternalReference the_hole_value_location = |
| 123 | ExternalReference::the_hole_value_location(); |
| 124 | CHECK_EQ(make_code(UNCLASSIFIED, 2), |
| 125 | encoder.Encode(the_hole_value_location.address())); |
| 126 | ExternalReference stack_guard_limit_address = |
| 127 | ExternalReference::address_of_stack_guard_limit(); |
| 128 | CHECK_EQ(make_code(UNCLASSIFIED, 4), |
| 129 | encoder.Encode(stack_guard_limit_address.address())); |
| 130 | CHECK_EQ(make_code(UNCLASSIFIED, 10), |
| 131 | encoder.Encode(ExternalReference::debug_break().address())); |
| 132 | CHECK_EQ(make_code(UNCLASSIFIED, 6), |
| 133 | encoder.Encode(ExternalReference::new_space_start().address())); |
| 134 | CHECK_EQ(make_code(UNCLASSIFIED, 3), |
| 135 | encoder.Encode(ExternalReference::roots_address().address())); |
| 136 | } |
| 137 | |
| 138 | |
| 139 | TEST(ExternalReferenceDecoder) { |
| 140 | StatsTable::SetCounterFunction(counter_function); |
| 141 | Heap::Setup(false); |
| 142 | ExternalReferenceDecoder decoder; |
| 143 | CHECK_EQ(AddressOf(Builtins::ArrayCode), |
| 144 | decoder.Decode(make_code(BUILTIN, Builtins::ArrayCode))); |
| 145 | CHECK_EQ(AddressOf(Runtime::kAbort), |
| 146 | decoder.Decode(make_code(RUNTIME_FUNCTION, Runtime::kAbort))); |
| 147 | CHECK_EQ(AddressOf(IC_Utility(IC::kLoadCallbackProperty)), |
| 148 | decoder.Decode(make_code(IC_UTILITY, IC::kLoadCallbackProperty))); |
| 149 | CHECK_EQ(AddressOf(Debug_Address(Debug::k_register_address, 3)), |
| 150 | decoder.Decode(make_code(DEBUG_ADDRESS, register_code(3)))); |
| 151 | ExternalReference keyed_load_function = |
| 152 | ExternalReference(&Counters::keyed_load_function_prototype); |
| 153 | CHECK_EQ(keyed_load_function.address(), |
| 154 | decoder.Decode( |
| 155 | make_code(STATS_COUNTER, |
| 156 | Counters::k_keyed_load_function_prototype))); |
| 157 | CHECK_EQ(ExternalReference::builtin_passed_function().address(), |
| 158 | decoder.Decode(make_code(UNCLASSIFIED, 1))); |
| 159 | CHECK_EQ(ExternalReference::the_hole_value_location().address(), |
| 160 | decoder.Decode(make_code(UNCLASSIFIED, 2))); |
| 161 | CHECK_EQ(ExternalReference::address_of_stack_guard_limit().address(), |
| 162 | decoder.Decode(make_code(UNCLASSIFIED, 4))); |
| 163 | CHECK_EQ(ExternalReference::debug_break().address(), |
| 164 | decoder.Decode(make_code(UNCLASSIFIED, 10))); |
| 165 | CHECK_EQ(ExternalReference::new_space_start().address(), |
| 166 | decoder.Decode(make_code(UNCLASSIFIED, 6))); |
| 167 | } |
| 168 | |
| 169 | |
| 170 | static void Serialize() { |
| 171 | #ifdef DEBUG |
| 172 | FLAG_debug_serialization = true; |
| 173 | #endif |
| 174 | StatsTable::SetCounterFunction(counter_function); |
| 175 | |
| 176 | v8::HandleScope scope; |
| 177 | const int kExtensionCount = 1; |
| 178 | const char* extension_list[kExtensionCount] = { "v8/gc" }; |
| 179 | v8::ExtensionConfiguration extensions(kExtensionCount, extension_list); |
| 180 | Serializer::Enable(); |
| 181 | v8::Persistent<v8::Context> env = v8::Context::New(&extensions); |
| 182 | env->Enter(); |
| 183 | |
| 184 | Snapshot::WriteToFile(FLAG_testing_serialization_file); |
| 185 | } |
| 186 | |
| 187 | |
| 188 | // Test that the whole heap can be serialized when running from the |
| 189 | // internal snapshot. |
| 190 | // (Smoke test.) |
| 191 | TEST(SerializeInternal) { |
| 192 | Snapshot::Initialize(NULL); |
| 193 | Serialize(); |
| 194 | } |
| 195 | |
| 196 | |
| 197 | // Test that the whole heap can be serialized when running from a |
| 198 | // bootstrapped heap. |
| 199 | // (Smoke test.) |
| 200 | TEST(Serialize) { |
| 201 | if (Snapshot::IsEnabled()) return; |
| 202 | Serialize(); |
| 203 | } |
| 204 | |
| 205 | |
| 206 | // Test that the heap isn't destroyed after a serialization. |
| 207 | TEST(SerializeNondestructive) { |
| 208 | if (Snapshot::IsEnabled()) return; |
| 209 | StatsTable::SetCounterFunction(counter_function); |
| 210 | v8::HandleScope scope; |
| 211 | Serializer::Enable(); |
| 212 | v8::Persistent<v8::Context> env = v8::Context::New(); |
| 213 | v8::Context::Scope context_scope(env); |
| 214 | Serializer().Serialize(); |
| 215 | const char* c_source = "\"abcd\".charAt(2) == 'c'"; |
| 216 | v8::Local<v8::String> source = v8::String::New(c_source); |
| 217 | v8::Local<v8::Script> script = v8::Script::Compile(source); |
| 218 | v8::Local<v8::Value> value = script->Run(); |
| 219 | CHECK(value->BooleanValue()); |
| 220 | } |
| 221 | |
| 222 | //---------------------------------------------------------------------------- |
| 223 | // Tests that the heap can be deserialized. |
| 224 | |
| 225 | static void Deserialize() { |
| 226 | #ifdef DEBUG |
| 227 | FLAG_debug_serialization = true; |
| 228 | #endif |
| 229 | CHECK(Snapshot::Initialize(FLAG_testing_serialization_file)); |
| 230 | } |
| 231 | |
| 232 | |
| 233 | static void SanityCheck() { |
| 234 | v8::HandleScope scope; |
| 235 | #ifdef DEBUG |
| 236 | Heap::Verify(); |
| 237 | #endif |
| 238 | CHECK(Top::global()->IsJSObject()); |
| 239 | CHECK(Top::global_context()->IsContext()); |
| 240 | CHECK(Top::special_function_table()->IsFixedArray()); |
| 241 | CHECK(Heap::symbol_table()->IsSymbolTable()); |
| 242 | CHECK(!Factory::LookupAsciiSymbol("Empty")->IsFailure()); |
| 243 | } |
| 244 | |
| 245 | |
| 246 | DEPENDENT_TEST(Deserialize, Serialize) { |
| 247 | v8::HandleScope scope; |
| 248 | |
| 249 | Deserialize(); |
| 250 | |
| 251 | SanityCheck(); |
| 252 | } |
| 253 | |
| 254 | DEPENDENT_TEST(DeserializeAndRunScript, Serialize) { |
| 255 | v8::HandleScope scope; |
| 256 | |
| 257 | Deserialize(); |
| 258 | |
| 259 | const char* c_source = "\"1234\".length"; |
| 260 | v8::Local<v8::String> source = v8::String::New(c_source); |
| 261 | v8::Local<v8::Script> script = v8::Script::Compile(source); |
| 262 | CHECK_EQ(4, script->Run()->Int32Value()); |
| 263 | } |
| 264 | |
| 265 | |
| 266 | DEPENDENT_TEST(DeserializeNatives, Serialize) { |
| 267 | v8::HandleScope scope; |
| 268 | |
| 269 | Deserialize(); |
| 270 | |
| 271 | const char* c_source = "\"abcd\".charAt(2) == 'c'"; |
| 272 | v8::Local<v8::String> source = v8::String::New(c_source); |
| 273 | v8::Local<v8::Script> script = v8::Script::Compile(source); |
| 274 | v8::Local<v8::Value> value = script->Run(); |
| 275 | CHECK(value->BooleanValue()); |
| 276 | } |
| 277 | |
| 278 | |
| 279 | DEPENDENT_TEST(DeserializeExtensions, Serialize) { |
| 280 | v8::HandleScope scope; |
| 281 | |
| 282 | Deserialize(); |
| 283 | const char* c_source = "gc();"; |
| 284 | v8::Local<v8::String> source = v8::String::New(c_source); |
| 285 | v8::Local<v8::Script> script = v8::Script::Compile(source); |
| 286 | v8::Local<v8::Value> value = script->Run(); |
| 287 | CHECK(value->IsUndefined()); |
| 288 | } |