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