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rev 1081 : imported patch indy-cleanup-6893081.patch
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--- old/src/share/vm/code/pcDesc.hpp
+++ new/src/share/vm/code/pcDesc.hpp
1 1 /*
2 2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
3 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 4 *
5 5 * This code is free software; you can redistribute it and/or modify it
6 6 * under the terms of the GNU General Public License version 2 only, as
7 7 * published by the Free Software Foundation.
8 8 *
9 9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 12 * version 2 for more details (a copy is included in the LICENSE file that
13 13 * accompanied this code).
14 14 *
15 15 * You should have received a copy of the GNU General Public License version
16 16 * 2 along with this work; if not, write to the Free Software Foundation,
17 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 18 *
19 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 21 * have any questions.
22 22 *
23 23 */
24 24
25 25 // PcDescs map a physical PC (given as offset from start of nmethod) to
26 26 // the corresponding source scope and byte code index.
27 27
28 28 class nmethod;
29 29
30 30 class PcDesc VALUE_OBJ_CLASS_SPEC {
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31 31 friend class VMStructs;
32 32 private:
33 33 int _pc_offset; // offset from start of nmethod
34 34 int _scope_decode_offset; // offset for scope in nmethod
35 35 int _obj_decode_offset;
36 36
37 37 union PcDescFlags {
38 38 int word;
39 39 struct {
40 40 unsigned int reexecute: 1;
41 + unsigned int is_method_handle_invoke: 1;
41 42 } bits;
42 43 bool operator ==(const PcDescFlags& other) { return word == other.word; }
43 44 } _flags;
44 45
45 46 public:
46 47 int pc_offset() const { return _pc_offset; }
47 48 int scope_decode_offset() const { return _scope_decode_offset; }
48 49 int obj_decode_offset() const { return _obj_decode_offset; }
49 50
50 51 void set_pc_offset(int x) { _pc_offset = x; }
51 52 void set_scope_decode_offset(int x) { _scope_decode_offset = x; }
52 53 void set_obj_decode_offset(int x) { _obj_decode_offset = x; }
53 54
54 55 // Constructor (only used for static in nmethod.cpp)
55 56 // Also used by ScopeDesc::sender()]
56 57 PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset);
57 58
58 59 enum {
59 60 // upper and lower exclusive limits real offsets:
60 61 lower_offset_limit = -1,
61 62 upper_offset_limit = (unsigned int)-1 >> 1
62 63 };
63 64
64 65 // Flags
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65 66 bool should_reexecute() const { return _flags.bits.reexecute; }
66 67 void set_should_reexecute(bool z) { _flags.bits.reexecute = z; }
67 68
68 69 // Does pd refer to the same information as pd?
69 70 bool is_same_info(const PcDesc* pd) {
70 71 return _scope_decode_offset == pd->_scope_decode_offset &&
71 72 _obj_decode_offset == pd->_obj_decode_offset &&
72 73 _flags == pd->_flags;
73 74 }
74 75
76 + bool is_method_handle_invoke() const { return _flags.bits.is_method_handle_invoke; }
77 + void set_is_method_handle_invoke(bool z) { _flags.bits.is_method_handle_invoke = z; }
78 +
75 79 // Returns the real pc
76 80 address real_pc(const nmethod* code) const;
77 81
78 82 void print(nmethod* code);
79 83 bool verify(nmethod* code);
80 84 };
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