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[heap] Fix recording on aborted code pages

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R=ulan@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2021823002
Cr-Commit-Position: refs/heads/master@{#36580}
This commit is contained in:
mlippautz 2016-05-30 04:25:37 -07:00 committed by Commit bot
parent 359a269a0c
commit 4b64030045
2 changed files with 7 additions and 4 deletions
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8
src/heap/mark-compact.cc
View File

@ -3138,8 +3138,11 @@ bool MarkCompactCollector::Evacuator::EvacuatePage(Page* page) {
case kObjectsOldToOld:
result = EvacuateSinglePage<kClearMarkbits>(page, &old_space_visitor_);
if (!result) {
// Aborted compaction page. We can record slots here to have them
// processed in parallel later on.
// Aborted compaction page. We have to record slots here, since we might
// not have recorded them in first place.
// Note: We mark the page as aborted here to be able to record slots
// for code objects in |RecordMigratedSlotVisitor|.
page->SetFlag(Page::COMPACTION_WAS_ABORTED);
EvacuateRecordOnlyVisitor record_visitor(collector_->heap());
result = EvacuateSinglePage<kKeepMarking>(page, &record_visitor);
DCHECK(result);
@ -3234,7 +3237,6 @@ class EvacuationJobTraits {
} else {
// We have partially compacted the page, i.e., some objects may have
// moved, others are still in place.
p->SetFlag(Page::COMPACTION_WAS_ABORTED);
p->ClearEvacuationCandidate();
// Slots have already been recorded so we just need to add it to the
// sweeper.

3
src/heap/spaces.h
View File

@ -713,7 +713,8 @@ class MemoryChunk {
}
bool ShouldSkipEvacuationSlotRecording() {
return (flags_ & kSkipEvacuationSlotsRecordingMask) != 0;
return ((flags_ & kSkipEvacuationSlotsRecordingMask) != 0) &&
!IsFlagSet(COMPACTION_WAS_ABORTED);
}
Executability executable() {