ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 1 | // Copyright 2006-2008 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 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 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 28 | #ifdef COMPRESS_STARTUP_DATA_BZ2 |
| 29 | #include <bzlib.h> |
| 30 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 31 | #include <signal.h> |
| 32 | #include <string> |
| 33 | #include <map> |
| 34 | |
| 35 | #include "v8.h" |
| 36 | |
| 37 | #include "bootstrapper.h" |
| 38 | #include "natives.h" |
| 39 | #include "platform.h" |
| 40 | #include "serialize.h" |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 41 | #include "list.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 42 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 43 | // use explicit namespace to avoid clashing with types in namespace v8 |
| 44 | namespace i = v8::internal; |
| 45 | using namespace v8; |
| 46 | |
| 47 | static const unsigned int kMaxCounters = 256; |
| 48 | |
| 49 | // A single counter in a counter collection. |
| 50 | class Counter { |
| 51 | public: |
| 52 | static const int kMaxNameSize = 64; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 53 | int32_t* Bind(const char* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 54 | int i; |
| 55 | for (i = 0; i < kMaxNameSize - 1 && name[i]; i++) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 56 | name_[i] = name[i]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 57 | } |
| 58 | name_[i] = '\0'; |
| 59 | return &counter_; |
| 60 | } |
| 61 | private: |
| 62 | int32_t counter_; |
| 63 | uint8_t name_[kMaxNameSize]; |
| 64 | }; |
| 65 | |
| 66 | |
| 67 | // A set of counters and associated information. An instance of this |
| 68 | // class is stored directly in the memory-mapped counters file if |
| 69 | // the --save-counters options is used |
| 70 | class CounterCollection { |
| 71 | public: |
| 72 | CounterCollection() { |
| 73 | magic_number_ = 0xDEADFACE; |
| 74 | max_counters_ = kMaxCounters; |
| 75 | max_name_size_ = Counter::kMaxNameSize; |
| 76 | counters_in_use_ = 0; |
| 77 | } |
| 78 | Counter* GetNextCounter() { |
| 79 | if (counters_in_use_ == kMaxCounters) return NULL; |
| 80 | return &counters_[counters_in_use_++]; |
| 81 | } |
| 82 | private: |
| 83 | uint32_t magic_number_; |
| 84 | uint32_t max_counters_; |
| 85 | uint32_t max_name_size_; |
| 86 | uint32_t counters_in_use_; |
| 87 | Counter counters_[kMaxCounters]; |
| 88 | }; |
| 89 | |
| 90 | |
| 91 | // We statically allocate a set of local counters to be used if we |
| 92 | // don't want to store the stats in a memory-mapped file |
| 93 | static CounterCollection local_counters; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 94 | |
| 95 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 96 | typedef std::map<std::string, int*> CounterMap; |
| 97 | typedef std::map<std::string, int*>::iterator CounterMapIterator; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 98 | static CounterMap counter_table_; |
| 99 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 100 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 101 | class Compressor { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 102 | public: |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 103 | virtual ~Compressor() {} |
| 104 | virtual bool Compress(i::Vector<char> input) = 0; |
| 105 | virtual i::Vector<char>* output() = 0; |
| 106 | }; |
| 107 | |
| 108 | |
| 109 | class PartialSnapshotSink : public i::SnapshotByteSink { |
| 110 | public: |
| 111 | PartialSnapshotSink() : data_(), raw_size_(-1) { } |
| 112 | virtual ~PartialSnapshotSink() { data_.Free(); } |
| 113 | virtual void Put(int byte, const char* description) { |
| 114 | data_.Add(byte); |
| 115 | } |
| 116 | virtual int Position() { return data_.length(); } |
| 117 | void Print(FILE* fp) { |
| 118 | int length = Position(); |
| 119 | for (int j = 0; j < length; j++) { |
| 120 | if ((j & 0x1f) == 0x1f) { |
| 121 | fprintf(fp, "\n"); |
| 122 | } |
| 123 | if (j != 0) { |
| 124 | fprintf(fp, ","); |
| 125 | } |
| 126 | fprintf(fp, "%d", at(j)); |
| 127 | } |
| 128 | } |
| 129 | char at(int i) { return data_[i]; } |
| 130 | bool Compress(Compressor* compressor) { |
| 131 | ASSERT_EQ(-1, raw_size_); |
| 132 | raw_size_ = data_.length(); |
| 133 | if (!compressor->Compress(data_.ToVector())) return false; |
| 134 | data_.Clear(); |
| 135 | data_.AddAll(*compressor->output()); |
| 136 | return true; |
| 137 | } |
| 138 | int raw_size() { return raw_size_; } |
| 139 | private: |
| 140 | i::List<char> data_; |
| 141 | int raw_size_; |
| 142 | }; |
| 143 | |
| 144 | |
| 145 | class CppByteSink : public PartialSnapshotSink { |
| 146 | public: |
| 147 | explicit CppByteSink(const char* snapshot_file) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 148 | fp_ = i::OS::FOpen(snapshot_file, "wb"); |
| 149 | if (fp_ == NULL) { |
| 150 | i::PrintF("Unable to write to snapshot file \"%s\"\n", snapshot_file); |
| 151 | exit(1); |
| 152 | } |
| 153 | fprintf(fp_, "// Autogenerated snapshot file. Do not edit.\n\n"); |
| 154 | fprintf(fp_, "#include \"v8.h\"\n"); |
| 155 | fprintf(fp_, "#include \"platform.h\"\n\n"); |
| 156 | fprintf(fp_, "#include \"snapshot.h\"\n\n"); |
| 157 | fprintf(fp_, "namespace v8 {\nnamespace internal {\n\n"); |
| 158 | fprintf(fp_, "const byte Snapshot::data_[] = {"); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 159 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 160 | |
| 161 | virtual ~CppByteSink() { |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 162 | fprintf(fp_, "const int Snapshot::size_ = %d;\n", Position()); |
| 163 | #ifdef COMPRESS_STARTUP_DATA_BZ2 |
| 164 | fprintf(fp_, "const byte* Snapshot::raw_data_ = NULL;\n"); |
| 165 | fprintf(fp_, |
| 166 | "const int Snapshot::raw_size_ = %d;\n\n", |
| 167 | raw_size()); |
| 168 | #else |
| 169 | fprintf(fp_, |
| 170 | "const byte* Snapshot::raw_data_ = Snapshot::data_;\n"); |
| 171 | fprintf(fp_, |
| 172 | "const int Snapshot::raw_size_ = Snapshot::size_;\n\n"); |
| 173 | #endif |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 174 | fprintf(fp_, "} } // namespace v8::internal\n"); |
| 175 | fclose(fp_); |
| 176 | } |
| 177 | |
| 178 | void WriteSpaceUsed( |
| 179 | int new_space_used, |
| 180 | int pointer_space_used, |
| 181 | int data_space_used, |
| 182 | int code_space_used, |
| 183 | int map_space_used, |
| 184 | int cell_space_used, |
| 185 | int large_space_used) { |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 186 | fprintf(fp_, "const int Snapshot::new_space_used_ = %d;\n", new_space_used); |
| 187 | fprintf(fp_, |
| 188 | "const int Snapshot::pointer_space_used_ = %d;\n", |
| 189 | pointer_space_used); |
| 190 | fprintf(fp_, |
| 191 | "const int Snapshot::data_space_used_ = %d;\n", |
| 192 | data_space_used); |
| 193 | fprintf(fp_, |
| 194 | "const int Snapshot::code_space_used_ = %d;\n", |
| 195 | code_space_used); |
| 196 | fprintf(fp_, "const int Snapshot::map_space_used_ = %d;\n", map_space_used); |
| 197 | fprintf(fp_, |
| 198 | "const int Snapshot::cell_space_used_ = %d;\n", |
| 199 | cell_space_used); |
| 200 | fprintf(fp_, |
| 201 | "const int Snapshot::large_space_used_ = %d;\n", |
| 202 | large_space_used); |
| 203 | } |
| 204 | |
| 205 | void WritePartialSnapshot() { |
| 206 | int length = partial_sink_.Position(); |
| 207 | fprintf(fp_, "};\n\n"); |
| 208 | fprintf(fp_, "const int Snapshot::context_size_ = %d;\n", length); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 209 | #ifdef COMPRESS_STARTUP_DATA_BZ2 |
| 210 | fprintf(fp_, |
| 211 | "const int Snapshot::context_raw_size_ = %d;\n", |
| 212 | partial_sink_.raw_size()); |
| 213 | #else |
| 214 | fprintf(fp_, |
| 215 | "const int Snapshot::context_raw_size_ = " |
| 216 | "Snapshot::context_size_;\n"); |
| 217 | #endif |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 218 | fprintf(fp_, "const byte Snapshot::context_data_[] = {\n"); |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 219 | partial_sink_.Print(fp_); |
| 220 | fprintf(fp_, "};\n\n"); |
| 221 | #ifdef COMPRESS_STARTUP_DATA_BZ2 |
| 222 | fprintf(fp_, "const byte* Snapshot::context_raw_data_ = NULL;\n"); |
| 223 | #else |
| 224 | fprintf(fp_, "const byte* Snapshot::context_raw_data_ =" |
| 225 | " Snapshot::context_data_;\n"); |
| 226 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 227 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 228 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 229 | void WriteSnapshot() { |
| 230 | Print(fp_); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 231 | } |
| 232 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 233 | PartialSnapshotSink* partial_sink() { return &partial_sink_; } |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 234 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 235 | private: |
| 236 | FILE* fp_; |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 237 | PartialSnapshotSink partial_sink_; |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 238 | }; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 239 | |
| 240 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 241 | #ifdef COMPRESS_STARTUP_DATA_BZ2 |
| 242 | class BZip2Compressor : public Compressor { |
| 243 | public: |
| 244 | BZip2Compressor() : output_(NULL) {} |
| 245 | virtual ~BZip2Compressor() { |
| 246 | delete output_; |
| 247 | } |
| 248 | virtual bool Compress(i::Vector<char> input) { |
| 249 | delete output_; |
| 250 | output_ = new i::ScopedVector<char>((input.length() * 101) / 100 + 1000); |
| 251 | unsigned int output_length_ = output_->length(); |
| 252 | int result = BZ2_bzBuffToBuffCompress(output_->start(), &output_length_, |
| 253 | input.start(), input.length(), |
| 254 | 9, 1, 0); |
| 255 | if (result == BZ_OK) { |
| 256 | output_->Truncate(output_length_); |
| 257 | return true; |
| 258 | } else { |
| 259 | fprintf(stderr, "bzlib error code: %d\n", result); |
| 260 | return false; |
| 261 | } |
| 262 | } |
| 263 | virtual i::Vector<char>* output() { return output_; } |
| 264 | |
| 265 | private: |
| 266 | i::ScopedVector<char>* output_; |
| 267 | }; |
| 268 | #endif |
| 269 | |
| 270 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 271 | int main(int argc, char** argv) { |
| 272 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 273 | // By default, log code create information in the snapshot. |
| 274 | i::FLAG_log_code = true; |
| 275 | #endif |
| 276 | // Print the usage if an error occurs when parsing the command line |
| 277 | // flags or if the help flag is set. |
| 278 | int result = i::FlagList::SetFlagsFromCommandLine(&argc, argv, true); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 279 | if (result > 0 || argc != 2 || i::FLAG_help) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 280 | ::printf("Usage: %s [flag] ... outfile\n", argv[0]); |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 281 | i::FlagList::PrintHelp(); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 282 | return !i::FLAG_help; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 283 | } |
kasperl@chromium.org | 061ef74 | 2009-02-27 12:16:20 +0000 | [diff] [blame] | 284 | i::Serializer::Enable(); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 285 | Persistent<Context> context = v8::Context::New(); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 286 | ASSERT(!context.IsEmpty()); |
kasper.lund | 7276f14 | 2008-07-30 08:49:36 +0000 | [diff] [blame] | 287 | // Make sure all builtin scripts are cached. |
| 288 | { HandleScope scope; |
| 289 | for (int i = 0; i < i::Natives::GetBuiltinsCount(); i++) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 290 | i::Isolate::Current()->bootstrapper()->NativesSourceLookup(i); |
kasper.lund | 7276f14 | 2008-07-30 08:49:36 +0000 | [diff] [blame] | 291 | } |
| 292 | } |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 293 | // If we don't do this then we end up with a stray root pointing at the |
| 294 | // context even after we have disposed of the context. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 295 | HEAP->CollectAllGarbage(true); |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 296 | i::Object* raw_context = *(v8::Utils::OpenHandle(*context)); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 297 | context.Dispose(); |
| 298 | CppByteSink sink(argv[1]); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 299 | // This results in a somewhat smaller snapshot, probably because it gets rid |
| 300 | // of some things that are cached between garbage collections. |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 301 | i::StartupSerializer ser(&sink); |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 302 | ser.SerializeStrongReferences(); |
| 303 | |
| 304 | i::PartialSerializer partial_ser(&ser, sink.partial_sink()); |
| 305 | partial_ser.Serialize(&raw_context); |
| 306 | |
| 307 | ser.SerializeWeakReferences(); |
| 308 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 309 | #ifdef COMPRESS_STARTUP_DATA_BZ2 |
| 310 | BZip2Compressor compressor; |
| 311 | if (!sink.Compress(&compressor)) |
| 312 | return 1; |
| 313 | if (!sink.partial_sink()->Compress(&compressor)) |
| 314 | return 1; |
| 315 | #endif |
| 316 | sink.WriteSnapshot(); |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 317 | sink.WritePartialSnapshot(); |
| 318 | |
| 319 | sink.WriteSpaceUsed( |
| 320 | partial_ser.CurrentAllocationAddress(i::NEW_SPACE), |
| 321 | partial_ser.CurrentAllocationAddress(i::OLD_POINTER_SPACE), |
| 322 | partial_ser.CurrentAllocationAddress(i::OLD_DATA_SPACE), |
| 323 | partial_ser.CurrentAllocationAddress(i::CODE_SPACE), |
| 324 | partial_ser.CurrentAllocationAddress(i::MAP_SPACE), |
| 325 | partial_ser.CurrentAllocationAddress(i::CELL_SPACE), |
| 326 | partial_ser.CurrentAllocationAddress(i::LO_SPACE)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 327 | return 0; |
| 328 | } |