/*
* Copyright ( c ) 2003 , 2020 , Oracle and / or its affiliates . All rights reserved .
* Copyright 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 Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*
*/
#ifndef CPU_ZERO_ENTRY_ZERO_HPP
#define CPU_ZERO_ENTRY_ZERO_HPP
#include "interpreter/zero/zeroInterpreter.hpp"
class ZeroEntry {
public :
ZeroEntry() {
ShouldNotCallThis();
}
private :
address _entry_point;
public :
address entry_point() const {
return _entry_point;
}
void set_entry_point(address entry_point) {
_entry_point = entry_point;
}
private :
typedef int (*NormalEntryFunc)(Method* method,
intptr_t base_pc,
TRAPS);
typedef int (*OSREntryFunc)(Method* method,
address osr_buf,
intptr_t base_pc,
TRAPS);
public :
void invoke(Method* method, TRAPS) const {
maybe_deoptimize(
((NormalEntryFunc) entry_point())(method, (intptr_t) this , THREAD),
THREAD);
}
void invoke_osr(Method* method, address osr_buf, TRAPS) const {
maybe_deoptimize(
((OSREntryFunc) entry_point())(method, osr_buf, (intptr_t) this , THREAD),
THREAD);
}
private :
static void maybe_deoptimize(int deoptimized_frames, TRAPS) {
if (deoptimized_frames)
ZeroInterpreter::main_loop(deoptimized_frames - 1 , THREAD);
}
public :
static ByteSize entry_point_offset() {
return byte_offset_of(ZeroEntry, _entry_point);
}
};
#endif // CPU_ZERO_ENTRY_ZERO_HPP
Messung V0.5 in Prozent C=93 H=95 G=93
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