Mercurial > hg > graal-compiler
view src/share/vm/gc_implementation/parallelScavenge/psScavenge.inline.hpp @ 51:1ffa5cdd0b7e
6667089: 3/3 multiple redefinitions of a class break reflection
Summary: Use instanceKlass::method_with_idnum() instead of slot() to work with RedefineClasses().
Reviewed-by: sspitsyn
author | dcubed |
---|---|
date | Wed, 12 Mar 2008 18:39:05 -0700 |
parents | a61af66fc99e |
children | ba764ed4b6f2 |
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/* * Copyright 2002-2006 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ inline void PSScavenge::save_to_space_top_before_gc() { ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); _to_space_top_before_gc = heap->young_gen()->to_space()->top(); } inline bool PSScavenge::should_scavenge(oop p) { return p == NULL ? false : PSScavenge::is_obj_in_young((HeapWord*) p); } inline bool PSScavenge::should_scavenge(oop p, MutableSpace* to_space) { if (should_scavenge(p)) { // Skip objects copied to to_space since the scavenge started. HeapWord* const addr = (HeapWord*) p; return addr < to_space_top_before_gc() || addr >= to_space->end(); } return false; } inline bool PSScavenge::should_scavenge(oop p, bool check_to_space) { if (check_to_space) { ParallelScavengeHeap* heap = (ParallelScavengeHeap*) Universe::heap(); return should_scavenge(p, heap->young_gen()->to_space()); } return should_scavenge(p); } // Attempt to "claim" oop at p via CAS, push the new obj if successful // This version tests the oop* to make sure it is within the heap before // attempting marking. inline void PSScavenge::copy_and_push_safe_barrier(PSPromotionManager* pm, oop* p) { assert(should_scavenge(*p, true), "revisiting object?"); oop o = *p; if (o->is_forwarded()) { *p = o->forwardee(); } else { *p = pm->copy_to_survivor_space(o, pm->depth_first()); } // We cannot mark without test, as some code passes us pointers // that are outside the heap. if ((!PSScavenge::is_obj_in_young((HeapWord*) p)) && Universe::heap()->is_in_reserved(p)) { o = *p; if (PSScavenge::is_obj_in_young((HeapWord*) o)) { card_table()->inline_write_ref_field_gc(p, o); } } }