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Before a scavenge collection in debug builds with ENABLE_SLOW_ASSERTS,

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we verify that there are no pointers to new space from the code space.
Add the old data space to this verification.

Review URL: http://codereview.chromium.org/113095

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1897 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
kmillikin@chromium.org 2009-05-07 10:43:33 +00:00
parent 3dc6701516
commit 3299f63c0d
1 changed files with 24 additions and 14 deletions
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38
src/heap.cc
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@ -554,24 +554,34 @@ class VerifyNonPointerSpacePointersVisitor: public ObjectVisitor {
}
}
};
static void VerifyNonPointerSpacePointers() {
// Verify that there are no pointers to new space in spaces where we
// do not expect them.
VerifyNonPointerSpacePointersVisitor v;
HeapObjectIterator code_it(Heap::code_space());
while (code_it.has_next()) {
HeapObject* object = code_it.next();
if (object->IsCode()) {
Code::cast(object)->ConvertICTargetsFromAddressToObject();
object->Iterate(&v);
Code::cast(object)->ConvertICTargetsFromObjectToAddress();
} else {
// If we find non-code objects in code space (e.g., free list
// nodes) we want to verify them as well.
object->Iterate(&v);
}
}
HeapObjectIterator data_it(Heap::old_data_space());
while (data_it.has_next()) data_it.next()->Iterate(&v);
}
#endif
void Heap::Scavenge() {
#ifdef DEBUG
if (FLAG_enable_slow_asserts) {
VerifyNonPointerSpacePointersVisitor v;
HeapObjectIterator it(code_space_);
while (it.has_next()) {
HeapObject* object = it.next();
if (object->IsCode()) {
Code::cast(object)->ConvertICTargetsFromAddressToObject();
}
object->Iterate(&v);
if (object->IsCode()) {
Code::cast(object)->ConvertICTargetsFromObjectToAddress();
}
}
}
if (FLAG_enable_slow_asserts) VerifyNonPointerSpacePointers();
#endif
gc_state_ = SCAVENGE;