Mercurial > hg > truffle
annotate src/os/solaris/vm/dtraceJSDT_solaris.cpp @ 1497:96d554193f72
6944822: Fix for 6938627 exposes problem with hard-coded buffer sizes
Summary: Make tmpdir buffer sizes MAX_PATH+1
Reviewed-by: dholmes, coleenp
Contributed-by: andreas.kohn@fredhopper.com
author | coleenp |
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date | Mon, 19 Apr 2010 18:58:31 -0400 |
parents | d1605aabd0a1 |
children | c18cbe5936b8 |
rev | line source |
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1 /* |
196 | 2 * Copyright 2005-2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 #include "incls/_precompiled.incl" |
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26 #include "incls/_dtraceJSDT_solaris.cpp.incl" |
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27 |
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28 #ifdef HAVE_DTRACE_H |
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29 |
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30 #include <sys/types.h> |
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31 #include <sys/stat.h> |
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32 #include <fcntl.h> |
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33 #include <unistd.h> |
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34 #include <dtrace.h> |
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35 |
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36 static const char* devname = "/dev/dtrace/helper"; |
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37 static const char* olddevname = "/devices/pseudo/dtrace@0:helper"; |
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38 |
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39 static const char* string_sig = "uintptr_t"; |
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40 static const char* int_sig = "long"; |
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41 static const char* long_sig = "long long"; |
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42 |
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43 static void printDOFHelper(dof_helper_t* helper); |
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44 |
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45 static int dofhelper_open() { |
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46 int fd; |
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47 if ((fd = open64(devname, O_RDWR)) < 0) { |
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48 // Optimize next calls |
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49 devname = olddevname; |
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50 if ((fd = open64(devname, O_RDWR)) < 0) { |
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51 return -1; |
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52 } |
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53 } |
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54 return fd; |
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55 } |
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56 |
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57 static jint dof_register(jstring module, uint8_t* dof, void* modaddr) { |
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58 int probe; |
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59 dof_helper_t dh; |
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60 int fd; |
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61 |
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62 memset(&dh, 0, sizeof(dh)); |
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63 |
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64 char* module_name = java_lang_String::as_utf8_string( |
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65 JNIHandles::resolve_non_null(module)); |
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66 jio_snprintf(dh.dofhp_mod, sizeof(dh.dofhp_mod), "%s", module_name); |
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67 dh.dofhp_dof = (uint64_t)dof; |
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68 dh.dofhp_addr = (uint64_t)modaddr; |
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69 |
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70 fd = dofhelper_open(); |
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71 if (fd < 0) |
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72 return -1; |
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73 probe = ioctl(fd, DTRACEHIOC_ADDDOF, &dh); |
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74 close(fd); |
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75 if (PrintDTraceDOF) { |
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76 printDOFHelper(&dh); |
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77 tty->print_cr("DOF helper id = %d", probe); |
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78 } |
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79 return probe; |
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80 } |
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81 |
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82 int DTraceJSDT::pd_activate( |
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83 void* moduleBaseAddress, jstring module, |
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84 jint providers_count, JVM_DTraceProvider* providers) { |
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85 |
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86 // We need sections: |
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87 // (1) STRTAB |
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88 // ( |
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89 // (2) PROVIDER |
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90 // (3) PROBES |
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91 // (4) PROBOFFS |
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92 // (5) PROBARGS |
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93 // ) * Number of Providers |
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94 |
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95 // Type of sections we create |
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96 enum { |
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97 STRTAB = 0, |
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98 PROVIDERS = 1, |
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99 PROBES = 2, |
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100 PROBE_OFFSETS = 3, |
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101 ARG_OFFSETS = 4, |
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102 NUM_SECTIONS = 5 |
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103 }; |
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104 |
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105 static int alignment_for[NUM_SECTIONS] = { 1, 4, 8, 4, 1 }; |
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106 |
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107 ResourceMark rm; |
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108 |
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109 uint32_t num_sections = 1 + 4 * providers_count; |
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110 uint32_t offset = sizeof(dof_hdr_t) + (num_sections * sizeof(dof_sec_t)); |
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111 uint32_t* secoffs = NEW_RESOURCE_ARRAY(uint32_t, num_sections); |
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112 uint32_t* secsize = NEW_RESOURCE_ARRAY(uint32_t, num_sections); |
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113 |
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114 // Store offsets of all strings here in such order: |
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115 // zero-string (always 0) |
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116 // provider1-name |
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117 // probe1-function |
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118 // probe1-name |
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119 // arg-1 |
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120 // arg-2 |
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121 // ... |
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122 // probe2-function |
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123 // probe2-name |
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124 // arg-1 |
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125 // arg-2 |
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126 // provider2-name |
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127 // ... |
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128 |
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129 uint32_t strcount = 0; |
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130 // Count the number of strings we'll need |
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131 for(int prvc = 0; prvc < providers_count; ++prvc) { |
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132 JVM_DTraceProvider* provider = &providers[prvc]; |
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133 // Provider name |
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134 ++strcount; |
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135 for(int prbc = 0; prbc < provider->probe_count; ++prbc) { |
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136 JVM_DTraceProbe* p = &(provider->probes[prbc]); |
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137 symbolOop sig = JNIHandles::resolve_jmethod_id(p->method)->signature(); |
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138 // function + name + one per argument |
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139 strcount += 2 + ArgumentCount(sig).size(); |
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140 } |
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141 } |
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142 |
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143 // Create place for string offsets |
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144 uint32_t* stroffs = NEW_RESOURCE_ARRAY(uint32_t, strcount + 1); |
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145 uint32_t string_index = 0; |
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146 uint32_t curstr = 0; |
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147 |
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148 // First we need an empty string: "" |
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149 stroffs[curstr++] = string_index; |
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150 string_index += strlen("") + 1; |
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151 |
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152 for(int prvc = 0; prvc < providers_count; ++prvc) { |
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153 JVM_DTraceProvider* provider = &providers[prvc]; |
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154 char* provider_name = java_lang_String::as_utf8_string( |
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155 JNIHandles::resolve_non_null(provider->name)); |
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156 stroffs[curstr++] = string_index; |
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157 string_index += strlen(provider_name) + 1; |
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158 |
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159 // All probes |
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160 for(int prbc = 0; prbc < provider->probe_count; ++prbc) { |
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161 JVM_DTraceProbe* p = &(provider->probes[prbc]); |
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162 |
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163 char* function = java_lang_String::as_utf8_string( |
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164 JNIHandles::resolve_non_null(p->function)); |
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165 stroffs[curstr++] = string_index; |
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166 string_index += strlen(function) + 1; |
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167 |
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168 char* name = java_lang_String::as_utf8_string( |
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169 JNIHandles::resolve_non_null(p->name)); |
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170 stroffs[curstr++] = string_index; |
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171 string_index += strlen(name) + 1; |
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172 |
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173 symbolOop sig = JNIHandles::resolve_jmethod_id(p->method)->signature(); |
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174 SignatureStream ss(sig); |
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175 for ( ; !ss.at_return_type(); ss.next()) { |
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176 BasicType bt = ss.type(); |
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177 const char* t = NULL; |
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178 if (bt == T_OBJECT && |
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179 ss.as_symbol_or_null() == vmSymbols::java_lang_String()) { |
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180 t = string_sig; |
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181 } else if (bt == T_LONG) { |
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182 t = long_sig; |
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183 } else { |
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184 t = int_sig; |
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185 } |
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186 stroffs[curstr++] = string_index; |
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187 string_index += strlen(t) + 1; |
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188 } |
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189 } |
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190 } |
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191 secoffs[STRTAB] = offset; |
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192 secsize[STRTAB] = string_index; |
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193 offset += string_index; |
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194 |
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195 // Calculate the size of the rest |
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196 for(int prvc = 0; prvc < providers_count; ++prvc) { |
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197 JVM_DTraceProvider* provider = &providers[prvc]; |
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198 size_t provider_sec = PROVIDERS + prvc * 4; |
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199 size_t probe_sec = PROBES + prvc * 4; |
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200 size_t probeoffs_sec = PROBE_OFFSETS + prvc * 4; |
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201 size_t argoffs_sec = ARG_OFFSETS + prvc * 4; |
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202 |
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203 // Allocate space for the provider data struction |
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204 secoffs[provider_sec] = align_size_up(offset, alignment_for[PROVIDERS]); |
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205 secsize[provider_sec] = sizeof(dof_provider_t); |
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206 offset = secoffs[provider_sec] + secsize[provider_sec]; |
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207 |
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208 // Allocate space for all the probes |
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209 secoffs[probe_sec] = align_size_up(offset, alignment_for[PROBES]); |
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210 secsize[probe_sec] = sizeof(dof_probe_t) * provider->probe_count; |
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211 offset = secoffs[probe_sec] + secsize[probe_sec]; |
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212 |
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213 // Allocate space for the probe offsets |
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214 secoffs[probeoffs_sec] = align_size_up(offset, alignment_for[PROBE_OFFSETS]); |
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215 secsize[probeoffs_sec] = sizeof(uint32_t) * provider->probe_count; |
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216 offset = secoffs[probeoffs_sec] + secsize[probeoffs_sec]; |
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217 |
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218 // We need number of arguments argoffs |
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219 uint32_t argscount = 0; |
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220 for(int prbc = 0; prbc < provider->probe_count; ++prbc) { |
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221 JVM_DTraceProbe* p = &(provider->probes[prbc]); |
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222 symbolOop sig = JNIHandles::resolve_jmethod_id(p->method)->signature(); |
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223 argscount += ArgumentCount(sig).size(); |
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224 } |
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225 secoffs[argoffs_sec] = align_size_up(offset, alignment_for[ARG_OFFSETS]); |
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226 secsize[argoffs_sec] = sizeof(uint8_t) * argscount; |
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227 offset = secoffs[argoffs_sec] + secsize[argoffs_sec]; |
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228 } |
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229 |
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230 uint32_t size = offset; |
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231 |
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232 uint8_t* dof = NEW_RESOURCE_ARRAY(uint8_t, size); |
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233 if (!dof) { |
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234 return -1; |
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235 } |
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236 memset((void*)dof, 0, size); |
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237 |
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238 // Fill memory with proper values |
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239 dof_hdr_t* hdr = (dof_hdr_t*)dof; |
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240 hdr->dofh_ident[DOF_ID_MAG0] = DOF_MAG_MAG0; |
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241 hdr->dofh_ident[DOF_ID_MAG1] = DOF_MAG_MAG1; |
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242 hdr->dofh_ident[DOF_ID_MAG2] = DOF_MAG_MAG2; |
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243 hdr->dofh_ident[DOF_ID_MAG3] = DOF_MAG_MAG3; |
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244 hdr->dofh_ident[DOF_ID_MODEL] = DOF_MODEL_NATIVE; // No variants |
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245 hdr->dofh_ident[DOF_ID_ENCODING] = DOF_ENCODE_NATIVE; // No variants |
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246 hdr->dofh_ident[DOF_ID_VERSION] = DOF_VERSION_1; // No variants |
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247 hdr->dofh_ident[DOF_ID_DIFVERS] = DIF_VERSION_2; // No variants |
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248 // all other fields of ident to zero |
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249 |
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250 hdr->dofh_flags = 0; |
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251 hdr->dofh_hdrsize = sizeof(dof_hdr_t); |
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252 hdr->dofh_secsize = sizeof(dof_sec_t); |
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253 hdr->dofh_secnum = num_sections; |
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254 hdr->dofh_secoff = sizeof(dof_hdr_t); |
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255 hdr->dofh_loadsz = size; |
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256 hdr->dofh_filesz = size; |
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257 |
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258 // First section: STRTAB |
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259 dof_sec_t* sec = (dof_sec_t*)(dof + sizeof(dof_hdr_t)); |
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260 sec->dofs_type = DOF_SECT_STRTAB; |
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261 sec->dofs_align = alignment_for[STRTAB]; |
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262 sec->dofs_flags = DOF_SECF_LOAD; |
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263 sec->dofs_entsize = 0; |
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264 sec->dofs_offset = secoffs[STRTAB]; |
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265 sec->dofs_size = secsize[STRTAB]; |
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266 // Make data for this section |
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267 char* str = (char*)(dof + sec->dofs_offset); |
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268 |
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269 *str = 0; str += 1; // "" |
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270 |
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271 // Run through all strings again |
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272 for(int prvc = 0; prvc < providers_count; ++prvc) { |
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273 JVM_DTraceProvider* provider = &providers[prvc]; |
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274 char* provider_name = java_lang_String::as_utf8_string( |
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275 JNIHandles::resolve_non_null(provider->name)); |
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276 strcpy(str, provider_name); |
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277 str += strlen(provider_name) + 1; |
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278 |
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279 // All probes |
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280 for(int prbc = 0; prbc < provider->probe_count; ++prbc) { |
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281 JVM_DTraceProbe* p = &(provider->probes[prbc]); |
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282 |
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283 char* function = java_lang_String::as_utf8_string( |
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284 JNIHandles::resolve_non_null(p->function)); |
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285 strcpy(str, function); |
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286 str += strlen(str) + 1; |
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287 |
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288 char* name = java_lang_String::as_utf8_string( |
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289 JNIHandles::resolve_non_null(p->name)); |
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290 strcpy(str, name); |
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291 str += strlen(name) + 1; |
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292 |
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293 symbolOop sig = JNIHandles::resolve_jmethod_id(p->method)->signature(); |
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294 SignatureStream ss(sig); |
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295 for ( ; !ss.at_return_type(); ss.next()) { |
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296 BasicType bt = ss.type(); |
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297 const char* t; |
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298 if (bt == T_OBJECT && |
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299 ss.as_symbol_or_null() == vmSymbols::java_lang_String()) { |
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300 t = string_sig; |
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301 } else if (bt == T_LONG) { |
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302 t = long_sig; |
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303 } else { |
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304 t = int_sig; |
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305 } |
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306 strcpy(str, t); |
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307 str += strlen(t) + 1; |
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308 } |
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309 } |
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310 } |
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311 |
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312 curstr = 1; |
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313 for(int prvc = 0; prvc < providers_count; ++prvc) { |
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314 JVM_DTraceProvider* provider = &providers[prvc]; |
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315 size_t provider_sec = PROVIDERS + prvc * 4; |
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316 size_t probe_sec = PROBES + prvc * 4; |
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317 size_t probeoffs_sec = PROBE_OFFSETS + prvc * 4; |
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318 size_t argoffs_sec = ARG_OFFSETS + prvc * 4; |
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319 |
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320 // PROVIDER /////////////////////////////////////////////////////////////// |
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321 // Section header |
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322 sec = (dof_sec_t*) |
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323 (dof + sizeof(dof_hdr_t) + sizeof(dof_sec_t) * provider_sec); |
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324 sec->dofs_type = DOF_SECT_PROVIDER; |
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325 sec->dofs_align = alignment_for[PROVIDERS]; |
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326 sec->dofs_flags = DOF_SECF_LOAD; |
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327 sec->dofs_entsize = 0; |
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328 sec->dofs_offset = secoffs[provider_sec]; |
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329 sec->dofs_size = secsize[provider_sec]; |
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330 // Make provider decriiption |
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331 dof_provider_t* prv = (dof_provider_t*)(dof + sec->dofs_offset); |
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332 prv->dofpv_strtab = STRTAB; |
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333 prv->dofpv_probes = probe_sec; |
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334 prv->dofpv_prargs = argoffs_sec; |
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335 prv->dofpv_proffs = probeoffs_sec; |
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336 prv->dofpv_name = stroffs[curstr++]; // Index in string table |
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337 prv->dofpv_provattr = DOF_ATTR( |
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338 provider->providerAttributes.nameStability, |
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339 provider->providerAttributes.dataStability, |
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340 provider->providerAttributes.dependencyClass); |
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341 prv->dofpv_modattr = DOF_ATTR( |
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342 provider->moduleAttributes.nameStability, |
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343 provider->moduleAttributes.dataStability, |
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344 provider->moduleAttributes.dependencyClass); |
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345 prv->dofpv_funcattr = DOF_ATTR( |
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346 provider->functionAttributes.nameStability, |
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347 provider->functionAttributes.dataStability, |
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348 provider->functionAttributes.dependencyClass); |
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349 prv->dofpv_nameattr = DOF_ATTR( |
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350 provider->nameAttributes.nameStability, |
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351 provider->nameAttributes.dataStability, |
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352 provider->nameAttributes.dependencyClass); |
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353 prv->dofpv_argsattr = DOF_ATTR( |
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354 provider->argsAttributes.nameStability, |
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355 provider->argsAttributes.dataStability, |
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356 provider->argsAttributes.dependencyClass); |
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357 |
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358 // PROBES ///////////////////////////////////////////////////////////////// |
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359 // Section header |
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360 sec = (dof_sec_t*) |
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361 (dof + sizeof(dof_hdr_t) + sizeof(dof_sec_t) * probe_sec); |
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362 sec->dofs_type = DOF_SECT_PROBES; |
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363 sec->dofs_align = alignment_for[PROBES]; |
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364 sec->dofs_flags = DOF_SECF_LOAD; |
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365 sec->dofs_entsize = sizeof(dof_probe_t); |
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366 sec->dofs_offset = secoffs[probe_sec]; |
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367 sec->dofs_size = secsize[probe_sec]; |
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368 // Make probes descriptions |
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369 uint32_t argsoffs = 0; |
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370 for(int prbc = 0; prbc < provider->probe_count; ++prbc) { |
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371 JVM_DTraceProbe* probe = &(provider->probes[prbc]); |
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372 methodOop m = JNIHandles::resolve_jmethod_id(probe->method); |
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373 int arg_count = ArgumentCount(m->signature()).size(); |
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374 assert(m->code() != NULL, "must have an nmethod"); |
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375 |
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376 dof_probe_t* prb = |
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377 (dof_probe_t*)(dof + sec->dofs_offset + prbc * sizeof(dof_probe_t)); |
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378 |
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379 prb->dofpr_addr = (uint64_t)m->code()->entry_point(); |
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380 prb->dofpr_func = stroffs[curstr++]; // Index in string table |
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381 prb->dofpr_name = stroffs[curstr++]; // Index in string table |
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382 prb->dofpr_nargv = stroffs[curstr ]; // Index in string table |
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383 // We spent siglen strings here |
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384 curstr += arg_count; |
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385 prb->dofpr_xargv = prb->dofpr_nargv; // Same bunch of strings |
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386 prb->dofpr_argidx = argsoffs; |
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387 prb->dofpr_offidx = prbc; |
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388 prb->dofpr_nargc = arg_count; |
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389 prb->dofpr_xargc = arg_count; |
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390 prb->dofpr_noffs = 1; // Number of offsets |
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391 // Next bunch of offsets |
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392 argsoffs += arg_count; |
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393 } |
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394 |
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395 // PROFFS ///////////////////////////////////////////////////////////////// |
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396 // Section header |
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397 sec = (dof_sec_t*) |
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398 (dof + sizeof(dof_hdr_t) + sizeof(dof_sec_t) * probeoffs_sec); |
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399 sec->dofs_type = DOF_SECT_PROFFS; |
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400 sec->dofs_align = alignment_for[PROBE_OFFSETS]; |
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401 sec->dofs_flags = DOF_SECF_LOAD; |
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402 sec->dofs_entsize = sizeof(uint32_t); |
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403 sec->dofs_offset = secoffs[probeoffs_sec]; |
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404 sec->dofs_size = secsize[probeoffs_sec]; |
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405 // Make offsets |
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406 for (int prbc = 0; prbc < provider->probe_count; ++prbc) { |
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407 uint32_t* pof = |
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408 (uint32_t*)(dof + sec->dofs_offset + sizeof(uint32_t) * prbc); |
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409 JVM_DTraceProbe* probe = &(provider->probes[prbc]); |
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410 methodOop m = JNIHandles::resolve_jmethod_id(probe->method); |
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411 *pof = m->code()->trap_offset(); |
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412 } |
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413 |
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414 // PRARGS ///////////////////////////////////////////////////////////////// |
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415 // Section header |
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416 sec = (dof_sec_t*) |
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417 (dof + sizeof(dof_hdr_t) + sizeof(dof_sec_t) * argoffs_sec); |
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418 sec->dofs_type = DOF_SECT_PRARGS; |
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419 sec->dofs_align = alignment_for[ARG_OFFSETS]; |
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420 sec->dofs_flags = DOF_SECF_LOAD; |
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421 sec->dofs_entsize = sizeof(uint8_t); |
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422 sec->dofs_offset = secoffs[argoffs_sec]; |
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423 sec->dofs_size = secsize[argoffs_sec]; |
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424 // Make arguments |
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425 uint8_t* par = (uint8_t*)(dof + sec->dofs_offset); |
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426 for (int prbc = 0; prbc < provider->probe_count; ++prbc) { |
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427 JVM_DTraceProbe* p = &(provider->probes[prbc]); |
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428 symbolOop sig = JNIHandles::resolve_jmethod_id(p->method)->signature(); |
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429 uint8_t count = (uint8_t)ArgumentCount(sig).size(); |
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430 for (uint8_t i = 0; i < count; ++i) { |
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431 *par++ = i; |
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432 } |
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433 } |
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434 } |
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435 |
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436 // Register module |
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437 return dof_register(module, dof, moduleBaseAddress); |
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438 } |
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439 |
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440 |
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441 void DTraceJSDT::pd_dispose(int handle) { |
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442 int fd; |
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443 if (handle == -1) { |
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444 return; |
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445 } |
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446 fd = dofhelper_open(); |
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447 if (fd < 0) |
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448 return; |
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449 ioctl(fd, DTRACEHIOC_REMOVE, handle); |
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450 close(fd); |
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451 } |
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452 |
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453 jboolean DTraceJSDT::pd_is_supported() { |
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454 int fd = dofhelper_open(); |
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455 if (fd < 0) { |
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456 return false; |
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457 } |
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458 close(fd); |
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459 return true; |
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460 } |
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461 |
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462 static const char* dofSecTypeFor(uint32_t type) { |
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463 switch (type) { |
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464 case 0: return "DOF_SECT_NONE"; |
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465 case 1: return "DOF_SECT_COMMENTS"; |
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466 case 2: return "DOF_SECT_SOURCE"; |
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467 case 3: return "DOF_SECT_ECBDESC"; |
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468 case 4: return "DOF_SECT_PROBEDESC"; |
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469 case 5: return "DOF_SECT_ACTDESC"; |
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470 case 6: return "DOF_SECT_DIFOHDR"; |
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471 case 7: return "DOF_SECT_DIF"; |
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472 case 8: return "DOF_SECT_STRTAB"; |
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473 case 9: return "DOF_SECT_VARTAB"; |
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474 case 10: return "DOF_SECT_RELTAB"; |
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475 case 11: return "DOF_SECT_TYPETAB"; |
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476 case 12: return "DOF_SECT_URELHDR"; |
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477 case 13: return "DOF_SECT_KRELHDR"; |
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478 case 14: return "DOF_SECT_OPTDESC"; |
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479 case 15: return "DOF_SECT_PROVIDER"; |
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480 case 16: return "DOF_SECT_PROBES"; |
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481 case 17: return "DOF_SECT_PRARGS"; |
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482 case 18: return "DOF_SECT_PROFFS"; |
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483 case 19: return "DOF_SECT_INTTAB"; |
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484 case 20: return "DOF_SECT_UTSNAME"; |
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485 case 21: return "DOF_SECT_XLTAB"; |
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486 case 22: return "DOF_SECT_XLMEMBERS"; |
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487 case 23: return "DOF_SECT_XLIMPORT"; |
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488 case 24: return "DOF_SECT_XLEXPORT"; |
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489 case 25: return "DOF_SECT_PREXPORT"; |
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490 case 26: return "DOF_SECT_PRENOFFS"; |
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491 default: return "<unknown>"; |
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492 } |
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493 } |
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494 |
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495 static void printDOFStringTabSec(void* dof, dof_sec_t* sec) { |
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496 size_t tab = sec->dofs_offset; |
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497 size_t limit = sec->dofs_size; |
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498 tty->print_cr("// String Table:"); |
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499 for (size_t idx = 0; idx < limit; /*empty*/) { |
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500 char* str = ((char*)dof) + tab + idx; |
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501 tty->print_cr("// [0x%x + 0x%x] '%s'", tab, idx, str); |
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502 idx += strlen(str) + 1; |
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503 } |
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504 } |
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505 |
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506 static void printDOFProviderSec(void* dof, dof_sec_t* sec) { |
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507 dof_provider_t* prov = (dof_provider_t*)((char*)dof + sec->dofs_offset); |
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508 tty->print_cr("// dof_provider_t {"); |
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509 tty->print_cr("// dofpv_strtab = %d", prov->dofpv_strtab); |
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510 tty->print_cr("// dofpv_probes = %d", prov->dofpv_probes); |
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511 tty->print_cr("// dofpv_prargs = %d", prov->dofpv_prargs); |
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512 tty->print_cr("// dofpv_proffs = %d", prov->dofpv_proffs); |
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513 tty->print_cr("// dofpv_name = 0x%x", prov->dofpv_name); |
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514 tty->print_cr("// dofpv_provattr = 0x%08x", prov->dofpv_provattr); |
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515 tty->print_cr("// dofpv_modattr = 0x%08x", prov->dofpv_modattr); |
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516 tty->print_cr("// dofpv_funcattr = 0x%08x", prov->dofpv_funcattr); |
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517 tty->print_cr("// dofpv_nameattr = 0x%08x", prov->dofpv_nameattr); |
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518 tty->print_cr("// dofpv_argsattr = 0x%08x", prov->dofpv_argsattr); |
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519 tty->print_cr("// }"); |
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520 } |
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521 |
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522 static void printDOFProbesSec(void* dof, dof_sec_t* sec) { |
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523 size_t idx = sec->dofs_offset; |
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524 size_t limit = idx + sec->dofs_size; |
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525 for (size_t idx = sec->dofs_offset; idx < limit; idx += sec->dofs_entsize) { |
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526 dof_probe_t* prb = (dof_probe_t*)((char*)dof + idx); |
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527 tty->print_cr("// dof_probe_t {"); |
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528 tty->print_cr("// dofpr_addr = 0x%016llx", prb->dofpr_addr); |
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529 tty->print_cr("// dofpr_func = 0x%x", prb->dofpr_func); |
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530 tty->print_cr("// dofpr_name = 0x%x", prb->dofpr_name); |
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531 tty->print_cr("// dofpr_nargv = 0x%x", prb->dofpr_nargv); |
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532 tty->print_cr("// dofpr_xargv = 0x%x", prb->dofpr_xargv); |
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533 tty->print_cr("// dofpr_argidx = 0x%x", prb->dofpr_argidx); |
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534 tty->print_cr("// dofpr_offidx = 0x%x", prb->dofpr_offidx); |
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535 tty->print_cr("// dofpr_nargc = %d", prb->dofpr_nargc); |
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536 tty->print_cr("// dofpr_xargc = %d", prb->dofpr_xargc); |
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537 tty->print_cr("// dofpr_noffs = %d", prb->dofpr_noffs); |
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538 tty->print_cr("// }"); |
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539 } |
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540 } |
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541 |
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542 static void printDOFOffsetsSec(void* dof, dof_sec_t* sec) { |
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543 size_t tab = sec->dofs_offset; |
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544 size_t limit = sec->dofs_size; |
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545 tty->print_cr("// Offsets:"); |
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546 for (size_t idx = 0; idx < limit; idx += sec->dofs_entsize) { |
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547 uint32_t* off = (uint32_t*)((char*)dof + tab + idx); |
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548 tty->print_cr("// [0x%x + 0x%x]: %d", tab, idx, *off); |
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549 } |
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550 } |
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551 |
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552 static void printDOFArgsSec(void* dof, dof_sec_t* sec) { |
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553 size_t tab = sec->dofs_offset; |
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554 size_t limit = sec->dofs_size; |
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555 tty->print_cr("// Arguments:"); |
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556 for (size_t idx = 0; idx < limit; idx += sec->dofs_entsize) { |
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557 uint8_t* arg = (uint8_t*)((char*)dof + tab + idx); |
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558 tty->print_cr("// [0x%x + 0x%x]: %d", tab, idx, *arg); |
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559 } |
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560 } |
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561 |
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562 static void printDOFSection(void* dof, dof_sec_t* sec) { |
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563 tty->print_cr("// dof_sec_t {"); |
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564 tty->print_cr("// dofs_type = 0x%x /* %s */", |
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565 sec->dofs_type, dofSecTypeFor(sec->dofs_type)); |
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566 tty->print_cr("// dofs_align = %d", sec->dofs_align); |
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567 tty->print_cr("// dofs_flags = 0x%x", sec->dofs_flags); |
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568 tty->print_cr("// dofs_entsize = %d", sec->dofs_entsize); |
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569 tty->print_cr("// dofs_offset = 0x%llx", sec->dofs_offset); |
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570 tty->print_cr("// dofs_size = %lld", sec->dofs_size); |
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571 tty->print_cr("// }"); |
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572 switch (sec->dofs_type) { |
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573 case DOF_SECT_STRTAB: printDOFStringTabSec(dof, sec); break; |
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574 case DOF_SECT_PROVIDER: printDOFProviderSec(dof, sec); break; |
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575 case DOF_SECT_PROBES: printDOFProbesSec(dof, sec); break; |
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576 case DOF_SECT_PROFFS: printDOFOffsetsSec(dof, sec); break; |
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577 case DOF_SECT_PRARGS: printDOFArgsSec(dof, sec); break; |
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578 default: tty->print_cr("// <section type not recognized>"); |
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579 } |
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580 } |
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581 |
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582 static void printDOFHeader(dof_hdr_t* hdr) { |
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583 tty->print_cr("// dof_hdr_t {"); |
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584 tty->print_cr("// dofh_ident[DOF_ID_MAG0] = 0x%x", |
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585 hdr->dofh_ident[DOF_ID_MAG0]); |
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586 tty->print_cr("// dofh_ident[DOF_ID_MAG1] = 0x%x", |
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587 hdr->dofh_ident[DOF_ID_MAG1]); |
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588 tty->print_cr("// dofh_ident[DOF_ID_MAG2] = 0x%x", |
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589 hdr->dofh_ident[DOF_ID_MAG2]); |
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590 tty->print_cr("// dofh_ident[DOF_ID_MAG3] = 0x%x", |
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591 hdr->dofh_ident[DOF_ID_MAG3]); |
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592 tty->print_cr("// dofh_ident[DOF_ID_MODEL] = 0x%x", |
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593 hdr->dofh_ident[DOF_ID_MODEL]); |
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594 tty->print_cr("// dofh_ident[DOF_ID_ENCODING] = 0x%x", |
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595 hdr->dofh_ident[DOF_ID_ENCODING]); |
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596 tty->print_cr("// dofh_ident[DOF_ID_VERSION] = 0x%x", |
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597 hdr->dofh_ident[DOF_ID_VERSION]); |
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598 tty->print_cr("// dofh_ident[DOF_ID_DIFVERS] = 0x%x", |
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599 hdr->dofh_ident[DOF_ID_DIFVERS]); |
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600 tty->print_cr("// dofh_flags = 0x%x", hdr->dofh_flags); |
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601 tty->print_cr("// dofh_hdrsize = %d", hdr->dofh_hdrsize); |
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602 tty->print_cr("// dofh_secsize = %d", hdr->dofh_secsize); |
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603 tty->print_cr("// dofh_secnum = %d", hdr->dofh_secnum); |
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604 tty->print_cr("// dofh_secoff = %lld", hdr->dofh_secoff); |
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605 tty->print_cr("// dofh_loadsz = %lld", hdr->dofh_loadsz); |
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606 tty->print_cr("// dofh_filesz = %lld", hdr->dofh_filesz); |
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607 tty->print_cr("// }"); |
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608 } |
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609 |
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610 static void printDOF(void* dof) { |
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611 dof_hdr_t* hdr = (dof_hdr_t*)dof; |
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612 printDOFHeader(hdr); |
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613 for (int i = 0; i < hdr->dofh_secnum; ++i) { |
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614 dof_sec_t* sec = |
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615 (dof_sec_t*)((char*)dof + sizeof(dof_hdr_t) + i * sizeof(dof_sec_t)); |
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616 tty->print_cr("// [Section #%d]", i); |
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617 printDOFSection(dof, sec); |
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618 } |
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619 } |
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620 |
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621 /** |
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622 * This prints out hex data in a 'windbg' or 'xxd' form, where each line is: |
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623 * <hex-address>: 8 * <hex-halfword> <ascii translation> |
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624 * example: |
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625 * 0000000: 7f44 4f46 0102 0102 0000 0000 0000 0000 .DOF............ |
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626 * 0000010: 0000 0000 0000 0040 0000 0020 0000 0005 .......@... .... |
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627 * 0000020: 0000 0000 0000 0040 0000 0000 0000 015d .......@.......] |
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628 * ... |
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629 */ |
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630 static void printDOFRawData(void* dof) { |
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631 size_t size = ((dof_hdr_t*)dof)->dofh_loadsz; |
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632 size_t limit = (size + 16) / 16 * 16; |
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633 for (size_t i = 0; i < limit; ++i) { |
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634 if (i % 16 == 0) { |
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635 tty->print("%07x:", i); |
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636 } |
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637 if (i % 2 == 0) { |
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638 tty->print(" "); |
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639 } |
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640 if (i < size) { |
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641 tty->print("%02x", ((unsigned char*)dof)[i]); |
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642 } else { |
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643 tty->print(" "); |
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644 } |
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645 if ((i + 1) % 16 == 0) { |
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646 tty->print(" "); |
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647 for (size_t j = 0; j < 16; ++j) { |
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648 size_t idx = i + j - 15; |
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649 char c = ((char*)dof)[idx]; |
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650 if (idx < size) { |
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651 tty->print("%c", c >= 32 && c <= 126 ? c : '.'); |
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652 } |
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653 } |
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654 tty->print_cr(""); |
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655 } |
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656 } |
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657 tty->print_cr(""); |
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658 } |
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659 |
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660 static void printDOFHelper(dof_helper_t* helper) { |
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661 tty->print_cr("// dof_helper_t {"); |
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662 tty->print_cr("// dofhp_mod = \"%s\"", helper->dofhp_mod); |
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663 tty->print_cr("// dofhp_addr = 0x%016llx", helper->dofhp_addr); |
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664 tty->print_cr("// dofhp_dof = 0x%016llx", helper->dofhp_dof); |
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665 printDOF((void*)helper->dofhp_dof); |
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666 tty->print_cr("// }"); |
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667 printDOFRawData((void*)helper->dofhp_dof); |
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668 } |
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669 |
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670 #else // ndef HAVE_DTRACE_H |
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671 |
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672 // Get here if we're not building on at least Solaris 10 |
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673 int DTraceJSDT::pd_activate( |
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674 void* baseAddress, jstring module, |
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675 jint provider_count, JVM_DTraceProvider* providers) { |
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676 return -1; |
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677 } |
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678 |
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679 void DTraceJSDT::pd_dispose(int handle) { |
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680 } |
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681 |
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682 jboolean DTraceJSDT::pd_is_supported() { |
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683 return false; |
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684 } |
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685 #endif |