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Side by Side Diff: src/snapshot/serialize.h

Issue 1313513004: Version 4.6.85.6 (cherry-pick) (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@4.6
Patch Set: Created 5 years, 3 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef V8_SNAPSHOT_SERIALIZE_H_ 5 #ifndef V8_SNAPSHOT_SERIALIZE_H_
6 #define V8_SNAPSHOT_SERIALIZE_H_ 6 #define V8_SNAPSHOT_SERIALIZE_H_
7 7
8 #include "src/hashmap.h" 8 #include "src/hashmap.h"
9 #include "src/isolate.h" 9 #include "src/isolate.h"
10 #include "src/snapshot/snapshot-source-sink.h" 10 #include "src/snapshot/snapshot-source-sink.h"
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540 void Deserialize(Isolate* isolate); 540 void Deserialize(Isolate* isolate);
541 541
542 // Deserialize a single object and the objects reachable from it. 542 // Deserialize a single object and the objects reachable from it.
543 MaybeHandle<Object> DeserializePartial( 543 MaybeHandle<Object> DeserializePartial(
544 Isolate* isolate, Handle<JSGlobalProxy> global_proxy, 544 Isolate* isolate, Handle<JSGlobalProxy> global_proxy,
545 Handle<FixedArray>* outdated_contexts_out); 545 Handle<FixedArray>* outdated_contexts_out);
546 546
547 // Deserialize a shared function info. Fail gracefully. 547 // Deserialize a shared function info. Fail gracefully.
548 MaybeHandle<SharedFunctionInfo> DeserializeCode(Isolate* isolate); 548 MaybeHandle<SharedFunctionInfo> DeserializeCode(Isolate* isolate);
549 549
550 void FlushICacheForNewCodeObjects();
551
552 // Pass a vector of externally-provided objects referenced by the snapshot. 550 // Pass a vector of externally-provided objects referenced by the snapshot.
553 // The ownership to its backing store is handed over as well. 551 // The ownership to its backing store is handed over as well.
554 void SetAttachedObjects(Vector<Handle<Object> > attached_objects) { 552 void SetAttachedObjects(Vector<Handle<Object> > attached_objects) {
555 attached_objects_ = attached_objects; 553 attached_objects_ = attached_objects;
556 } 554 }
557 555
558 private: 556 private:
559 virtual void VisitPointers(Object** start, Object** end); 557 virtual void VisitPointers(Object** start, Object** end);
560 558
561 virtual void VisitRuntimeEntry(RelocInfo* rinfo) { 559 virtual void VisitRuntimeEntry(RelocInfo* rinfo) {
562 UNREACHABLE(); 560 UNREACHABLE();
563 } 561 }
564 562
565 void Initialize(Isolate* isolate); 563 void Initialize(Isolate* isolate);
566 564
567 bool deserializing_user_code() { return deserializing_user_code_; } 565 bool deserializing_user_code() { return deserializing_user_code_; }
568 566
569 void DecodeReservation(Vector<const SerializedData::Reservation> res); 567 void DecodeReservation(Vector<const SerializedData::Reservation> res);
570 568
571 bool ReserveSpace(); 569 bool ReserveSpace();
572 570
573 void UnalignedCopy(Object** dest, Object** src) { 571 void UnalignedCopy(Object** dest, Object** src) {
574 memcpy(dest, src, sizeof(*src)); 572 memcpy(dest, src, sizeof(*src));
575 } 573 }
576 574
577 void DeserializeDeferredObjects(); 575 void DeserializeDeferredObjects();
578 576
577 void FlushICacheForNewIsolate();
578 void FlushICacheForNewCodeObjects();
579
579 void CommitNewInternalizedStrings(Isolate* isolate); 580 void CommitNewInternalizedStrings(Isolate* isolate);
580 581
581 // Fills in some heap data in an area from start to end (non-inclusive). The 582 // Fills in some heap data in an area from start to end (non-inclusive). The
582 // space id is used for the write barrier. The object_address is the address 583 // space id is used for the write barrier. The object_address is the address
583 // of the object we are writing into, or NULL if we are not writing into an 584 // of the object we are writing into, or NULL if we are not writing into an
584 // object, i.e. if we are writing a series of tagged values that are not on 585 // object, i.e. if we are writing a series of tagged values that are not on
585 // the heap. Return false if the object content has been deferred. 586 // the heap. Return false if the object content has been deferred.
586 bool ReadData(Object** start, Object** end, int space, 587 bool ReadData(Object** start, Object** end, int space,
587 Address object_address); 588 Address object_address);
588 void ReadObject(int space_number, Object** write_back); 589 void ReadObject(int space_number, Object** write_back);
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1052 static const int kNumReservationsOffset = kFlagHashOffset + kInt32Size; 1053 static const int kNumReservationsOffset = kFlagHashOffset + kInt32Size;
1053 static const int kNumCodeStubKeysOffset = kNumReservationsOffset + kInt32Size; 1054 static const int kNumCodeStubKeysOffset = kNumReservationsOffset + kInt32Size;
1054 static const int kPayloadLengthOffset = kNumCodeStubKeysOffset + kInt32Size; 1055 static const int kPayloadLengthOffset = kNumCodeStubKeysOffset + kInt32Size;
1055 static const int kChecksum1Offset = kPayloadLengthOffset + kInt32Size; 1056 static const int kChecksum1Offset = kPayloadLengthOffset + kInt32Size;
1056 static const int kChecksum2Offset = kChecksum1Offset + kInt32Size; 1057 static const int kChecksum2Offset = kChecksum1Offset + kInt32Size;
1057 static const int kHeaderSize = kChecksum2Offset + kInt32Size; 1058 static const int kHeaderSize = kChecksum2Offset + kInt32Size;
1058 }; 1059 };
1059 } } // namespace v8::internal 1060 } } // namespace v8::internal
1060 1061
1061 #endif // V8_SNAPSHOT_SERIALIZE_H_ 1062 #endif // V8_SNAPSHOT_SERIALIZE_H_
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