yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1 | // Copyright 2012 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 "v8.h" |
| 29 | |
| 30 | #include "accessors.h" |
| 31 | #include "api.h" |
fschneider@chromium.org | fb144a0 | 2011-05-04 12:43:48 +0000 | [diff] [blame] | 32 | #include "bootstrapper.h" |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 33 | #include "deoptimizer.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 34 | #include "execution.h" |
| 35 | #include "global-handles.h" |
| 36 | #include "ic-inl.h" |
| 37 | #include "natives.h" |
| 38 | #include "platform.h" |
| 39 | #include "runtime.h" |
| 40 | #include "serialize.h" |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 41 | #include "snapshot.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 42 | #include "stub-cache.h" |
| 43 | #include "v8threads.h" |
| 44 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 45 | namespace v8 { |
| 46 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 47 | |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 48 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 49 | // ----------------------------------------------------------------------------- |
| 50 | // Coding of external references. |
| 51 | |
| 52 | // The encoding of an external reference. The type is in the high word. |
| 53 | // The id is in the low word. |
| 54 | static uint32_t EncodeExternal(TypeCode type, uint16_t id) { |
| 55 | return static_cast<uint32_t>(type) << 16 | id; |
| 56 | } |
| 57 | |
| 58 | |
| 59 | static int* GetInternalPointer(StatsCounter* counter) { |
| 60 | // All counters refer to dummy_counter, if deserializing happens without |
| 61 | // setting up counters. |
| 62 | static int dummy_counter = 0; |
| 63 | return counter->Enabled() ? counter->GetInternalPointer() : &dummy_counter; |
| 64 | } |
| 65 | |
| 66 | |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 67 | ExternalReferenceTable* ExternalReferenceTable::instance(Isolate* isolate) { |
| 68 | ExternalReferenceTable* external_reference_table = |
| 69 | isolate->external_reference_table(); |
| 70 | if (external_reference_table == NULL) { |
| 71 | external_reference_table = new ExternalReferenceTable(isolate); |
| 72 | isolate->set_external_reference_table(external_reference_table); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 73 | } |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 74 | return external_reference_table; |
| 75 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 76 | |
| 77 | |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 78 | void ExternalReferenceTable::AddFromId(TypeCode type, |
| 79 | uint16_t id, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 80 | const char* name, |
| 81 | Isolate* isolate) { |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 82 | Address address; |
| 83 | switch (type) { |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 84 | case C_BUILTIN: { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 85 | ExternalReference ref(static_cast<Builtins::CFunctionId>(id), isolate); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 86 | address = ref.address(); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 87 | break; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 88 | } |
| 89 | case BUILTIN: { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 90 | ExternalReference ref(static_cast<Builtins::Name>(id), isolate); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 91 | address = ref.address(); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 92 | break; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 93 | } |
| 94 | case RUNTIME_FUNCTION: { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 95 | ExternalReference ref(static_cast<Runtime::FunctionId>(id), isolate); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 96 | address = ref.address(); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 97 | break; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 98 | } |
| 99 | case IC_UTILITY: { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 100 | ExternalReference ref(IC_Utility(static_cast<IC::UtilityId>(id)), |
| 101 | isolate); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 102 | address = ref.address(); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 103 | break; |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 104 | } |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 105 | default: |
| 106 | UNREACHABLE(); |
| 107 | return; |
| 108 | } |
| 109 | Add(address, type, id, name); |
| 110 | } |
| 111 | |
| 112 | |
| 113 | void ExternalReferenceTable::Add(Address address, |
| 114 | TypeCode type, |
| 115 | uint16_t id, |
| 116 | const char* name) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 117 | ASSERT_NE(NULL, address); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 118 | ExternalReferenceEntry entry; |
| 119 | entry.address = address; |
| 120 | entry.code = EncodeExternal(type, id); |
| 121 | entry.name = name; |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 122 | ASSERT_NE(0, entry.code); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 123 | refs_.Add(entry); |
| 124 | if (id > max_id_[type]) max_id_[type] = id; |
| 125 | } |
| 126 | |
| 127 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 128 | void ExternalReferenceTable::PopulateTable(Isolate* isolate) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 129 | for (int type_code = 0; type_code < kTypeCodeCount; type_code++) { |
| 130 | max_id_[type_code] = 0; |
| 131 | } |
| 132 | |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 133 | // The following populates all of the different type of external references |
| 134 | // into the ExternalReferenceTable. |
| 135 | // |
| 136 | // NOTE: This function was originally 100k of code. It has since been |
| 137 | // rewritten to be mostly table driven, as the callback macro style tends to |
| 138 | // very easily cause code bloat. Please be careful in the future when adding |
| 139 | // new references. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 140 | |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 141 | struct RefTableEntry { |
| 142 | TypeCode type; |
| 143 | uint16_t id; |
| 144 | const char* name; |
| 145 | }; |
| 146 | |
| 147 | static const RefTableEntry ref_table[] = { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 148 | // Builtins |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 149 | #define DEF_ENTRY_C(name, ignored) \ |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 150 | { C_BUILTIN, \ |
| 151 | Builtins::c_##name, \ |
| 152 | "Builtins::" #name }, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 153 | |
| 154 | BUILTIN_LIST_C(DEF_ENTRY_C) |
| 155 | #undef DEF_ENTRY_C |
| 156 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 157 | #define DEF_ENTRY_C(name, ignored) \ |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 158 | { BUILTIN, \ |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 159 | Builtins::k##name, \ |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 160 | "Builtins::" #name }, |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 161 | #define DEF_ENTRY_A(name, kind, state, extra) DEF_ENTRY_C(name, ignored) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 162 | |
| 163 | BUILTIN_LIST_C(DEF_ENTRY_C) |
| 164 | BUILTIN_LIST_A(DEF_ENTRY_A) |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 165 | BUILTIN_LIST_DEBUG_A(DEF_ENTRY_A) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 166 | #undef DEF_ENTRY_C |
| 167 | #undef DEF_ENTRY_A |
| 168 | |
| 169 | // Runtime functions |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 170 | #define RUNTIME_ENTRY(name, nargs, ressize) \ |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 171 | { RUNTIME_FUNCTION, \ |
| 172 | Runtime::k##name, \ |
| 173 | "Runtime::" #name }, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 174 | |
| 175 | RUNTIME_FUNCTION_LIST(RUNTIME_ENTRY) |
| 176 | #undef RUNTIME_ENTRY |
| 177 | |
| 178 | // IC utilities |
| 179 | #define IC_ENTRY(name) \ |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 180 | { IC_UTILITY, \ |
| 181 | IC::k##name, \ |
| 182 | "IC::" #name }, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 183 | |
| 184 | IC_UTIL_LIST(IC_ENTRY) |
| 185 | #undef IC_ENTRY |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 186 | }; // end of ref_table[]. |
| 187 | |
| 188 | for (size_t i = 0; i < ARRAY_SIZE(ref_table); ++i) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 189 | AddFromId(ref_table[i].type, |
| 190 | ref_table[i].id, |
| 191 | ref_table[i].name, |
| 192 | isolate); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 193 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 194 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 195 | #ifdef ENABLE_DEBUGGER_SUPPORT |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 196 | // Debug addresses |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 197 | Add(Debug_Address(Debug::k_after_break_target_address).address(isolate), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 198 | DEBUG_ADDRESS, |
| 199 | Debug::k_after_break_target_address << kDebugIdShift, |
| 200 | "Debug::after_break_target_address()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 201 | Add(Debug_Address(Debug::k_debug_break_slot_address).address(isolate), |
vegorov@chromium.org | 2356e6f | 2010-06-09 09:38:56 +0000 | [diff] [blame] | 202 | DEBUG_ADDRESS, |
| 203 | Debug::k_debug_break_slot_address << kDebugIdShift, |
| 204 | "Debug::debug_break_slot_address()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 205 | Add(Debug_Address(Debug::k_debug_break_return_address).address(isolate), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 206 | DEBUG_ADDRESS, |
| 207 | Debug::k_debug_break_return_address << kDebugIdShift, |
| 208 | "Debug::debug_break_return_address()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 209 | Add(Debug_Address(Debug::k_restarter_frame_function_pointer).address(isolate), |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 210 | DEBUG_ADDRESS, |
| 211 | Debug::k_restarter_frame_function_pointer << kDebugIdShift, |
| 212 | "Debug::restarter_frame_function_pointer_address()"); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 213 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 214 | |
| 215 | // Stat counters |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 216 | struct StatsRefTableEntry { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 217 | StatsCounter* (Counters::*counter)(); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 218 | uint16_t id; |
| 219 | const char* name; |
| 220 | }; |
| 221 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 222 | const StatsRefTableEntry stats_ref_table[] = { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 223 | #define COUNTER_ENTRY(name, caption) \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 224 | { &Counters::name, \ |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 225 | Counters::k_##name, \ |
| 226 | "Counters::" #name }, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 227 | |
| 228 | STATS_COUNTER_LIST_1(COUNTER_ENTRY) |
| 229 | STATS_COUNTER_LIST_2(COUNTER_ENTRY) |
| 230 | #undef COUNTER_ENTRY |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 231 | }; // end of stats_ref_table[]. |
| 232 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 233 | Counters* counters = isolate->counters(); |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 234 | for (size_t i = 0; i < ARRAY_SIZE(stats_ref_table); ++i) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 235 | Add(reinterpret_cast<Address>(GetInternalPointer( |
| 236 | (counters->*(stats_ref_table[i].counter))())), |
iposva@chromium.org | 245aa85 | 2009-02-10 00:49:54 +0000 | [diff] [blame] | 237 | STATS_COUNTER, |
| 238 | stats_ref_table[i].id, |
| 239 | stats_ref_table[i].name); |
| 240 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 241 | |
| 242 | // Top addresses |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 243 | |
| 244 | const char* AddressNames[] = { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 245 | #define BUILD_NAME_LITERAL(CamelName, hacker_name) \ |
| 246 | "Isolate::" #hacker_name "_address", |
| 247 | FOR_EACH_ISOLATE_ADDRESS_NAME(BUILD_NAME_LITERAL) |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 248 | NULL |
yangguo@chromium.org | efdb9d7 | 2012-04-26 08:21:05 +0000 | [diff] [blame] | 249 | #undef BUILD_NAME_LITERAL |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 250 | }; |
| 251 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 252 | for (uint16_t i = 0; i < Isolate::kIsolateAddressCount; ++i) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 253 | Add(isolate->get_address_from_id((Isolate::AddressId)i), |
| 254 | TOP_ADDRESS, i, AddressNames[i]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 255 | } |
| 256 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 257 | // Accessors |
| 258 | #define ACCESSOR_DESCRIPTOR_DECLARATION(name) \ |
| 259 | Add((Address)&Accessors::name, \ |
| 260 | ACCESSOR, \ |
| 261 | Accessors::k##name, \ |
| 262 | "Accessors::" #name); |
| 263 | |
| 264 | ACCESSOR_DESCRIPTOR_LIST(ACCESSOR_DESCRIPTOR_DECLARATION) |
| 265 | #undef ACCESSOR_DESCRIPTOR_DECLARATION |
| 266 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 267 | StubCache* stub_cache = isolate->stub_cache(); |
| 268 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 269 | // Stub cache tables |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 270 | Add(stub_cache->key_reference(StubCache::kPrimary).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 271 | STUB_CACHE_TABLE, |
| 272 | 1, |
| 273 | "StubCache::primary_->key"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 274 | Add(stub_cache->value_reference(StubCache::kPrimary).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 275 | STUB_CACHE_TABLE, |
| 276 | 2, |
| 277 | "StubCache::primary_->value"); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 278 | Add(stub_cache->map_reference(StubCache::kPrimary).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 279 | STUB_CACHE_TABLE, |
| 280 | 3, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 281 | "StubCache::primary_->map"); |
| 282 | Add(stub_cache->key_reference(StubCache::kSecondary).address(), |
| 283 | STUB_CACHE_TABLE, |
| 284 | 4, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 285 | "StubCache::secondary_->key"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 286 | Add(stub_cache->value_reference(StubCache::kSecondary).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 287 | STUB_CACHE_TABLE, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 288 | 5, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 289 | "StubCache::secondary_->value"); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 290 | Add(stub_cache->map_reference(StubCache::kSecondary).address(), |
| 291 | STUB_CACHE_TABLE, |
| 292 | 6, |
| 293 | "StubCache::secondary_->map"); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 294 | |
| 295 | // Runtime entries |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 296 | Add(ExternalReference::perform_gc_function(isolate).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 297 | RUNTIME_ENTRY, |
| 298 | 1, |
| 299 | "Runtime::PerformGC"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 300 | Add(ExternalReference::fill_heap_number_with_random_function( |
| 301 | isolate).address(), |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 302 | RUNTIME_ENTRY, |
| 303 | 2, |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 304 | "V8::FillHeapNumberWithRandom"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 305 | Add(ExternalReference::random_uint32_function(isolate).address(), |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 306 | RUNTIME_ENTRY, |
| 307 | 3, |
| 308 | "V8::Random"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 309 | Add(ExternalReference::delete_handle_scope_extensions(isolate).address(), |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 310 | RUNTIME_ENTRY, |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 311 | 4, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 312 | "HandleScope::DeleteExtensions"); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 313 | Add(ExternalReference:: |
| 314 | incremental_marking_record_write_function(isolate).address(), |
| 315 | RUNTIME_ENTRY, |
| 316 | 5, |
| 317 | "IncrementalMarking::RecordWrite"); |
| 318 | Add(ExternalReference::store_buffer_overflow_function(isolate).address(), |
| 319 | RUNTIME_ENTRY, |
| 320 | 6, |
| 321 | "StoreBuffer::StoreBufferOverflow"); |
| 322 | Add(ExternalReference:: |
| 323 | incremental_evacuation_record_write_function(isolate).address(), |
| 324 | RUNTIME_ENTRY, |
| 325 | 7, |
| 326 | "IncrementalMarking::RecordWrite"); |
| 327 | |
| 328 | |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 329 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 330 | // Miscellaneous |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 331 | Add(ExternalReference::roots_array_start(isolate).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 332 | UNCLASSIFIED, |
| 333 | 3, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 334 | "Heap::roots_array_start()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 335 | Add(ExternalReference::address_of_stack_limit(isolate).address(), |
ager@chromium.org | ab99eea | 2009-08-25 07:05:41 +0000 | [diff] [blame] | 336 | UNCLASSIFIED, |
| 337 | 4, |
ager@chromium.org | 6f10e41 | 2009-02-13 10:11:16 +0000 | [diff] [blame] | 338 | "StackGuard::address_of_jslimit()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 339 | Add(ExternalReference::address_of_real_stack_limit(isolate).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 340 | UNCLASSIFIED, |
ager@chromium.org | ab99eea | 2009-08-25 07:05:41 +0000 | [diff] [blame] | 341 | 5, |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 342 | "StackGuard::address_of_real_jslimit()"); |
ricow@chromium.org | 4980dff | 2010-07-19 08:33:45 +0000 | [diff] [blame] | 343 | #ifndef V8_INTERPRETED_REGEXP |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 344 | Add(ExternalReference::address_of_regexp_stack_limit(isolate).address(), |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 345 | UNCLASSIFIED, |
| 346 | 6, |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 347 | "RegExpStack::limit_address()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 348 | Add(ExternalReference::address_of_regexp_stack_memory_address( |
| 349 | isolate).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 350 | UNCLASSIFIED, |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 351 | 7, |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 352 | "RegExpStack::memory_address()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 353 | Add(ExternalReference::address_of_regexp_stack_memory_size(isolate).address(), |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 354 | UNCLASSIFIED, |
| 355 | 8, |
| 356 | "RegExpStack::memory_size()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 357 | Add(ExternalReference::address_of_static_offsets_vector(isolate).address(), |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 358 | UNCLASSIFIED, |
| 359 | 9, |
| 360 | "OffsetsVector::static_offsets_vector"); |
ricow@chromium.org | 4980dff | 2010-07-19 08:33:45 +0000 | [diff] [blame] | 361 | #endif // V8_INTERPRETED_REGEXP |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 362 | Add(ExternalReference::new_space_start(isolate).address(), |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 363 | UNCLASSIFIED, |
| 364 | 10, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 365 | "Heap::NewSpaceStart()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 366 | Add(ExternalReference::new_space_mask(isolate).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 367 | UNCLASSIFIED, |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 368 | 11, |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 369 | "Heap::NewSpaceMask()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 370 | Add(ExternalReference::heap_always_allocate_scope_depth(isolate).address(), |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 371 | UNCLASSIFIED, |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 372 | 12, |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 373 | "Heap::always_allocate_scope_depth()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 374 | Add(ExternalReference::new_space_allocation_limit_address(isolate).address(), |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 375 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 376 | 14, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 377 | "Heap::NewSpaceAllocationLimitAddress()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 378 | Add(ExternalReference::new_space_allocation_top_address(isolate).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 379 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 380 | 15, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 381 | "Heap::NewSpaceAllocationTopAddress()"); |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 382 | #ifdef ENABLE_DEBUGGER_SUPPORT |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 383 | Add(ExternalReference::debug_break(isolate).address(), |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 384 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 385 | 16, |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 386 | "Debug::Break()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 387 | Add(ExternalReference::debug_step_in_fp_address(isolate).address(), |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 388 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 389 | 17, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 390 | "Debug::step_in_fp_addr()"); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 391 | #endif |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 392 | Add(ExternalReference::double_fp_operation(Token::ADD, isolate).address(), |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 393 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 394 | 18, |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 395 | "add_two_doubles"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 396 | Add(ExternalReference::double_fp_operation(Token::SUB, isolate).address(), |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 397 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 398 | 19, |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 399 | "sub_two_doubles"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 400 | Add(ExternalReference::double_fp_operation(Token::MUL, isolate).address(), |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 401 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 402 | 20, |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 403 | "mul_two_doubles"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 404 | Add(ExternalReference::double_fp_operation(Token::DIV, isolate).address(), |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 405 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 406 | 21, |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 407 | "div_two_doubles"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 408 | Add(ExternalReference::double_fp_operation(Token::MOD, isolate).address(), |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 409 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 410 | 22, |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 411 | "mod_two_doubles"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 412 | Add(ExternalReference::compare_doubles(isolate).address(), |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 413 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 414 | 23, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 415 | "compare_doubles"); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 416 | #ifndef V8_INTERPRETED_REGEXP |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 417 | Add(ExternalReference::re_case_insensitive_compare_uc16(isolate).address(), |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 418 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 419 | 24, |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 420 | "NativeRegExpMacroAssembler::CaseInsensitiveCompareUC16()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 421 | Add(ExternalReference::re_check_stack_guard_state(isolate).address(), |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 422 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 423 | 25, |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 424 | "RegExpMacroAssembler*::CheckStackGuardState()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 425 | Add(ExternalReference::re_grow_stack(isolate).address(), |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 426 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 427 | 26, |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 428 | "NativeRegExpMacroAssembler::GrowStack()"); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 429 | Add(ExternalReference::re_word_character_map().address(), |
| 430 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 431 | 27, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 432 | "NativeRegExpMacroAssembler::word_character_map"); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 433 | #endif // V8_INTERPRETED_REGEXP |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 434 | // Keyed lookup cache. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 435 | Add(ExternalReference::keyed_lookup_cache_keys(isolate).address(), |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 436 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 437 | 28, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 438 | "KeyedLookupCache::keys()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 439 | Add(ExternalReference::keyed_lookup_cache_field_offsets(isolate).address(), |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 440 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 441 | 29, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 442 | "KeyedLookupCache::field_offsets()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 443 | Add(ExternalReference::transcendental_cache_array_address(isolate).address(), |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 444 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 445 | 30, |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 446 | "TranscendentalCache::caches()"); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 447 | Add(ExternalReference::handle_scope_next_address(isolate).address(), |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 448 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 449 | 31, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 450 | "HandleScope::next"); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 451 | Add(ExternalReference::handle_scope_limit_address(isolate).address(), |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 452 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 453 | 32, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 454 | "HandleScope::limit"); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 455 | Add(ExternalReference::handle_scope_level_address(isolate).address(), |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 456 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 457 | 33, |
lrn@chromium.org | 303ada7 | 2010-10-27 09:33:13 +0000 | [diff] [blame] | 458 | "HandleScope::level"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 459 | Add(ExternalReference::new_deoptimizer_function(isolate).address(), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 460 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 461 | 34, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 462 | "Deoptimizer::New()"); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 463 | Add(ExternalReference::compute_output_frames_function(isolate).address(), |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 464 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 465 | 35, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 466 | "Deoptimizer::ComputeOutputFrames()"); |
| 467 | Add(ExternalReference::address_of_min_int().address(), |
| 468 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 469 | 36, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 470 | "LDoubleConstant::min_int"); |
| 471 | Add(ExternalReference::address_of_one_half().address(), |
| 472 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 473 | 37, |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 474 | "LDoubleConstant::one_half"); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 475 | Add(ExternalReference::isolate_address(isolate).address(), |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 476 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 477 | 38, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 478 | "isolate"); |
| 479 | Add(ExternalReference::address_of_minus_zero().address(), |
| 480 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 481 | 39, |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 482 | "LDoubleConstant::minus_zero"); |
| 483 | Add(ExternalReference::address_of_negative_infinity().address(), |
| 484 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 485 | 40, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 486 | "LDoubleConstant::negative_infinity"); |
| 487 | Add(ExternalReference::power_double_double_function(isolate).address(), |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 488 | UNCLASSIFIED, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 489 | 41, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 490 | "power_double_double_function"); |
| 491 | Add(ExternalReference::power_double_int_function(isolate).address(), |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 492 | UNCLASSIFIED, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 493 | 42, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 494 | "power_double_int_function"); |
| 495 | Add(ExternalReference::store_buffer_top(isolate).address(), |
| 496 | UNCLASSIFIED, |
| 497 | 43, |
| 498 | "store_buffer_top"); |
| 499 | Add(ExternalReference::address_of_canonical_non_hole_nan().address(), |
| 500 | UNCLASSIFIED, |
| 501 | 44, |
| 502 | "canonical_nan"); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 503 | Add(ExternalReference::address_of_the_hole_nan().address(), |
| 504 | UNCLASSIFIED, |
| 505 | 45, |
| 506 | "the_hole_nan"); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 507 | Add(ExternalReference::get_date_field_function(isolate).address(), |
| 508 | UNCLASSIFIED, |
| 509 | 46, |
| 510 | "JSDate::GetField"); |
| 511 | Add(ExternalReference::date_cache_stamp(isolate).address(), |
| 512 | UNCLASSIFIED, |
| 513 | 47, |
| 514 | "date_cache_stamp"); |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 515 | Add(ExternalReference::address_of_pending_message_obj(isolate).address(), |
| 516 | UNCLASSIFIED, |
| 517 | 48, |
| 518 | "address_of_pending_message_obj"); |
| 519 | Add(ExternalReference::address_of_has_pending_message(isolate).address(), |
| 520 | UNCLASSIFIED, |
| 521 | 49, |
| 522 | "address_of_has_pending_message"); |
| 523 | Add(ExternalReference::address_of_pending_message_script(isolate).address(), |
| 524 | UNCLASSIFIED, |
| 525 | 50, |
| 526 | "pending_message_script"); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 527 | Add(ExternalReference::get_make_code_young_function(isolate).address(), |
| 528 | UNCLASSIFIED, |
| 529 | 51, |
| 530 | "Code::MakeCodeYoung"); |
yangguo@chromium.org | 003650e | 2013-01-24 16:31:08 +0000 | [diff] [blame] | 531 | Add(ExternalReference::cpu_features().address(), |
| 532 | UNCLASSIFIED, |
| 533 | 52, |
| 534 | "cpu_features"); |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 535 | Add(ExternalReference::new_space_allocation_top_address(isolate).address(), |
| 536 | UNCLASSIFIED, |
| 537 | 53, |
| 538 | "Heap::NewSpaceAllocationTopAddress"); |
| 539 | Add(ExternalReference::new_space_allocation_limit_address(isolate).address(), |
| 540 | UNCLASSIFIED, |
| 541 | 54, |
| 542 | "Heap::NewSpaceAllocationLimitAddress"); |
| 543 | Add(ExternalReference(Runtime::kAllocateInNewSpace, isolate).address(), |
| 544 | UNCLASSIFIED, |
| 545 | 55, |
| 546 | "Runtime::AllocateInNewSpace"); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 547 | Add(ExternalReference::old_pointer_space_allocation_top_address( |
| 548 | isolate).address(), |
| 549 | UNCLASSIFIED, |
| 550 | 56, |
| 551 | "Heap::OldPointerSpaceAllocationTopAddress"); |
| 552 | Add(ExternalReference::old_pointer_space_allocation_limit_address( |
| 553 | isolate).address(), |
| 554 | UNCLASSIFIED, |
| 555 | 57, |
| 556 | "Heap::OldPointerSpaceAllocationLimitAddress"); |
| 557 | Add(ExternalReference(Runtime::kAllocateInOldPointerSpace, isolate).address(), |
| 558 | UNCLASSIFIED, |
| 559 | 58, |
| 560 | "Runtime::AllocateInOldPointerSpace"); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 561 | Add(ExternalReference::new_space_high_promotion_mode_active_address(isolate). |
| 562 | address(), |
| 563 | UNCLASSIFIED, |
| 564 | 59, |
| 565 | "Heap::NewSpaceAllocationLimitAddress"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 566 | |
| 567 | // Add a small set of deopt entry addresses to encoder without generating the |
| 568 | // deopt table code, which isn't possible at deserialization time. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 569 | HandleScope scope(isolate); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 570 | for (int entry = 0; entry < kDeoptTableSerializeEntryCount; ++entry) { |
| 571 | Address address = Deoptimizer::GetDeoptimizationEntry( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 572 | isolate, |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 573 | entry, |
| 574 | Deoptimizer::LAZY, |
| 575 | Deoptimizer::CALCULATE_ENTRY_ADDRESS); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 576 | Add(address, LAZY_DEOPTIMIZATION, 60 + entry, "lazy_deopt"); |
yangguo@chromium.org | a6bbcc8 | 2012-12-21 12:35:02 +0000 | [diff] [blame] | 577 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 578 | } |
| 579 | |
| 580 | |
| 581 | ExternalReferenceEncoder::ExternalReferenceEncoder() |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 582 | : encodings_(Match), |
| 583 | isolate_(Isolate::Current()) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 584 | ExternalReferenceTable* external_references = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 585 | ExternalReferenceTable::instance(isolate_); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 586 | for (int i = 0; i < external_references->size(); ++i) { |
| 587 | Put(external_references->address(i), i); |
| 588 | } |
| 589 | } |
| 590 | |
| 591 | |
| 592 | uint32_t ExternalReferenceEncoder::Encode(Address key) const { |
| 593 | int index = IndexOf(key); |
whesse@chromium.org | e90029b | 2010-08-02 11:52:17 +0000 | [diff] [blame] | 594 | ASSERT(key == NULL || index >= 0); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 595 | return index >=0 ? |
| 596 | ExternalReferenceTable::instance(isolate_)->code(index) : 0; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 597 | } |
| 598 | |
| 599 | |
| 600 | const char* ExternalReferenceEncoder::NameOfAddress(Address key) const { |
| 601 | int index = IndexOf(key); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 602 | return index >= 0 ? |
| 603 | ExternalReferenceTable::instance(isolate_)->name(index) : NULL; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 604 | } |
| 605 | |
| 606 | |
| 607 | int ExternalReferenceEncoder::IndexOf(Address key) const { |
| 608 | if (key == NULL) return -1; |
| 609 | HashMap::Entry* entry = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 610 | const_cast<HashMap&>(encodings_).Lookup(key, Hash(key), false); |
ager@chromium.org | 9085a01 | 2009-05-11 19:22:57 +0000 | [diff] [blame] | 611 | return entry == NULL |
| 612 | ? -1 |
| 613 | : static_cast<int>(reinterpret_cast<intptr_t>(entry->value)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 614 | } |
| 615 | |
| 616 | |
| 617 | void ExternalReferenceEncoder::Put(Address key, int index) { |
| 618 | HashMap::Entry* entry = encodings_.Lookup(key, Hash(key), true); |
whesse@chromium.org | cec079d | 2010-03-22 14:44:04 +0000 | [diff] [blame] | 619 | entry->value = reinterpret_cast<void*>(index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 620 | } |
| 621 | |
| 622 | |
| 623 | ExternalReferenceDecoder::ExternalReferenceDecoder() |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 624 | : encodings_(NewArray<Address*>(kTypeCodeCount)), |
| 625 | isolate_(Isolate::Current()) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 626 | ExternalReferenceTable* external_references = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 627 | ExternalReferenceTable::instance(isolate_); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 628 | for (int type = kFirstTypeCode; type < kTypeCodeCount; ++type) { |
| 629 | int max = external_references->max_id(type) + 1; |
| 630 | encodings_[type] = NewArray<Address>(max + 1); |
| 631 | } |
| 632 | for (int i = 0; i < external_references->size(); ++i) { |
| 633 | Put(external_references->code(i), external_references->address(i)); |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | |
| 638 | ExternalReferenceDecoder::~ExternalReferenceDecoder() { |
| 639 | for (int type = kFirstTypeCode; type < kTypeCodeCount; ++type) { |
| 640 | DeleteArray(encodings_[type]); |
| 641 | } |
| 642 | DeleteArray(encodings_); |
| 643 | } |
| 644 | |
| 645 | |
kasperl@chromium.org | 061ef74 | 2009-02-27 12:16:20 +0000 | [diff] [blame] | 646 | bool Serializer::serialization_enabled_ = false; |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 647 | bool Serializer::too_late_to_enable_now_ = false; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 648 | |
| 649 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 650 | Deserializer::Deserializer(SnapshotByteSource* source) |
| 651 | : isolate_(NULL), |
| 652 | source_(source), |
| 653 | external_reference_decoder_(NULL) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 654 | for (int i = 0; i < LAST_SPACE + 1; i++) { |
| 655 | reservations_[i] = kUninitializedReservation; |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 656 | } |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 657 | } |
| 658 | |
| 659 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 660 | void Deserializer::Deserialize() { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 661 | isolate_ = Isolate::Current(); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 662 | ASSERT(isolate_ != NULL); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 663 | isolate_->heap()->ReserveSpace(reservations_, &high_water_[0]); |
| 664 | // No active threads. |
| 665 | ASSERT_EQ(NULL, isolate_->thread_manager()->FirstThreadStateInUse()); |
| 666 | // No active handles. |
| 667 | ASSERT(isolate_->handle_scope_implementer()->blocks()->is_empty()); |
| 668 | ASSERT_EQ(NULL, external_reference_decoder_); |
| 669 | external_reference_decoder_ = new ExternalReferenceDecoder(); |
| 670 | isolate_->heap()->IterateStrongRoots(this, VISIT_ONLY_STRONG); |
| 671 | isolate_->heap()->RepairFreeListsAfterBoot(); |
| 672 | isolate_->heap()->IterateWeakRoots(this, VISIT_ALL); |
whesse@chromium.org | 4a5224e | 2010-10-20 12:37:07 +0000 | [diff] [blame] | 673 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 674 | isolate_->heap()->set_native_contexts_list( |
| 675 | isolate_->heap()->undefined_value()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 676 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 677 | // Update data pointers to the external strings containing natives sources. |
| 678 | for (int i = 0; i < Natives::GetBuiltinsCount(); i++) { |
| 679 | Object* source = isolate_->heap()->natives_source_cache()->get(i); |
| 680 | if (!source->IsUndefined()) { |
| 681 | ExternalAsciiString::cast(source)->update_data_cache(); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 682 | } |
| 683 | } |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 684 | |
| 685 | // Issue code events for newly deserialized code objects. |
| 686 | LOG_CODE_EVENT(isolate_, LogCodeObjects()); |
| 687 | LOG_CODE_EVENT(isolate_, LogCompiledFunctions()); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 688 | } |
| 689 | |
| 690 | |
| 691 | void Deserializer::DeserializePartial(Object** root) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 692 | isolate_ = Isolate::Current(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 693 | for (int i = NEW_SPACE; i < kNumberOfSpaces; i++) { |
| 694 | ASSERT(reservations_[i] != kUninitializedReservation); |
| 695 | } |
| 696 | isolate_->heap()->ReserveSpace(reservations_, &high_water_[0]); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 697 | if (external_reference_decoder_ == NULL) { |
| 698 | external_reference_decoder_ = new ExternalReferenceDecoder(); |
| 699 | } |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 700 | |
| 701 | // Keep track of the code space start and end pointers in case new |
| 702 | // code objects were unserialized |
| 703 | OldSpace* code_space = isolate_->heap()->code_space(); |
| 704 | Address start_address = code_space->top(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 705 | VisitPointer(root); |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 706 | |
| 707 | // There's no code deserialized here. If this assert fires |
| 708 | // then that's changed and logging should be added to notify |
| 709 | // the profiler et al of the new code. |
| 710 | CHECK_EQ(start_address, code_space->top()); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 711 | } |
| 712 | |
| 713 | |
| 714 | Deserializer::~Deserializer() { |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 715 | ASSERT(source_->AtEOF()); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 716 | if (external_reference_decoder_) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 717 | delete external_reference_decoder_; |
| 718 | external_reference_decoder_ = NULL; |
| 719 | } |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 720 | } |
| 721 | |
| 722 | |
| 723 | // This is called on the roots. It is the driver of the deserialization |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 724 | // process. It is also called on the body of each function. |
| 725 | void Deserializer::VisitPointers(Object** start, Object** end) { |
| 726 | // The space must be new space. Any other space would cause ReadChunk to try |
| 727 | // to update the remembered using NULL as the address. |
| 728 | ReadChunk(start, end, NEW_SPACE, NULL); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 729 | } |
| 730 | |
| 731 | |
| 732 | // This routine writes the new object into the pointer provided and then |
| 733 | // returns true if the new object was in young space and false otherwise. |
| 734 | // The reason for this strange interface is that otherwise the object is |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 735 | // written very late, which means the FreeSpace map is not set up by the |
| 736 | // time we need to use it to mark the space at the end of a page free. |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 737 | void Deserializer::ReadObject(int space_number, |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 738 | Object** write_back) { |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 739 | int size = source_->GetInt() << kObjectAlignmentBits; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 740 | Address address = Allocate(space_number, size); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 741 | *write_back = HeapObject::FromAddress(address); |
| 742 | Object** current = reinterpret_cast<Object**>(address); |
| 743 | Object** limit = current + (size >> kPointerSizeLog2); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 744 | if (FLAG_log_snapshot_positions) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 745 | LOG(isolate_, SnapshotPositionEvent(address, source_->position())); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 746 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 747 | ReadChunk(current, limit, space_number, address); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 748 | #ifdef DEBUG |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 749 | bool is_codespace = (space_number == CODE_SPACE); |
ricow@chromium.org | badaffc | 2011-03-17 12:15:27 +0000 | [diff] [blame] | 750 | ASSERT(HeapObject::FromAddress(address)->IsCode() == is_codespace); |
| 751 | #endif |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 752 | } |
| 753 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 754 | void Deserializer::ReadChunk(Object** current, |
| 755 | Object** limit, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 756 | int source_space, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 757 | Address current_object_address) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 758 | Isolate* const isolate = isolate_; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 759 | // Write barrier support costs around 1% in startup time. In fact there |
| 760 | // are no new space objects in current boot snapshots, so it's not needed, |
| 761 | // but that may change. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 762 | bool write_barrier_needed = (current_object_address != NULL && |
| 763 | source_space != NEW_SPACE && |
| 764 | source_space != CELL_SPACE && |
| 765 | source_space != CODE_SPACE && |
| 766 | source_space != OLD_DATA_SPACE); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 767 | while (current < limit) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 768 | int data = source_->Get(); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 769 | switch (data) { |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 770 | #define CASE_STATEMENT(where, how, within, space_number) \ |
| 771 | case where + how + within + space_number: \ |
| 772 | ASSERT((where & ~kPointedToMask) == 0); \ |
| 773 | ASSERT((how & ~kHowToCodeMask) == 0); \ |
| 774 | ASSERT((within & ~kWhereToPointMask) == 0); \ |
| 775 | ASSERT((space_number & ~kSpaceMask) == 0); |
| 776 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 777 | #define CASE_BODY(where, how, within, space_number_if_any) \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 778 | { \ |
| 779 | bool emit_write_barrier = false; \ |
| 780 | bool current_was_incremented = false; \ |
| 781 | int space_number = space_number_if_any == kAnyOldSpace ? \ |
| 782 | (data & kSpaceMask) : space_number_if_any; \ |
| 783 | if (where == kNewObject && how == kPlain && within == kStartOfObject) {\ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 784 | ReadObject(space_number, current); \ |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 785 | emit_write_barrier = (space_number == NEW_SPACE); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 786 | } else { \ |
| 787 | Object* new_object = NULL; /* May not be a real Object pointer. */ \ |
| 788 | if (where == kNewObject) { \ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 789 | ReadObject(space_number, &new_object); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 790 | } else if (where == kRootArray) { \ |
| 791 | int root_id = source_->GetInt(); \ |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 792 | new_object = isolate->heap()->roots_array_start()[root_id]; \ |
| 793 | emit_write_barrier = isolate->heap()->InNewSpace(new_object); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 794 | } else if (where == kPartialSnapshotCache) { \ |
| 795 | int cache_index = source_->GetInt(); \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 796 | new_object = isolate->serialize_partial_snapshot_cache() \ |
| 797 | [cache_index]; \ |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 798 | emit_write_barrier = isolate->heap()->InNewSpace(new_object); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 799 | } else if (where == kExternalReference) { \ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 800 | int skip = source_->GetInt(); \ |
| 801 | current = reinterpret_cast<Object**>(reinterpret_cast<Address>( \ |
| 802 | current) + skip); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 803 | int reference_id = source_->GetInt(); \ |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 804 | Address address = external_reference_decoder_-> \ |
| 805 | Decode(reference_id); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 806 | new_object = reinterpret_cast<Object*>(address); \ |
| 807 | } else if (where == kBackref) { \ |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 808 | emit_write_barrier = (space_number == NEW_SPACE); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 809 | new_object = GetAddressFromEnd(data & kSpaceMask); \ |
| 810 | } else { \ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 811 | ASSERT(where == kBackrefWithSkip); \ |
| 812 | int skip = source_->GetInt(); \ |
| 813 | current = reinterpret_cast<Object**>( \ |
| 814 | reinterpret_cast<Address>(current) + skip); \ |
| 815 | emit_write_barrier = (space_number == NEW_SPACE); \ |
| 816 | new_object = GetAddressFromEnd(data & kSpaceMask); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 817 | } \ |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 818 | if (within == kInnerPointer) { \ |
| 819 | if (space_number != CODE_SPACE || new_object->IsCode()) { \ |
| 820 | Code* new_code_object = reinterpret_cast<Code*>(new_object); \ |
| 821 | new_object = reinterpret_cast<Object*>( \ |
| 822 | new_code_object->instruction_start()); \ |
| 823 | } else { \ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 824 | ASSERT(space_number == CODE_SPACE); \ |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 825 | JSGlobalPropertyCell* cell = \ |
| 826 | JSGlobalPropertyCell::cast(new_object); \ |
| 827 | new_object = reinterpret_cast<Object*>( \ |
| 828 | cell->ValueAddress()); \ |
| 829 | } \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 830 | } \ |
| 831 | if (how == kFromCode) { \ |
| 832 | Address location_of_branch_data = \ |
| 833 | reinterpret_cast<Address>(current); \ |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 834 | Assembler::deserialization_set_special_target_at( \ |
| 835 | location_of_branch_data, \ |
| 836 | reinterpret_cast<Address>(new_object)); \ |
| 837 | location_of_branch_data += Assembler::kSpecialTargetSize; \ |
| 838 | current = reinterpret_cast<Object**>(location_of_branch_data); \ |
| 839 | current_was_incremented = true; \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 840 | } else { \ |
| 841 | *current = new_object; \ |
| 842 | } \ |
| 843 | } \ |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 844 | if (emit_write_barrier && write_barrier_needed) { \ |
| 845 | Address current_address = reinterpret_cast<Address>(current); \ |
| 846 | isolate->heap()->RecordWrite( \ |
| 847 | current_object_address, \ |
| 848 | static_cast<int>(current_address - current_object_address)); \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 849 | } \ |
| 850 | if (!current_was_incremented) { \ |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 851 | current++; \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 852 | } \ |
| 853 | break; \ |
| 854 | } \ |
| 855 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 856 | // This generates a case and a body for the new space (which has to do extra |
| 857 | // write barrier handling) and handles the other spaces with 8 fall-through |
| 858 | // cases and one body. |
| 859 | #define ALL_SPACES(where, how, within) \ |
| 860 | CASE_STATEMENT(where, how, within, NEW_SPACE) \ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 861 | CASE_BODY(where, how, within, NEW_SPACE) \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 862 | CASE_STATEMENT(where, how, within, OLD_DATA_SPACE) \ |
| 863 | CASE_STATEMENT(where, how, within, OLD_POINTER_SPACE) \ |
| 864 | CASE_STATEMENT(where, how, within, CODE_SPACE) \ |
| 865 | CASE_STATEMENT(where, how, within, CELL_SPACE) \ |
| 866 | CASE_STATEMENT(where, how, within, MAP_SPACE) \ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 867 | CASE_BODY(where, how, within, kAnyOldSpace) |
erik.corry@gmail.com | 145eff5 | 2010-08-23 11:36:18 +0000 | [diff] [blame] | 868 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 869 | #define FOUR_CASES(byte_code) \ |
| 870 | case byte_code: \ |
| 871 | case byte_code + 1: \ |
| 872 | case byte_code + 2: \ |
| 873 | case byte_code + 3: |
| 874 | |
| 875 | #define SIXTEEN_CASES(byte_code) \ |
| 876 | FOUR_CASES(byte_code) \ |
| 877 | FOUR_CASES(byte_code + 4) \ |
| 878 | FOUR_CASES(byte_code + 8) \ |
| 879 | FOUR_CASES(byte_code + 12) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 880 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 881 | #define COMMON_RAW_LENGTHS(f) \ |
| 882 | f(1) \ |
| 883 | f(2) \ |
| 884 | f(3) \ |
| 885 | f(4) \ |
| 886 | f(5) \ |
| 887 | f(6) \ |
| 888 | f(7) \ |
| 889 | f(8) \ |
| 890 | f(9) \ |
| 891 | f(10) \ |
| 892 | f(11) \ |
| 893 | f(12) \ |
| 894 | f(13) \ |
| 895 | f(14) \ |
| 896 | f(15) \ |
| 897 | f(16) \ |
| 898 | f(17) \ |
| 899 | f(18) \ |
| 900 | f(19) \ |
| 901 | f(20) \ |
| 902 | f(21) \ |
| 903 | f(22) \ |
| 904 | f(23) \ |
| 905 | f(24) \ |
| 906 | f(25) \ |
| 907 | f(26) \ |
| 908 | f(27) \ |
| 909 | f(28) \ |
| 910 | f(29) \ |
| 911 | f(30) \ |
| 912 | f(31) |
| 913 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 914 | // We generate 15 cases and bodies that process special tags that combine |
| 915 | // the raw data tag and the length into one byte. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 916 | #define RAW_CASE(index) \ |
| 917 | case kRawData + index: { \ |
| 918 | byte* raw_data_out = reinterpret_cast<byte*>(current); \ |
| 919 | source_->CopyRaw(raw_data_out, index * kPointerSize); \ |
| 920 | current = \ |
| 921 | reinterpret_cast<Object**>(raw_data_out + index * kPointerSize); \ |
| 922 | break; \ |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 923 | } |
| 924 | COMMON_RAW_LENGTHS(RAW_CASE) |
| 925 | #undef RAW_CASE |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 926 | |
| 927 | // Deserialize a chunk of raw data that doesn't have one of the popular |
| 928 | // lengths. |
| 929 | case kRawData: { |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 930 | int size = source_->GetInt(); |
| 931 | byte* raw_data_out = reinterpret_cast<byte*>(current); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 932 | source_->CopyRaw(raw_data_out, size); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 933 | break; |
| 934 | } |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 935 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 936 | SIXTEEN_CASES(kRootArrayConstants + kNoSkipDistance) |
| 937 | SIXTEEN_CASES(kRootArrayConstants + kNoSkipDistance + 16) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 938 | int root_id = RootArrayConstantFromByteCode(data); |
| 939 | Object* object = isolate->heap()->roots_array_start()[root_id]; |
| 940 | ASSERT(!isolate->heap()->InNewSpace(object)); |
| 941 | *current++ = object; |
| 942 | break; |
| 943 | } |
| 944 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 945 | SIXTEEN_CASES(kRootArrayConstants + kHasSkipDistance) |
| 946 | SIXTEEN_CASES(kRootArrayConstants + kHasSkipDistance + 16) { |
| 947 | int root_id = RootArrayConstantFromByteCode(data); |
| 948 | int skip = source_->GetInt(); |
| 949 | current = reinterpret_cast<Object**>( |
| 950 | reinterpret_cast<intptr_t>(current) + skip); |
| 951 | Object* object = isolate->heap()->roots_array_start()[root_id]; |
| 952 | ASSERT(!isolate->heap()->InNewSpace(object)); |
| 953 | *current++ = object; |
| 954 | break; |
| 955 | } |
| 956 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 957 | case kRepeat: { |
| 958 | int repeats = source_->GetInt(); |
| 959 | Object* object = current[-1]; |
| 960 | ASSERT(!isolate->heap()->InNewSpace(object)); |
| 961 | for (int i = 0; i < repeats; i++) current[i] = object; |
| 962 | current += repeats; |
| 963 | break; |
| 964 | } |
| 965 | |
| 966 | STATIC_ASSERT(kRootArrayNumberOfConstantEncodings == |
| 967 | Heap::kOldSpaceRoots); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 968 | STATIC_ASSERT(kMaxRepeats == 13); |
| 969 | case kConstantRepeat: |
| 970 | FOUR_CASES(kConstantRepeat + 1) |
| 971 | FOUR_CASES(kConstantRepeat + 5) |
| 972 | FOUR_CASES(kConstantRepeat + 9) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 973 | int repeats = RepeatsForCode(data); |
| 974 | Object* object = current[-1]; |
| 975 | ASSERT(!isolate->heap()->InNewSpace(object)); |
| 976 | for (int i = 0; i < repeats; i++) current[i] = object; |
| 977 | current += repeats; |
| 978 | break; |
| 979 | } |
| 980 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 981 | // Deserialize a new object and write a pointer to it to the current |
| 982 | // object. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 983 | ALL_SPACES(kNewObject, kPlain, kStartOfObject) |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 984 | // Support for direct instruction pointers in functions. It's an inner |
| 985 | // pointer because it points at the entry point, not at the start of the |
| 986 | // code object. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 987 | CASE_STATEMENT(kNewObject, kPlain, kInnerPointer, CODE_SPACE) |
| 988 | CASE_BODY(kNewObject, kPlain, kInnerPointer, CODE_SPACE) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 989 | // Deserialize a new code object and write a pointer to its first |
| 990 | // instruction to the current code object. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 991 | ALL_SPACES(kNewObject, kFromCode, kInnerPointer) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 992 | // Find a recently deserialized object using its offset from the current |
| 993 | // allocation point and write a pointer to it to the current object. |
| 994 | ALL_SPACES(kBackref, kPlain, kStartOfObject) |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 995 | ALL_SPACES(kBackrefWithSkip, kPlain, kStartOfObject) |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 996 | #if V8_TARGET_ARCH_MIPS |
| 997 | // Deserialize a new object from pointer found in code and write |
| 998 | // a pointer to it to the current object. Required only for MIPS, and |
| 999 | // omitted on the other architectures because it is fully unrolled and |
| 1000 | // would cause bloat. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1001 | ALL_SPACES(kNewObject, kFromCode, kStartOfObject) |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 1002 | // Find a recently deserialized code object using its offset from the |
| 1003 | // current allocation point and write a pointer to it to the current |
| 1004 | // object. Required only for MIPS. |
| 1005 | ALL_SPACES(kBackref, kFromCode, kStartOfObject) |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1006 | ALL_SPACES(kBackrefWithSkip, kFromCode, kStartOfObject) |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 1007 | #endif |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1008 | // Find a recently deserialized code object using its offset from the |
| 1009 | // current allocation point and write a pointer to its first instruction |
erik.corry@gmail.com | 145eff5 | 2010-08-23 11:36:18 +0000 | [diff] [blame] | 1010 | // to the current code object or the instruction pointer in a function |
| 1011 | // object. |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 1012 | ALL_SPACES(kBackref, kFromCode, kInnerPointer) |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1013 | ALL_SPACES(kBackrefWithSkip, kFromCode, kInnerPointer) |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 1014 | ALL_SPACES(kBackref, kPlain, kInnerPointer) |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1015 | ALL_SPACES(kBackrefWithSkip, kPlain, kInnerPointer) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1016 | // Find an object in the roots array and write a pointer to it to the |
| 1017 | // current object. |
| 1018 | CASE_STATEMENT(kRootArray, kPlain, kStartOfObject, 0) |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1019 | CASE_BODY(kRootArray, kPlain, kStartOfObject, 0) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1020 | // Find an object in the partial snapshots cache and write a pointer to it |
| 1021 | // to the current object. |
| 1022 | CASE_STATEMENT(kPartialSnapshotCache, kPlain, kStartOfObject, 0) |
| 1023 | CASE_BODY(kPartialSnapshotCache, |
| 1024 | kPlain, |
| 1025 | kStartOfObject, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1026 | 0) |
erik.corry@gmail.com | 145eff5 | 2010-08-23 11:36:18 +0000 | [diff] [blame] | 1027 | // Find an code entry in the partial snapshots cache and |
| 1028 | // write a pointer to it to the current object. |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 1029 | CASE_STATEMENT(kPartialSnapshotCache, kPlain, kInnerPointer, 0) |
erik.corry@gmail.com | 145eff5 | 2010-08-23 11:36:18 +0000 | [diff] [blame] | 1030 | CASE_BODY(kPartialSnapshotCache, |
| 1031 | kPlain, |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 1032 | kInnerPointer, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1033 | 0) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1034 | // Find an external reference and write a pointer to it to the current |
| 1035 | // object. |
| 1036 | CASE_STATEMENT(kExternalReference, kPlain, kStartOfObject, 0) |
| 1037 | CASE_BODY(kExternalReference, |
| 1038 | kPlain, |
| 1039 | kStartOfObject, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1040 | 0) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1041 | // Find an external reference and write a pointer to it in the current |
| 1042 | // code object. |
| 1043 | CASE_STATEMENT(kExternalReference, kFromCode, kStartOfObject, 0) |
| 1044 | CASE_BODY(kExternalReference, |
| 1045 | kFromCode, |
| 1046 | kStartOfObject, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1047 | 0) |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1048 | |
| 1049 | #undef CASE_STATEMENT |
| 1050 | #undef CASE_BODY |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1051 | #undef ALL_SPACES |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1052 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1053 | case kSkip: { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1054 | int size = source_->GetInt(); |
| 1055 | current = reinterpret_cast<Object**>( |
| 1056 | reinterpret_cast<intptr_t>(current) + size); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1057 | break; |
| 1058 | } |
| 1059 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1060 | case kNativesStringResource: { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1061 | int index = source_->Get(); |
jkummerow@chromium.org | e297f59 | 2011-06-08 10:05:15 +0000 | [diff] [blame] | 1062 | Vector<const char> source_vector = Natives::GetRawScriptSource(index); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1063 | NativesExternalStringResource* resource = |
jkummerow@chromium.org | e297f59 | 2011-06-08 10:05:15 +0000 | [diff] [blame] | 1064 | new NativesExternalStringResource(isolate->bootstrapper(), |
| 1065 | source_vector.start(), |
| 1066 | source_vector.length()); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1067 | *current++ = reinterpret_cast<Object*>(resource); |
| 1068 | break; |
| 1069 | } |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1070 | |
| 1071 | case kSynchronize: { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1072 | // If we get here then that indicates that you have a mismatch between |
| 1073 | // the number of GC roots when serializing and deserializing. |
| 1074 | UNREACHABLE(); |
| 1075 | } |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1076 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1077 | default: |
| 1078 | UNREACHABLE(); |
| 1079 | } |
| 1080 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1081 | ASSERT_EQ(limit, current); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1082 | } |
| 1083 | |
| 1084 | |
| 1085 | void SnapshotByteSink::PutInt(uintptr_t integer, const char* description) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1086 | ASSERT(integer < 1 << 22); |
| 1087 | integer <<= 2; |
| 1088 | int bytes = 1; |
| 1089 | if (integer > 0xff) bytes = 2; |
| 1090 | if (integer > 0xffff) bytes = 3; |
| 1091 | integer |= bytes; |
| 1092 | Put(static_cast<int>(integer & 0xff), "IntPart1"); |
| 1093 | if (bytes > 1) Put(static_cast<int>((integer >> 8) & 0xff), "IntPart2"); |
| 1094 | if (bytes > 2) Put(static_cast<int>((integer >> 16) & 0xff), "IntPart3"); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1095 | } |
| 1096 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1097 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1098 | Serializer::Serializer(SnapshotByteSink* sink) |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1099 | : sink_(sink), |
| 1100 | current_root_index_(0), |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1101 | external_reference_encoder_(new ExternalReferenceEncoder), |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1102 | root_index_wave_front_(0) { |
yangguo@chromium.org | ab30bb8 | 2012-02-24 14:41:46 +0000 | [diff] [blame] | 1103 | isolate_ = Isolate::Current(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1104 | // The serializer is meant to be used only to generate initial heap images |
| 1105 | // from a context in which there is only one isolate. |
yangguo@chromium.org | ab30bb8 | 2012-02-24 14:41:46 +0000 | [diff] [blame] | 1106 | ASSERT(isolate_->IsDefaultIsolate()); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1107 | for (int i = 0; i <= LAST_SPACE; i++) { |
| 1108 | fullness_[i] = 0; |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1113 | Serializer::~Serializer() { |
| 1114 | delete external_reference_encoder_; |
| 1115 | } |
| 1116 | |
| 1117 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1118 | void StartupSerializer::SerializeStrongReferences() { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1119 | Isolate* isolate = Isolate::Current(); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1120 | // No active threads. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1121 | CHECK_EQ(NULL, Isolate::Current()->thread_manager()->FirstThreadStateInUse()); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1122 | // No active or weak handles. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1123 | CHECK(isolate->handle_scope_implementer()->blocks()->is_empty()); |
| 1124 | CHECK_EQ(0, isolate->global_handles()->NumberOfWeakHandles()); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1125 | // We don't support serializing installed extensions. |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 1126 | CHECK(!isolate->has_installed_extensions()); |
| 1127 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1128 | HEAP->IterateStrongRoots(this, VISIT_ONLY_STRONG); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1129 | } |
| 1130 | |
| 1131 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1132 | void PartialSerializer::Serialize(Object** object) { |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 1133 | this->VisitPointer(object); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1134 | Pad(); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 1135 | } |
| 1136 | |
| 1137 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1138 | void Serializer::VisitPointers(Object** start, Object** end) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1139 | Isolate* isolate = Isolate::Current(); |
| 1140 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1141 | for (Object** current = start; current < end; current++) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1142 | if (start == isolate->heap()->roots_array_start()) { |
| 1143 | root_index_wave_front_ = |
| 1144 | Max(root_index_wave_front_, static_cast<intptr_t>(current - start)); |
| 1145 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1146 | if (reinterpret_cast<Address>(current) == |
| 1147 | isolate->heap()->store_buffer()->TopAddress()) { |
| 1148 | sink_->Put(kSkip, "Skip"); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1149 | sink_->PutInt(kPointerSize, "SkipOneWord"); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1150 | } else if ((*current)->IsSmi()) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1151 | sink_->Put(kRawData + 1, "Smi"); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1152 | for (int i = 0; i < kPointerSize; i++) { |
| 1153 | sink_->Put(reinterpret_cast<byte*>(current)[i], "Byte"); |
| 1154 | } |
| 1155 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1156 | SerializeObject(*current, kPlain, kStartOfObject, 0); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1157 | } |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1158 | } |
| 1159 | } |
| 1160 | |
| 1161 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1162 | // This ensures that the partial snapshot cache keeps things alive during GC and |
| 1163 | // tracks their movement. When it is called during serialization of the startup |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1164 | // snapshot nothing happens. When the partial (context) snapshot is created, |
| 1165 | // this array is populated with the pointers that the partial snapshot will |
| 1166 | // need. As that happens we emit serialized objects to the startup snapshot |
| 1167 | // that correspond to the elements of this cache array. On deserialization we |
| 1168 | // therefore need to visit the cache array. This fills it up with pointers to |
| 1169 | // deserialized objects. |
whesse@chromium.org | cec079d | 2010-03-22 14:44:04 +0000 | [diff] [blame] | 1170 | void SerializerDeserializer::Iterate(ObjectVisitor* visitor) { |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1171 | if (Serializer::enabled()) return; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1172 | Isolate* isolate = Isolate::Current(); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1173 | for (int i = 0; ; i++) { |
| 1174 | if (isolate->serialize_partial_snapshot_cache_length() <= i) { |
| 1175 | // Extend the array ready to get a value from the visitor when |
| 1176 | // deserializing. |
| 1177 | isolate->PushToPartialSnapshotCache(Smi::FromInt(0)); |
| 1178 | } |
| 1179 | Object** cache = isolate->serialize_partial_snapshot_cache(); |
| 1180 | visitor->VisitPointers(&cache[i], &cache[i + 1]); |
| 1181 | // Sentinel is the undefined object, which is a root so it will not normally |
| 1182 | // be found in the cache. |
| 1183 | if (cache[i] == isolate->heap()->undefined_value()) { |
| 1184 | break; |
| 1185 | } |
| 1186 | } |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | |
| 1190 | int PartialSerializer::PartialSnapshotCacheIndex(HeapObject* heap_object) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1191 | Isolate* isolate = Isolate::Current(); |
| 1192 | |
| 1193 | for (int i = 0; |
| 1194 | i < isolate->serialize_partial_snapshot_cache_length(); |
| 1195 | i++) { |
| 1196 | Object* entry = isolate->serialize_partial_snapshot_cache()[i]; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1197 | if (entry == heap_object) return i; |
| 1198 | } |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1199 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1200 | // We didn't find the object in the cache. So we add it to the cache and |
| 1201 | // then visit the pointer so that it becomes part of the startup snapshot |
| 1202 | // and we can refer to it from the partial snapshot. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1203 | int length = isolate->serialize_partial_snapshot_cache_length(); |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1204 | isolate->PushToPartialSnapshotCache(heap_object); |
| 1205 | startup_serializer_->VisitPointer(reinterpret_cast<Object**>(&heap_object)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1206 | // We don't recurse from the startup snapshot generator into the partial |
| 1207 | // snapshot generator. |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1208 | ASSERT(length == isolate->serialize_partial_snapshot_cache_length() - 1); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1209 | return length; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1210 | } |
| 1211 | |
| 1212 | |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 1213 | int Serializer::RootIndex(HeapObject* heap_object, HowToCode from) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1214 | Heap* heap = HEAP; |
| 1215 | if (heap->InNewSpace(heap_object)) return kInvalidRootIndex; |
| 1216 | for (int i = 0; i < root_index_wave_front_; i++) { |
| 1217 | Object* root = heap->roots_array_start()[i]; |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 1218 | if (!root->IsSmi() && root == heap_object) { |
| 1219 | #if V8_TARGET_ARCH_MIPS |
| 1220 | if (from == kFromCode) { |
| 1221 | // In order to avoid code bloat in the deserializer we don't have |
| 1222 | // support for the encoding that specifies a particular root should |
| 1223 | // be written into the lui/ori instructions on MIPS. Therefore we |
| 1224 | // should not generate such serialization data for MIPS. |
| 1225 | return kInvalidRootIndex; |
| 1226 | } |
| 1227 | #endif |
| 1228 | return i; |
| 1229 | } |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 1230 | } |
| 1231 | return kInvalidRootIndex; |
| 1232 | } |
| 1233 | |
| 1234 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1235 | // Encode the location of an already deserialized object in order to write its |
| 1236 | // location into a later object. We can encode the location as an offset from |
| 1237 | // the start of the deserialized objects or as an offset backwards from the |
| 1238 | // current allocation pointer. |
| 1239 | void Serializer::SerializeReferenceToPreviousObject( |
| 1240 | int space, |
| 1241 | int address, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1242 | HowToCode how_to_code, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1243 | WhereToPoint where_to_point, |
| 1244 | int skip) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1245 | int offset = CurrentAllocationAddress(space) - address; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1246 | // Shift out the bits that are always 0. |
| 1247 | offset >>= kObjectAlignmentBits; |
| 1248 | if (skip == 0) { |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1249 | sink_->Put(kBackref + how_to_code + where_to_point + space, "BackRefSer"); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1250 | } else { |
| 1251 | sink_->Put(kBackrefWithSkip + how_to_code + where_to_point + space, |
| 1252 | "BackRefSerWithSkip"); |
| 1253 | sink_->PutInt(skip, "BackRefSkipDistance"); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1254 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1255 | sink_->PutInt(offset, "offset"); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1256 | } |
| 1257 | |
| 1258 | |
| 1259 | void StartupSerializer::SerializeObject( |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1260 | Object* o, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1261 | HowToCode how_to_code, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1262 | WhereToPoint where_to_point, |
| 1263 | int skip) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1264 | CHECK(o->IsHeapObject()); |
| 1265 | HeapObject* heap_object = HeapObject::cast(o); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1266 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1267 | int root_index; |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 1268 | if ((root_index = RootIndex(heap_object, how_to_code)) != kInvalidRootIndex) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1269 | PutRoot(root_index, heap_object, how_to_code, where_to_point, skip); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1270 | return; |
| 1271 | } |
| 1272 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1273 | if (address_mapper_.IsMapped(heap_object)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1274 | int space = SpaceOfObject(heap_object); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1275 | int address = address_mapper_.MappedTo(heap_object); |
| 1276 | SerializeReferenceToPreviousObject(space, |
| 1277 | address, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1278 | how_to_code, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1279 | where_to_point, |
| 1280 | skip); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1281 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1282 | if (skip != 0) { |
| 1283 | sink_->Put(kSkip, "FlushPendingSkip"); |
| 1284 | sink_->PutInt(skip, "SkipDistance"); |
| 1285 | } |
| 1286 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1287 | // Object has not yet been serialized. Serialize it here. |
| 1288 | ObjectSerializer object_serializer(this, |
| 1289 | heap_object, |
| 1290 | sink_, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1291 | how_to_code, |
| 1292 | where_to_point); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1293 | object_serializer.Serialize(); |
| 1294 | } |
| 1295 | } |
| 1296 | |
| 1297 | |
| 1298 | void StartupSerializer::SerializeWeakReferences() { |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 1299 | // This phase comes right after the partial serialization (of the snapshot). |
| 1300 | // After we have done the partial serialization the partial snapshot cache |
| 1301 | // will contain some references needed to decode the partial snapshot. We |
| 1302 | // add one entry with 'undefined' which is the sentinel that the deserializer |
| 1303 | // uses to know it is done deserializing the array. |
| 1304 | Isolate* isolate = Isolate::Current(); |
| 1305 | Object* undefined = isolate->heap()->undefined_value(); |
| 1306 | VisitPointer(&undefined); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1307 | HEAP->IterateWeakRoots(this, VISIT_ALL); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1308 | Pad(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1309 | } |
| 1310 | |
| 1311 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1312 | void Serializer::PutRoot(int root_index, |
| 1313 | HeapObject* object, |
| 1314 | SerializerDeserializer::HowToCode how_to_code, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1315 | SerializerDeserializer::WhereToPoint where_to_point, |
| 1316 | int skip) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1317 | if (how_to_code == kPlain && |
| 1318 | where_to_point == kStartOfObject && |
| 1319 | root_index < kRootArrayNumberOfConstantEncodings && |
| 1320 | !HEAP->InNewSpace(object)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1321 | if (skip == 0) { |
| 1322 | sink_->Put(kRootArrayConstants + kNoSkipDistance + root_index, |
| 1323 | "RootConstant"); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1324 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1325 | sink_->Put(kRootArrayConstants + kHasSkipDistance + root_index, |
| 1326 | "RootConstant"); |
| 1327 | sink_->PutInt(skip, "SkipInPutRoot"); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1328 | } |
| 1329 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1330 | if (skip != 0) { |
| 1331 | sink_->Put(kSkip, "SkipFromPutRoot"); |
| 1332 | sink_->PutInt(skip, "SkipFromPutRootDistance"); |
| 1333 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1334 | sink_->Put(kRootArray + how_to_code + where_to_point, "RootSerialization"); |
| 1335 | sink_->PutInt(root_index, "root_index"); |
| 1336 | } |
| 1337 | } |
| 1338 | |
| 1339 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1340 | void PartialSerializer::SerializeObject( |
| 1341 | Object* o, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1342 | HowToCode how_to_code, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1343 | WhereToPoint where_to_point, |
| 1344 | int skip) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1345 | CHECK(o->IsHeapObject()); |
| 1346 | HeapObject* heap_object = HeapObject::cast(o); |
| 1347 | |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 1348 | if (heap_object->IsMap()) { |
| 1349 | // The code-caches link to context-specific code objects, which |
| 1350 | // the startup and context serializes cannot currently handle. |
| 1351 | ASSERT(Map::cast(heap_object)->code_cache() == |
danno@chromium.org | 72204d5 | 2012-10-31 10:02:10 +0000 | [diff] [blame] | 1352 | heap_object->GetHeap()->empty_fixed_array()); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 1353 | } |
| 1354 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1355 | int root_index; |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 1356 | if ((root_index = RootIndex(heap_object, how_to_code)) != kInvalidRootIndex) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1357 | PutRoot(root_index, heap_object, how_to_code, where_to_point, skip); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1358 | return; |
| 1359 | } |
| 1360 | |
| 1361 | if (ShouldBeInThePartialSnapshotCache(heap_object)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1362 | if (skip != 0) { |
| 1363 | sink_->Put(kSkip, "SkipFromSerializeObject"); |
| 1364 | sink_->PutInt(skip, "SkipDistanceFromSerializeObject"); |
| 1365 | } |
| 1366 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1367 | int cache_index = PartialSnapshotCacheIndex(heap_object); |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1368 | sink_->Put(kPartialSnapshotCache + how_to_code + where_to_point, |
| 1369 | "PartialSnapshotCache"); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1370 | sink_->PutInt(cache_index, "partial_snapshot_cache_index"); |
| 1371 | return; |
| 1372 | } |
| 1373 | |
| 1374 | // Pointers from the partial snapshot to the objects in the startup snapshot |
| 1375 | // should go through the root array or through the partial snapshot cache. |
| 1376 | // If this is not the case you may have to add something to the root array. |
| 1377 | ASSERT(!startup_serializer_->address_mapper()->IsMapped(heap_object)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1378 | // All the internalized strings that the partial snapshot needs should be |
| 1379 | // either in the root table or in the partial snapshot cache. |
| 1380 | ASSERT(!heap_object->IsInternalizedString()); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1381 | |
| 1382 | if (address_mapper_.IsMapped(heap_object)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1383 | int space = SpaceOfObject(heap_object); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1384 | int address = address_mapper_.MappedTo(heap_object); |
| 1385 | SerializeReferenceToPreviousObject(space, |
| 1386 | address, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1387 | how_to_code, |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1388 | where_to_point, |
| 1389 | skip); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1390 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1391 | if (skip != 0) { |
| 1392 | sink_->Put(kSkip, "SkipFromSerializeObject"); |
| 1393 | sink_->PutInt(skip, "SkipDistanceFromSerializeObject"); |
| 1394 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1395 | // Object has not yet been serialized. Serialize it here. |
| 1396 | ObjectSerializer serializer(this, |
| 1397 | heap_object, |
| 1398 | sink_, |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1399 | how_to_code, |
| 1400 | where_to_point); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1401 | serializer.Serialize(); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1402 | } |
| 1403 | } |
| 1404 | |
| 1405 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1406 | void Serializer::ObjectSerializer::Serialize() { |
| 1407 | int space = Serializer::SpaceOfObject(object_); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1408 | int size = object_->Size(); |
| 1409 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1410 | sink_->Put(kNewObject + reference_representation_ + space, |
| 1411 | "ObjectSerialization"); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1412 | sink_->PutInt(size >> kObjectAlignmentBits, "Size in words"); |
| 1413 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1414 | LOG(i::Isolate::Current(), |
| 1415 | SnapshotPositionEvent(object_->address(), sink_->Position())); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1416 | |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1417 | // Mark this object as already serialized. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1418 | int offset = serializer_->Allocate(space, size); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1419 | serializer_->address_mapper()->AddMapping(object_, offset); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1420 | |
| 1421 | // Serialize the map (first word of the object). |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1422 | serializer_->SerializeObject(object_->map(), kPlain, kStartOfObject, 0); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1423 | |
| 1424 | // Serialize the rest of the object. |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1425 | CHECK_EQ(0, bytes_processed_so_far_); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1426 | bytes_processed_so_far_ = kPointerSize; |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 1427 | object_->IterateBody(object_->map()->instance_type(), size, this); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1428 | OutputRawData(object_->address() + size); |
| 1429 | } |
| 1430 | |
| 1431 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1432 | void Serializer::ObjectSerializer::VisitPointers(Object** start, |
| 1433 | Object** end) { |
| 1434 | Object** current = start; |
| 1435 | while (current < end) { |
| 1436 | while (current < end && (*current)->IsSmi()) current++; |
| 1437 | if (current < end) OutputRawData(reinterpret_cast<Address>(current)); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1438 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1439 | while (current < end && !(*current)->IsSmi()) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1440 | HeapObject* current_contents = HeapObject::cast(*current); |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 1441 | int root_index = serializer_->RootIndex(current_contents, kPlain); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1442 | // Repeats are not subject to the write barrier so there are only some |
| 1443 | // objects that can be used in a repeat encoding. These are the early |
| 1444 | // ones in the root array that are never in new space. |
| 1445 | if (current != start && |
| 1446 | root_index != kInvalidRootIndex && |
| 1447 | root_index < kRootArrayNumberOfConstantEncodings && |
| 1448 | current_contents == current[-1]) { |
| 1449 | ASSERT(!HEAP->InNewSpace(current_contents)); |
| 1450 | int repeat_count = 1; |
| 1451 | while (current < end - 1 && current[repeat_count] == current_contents) { |
| 1452 | repeat_count++; |
| 1453 | } |
| 1454 | current += repeat_count; |
| 1455 | bytes_processed_so_far_ += repeat_count * kPointerSize; |
| 1456 | if (repeat_count > kMaxRepeats) { |
| 1457 | sink_->Put(kRepeat, "SerializeRepeats"); |
| 1458 | sink_->PutInt(repeat_count, "SerializeRepeats"); |
| 1459 | } else { |
| 1460 | sink_->Put(CodeForRepeats(repeat_count), "SerializeRepeats"); |
| 1461 | } |
| 1462 | } else { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1463 | serializer_->SerializeObject( |
| 1464 | current_contents, kPlain, kStartOfObject, 0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1465 | bytes_processed_so_far_ += kPointerSize; |
| 1466 | current++; |
| 1467 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1468 | } |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1469 | } |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1470 | } |
| 1471 | |
| 1472 | |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 1473 | void Serializer::ObjectSerializer::VisitEmbeddedPointer(RelocInfo* rinfo) { |
| 1474 | Object** current = rinfo->target_object_address(); |
| 1475 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1476 | int skip = OutputRawData(rinfo->target_address_address(), |
| 1477 | kCanReturnSkipInsteadOfSkipping); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 1478 | HowToCode representation = rinfo->IsCodedSpecially() ? kFromCode : kPlain; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1479 | serializer_->SerializeObject(*current, representation, kStartOfObject, skip); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 1480 | bytes_processed_so_far_ += rinfo->target_address_size(); |
| 1481 | } |
| 1482 | |
| 1483 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1484 | void Serializer::ObjectSerializer::VisitExternalReferences(Address* start, |
| 1485 | Address* end) { |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1486 | Address references_start = reinterpret_cast<Address>(start); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1487 | int skip = OutputRawData(references_start, kCanReturnSkipInsteadOfSkipping); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1488 | |
| 1489 | for (Address* current = start; current < end; current++) { |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1490 | sink_->Put(kExternalReference + kPlain + kStartOfObject, "ExternalRef"); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1491 | sink_->PutInt(skip, "SkipB4ExternalRef"); |
| 1492 | skip = 0; |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1493 | int reference_id = serializer_->EncodeExternalReference(*current); |
| 1494 | sink_->PutInt(reference_id, "reference id"); |
| 1495 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1496 | bytes_processed_so_far_ += static_cast<int>((end - start) * kPointerSize); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1497 | } |
| 1498 | |
| 1499 | |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 1500 | void Serializer::ObjectSerializer::VisitExternalReference(RelocInfo* rinfo) { |
| 1501 | Address references_start = rinfo->target_address_address(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1502 | int skip = OutputRawData(references_start, kCanReturnSkipInsteadOfSkipping); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 1503 | |
| 1504 | Address* current = rinfo->target_reference_address(); |
| 1505 | int representation = rinfo->IsCodedSpecially() ? |
| 1506 | kFromCode + kStartOfObject : kPlain + kStartOfObject; |
| 1507 | sink_->Put(kExternalReference + representation, "ExternalRef"); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1508 | sink_->PutInt(skip, "SkipB4ExternalRef"); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 1509 | int reference_id = serializer_->EncodeExternalReference(*current); |
| 1510 | sink_->PutInt(reference_id, "reference id"); |
| 1511 | bytes_processed_so_far_ += rinfo->target_address_size(); |
| 1512 | } |
| 1513 | |
| 1514 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1515 | void Serializer::ObjectSerializer::VisitRuntimeEntry(RelocInfo* rinfo) { |
| 1516 | Address target_start = rinfo->target_address_address(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1517 | int skip = OutputRawData(target_start, kCanReturnSkipInsteadOfSkipping); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1518 | Address target = rinfo->target_address(); |
| 1519 | uint32_t encoding = serializer_->EncodeExternalReference(target); |
| 1520 | CHECK(target == NULL ? encoding == 0 : encoding != 0); |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1521 | int representation; |
| 1522 | // Can't use a ternary operator because of gcc. |
| 1523 | if (rinfo->IsCodedSpecially()) { |
| 1524 | representation = kStartOfObject + kFromCode; |
| 1525 | } else { |
| 1526 | representation = kStartOfObject + kPlain; |
| 1527 | } |
| 1528 | sink_->Put(kExternalReference + representation, "ExternalReference"); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1529 | sink_->PutInt(skip, "SkipB4ExternalRef"); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1530 | sink_->PutInt(encoding, "reference id"); |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1531 | bytes_processed_so_far_ += rinfo->target_address_size(); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1532 | } |
| 1533 | |
| 1534 | |
| 1535 | void Serializer::ObjectSerializer::VisitCodeTarget(RelocInfo* rinfo) { |
| 1536 | CHECK(RelocInfo::IsCodeTarget(rinfo->rmode())); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1537 | Address target_start = rinfo->target_address_address(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1538 | int skip = OutputRawData(target_start, kCanReturnSkipInsteadOfSkipping); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1539 | Code* target = Code::GetCodeFromTargetAddress(rinfo->target_address()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1540 | serializer_->SerializeObject(target, kFromCode, kInnerPointer, skip); |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1541 | bytes_processed_so_far_ += rinfo->target_address_size(); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1542 | } |
| 1543 | |
| 1544 | |
erik.corry@gmail.com | 145eff5 | 2010-08-23 11:36:18 +0000 | [diff] [blame] | 1545 | void Serializer::ObjectSerializer::VisitCodeEntry(Address entry_address) { |
| 1546 | Code* target = Code::cast(Code::GetObjectFromEntryAddress(entry_address)); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1547 | int skip = OutputRawData(entry_address, kCanReturnSkipInsteadOfSkipping); |
| 1548 | serializer_->SerializeObject(target, kPlain, kInnerPointer, skip); |
erik.corry@gmail.com | 145eff5 | 2010-08-23 11:36:18 +0000 | [diff] [blame] | 1549 | bytes_processed_so_far_ += kPointerSize; |
| 1550 | } |
| 1551 | |
| 1552 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1553 | void Serializer::ObjectSerializer::VisitGlobalPropertyCell(RelocInfo* rinfo) { |
jkummerow@chromium.org | 000f7fb | 2012-08-01 11:14:42 +0000 | [diff] [blame] | 1554 | ASSERT(rinfo->rmode() == RelocInfo::GLOBAL_PROPERTY_CELL); |
| 1555 | JSGlobalPropertyCell* cell = |
| 1556 | JSGlobalPropertyCell::cast(rinfo->target_cell()); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1557 | int skip = OutputRawData(rinfo->pc(), kCanReturnSkipInsteadOfSkipping); |
| 1558 | serializer_->SerializeObject(cell, kPlain, kInnerPointer, skip); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1559 | } |
| 1560 | |
| 1561 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1562 | void Serializer::ObjectSerializer::VisitExternalAsciiString( |
| 1563 | v8::String::ExternalAsciiStringResource** resource_pointer) { |
| 1564 | Address references_start = reinterpret_cast<Address>(resource_pointer); |
| 1565 | OutputRawData(references_start); |
| 1566 | for (int i = 0; i < Natives::GetBuiltinsCount(); i++) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1567 | Object* source = HEAP->natives_source_cache()->get(i); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1568 | if (!source->IsUndefined()) { |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 1569 | ExternalAsciiString* string = ExternalAsciiString::cast(source); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1570 | typedef v8::String::ExternalAsciiStringResource Resource; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1571 | const Resource* resource = string->resource(); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1572 | if (resource == *resource_pointer) { |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1573 | sink_->Put(kNativesStringResource, "NativesStringResource"); |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1574 | sink_->PutSection(i, "NativesStringResourceEnd"); |
| 1575 | bytes_processed_so_far_ += sizeof(resource); |
| 1576 | return; |
| 1577 | } |
| 1578 | } |
| 1579 | } |
| 1580 | // One of the strings in the natives cache should match the resource. We |
| 1581 | // can't serialize any other kinds of external strings. |
| 1582 | UNREACHABLE(); |
| 1583 | } |
| 1584 | |
| 1585 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1586 | int Serializer::ObjectSerializer::OutputRawData( |
| 1587 | Address up_to, Serializer::ObjectSerializer::ReturnSkip return_skip) { |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1588 | Address object_start = object_->address(); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1589 | Address base = object_start + bytes_processed_so_far_; |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1590 | int up_to_offset = static_cast<int>(up_to - object_start); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1591 | int to_skip = up_to_offset - bytes_processed_so_far_; |
| 1592 | int bytes_to_output = to_skip; |
| 1593 | bytes_processed_so_far_ += to_skip; |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1594 | // This assert will fail if the reloc info gives us the target_address_address |
| 1595 | // locations in a non-ascending order. Luckily that doesn't happen. |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1596 | ASSERT(to_skip >= 0); |
| 1597 | bool outputting_code = false; |
| 1598 | if (to_skip != 0 && code_object_ && !code_has_been_output_) { |
| 1599 | // Output the code all at once and fix later. |
| 1600 | bytes_to_output = object_->Size() + to_skip - bytes_processed_so_far_; |
| 1601 | outputting_code = true; |
| 1602 | code_has_been_output_ = true; |
| 1603 | } |
| 1604 | if (bytes_to_output != 0 && |
| 1605 | (!code_object_ || outputting_code)) { |
| 1606 | #define RAW_CASE(index) \ |
| 1607 | if (!outputting_code && bytes_to_output == index * kPointerSize && \ |
| 1608 | index * kPointerSize == to_skip) { \ |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1609 | sink_->PutSection(kRawData + index, "RawDataFixed"); \ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1610 | to_skip = 0; /* This insn already skips. */ \ |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1611 | } else /* NOLINT */ |
| 1612 | COMMON_RAW_LENGTHS(RAW_CASE) |
| 1613 | #undef RAW_CASE |
| 1614 | { /* NOLINT */ |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1615 | // We always end up here if we are outputting the code of a code object. |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1616 | sink_->Put(kRawData, "RawData"); |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1617 | sink_->PutInt(bytes_to_output, "length"); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1618 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1619 | for (int i = 0; i < bytes_to_output; i++) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1620 | unsigned int data = base[i]; |
| 1621 | sink_->PutSection(data, "Byte"); |
| 1622 | } |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1623 | } |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1624 | if (to_skip != 0 && return_skip == kIgnoringReturn) { |
| 1625 | sink_->Put(kSkip, "Skip"); |
| 1626 | sink_->PutInt(to_skip, "SkipDistance"); |
| 1627 | to_skip = 0; |
| 1628 | } |
| 1629 | return to_skip; |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1630 | } |
| 1631 | |
| 1632 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1633 | int Serializer::SpaceOfObject(HeapObject* object) { |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1634 | for (int i = FIRST_SPACE; i <= LAST_SPACE; i++) { |
| 1635 | AllocationSpace s = static_cast<AllocationSpace>(i); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1636 | if (HEAP->InSpace(object, s)) { |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1637 | ASSERT(i < kNumberOfSpaces); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1638 | return i; |
| 1639 | } |
| 1640 | } |
| 1641 | UNREACHABLE(); |
| 1642 | return 0; |
| 1643 | } |
| 1644 | |
| 1645 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1646 | int Serializer::Allocate(int space, int size) { |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 1647 | CHECK(space >= 0 && space < kNumberOfSpaces); |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 1648 | int allocation_address = fullness_[space]; |
| 1649 | fullness_[space] = allocation_address + size; |
| 1650 | return allocation_address; |
| 1651 | } |
| 1652 | |
| 1653 | |
yangguo@chromium.org | ab30bb8 | 2012-02-24 14:41:46 +0000 | [diff] [blame] | 1654 | int Serializer::SpaceAreaSize(int space) { |
| 1655 | if (space == CODE_SPACE) { |
| 1656 | return isolate_->memory_allocator()->CodePageAreaSize(); |
| 1657 | } else { |
| 1658 | return Page::kPageSize - Page::kObjectStartOffset; |
| 1659 | } |
| 1660 | } |
| 1661 | |
| 1662 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 1663 | void Serializer::Pad() { |
| 1664 | // The non-branching GetInt will read up to 3 bytes too far, so we need |
| 1665 | // to pad the snapshot to make sure we don't read over the end. |
| 1666 | for (unsigned i = 0; i < sizeof(int32_t) - 1; i++) { |
| 1667 | sink_->Put(kNop, "Padding"); |
| 1668 | } |
| 1669 | } |
| 1670 | |
| 1671 | |
| 1672 | bool SnapshotByteSource::AtEOF() { |
| 1673 | if (0u + length_ - position_ > 2 * sizeof(uint32_t)) return false; |
| 1674 | for (int x = position_; x < length_; x++) { |
| 1675 | if (data_[x] != SerializerDeserializer::nop()) return false; |
| 1676 | } |
| 1677 | return true; |
| 1678 | } |
| 1679 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1680 | } } // namespace v8::internal |