1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/cpu/zero/vm/entry_zero.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,79 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2008, 2009, 2010 Red Hat, Inc.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +#ifndef CPU_ZERO_VM_ENTRY_ZERO_HPP
1.30 +#define CPU_ZERO_VM_ENTRY_ZERO_HPP
1.31 +
1.32 +class ZeroEntry {
1.33 + public:
1.34 + ZeroEntry() {
1.35 + ShouldNotCallThis();
1.36 + }
1.37 +
1.38 + private:
1.39 + address _entry_point;
1.40 +
1.41 + public:
1.42 + address entry_point() const {
1.43 + return _entry_point;
1.44 + }
1.45 + void set_entry_point(address entry_point) {
1.46 + _entry_point = entry_point;
1.47 + }
1.48 +
1.49 + private:
1.50 + typedef int (*NormalEntryFunc)(Method* method,
1.51 + intptr_t base_pc,
1.52 + TRAPS);
1.53 + typedef int (*OSREntryFunc)(Method* method,
1.54 + address osr_buf,
1.55 + intptr_t base_pc,
1.56 + TRAPS);
1.57 +
1.58 + public:
1.59 + void invoke(Method* method, TRAPS) const {
1.60 + maybe_deoptimize(
1.61 + ((NormalEntryFunc) entry_point())(method, (intptr_t) this, THREAD),
1.62 + THREAD);
1.63 + }
1.64 + void invoke_osr(Method* method, address osr_buf, TRAPS) const {
1.65 + maybe_deoptimize(
1.66 + ((OSREntryFunc) entry_point())(method, osr_buf, (intptr_t) this, THREAD),
1.67 + THREAD);
1.68 + }
1.69 +
1.70 + private:
1.71 + static void maybe_deoptimize(int deoptimized_frames, TRAPS) {
1.72 + if (deoptimized_frames)
1.73 + CppInterpreter::main_loop(deoptimized_frames - 1, THREAD);
1.74 + }
1.75 +
1.76 + public:
1.77 + static ByteSize entry_point_offset() {
1.78 + return byte_offset_of(ZeroEntry, _entry_point);
1.79 + }
1.80 +};
1.81 +
1.82 +#endif // CPU_ZERO_VM_ENTRY_ZERO_HPP
