src/cpu/zero/vm/entry_zero.hpp

Wed, 27 Apr 2016 01:25:04 +0800

author
aoqi
date
Wed, 27 Apr 2016 01:25:04 +0800
changeset 0
f90c822e73f8
child 6876
710a3c8b516e
permissions
-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * Copyright 2008, 2009, 2010 Red Hat, Inc.
aoqi@0 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 5 *
aoqi@0 6 * This code is free software; you can redistribute it and/or modify it
aoqi@0 7 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 8 * published by the Free Software Foundation.
aoqi@0 9 *
aoqi@0 10 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 13 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 14 * accompanied this code).
aoqi@0 15 *
aoqi@0 16 * You should have received a copy of the GNU General Public License version
aoqi@0 17 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 19 *
aoqi@0 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 21 * or visit www.oracle.com if you need additional information or have any
aoqi@0 22 * questions.
aoqi@0 23 *
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 #ifndef CPU_ZERO_VM_ENTRY_ZERO_HPP
aoqi@0 27 #define CPU_ZERO_VM_ENTRY_ZERO_HPP
aoqi@0 28
aoqi@0 29 class ZeroEntry {
aoqi@0 30 public:
aoqi@0 31 ZeroEntry() {
aoqi@0 32 ShouldNotCallThis();
aoqi@0 33 }
aoqi@0 34
aoqi@0 35 private:
aoqi@0 36 address _entry_point;
aoqi@0 37
aoqi@0 38 public:
aoqi@0 39 address entry_point() const {
aoqi@0 40 return _entry_point;
aoqi@0 41 }
aoqi@0 42 void set_entry_point(address entry_point) {
aoqi@0 43 _entry_point = entry_point;
aoqi@0 44 }
aoqi@0 45
aoqi@0 46 private:
aoqi@0 47 typedef int (*NormalEntryFunc)(Method* method,
aoqi@0 48 intptr_t base_pc,
aoqi@0 49 TRAPS);
aoqi@0 50 typedef int (*OSREntryFunc)(Method* method,
aoqi@0 51 address osr_buf,
aoqi@0 52 intptr_t base_pc,
aoqi@0 53 TRAPS);
aoqi@0 54
aoqi@0 55 public:
aoqi@0 56 void invoke(Method* method, TRAPS) const {
aoqi@0 57 maybe_deoptimize(
aoqi@0 58 ((NormalEntryFunc) entry_point())(method, (intptr_t) this, THREAD),
aoqi@0 59 THREAD);
aoqi@0 60 }
aoqi@0 61 void invoke_osr(Method* method, address osr_buf, TRAPS) const {
aoqi@0 62 maybe_deoptimize(
aoqi@0 63 ((OSREntryFunc) entry_point())(method, osr_buf, (intptr_t) this, THREAD),
aoqi@0 64 THREAD);
aoqi@0 65 }
aoqi@0 66
aoqi@0 67 private:
aoqi@0 68 static void maybe_deoptimize(int deoptimized_frames, TRAPS) {
aoqi@0 69 if (deoptimized_frames)
aoqi@0 70 CppInterpreter::main_loop(deoptimized_frames - 1, THREAD);
aoqi@0 71 }
aoqi@0 72
aoqi@0 73 public:
aoqi@0 74 static ByteSize entry_point_offset() {
aoqi@0 75 return byte_offset_of(ZeroEntry, _entry_point);
aoqi@0 76 }
aoqi@0 77 };
aoqi@0 78
aoqi@0 79 #endif // CPU_ZERO_VM_ENTRY_ZERO_HPP

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