1 /*
2 * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2008, 2009, 2010 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 class ZeroEntry {
27 public:
28 ZeroEntry() {
29 ShouldNotCallThis();
30 }
31
32 private:
33 address _entry_point;
34
35 public:
36 address entry_point() const {
37 return _entry_point;
38 }
39 void set_entry_point(address entry_point) {
40 _entry_point = entry_point;
41 }
42
43 private:
44 typedef int (*NormalEntryFunc)(methodOop method,
45 intptr_t base_pc,
55 ((NormalEntryFunc) entry_point())(method, (intptr_t) this, THREAD),
56 THREAD);
57 }
58 void invoke_osr(methodOop method, address osr_buf, TRAPS) const {
59 maybe_deoptimize(
60 ((OSREntryFunc) entry_point())(method, osr_buf, (intptr_t) this, THREAD),
61 THREAD);
62 }
63
64 private:
65 static void maybe_deoptimize(int deoptimized_frames, TRAPS) {
66 if (deoptimized_frames)
67 CppInterpreter::main_loop(deoptimized_frames - 1, THREAD);
68 }
69
70 public:
71 static ByteSize entry_point_offset() {
72 return byte_offset_of(ZeroEntry, _entry_point);
73 }
74 };
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1 /*
2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2008, 2009, 2010 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_ZERO_VM_ENTRY_ZERO_HPP
27 #define CPU_ZERO_VM_ENTRY_ZERO_HPP
28
29 class ZeroEntry {
30 public:
31 ZeroEntry() {
32 ShouldNotCallThis();
33 }
34
35 private:
36 address _entry_point;
37
38 public:
39 address entry_point() const {
40 return _entry_point;
41 }
42 void set_entry_point(address entry_point) {
43 _entry_point = entry_point;
44 }
45
46 private:
47 typedef int (*NormalEntryFunc)(methodOop method,
48 intptr_t base_pc,
58 ((NormalEntryFunc) entry_point())(method, (intptr_t) this, THREAD),
59 THREAD);
60 }
61 void invoke_osr(methodOop method, address osr_buf, TRAPS) const {
62 maybe_deoptimize(
63 ((OSREntryFunc) entry_point())(method, osr_buf, (intptr_t) this, THREAD),
64 THREAD);
65 }
66
67 private:
68 static void maybe_deoptimize(int deoptimized_frames, TRAPS) {
69 if (deoptimized_frames)
70 CppInterpreter::main_loop(deoptimized_frames - 1, THREAD);
71 }
72
73 public:
74 static ByteSize entry_point_offset() {
75 return byte_offset_of(ZeroEntry, _entry_point);
76 }
77 };
78
79 #endif // CPU_ZERO_VM_ENTRY_ZERO_HPP
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