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/*
* Copyright (c) 2000, 2008, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.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(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(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);
}
#endif //PRODUCT
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);
}
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);
}
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