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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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10974 reinterpret_cast<i::Address>(function)); | 10974 reinterpret_cast<i::Address>(function)); |
10975 CHECK(code != NULL); | 10975 CHECK(code != NULL); |
10976 | 10976 |
10977 if (bar_ptr != NULL && code == (*bar_ptr)->code()) | 10977 if (bar_ptr != NULL && code == (*bar_ptr)->code()) |
10978 ++bar_count; | 10978 ++bar_count; |
10979 | 10979 |
10980 if (foo_ptr != NULL && code == (*foo_ptr)->code()) | 10980 if (foo_ptr != NULL && code == (*foo_ptr)->code()) |
10981 ++foo_count; | 10981 ++foo_count; |
10982 | 10982 |
10983 // TODO(siggi): Verify return_addr_location. | 10983 // TODO(siggi): Verify return_addr_location. |
| 10984 // This can be done by capturing JitCodeEvents, but requires an ordered |
| 10985 // collection. |
10984 } | 10986 } |
10985 | 10987 |
10986 | 10988 |
10987 static void RunLoopInNewEnv() { | 10989 static void RunLoopInNewEnv() { |
10988 bar_ptr = NULL; | 10990 bar_ptr = NULL; |
10989 foo_ptr = NULL; | 10991 foo_ptr = NULL; |
10990 | 10992 |
10991 v8::HandleScope outer; | 10993 v8::HandleScope outer; |
10992 v8::Persistent<Context> env = Context::New(); | 10994 v8::Persistent<Context> env = Context::New(); |
10993 env->Enter(); | 10995 env->Enter(); |
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11059 // functions from the previous invocation. | 11061 // functions from the previous invocation. |
11060 v8::internal::Isolate::Current()->compilation_cache()->Clear(); | 11062 v8::internal::Isolate::Current()->compilation_cache()->Clear(); |
11061 | 11063 |
11062 // Verify that entry hooking is now disabled. | 11064 // Verify that entry hooking is now disabled. |
11063 RunLoopInNewEnv(); | 11065 RunLoopInNewEnv(); |
11064 CHECK_EQ(0u, bar_count); | 11066 CHECK_EQ(0u, bar_count); |
11065 CHECK_EQ(0u, foo_count); | 11067 CHECK_EQ(0u, foo_count); |
11066 } | 11068 } |
11067 | 11069 |
11068 | 11070 |
| 11071 static i::HashMap* code_map = NULL; |
| 11072 static int saw_bar = 0; |
| 11073 static int move_events = 0; |
| 11074 |
| 11075 |
| 11076 static bool FunctionNameIs(const char* expected, |
| 11077 const v8::JitCodeEvent* event) { |
| 11078 // Log lines for functions are of the general form: |
| 11079 // "LazyCompile:<type><function_name>", where the type is one of |
| 11080 // "*", "~" or "". |
| 11081 static const char kPreamble[] = "LazyCompile:"; |
| 11082 static size_t kPreambleLen = sizeof(kPreamble) - 1; |
| 11083 |
| 11084 if (event->name.len < sizeof(kPreamble) - 1 || |
| 11085 strncmp(kPreamble, event->name.str, kPreambleLen) != 0) { |
| 11086 return false; |
| 11087 } |
| 11088 |
| 11089 const char* tail = event->name.str + kPreambleLen; |
| 11090 size_t tail_len = event->name.len - kPreambleLen; |
| 11091 size_t expected_len = strlen(expected); |
| 11092 if (tail_len == expected_len + 1) { |
| 11093 if (*tail == '*' || *tail == '~') { |
| 11094 --tail_len; |
| 11095 ++tail; |
| 11096 } else { |
| 11097 return false; |
| 11098 } |
| 11099 } |
| 11100 |
| 11101 if (tail_len != expected_len) |
| 11102 return false; |
| 11103 |
| 11104 return strncmp(tail, expected, expected_len) == 0; |
| 11105 } |
| 11106 |
| 11107 |
| 11108 static void event_handler(const v8::JitCodeEvent* event) { |
| 11109 CHECK(event != NULL); |
| 11110 CHECK(code_map != NULL); |
| 11111 |
| 11112 switch(event->type) { |
| 11113 case v8::JitCodeEvent::CODE_ADDED: { |
| 11114 CHECK(event->code_start != NULL); |
| 11115 CHECK(event->code_len != 0); |
| 11116 CHECK(event->name.str != NULL); |
| 11117 i::HashMap::Entry* entry = |
| 11118 code_map->Lookup(event->code_start, |
| 11119 i::ComputePointerHash(event->code_start), |
| 11120 true); |
| 11121 entry->value = reinterpret_cast<void*>(event->code_len); |
| 11122 |
| 11123 if (FunctionNameIs("bar", event)) { |
| 11124 ++saw_bar; |
| 11125 } |
| 11126 } |
| 11127 break; |
| 11128 |
| 11129 case v8::JitCodeEvent::CODE_MOVED: { |
| 11130 ++move_events; |
| 11131 |
| 11132 uint32_t hash = i::ComputePointerHash(event->code_start); |
| 11133 // We should never see code move that we haven't seen before. |
| 11134 i::HashMap::Entry* entry = |
| 11135 code_map->Lookup(event->code_start, hash, false); |
| 11136 CHECK(entry != NULL); |
| 11137 CHECK_EQ(reinterpret_cast<void*>(event->code_len), entry->value); |
| 11138 code_map->Remove(event->code_start, hash); |
| 11139 |
| 11140 entry = code_map->Lookup(event->new_code_start, |
| 11141 i::ComputePointerHash(event->new_code_start), |
| 11142 true); |
| 11143 CHECK(entry != NULL); |
| 11144 entry->value = reinterpret_cast<void*>(event->code_len); |
| 11145 } |
| 11146 break; |
| 11147 |
| 11148 case v8::JitCodeEvent::CODE_REMOVED: |
| 11149 // Object/code removal events are currently not dispatched from the GC. |
| 11150 CHECK(false); |
| 11151 break; |
| 11152 default: |
| 11153 // Impossible event. |
| 11154 CHECK(false); |
| 11155 break; |
| 11156 } |
| 11157 } |
| 11158 |
| 11159 |
| 11160 // Implemented in the test-alloc.cc test suite. |
| 11161 void SimulateFullSpace(i::PagedSpace* space); |
| 11162 |
| 11163 |
| 11164 static bool MatchPointers(void* key1, void* key2) { |
| 11165 return key1 == key2; |
| 11166 } |
| 11167 |
| 11168 |
| 11169 TEST(SetJitCodeEventHandler) { |
| 11170 const char* script = |
| 11171 "function bar() {" |
| 11172 " var sum = 0;" |
| 11173 " for (i = 0; i < 100; ++i)" |
| 11174 " sum = foo(i);" |
| 11175 " return sum;" |
| 11176 "}" |
| 11177 "function foo(i) { return i * i; };" |
| 11178 "bar();"; |
| 11179 |
| 11180 // Run this test in a new isolate to make sure we don't |
| 11181 // have remnants of state from other code. |
| 11182 v8::Isolate* isolate = v8::Isolate::New(); |
| 11183 isolate->Enter(); |
| 11184 |
| 11185 { |
| 11186 i::HashMap code(MatchPointers); |
| 11187 code_map = &code; |
| 11188 |
| 11189 saw_bar = 0; |
| 11190 move_events = 0; |
| 11191 |
| 11192 i::FLAG_stress_compaction = true; |
| 11193 V8::SetJitCodeEventHandler(v8::kJitCodeEventDefault, event_handler); |
| 11194 |
| 11195 v8::HandleScope scope; |
| 11196 // Generate new code objects sparsely distributed across several |
| 11197 // different fragmented code-space pages. |
| 11198 const int kIterations = 10; |
| 11199 for (int i = 0; i < kIterations; ++i) { |
| 11200 LocalContext env; |
| 11201 |
| 11202 v8::Handle<v8::Script> compiled_script; |
| 11203 { |
| 11204 i::AlwaysAllocateScope always_allocate; |
| 11205 SimulateFullSpace(HEAP->code_space()); |
| 11206 compiled_script = v8_compile(script); |
| 11207 } |
| 11208 compiled_script->Run(); |
| 11209 |
| 11210 // Clear the compilation cache to get more wastage. |
| 11211 ISOLATE->compilation_cache()->Clear(); |
| 11212 } |
| 11213 |
| 11214 // Force code movement. |
| 11215 HEAP->CollectAllAvailableGarbage("TestSetJitCodeEventHandler"); |
| 11216 |
| 11217 CHECK_LE(kIterations, saw_bar); |
| 11218 CHECK_NE(0, move_events); |
| 11219 |
| 11220 code_map = NULL; |
| 11221 V8::SetJitCodeEventHandler(v8::kJitCodeEventDefault, NULL); |
| 11222 } |
| 11223 |
| 11224 isolate->Exit(); |
| 11225 isolate->Dispose(); |
| 11226 |
| 11227 // Do this in a new isolate. |
| 11228 isolate = v8::Isolate::New(); |
| 11229 isolate->Enter(); |
| 11230 |
| 11231 // Verify that we get callbacks for existing code objects when we |
| 11232 // request enumeration of existing code. |
| 11233 { |
| 11234 v8::HandleScope scope; |
| 11235 LocalContext env; |
| 11236 CompileRun(script); |
| 11237 |
| 11238 // Now get code through initial iteration. |
| 11239 i::HashMap code(MatchPointers); |
| 11240 code_map = &code; |
| 11241 |
| 11242 V8::SetJitCodeEventHandler(v8::kJitCodeEventEnumExisting, event_handler); |
| 11243 V8::SetJitCodeEventHandler(v8::kJitCodeEventDefault, NULL); |
| 11244 |
| 11245 code_map = NULL; |
| 11246 |
| 11247 // We expect that we got some events. Note that if we could get code removal |
| 11248 // notifications, we could compare two collections, one created by listening |
| 11249 // from the time of creation of an isolate, and the other by subscribing |
| 11250 // with EnumExisting. |
| 11251 CHECK_NE(0, code.occupancy()); |
| 11252 } |
| 11253 |
| 11254 isolate->Exit(); |
| 11255 isolate->Dispose(); |
| 11256 } |
| 11257 |
| 11258 |
11069 static int64_t cast(intptr_t x) { return static_cast<int64_t>(x); } | 11259 static int64_t cast(intptr_t x) { return static_cast<int64_t>(x); } |
11070 | 11260 |
11071 | 11261 |
11072 THREADED_TEST(ExternalAllocatedMemory) { | 11262 THREADED_TEST(ExternalAllocatedMemory) { |
11073 v8::HandleScope outer; | 11263 v8::HandleScope outer; |
11074 v8::Persistent<Context> env(Context::New()); | 11264 v8::Persistent<Context> env(Context::New()); |
11075 CHECK(!env.IsEmpty()); | 11265 CHECK(!env.IsEmpty()); |
11076 const intptr_t kSize = 1024*1024; | 11266 const intptr_t kSize = 1024*1024; |
11077 CHECK_EQ(cast(v8::V8::AdjustAmountOfExternalAllocatedMemory(kSize)), | 11267 CHECK_EQ(cast(v8::V8::AdjustAmountOfExternalAllocatedMemory(kSize)), |
11078 cast(kSize)); | 11268 cast(kSize)); |
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17247 | 17437 |
17248 i::Semaphore* sem_; | 17438 i::Semaphore* sem_; |
17249 volatile int sem_value_; | 17439 volatile int sem_value_; |
17250 }; | 17440 }; |
17251 | 17441 |
17252 | 17442 |
17253 THREADED_TEST(SemaphoreInterruption) { | 17443 THREADED_TEST(SemaphoreInterruption) { |
17254 ThreadInterruptTest().RunTest(); | 17444 ThreadInterruptTest().RunTest(); |
17255 } | 17445 } |
17256 #endif // WIN32 | 17446 #endif // WIN32 |
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