Mercurial > hg > truffle
diff src/share/vm/oops/methodDataKlass.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | ba764ed4b6f2 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/oops/methodDataKlass.cpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,238 @@ +/* + * Copyright 2000-2006 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. + * + */ + +# include "incls/_precompiled.incl" +# include "incls/_methodDataKlass.cpp.incl" + +klassOop methodDataKlass::create_klass(TRAPS) { + methodDataKlass o; + KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); + KlassHandle k = base_create_klass(h_this_klass, header_size(), + o.vtbl_value(), CHECK_NULL); + // Make sure size calculation is right + assert(k()->size() == align_object_size(header_size()), + "wrong size for object"); + return k(); +} + + +int methodDataKlass::oop_size(oop obj) const { + assert(obj->is_methodData(), "must be method data oop"); + return methodDataOop(obj)->object_size(); +} + + +bool methodDataKlass::oop_is_parsable(oop obj) const { + assert(obj->is_methodData(), "must be method data oop"); + return methodDataOop(obj)->object_is_parsable(); +} + + +methodDataOop methodDataKlass::allocate(methodHandle method, TRAPS) { + int size = methodDataOopDesc::compute_allocation_size_in_words(method); + KlassHandle h_k(THREAD, as_klassOop()); + methodDataOop mdo = + (methodDataOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); + assert(!mdo->is_parsable(), "not expecting parsability yet."); + No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC + mdo->initialize(method); + + assert(mdo->is_parsable(), "should be parsable here."); + assert(size == mdo->object_size(), "wrong size for methodDataOop"); + return mdo; +} + + +void methodDataKlass::oop_follow_contents(oop obj) { + assert (obj->is_methodData(), "object must be method data"); + methodDataOop m = methodDataOop(obj); + + obj->follow_header(); + MarkSweep::mark_and_push(m->adr_method()); + ResourceMark rm; + for (ProfileData* data = m->first_data(); + m->is_valid(data); + data = m->next_data(data)) { + data->follow_contents(); + } +} + +#ifndef SERIALGC +void methodDataKlass::oop_follow_contents(ParCompactionManager* cm, + oop obj) { + assert (obj->is_methodData(), "object must be method data"); + methodDataOop m = methodDataOop(obj); + + obj->follow_header(cm); + PSParallelCompact::mark_and_push(cm, m->adr_method()); + ResourceMark rm; + for (ProfileData* data = m->first_data(); + m->is_valid(data); + data = m->next_data(data)) { + data->follow_contents(cm); + } +} +#endif // SERIALGC + +int methodDataKlass::oop_oop_iterate(oop obj, OopClosure* blk) { + assert (obj->is_methodData(), "object must be method data"); + methodDataOop m = methodDataOop(obj); + // Get size before changing pointers + // Don't call size() or oop_size() since that is a virtual call. + int size = m->object_size(); + + obj->oop_iterate_header(blk); + blk->do_oop(m->adr_method()); + ResourceMark rm; + for (ProfileData* data = m->first_data(); + m->is_valid(data); + data = m->next_data(data)) { + data->oop_iterate(blk); + } + return size; +} + + +int methodDataKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { + assert (obj->is_methodData(), "object must be method data"); + methodDataOop m = methodDataOop(obj); + // Get size before changing pointers + // Don't call size() or oop_size() since that is a virtual call. + int size = m->object_size(); + + obj->oop_iterate_header(blk, mr); + oop* adr = m->adr_method(); + if (mr.contains(adr)) { + blk->do_oop(m->adr_method()); + } + ResourceMark rm; + for (ProfileData* data = m->first_data(); + m->is_valid(data); + data = m->next_data(data)) { + data->oop_iterate_m(blk, mr); + } + return size; +} + +int methodDataKlass::oop_adjust_pointers(oop obj) { + assert(obj->is_methodData(), "should be method data"); + methodDataOop m = methodDataOop(obj); + // Get size before changing pointers + // Don't call size() or oop_size() since that is a virtual call. + int size = m->object_size(); + + obj->adjust_header(); + MarkSweep::adjust_pointer(m->adr_method()); + ResourceMark rm; + ProfileData* data; + for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { + data->adjust_pointers(); + } + return size; +} + + +#ifndef SERIALGC +void methodDataKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) { + assert (obj->is_methodData(), "object must be method data"); + methodDataOop m = methodDataOop(obj); + // This should never point into the young gen. + assert(!PSScavenge::should_scavenge(oop(*m->adr_method())), "Sanity"); +} + +void methodDataKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { + assert (obj->is_methodData(), "object must be method data"); + methodDataOop m = methodDataOop(obj); + // This should never point into the young gen. + assert(!PSScavenge::should_scavenge(oop(*m->adr_method())), "Sanity"); +} + +int methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { + assert(obj->is_methodData(), "should be method data"); + methodDataOop m = methodDataOop(obj); + + PSParallelCompact::adjust_pointer(m->adr_method()); + + ResourceMark rm; + ProfileData* data; + for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { + data->update_pointers(); + } + return m->object_size(); +} + +int +methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, + HeapWord* beg_addr, HeapWord* end_addr) { + assert(obj->is_methodData(), "should be method data"); + + oop* p; + methodDataOop m = methodDataOop(obj); + + p = m->adr_method(); + PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); + + ResourceMark rm; + ProfileData* data; + for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { + data->update_pointers(beg_addr, end_addr); + } + return m->object_size(); +} +#endif // SERIALGC + +#ifndef PRODUCT + +// Printing +void methodDataKlass::oop_print_on(oop obj, outputStream* st) { + assert(obj->is_methodData(), "should be method data"); + methodDataOop m = methodDataOop(obj); + st->print("method data for "); + m->method()->print_value_on(st); + st->cr(); + m->print_data_on(st); +} + +void methodDataKlass::oop_print_value_on(oop obj, outputStream* st) { + assert(obj->is_methodData(), "should be method data"); + methodDataOop m = methodDataOop(obj); + st->print("method data for "); + m->method()->print_value_on(st); +} + +#endif // !PRODUCT + +const char* methodDataKlass::internal_name() const { + return "{method data}"; +} + + +// Verification +void methodDataKlass::oop_verify_on(oop obj, outputStream* st) { + Klass::oop_verify_on(obj, st); + guarantee(obj->is_methodData(), "object must be method data"); + methodDataOop m = methodDataOop(obj); + guarantee(m->is_perm(), "should be in permspace"); + m->verify_data_on(st); +}