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Refactor embedded pointer visitors for the serializer

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This patch continues the refactoring that started in r9597 and
extends it with support for the serializer.
This is required for MIPS support in the serializer.

Review URL: http://codereview.chromium.org/8467010
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
mstarzinger@chromium.org 2011-11-11 12:28:42 +00:00
parent 95eda367f1
commit 5834284848
8 changed files with 48 additions and 9 deletions
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8
src/arm/assembler-arm-inl.h
View File

@ -64,7 +64,9 @@ Address RelocInfo::target_address() {
Address RelocInfo::target_address_address() {
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY);
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY
|| rmode_ == EMBEDDED_OBJECT
|| rmode_ == EXTERNAL_REFERENCE);
return reinterpret_cast<Address>(Assembler::target_address_address_at(pc_));
}
@ -224,7 +226,7 @@ void RelocInfo::Visit(ObjectVisitor* visitor) {
} else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) {
visitor->VisitGlobalPropertyCell(this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
visitor->VisitExternalReference(target_reference_address());
visitor->VisitExternalReference(this);
#ifdef ENABLE_DEBUGGER_SUPPORT
// TODO(isolates): Get a cached isolate below.
} else if (((RelocInfo::IsJSReturn(mode) &&
@ -250,7 +252,7 @@ void RelocInfo::Visit(Heap* heap) {
} else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) {
StaticVisitor::VisitGlobalPropertyCell(heap, this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
StaticVisitor::VisitExternalReference(target_reference_address());
StaticVisitor::VisitExternalReference(this);
#ifdef ENABLE_DEBUGGER_SUPPORT
} else if (heap->isolate()->debug()->has_break_points() &&
((RelocInfo::IsJSReturn(mode) &&

8
src/ia32/assembler-ia32-inl.h
View File

@ -78,7 +78,9 @@ Address RelocInfo::target_address() {
Address RelocInfo::target_address_address() {
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY);
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY
|| rmode_ == EMBEDDED_OBJECT
|| rmode_ == EXTERNAL_REFERENCE);
return reinterpret_cast<Address>(pc_);
}
@ -224,7 +226,7 @@ void RelocInfo::Visit(ObjectVisitor* visitor) {
} else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) {
visitor->VisitGlobalPropertyCell(this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
visitor->VisitExternalReference(target_reference_address());
visitor->VisitExternalReference(this);
CPU::FlushICache(pc_, sizeof(Address));
#ifdef ENABLE_DEBUGGER_SUPPORT
// TODO(isolates): Get a cached isolate below.
@ -252,7 +254,7 @@ void RelocInfo::Visit(Heap* heap) {
} else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) {
StaticVisitor::VisitGlobalPropertyCell(heap, this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
StaticVisitor::VisitExternalReference(target_reference_address());
StaticVisitor::VisitExternalReference(this);
CPU::FlushICache(pc_, sizeof(Address));
#ifdef ENABLE_DEBUGGER_SUPPORT
} else if (heap->isolate()->debug()->has_break_points() &&

1
src/mark-compact.cc
View File

@ -921,6 +921,7 @@ class StaticMarkingVisitor : public StaticVisitorBase {
}
static inline void VisitExternalReference(Address* p) { }
static inline void VisitExternalReference(RelocInfo* rinfo) { }
static inline void VisitRuntimeEntry(RelocInfo* rinfo) { }
private:

4
src/objects.cc
View File

@ -7718,6 +7718,10 @@ void ObjectVisitor::VisitEmbeddedPointer(RelocInfo* rinfo) {
VisitPointer(rinfo->target_object_address());
}
void ObjectVisitor::VisitExternalReference(RelocInfo* rinfo) {
Address* p = rinfo->target_reference_address();
VisitExternalReferences(p, p + 1);
}
void Code::InvalidateRelocation() {
set_relocation_info(GetHeap()->empty_byte_array());

2
src/objects.h
View File

@ -7810,6 +7810,8 @@ class ObjectVisitor BASE_EMBEDDED {
// may be modified on return.
virtual void VisitExternalReferences(Address* start, Address* end) {}
virtual void VisitExternalReference(RelocInfo* rinfo);
inline void VisitExternalReference(Address* p) {
VisitExternalReferences(p, p + 1);
}

24
src/serialize.cc
View File

@ -1471,6 +1471,16 @@ void Serializer::ObjectSerializer::VisitPointers(Object** start,
}
void Serializer::ObjectSerializer::VisitEmbeddedPointer(RelocInfo* rinfo) {
Object** current = rinfo->target_object_address();
OutputRawData(rinfo->target_address_address());
HowToCode representation = rinfo->IsCodedSpecially() ? kFromCode : kPlain;
serializer_->SerializeObject(*current, representation, kStartOfObject);
bytes_processed_so_far_ += rinfo->target_address_size();
}
void Serializer::ObjectSerializer::VisitExternalReferences(Address* start,
Address* end) {
Address references_start = reinterpret_cast<Address>(start);
@ -1485,6 +1495,20 @@ void Serializer::ObjectSerializer::VisitExternalReferences(Address* start,
}
void Serializer::ObjectSerializer::VisitExternalReference(RelocInfo* rinfo) {
Address references_start = rinfo->target_address_address();
OutputRawData(references_start);
Address* current = rinfo->target_reference_address();
int representation = rinfo->IsCodedSpecially() ?
kFromCode + kStartOfObject : kPlain + kStartOfObject;
sink_->Put(kExternalReference + representation, "ExternalRef");
int reference_id = serializer_->EncodeExternalReference(*current);
sink_->PutInt(reference_id, "reference id");
bytes_processed_so_far_ += rinfo->target_address_size();
}
void Serializer::ObjectSerializer::VisitRuntimeEntry(RelocInfo* rinfo) {
Address target_start = rinfo->target_address_address();
OutputRawData(target_start);

2
src/serialize.h
View File

@ -514,7 +514,9 @@ class Serializer : public SerializerDeserializer {
bytes_processed_so_far_(0) { }
void Serialize();
void VisitPointers(Object** start, Object** end);
void VisitEmbeddedPointer(RelocInfo* target);
void VisitExternalReferences(Address* start, Address* end);
void VisitExternalReference(RelocInfo* rinfo);
void VisitCodeTarget(RelocInfo* target);
void VisitCodeEntry(Address entry_address);
void VisitGlobalPropertyCell(RelocInfo* rinfo);

8
src/x64/assembler-x64-inl.h
View File

@ -224,7 +224,9 @@ Address RelocInfo::target_address() {
Address RelocInfo::target_address_address() {
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY);
ASSERT(IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY
|| rmode_ == EMBEDDED_OBJECT
|| rmode_ == EXTERNAL_REFERENCE);
return reinterpret_cast<Address>(pc_);
}
@ -399,7 +401,7 @@ void RelocInfo::Visit(ObjectVisitor* visitor) {
} else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) {
visitor->VisitGlobalPropertyCell(this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
visitor->VisitExternalReference(target_reference_address());
visitor->VisitExternalReference(this);
CPU::FlushICache(pc_, sizeof(Address));
#ifdef ENABLE_DEBUGGER_SUPPORT
// TODO(isolates): Get a cached isolate below.
@ -427,7 +429,7 @@ void RelocInfo::Visit(Heap* heap) {
} else if (mode == RelocInfo::GLOBAL_PROPERTY_CELL) {
StaticVisitor::VisitGlobalPropertyCell(heap, this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
StaticVisitor::VisitExternalReference(target_reference_address());
StaticVisitor::VisitExternalReference(this);
CPU::FlushICache(pc_, sizeof(Address));
#ifdef ENABLE_DEBUGGER_SUPPORT
} else if (heap->isolate()->debug()->has_break_points() &&