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1 /* |
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2 * Copyright (c) 1999, 2010, 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 #include <windows.h> |
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26 #include <io.h> |
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27 #include <process.h> |
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28 #include <stdlib.h> |
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29 #include <stdio.h> |
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30 #include <string.h> |
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31 #include <sys/types.h> |
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32 #include <sys/stat.h> |
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33 |
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34 #include <jni.h> |
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35 #include "java.h" |
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36 #ifndef GAMMA |
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37 #include "version_comp.h" |
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38 #endif |
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39 |
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40 #define JVM_DLL "jvm.dll" |
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41 #define JAVA_DLL "java.dll" |
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42 #define CRT_DLL "msvcr71.dll" |
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43 |
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44 /* |
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45 * Prototypes. |
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46 */ |
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47 static jboolean GetPublicJREHome(char *path, jint pathsize); |
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48 static jboolean GetJVMPath(const char *jrepath, const char *jvmtype, |
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49 char *jvmpath, jint jvmpathsize); |
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50 static jboolean GetJREPath(char *path, jint pathsize); |
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51 static void EnsureJreInstallation(const char *jrepath); |
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52 |
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53 /* We supports warmup for UI stack that is performed in parallel |
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54 * to VM initialization. |
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55 * This helps to improve startup of UI application as warmup phase |
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56 * might be long due to initialization of OS or hardware resources. |
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57 * It is not CPU bound and therefore it does not interfere with VM init. |
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58 * Obviously such warmup only has sense for UI apps and therefore it needs |
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59 * to be explicitly requested by passing -Dsun.awt.warmup=true property |
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60 * (this is always the case for plugin/javaws). |
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61 * |
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62 * Implementation launches new thread after VM starts and use it to perform |
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63 * warmup code (platform dependent). |
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64 * This thread is later reused as AWT toolkit thread as graphics toolkit |
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65 * often assume that they are used from the same thread they were launched on. |
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66 * |
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67 * At the moment we only support warmup for D3D. It only possible on windows |
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68 * and only if other flags do not prohibit this (e.g. OpenGL support requested). |
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69 */ |
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70 #undef ENABLE_AWT_PRELOAD |
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71 #ifndef JAVA_ARGS /* turn off AWT preloading for javac, jar, etc */ |
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72 #ifdef _X86_ /* for now disable AWT preloading for 64bit */ |
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73 #define ENABLE_AWT_PRELOAD |
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74 #endif |
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75 #endif |
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76 |
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77 #ifdef ENABLE_AWT_PRELOAD |
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78 /* "AWT was preloaded" flag; |
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79 * Turned on by AWTPreload(). |
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80 */ |
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81 int awtPreloaded = 0; |
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82 |
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83 /* Calls a function with the name specified. |
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84 * The function must be int(*fn)(void). |
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85 */ |
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86 int AWTPreload(const char *funcName); |
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87 /* Stops AWT preloading. */ |
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88 void AWTPreloadStop(); |
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89 |
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90 /* D3D preloading */ |
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91 /* -1: not initialized; 0: OFF, 1: ON */ |
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92 int awtPreloadD3D = -1; |
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93 /* Command line parameter to swith D3D preloading on. */ |
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94 #define PARAM_PRELOAD_D3D "-Dsun.awt.warmup" |
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95 /* D3D/OpenGL management parameters (may disable D3D preloading) */ |
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96 #define PARAM_NODDRAW "-Dsun.java2d.noddraw" |
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97 #define PARAM_D3D "-Dsun.java2d.d3d" |
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98 #define PARAM_OPENGL "-Dsun.java2d.opengl" |
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99 /* funtion in awt.dll (src/windows/native/sun/java2d/d3d/D3DPipelineManager.cpp) */ |
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100 #define D3D_PRELOAD_FUNC "preloadD3D" |
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101 |
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102 |
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103 /* Extracts value of a parameter with the specified name |
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104 * from command line argument (returns pointer in the argument). |
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105 * Returns NULL if the argument does not contains the parameter. |
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106 * e.g.: |
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107 * GetParamValue("theParam", "theParam=value") returns pointer to "value". |
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108 */ |
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109 const char * GetParamValue(const char *paramName, const char *arg) { |
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110 int nameLen = strlen(paramName); |
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111 if (strncmp(paramName, arg, nameLen) == 0) { |
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112 // arg[nameLen] is valid (may contain final NULL) |
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113 if (arg[nameLen] == '=') { |
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114 return arg + nameLen + 1; |
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115 } |
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116 } |
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117 return NULL; |
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118 } |
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119 |
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120 /* Checks if commandline argument contains property specified |
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121 * and analyze it as boolean property (true/false). |
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122 * Returns -1 if the argument does not contain the parameter; |
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123 * Returns 1 if the argument contains the parameter and its value is "true"; |
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124 * Returns 0 if the argument contains the parameter and its value is "false". |
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125 */ |
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126 int GetBoolParamValue(const char *paramName, const char *arg) { |
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127 const char * paramValue = GetParamValue(paramName, arg); |
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128 if (paramValue != NULL) { |
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129 if (stricmp(paramValue, "true") == 0) { |
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130 return 1; |
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131 } |
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132 if (stricmp(paramValue, "false") == 0) { |
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133 return 0; |
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134 } |
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135 } |
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136 return -1; |
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137 } |
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138 #endif /* ENABLE_AWT_PRELOAD */ |
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139 |
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140 |
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141 const char * |
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142 GetArch() |
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143 { |
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144 |
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145 #ifdef _M_AMD64 |
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146 return "amd64"; |
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147 #elif defined(_M_IA64) |
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148 return "ia64"; |
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149 #else |
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150 return "i386"; |
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151 #endif |
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152 } |
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153 |
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154 /* |
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155 * |
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156 */ |
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157 void |
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158 CreateExecutionEnvironment(int *_argc, |
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159 char ***_argv, |
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160 char jrepath[], |
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161 jint so_jrepath, |
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162 char jvmpath[], |
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163 jint so_jvmpath, |
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164 char **original_argv) { |
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165 #ifndef GAMMA |
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166 char * jvmtype; |
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167 |
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168 /* Find out where the JRE is that we will be using. */ |
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169 if (!GetJREPath(jrepath, so_jrepath)) { |
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170 ReportErrorMessage("Error: could not find Java SE Runtime Environment.", |
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171 JNI_TRUE); |
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172 exit(2); |
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173 } |
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174 |
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175 /* Do this before we read jvm.cfg */ |
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176 EnsureJreInstallation(jrepath); |
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177 |
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178 /* Find the specified JVM type */ |
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179 if (ReadKnownVMs(jrepath, (char*)GetArch(), JNI_FALSE) < 1) { |
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180 ReportErrorMessage("Error: no known VMs. (check for corrupt jvm.cfg file)", |
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181 JNI_TRUE); |
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182 exit(1); |
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183 } |
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184 jvmtype = CheckJvmType(_argc, _argv, JNI_FALSE); |
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185 |
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186 jvmpath[0] = '\0'; |
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187 if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath)) { |
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188 char * message=NULL; |
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189 const char * format = "Error: no `%s' JVM at `%s'."; |
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190 message = (char *)JLI_MemAlloc((strlen(format)+strlen(jvmtype)+ |
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191 strlen(jvmpath)) * sizeof(char)); |
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192 sprintf(message,format, jvmtype, jvmpath); |
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193 ReportErrorMessage(message, JNI_TRUE); |
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194 exit(4); |
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195 } |
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196 /* If we got here, jvmpath has been correctly initialized. */ |
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197 |
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198 #else /* ifndef GAMMA */ |
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199 |
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200 /* |
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201 * gamma launcher is simpler in that it doesn't handle VM flavors, data |
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202 * model, etc. Assuming everything is set-up correctly |
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203 * all we need to do here is to return correct path names. See also |
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204 * GetJVMPath() and GetApplicationHome(). |
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205 */ |
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206 |
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207 { |
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208 if (!GetJREPath(jrepath, so_jrepath) ) { |
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209 ReportErrorMessage("Error: could not find Java SE Runtime Environment.", |
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210 JNI_TRUE); |
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211 exit(2); |
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212 } |
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213 |
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214 if (!GetJVMPath(jrepath, NULL, jvmpath, so_jvmpath)) { |
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215 char * message=NULL; |
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216 const char * format = "Error: no JVM at `%s'."; |
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217 message = (char *)JLI_MemAlloc((strlen(format)+ |
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218 strlen(jvmpath)) * sizeof(char)); |
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219 sprintf(message, format, jvmpath); |
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220 ReportErrorMessage(message, JNI_TRUE); |
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221 exit(4); |
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222 } |
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223 } |
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224 |
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225 #endif /* ifndef GAMMA */ |
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226 |
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227 } |
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228 |
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229 |
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230 static jboolean |
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231 LoadMSVCRT() |
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232 { |
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233 // Only do this once |
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234 static int loaded = 0; |
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235 char crtpath[MAXPATHLEN]; |
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236 |
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237 if (!loaded) { |
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238 /* |
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239 * The Microsoft C Runtime Library needs to be loaded first. A copy is |
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240 * assumed to be present in the "JRE path" directory. If it is not found |
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241 * there (or "JRE path" fails to resolve), skip the explicit load and let |
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242 * nature take its course, which is likely to be a failure to execute. |
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243 */ |
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244 if (GetJREPath(crtpath, MAXPATHLEN)) { |
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245 (void)strcat(crtpath, "\\bin\\" CRT_DLL); /* Add crt dll */ |
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246 if (_launcher_debug) { |
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247 printf("CRT path is %s\n", crtpath); |
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248 } |
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249 if (_access(crtpath, 0) == 0) { |
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250 if (LoadLibrary(crtpath) == 0) { |
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251 ReportErrorMessage2("Error loading: %s", crtpath, JNI_TRUE); |
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252 return JNI_FALSE; |
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253 } |
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254 } |
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255 } |
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256 loaded = 1; |
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257 } |
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258 return JNI_TRUE; |
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259 } |
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260 |
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261 /* |
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262 * The preJVMStart is a function in the jkernel.dll, which |
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263 * performs the final step of synthesizing back the decomposed |
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264 * modules (partial install) to the full JRE. Any tool which |
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265 * uses the JRE must peform this step to ensure the complete synthesis. |
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266 * The EnsureJreInstallation function calls preJVMStart based on |
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267 * the conditions outlined below, noting that the operation |
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268 * will fail silently if any of conditions are not met. |
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269 * NOTE: this call must be made before jvm.dll is loaded, or jvm.cfg |
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270 * is read, since jvm.cfg will be modified by the preJVMStart. |
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271 * 1. Are we on a supported platform. |
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272 * 2. Find the location of the JRE or the Kernel JRE. |
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273 * 3. check existence of JREHOME/lib/bundles |
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274 * 4. check jkernel.dll and invoke the entry-point |
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275 */ |
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276 typedef VOID (WINAPI *PREJVMSTART)(); |
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277 |
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278 static void |
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279 EnsureJreInstallation(const char* jrepath) |
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280 { |
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281 HINSTANCE handle; |
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282 char tmpbuf[MAXPATHLEN]; |
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283 PREJVMSTART PreJVMStart; |
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284 struct stat s; |
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285 |
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286 /* 32 bit windows only please */ |
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287 if (strcmp(GetArch(), "i386") != 0 ) { |
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288 if (_launcher_debug) { |
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289 printf("EnsureJreInstallation:unsupported platform\n"); |
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290 } |
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291 return; |
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292 } |
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293 /* Does our bundle directory exist ? */ |
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294 strcpy(tmpbuf, jrepath); |
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295 strcat(tmpbuf, "\\lib\\bundles"); |
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296 if (stat(tmpbuf, &s) != 0) { |
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297 if (_launcher_debug) { |
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298 printf("EnsureJreInstallation:<%s>:not found\n", tmpbuf); |
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299 } |
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300 return; |
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301 } |
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302 /* Does our jkernel dll exist ? */ |
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303 strcpy(tmpbuf, jrepath); |
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304 strcat(tmpbuf, "\\bin\\jkernel.dll"); |
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305 if (stat(tmpbuf, &s) != 0) { |
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306 if (_launcher_debug) { |
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307 printf("EnsureJreInstallation:<%s>:not found\n", tmpbuf); |
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308 } |
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309 return; |
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310 } |
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311 /* The Microsoft C Runtime Library needs to be loaded first. */ |
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312 if (!LoadMSVCRT()) { |
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313 if (_launcher_debug) { |
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314 printf("EnsureJreInstallation:could not load C runtime DLL\n"); |
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315 } |
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316 return; |
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317 } |
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318 /* Load the jkernel.dll */ |
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319 if ((handle = LoadLibrary(tmpbuf)) == 0) { |
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320 if (_launcher_debug) { |
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321 printf("EnsureJreInstallation:%s:load failed\n", tmpbuf); |
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322 } |
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323 return; |
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324 } |
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325 /* Get the function address */ |
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326 PreJVMStart = (PREJVMSTART)GetProcAddress(handle, "preJVMStart"); |
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327 if (PreJVMStart == NULL) { |
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328 if (_launcher_debug) { |
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329 printf("EnsureJreInstallation:preJVMStart:function lookup failed\n"); |
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330 } |
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331 FreeLibrary(handle); |
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332 return; |
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333 } |
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334 PreJVMStart(); |
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335 if (_launcher_debug) { |
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336 printf("EnsureJreInstallation:preJVMStart:called\n"); |
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337 } |
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338 FreeLibrary(handle); |
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339 return; |
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340 } |
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341 |
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342 /* |
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343 * Find path to JRE based on .exe's location or registry settings. |
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344 */ |
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345 jboolean |
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346 GetJREPath(char *path, jint pathsize) |
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347 { |
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348 char javadll[MAXPATHLEN]; |
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349 struct stat s; |
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350 |
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351 if (GetApplicationHome(path, pathsize)) { |
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352 /* Is JRE co-located with the application? */ |
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353 sprintf(javadll, "%s\\bin\\" JAVA_DLL, path); |
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354 if (stat(javadll, &s) == 0) { |
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355 goto found; |
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356 } |
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357 |
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358 /* Does this app ship a private JRE in <apphome>\jre directory? */ |
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359 sprintf(javadll, "%s\\jre\\bin\\" JAVA_DLL, path); |
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360 if (stat(javadll, &s) == 0) { |
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361 strcat(path, "\\jre"); |
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362 goto found; |
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363 } |
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364 } |
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365 |
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366 #ifndef GAMMA |
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367 /* Look for a public JRE on this machine. */ |
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368 if (GetPublicJREHome(path, pathsize)) { |
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369 goto found; |
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370 } |
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371 #endif |
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372 |
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373 fprintf(stderr, "Error: could not find " JAVA_DLL "\n"); |
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374 return JNI_FALSE; |
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375 |
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376 found: |
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377 if (_launcher_debug) |
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378 printf("JRE path is %s\n", path); |
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379 return JNI_TRUE; |
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380 } |
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381 |
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382 /* |
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383 * Given a JRE location and a JVM type, construct what the name the |
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384 * JVM shared library will be. Return true, if such a library |
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385 * exists, false otherwise. |
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386 */ |
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387 static jboolean |
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388 GetJVMPath(const char *jrepath, const char *jvmtype, |
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389 char *jvmpath, jint jvmpathsize) |
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390 { |
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391 struct stat s; |
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392 |
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393 #ifndef GAMMA |
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394 if (strchr(jvmtype, '/') || strchr(jvmtype, '\\')) { |
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395 sprintf(jvmpath, "%s\\" JVM_DLL, jvmtype); |
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396 } else { |
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397 sprintf(jvmpath, "%s\\bin\\%s\\" JVM_DLL, jrepath, jvmtype); |
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398 } |
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399 #else |
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400 /* |
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401 * For gamma launcher, JVM is either built-in or in the same directory. |
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402 * Either way we return "<exe_path>/jvm.dll" where <exe_path> is the |
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403 * directory where gamma launcher is located. |
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404 */ |
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405 |
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406 char *p; |
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407 GetModuleFileName(0, jvmpath, jvmpathsize); |
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408 |
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409 p = strrchr(jvmpath, '\\'); |
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410 if (p) { |
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411 /* replace executable name with libjvm.so */ |
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412 snprintf(p + 1, jvmpathsize - (p + 1 - jvmpath), "%s", JVM_DLL); |
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413 } else { |
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414 /* this case shouldn't happen */ |
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415 snprintf(jvmpath, jvmpathsize, "%s", JVM_DLL); |
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416 } |
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417 #endif /* ifndef GAMMA */ |
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418 |
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419 if (stat(jvmpath, &s) == 0) { |
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420 return JNI_TRUE; |
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421 } else { |
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422 return JNI_FALSE; |
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423 } |
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424 } |
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425 |
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426 /* |
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427 * Load a jvm from "jvmpath" and initialize the invocation functions. |
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428 */ |
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429 jboolean |
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430 LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn) |
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431 { |
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432 #ifdef GAMMA |
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433 /* JVM is directly linked with gamma launcher; no Loadlibrary() */ |
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434 ifn->CreateJavaVM = JNI_CreateJavaVM; |
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435 ifn->GetDefaultJavaVMInitArgs = JNI_GetDefaultJavaVMInitArgs; |
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436 return JNI_TRUE; |
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437 #else |
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438 HINSTANCE handle; |
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439 |
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440 if (_launcher_debug) { |
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441 printf("JVM path is %s\n", jvmpath); |
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442 } |
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443 |
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444 /* The Microsoft C Runtime Library needs to be loaded first. */ |
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445 LoadMSVCRT(); |
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446 |
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447 /* Load the Java VM DLL */ |
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448 if ((handle = LoadLibrary(jvmpath)) == 0) { |
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449 ReportErrorMessage2("Error loading: %s", (char *)jvmpath, JNI_TRUE); |
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450 return JNI_FALSE; |
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451 } |
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452 |
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453 /* Now get the function addresses */ |
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454 ifn->CreateJavaVM = |
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455 (void *)GetProcAddress(handle, "JNI_CreateJavaVM"); |
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456 ifn->GetDefaultJavaVMInitArgs = |
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457 (void *)GetProcAddress(handle, "JNI_GetDefaultJavaVMInitArgs"); |
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458 if (ifn->CreateJavaVM == 0 || ifn->GetDefaultJavaVMInitArgs == 0) { |
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459 ReportErrorMessage2("Error: can't find JNI interfaces in: %s", |
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460 (char *)jvmpath, JNI_TRUE); |
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461 return JNI_FALSE; |
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462 } |
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463 |
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464 return JNI_TRUE; |
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465 #endif /* ifndef GAMMA */ |
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466 } |
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467 |
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468 /* |
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469 * If app is "c:\foo\bin\javac", then put "c:\foo" into buf. |
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470 */ |
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471 jboolean |
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472 GetApplicationHome(char *buf, jint bufsize) |
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473 { |
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474 #ifndef GAMMA |
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475 char *cp; |
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476 GetModuleFileName(0, buf, bufsize); |
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477 *strrchr(buf, '\\') = '\0'; /* remove .exe file name */ |
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478 if ((cp = strrchr(buf, '\\')) == 0) { |
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479 /* This happens if the application is in a drive root, and |
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480 * there is no bin directory. */ |
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481 buf[0] = '\0'; |
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482 return JNI_FALSE; |
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483 } |
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484 *cp = '\0'; /* remove the bin\ part */ |
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485 return JNI_TRUE; |
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486 |
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487 #else /* ifndef GAMMA */ |
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488 |
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489 /* gamma launcher uses JAVA_HOME or ALT_JAVA_HOME environment variable to find JDK/JRE */ |
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490 char* java_home_var = getenv("ALT_JAVA_HOME"); |
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491 if (java_home_var == NULL) { |
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492 java_home_var = getenv("JAVA_HOME"); |
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493 } |
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494 if (java_home_var == NULL) { |
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495 printf("JAVA_HOME or ALT_JAVA_HOME must point to a valid JDK/JRE to run gamma\n"); |
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496 return JNI_FALSE; |
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497 } |
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498 snprintf(buf, bufsize, "%s", java_home_var); |
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499 return JNI_TRUE; |
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500 #endif /* ifndef GAMMA */ |
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501 } |
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502 |
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503 #ifdef JAVAW |
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504 __declspec(dllimport) char **__initenv; |
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505 |
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506 int WINAPI |
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507 WinMain(HINSTANCE inst, HINSTANCE previnst, LPSTR cmdline, int cmdshow) |
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508 { |
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509 int ret; |
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510 |
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511 __initenv = _environ; |
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512 ret = main(__argc, __argv); |
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513 |
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514 return ret; |
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515 } |
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516 #endif |
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517 |
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518 #ifndef GAMMA |
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519 |
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520 /* |
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521 * Helpers to look in the registry for a public JRE. |
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522 */ |
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523 /* Same for 1.5.0, 1.5.1, 1.5.2 etc. */ |
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524 #define DOTRELEASE JDK_MAJOR_VERSION "." JDK_MINOR_VERSION |
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525 #define JRE_KEY "Software\\JavaSoft\\Java Runtime Environment" |
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526 |
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527 static jboolean |
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528 GetStringFromRegistry(HKEY key, const char *name, char *buf, jint bufsize) |
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529 { |
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530 DWORD type, size; |
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531 |
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532 if (RegQueryValueEx(key, name, 0, &type, 0, &size) == 0 |
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533 && type == REG_SZ |
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534 && (size < (unsigned int)bufsize)) { |
|
535 if (RegQueryValueEx(key, name, 0, 0, buf, &size) == 0) { |
|
536 return JNI_TRUE; |
|
537 } |
|
538 } |
|
539 return JNI_FALSE; |
|
540 } |
|
541 |
|
542 static jboolean |
|
543 GetPublicJREHome(char *buf, jint bufsize) |
|
544 { |
|
545 HKEY key, subkey; |
|
546 char version[MAXPATHLEN]; |
|
547 |
|
548 /* |
|
549 * Note: There is a very similar implementation of the following |
|
550 * registry reading code in the Windows java control panel (javacp.cpl). |
|
551 * If there are bugs here, a similar bug probably exists there. Hence, |
|
552 * changes here require inspection there. |
|
553 */ |
|
554 |
|
555 /* Find the current version of the JRE */ |
|
556 if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, JRE_KEY, 0, KEY_READ, &key) != 0) { |
|
557 fprintf(stderr, "Error opening registry key '" JRE_KEY "'\n"); |
|
558 return JNI_FALSE; |
|
559 } |
|
560 |
|
561 if (!GetStringFromRegistry(key, "CurrentVersion", |
|
562 version, sizeof(version))) { |
|
563 fprintf(stderr, "Failed reading value of registry key:\n\t" |
|
564 JRE_KEY "\\CurrentVersion\n"); |
|
565 RegCloseKey(key); |
|
566 return JNI_FALSE; |
|
567 } |
|
568 |
|
569 if (strcmp(version, DOTRELEASE) != 0) { |
|
570 fprintf(stderr, "Registry key '" JRE_KEY "\\CurrentVersion'\nhas " |
|
571 "value '%s', but '" DOTRELEASE "' is required.\n", version); |
|
572 RegCloseKey(key); |
|
573 return JNI_FALSE; |
|
574 } |
|
575 |
|
576 /* Find directory where the current version is installed. */ |
|
577 if (RegOpenKeyEx(key, version, 0, KEY_READ, &subkey) != 0) { |
|
578 fprintf(stderr, "Error opening registry key '" |
|
579 JRE_KEY "\\%s'\n", version); |
|
580 RegCloseKey(key); |
|
581 return JNI_FALSE; |
|
582 } |
|
583 |
|
584 if (!GetStringFromRegistry(subkey, "JavaHome", buf, bufsize)) { |
|
585 fprintf(stderr, "Failed reading value of registry key:\n\t" |
|
586 JRE_KEY "\\%s\\JavaHome\n", version); |
|
587 RegCloseKey(key); |
|
588 RegCloseKey(subkey); |
|
589 return JNI_FALSE; |
|
590 } |
|
591 |
|
592 if (_launcher_debug) { |
|
593 char micro[MAXPATHLEN]; |
|
594 if (!GetStringFromRegistry(subkey, "MicroVersion", micro, |
|
595 sizeof(micro))) { |
|
596 printf("Warning: Can't read MicroVersion\n"); |
|
597 micro[0] = '\0'; |
|
598 } |
|
599 printf("Version major.minor.micro = %s.%s\n", version, micro); |
|
600 } |
|
601 |
|
602 RegCloseKey(key); |
|
603 RegCloseKey(subkey); |
|
604 return JNI_TRUE; |
|
605 } |
|
606 |
|
607 #endif /* ifndef GAMMA */ |
|
608 |
|
609 /* |
|
610 * Support for doing cheap, accurate interval timing. |
|
611 */ |
|
612 static jboolean counterAvailable = JNI_FALSE; |
|
613 static jboolean counterInitialized = JNI_FALSE; |
|
614 static LARGE_INTEGER counterFrequency; |
|
615 |
|
616 jlong CounterGet() |
|
617 { |
|
618 LARGE_INTEGER count; |
|
619 |
|
620 if (!counterInitialized) { |
|
621 counterAvailable = QueryPerformanceFrequency(&counterFrequency); |
|
622 counterInitialized = JNI_TRUE; |
|
623 } |
|
624 if (!counterAvailable) { |
|
625 return 0; |
|
626 } |
|
627 QueryPerformanceCounter(&count); |
|
628 return (jlong)(count.QuadPart); |
|
629 } |
|
630 |
|
631 jlong Counter2Micros(jlong counts) |
|
632 { |
|
633 if (!counterAvailable || !counterInitialized) { |
|
634 return 0; |
|
635 } |
|
636 return (counts * 1000 * 1000)/counterFrequency.QuadPart; |
|
637 } |
|
638 |
|
639 void ReportErrorMessage(char * message, jboolean always) { |
|
640 #ifdef JAVAW |
|
641 if (message != NULL) { |
|
642 MessageBox(NULL, message, "Java Virtual Machine Launcher", |
|
643 (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); |
|
644 } |
|
645 #else |
|
646 if (always) { |
|
647 fprintf(stderr, "%s\n", message); |
|
648 } |
|
649 #endif |
|
650 } |
|
651 |
|
652 void ReportErrorMessage2(char * format, char * string, jboolean always) { |
|
653 /* |
|
654 * The format argument must be a printf format string with one %s |
|
655 * argument, which is passed the string argument. |
|
656 */ |
|
657 #ifdef JAVAW |
|
658 size_t size; |
|
659 char * message; |
|
660 size = strlen(format) + strlen(string); |
|
661 message = (char*)JLI_MemAlloc(size*sizeof(char)); |
|
662 sprintf(message, (const char *)format, string); |
|
663 |
|
664 if (message != NULL) { |
|
665 MessageBox(NULL, message, "Java Virtual Machine Launcher", |
|
666 (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); |
|
667 JLI_MemFree(message); |
|
668 } |
|
669 #else |
|
670 if (always) { |
|
671 fprintf(stderr, (const char *)format, string); |
|
672 fprintf(stderr, "\n"); |
|
673 } |
|
674 #endif |
|
675 } |
|
676 |
|
677 /* |
|
678 * As ReportErrorMessage2 (above) except the system message (if any) |
|
679 * associated with this error is written to a second %s format specifier |
|
680 * in the format argument. |
|
681 */ |
|
682 void ReportSysErrorMessage2(char * format, char * string, jboolean always) { |
|
683 int save_errno = errno; |
|
684 DWORD errval; |
|
685 int freeit = 0; |
|
686 char *errtext = NULL; |
|
687 |
|
688 if ((errval = GetLastError()) != 0) { /* Platform SDK / DOS Error */ |
|
689 int n = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM| |
|
690 FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_ALLOCATE_BUFFER, |
|
691 NULL, errval, 0, (LPTSTR)&errtext, 0, NULL); |
|
692 if (errtext == NULL || n == 0) { /* Paranoia check */ |
|
693 errtext = ""; |
|
694 n = 0; |
|
695 } else { |
|
696 freeit = 1; |
|
697 if (n > 2) { /* Drop final CR, LF */ |
|
698 if (errtext[n - 1] == '\n') n--; |
|
699 if (errtext[n - 1] == '\r') n--; |
|
700 errtext[n] = '\0'; |
|
701 } |
|
702 } |
|
703 } else /* C runtime error that has no corresponding DOS error code */ |
|
704 errtext = strerror(save_errno); |
|
705 |
|
706 #ifdef JAVAW |
|
707 { |
|
708 size_t size; |
|
709 char * message; |
|
710 size = strlen(format) + strlen(string) + strlen(errtext); |
|
711 message = (char*)JLI_MemAlloc(size*sizeof(char)); |
|
712 sprintf(message, (const char *)format, string, errtext); |
|
713 |
|
714 if (message != NULL) { |
|
715 MessageBox(NULL, message, "Java Virtual Machine Launcher", |
|
716 (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); |
|
717 JLI_MemFree(message); |
|
718 } |
|
719 } |
|
720 #else |
|
721 if (always) { |
|
722 fprintf(stderr, (const char *)format, string, errtext); |
|
723 fprintf(stderr, "\n"); |
|
724 } |
|
725 #endif |
|
726 if (freeit) |
|
727 (void)LocalFree((HLOCAL)errtext); |
|
728 } |
|
729 |
|
730 void ReportExceptionDescription(JNIEnv * env) { |
|
731 #ifdef JAVAW |
|
732 /* |
|
733 * This code should be replaced by code which opens a window with |
|
734 * the exception detail message. |
|
735 */ |
|
736 (*env)->ExceptionDescribe(env); |
|
737 #else |
|
738 (*env)->ExceptionDescribe(env); |
|
739 #endif |
|
740 } |
|
741 |
|
742 |
|
743 /* |
|
744 * Return JNI_TRUE for an option string that has no effect but should |
|
745 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On |
|
746 * windows, there are no options that should be screened in this |
|
747 * manner. |
|
748 */ |
|
749 jboolean RemovableMachineDependentOption(char * option) { |
|
750 #ifdef ENABLE_AWT_PRELOAD |
|
751 if (awtPreloadD3D < 0) { |
|
752 /* Tests the command line parameter only if not set yet. */ |
|
753 if (GetBoolParamValue(PARAM_PRELOAD_D3D, option) == 1) { |
|
754 awtPreloadD3D = 1; |
|
755 } |
|
756 } |
|
757 if (awtPreloadD3D != 0) { |
|
758 /* Don't test the command line parameters if already disabled. */ |
|
759 if (GetBoolParamValue(PARAM_NODDRAW, option) == 1 |
|
760 || GetBoolParamValue(PARAM_D3D, option) == 0 |
|
761 || GetBoolParamValue(PARAM_OPENGL, option) == 1) |
|
762 { |
|
763 awtPreloadD3D = 0; |
|
764 } |
|
765 } |
|
766 #endif /* ENABLE_AWT_PRELOAD */ |
|
767 |
|
768 return JNI_FALSE; |
|
769 } |
|
770 |
|
771 void PrintMachineDependentOptions() { |
|
772 return; |
|
773 } |
|
774 |
|
775 #ifndef GAMMA |
|
776 |
|
777 jboolean |
|
778 ServerClassMachine() { |
|
779 jboolean result = JNI_FALSE; |
|
780 #if defined(NEVER_ACT_AS_SERVER_CLASS_MACHINE) |
|
781 result = JNI_FALSE; |
|
782 #elif defined(ALWAYS_ACT_AS_SERVER_CLASS_MACHINE) |
|
783 result = JNI_TRUE; |
|
784 #endif |
|
785 return result; |
|
786 } |
|
787 |
|
788 /* |
|
789 * Determine if there is an acceptable JRE in the registry directory top_key. |
|
790 * Upon locating the "best" one, return a fully qualified path to it. |
|
791 * "Best" is defined as the most advanced JRE meeting the constraints |
|
792 * contained in the manifest_info. If no JRE in this directory meets the |
|
793 * constraints, return NULL. |
|
794 * |
|
795 * It doesn't matter if we get an error reading the registry, or we just |
|
796 * don't find anything interesting in the directory. We just return NULL |
|
797 * in either case. |
|
798 */ |
|
799 static char * |
|
800 ProcessDir(manifest_info* info, HKEY top_key) { |
|
801 DWORD index = 0; |
|
802 HKEY ver_key; |
|
803 char name[MAXNAMELEN]; |
|
804 int len; |
|
805 char *best = NULL; |
|
806 |
|
807 /* |
|
808 * Enumerate "<top_key>/SOFTWARE/JavaSoft/Java Runtime Environment" |
|
809 * searching for the best available version. |
|
810 */ |
|
811 while (RegEnumKey(top_key, index, name, MAXNAMELEN) == ERROR_SUCCESS) { |
|
812 index++; |
|
813 if (JLI_AcceptableRelease(name, info->jre_version)) |
|
814 if ((best == NULL) || (JLI_ExactVersionId(name, best) > 0)) { |
|
815 if (best != NULL) |
|
816 JLI_MemFree(best); |
|
817 best = JLI_StringDup(name); |
|
818 } |
|
819 } |
|
820 |
|
821 /* |
|
822 * Extract "JavaHome" from the "best" registry directory and return |
|
823 * that path. If no appropriate version was located, or there is an |
|
824 * error in extracting the "JavaHome" string, return null. |
|
825 */ |
|
826 if (best == NULL) |
|
827 return (NULL); |
|
828 else { |
|
829 if (RegOpenKeyEx(top_key, best, 0, KEY_READ, &ver_key) |
|
830 != ERROR_SUCCESS) { |
|
831 JLI_MemFree(best); |
|
832 if (ver_key != NULL) |
|
833 RegCloseKey(ver_key); |
|
834 return (NULL); |
|
835 } |
|
836 JLI_MemFree(best); |
|
837 len = MAXNAMELEN; |
|
838 if (RegQueryValueEx(ver_key, "JavaHome", NULL, NULL, (LPBYTE)name, &len) |
|
839 != ERROR_SUCCESS) { |
|
840 if (ver_key != NULL) |
|
841 RegCloseKey(ver_key); |
|
842 return (NULL); |
|
843 } |
|
844 if (ver_key != NULL) |
|
845 RegCloseKey(ver_key); |
|
846 return (JLI_StringDup(name)); |
|
847 } |
|
848 } |
|
849 |
|
850 /* |
|
851 * This is the global entry point. It examines the host for the optimal |
|
852 * JRE to be used by scanning a set of registry entries. This set of entries |
|
853 * is hardwired on Windows as "Software\JavaSoft\Java Runtime Environment" |
|
854 * under the set of roots "{ HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE }". |
|
855 * |
|
856 * This routine simply opens each of these registry directories before passing |
|
857 * control onto ProcessDir(). |
|
858 */ |
|
859 char * |
|
860 LocateJRE(manifest_info* info) { |
|
861 HKEY key = NULL; |
|
862 char *path; |
|
863 int key_index; |
|
864 HKEY root_keys[2] = { HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE }; |
|
865 |
|
866 for (key_index = 0; key_index <= 1; key_index++) { |
|
867 if (RegOpenKeyEx(root_keys[key_index], JRE_KEY, 0, KEY_READ, &key) |
|
868 == ERROR_SUCCESS) |
|
869 if ((path = ProcessDir(info, key)) != NULL) { |
|
870 if (key != NULL) |
|
871 RegCloseKey(key); |
|
872 return (path); |
|
873 } |
|
874 if (key != NULL) |
|
875 RegCloseKey(key); |
|
876 } |
|
877 return NULL; |
|
878 } |
|
879 |
|
880 |
|
881 /* |
|
882 * Local helper routine to isolate a single token (option or argument) |
|
883 * from the command line. |
|
884 * |
|
885 * This routine accepts a pointer to a character pointer. The first |
|
886 * token (as defined by MSDN command-line argument syntax) is isolated |
|
887 * from that string. |
|
888 * |
|
889 * Upon return, the input character pointer pointed to by the parameter s |
|
890 * is updated to point to the remainding, unscanned, portion of the string, |
|
891 * or to a null character if the entire string has been consummed. |
|
892 * |
|
893 * This function returns a pointer to a null-terminated string which |
|
894 * contains the isolated first token, or to the null character if no |
|
895 * token could be isolated. |
|
896 * |
|
897 * Note the side effect of modifying the input string s by the insertion |
|
898 * of a null character, making it two strings. |
|
899 * |
|
900 * See "Parsing C Command-Line Arguments" in the MSDN Library for the |
|
901 * parsing rule details. The rule summary from that specification is: |
|
902 * |
|
903 * * Arguments are delimited by white space, which is either a space or a tab. |
|
904 * |
|
905 * * A string surrounded by double quotation marks is interpreted as a single |
|
906 * argument, regardless of white space contained within. A quoted string can |
|
907 * be embedded in an argument. Note that the caret (^) is not recognized as |
|
908 * an escape character or delimiter. |
|
909 * |
|
910 * * A double quotation mark preceded by a backslash, \", is interpreted as a |
|
911 * literal double quotation mark ("). |
|
912 * |
|
913 * * Backslashes are interpreted literally, unless they immediately precede a |
|
914 * double quotation mark. |
|
915 * |
|
916 * * If an even number of backslashes is followed by a double quotation mark, |
|
917 * then one backslash (\) is placed in the argv array for every pair of |
|
918 * backslashes (\\), and the double quotation mark (") is interpreted as a |
|
919 * string delimiter. |
|
920 * |
|
921 * * If an odd number of backslashes is followed by a double quotation mark, |
|
922 * then one backslash (\) is placed in the argv array for every pair of |
|
923 * backslashes (\\) and the double quotation mark is interpreted as an |
|
924 * escape sequence by the remaining backslash, causing a literal double |
|
925 * quotation mark (") to be placed in argv. |
|
926 */ |
|
927 static char* |
|
928 nextarg(char** s) { |
|
929 char *p = *s; |
|
930 char *head; |
|
931 int slashes = 0; |
|
932 int inquote = 0; |
|
933 |
|
934 /* |
|
935 * Strip leading whitespace, which MSDN defines as only space or tab. |
|
936 * (Hence, no locale specific "isspace" here.) |
|
937 */ |
|
938 while (*p != (char)0 && (*p == ' ' || *p == '\t')) |
|
939 p++; |
|
940 head = p; /* Save the start of the token to return */ |
|
941 |
|
942 /* |
|
943 * Isolate a token from the command line. |
|
944 */ |
|
945 while (*p != (char)0 && (inquote || !(*p == ' ' || *p == '\t'))) { |
|
946 if (*p == '\\' && *(p+1) == '"' && slashes % 2 == 0) |
|
947 p++; |
|
948 else if (*p == '"') |
|
949 inquote = !inquote; |
|
950 slashes = (*p++ == '\\') ? slashes + 1 : 0; |
|
951 } |
|
952 |
|
953 /* |
|
954 * If the token isolated isn't already terminated in a "char zero", |
|
955 * then replace the whitespace character with one and move to the |
|
956 * next character. |
|
957 */ |
|
958 if (*p != (char)0) |
|
959 *p++ = (char)0; |
|
960 |
|
961 /* |
|
962 * Update the parameter to point to the head of the remaining string |
|
963 * reflecting the command line and return a pointer to the leading |
|
964 * token which was isolated from the command line. |
|
965 */ |
|
966 *s = p; |
|
967 return (head); |
|
968 } |
|
969 |
|
970 /* |
|
971 * Local helper routine to return a string equivalent to the input string |
|
972 * s, but with quotes removed so the result is a string as would be found |
|
973 * in argv[]. The returned string should be freed by a call to JLI_MemFree(). |
|
974 * |
|
975 * The rules for quoting (and escaped quotes) are: |
|
976 * |
|
977 * 1 A double quotation mark preceded by a backslash, \", is interpreted as a |
|
978 * literal double quotation mark ("). |
|
979 * |
|
980 * 2 Backslashes are interpreted literally, unless they immediately precede a |
|
981 * double quotation mark. |
|
982 * |
|
983 * 3 If an even number of backslashes is followed by a double quotation mark, |
|
984 * then one backslash (\) is placed in the argv array for every pair of |
|
985 * backslashes (\\), and the double quotation mark (") is interpreted as a |
|
986 * string delimiter. |
|
987 * |
|
988 * 4 If an odd number of backslashes is followed by a double quotation mark, |
|
989 * then one backslash (\) is placed in the argv array for every pair of |
|
990 * backslashes (\\) and the double quotation mark is interpreted as an |
|
991 * escape sequence by the remaining backslash, causing a literal double |
|
992 * quotation mark (") to be placed in argv. |
|
993 */ |
|
994 static char* |
|
995 unquote(const char *s) { |
|
996 const char *p = s; /* Pointer to the tail of the original string */ |
|
997 char *un = (char*)JLI_MemAlloc(strlen(s) + 1); /* Ptr to unquoted string */ |
|
998 char *pun = un; /* Pointer to the tail of the unquoted string */ |
|
999 |
|
1000 while (*p != '\0') { |
|
1001 if (*p == '"') { |
|
1002 p++; |
|
1003 } else if (*p == '\\') { |
|
1004 const char *q = p + strspn(p,"\\"); |
|
1005 if (*q == '"') |
|
1006 do { |
|
1007 *pun++ = '\\'; |
|
1008 p += 2; |
|
1009 } while (*p == '\\' && p < q); |
|
1010 else |
|
1011 while (p < q) |
|
1012 *pun++ = *p++; |
|
1013 } else { |
|
1014 *pun++ = *p++; |
|
1015 } |
|
1016 } |
|
1017 *pun = '\0'; |
|
1018 return un; |
|
1019 } |
|
1020 |
|
1021 /* |
|
1022 * Given a path to a jre to execute, this routine checks if this process |
|
1023 * is indeed that jre. If not, it exec's that jre. |
|
1024 * |
|
1025 * We want to actually check the paths rather than just the version string |
|
1026 * built into the executable, so that given version specification will yield |
|
1027 * the exact same Java environment, regardless of the version of the arbitrary |
|
1028 * launcher we start with. |
|
1029 */ |
|
1030 void |
|
1031 ExecJRE(char *jre, char **argv) { |
|
1032 int len; |
|
1033 char *progname; |
|
1034 char path[MAXPATHLEN + 1]; |
|
1035 |
|
1036 /* |
|
1037 * Determine the executable we are building (or in the rare case, running). |
|
1038 */ |
|
1039 #ifdef JAVA_ARGS /* javac, jar and friends. */ |
|
1040 progname = "java"; |
|
1041 #else /* java, oldjava, javaw and friends */ |
|
1042 #ifdef PROGNAME |
|
1043 progname = PROGNAME; |
|
1044 #else |
|
1045 { |
|
1046 char *s; |
|
1047 progname = *argv; |
|
1048 if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) { |
|
1049 progname = s + 1; |
|
1050 } |
|
1051 } |
|
1052 #endif /* PROGNAME */ |
|
1053 #endif /* JAVA_ARGS */ |
|
1054 |
|
1055 /* |
|
1056 * Resolve the real path to the currently running launcher. |
|
1057 */ |
|
1058 len = GetModuleFileName(NULL, path, MAXPATHLEN + 1); |
|
1059 if (len == 0 || len > MAXPATHLEN) { |
|
1060 ReportSysErrorMessage2( |
|
1061 "Unable to resolve path to current %s executable: %s", |
|
1062 progname, JNI_TRUE); |
|
1063 exit(1); |
|
1064 } |
|
1065 |
|
1066 if (_launcher_debug) { |
|
1067 printf("ExecJRE: old: %s\n", path); |
|
1068 printf("ExecJRE: new: %s\n", jre); |
|
1069 } |
|
1070 |
|
1071 /* |
|
1072 * If the path to the selected JRE directory is a match to the initial |
|
1073 * portion of the path to the currently executing JRE, we have a winner! |
|
1074 * If so, just return. (strnicmp() is the Windows equiv. of strncasecmp().) |
|
1075 */ |
|
1076 if (strnicmp(jre, path, strlen(jre)) == 0) |
|
1077 return; /* I am the droid you were looking for */ |
|
1078 |
|
1079 /* |
|
1080 * If this isn't the selected version, exec the selected version. |
|
1081 */ |
|
1082 (void)strcat(strcat(strcpy(path, jre), "\\bin\\"), progname); |
|
1083 (void)strcat(path, ".exe"); |
|
1084 |
|
1085 /* |
|
1086 * Although Windows has an execv() entrypoint, it doesn't actually |
|
1087 * overlay a process: it can only create a new process and terminate |
|
1088 * the old process. Therefore, any processes waiting on the initial |
|
1089 * process wake up and they shouldn't. Hence, a chain of pseudo-zombie |
|
1090 * processes must be retained to maintain the proper wait semantics. |
|
1091 * Fortunately the image size of the launcher isn't too large at this |
|
1092 * time. |
|
1093 * |
|
1094 * If it weren't for this semantic flaw, the code below would be ... |
|
1095 * |
|
1096 * execv(path, argv); |
|
1097 * ReportErrorMessage2("Exec of %s failed\n", path, JNI_TRUE); |
|
1098 * exit(1); |
|
1099 * |
|
1100 * The incorrect exec semantics could be addressed by: |
|
1101 * |
|
1102 * exit((int)spawnv(_P_WAIT, path, argv)); |
|
1103 * |
|
1104 * Unfortunately, a bug in Windows spawn/exec impementation prevents |
|
1105 * this from completely working. All the Windows POSIX process creation |
|
1106 * interfaces are implemented as wrappers around the native Windows |
|
1107 * function CreateProcess(). CreateProcess() takes a single string |
|
1108 * to specify command line options and arguments, so the POSIX routine |
|
1109 * wrappers build a single string from the argv[] array and in the |
|
1110 * process, any quoting information is lost. |
|
1111 * |
|
1112 * The solution to this to get the original command line, to process it |
|
1113 * to remove the new multiple JRE options (if any) as was done for argv |
|
1114 * in the common SelectVersion() routine and finally to pass it directly |
|
1115 * to the native CreateProcess() Windows process control interface. |
|
1116 */ |
|
1117 { |
|
1118 char *cmdline; |
|
1119 char *p; |
|
1120 char *np; |
|
1121 char *ocl; |
|
1122 char *ccl; |
|
1123 char *unquoted; |
|
1124 DWORD exitCode; |
|
1125 STARTUPINFO si; |
|
1126 PROCESS_INFORMATION pi; |
|
1127 |
|
1128 /* |
|
1129 * The following code block gets and processes the original command |
|
1130 * line, replacing the argv[0] equivalent in the command line with |
|
1131 * the path to the new executable and removing the appropriate |
|
1132 * Multiple JRE support options. Note that similar logic exists |
|
1133 * in the platform independent SelectVersion routine, but is |
|
1134 * replicated here due to the syntax of CreateProcess(). |
|
1135 * |
|
1136 * The magic "+ 4" characters added to the command line length are |
|
1137 * 2 possible quotes around the path (argv[0]), a space after the |
|
1138 * path and a terminating null character. |
|
1139 */ |
|
1140 ocl = GetCommandLine(); |
|
1141 np = ccl = JLI_StringDup(ocl); |
|
1142 p = nextarg(&np); /* Discard argv[0] */ |
|
1143 cmdline = (char *)JLI_MemAlloc(strlen(path) + strlen(np) + 4); |
|
1144 if (strchr(path, (int)' ') == NULL && strchr(path, (int)'\t') == NULL) |
|
1145 cmdline = strcpy(cmdline, path); |
|
1146 else |
|
1147 cmdline = strcat(strcat(strcpy(cmdline, "\""), path), "\""); |
|
1148 |
|
1149 while (*np != (char)0) { /* While more command-line */ |
|
1150 p = nextarg(&np); |
|
1151 if (*p != (char)0) { /* If a token was isolated */ |
|
1152 unquoted = unquote(p); |
|
1153 if (*unquoted == '-') { /* Looks like an option */ |
|
1154 if (strcmp(unquoted, "-classpath") == 0 || |
|
1155 strcmp(unquoted, "-cp") == 0) { /* Unique cp syntax */ |
|
1156 cmdline = strcat(strcat(cmdline, " "), p); |
|
1157 p = nextarg(&np); |
|
1158 if (*p != (char)0) /* If a token was isolated */ |
|
1159 cmdline = strcat(strcat(cmdline, " "), p); |
|
1160 } else if (strncmp(unquoted, "-version:", 9) != 0 && |
|
1161 strcmp(unquoted, "-jre-restrict-search") != 0 && |
|
1162 strcmp(unquoted, "-no-jre-restrict-search") != 0) { |
|
1163 cmdline = strcat(strcat(cmdline, " "), p); |
|
1164 } |
|
1165 } else { /* End of options */ |
|
1166 cmdline = strcat(strcat(cmdline, " "), p); |
|
1167 cmdline = strcat(strcat(cmdline, " "), np); |
|
1168 JLI_MemFree((void *)unquoted); |
|
1169 break; |
|
1170 } |
|
1171 JLI_MemFree((void *)unquoted); |
|
1172 } |
|
1173 } |
|
1174 JLI_MemFree((void *)ccl); |
|
1175 |
|
1176 if (_launcher_debug) { |
|
1177 np = ccl = JLI_StringDup(cmdline); |
|
1178 p = nextarg(&np); |
|
1179 printf("ReExec Command: %s (%s)\n", path, p); |
|
1180 printf("ReExec Args: %s\n", np); |
|
1181 JLI_MemFree((void *)ccl); |
|
1182 } |
|
1183 (void)fflush(stdout); |
|
1184 (void)fflush(stderr); |
|
1185 |
|
1186 /* |
|
1187 * The following code is modeled after a model presented in the |
|
1188 * Microsoft Technical Article "Moving Unix Applications to |
|
1189 * Windows NT" (March 6, 1994) and "Creating Processes" on MSDN |
|
1190 * (Februrary 2005). It approximates UNIX spawn semantics with |
|
1191 * the parent waiting for termination of the child. |
|
1192 */ |
|
1193 memset(&si, 0, sizeof(si)); |
|
1194 si.cb =sizeof(STARTUPINFO); |
|
1195 memset(&pi, 0, sizeof(pi)); |
|
1196 |
|
1197 if (!CreateProcess((LPCTSTR)path, /* executable name */ |
|
1198 (LPTSTR)cmdline, /* command line */ |
|
1199 (LPSECURITY_ATTRIBUTES)NULL, /* process security attr. */ |
|
1200 (LPSECURITY_ATTRIBUTES)NULL, /* thread security attr. */ |
|
1201 (BOOL)TRUE, /* inherits system handles */ |
|
1202 (DWORD)0, /* creation flags */ |
|
1203 (LPVOID)NULL, /* environment block */ |
|
1204 (LPCTSTR)NULL, /* current directory */ |
|
1205 (LPSTARTUPINFO)&si, /* (in) startup information */ |
|
1206 (LPPROCESS_INFORMATION)&pi)) { /* (out) process information */ |
|
1207 ReportSysErrorMessage2("CreateProcess(%s, ...) failed: %s", |
|
1208 path, JNI_TRUE); |
|
1209 exit(1); |
|
1210 } |
|
1211 |
|
1212 if (WaitForSingleObject(pi.hProcess, INFINITE) != WAIT_FAILED) { |
|
1213 if (GetExitCodeProcess(pi.hProcess, &exitCode) == FALSE) |
|
1214 exitCode = 1; |
|
1215 } else { |
|
1216 ReportErrorMessage("WaitForSingleObject() failed.", JNI_TRUE); |
|
1217 exitCode = 1; |
|
1218 } |
|
1219 |
|
1220 CloseHandle(pi.hThread); |
|
1221 CloseHandle(pi.hProcess); |
|
1222 |
|
1223 exit(exitCode); |
|
1224 } |
|
1225 |
|
1226 } |
|
1227 |
|
1228 #endif /* ifndef GAMMA */ |
|
1229 |
|
1230 |
|
1231 /* |
|
1232 * Wrapper for platform dependent unsetenv function. |
|
1233 */ |
|
1234 int |
|
1235 UnsetEnv(char *name) |
|
1236 { |
|
1237 int ret; |
|
1238 char *buf = JLI_MemAlloc(strlen(name) + 2); |
|
1239 buf = strcat(strcpy(buf, name), "="); |
|
1240 ret = _putenv(buf); |
|
1241 JLI_MemFree(buf); |
|
1242 return (ret); |
|
1243 } |
|
1244 |
|
1245 /* --- Splash Screen shared library support --- */ |
|
1246 |
|
1247 static const char* SPLASHSCREEN_SO = "\\bin\\splashscreen.dll"; |
|
1248 |
|
1249 static HMODULE hSplashLib = NULL; |
|
1250 |
|
1251 void* SplashProcAddress(const char* name) { |
|
1252 char libraryPath[MAXPATHLEN]; /* some extra space for strcat'ing SPLASHSCREEN_SO */ |
|
1253 |
|
1254 if (!GetJREPath(libraryPath, MAXPATHLEN)) { |
|
1255 return NULL; |
|
1256 } |
|
1257 if (strlen(libraryPath)+strlen(SPLASHSCREEN_SO) >= MAXPATHLEN) { |
|
1258 return NULL; |
|
1259 } |
|
1260 strcat(libraryPath, SPLASHSCREEN_SO); |
|
1261 |
|
1262 if (!hSplashLib) { |
|
1263 hSplashLib = LoadLibrary(libraryPath); |
|
1264 } |
|
1265 if (hSplashLib) { |
|
1266 return GetProcAddress(hSplashLib, name); |
|
1267 } else { |
|
1268 return NULL; |
|
1269 } |
|
1270 } |
|
1271 |
|
1272 void SplashFreeLibrary() { |
|
1273 if (hSplashLib) { |
|
1274 FreeLibrary(hSplashLib); |
|
1275 hSplashLib = NULL; |
|
1276 } |
|
1277 } |
|
1278 |
|
1279 const char * |
|
1280 jlong_format_specifier() { |
|
1281 return "%I64d"; |
|
1282 } |
|
1283 |
|
1284 /* |
|
1285 * Block current thread and continue execution in a new thread |
|
1286 */ |
|
1287 int |
|
1288 ContinueInNewThread(int (JNICALL *continuation)(void *), jlong stack_size, void * args) { |
|
1289 int rslt = 0; |
|
1290 unsigned thread_id; |
|
1291 |
|
1292 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION |
|
1293 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) |
|
1294 #endif |
|
1295 |
|
1296 /* |
|
1297 * STACK_SIZE_PARAM_IS_A_RESERVATION is what we want, but it's not |
|
1298 * supported on older version of Windows. Try first with the flag; and |
|
1299 * if that fails try again without the flag. See MSDN document or HotSpot |
|
1300 * source (os_win32.cpp) for details. |
|
1301 */ |
|
1302 HANDLE thread_handle = |
|
1303 (HANDLE)_beginthreadex(NULL, |
|
1304 (unsigned)stack_size, |
|
1305 continuation, |
|
1306 args, |
|
1307 STACK_SIZE_PARAM_IS_A_RESERVATION, |
|
1308 &thread_id); |
|
1309 if (thread_handle == NULL) { |
|
1310 thread_handle = |
|
1311 (HANDLE)_beginthreadex(NULL, |
|
1312 (unsigned)stack_size, |
|
1313 continuation, |
|
1314 args, |
|
1315 0, |
|
1316 &thread_id); |
|
1317 } |
|
1318 |
|
1319 /* AWT preloading (AFTER main thread start) */ |
|
1320 #ifdef ENABLE_AWT_PRELOAD |
|
1321 /* D3D preloading */ |
|
1322 if (awtPreloadD3D != 0) { |
|
1323 char *envValue; |
|
1324 /* D3D routines checks env.var J2D_D3D if no appropriate |
|
1325 * command line params was specified |
|
1326 */ |
|
1327 envValue = getenv("J2D_D3D"); |
|
1328 if (envValue != NULL && stricmp(envValue, "false") == 0) { |
|
1329 awtPreloadD3D = 0; |
|
1330 } |
|
1331 /* Test that AWT preloading isn't disabled by J2D_D3D_PRELOAD env.var */ |
|
1332 envValue = getenv("J2D_D3D_PRELOAD"); |
|
1333 if (envValue != NULL && stricmp(envValue, "false") == 0) { |
|
1334 awtPreloadD3D = 0; |
|
1335 } |
|
1336 if (awtPreloadD3D < 0) { |
|
1337 /* If awtPreloadD3D is still undefined (-1), test |
|
1338 * if it is turned on by J2D_D3D_PRELOAD env.var. |
|
1339 * By default it's turned OFF. |
|
1340 */ |
|
1341 awtPreloadD3D = 0; |
|
1342 if (envValue != NULL && stricmp(envValue, "true") == 0) { |
|
1343 awtPreloadD3D = 1; |
|
1344 } |
|
1345 } |
|
1346 } |
|
1347 if (awtPreloadD3D) { |
|
1348 AWTPreload(D3D_PRELOAD_FUNC); |
|
1349 } |
|
1350 #endif /* ENABLE_AWT_PRELOAD */ |
|
1351 |
|
1352 if (thread_handle) { |
|
1353 WaitForSingleObject(thread_handle, INFINITE); |
|
1354 GetExitCodeThread(thread_handle, &rslt); |
|
1355 CloseHandle(thread_handle); |
|
1356 } else { |
|
1357 rslt = continuation(args); |
|
1358 } |
|
1359 |
|
1360 #ifdef ENABLE_AWT_PRELOAD |
|
1361 if (awtPreloaded) { |
|
1362 AWTPreloadStop(); |
|
1363 } |
|
1364 #endif /* ENABLE_AWT_PRELOAD */ |
|
1365 |
|
1366 return rslt; |
|
1367 } |
|
1368 |
|
1369 /* Linux only, empty on windows. */ |
|
1370 void SetJavaLauncherPlatformProps() {} |
|
1371 |
|
1372 |
|
1373 //============================== |
|
1374 // AWT preloading |
|
1375 #ifdef ENABLE_AWT_PRELOAD |
|
1376 |
|
1377 typedef int FnPreloadStart(void); |
|
1378 typedef void FnPreloadStop(void); |
|
1379 static FnPreloadStop *fnPreloadStop = NULL; |
|
1380 static HMODULE hPreloadAwt = NULL; |
|
1381 |
|
1382 /* |
|
1383 * Starts AWT preloading |
|
1384 */ |
|
1385 int AWTPreload(const char *funcName) |
|
1386 { |
|
1387 int result = -1; |
|
1388 |
|
1389 // load AWT library once (if several preload function should be called) |
|
1390 if (hPreloadAwt == NULL) { |
|
1391 // awt.dll is not loaded yet |
|
1392 char libraryPath[MAXPATHLEN]; |
|
1393 int jrePathLen = 0; |
|
1394 HMODULE hJava = NULL; |
|
1395 HMODULE hVerify = NULL; |
|
1396 |
|
1397 while (1) { |
|
1398 // awt.dll depends on jvm.dll & java.dll; |
|
1399 // jvm.dll is already loaded, so we need only java.dll; |
|
1400 // java.dll depends on MSVCRT lib & verify.dll. |
|
1401 if (!GetJREPath(libraryPath, MAXPATHLEN)) { |
|
1402 break; |
|
1403 } |
|
1404 |
|
1405 // save path length |
|
1406 jrePathLen = strlen(libraryPath); |
|
1407 |
|
1408 // load msvcrt 1st |
|
1409 LoadMSVCRT(); |
|
1410 |
|
1411 // load verify.dll |
|
1412 strcat(libraryPath, "\\bin\\verify.dll"); |
|
1413 hVerify = LoadLibrary(libraryPath); |
|
1414 if (hVerify == NULL) { |
|
1415 break; |
|
1416 } |
|
1417 |
|
1418 // restore jrePath |
|
1419 libraryPath[jrePathLen] = 0; |
|
1420 // load java.dll |
|
1421 strcat(libraryPath, "\\bin\\" JAVA_DLL); |
|
1422 hJava = LoadLibrary(libraryPath); |
|
1423 if (hJava == NULL) { |
|
1424 break; |
|
1425 } |
|
1426 |
|
1427 // restore jrePath |
|
1428 libraryPath[jrePathLen] = 0; |
|
1429 // load awt.dll |
|
1430 strcat(libraryPath, "\\bin\\awt.dll"); |
|
1431 hPreloadAwt = LoadLibrary(libraryPath); |
|
1432 if (hPreloadAwt == NULL) { |
|
1433 break; |
|
1434 } |
|
1435 |
|
1436 // get "preloadStop" func ptr |
|
1437 fnPreloadStop = (FnPreloadStop *)GetProcAddress(hPreloadAwt, "preloadStop"); |
|
1438 |
|
1439 break; |
|
1440 } |
|
1441 } |
|
1442 |
|
1443 if (hPreloadAwt != NULL) { |
|
1444 FnPreloadStart *fnInit = (FnPreloadStart *)GetProcAddress(hPreloadAwt, funcName); |
|
1445 if (fnInit != NULL) { |
|
1446 // don't forget to stop preloading |
|
1447 awtPreloaded = 1; |
|
1448 |
|
1449 result = fnInit(); |
|
1450 } |
|
1451 } |
|
1452 |
|
1453 return result; |
|
1454 } |
|
1455 |
|
1456 /* |
|
1457 * Terminates AWT preloading |
|
1458 */ |
|
1459 void AWTPreloadStop() { |
|
1460 if (fnPreloadStop != NULL) { |
|
1461 fnPreloadStop(); |
|
1462 } |
|
1463 } |
|
1464 |
|
1465 #endif /* ENABLE_AWT_PRELOAD */ |