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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1661 current_contents, kPlain, kStartOfObject, 0); | 1661 current_contents, kPlain, kStartOfObject, 0); |
1662 bytes_processed_so_far_ += kPointerSize; | 1662 bytes_processed_so_far_ += kPointerSize; |
1663 current++; | 1663 current++; |
1664 } | 1664 } |
1665 } | 1665 } |
1666 } | 1666 } |
1667 } | 1667 } |
1668 | 1668 |
1669 | 1669 |
1670 void Serializer::ObjectSerializer::VisitEmbeddedPointer(RelocInfo* rinfo) { | 1670 void Serializer::ObjectSerializer::VisitEmbeddedPointer(RelocInfo* rinfo) { |
1671 Object* current = rinfo->target_object(); | |
1672 | |
1673 int skip = OutputRawData(rinfo->target_address_address(), | 1671 int skip = OutputRawData(rinfo->target_address_address(), |
1674 kCanReturnSkipInsteadOfSkipping); | 1672 kCanReturnSkipInsteadOfSkipping); |
1675 HowToCode representation = rinfo->IsCodedSpecially() ? kFromCode : kPlain; | 1673 HowToCode how_to_code = rinfo->IsCodedSpecially() ? kFromCode : kPlain; |
1676 serializer_->SerializeObject(current, representation, kStartOfObject, skip); | 1674 Object* object = rinfo->target_object(); |
| 1675 serializer_->SerializeObject(object, how_to_code, kStartOfObject, skip); |
1677 bytes_processed_so_far_ += rinfo->target_address_size(); | 1676 bytes_processed_so_far_ += rinfo->target_address_size(); |
1678 } | 1677 } |
1679 | 1678 |
1680 | 1679 |
1681 void Serializer::ObjectSerializer::VisitExternalReference(Address* p) { | 1680 void Serializer::ObjectSerializer::VisitExternalReference(Address* p) { |
1682 Address references_start = reinterpret_cast<Address>(p); | 1681 int skip = OutputRawData(reinterpret_cast<Address>(p), |
1683 int skip = OutputRawData(references_start, kCanReturnSkipInsteadOfSkipping); | 1682 kCanReturnSkipInsteadOfSkipping); |
1684 | |
1685 sink_->Put(kExternalReference + kPlain + kStartOfObject, "ExternalRef"); | 1683 sink_->Put(kExternalReference + kPlain + kStartOfObject, "ExternalRef"); |
1686 sink_->PutInt(skip, "SkipB4ExternalRef"); | 1684 sink_->PutInt(skip, "SkipB4ExternalRef"); |
1687 int reference_id = serializer_->EncodeExternalReference(*p); | 1685 Address target = *p; |
1688 sink_->PutInt(reference_id, "reference id"); | 1686 sink_->PutInt(serializer_->EncodeExternalReference(target), "reference id"); |
1689 bytes_processed_so_far_ += kPointerSize; | 1687 bytes_processed_so_far_ += kPointerSize; |
1690 } | 1688 } |
1691 | 1689 |
1692 | 1690 |
1693 void Serializer::ObjectSerializer::VisitExternalReference(RelocInfo* rinfo) { | 1691 void Serializer::ObjectSerializer::VisitExternalReference(RelocInfo* rinfo) { |
1694 Address references_start = rinfo->target_address_address(); | 1692 int skip = OutputRawData(rinfo->target_address_address(), |
1695 int skip = OutputRawData(references_start, kCanReturnSkipInsteadOfSkipping); | 1693 kCanReturnSkipInsteadOfSkipping); |
1696 | 1694 HowToCode how_to_code = rinfo->IsCodedSpecially() ? kFromCode : kPlain; |
1697 Address current = rinfo->target_reference(); | 1695 sink_->Put(kExternalReference + how_to_code + kStartOfObject, "ExternalRef"); |
1698 int representation = rinfo->IsCodedSpecially() ? | |
1699 kFromCode + kStartOfObject : kPlain + kStartOfObject; | |
1700 sink_->Put(kExternalReference + representation, "ExternalRef"); | |
1701 sink_->PutInt(skip, "SkipB4ExternalRef"); | 1696 sink_->PutInt(skip, "SkipB4ExternalRef"); |
1702 int reference_id = serializer_->EncodeExternalReference(current); | 1697 Address target = rinfo->target_reference(); |
1703 sink_->PutInt(reference_id, "reference id"); | 1698 sink_->PutInt(serializer_->EncodeExternalReference(target), "reference id"); |
1704 bytes_processed_so_far_ += rinfo->target_address_size(); | 1699 bytes_processed_so_far_ += rinfo->target_address_size(); |
1705 } | 1700 } |
1706 | 1701 |
1707 | 1702 |
1708 void Serializer::ObjectSerializer::VisitRuntimeEntry(RelocInfo* rinfo) { | 1703 void Serializer::ObjectSerializer::VisitRuntimeEntry(RelocInfo* rinfo) { |
1709 Address target_start = rinfo->target_address_address(); | 1704 int skip = OutputRawData(rinfo->target_address_address(), |
1710 int skip = OutputRawData(target_start, kCanReturnSkipInsteadOfSkipping); | 1705 kCanReturnSkipInsteadOfSkipping); |
| 1706 HowToCode how_to_code = rinfo->IsCodedSpecially() ? kFromCode : kPlain; |
| 1707 sink_->Put(kExternalReference + how_to_code + kStartOfObject, "ExternalRef"); |
| 1708 sink_->PutInt(skip, "SkipB4ExternalRef"); |
1711 Address target = rinfo->target_address(); | 1709 Address target = rinfo->target_address(); |
1712 uint32_t encoding = serializer_->EncodeExternalReference(target); | 1710 sink_->PutInt(serializer_->EncodeExternalReference(target), "reference id"); |
1713 CHECK(target == NULL ? encoding == 0 : encoding != 0); | |
1714 int representation; | |
1715 // Can't use a ternary operator because of gcc. | |
1716 if (rinfo->IsCodedSpecially()) { | |
1717 representation = kStartOfObject + kFromCode; | |
1718 } else { | |
1719 representation = kStartOfObject + kPlain; | |
1720 } | |
1721 sink_->Put(kExternalReference + representation, "ExternalReference"); | |
1722 sink_->PutInt(skip, "SkipB4ExternalRef"); | |
1723 sink_->PutInt(encoding, "reference id"); | |
1724 bytes_processed_so_far_ += rinfo->target_address_size(); | 1711 bytes_processed_so_far_ += rinfo->target_address_size(); |
1725 } | 1712 } |
1726 | 1713 |
1727 | 1714 |
1728 void Serializer::ObjectSerializer::VisitCodeTarget(RelocInfo* rinfo) { | 1715 void Serializer::ObjectSerializer::VisitCodeTarget(RelocInfo* rinfo) { |
1729 CHECK(RelocInfo::IsCodeTarget(rinfo->rmode())); | 1716 int skip = OutputRawData(rinfo->target_address_address(), |
1730 Address target_start = rinfo->target_address_address(); | 1717 kCanReturnSkipInsteadOfSkipping); |
1731 int skip = OutputRawData(target_start, kCanReturnSkipInsteadOfSkipping); | 1718 Code* object = Code::GetCodeFromTargetAddress(rinfo->target_address()); |
1732 Code* target = Code::GetCodeFromTargetAddress(rinfo->target_address()); | 1719 serializer_->SerializeObject(object, kFromCode, kInnerPointer, skip); |
1733 serializer_->SerializeObject(target, kFromCode, kInnerPointer, skip); | |
1734 bytes_processed_so_far_ += rinfo->target_address_size(); | 1720 bytes_processed_so_far_ += rinfo->target_address_size(); |
1735 } | 1721 } |
1736 | 1722 |
1737 | 1723 |
1738 void Serializer::ObjectSerializer::VisitCodeEntry(Address entry_address) { | 1724 void Serializer::ObjectSerializer::VisitCodeEntry(Address entry_address) { |
1739 Code* target = Code::cast(Code::GetObjectFromEntryAddress(entry_address)); | |
1740 int skip = OutputRawData(entry_address, kCanReturnSkipInsteadOfSkipping); | 1725 int skip = OutputRawData(entry_address, kCanReturnSkipInsteadOfSkipping); |
1741 serializer_->SerializeObject(target, kPlain, kInnerPointer, skip); | 1726 Code* object = Code::cast(Code::GetObjectFromEntryAddress(entry_address)); |
| 1727 serializer_->SerializeObject(object, kPlain, kInnerPointer, skip); |
1742 bytes_processed_so_far_ += kPointerSize; | 1728 bytes_processed_so_far_ += kPointerSize; |
1743 } | 1729 } |
1744 | 1730 |
1745 | 1731 |
1746 void Serializer::ObjectSerializer::VisitCell(RelocInfo* rinfo) { | 1732 void Serializer::ObjectSerializer::VisitCell(RelocInfo* rinfo) { |
1747 ASSERT(rinfo->rmode() == RelocInfo::CELL); | |
1748 Cell* cell = Cell::cast(rinfo->target_cell()); | |
1749 int skip = OutputRawData(rinfo->pc(), kCanReturnSkipInsteadOfSkipping); | 1733 int skip = OutputRawData(rinfo->pc(), kCanReturnSkipInsteadOfSkipping); |
1750 serializer_->SerializeObject(cell, kPlain, kInnerPointer, skip); | 1734 Cell* object = Cell::cast(rinfo->target_cell()); |
| 1735 serializer_->SerializeObject(object, kPlain, kInnerPointer, skip); |
1751 } | 1736 } |
1752 | 1737 |
1753 | 1738 |
1754 void Serializer::ObjectSerializer::VisitExternalAsciiString( | 1739 void Serializer::ObjectSerializer::VisitExternalAsciiString( |
1755 v8::String::ExternalAsciiStringResource** resource_pointer) { | 1740 v8::String::ExternalAsciiStringResource** resource_pointer) { |
1756 Address references_start = reinterpret_cast<Address>(resource_pointer); | 1741 Address references_start = reinterpret_cast<Address>(resource_pointer); |
1757 OutputRawData(references_start); | 1742 OutputRawData(references_start); |
1758 for (int i = 0; i < Natives::GetBuiltinsCount(); i++) { | 1743 for (int i = 0; i < Natives::GetBuiltinsCount(); i++) { |
1759 Object* source = | 1744 Object* source = |
1760 serializer_->isolate()->heap()->natives_source_cache()->get(i); | 1745 serializer_->isolate()->heap()->natives_source_cache()->get(i); |
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1895 | 1880 |
1896 bool SnapshotByteSource::AtEOF() { | 1881 bool SnapshotByteSource::AtEOF() { |
1897 if (0u + length_ - position_ > 2 * sizeof(uint32_t)) return false; | 1882 if (0u + length_ - position_ > 2 * sizeof(uint32_t)) return false; |
1898 for (int x = position_; x < length_; x++) { | 1883 for (int x = position_; x < length_; x++) { |
1899 if (data_[x] != SerializerDeserializer::nop()) return false; | 1884 if (data_[x] != SerializerDeserializer::nop()) return false; |
1900 } | 1885 } |
1901 return true; | 1886 return true; |
1902 } | 1887 } |
1903 | 1888 |
1904 } } // namespace v8::internal | 1889 } } // namespace v8::internal |
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