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0
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1 /*
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470
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2 * Copyright 1998-2008 Sun Microsystems, Inc. All Rights Reserved.
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0
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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 /*
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26 * Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK,
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27 * search "GAMMA" for gamma specific changes.
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28 */
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29
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30 #include "java.h"
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31 #include <dirent.h>
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32 #include <dlfcn.h>
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33 #include <fcntl.h>
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34 #include <inttypes.h>
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35 #include <stdio.h>
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36 #include <string.h>
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37 #include <stdlib.h>
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38 #include <limits.h>
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39 #include <sys/stat.h>
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40 #include <unistd.h>
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41 #include <sys/types.h>
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42
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43 #ifndef GAMMA
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44 #include "manifest_info.h"
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45 #include "version_comp.h"
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46 #endif
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47
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48 #define JVM_DLL "libjvm.so"
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49 #define JAVA_DLL "libjava.so"
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50
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51 #ifndef GAMMA /* launcher.make defines ARCH */
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52
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53 /*
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54 * If a processor / os combination has the ability to run binaries of
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55 * two data models and cohabitation of jre/jdk bits with both data
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56 * models is supported, then DUAL_MODE is defined. When DUAL_MODE is
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57 * defined, the architecture names for the narrow and wide version of
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58 * the architecture are defined in BIG_ARCH and SMALL_ARCH. Currently
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59 * only Solaris on sparc/sparcv9 and i586/amd64 is DUAL_MODE; linux
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60 * i586/amd64 could be defined as DUAL_MODE but that is not the
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61 * current policy.
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62 */
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63
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64 #ifdef _LP64
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65
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66 # ifdef ia64
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67 # define ARCH "ia64"
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68 # elif defined(amd64)
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69 # define ARCH "amd64"
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70 # elif defined(__sparc)
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71 # define ARCH "sparcv9"
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72 # else
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73 # define ARCH "unknown" /* unknown 64-bit architecture */
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74 # endif
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75
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76 #else /* 32-bit data model */
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77
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78 # ifdef i586
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79 # define ARCH "i386"
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80 # elif defined(__sparc)
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81 # define ARCH "sparc"
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82 # endif
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83
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84 #endif /* _LP64 */
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85
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86 #ifdef __sun
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87 # define DUAL_MODE
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88 # ifdef __sparc
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89 # define BIG_ARCH "sparcv9"
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90 # define SMALL_ARCH "sparc"
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91 # else
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92 # define BIG_ARCH "amd64"
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93 # define SMALL_ARCH "i386"
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94 # endif
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95 # include <sys/systeminfo.h>
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96 # include <sys/elf.h>
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97 # include <stdio.h>
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98 #else
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99 # ifndef ARCH
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100 # include <sys/systeminfo.h>
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101 # endif
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102 #endif
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103
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104 #endif /* ifndef GAMMA */
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105
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106 /* pointer to environment */
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107 extern char **environ;
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108
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109 #ifndef GAMMA
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110
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111 /*
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112 * A collection of useful strings. One should think of these as #define
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113 * entries, but actual strings can be more efficient (with many compilers).
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114 */
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115 #ifdef __linux__
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116 static const char *system_dir = "/usr/java";
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117 static const char *user_dir = "/java";
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118 #else /* Solaris */
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119 static const char *system_dir = "/usr/jdk";
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120 static const char *user_dir = "/jdk";
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121 #endif
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122
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123 #endif /* ifndef GAMMA */
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124
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125 /*
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126 * Flowchart of launcher execs and options processing on unix
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127 *
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128 * The selection of the proper vm shared library to open depends on
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129 * several classes of command line options, including vm "flavor"
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130 * options (-client, -server) and the data model options, -d32 and
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131 * -d64, as well as a version specification which may have come from
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132 * the command line or from the manifest of an executable jar file.
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133 * The vm selection options are not passed to the running
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134 * virtual machine; they must be screened out by the launcher.
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135 *
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136 * The version specification (if any) is processed first by the
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137 * platform independent routine SelectVersion. This may result in
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138 * the exec of the specified launcher version.
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139 *
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140 * Typically, the launcher execs at least once to ensure a suitable
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141 * LD_LIBRARY_PATH is in effect for the process. The first exec
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142 * screens out all the data model options; leaving the choice of data
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143 * model implicit in the binary selected to run. However, in case no
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144 * exec is done, the data model options are screened out before the vm
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145 * is invoked.
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146 *
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147 * incoming argv ------------------------------
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148 * | |
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149 * \|/ |
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150 * CheckJVMType |
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151 * (removes -client, -server, etc.) |
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152 * \|/
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153 * CreateExecutionEnvironment
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154 * (removes -d32 and -d64,
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155 * determines desired data model,
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156 * sets up LD_LIBRARY_PATH,
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157 * and exec's)
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158 * |
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159 * --------------------------------------------
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160 * |
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161 * \|/
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162 * exec child 1 incoming argv -----------------
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163 * | |
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164 * \|/ |
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165 * CheckJVMType |
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166 * (removes -client, -server, etc.) |
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167 * | \|/
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168 * | CreateExecutionEnvironment
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169 * | (verifies desired data model
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170 * | is running and acceptable
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171 * | LD_LIBRARY_PATH;
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172 * | no-op in child)
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173 * |
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174 * \|/
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175 * TranslateDashJArgs...
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176 * (Prepare to pass args to vm)
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177 * |
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178 * |
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179 * |
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180 * \|/
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181 * ParseArguments
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182 * (ignores -d32 and -d64,
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183 * processes version options,
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184 * creates argument list for vm,
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185 * etc.)
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186 *
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187 */
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188
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189 static char *SetExecname(char **argv);
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190 static char * GetExecname();
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191 static jboolean GetJVMPath(const char *jrepath, const char *jvmtype,
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192 char *jvmpath, jint jvmpathsize, char * arch);
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193 static jboolean GetJREPath(char *path, jint pathsize, char * arch, jboolean speculative);
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194
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195 const char *
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196 GetArch()
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197 {
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198 static char *arch = NULL;
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199 static char buf[12];
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200 if (arch) {
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201 return arch;
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202 }
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203
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204 #ifdef ARCH
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205 strcpy(buf, ARCH);
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206 #else
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207 sysinfo(SI_ARCHITECTURE, buf, sizeof(buf));
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208 #endif
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209 arch = buf;
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210 return arch;
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211 }
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212
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213 void
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214 CreateExecutionEnvironment(int *_argcp,
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215 char ***_argvp,
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216 char jrepath[],
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217 jint so_jrepath,
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218 char jvmpath[],
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219 jint so_jvmpath,
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220 char **original_argv) {
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221 /*
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222 * First, determine if we are running the desired data model. If we
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223 * are running the desired data model, all the error messages
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224 * associated with calling GetJREPath, ReadKnownVMs, etc. should be
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225 * output. However, if we are not running the desired data model,
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226 * some of the errors should be suppressed since it is more
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227 * informative to issue an error message based on whether or not the
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228 * os/processor combination has dual mode capabilities.
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229 */
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230
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231 char *execname = NULL;
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232 int original_argc = *_argcp;
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233 jboolean jvmpathExists;
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234
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235 /* Compute the name of the executable */
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236 execname = SetExecname(*_argvp);
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237
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238 #ifndef GAMMA
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239 /* Set the LD_LIBRARY_PATH environment variable, check data model
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240 flags, and exec process, if needed */
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241 {
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242 char *arch = (char *)GetArch(); /* like sparc or sparcv9 */
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243 char * jvmtype = NULL;
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244 int argc = *_argcp;
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245 char **argv = original_argv;
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246
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247 char *runpath = NULL; /* existing effective LD_LIBRARY_PATH
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248 setting */
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249
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250 int running = /* What data model is being ILP32 =>
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251 32 bit vm; LP64 => 64 bit vm */
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252 #ifdef _LP64
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253 64;
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254 #else
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255 32;
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256 #endif
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257
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258 int wanted = running; /* What data mode is being
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259 asked for? Current model is
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260 fine unless another model
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261 is asked for */
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262
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263 char* new_runpath = NULL; /* desired new LD_LIBRARY_PATH string */
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264 char* newpath = NULL; /* path on new LD_LIBRARY_PATH */
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265 char* lastslash = NULL;
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266
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267 char** newenvp = NULL; /* current environment */
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268
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269 char** newargv = NULL;
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270 int newargc = 0;
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271 #ifdef __sun
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272 char* dmpath = NULL; /* data model specific LD_LIBRARY_PATH,
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273 Solaris only */
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274 #endif
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275
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276 /*
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277 * Starting in 1.5, all unix platforms accept the -d32 and -d64
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278 * options. On platforms where only one data-model is supported
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279 * (e.g. ia-64 Linux), using the flag for the other data model is
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280 * an error and will terminate the program.
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281 */
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282
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283 { /* open new scope to declare local variables */
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284 int i;
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285
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286 newargv = (char **)MemAlloc((argc+1) * sizeof(*newargv));
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287 newargv[newargc++] = argv[0];
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288
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289 /* scan for data model arguments and remove from argument list;
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290 last occurrence determines desired data model */
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291 for (i=1; i < argc; i++) {
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292
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293 if (strcmp(argv[i], "-J-d64") == 0 || strcmp(argv[i], "-d64") == 0) {
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294 wanted = 64;
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295 continue;
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296 }
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297 if (strcmp(argv[i], "-J-d32") == 0 || strcmp(argv[i], "-d32") == 0) {
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298 wanted = 32;
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299 continue;
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300 }
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301 newargv[newargc++] = argv[i];
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302
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303 #ifdef JAVA_ARGS
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304 if (argv[i][0] != '-')
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305 continue;
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306 #else
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307 if (strcmp(argv[i], "-classpath") == 0 || strcmp(argv[i], "-cp") == 0) {
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308 i++;
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309 if (i >= argc) break;
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310 newargv[newargc++] = argv[i];
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311 continue;
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312 }
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313 if (argv[i][0] != '-') { i++; break; }
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314 #endif
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315 }
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316
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317 /* copy rest of args [i .. argc) */
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318 while (i < argc) {
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319 newargv[newargc++] = argv[i++];
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320 }
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321 newargv[newargc] = NULL;
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322
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323 /*
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324 * newargv has all proper arguments here
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325 */
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326
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327 argc = newargc;
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328 argv = newargv;
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329 }
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330
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331 /* If the data model is not changing, it is an error if the
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332 jvmpath does not exist */
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333 if (wanted == running) {
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334 /* Find out where the JRE is that we will be using. */
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335 if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) {
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336 fprintf(stderr, "Error: could not find Java 2 Runtime Environment.\n");
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337 exit(2);
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338 }
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339
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340 /* Find the specified JVM type */
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341 if (ReadKnownVMs(jrepath, arch, JNI_FALSE) < 1) {
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342 fprintf(stderr, "Error: no known VMs. (check for corrupt jvm.cfg file)\n");
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343 exit(1);
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344 }
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345
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346 jvmpath[0] = '\0';
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347 jvmtype = CheckJvmType(_argcp, _argvp, JNI_FALSE);
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348
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349 if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath, arch )) {
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350 fprintf(stderr, "Error: no `%s' JVM at `%s'.\n", jvmtype, jvmpath);
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351 exit(4);
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352 }
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353 } else { /* do the same speculatively or exit */
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354 #ifdef DUAL_MODE
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355 if (running != wanted) {
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356 /* Find out where the JRE is that we will be using. */
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357 if (!GetJREPath(jrepath, so_jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH), JNI_TRUE)) {
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358 goto EndDataModelSpeculate;
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359 }
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360
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361 /*
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362 * Read in jvm.cfg for target data model and process vm
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363 * selection options.
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364 */
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365 if (ReadKnownVMs(jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH), JNI_TRUE) < 1) {
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366 goto EndDataModelSpeculate;
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367 }
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368 jvmpath[0] = '\0';
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369 jvmtype = CheckJvmType(_argcp, _argvp, JNI_TRUE);
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370 /* exec child can do error checking on the existence of the path */
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371 jvmpathExists = GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath,
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372 ((wanted==64)?BIG_ARCH:SMALL_ARCH));
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373
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374 }
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375 EndDataModelSpeculate: /* give up and let other code report error message */
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376 ;
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377 #else
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378 fprintf(stderr, "Running a %d-bit JVM is not supported on this platform.\n", wanted);
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379 exit(1);
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380 #endif
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381 }
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382
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383 /*
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384 * We will set the LD_LIBRARY_PATH as follows:
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385 *
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386 * o $JVMPATH (directory portion only)
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387 * o $JRE/lib/$ARCH
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388 * o $JRE/../lib/$ARCH
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389 *
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390 * followed by the user's previous effective LD_LIBRARY_PATH, if
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391 * any.
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392 */
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393
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394 #ifdef __sun
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395 /*
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396 * Starting in Solaris 7, ld.so.1 supports three LD_LIBRARY_PATH
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397 * variables:
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398 *
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399 * 1. LD_LIBRARY_PATH -- used for 32 and 64 bit searches if
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400 * data-model specific variables are not set.
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401 *
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402 * 2. LD_LIBRARY_PATH_64 -- overrides and replaces LD_LIBRARY_PATH
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403 * for 64-bit binaries.
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404 *
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405 * 3. LD_LIBRARY_PATH_32 -- overrides and replaces LD_LIBRARY_PATH
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406 * for 32-bit binaries.
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407 *
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408 * The vm uses LD_LIBRARY_PATH to set the java.library.path system
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409 * property. To shield the vm from the complication of multiple
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410 * LD_LIBRARY_PATH variables, if the appropriate data model
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411 * specific variable is set, we will act as if LD_LIBRARY_PATH had
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412 * the value of the data model specific variant and the data model
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413 * specific variant will be unset. Note that the variable for the
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414 * *wanted* data model must be used (if it is set), not simply the
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415 * current running data model.
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|
|
416 */
|
|
|
417
|
|
|
418 switch(wanted) {
|
|
|
419 case 0:
|
|
|
420 if(running == 32) {
|
|
|
421 dmpath = getenv("LD_LIBRARY_PATH_32");
|
|
|
422 wanted = 32;
|
|
|
423 }
|
|
|
424 else {
|
|
|
425 dmpath = getenv("LD_LIBRARY_PATH_64");
|
|
|
426 wanted = 64;
|
|
|
427 }
|
|
|
428 break;
|
|
|
429
|
|
|
430 case 32:
|
|
|
431 dmpath = getenv("LD_LIBRARY_PATH_32");
|
|
|
432 break;
|
|
|
433
|
|
|
434 case 64:
|
|
|
435 dmpath = getenv("LD_LIBRARY_PATH_64");
|
|
|
436 break;
|
|
|
437
|
|
|
438 default:
|
|
|
439 fprintf(stderr, "Improper value at line %d.", __LINE__);
|
|
|
440 exit(1); /* unknown value in wanted */
|
|
|
441 break;
|
|
|
442 }
|
|
|
443
|
|
|
444 /*
|
|
|
445 * If dmpath is NULL, the relevant data model specific variable is
|
|
|
446 * not set and normal LD_LIBRARY_PATH should be used.
|
|
|
447 */
|
|
|
448 if( dmpath == NULL) {
|
|
|
449 runpath = getenv("LD_LIBRARY_PATH");
|
|
|
450 }
|
|
|
451 else {
|
|
|
452 runpath = dmpath;
|
|
|
453 }
|
|
|
454 #else
|
|
|
455 /*
|
|
|
456 * If not on Solaris, assume only a single LD_LIBRARY_PATH
|
|
|
457 * variable.
|
|
|
458 */
|
|
|
459 runpath = getenv("LD_LIBRARY_PATH");
|
|
|
460 #endif /* __sun */
|
|
|
461
|
|
|
462 #ifdef __linux
|
|
|
463 /*
|
|
|
464 * On linux, if a binary is running as sgid or suid, glibc sets
|
|
|
465 * LD_LIBRARY_PATH to the empty string for security purposes. (In
|
|
|
466 * contrast, on Solaris the LD_LIBRARY_PATH variable for a
|
|
|
467 * privileged binary does not lose its settings; but the dynamic
|
|
|
468 * linker does apply more scrutiny to the path.) The launcher uses
|
|
|
469 * the value of LD_LIBRARY_PATH to prevent an exec loop.
|
|
|
470 * Therefore, if we are running sgid or suid, this function's
|
|
|
471 * setting of LD_LIBRARY_PATH will be ineffective and we should
|
|
|
472 * return from the function now. Getting the right libraries to
|
|
|
473 * be found must be handled through other mechanisms.
|
|
|
474 */
|
|
|
475 if((getgid() != getegid()) || (getuid() != geteuid()) ) {
|
|
|
476 return;
|
|
|
477 }
|
|
|
478 #endif
|
|
|
479
|
|
|
480 /* runpath contains current effective LD_LIBRARY_PATH setting */
|
|
|
481
|
|
|
482 jvmpath = strdup(jvmpath);
|
|
|
483 new_runpath = MemAlloc( ((runpath!=NULL)?strlen(runpath):0) +
|
|
|
484 2*strlen(jrepath) + 2*strlen(arch) +
|
|
|
485 strlen(jvmpath) + 52);
|
|
|
486 newpath = new_runpath + strlen("LD_LIBRARY_PATH=");
|
|
|
487
|
|
|
488
|
|
|
489 /*
|
|
|
490 * Create desired LD_LIBRARY_PATH value for target data model.
|
|
|
491 */
|
|
|
492 {
|
|
|
493 /* remove the name of the .so from the JVM path */
|
|
|
494 lastslash = strrchr(jvmpath, '/');
|
|
|
495 if (lastslash)
|
|
|
496 *lastslash = '\0';
|
|
|
497
|
|
|
498
|
|
|
499 /* jvmpath, ((running != wanted)?((wanted==64)?"/"BIG_ARCH:"/.."):""), */
|
|
|
500
|
|
|
501 sprintf(new_runpath, "LD_LIBRARY_PATH="
|
|
|
502 "%s:"
|
|
|
503 "%s/lib/%s:"
|
|
|
504 "%s/../lib/%s",
|
|
|
505 jvmpath,
|
|
|
506 #ifdef DUAL_MODE
|
|
|
507 jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH),
|
|
|
508 jrepath, ((wanted==64)?BIG_ARCH:SMALL_ARCH)
|
|
|
509 #else
|
|
|
510 jrepath, arch,
|
|
|
511 jrepath, arch
|
|
|
512 #endif
|
|
|
513 );
|
|
|
514
|
|
|
515
|
|
|
516 /*
|
|
|
517 * Check to make sure that the prefix of the current path is the
|
|
|
518 * desired environment variable setting.
|
|
|
519 */
|
|
|
520 if (runpath != NULL &&
|
|
|
521 strncmp(newpath, runpath, strlen(newpath))==0 &&
|
|
|
522 (runpath[strlen(newpath)] == 0 || runpath[strlen(newpath)] == ':') &&
|
|
|
523 (running == wanted) /* data model does not have to be changed */
|
|
|
524 #ifdef __sun
|
|
|
525 && (dmpath == NULL) /* data model specific variables not set */
|
|
|
526 #endif
|
|
|
527 ) {
|
|
|
528
|
|
|
529 return;
|
|
|
530
|
|
|
531 }
|
|
|
532 }
|
|
|
533
|
|
|
534 /*
|
|
|
535 * Place the desired environment setting onto the prefix of
|
|
|
536 * LD_LIBRARY_PATH. Note that this prevents any possible infinite
|
|
|
537 * loop of execv() because we test for the prefix, above.
|
|
|
538 */
|
|
|
539 if (runpath != 0) {
|
|
|
540 strcat(new_runpath, ":");
|
|
|
541 strcat(new_runpath, runpath);
|
|
|
542 }
|
|
|
543
|
|
|
544 if( putenv(new_runpath) != 0) {
|
|
|
545 exit(1); /* problem allocating memory; LD_LIBRARY_PATH not set
|
|
|
546 properly */
|
|
|
547 }
|
|
|
548
|
|
|
549 /*
|
|
|
550 * Unix systems document that they look at LD_LIBRARY_PATH only
|
|
|
551 * once at startup, so we have to re-exec the current executable
|
|
|
552 * to get the changed environment variable to have an effect.
|
|
|
553 */
|
|
|
554
|
|
|
555 #ifdef __sun
|
|
|
556 /*
|
|
|
557 * If dmpath is not NULL, remove the data model specific string
|
|
|
558 * in the environment for the exec'ed child.
|
|
|
559 */
|
|
|
560
|
|
|
561 if( dmpath != NULL)
|
|
|
562 (void)UnsetEnv((wanted==32)?"LD_LIBRARY_PATH_32":"LD_LIBRARY_PATH_64");
|
|
|
563 #endif
|
|
|
564
|
|
|
565 newenvp = environ;
|
|
|
566
|
|
|
567 {
|
|
|
568 char *newexec = execname;
|
|
|
569 #ifdef DUAL_MODE
|
|
|
570 /*
|
|
|
571 * If the data model is being changed, the path to the
|
|
|
572 * executable must be updated accordingly; the executable name
|
|
|
573 * and directory the executable resides in are separate. In the
|
|
|
574 * case of 32 => 64, the new bits are assumed to reside in, e.g.
|
|
|
575 * "olddir/BIGARCH/execname"; in the case of 64 => 32,
|
|
|
576 * the bits are assumed to be in "olddir/../execname". For example,
|
|
|
577 *
|
|
|
578 * olddir/sparcv9/execname
|
|
|
579 * olddir/amd64/execname
|
|
|
580 *
|
|
|
581 * for Solaris SPARC and Linux amd64, respectively.
|
|
|
582 */
|
|
|
583
|
|
|
584 if (running != wanted) {
|
|
|
585 char *oldexec = strcpy(MemAlloc(strlen(execname) + 1), execname);
|
|
|
586 char *olddir = oldexec;
|
|
|
587 char *oldbase = strrchr(oldexec, '/');
|
|
|
588
|
|
|
589
|
|
|
590 newexec = MemAlloc(strlen(execname) + 20);
|
|
|
591 *oldbase++ = 0;
|
|
|
592 sprintf(newexec, "%s/%s/%s", olddir,
|
|
|
593 ((wanted==64) ? BIG_ARCH : ".."), oldbase);
|
|
|
594 argv[0] = newexec;
|
|
|
595 }
|
|
|
596 #endif
|
|
|
597
|
|
|
598 execve(newexec, argv, newenvp);
|
|
|
599 perror("execve()");
|
|
|
600
|
|
|
601 fprintf(stderr, "Error trying to exec %s.\n", newexec);
|
|
|
602 fprintf(stderr, "Check if file exists and permissions are set correctly.\n");
|
|
|
603
|
|
|
604 #ifdef DUAL_MODE
|
|
|
605 if (running != wanted) {
|
|
|
606 fprintf(stderr, "Failed to start a %d-bit JVM process from a %d-bit JVM.\n",
|
|
|
607 wanted, running);
|
|
|
608 # ifdef __sun
|
|
|
609
|
|
|
610 # ifdef __sparc
|
|
|
611 fprintf(stderr, "Verify all necessary J2SE components have been installed.\n" );
|
|
|
612 fprintf(stderr,
|
|
|
613 "(Solaris SPARC 64-bit components must be installed after 32-bit components.)\n" );
|
|
|
614 # else
|
|
|
615 fprintf(stderr, "Either 64-bit processes are not supported by this platform\n");
|
|
|
616 fprintf(stderr, "or the 64-bit components have not been installed.\n");
|
|
|
617 # endif
|
|
|
618 }
|
|
|
619 # endif
|
|
|
620 #endif
|
|
|
621
|
|
|
622 }
|
|
|
623
|
|
|
624 exit(1);
|
|
|
625 }
|
|
|
626
|
|
|
627 #else /* ifndef GAMMA */
|
|
|
628
|
|
|
629 /* gamma launcher is simpler in that it doesn't handle VM flavors, data */
|
|
|
630 /* model, LD_LIBRARY_PATH, etc. Assuming everything is set-up correctly */
|
|
|
631 /* all we need to do here is to return correct path names. See also */
|
|
|
632 /* GetJVMPath() and GetApplicationHome(). */
|
|
|
633
|
|
|
634 { char *arch = (char *)GetArch(); /* like sparc or sparcv9 */
|
|
|
635 char *p;
|
|
|
636
|
|
|
637 if (!GetJREPath(jrepath, so_jrepath, arch, JNI_FALSE) ) {
|
|
|
638 fprintf(stderr, "Error: could not find Java 2 Runtime Environment.\n");
|
|
|
639 exit(2);
|
|
|
640 }
|
|
|
641
|
|
|
642 if (!GetJVMPath(jrepath, NULL, jvmpath, so_jvmpath, arch )) {
|
|
|
643 fprintf(stderr, "Error: no JVM at `%s'.\n", jvmpath);
|
|
|
644 exit(4);
|
|
|
645 }
|
|
|
646 }
|
|
|
647
|
|
|
648 #endif /* ifndef GAMMA */
|
|
|
649 }
|
|
|
650
|
|
|
651
|
|
|
652 /*
|
|
|
653 * On Solaris VM choosing is done by the launcher (java.c).
|
|
|
654 */
|
|
|
655 static jboolean
|
|
|
656 GetJVMPath(const char *jrepath, const char *jvmtype,
|
|
|
657 char *jvmpath, jint jvmpathsize, char * arch)
|
|
|
658 {
|
|
|
659 struct stat s;
|
|
|
660
|
|
|
661 #ifndef GAMMA
|
|
|
662 if (strchr(jvmtype, '/')) {
|
|
|
663 sprintf(jvmpath, "%s/" JVM_DLL, jvmtype);
|
|
|
664 } else {
|
|
|
665 sprintf(jvmpath, "%s/lib/%s/%s/" JVM_DLL, jrepath, arch, jvmtype);
|
|
|
666 }
|
|
|
667 #else
|
|
|
668 /* For gamma launcher, JVM is either built-in or in the same directory. */
|
|
|
669 /* Either way we return "<exe_path>/libjvm.so" where <exe_path> is the */
|
|
|
670 /* directory where gamma launcher is located. */
|
|
|
671
|
|
|
672 char *p;
|
|
|
673
|
|
|
674 snprintf(jvmpath, jvmpathsize, "%s", GetExecname());
|
|
|
675 p = strrchr(jvmpath, '/');
|
|
|
676 if (p) {
|
|
|
677 /* replace executable name with libjvm.so */
|
|
|
678 snprintf(p + 1, jvmpathsize - (p + 1 - jvmpath), "%s", JVM_DLL);
|
|
|
679 } else {
|
|
|
680 /* this case shouldn't happen */
|
|
|
681 snprintf(jvmpath, jvmpathsize, "%s", JVM_DLL);
|
|
|
682 }
|
|
|
683 #endif
|
|
|
684
|
|
|
685 if (_launcher_debug)
|
|
|
686 printf("Does `%s' exist ... ", jvmpath);
|
|
|
687
|
|
|
688 if (stat(jvmpath, &s) == 0) {
|
|
|
689 if (_launcher_debug)
|
|
|
690 printf("yes.\n");
|
|
|
691 return JNI_TRUE;
|
|
|
692 } else {
|
|
|
693 if (_launcher_debug)
|
|
|
694 printf("no.\n");
|
|
|
695 return JNI_FALSE;
|
|
|
696 }
|
|
|
697 }
|
|
|
698
|
|
|
699 /*
|
|
|
700 * Find path to JRE based on .exe's location or registry settings.
|
|
|
701 */
|
|
|
702 static jboolean
|
|
|
703 GetJREPath(char *path, jint pathsize, char * arch, jboolean speculative)
|
|
|
704 {
|
|
|
705 char libjava[MAXPATHLEN];
|
|
|
706
|
|
|
707 if (GetApplicationHome(path, pathsize)) {
|
|
|
708 /* Is JRE co-located with the application? */
|
|
|
709 sprintf(libjava, "%s/lib/%s/" JAVA_DLL, path, arch);
|
|
|
710 if (access(libjava, F_OK) == 0) {
|
|
|
711 goto found;
|
|
|
712 }
|
|
|
713
|
|
|
714 /* Does the app ship a private JRE in <apphome>/jre directory? */
|
|
|
715 sprintf(libjava, "%s/jre/lib/%s/" JAVA_DLL, path, arch);
|
|
|
716 if (access(libjava, F_OK) == 0) {
|
|
|
717 strcat(path, "/jre");
|
|
|
718 goto found;
|
|
|
719 }
|
|
|
720 }
|
|
|
721
|
|
|
722 if (!speculative)
|
|
|
723 fprintf(stderr, "Error: could not find " JAVA_DLL "\n");
|
|
|
724 return JNI_FALSE;
|
|
|
725
|
|
|
726 found:
|
|
|
727 if (_launcher_debug)
|
|
|
728 printf("JRE path is %s\n", path);
|
|
|
729 return JNI_TRUE;
|
|
|
730 }
|
|
|
731
|
|
|
732 jboolean
|
|
|
733 LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn)
|
|
|
734 {
|
|
|
735 #ifdef GAMMA
|
|
|
736 /* JVM is directly linked with gamma launcher; no dlopen() */
|
|
|
737 ifn->CreateJavaVM = JNI_CreateJavaVM;
|
|
|
738 ifn->GetDefaultJavaVMInitArgs = JNI_GetDefaultJavaVMInitArgs;
|
|
|
739 return JNI_TRUE;
|
|
|
740 #else
|
|
|
741 Dl_info dlinfo;
|
|
|
742 void *libjvm;
|
|
|
743
|
|
|
744 if (_launcher_debug) {
|
|
|
745 printf("JVM path is %s\n", jvmpath);
|
|
|
746 }
|
|
|
747
|
|
|
748 libjvm = dlopen(jvmpath, RTLD_NOW + RTLD_GLOBAL);
|
|
|
749 if (libjvm == NULL) {
|
|
|
750 #if defined(__sparc) && !defined(_LP64) /* i.e. 32-bit sparc */
|
|
|
751 FILE * fp;
|
|
|
752 Elf32_Ehdr elf_head;
|
|
|
753 int count;
|
|
|
754 int location;
|
|
|
755
|
|
|
756 fp = fopen(jvmpath, "r");
|
|
|
757 if(fp == NULL)
|
|
|
758 goto error;
|
|
|
759
|
|
|
760 /* read in elf header */
|
|
|
761 count = fread((void*)(&elf_head), sizeof(Elf32_Ehdr), 1, fp);
|
|
|
762 fclose(fp);
|
|
|
763 if(count < 1)
|
|
|
764 goto error;
|
|
|
765
|
|
|
766 /*
|
|
|
767 * Check for running a server vm (compiled with -xarch=v8plus)
|
|
|
768 * on a stock v8 processor. In this case, the machine type in
|
|
|
769 * the elf header would not be included the architecture list
|
|
|
770 * provided by the isalist command, which is turn is gotten from
|
|
|
771 * sysinfo. This case cannot occur on 64-bit hardware and thus
|
|
|
772 * does not have to be checked for in binaries with an LP64 data
|
|
|
773 * model.
|
|
|
774 */
|
|
|
775 if(elf_head.e_machine == EM_SPARC32PLUS) {
|
|
|
776 char buf[257]; /* recommended buffer size from sysinfo man
|
|
|
777 page */
|
|
|
778 long length;
|
|
|
779 char* location;
|
|
|
780
|
|
|
781 length = sysinfo(SI_ISALIST, buf, 257);
|
|
|
782 if(length > 0) {
|
|
|
783 location = strstr(buf, "sparcv8plus ");
|
|
|
784 if(location == NULL) {
|
|
|
785 fprintf(stderr, "SPARC V8 processor detected; Server compiler requires V9 or better.\n");
|
|
|
786 fprintf(stderr, "Use Client compiler on V8 processors.\n");
|
|
|
787 fprintf(stderr, "Could not create the Java virtual machine.\n");
|
|
|
788 return JNI_FALSE;
|
|
|
789 }
|
|
|
790 }
|
|
|
791 }
|
|
|
792 #endif
|
|
|
793 fprintf(stderr, "dl failure on line %d", __LINE__);
|
|
|
794 goto error;
|
|
|
795 }
|
|
|
796
|
|
|
797 ifn->CreateJavaVM = (CreateJavaVM_t)
|
|
|
798 dlsym(libjvm, "JNI_CreateJavaVM");
|
|
|
799 if (ifn->CreateJavaVM == NULL)
|
|
|
800 goto error;
|
|
|
801
|
|
|
802 ifn->GetDefaultJavaVMInitArgs = (GetDefaultJavaVMInitArgs_t)
|
|
|
803 dlsym(libjvm, "JNI_GetDefaultJavaVMInitArgs");
|
|
|
804 if (ifn->GetDefaultJavaVMInitArgs == NULL)
|
|
|
805 goto error;
|
|
|
806
|
|
|
807 return JNI_TRUE;
|
|
|
808
|
|
|
809 error:
|
|
|
810 fprintf(stderr, "Error: failed %s, because %s\n", jvmpath, dlerror());
|
|
|
811 return JNI_FALSE;
|
|
|
812 #endif /* GAMMA */
|
|
|
813 }
|
|
|
814
|
|
|
815 /*
|
|
|
816 * Get the path to the file that has the usage message for -X options.
|
|
|
817 */
|
|
|
818 void
|
|
|
819 GetXUsagePath(char *buf, jint bufsize)
|
|
|
820 {
|
|
|
821 static const char Xusage_txt[] = "/Xusage.txt";
|
|
|
822 Dl_info dlinfo;
|
|
|
823
|
|
|
824 /* we use RTLD_NOW because of problems with ld.so.1 and green threads */
|
|
|
825 dladdr(dlsym(dlopen(JVM_DLL, RTLD_NOW), "JNI_CreateJavaVM"), &dlinfo);
|
|
|
826 strncpy(buf, (char *)dlinfo.dli_fname, bufsize - sizeof(Xusage_txt));
|
|
|
827
|
|
|
828 buf[bufsize-1] = '\0';
|
|
|
829 strcpy(strrchr(buf, '/'), Xusage_txt);
|
|
|
830 }
|
|
|
831
|
|
|
832 /*
|
|
|
833 * If app is "/foo/bin/javac", or "/foo/bin/sparcv9/javac" then put
|
|
|
834 * "/foo" into buf.
|
|
|
835 */
|
|
|
836 jboolean
|
|
|
837 GetApplicationHome(char *buf, jint bufsize)
|
|
|
838 {
|
|
|
839 #ifdef __linux__
|
|
|
840 char *execname = GetExecname();
|
|
|
841 if (execname) {
|
|
|
842 strncpy(buf, execname, bufsize-1);
|
|
|
843 buf[bufsize-1] = '\0';
|
|
|
844 } else {
|
|
|
845 return JNI_FALSE;
|
|
|
846 }
|
|
|
847 #else
|
|
|
848 Dl_info dlinfo;
|
|
|
849
|
|
|
850 dladdr((void *)GetApplicationHome, &dlinfo);
|
|
|
851 if (realpath(dlinfo.dli_fname, buf) == NULL) {
|
|
|
852 fprintf(stderr, "Error: realpath(`%s') failed.\n", dlinfo.dli_fname);
|
|
|
853 return JNI_FALSE;
|
|
|
854 }
|
|
|
855 #endif
|
|
|
856
|
|
|
857 #ifdef GAMMA
|
|
|
858 {
|
|
|
859 /* gamma launcher uses JAVA_HOME environment variable to find JDK/JRE */
|
|
|
860 char* java_home_var = getenv("JAVA_HOME");
|
|
|
861 if (java_home_var == NULL) {
|
|
|
862 printf("JAVA_HOME must point to a valid JDK/JRE to run gamma\n");
|
|
|
863 return JNI_FALSE;
|
|
|
864 }
|
|
|
865 snprintf(buf, bufsize, "%s", java_home_var);
|
|
|
866 }
|
|
|
867 #else
|
|
|
868 if (strrchr(buf, '/') == 0) {
|
|
|
869 buf[0] = '\0';
|
|
|
870 return JNI_FALSE;
|
|
|
871 }
|
|
|
872 *(strrchr(buf, '/')) = '\0'; /* executable file */
|
|
|
873 if (strlen(buf) < 4 || strrchr(buf, '/') == 0) {
|
|
|
874 buf[0] = '\0';
|
|
|
875 return JNI_FALSE;
|
|
|
876 }
|
|
|
877 if (strcmp("/bin", buf + strlen(buf) - 4) != 0)
|
|
|
878 *(strrchr(buf, '/')) = '\0'; /* sparcv9 or amd64 */
|
|
|
879 if (strlen(buf) < 4 || strcmp("/bin", buf + strlen(buf) - 4) != 0) {
|
|
|
880 buf[0] = '\0';
|
|
|
881 return JNI_FALSE;
|
|
|
882 }
|
|
|
883 *(strrchr(buf, '/')) = '\0'; /* bin */
|
|
|
884 #endif /* GAMMA */
|
|
|
885
|
|
|
886 return JNI_TRUE;
|
|
|
887 }
|
|
|
888
|
|
|
889
|
|
|
890 /*
|
|
|
891 * Return true if the named program exists
|
|
|
892 */
|
|
|
893 static int
|
|
|
894 ProgramExists(char *name)
|
|
|
895 {
|
|
|
896 struct stat sb;
|
|
|
897 if (stat(name, &sb) != 0) return 0;
|
|
|
898 if (S_ISDIR(sb.st_mode)) return 0;
|
|
|
899 return (sb.st_mode & S_IEXEC) != 0;
|
|
|
900 }
|
|
|
901
|
|
|
902
|
|
|
903 /*
|
|
|
904 * Find a command in a directory, returning the path.
|
|
|
905 */
|
|
|
906 static char *
|
|
|
907 Resolve(char *indir, char *cmd)
|
|
|
908 {
|
|
|
909 char name[PATH_MAX + 2], *real;
|
|
|
910
|
|
|
911 if ((strlen(indir) + strlen(cmd) + 1) > PATH_MAX) return 0;
|
|
|
912 sprintf(name, "%s%c%s", indir, FILE_SEPARATOR, cmd);
|
|
|
913 if (!ProgramExists(name)) return 0;
|
|
|
914 real = MemAlloc(PATH_MAX + 2);
|
|
|
915 if (!realpath(name, real))
|
|
|
916 strcpy(real, name);
|
|
|
917 return real;
|
|
|
918 }
|
|
|
919
|
|
|
920
|
|
|
921 /*
|
|
|
922 * Find a path for the executable
|
|
|
923 */
|
|
|
924 static char *
|
|
|
925 FindExecName(char *program)
|
|
|
926 {
|
|
|
927 char cwdbuf[PATH_MAX+2];
|
|
|
928 char *path;
|
|
|
929 char *tmp_path;
|
|
|
930 char *f;
|
|
|
931 char *result = NULL;
|
|
|
932
|
|
|
933 /* absolute path? */
|
|
|
934 if (*program == FILE_SEPARATOR ||
|
|
|
935 (FILE_SEPARATOR=='\\' && strrchr(program, ':')))
|
|
|
936 return Resolve("", program+1);
|
|
|
937
|
|
|
938 /* relative path? */
|
|
|
939 if (strrchr(program, FILE_SEPARATOR) != 0) {
|
|
|
940 char buf[PATH_MAX+2];
|
|
|
941 return Resolve(getcwd(cwdbuf, sizeof(cwdbuf)), program);
|
|
|
942 }
|
|
|
943
|
|
|
944 /* from search path? */
|
|
|
945 path = getenv("PATH");
|
|
|
946 if (!path || !*path) path = ".";
|
|
|
947 tmp_path = MemAlloc(strlen(path) + 2);
|
|
|
948 strcpy(tmp_path, path);
|
|
|
949
|
|
|
950 for (f=tmp_path; *f && result==0; ) {
|
|
|
951 char *s = f;
|
|
|
952 while (*f && (*f != PATH_SEPARATOR)) ++f;
|
|
|
953 if (*f) *f++ = 0;
|
|
|
954 if (*s == FILE_SEPARATOR)
|
|
|
955 result = Resolve(s, program);
|
|
|
956 else {
|
|
|
957 /* relative path element */
|
|
|
958 char dir[2*PATH_MAX];
|
|
|
959 sprintf(dir, "%s%c%s", getcwd(cwdbuf, sizeof(cwdbuf)),
|
|
|
960 FILE_SEPARATOR, s);
|
|
|
961 result = Resolve(dir, program);
|
|
|
962 }
|
|
|
963 if (result != 0) break;
|
|
|
964 }
|
|
|
965
|
|
|
966 free(tmp_path);
|
|
|
967 return result;
|
|
|
968 }
|
|
|
969
|
|
|
970
|
|
|
971 /* Store the name of the executable once computed */
|
|
|
972 static char *execname = NULL;
|
|
|
973
|
|
|
974 /*
|
|
|
975 * Compute the name of the executable
|
|
|
976 *
|
|
|
977 * In order to re-exec securely we need the absolute path of the
|
|
|
978 * executable. On Solaris getexecname(3c) may not return an absolute
|
|
|
979 * path so we use dladdr to get the filename of the executable and
|
|
|
980 * then use realpath to derive an absolute path. From Solaris 9
|
|
|
981 * onwards the filename returned in DL_info structure from dladdr is
|
|
|
982 * an absolute pathname so technically realpath isn't required.
|
|
|
983 * On Linux we read the executable name from /proc/self/exe.
|
|
|
984 * As a fallback, and for platforms other than Solaris and Linux,
|
|
|
985 * we use FindExecName to compute the executable name.
|
|
|
986 */
|
|
|
987 static char *
|
|
|
988 SetExecname(char **argv)
|
|
|
989 {
|
|
|
990 char* exec_path = NULL;
|
|
|
991
|
|
|
992 if (execname != NULL) /* Already determined */
|
|
|
993 return (execname);
|
|
|
994
|
|
|
995 #if defined(__sun)
|
|
|
996 {
|
|
|
997 Dl_info dlinfo;
|
|
|
998 if (dladdr((void*)&SetExecname, &dlinfo)) {
|
|
|
999 char *resolved = (char*)MemAlloc(PATH_MAX+1);
|
|
|
1000 if (resolved != NULL) {
|
|
|
1001 exec_path = realpath(dlinfo.dli_fname, resolved);
|
|
|
1002 if (exec_path == NULL) {
|
|
|
1003 free(resolved);
|
|
|
1004 }
|
|
|
1005 }
|
|
|
1006 }
|
|
|
1007 }
|
|
|
1008 #elif defined(__linux__)
|
|
|
1009 {
|
|
|
1010 const char* self = "/proc/self/exe";
|
|
|
1011 char buf[PATH_MAX+1];
|
|
|
1012 int len = readlink(self, buf, PATH_MAX);
|
|
|
1013 if (len >= 0) {
|
|
|
1014 buf[len] = '\0'; /* readlink doesn't nul terminate */
|
|
|
1015 exec_path = strdup(buf);
|
|
|
1016 }
|
|
|
1017 }
|
|
|
1018 #else /* !__sun && !__linux */
|
|
|
1019 {
|
|
|
1020 /* Not implemented */
|
|
|
1021 }
|
|
|
1022 #endif
|
|
|
1023
|
|
|
1024 if (exec_path == NULL) {
|
|
|
1025 exec_path = FindExecName(argv[0]);
|
|
|
1026 }
|
|
|
1027 execname = exec_path;
|
|
|
1028 return exec_path;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 /*
|
|
|
1032 * Return the name of the executable. Used in java_md.c to find the JRE area.
|
|
|
1033 */
|
|
|
1034 static char *
|
|
|
1035 GetExecname() {
|
|
|
1036 return execname;
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 void ReportErrorMessage(char * message, jboolean always) {
|
|
|
1040 if (always) {
|
|
|
1041 fprintf(stderr, "%s\n", message);
|
|
|
1042 }
|
|
|
1043 }
|
|
|
1044
|
|
|
1045 void ReportErrorMessage2(char * format, char * string, jboolean always) {
|
|
|
1046 if (always) {
|
|
|
1047 fprintf(stderr, format, string);
|
|
|
1048 fprintf(stderr, "\n");
|
|
|
1049 }
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 void ReportExceptionDescription(JNIEnv * env) {
|
|
|
1053 (*env)->ExceptionDescribe(env);
|
|
|
1054 }
|
|
|
1055
|
|
|
1056 /*
|
|
|
1057 * Return JNI_TRUE for an option string that has no effect but should
|
|
|
1058 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On
|
|
|
1059 * Solaris SPARC, this screening needs to be done if:
|
|
|
1060 * 1) LD_LIBRARY_PATH does _not_ need to be reset and
|
|
|
1061 * 2) -d32 or -d64 is passed to a binary with a matching data model
|
|
|
1062 * (the exec in SetLibraryPath removes -d<n> options and points the
|
|
|
1063 * exec to the proper binary). When this exec is not done, these options
|
|
|
1064 * would end up getting passed onto the vm.
|
|
|
1065 */
|
|
|
1066 jboolean RemovableMachineDependentOption(char * option) {
|
|
|
1067 /*
|
|
|
1068 * Unconditionally remove both -d32 and -d64 options since only
|
|
|
1069 * the last such options has an effect; e.g.
|
|
|
1070 * java -d32 -d64 -d32 -version
|
|
|
1071 * is equivalent to
|
|
|
1072 * java -d32 -version
|
|
|
1073 */
|
|
|
1074
|
|
|
1075 if( (strcmp(option, "-d32") == 0 ) ||
|
|
|
1076 (strcmp(option, "-d64") == 0 ))
|
|
|
1077 return JNI_TRUE;
|
|
|
1078 else
|
|
|
1079 return JNI_FALSE;
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 void PrintMachineDependentOptions() {
|
|
|
1083 fprintf(stdout,
|
|
|
1084 " -d32 use a 32-bit data model if available\n"
|
|
|
1085 "\n"
|
|
|
1086 " -d64 use a 64-bit data model if available\n");
|
|
|
1087 return;
|
|
|
1088 }
|
|
|
1089
|
|
|
1090 #ifndef GAMMA /* gamma launcher does not have ergonomics */
|
|
|
1091
|
|
|
1092 /*
|
|
|
1093 * The following methods (down to ServerClassMachine()) answer
|
|
|
1094 * the question about whether a machine is a "server-class"
|
|
|
1095 * machine. A server-class machine is loosely defined as one
|
|
|
1096 * with 2 or more processors and 2 gigabytes or more physical
|
|
|
1097 * memory. The definition of a processor is a physical package,
|
|
|
1098 * not a hyperthreaded chip masquerading as a multi-processor.
|
|
|
1099 * The definition of memory is also somewhat fuzzy, since x86
|
|
|
1100 * machines seem not to report all the memory in their DIMMs, we
|
|
|
1101 * think because of memory mapping of graphics cards, etc.
|
|
|
1102 *
|
|
|
1103 * This code is somewhat more confused with #ifdef's than we'd
|
|
|
1104 * like because this file is used by both Solaris and Linux
|
|
|
1105 * platforms, and so needs to be parameterized for SPARC and
|
|
|
1106 * i586 hardware. The other Linux platforms (amd64 and ia64)
|
|
|
1107 * don't even ask this question, because they only come with
|
|
|
1108 * server JVMs. */
|
|
|
1109
|
|
|
1110 # define KB (1024UL)
|
|
|
1111 # define MB (1024UL * KB)
|
|
|
1112 # define GB (1024UL * MB)
|
|
|
1113
|
|
|
1114 /* Compute physical memory by asking the OS */
|
|
|
1115 uint64_t
|
|
|
1116 physical_memory(void) {
|
|
|
1117 const uint64_t pages = (uint64_t) sysconf(_SC_PHYS_PAGES);
|
|
|
1118 const uint64_t page_size = (uint64_t) sysconf(_SC_PAGESIZE);
|
|
|
1119 const uint64_t result = pages * page_size;
|
|
|
1120 # define UINT64_FORMAT "%" PRIu64
|
|
|
1121
|
|
|
1122 if (_launcher_debug) {
|
|
|
1123 printf("pages: " UINT64_FORMAT
|
|
|
1124 " page_size: " UINT64_FORMAT
|
|
|
1125 " physical memory: " UINT64_FORMAT " (%.3fGB)\n",
|
|
|
1126 pages, page_size, result, result / (double) GB);
|
|
|
1127 }
|
|
|
1128 return result;
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 #if defined(__sun) && defined(__sparc)
|
|
|
1132
|
|
|
1133 /* Methods for solaris-sparc: these are easy. */
|
|
|
1134
|
|
|
1135 /* Ask the OS how many processors there are. */
|
|
|
1136 unsigned long
|
|
|
1137 physical_processors(void) {
|
|
|
1138 const unsigned long sys_processors = sysconf(_SC_NPROCESSORS_CONF);
|
|
|
1139
|
|
|
1140 if (_launcher_debug) {
|
|
|
1141 printf("sysconf(_SC_NPROCESSORS_CONF): %lu\n", sys_processors);
|
|
|
1142 }
|
|
|
1143 return sys_processors;
|
|
|
1144 }
|
|
|
1145
|
|
|
1146 /* The solaris-sparc version of the "server-class" predicate. */
|
|
|
1147 jboolean
|
|
|
1148 solaris_sparc_ServerClassMachine(void) {
|
|
|
1149 jboolean result = JNI_FALSE;
|
|
|
1150 /* How big is a server class machine? */
|
|
|
1151 const unsigned long server_processors = 2UL;
|
|
|
1152 const uint64_t server_memory = 2UL * GB;
|
|
|
1153 const uint64_t actual_memory = physical_memory();
|
|
|
1154
|
|
|
1155 /* Is this a server class machine? */
|
|
|
1156 if (actual_memory >= server_memory) {
|
|
|
1157 const unsigned long actual_processors = physical_processors();
|
|
|
1158 if (actual_processors >= server_processors) {
|
|
|
1159 result = JNI_TRUE;
|
|
|
1160 }
|
|
|
1161 }
|
|
|
1162 if (_launcher_debug) {
|
|
|
1163 printf("solaris_" ARCH "_ServerClassMachine: %s\n",
|
|
|
1164 (result == JNI_TRUE ? "JNI_TRUE" : "JNI_FALSE"));
|
|
|
1165 }
|
|
|
1166 return result;
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 #endif /* __sun && __sparc */
|
|
|
1170
|
|
|
1171 #if defined(__sun) && defined(i586)
|
|
|
1172
|
|
|
1173 /*
|
|
|
1174 * A utility method for asking the CPU about itself.
|
|
|
1175 * There's a corresponding version of linux-i586
|
|
|
1176 * because the compilers are different.
|
|
|
1177 */
|
|
|
1178 void
|
|
|
1179 get_cpuid(uint32_t arg,
|
|
|
1180 uint32_t* eaxp,
|
|
|
1181 uint32_t* ebxp,
|
|
|
1182 uint32_t* ecxp,
|
|
|
1183 uint32_t* edxp) {
|
|
|
1184 #ifdef _LP64
|
|
|
1185 asm(
|
|
|
1186 /* rbx is a callee-saved register */
|
|
|
1187 " movq %rbx, %r11 \n"
|
|
|
1188 /* rdx and rcx are 3rd and 4th argument registers */
|
|
|
1189 " movq %rdx, %r10 \n"
|
|
|
1190 " movq %rcx, %r9 \n"
|
|
|
1191 " movl %edi, %eax \n"
|
|
|
1192 " cpuid \n"
|
|
|
1193 " movl %eax, (%rsi)\n"
|
|
|
1194 " movl %ebx, (%r10)\n"
|
|
|
1195 " movl %ecx, (%r9) \n"
|
|
|
1196 " movl %edx, (%r8) \n"
|
|
|
1197 /* Restore rbx */
|
|
|
1198 " movq %r11, %rbx");
|
|
|
1199 #else
|
|
|
1200 /* EBX is a callee-saved register */
|
|
|
1201 asm(" pushl %ebx");
|
|
|
1202 /* Need ESI for storing through arguments */
|
|
|
1203 asm(" pushl %esi");
|
|
|
1204 asm(" movl 8(%ebp), %eax \n"
|
|
|
1205 " cpuid \n"
|
|
|
1206 " movl 12(%ebp), %esi \n"
|
|
|
1207 " movl %eax, (%esi) \n"
|
|
|
1208 " movl 16(%ebp), %esi \n"
|
|
|
1209 " movl %ebx, (%esi) \n"
|
|
|
1210 " movl 20(%ebp), %esi \n"
|
|
|
1211 " movl %ecx, (%esi) \n"
|
|
|
1212 " movl 24(%ebp), %esi \n"
|
|
|
1213 " movl %edx, (%esi) ");
|
|
|
1214 /* Restore ESI and EBX */
|
|
|
1215 asm(" popl %esi");
|
|
|
1216 /* Restore EBX */
|
|
|
1217 asm(" popl %ebx");
|
|
|
1218 #endif
|
|
|
1219 }
|
|
|
1220
|
|
|
1221 #endif /* __sun && i586 */
|
|
|
1222
|
|
|
1223 #if defined(__linux__) && defined(i586)
|
|
|
1224
|
|
|
1225 /*
|
|
|
1226 * A utility method for asking the CPU about itself.
|
|
|
1227 * There's a corresponding version of solaris-i586
|
|
|
1228 * because the compilers are different.
|
|
|
1229 */
|
|
|
1230 void
|
|
|
1231 get_cpuid(uint32_t arg,
|
|
|
1232 uint32_t* eaxp,
|
|
|
1233 uint32_t* ebxp,
|
|
|
1234 uint32_t* ecxp,
|
|
|
1235 uint32_t* edxp) {
|
|
|
1236 #ifdef _LP64
|
|
|
1237 __asm__ volatile (/* Instructions */
|
|
|
1238 " movl %4, %%eax \n"
|
|
|
1239 " cpuid \n"
|
|
|
1240 " movl %%eax, (%0)\n"
|
|
|
1241 " movl %%ebx, (%1)\n"
|
|
|
1242 " movl %%ecx, (%2)\n"
|
|
|
1243 " movl %%edx, (%3)\n"
|
|
|
1244 : /* Outputs */
|
|
|
1245 : /* Inputs */
|
|
|
1246 "r" (eaxp),
|
|
|
1247 "r" (ebxp),
|
|
|
1248 "r" (ecxp),
|
|
|
1249 "r" (edxp),
|
|
|
1250 "r" (arg)
|
|
|
1251 : /* Clobbers */
|
|
|
1252 "%rax", "%rbx", "%rcx", "%rdx", "memory"
|
|
|
1253 );
|
|
|
1254 #else
|
|
|
1255 uint32_t value_of_eax = 0;
|
|
|
1256 uint32_t value_of_ebx = 0;
|
|
|
1257 uint32_t value_of_ecx = 0;
|
|
|
1258 uint32_t value_of_edx = 0;
|
|
|
1259 __asm__ volatile (/* Instructions */
|
|
|
1260 /* ebx is callee-save, so push it */
|
|
|
1261 /* even though it's in the clobbers section */
|
|
|
1262 " pushl %%ebx \n"
|
|
|
1263 " movl %4, %%eax \n"
|
|
|
1264 " cpuid \n"
|
|
|
1265 " movl %%eax, %0 \n"
|
|
|
1266 " movl %%ebx, %1 \n"
|
|
|
1267 " movl %%ecx, %2 \n"
|
|
|
1268 " movl %%edx, %3 \n"
|
|
|
1269 /* restore ebx */
|
|
|
1270 " popl %%ebx \n"
|
|
|
1271
|
|
|
1272 : /* Outputs */
|
|
|
1273 "=m" (value_of_eax),
|
|
|
1274 "=m" (value_of_ebx),
|
|
|
1275 "=m" (value_of_ecx),
|
|
|
1276 "=m" (value_of_edx)
|
|
|
1277 : /* Inputs */
|
|
|
1278 "m" (arg)
|
|
|
1279 : /* Clobbers */
|
|
|
1280 "%eax", "%ebx", "%ecx", "%edx"
|
|
|
1281 );
|
|
|
1282 *eaxp = value_of_eax;
|
|
|
1283 *ebxp = value_of_ebx;
|
|
|
1284 *ecxp = value_of_ecx;
|
|
|
1285 *edxp = value_of_edx;
|
|
|
1286 #endif
|
|
|
1287 }
|
|
|
1288
|
|
|
1289 #endif /* __linux__ && i586 */
|
|
|
1290
|
|
|
1291 #ifdef i586
|
|
|
1292 /*
|
|
|
1293 * Routines shared by solaris-i586 and linux-i586.
|
|
|
1294 */
|
|
|
1295
|
|
|
1296 enum HyperThreadingSupport_enum {
|
|
|
1297 hts_supported = 1,
|
|
|
1298 hts_too_soon_to_tell = 0,
|
|
|
1299 hts_not_supported = -1,
|
|
|
1300 hts_not_pentium4 = -2,
|
|
|
1301 hts_not_intel = -3
|
|
|
1302 };
|
|
|
1303 typedef enum HyperThreadingSupport_enum HyperThreadingSupport;
|
|
|
1304
|
|
|
1305 /* Determine if hyperthreading is supported */
|
|
|
1306 HyperThreadingSupport
|
|
|
1307 hyperthreading_support(void) {
|
|
|
1308 HyperThreadingSupport result = hts_too_soon_to_tell;
|
|
|
1309 /* Bits 11 through 8 is family processor id */
|
|
|
1310 # define FAMILY_ID_SHIFT 8
|
|
|
1311 # define FAMILY_ID_MASK 0xf
|
|
|
1312 /* Bits 23 through 20 is extended family processor id */
|
|
|
1313 # define EXT_FAMILY_ID_SHIFT 20
|
|
|
1314 # define EXT_FAMILY_ID_MASK 0xf
|
|
|
1315 /* Pentium 4 family processor id */
|
|
|
1316 # define PENTIUM4_FAMILY_ID 0xf
|
|
|
1317 /* Bit 28 indicates Hyper-Threading Technology support */
|
|
|
1318 # define HT_BIT_SHIFT 28
|
|
|
1319 # define HT_BIT_MASK 1
|
|
|
1320 uint32_t vendor_id[3] = { 0U, 0U, 0U };
|
|
|
1321 uint32_t value_of_eax = 0U;
|
|
|
1322 uint32_t value_of_edx = 0U;
|
|
|
1323 uint32_t dummy = 0U;
|
|
|
1324
|
|
|
1325 /* Yes, this is supposed to be [0], [2], [1] */
|
|
|
1326 get_cpuid(0, &dummy, &vendor_id[0], &vendor_id[2], &vendor_id[1]);
|
|
|
1327 if (_launcher_debug) {
|
|
|
1328 printf("vendor: %c %c %c %c %c %c %c %c %c %c %c %c \n",
|
|
|
1329 ((vendor_id[0] >> 0) & 0xff),
|
|
|
1330 ((vendor_id[0] >> 8) & 0xff),
|
|
|
1331 ((vendor_id[0] >> 16) & 0xff),
|
|
|
1332 ((vendor_id[0] >> 24) & 0xff),
|
|
|
1333 ((vendor_id[1] >> 0) & 0xff),
|
|
|
1334 ((vendor_id[1] >> 8) & 0xff),
|
|
|
1335 ((vendor_id[1] >> 16) & 0xff),
|
|
|
1336 ((vendor_id[1] >> 24) & 0xff),
|
|
|
1337 ((vendor_id[2] >> 0) & 0xff),
|
|
|
1338 ((vendor_id[2] >> 8) & 0xff),
|
|
|
1339 ((vendor_id[2] >> 16) & 0xff),
|
|
|
1340 ((vendor_id[2] >> 24) & 0xff));
|
|
|
1341 }
|
|
|
1342 get_cpuid(1, &value_of_eax, &dummy, &dummy, &value_of_edx);
|
|
|
1343 if (_launcher_debug) {
|
|
|
1344 printf("value_of_eax: 0x%x value_of_edx: 0x%x\n",
|
|
|
1345 value_of_eax, value_of_edx);
|
|
|
1346 }
|
|
|
1347 if ((((value_of_eax >> FAMILY_ID_SHIFT) & FAMILY_ID_MASK) == PENTIUM4_FAMILY_ID) ||
|
|
|
1348 (((value_of_eax >> EXT_FAMILY_ID_SHIFT) & EXT_FAMILY_ID_MASK) != 0)) {
|
|
|
1349 if ((((vendor_id[0] >> 0) & 0xff) == 'G') &&
|
|
|
1350 (((vendor_id[0] >> 8) & 0xff) == 'e') &&
|
|
|
1351 (((vendor_id[0] >> 16) & 0xff) == 'n') &&
|
|
|
1352 (((vendor_id[0] >> 24) & 0xff) == 'u') &&
|
|
|
1353 (((vendor_id[1] >> 0) & 0xff) == 'i') &&
|
|
|
1354 (((vendor_id[1] >> 8) & 0xff) == 'n') &&
|
|
|
1355 (((vendor_id[1] >> 16) & 0xff) == 'e') &&
|
|
|
1356 (((vendor_id[1] >> 24) & 0xff) == 'I') &&
|
|
|
1357 (((vendor_id[2] >> 0) & 0xff) == 'n') &&
|
|
|
1358 (((vendor_id[2] >> 8) & 0xff) == 't') &&
|
|
|
1359 (((vendor_id[2] >> 16) & 0xff) == 'e') &&
|
|
|
1360 (((vendor_id[2] >> 24) & 0xff) == 'l')) {
|
|
|
1361 if (((value_of_edx >> HT_BIT_SHIFT) & HT_BIT_MASK) == HT_BIT_MASK) {
|
|
|
1362 if (_launcher_debug) {
|
|
|
1363 printf("Hyperthreading supported\n");
|
|
|
1364 }
|
|
|
1365 result = hts_supported;
|
|
|
1366 } else {
|
|
|
1367 if (_launcher_debug) {
|
|
|
1368 printf("Hyperthreading not supported\n");
|
|
|
1369 }
|
|
|
1370 result = hts_not_supported;
|
|
|
1371 }
|
|
|
1372 } else {
|
|
|
1373 if (_launcher_debug) {
|
|
|
1374 printf("Not GenuineIntel\n");
|
|
|
1375 }
|
|
|
1376 result = hts_not_intel;
|
|
|
1377 }
|
|
|
1378 } else {
|
|
|
1379 if (_launcher_debug) {
|
|
|
1380 printf("not Pentium 4 or extended\n");
|
|
|
1381 }
|
|
|
1382 result = hts_not_pentium4;
|
|
|
1383 }
|
|
|
1384 return result;
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 /* Determine how many logical processors there are per CPU */
|
|
|
1388 unsigned int
|
|
|
1389 logical_processors_per_package(void) {
|
|
|
1390 /*
|
|
|
1391 * After CPUID with EAX==1, register EBX bits 23 through 16
|
|
|
1392 * indicate the number of logical processors per package
|
|
|
1393 */
|
|
|
1394 # define NUM_LOGICAL_SHIFT 16
|
|
|
1395 # define NUM_LOGICAL_MASK 0xff
|
|
|
1396 unsigned int result = 1U;
|
|
|
1397 const HyperThreadingSupport hyperthreading = hyperthreading_support();
|
|
|
1398
|
|
|
1399 if (hyperthreading == hts_supported) {
|
|
|
1400 uint32_t value_of_ebx = 0U;
|
|
|
1401 uint32_t dummy = 0U;
|
|
|
1402
|
|
|
1403 get_cpuid(1, &dummy, &value_of_ebx, &dummy, &dummy);
|
|
|
1404 result = (value_of_ebx >> NUM_LOGICAL_SHIFT) & NUM_LOGICAL_MASK;
|
|
|
1405 if (_launcher_debug) {
|
|
|
1406 printf("logical processors per package: %u\n", result);
|
|
|
1407 }
|
|
|
1408 }
|
|
|
1409 return result;
|
|
|
1410 }
|
|
|
1411
|
|
|
1412 /* Compute the number of physical processors, not logical processors */
|
|
|
1413 unsigned long
|
|
|
1414 physical_processors(void) {
|
|
|
1415 const long sys_processors = sysconf(_SC_NPROCESSORS_CONF);
|
|
|
1416 unsigned long result = sys_processors;
|
|
|
1417
|
|
|
1418 if (_launcher_debug) {
|
|
|
1419 printf("sysconf(_SC_NPROCESSORS_CONF): %lu\n", sys_processors);
|
|
|
1420 }
|
|
|
1421 if (sys_processors > 1) {
|
|
|
1422 unsigned int logical_processors = logical_processors_per_package();
|
|
|
1423 if (logical_processors > 1) {
|
|
|
1424 result = (unsigned long) sys_processors / logical_processors;
|
|
|
1425 }
|
|
|
1426 }
|
|
|
1427 if (_launcher_debug) {
|
|
|
1428 printf("physical processors: %lu\n", result);
|
|
|
1429 }
|
|
|
1430 return result;
|
|
|
1431 }
|
|
|
1432
|
|
|
1433 #endif /* i586 */
|
|
|
1434
|
|
|
1435 #if defined(__sun) && defined(i586)
|
|
|
1436
|
|
|
1437 /* The definition of a server-class machine for solaris-i586/amd64 */
|
|
|
1438 jboolean
|
|
|
1439 solaris_i586_ServerClassMachine(void) {
|
|
|
1440 jboolean result = JNI_FALSE;
|
|
|
1441 /* How big is a server class machine? */
|
|
|
1442 const unsigned long server_processors = 2UL;
|
|
|
1443 const uint64_t server_memory = 2UL * GB;
|
|
|
1444 /*
|
|
|
1445 * We seem not to get our full complement of memory.
|
|
|
1446 * We allow some part (1/8?) of the memory to be "missing",
|
|
|
1447 * based on the sizes of DIMMs, and maybe graphics cards.
|
|
|
1448 */
|
|
|
1449 const uint64_t missing_memory = 256UL * MB;
|
|
|
1450 const uint64_t actual_memory = physical_memory();
|
|
|
1451
|
|
|
1452 /* Is this a server class machine? */
|
|
|
1453 if (actual_memory >= (server_memory - missing_memory)) {
|
|
|
1454 const unsigned long actual_processors = physical_processors();
|
|
|
1455 if (actual_processors >= server_processors) {
|
|
|
1456 result = JNI_TRUE;
|
|
|
1457 }
|
|
|
1458 }
|
|
|
1459 if (_launcher_debug) {
|
|
|
1460 printf("solaris_" ARCH "_ServerClassMachine: %s\n",
|
|
|
1461 (result == JNI_TRUE ? "true" : "false"));
|
|
|
1462 }
|
|
|
1463 return result;
|
|
|
1464 }
|
|
|
1465
|
|
|
1466 #endif /* __sun && i586 */
|
|
|
1467
|
|
|
1468 #if defined(__linux__) && defined(i586)
|
|
|
1469
|
|
|
1470 /* The definition of a server-class machine for linux-i586 */
|
|
|
1471 jboolean
|
|
|
1472 linux_i586_ServerClassMachine(void) {
|
|
|
1473 jboolean result = JNI_FALSE;
|
|
|
1474 /* How big is a server class machine? */
|
|
|
1475 const unsigned long server_processors = 2UL;
|
|
|
1476 const uint64_t server_memory = 2UL * GB;
|
|
|
1477 /*
|
|
|
1478 * We seem not to get our full complement of memory.
|
|
|
1479 * We allow some part (1/8?) of the memory to be "missing",
|
|
|
1480 * based on the sizes of DIMMs, and maybe graphics cards.
|
|
|
1481 */
|
|
|
1482 const uint64_t missing_memory = 256UL * MB;
|
|
|
1483 const uint64_t actual_memory = physical_memory();
|
|
|
1484
|
|
|
1485 /* Is this a server class machine? */
|
|
|
1486 if (actual_memory >= (server_memory - missing_memory)) {
|
|
|
1487 const unsigned long actual_processors = physical_processors();
|
|
|
1488 if (actual_processors >= server_processors) {
|
|
|
1489 result = JNI_TRUE;
|
|
|
1490 }
|
|
|
1491 }
|
|
|
1492 if (_launcher_debug) {
|
|
|
1493 printf("linux_" ARCH "_ServerClassMachine: %s\n",
|
|
|
1494 (result == JNI_TRUE ? "true" : "false"));
|
|
|
1495 }
|
|
|
1496 return result;
|
|
|
1497 }
|
|
|
1498
|
|
|
1499 #endif /* __linux__ && i586 */
|
|
|
1500
|
|
|
1501 /* Dispatch to the platform-specific definition of "server-class" */
|
|
|
1502 jboolean
|
|
|
1503 ServerClassMachine(void) {
|
|
|
1504 jboolean result = JNI_FALSE;
|
|
|
1505 #if defined(__sun) && defined(__sparc)
|
|
|
1506 result = solaris_sparc_ServerClassMachine();
|
|
|
1507 #elif defined(__sun) && defined(i586)
|
|
|
1508 result = solaris_i586_ServerClassMachine();
|
|
|
1509 #elif defined(__linux__) && defined(i586)
|
|
|
1510 result = linux_i586_ServerClassMachine();
|
|
|
1511 #else
|
|
|
1512 if (_launcher_debug) {
|
|
|
1513 printf("ServerClassMachine: returns default value of %s\n",
|
|
|
1514 (result == JNI_TRUE ? "true" : "false"));
|
|
|
1515 }
|
|
|
1516 #endif
|
|
|
1517 return result;
|
|
|
1518 }
|
|
|
1519
|
|
|
1520 #endif /* ifndef GAMMA */
|
|
|
1521
|
|
|
1522 #ifndef GAMMA /* gamma launcher does not choose JDK/JRE/JVM */
|
|
|
1523
|
|
|
1524 /*
|
|
|
1525 * Since using the file system as a registry is a bit risky, perform
|
|
|
1526 * additional sanity checks on the identified directory to validate
|
|
|
1527 * it as a valid jre/sdk.
|
|
|
1528 *
|
|
|
1529 * Return 0 if the tests fail; otherwise return non-zero (true).
|
|
|
1530 *
|
|
|
1531 * Note that checking for anything more than the existence of an
|
|
|
1532 * executable object at bin/java relative to the path being checked
|
|
|
1533 * will break the regression tests.
|
|
|
1534 */
|
|
|
1535 static int
|
|
|
1536 CheckSanity(char *path, char *dir)
|
|
|
1537 {
|
|
|
1538 char buffer[PATH_MAX];
|
|
|
1539
|
|
|
1540 if (strlen(path) + strlen(dir) + 11 > PATH_MAX)
|
|
|
1541 return (0); /* Silently reject "impossibly" long paths */
|
|
|
1542
|
|
|
1543 (void)strcat(strcat(strcat(strcpy(buffer, path), "/"), dir), "/bin/java");
|
|
|
1544 return ((access(buffer, X_OK) == 0) ? 1 : 0);
|
|
|
1545 }
|
|
|
1546
|
|
|
1547 /*
|
|
|
1548 * Determine if there is an acceptable JRE in the directory dirname.
|
|
|
1549 * Upon locating the "best" one, return a fully qualified path to
|
|
|
1550 * it. "Best" is defined as the most advanced JRE meeting the
|
|
|
1551 * constraints contained in the manifest_info. If no JRE in this
|
|
|
1552 * directory meets the constraints, return NULL.
|
|
|
1553 *
|
|
|
1554 * Note that we don't check for errors in reading the directory
|
|
|
1555 * (which would be done by checking errno). This is because it
|
|
|
1556 * doesn't matter if we get an error reading the directory, or
|
|
|
1557 * we just don't find anything interesting in the directory. We
|
|
|
1558 * just return NULL in either case.
|
|
|
1559 *
|
|
|
1560 * The historical names of j2sdk and j2re were changed to jdk and
|
|
|
1561 * jre respecively as part of the 1.5 rebranding effort. Since the
|
|
|
1562 * former names are legacy on Linux, they must be recognized for
|
|
|
1563 * all time. Fortunately, this is a minor cost.
|
|
|
1564 */
|
|
|
1565 static char
|
|
|
1566 *ProcessDir(manifest_info *info, char *dirname)
|
|
|
1567 {
|
|
|
1568 DIR *dirp;
|
|
|
1569 struct dirent *dp;
|
|
|
1570 char *best = NULL;
|
|
|
1571 int offset;
|
|
|
1572 int best_offset = 0;
|
|
|
1573 char *ret_str = NULL;
|
|
|
1574 char buffer[PATH_MAX];
|
|
|
1575
|
|
|
1576 if ((dirp = opendir(dirname)) == NULL)
|
|
|
1577 return (NULL);
|
|
|
1578
|
|
|
1579 do {
|
|
|
1580 if ((dp = readdir(dirp)) != NULL) {
|
|
|
1581 offset = 0;
|
|
|
1582 if ((strncmp(dp->d_name, "jre", 3) == 0) ||
|
|
|
1583 (strncmp(dp->d_name, "jdk", 3) == 0))
|
|
|
1584 offset = 3;
|
|
|
1585 else if (strncmp(dp->d_name, "j2re", 4) == 0)
|
|
|
1586 offset = 4;
|
|
|
1587 else if (strncmp(dp->d_name, "j2sdk", 5) == 0)
|
|
|
1588 offset = 5;
|
|
|
1589 if (offset > 0) {
|
|
|
1590 if ((acceptable_release(dp->d_name + offset,
|
|
|
1591 info->jre_version)) && CheckSanity(dirname, dp->d_name))
|
|
|
1592 if ((best == NULL) || (exact_version_id(
|
|
|
1593 dp->d_name + offset, best + best_offset) > 0)) {
|
|
|
1594 if (best != NULL)
|
|
|
1595 free(best);
|
|
|
1596 best = strdup(dp->d_name);
|
|
|
1597 best_offset = offset;
|
|
|
1598 }
|
|
|
1599 }
|
|
|
1600 }
|
|
|
1601 } while (dp != NULL);
|
|
|
1602 (void) closedir(dirp);
|
|
|
1603 if (best == NULL)
|
|
|
1604 return (NULL);
|
|
|
1605 else {
|
|
|
1606 ret_str = MemAlloc(strlen(dirname) + strlen(best) + 2);
|
|
|
1607 ret_str = strcat(strcat(strcpy(ret_str, dirname), "/"), best);
|
|
|
1608 free(best);
|
|
|
1609 return (ret_str);
|
|
|
1610 }
|
|
|
1611 }
|
|
|
1612
|
|
|
1613 /*
|
|
|
1614 * This is the global entry point. It examines the host for the optimal
|
|
|
1615 * JRE to be used by scanning a set of directories. The set of directories
|
|
|
1616 * is platform dependent and can be overridden by the environment
|
|
|
1617 * variable JAVA_VERSION_PATH.
|
|
|
1618 *
|
|
|
1619 * This routine itself simply determines the set of appropriate
|
|
|
1620 * directories before passing control onto ProcessDir().
|
|
|
1621 */
|
|
|
1622 char*
|
|
|
1623 LocateJRE(manifest_info* info)
|
|
|
1624 {
|
|
|
1625 char *path;
|
|
|
1626 char *home;
|
|
|
1627 char *target = NULL;
|
|
|
1628 char *dp;
|
|
|
1629 char *cp;
|
|
|
1630
|
|
|
1631 /*
|
|
|
1632 * Start by getting JAVA_VERSION_PATH
|
|
|
1633 */
|
|
|
1634 if (info->jre_restrict_search)
|
|
|
1635 path = strdup(system_dir);
|
|
|
1636 else if ((path = getenv("JAVA_VERSION_PATH")) != NULL)
|
|
|
1637 path = strdup(path);
|
|
|
1638 else
|
|
|
1639 if ((home = getenv("HOME")) != NULL) {
|
|
|
1640 path = (char *)MemAlloc(strlen(home) + 13);
|
|
|
1641 path = strcat(strcat(strcat(strcpy(path, home),
|
|
|
1642 user_dir), ":"), system_dir);
|
|
|
1643 } else
|
|
|
1644 path = strdup(system_dir);
|
|
|
1645
|
|
|
1646 /*
|
|
|
1647 * Step through each directory on the path. Terminate the scan with
|
|
|
1648 * the first directory with an acceptable JRE.
|
|
|
1649 */
|
|
|
1650 cp = dp = path;
|
|
|
1651 while (dp != NULL) {
|
|
|
1652 cp = strchr(dp, (int)':');
|
|
|
1653 if (cp != NULL)
|
|
|
1654 *cp = (char)NULL;
|
|
|
1655 if ((target = ProcessDir(info, dp)) != NULL)
|
|
|
1656 break;
|
|
|
1657 dp = cp;
|
|
|
1658 if (dp != NULL)
|
|
|
1659 dp++;
|
|
|
1660 }
|
|
|
1661 free(path);
|
|
|
1662 return (target);
|
|
|
1663 }
|
|
|
1664
|
|
|
1665 /*
|
|
|
1666 * Given a path to a jre to execute, this routine checks if this process
|
|
|
1667 * is indeed that jre. If not, it exec's that jre.
|
|
|
1668 *
|
|
|
1669 * We want to actually check the paths rather than just the version string
|
|
|
1670 * built into the executable, so that given version specification (and
|
|
|
1671 * JAVA_VERSION_PATH) will yield the exact same Java environment, regardless
|
|
|
1672 * of the version of the arbitrary launcher we start with.
|
|
|
1673 */
|
|
|
1674 void
|
|
|
1675 ExecJRE(char *jre, char **argv)
|
|
|
1676 {
|
|
|
1677 char wanted[PATH_MAX];
|
|
|
1678 char *execname;
|
|
|
1679 char *progname;
|
|
|
1680
|
|
|
1681 /*
|
|
|
1682 * Resolve the real path to the directory containing the selected JRE.
|
|
|
1683 */
|
|
|
1684 if (realpath(jre, wanted) == NULL) {
|
|
|
1685 fprintf(stderr, "Unable to resolve %s\n", jre);
|
|
|
1686 exit(1);
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 /*
|
|
|
1690 * Resolve the real path to the currently running launcher.
|
|
|
1691 */
|
|
|
1692 execname = SetExecname(argv);
|
|
|
1693 if (execname == NULL) {
|
|
|
1694 fprintf(stderr, "Unable to resolve current executable\n");
|
|
|
1695 exit(1);
|
|
|
1696 }
|
|
|
1697
|
|
|
1698 /*
|
|
|
1699 * If the path to the selected JRE directory is a match to the initial
|
|
|
1700 * portion of the path to the currently executing JRE, we have a winner!
|
|
|
1701 * If so, just return.
|
|
|
1702 */
|
|
|
1703 if (strncmp(wanted, execname, strlen(wanted)) == 0)
|
|
|
1704 return; /* I am the droid you were looking for */
|
|
|
1705
|
|
|
1706 /*
|
|
|
1707 * If this isn't the selected version, exec the selected version.
|
|
|
1708 */
|
|
|
1709 #ifdef JAVA_ARGS /* javac, jar and friends. */
|
|
|
1710 progname = "java";
|
|
|
1711 #else /* java, oldjava, javaw and friends */
|
|
|
1712 #ifdef PROGNAME
|
|
|
1713 progname = PROGNAME;
|
|
|
1714 #else
|
|
|
1715 progname = *argv;
|
|
|
1716 if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) {
|
|
|
1717 progname = s + 1;
|
|
|
1718 }
|
|
|
1719 #endif /* PROGNAME */
|
|
|
1720 #endif /* JAVA_ARGS */
|
|
|
1721
|
|
|
1722 /*
|
|
|
1723 * This should never happen (because of the selection code in SelectJRE),
|
|
|
1724 * but check for "impossibly" long path names just because buffer overruns
|
|
|
1725 * can be so deadly.
|
|
|
1726 */
|
|
|
1727 if (strlen(wanted) + strlen(progname) + 6 > PATH_MAX) {
|
|
|
1728 fprintf(stderr, "Path length exceeds maximum length (PATH_MAX)\n");
|
|
|
1729 exit(1);
|
|
|
1730 }
|
|
|
1731
|
|
|
1732 /*
|
|
|
1733 * Construct the path and exec it.
|
|
|
1734 */
|
|
|
1735 (void)strcat(strcat(wanted, "/bin/"), progname);
|
|
|
1736 argv[0] = progname;
|
|
|
1737 if (_launcher_debug) {
|
|
|
1738 int i;
|
|
|
1739 printf("execv(\"%s\"", wanted);
|
|
|
1740 for (i = 0; argv[i] != NULL; i++)
|
|
|
1741 printf(", \"%s\"", argv[i]);
|
|
|
1742 printf(")\n");
|
|
|
1743 }
|
|
|
1744 execv(wanted, argv);
|
|
|
1745 fprintf(stderr, "Exec of %s failed\n", wanted);
|
|
|
1746 exit(1);
|
|
|
1747 }
|
|
|
1748
|
|
|
1749 #endif /* ifndef GAMMA */
|
|
|
1750
|
|
|
1751 /*
|
|
|
1752 * "Borrowed" from Solaris 10 where the unsetenv() function is being added
|
|
|
1753 * to libc thanks to SUSv3 (Standard Unix Specification, version 3). As
|
|
|
1754 * such, in the fullness of time this will appear in libc on all relevant
|
|
|
1755 * Solaris/Linux platforms and maybe even the Windows platform. At that
|
|
|
1756 * time, this stub can be removed.
|
|
|
1757 *
|
|
|
1758 * This implementation removes the environment locking for multithreaded
|
|
|
1759 * applications. (We don't have access to these mutexes within libc and
|
|
|
1760 * the launcher isn't multithreaded.) Note that what remains is platform
|
|
|
1761 * independent, because it only relies on attributes that a POSIX environment
|
|
|
1762 * defines.
|
|
|
1763 *
|
|
|
1764 * Returns 0 on success, -1 on failure.
|
|
|
1765 *
|
|
|
1766 * Also removed was the setting of errno. The only value of errno set
|
|
|
1767 * was EINVAL ("Invalid Argument").
|
|
|
1768 */
|
|
|
1769
|
|
|
1770 /*
|
|
|
1771 * s1(environ) is name=value
|
|
|
1772 * s2(name) is name(not the form of name=value).
|
|
|
1773 * if names match, return value of 1, else return 0
|
|
|
1774 */
|
|
|
1775 static int
|
|
|
1776 match_noeq(const char *s1, const char *s2)
|
|
|
1777 {
|
|
|
1778 while (*s1 == *s2++) {
|
|
|
1779 if (*s1++ == '=')
|
|
|
1780 return (1);
|
|
|
1781 }
|
|
|
1782 if (*s1 == '=' && s2[-1] == '\0')
|
|
|
1783 return (1);
|
|
|
1784 return (0);
|
|
|
1785 }
|
|
|
1786
|
|
|
1787 /*
|
|
|
1788 * added for SUSv3 standard
|
|
|
1789 *
|
|
|
1790 * Delete entry from environ.
|
|
|
1791 * Do not free() memory! Other threads may be using it.
|
|
|
1792 * Keep it around forever.
|
|
|
1793 */
|
|
|
1794 static int
|
|
|
1795 borrowed_unsetenv(const char *name)
|
|
|
1796 {
|
|
|
1797 long idx; /* index into environ */
|
|
|
1798
|
|
|
1799 if (name == NULL || *name == '\0' ||
|
|
|
1800 strchr(name, '=') != NULL) {
|
|
|
1801 return (-1);
|
|
|
1802 }
|
|
|
1803
|
|
|
1804 for (idx = 0; environ[idx] != NULL; idx++) {
|
|
|
1805 if (match_noeq(environ[idx], name))
|
|
|
1806 break;
|
|
|
1807 }
|
|
|
1808 if (environ[idx] == NULL) {
|
|
|
1809 /* name not found but still a success */
|
|
|
1810 return (0);
|
|
|
1811 }
|
|
|
1812 /* squeeze up one entry */
|
|
|
1813 do {
|
|
|
1814 environ[idx] = environ[idx+1];
|
|
|
1815 } while (environ[++idx] != NULL);
|
|
|
1816
|
|
|
1817 return (0);
|
|
|
1818 }
|
|
|
1819 /* --- End of "borrowed" code --- */
|
|
|
1820
|
|
|
1821 /*
|
|
|
1822 * Wrapper for unsetenv() function.
|
|
|
1823 */
|
|
|
1824 int
|
|
|
1825 UnsetEnv(char *name)
|
|
|
1826 {
|
|
|
1827 return(borrowed_unsetenv(name));
|
|
|
1828 }
|
|
388
|
1829
|
|
|
1830 /*
|
|
|
1831 * The implementation for finding classes from the bootstrap
|
|
|
1832 * class loader, refer to java.h
|
|
|
1833 */
|
|
|
1834 static FindClassFromBootLoader_t *findBootClass = NULL;
|
|
|
1835
|
|
|
1836 jclass
|
|
|
1837 FindBootStrapClass(JNIEnv *env, const char* classname)
|
|
|
1838 {
|
|
|
1839 if (findBootClass == NULL) {
|
|
|
1840 findBootClass = (FindClassFromBootLoader_t *)dlsym(RTLD_DEFAULT,
|
|
|
1841 "JVM_FindClassFromBootLoader");
|
|
|
1842 if (findBootClass == NULL) {
|
|
|
1843 fprintf(stderr, "Error: could not load method JVM_FindClassFromBootLoader");
|
|
|
1844 return NULL;
|
|
|
1845 }
|
|
|
1846 }
|
|
|
1847 return findBootClass(env, classname, JNI_FALSE);
|
|
|
1848 }
|
|
|
1849
|
