Mercurial > hg > graal-jvmci-8
annotate src/share/vm/prims/jvmtiRedefineClassesTrace.hpp @ 23660:b5f3a471e646
Merge.
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 01 Jun 2016 00:11:44 +0200 |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_PRIMS_JVMTIREDEFINECLASSESTRACE_HPP |
26 #define SHARE_VM_PRIMS_JVMTIREDEFINECLASSESTRACE_HPP | |
27 | |
0 | 28 // RedefineClasses tracing support via the TraceRedefineClasses |
29 // option. A bit is assigned to each group of trace messages. | |
30 // Groups of messages are individually selectable. We have to use | |
31 // decimal values on the command line since the command option | |
32 // parsing logic doesn't like non-decimal numerics. The HEX values | |
33 // are used in the actual RC_TRACE() calls for sanity. To achieve | |
34 // the old cumulative behavior, pick the level after the one in | |
35 // which you are interested and subtract one, e.g., 33554431 will | |
36 // print every tracing message. | |
37 // | |
38 // 0x00000000 | 0 - default; no tracing messages | |
39 // 0x00000001 | 1 - name each target class before loading, after | |
40 // loading and after redefinition is completed | |
41 // 0x00000002 | 2 - print info if parsing, linking or | |
42 // verification throws an exception | |
43 // 0x00000004 | 4 - print timer info for the VM operation | |
44 // 0x00000008 | 8 - print subclass counter updates | |
45 // 0x00000010 | 16 - unused | |
46 // 0x00000020 | 32 - unused | |
47 // 0x00000040 | 64 - unused | |
48 // 0x00000080 | 128 - unused | |
49 // 0x00000100 | 256 - previous class weak reference addition | |
50 // 0x00000200 | 512 - previous class weak reference mgmt during | |
51 // class unloading checks (GC) | |
52 // 0x00000400 | 1024 - previous class weak reference mgmt during | |
53 // add previous ops (GC) | |
54 // 0x00000800 | 2048 - previous class breakpoint mgmt | |
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55 // 0x00001000 | 4096 - detect calls to obsolete methods |
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56 // 0x00002000 | 8192 - fail a guarantee() in addition to detection |
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57 // 0x00004000 | 16384 - detect old/obsolete methods in metadata |
0 | 58 // 0x00008000 | 32768 - old/new method matching/add/delete |
59 // 0x00010000 | 65536 - impl details: CP size info | |
60 // 0x00020000 | 131072 - impl details: CP merge pass info | |
61 // 0x00040000 | 262144 - impl details: CP index maps | |
62 // 0x00080000 | 524288 - impl details: modified CP index values | |
63 // 0x00100000 | 1048576 - impl details: vtable updates | |
64 // 0x00200000 | 2097152 - impl details: itable updates | |
65 // 0x00400000 | 4194304 - impl details: constant pool cache updates | |
66 // 0x00800000 | 8388608 - impl details: methodComparator info | |
67 // 0x01000000 | 16777216 - impl details: nmethod evolution info | |
68 // 0x02000000 | 33554432 - impl details: annotation updates | |
69 // 0x04000000 | 67108864 - impl details: StackMapTable updates | |
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70 // 0x08000000 | 134217728 - impl details: OopMapCache updates |
0 | 71 // 0x10000000 | 268435456 - unused |
72 // 0x20000000 | 536870912 - unused | |
73 // 0x40000000 | 1073741824 - unused | |
74 // 0x80000000 | 2147483648 - unused | |
75 | |
76 // Macro for checking if TraceRedefineClasses has a specific bit | |
77 // enabled. Returns true if the bit specified by level is set. | |
78 #define RC_TRACE_ENABLED(level) ((TraceRedefineClasses & level) != 0) | |
79 | |
80 // Macro for checking if TraceRedefineClasses has one or more bits | |
81 // set in a range of bit values. Returns true if one or more bits | |
82 // is set in the range from low..high inclusive. Assumes that low | |
83 // and high are single bit values. | |
84 // | |
85 // ((high << 1) - 1) | |
86 // Yields a mask that removes bits greater than the high bit value. | |
87 // This algorithm doesn't work with highest bit. | |
88 // ~(low - 1) | |
89 // Yields a mask that removes bits lower than the low bit value. | |
90 #define RC_TRACE_IN_RANGE(low, high) \ | |
91 (((TraceRedefineClasses & ((high << 1) - 1)) & ~(low - 1)) != 0) | |
92 | |
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93 // Note: The ResourceMark is to cleanup resource allocated args. |
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94 // The "do {...} while (0)" is so we can use semi-colon at end of RC_TRACE(). |
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95 #define RC_TRACE(level, args) do { \ |
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96 if (RC_TRACE_ENABLED(level)) { \ |
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97 ResourceMark rm; \ |
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98 tty->print("RedefineClasses-0x%x: ", level); \ |
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99 tty->print_cr args; \ |
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100 } \ |
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101 } while (0) |
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102 |
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103 #define RC_TRACE_NO_CR(level, args) do { \ |
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104 if (RC_TRACE_ENABLED(level)) { \ |
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105 ResourceMark rm; \ |
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106 tty->print("RedefineClasses-0x%x: ", level); \ |
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107 tty->print args; \ |
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108 } \ |
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109 } while (0) |
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110 |
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111 #define RC_TRACE_WITH_THREAD(level, thread, args) do { \ |
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112 if (RC_TRACE_ENABLED(level)) { \ |
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113 ResourceMark rm(thread); \ |
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114 tty->print("RedefineClasses-0x%x: ", level); \ |
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115 tty->print_cr args; \ |
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116 } \ |
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117 } while (0) |
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118 |
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119 #define RC_TRACE_MESG(args) do { \ |
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120 ResourceMark rm; \ |
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121 tty->print("RedefineClasses: "); \ |
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122 tty->print_cr args; \ |
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123 } while (0) |
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124 |
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125 // Timer support macros. Only do timer operations if timer tracing is enabled. |
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126 // The "do {...} while (0)" is so we can use semi-colon at end of the macro. |
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127 #define RC_TIMER_START(t) do { \ |
0 | 128 if (RC_TRACE_ENABLED(0x00000004)) { \ |
129 t.start(); \ | |
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130 } \ |
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131 } while (0) |
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132 #define RC_TIMER_STOP(t) do { \ |
0 | 133 if (RC_TRACE_ENABLED(0x00000004)) { \ |
134 t.stop(); \ | |
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135 } \ |
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136 } while (0) |
1972 | 137 |
138 #endif // SHARE_VM_PRIMS_JVMTIREDEFINECLASSESTRACE_HPP |