8003720: NPG: Method in interpreter stack frame can be deallocated

Pass down a closure during root scanning to keep the class of the method alive.

Reviewed-by: coleenp, jcoomes
This commit is contained in:
Stefan Karlsson 2012-11-27 10:13:20 +01:00
parent 2e2b69e96b
commit 3c2f3a321a
18 changed files with 327 additions and 42 deletions

View file

@ -495,8 +495,9 @@ void PSMarkSweep::mark_sweep_phase1(bool clear_all_softrefs) {
ParallelScavengeHeap::ParStrongRootsScope psrs;
Universe::oops_do(mark_and_push_closure());
JNIHandles::oops_do(mark_and_push_closure()); // Global (strong) JNI handles
CLDToOopClosure mark_and_push_from_cld(mark_and_push_closure());
CodeBlobToOopClosure each_active_code_blob(mark_and_push_closure(), /*do_marking=*/ true);
Threads::oops_do(mark_and_push_closure(), &each_active_code_blob);
Threads::oops_do(mark_and_push_closure(), &mark_and_push_from_cld, &each_active_code_blob);
ObjectSynchronizer::oops_do(mark_and_push_closure());
FlatProfiler::oops_do(mark_and_push_closure());
Management::oops_do(mark_and_push_closure());
@ -584,7 +585,8 @@ void PSMarkSweep::mark_sweep_phase3() {
// General strong roots.
Universe::oops_do(adjust_root_pointer_closure());
JNIHandles::oops_do(adjust_root_pointer_closure()); // Global (strong) JNI handles
Threads::oops_do(adjust_root_pointer_closure(), NULL);
CLDToOopClosure adjust_from_cld(adjust_root_pointer_closure());
Threads::oops_do(adjust_root_pointer_closure(), &adjust_from_cld, NULL);
ObjectSynchronizer::oops_do(adjust_root_pointer_closure());
FlatProfiler::oops_do(adjust_root_pointer_closure());
Management::oops_do(adjust_root_pointer_closure());