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8296875: Generational ZGC: Refactor loom code

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Co-authored-by: Stefan Karlsson <stefank@openjdk.org>
Co-authored-by: Axel Boldt-Christmas <aboldtch@openjdk.org>
Reviewed-by: stefank, rrich, pchilanomate
This commit is contained in:
Erik Österlund 2022-11-30 14:08:57 +00:00
parent 301cf52fa2
commit be99e84c98
42 changed files with 752 additions and 339 deletions
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11
src/hotspot/share/runtime/javaThread.cpp
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@ -1382,6 +1382,17 @@ void JavaThread::oops_do_no_frames(OopClosure* f, CodeBlobClosure* cf) {
if (jvmti_thread_state() != NULL) {
jvmti_thread_state()->oops_do(f, cf);
}
// The continuation oops are really on the stack. But there is typically at most
// one of those per thread, so we handle them here in the oops_do_no_frames part
// so that we don't have to sprinkle as many stack watermark checks where these
// oops are used. We just need to make sure the thread has started processing.
ContinuationEntry* entry = _cont_entry;
while (entry != nullptr) {
f->do_oop((oop*)entry->cont_addr());
f->do_oop((oop*)entry->chunk_addr());
entry = entry->parent();
}
}
void JavaThread::oops_do_frames(OopClosure* f, CodeBlobClosure* cf) {