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10405
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1 /*
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_TRACE_TRACESTREAM_HPP
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26 #define SHARE_VM_TRACE_TRACESTREAM_HPP
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27
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28 #include "utilities/macros.hpp"
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29
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30 #if INCLUDE_TRACE
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31
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32 #include "oops/klass.hpp"
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33 #include "oops/method.hpp"
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34 #include "oops/symbol.hpp"
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35 #include "utilities/ostream.hpp"
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36
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37 class TraceStream : public StackObj {
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38 private:
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39 outputStream& _st;
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40
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41 public:
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42 TraceStream(outputStream& stream): _st(stream) {}
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43
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44 void print_val(const char* label, u1 val) {
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45 _st.print("%s = "UINT32_FORMAT, label, val);
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46 }
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47
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48 void print_val(const char* label, u2 val) {
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49 _st.print("%s = "UINT32_FORMAT, label, val);
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50 }
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51
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52 void print_val(const char* label, s2 val) {
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53 _st.print("%s = "INT32_FORMAT, label, val);
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54 }
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55
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56 void print_val(const char* label, u4 val) {
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57 _st.print("%s = "UINT32_FORMAT, label, val);
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58 }
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59
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60 void print_val(const char* label, s4 val) {
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61 _st.print("%s = "INT32_FORMAT, label, val);
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62 }
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63
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64 void print_val(const char* label, u8 val) {
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65 _st.print("%s = "UINT64_FORMAT, label, val);
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66 }
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67
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68 void print_val(const char* label, s8 val) {
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69 _st.print("%s = "INT64_FORMAT, label, val);
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70 }
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71
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72 void print_val(const char* label, bool val) {
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73 _st.print("%s = %s", label, val ? "true" : "false");
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74 }
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75
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76 void print_val(const char* label, float val) {
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77 _st.print("%s = %f", label, val);
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78 }
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79
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80 void print_val(const char* label, double val) {
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81 _st.print("%s = %f", label, val);
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82 }
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83
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84 // Caller is machine generated code located in traceEventClasses.hpp
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85 // Event<TraceId>::writeEvent() (pseudocode) contains the
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86 // necessary ResourceMark for the resource allocations below.
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87 // See traceEventClasses.xsl for details.
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88 void print_val(const char* label, const Klass* const val) {
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89 const char* description = "NULL";
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90 if (val != NULL) {
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91 Symbol* name = val->name();
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92 if (name != NULL) {
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93 description = name->as_C_string();
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94 }
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95 }
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96 _st.print("%s = %s", label, description);
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97 }
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98
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99 // Caller is machine generated code located in traceEventClasses.hpp
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100 // Event<TraceId>::writeEvent() (pseudocode) contains the
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101 // necessary ResourceMark for the resource allocations below.
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102 // See traceEventClasses.xsl for details.
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103 void print_val(const char* label, const Method* const val) {
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104 const char* description = "NULL";
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105 if (val != NULL) {
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106 description = val->name_and_sig_as_C_string();
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107 }
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108 _st.print("%s = %s", label, description);
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109 }
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110
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111 void print_val(const char* label, const char* val) {
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112 _st.print("%s = '%s'", label, val);
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113 }
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114
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115 void print(const char* val) {
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116 _st.print(val);
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117 }
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118 };
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119
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120 #endif /* INCLUDE_TRACE */
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121 #endif /* SHARE_VM_TRACE_TRACESTREAM_HPP */
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