6951784: Zero deoptimizer changes
Summary: The way Zero currently handles deoptimization can lead to methods being freed while they are still being executed.
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
/*
* Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 2007, 2008, 2009, 2010 Red Hat, Inc.
* 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/_interpreter_zero.cpp.incl"
address AbstractInterpreterGenerator::generate_slow_signature_handler() {
_masm->advance(1);
return (address) InterpreterRuntime::slow_signature_handler;
}
address InterpreterGenerator::generate_math_entry(
AbstractInterpreter::MethodKind kind) {
if (!InlineIntrinsics)
return NULL;
Unimplemented();
}
address InterpreterGenerator::generate_abstract_entry() {
return ShouldNotCallThisEntry();
}
address InterpreterGenerator::generate_method_handle_entry() {
return ShouldNotCallThisEntry();
}
bool AbstractInterpreter::can_be_compiled(methodHandle m) {
return true;
}
int AbstractInterpreter::size_activation(methodOop method,
int tempcount,
int popframe_extra_args,
int moncount,
int callee_param_count,
int callee_locals,
bool is_top_frame) {
return layout_activation(method,
tempcount,
popframe_extra_args,
moncount,
callee_param_count,
callee_locals,
(frame*) NULL,
(frame*) NULL,
is_top_frame);
}
void Deoptimization::unwind_callee_save_values(frame* f,
vframeArray* vframe_array) {
}