| /* |
| * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| /* |
| * Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK, |
| * search "GAMMA" for gamma specific changes. |
| * |
| * GAMMA: gamma launcher is much simpler than regular java launcher in that |
| * JVM is either statically linked in or it is installed in the |
| * same directory where the launcher exists, so we don't have to |
| * worry about choosing the right JVM based on command line flag, jar |
| * file and/or ergonomics. Intead of removing unused logic from source |
| * they are commented out with #ifndef GAMMA, hopefully it'll be easier |
| * to maintain this file in sync with regular JDK launcher. |
| */ |
| |
| /* |
| * Shared source for 'java' command line tool. |
| * |
| * If JAVA_ARGS is defined, then acts as a launcher for applications. For |
| * instance, the JDK command line tools such as javac and javadoc (see |
| * makefiles for more details) are built with this program. Any arguments |
| * prefixed with '-J' will be passed directly to the 'java' command. |
| */ |
| |
| #ifdef GAMMA |
| # ifdef JAVA_ARGS |
| # error Do NOT define JAVA_ARGS when building gamma launcher |
| # endif |
| # if !defined(LINK_INTO_AOUT) && !defined(LINK_INTO_LIBJVM) |
| # error Either LINK_INTO_AOUT or LINK_INTO_LIBJVM must be defined |
| # endif |
| #endif |
| |
| /* |
| * One job of the launcher is to remove command line options which the |
| * vm does not understand and will not process. These options include |
| * options which select which style of vm is run (e.g. -client and |
| * -server) as well as options which select the data model to use. |
| * Additionally, for tools which invoke an underlying vm "-J-foo" |
| * options are turned into "-foo" options to the vm. This option |
| * filtering is handled in a number of places in the launcher, some of |
| * it in machine-dependent code. In this file, the function |
| * CheckJVMType removes vm style options and TranslateDashJArgs |
| * removes "-J" prefixes. On unix platforms, the |
| * CreateExecutionEnvironment function from the unix java_md.c file |
| * processes and removes -d<n> options. However, in case |
| * CreateExecutionEnvironment does not need to exec because |
| * LD_LIBRARY_PATH is set acceptably and the data model does not need |
| * to be changed, ParseArguments will screen out the redundant -d<n> |
| * options and prevent them from being passed to the vm; this is done |
| * by using the machine-dependent call |
| * RemovableMachineDependentOption. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <jni.h> |
| #include "java.h" |
| |
| #ifndef GAMMA |
| #include "manifest_info.h" |
| #include "version_comp.h" |
| #endif |
| |
| #ifndef FULL_VERSION |
| #define FULL_VERSION JDK_MAJOR_VERSION "." JDK_MINOR_VERSION |
| #endif |
| |
| /* |
| * The following environment variable is used to influence the behavior |
| * of the jre exec'd through the SelectVersion routine. The command line |
| * options which specify the version are not passed to the exec'd version, |
| * because that jre may be an older version which wouldn't recognize them. |
| * This environment variable is known to this (and later) version and serves |
| * to suppress the version selection code. This is not only for efficiency, |
| * but also for correctness, since any command line options have been |
| * removed which would cause any value found in the manifest to be used. |
| * This would be incorrect because the command line options are defined |
| * to take precedence. |
| * |
| * The value associated with this environment variable is the MainClass |
| * name from within the executable jar file (if any). This is strictly a |
| * performance enhancement to avoid re-reading the jar file manifest. |
| * |
| * A NOTE TO DEVELOPERS: For performance reasons it is important that |
| * the program image remain relatively small until after SelectVersion |
| * CreateExecutionEnvironment have finished their possibly recursive |
| * processing. Watch everything, but resist all temptations to use Java |
| * interfaces. |
| */ |
| #define ENV_ENTRY "_JAVA_VERSION_SET" |
| |
| static jboolean printVersion = JNI_FALSE; /* print and exit */ |
| static jboolean showVersion = JNI_FALSE; /* print but continue */ |
| static char *progname; |
| jboolean _launcher_debug = JNI_FALSE; |
| |
| /* |
| * List of VM options to be specified when the VM is created. |
| */ |
| static JavaVMOption *options; |
| static int numOptions, maxOptions; |
| |
| /* |
| * Prototypes for functions internal to launcher. |
| */ |
| static void AddOption(char *str, void *info); |
| static void SetClassPath(char *s); |
| static void SelectVersion(int argc, char **argv, char **main_class); |
| static jboolean ParseArguments(int *pargc, char ***pargv, char **pjarfile, |
| char **pclassname, int *pret); |
| static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, |
| InvocationFunctions *ifn); |
| static jstring NewPlatformString(JNIEnv *env, char *s); |
| static jobjectArray NewPlatformStringArray(JNIEnv *env, char **strv, int strc); |
| static jclass LoadClass(JNIEnv *env, char *name); |
| static jstring GetMainClassName(JNIEnv *env, char *jarname); |
| static void SetJavaCommandLineProp(char* classname, char* jarfile, int argc, char** argv); |
| #ifdef GAMMA |
| static void SetJavaLauncherProp(void); |
| #endif |
| |
| #ifdef JAVA_ARGS |
| static void TranslateDashJArgs(int *pargc, char ***pargv); |
| static jboolean AddApplicationOptions(void); |
| #endif |
| |
| static void PrintJavaVersion(JNIEnv *env); |
| static void PrintUsage(void); |
| static jint PrintXUsage(void); |
| |
| static void SetPaths(int argc, char **argv); |
| |
| /* Maximum supported entries from jvm.cfg. */ |
| #define INIT_MAX_KNOWN_VMS 10 |
| /* Values for vmdesc.flag */ |
| #define VM_UNKNOWN -1 |
| #define VM_KNOWN 0 |
| #define VM_ALIASED_TO 1 |
| #define VM_WARN 2 |
| #define VM_ERROR 3 |
| #define VM_IF_SERVER_CLASS 4 |
| #define VM_IGNORE 5 |
| struct vmdesc { |
| char *name; |
| int flag; |
| char *alias; |
| char *server_class; |
| }; |
| static struct vmdesc *knownVMs = NULL; |
| static int knownVMsCount = 0; |
| static int knownVMsLimit = 0; |
| |
| static void GrowKnownVMs(); |
| static int KnownVMIndex(const char* name); |
| static void FreeKnownVMs(); |
| |
| jboolean ServerClassMachine(); |
| |
| /* flag which if set suppresses error messages from the launcher */ |
| static int noExitErrorMessage = 0; |
| |
| /* |
| * Entry point. |
| */ |
| int |
| main(int argc, char ** argv) |
| { |
| JavaVM *vm = 0; |
| JNIEnv *env = 0; |
| char *jarfile = 0; |
| char *classname = 0; |
| char *s = 0; |
| char *main_class = NULL; |
| jstring mainClassName; |
| jclass mainClass; |
| jmethodID mainID; |
| jobjectArray mainArgs; |
| int ret; |
| InvocationFunctions ifn; |
| jlong start, end; |
| char jrepath[MAXPATHLEN], jvmpath[MAXPATHLEN]; |
| char ** original_argv = argv; |
| |
| /* |
| * Error message to print or display; by default the message will |
| * only be displayed in a window. |
| */ |
| char * message = "Fatal exception occurred. Program will exit."; |
| jboolean messageDest = JNI_FALSE; |
| |
| if (getenv("_JAVA_LAUNCHER_DEBUG") != 0) { |
| _launcher_debug = JNI_TRUE; |
| printf("----_JAVA_LAUNCHER_DEBUG----\n"); |
| } |
| |
| #ifndef GAMMA |
| /* |
| * Make sure the specified version of the JRE is running. |
| * |
| * There are three things to note about the SelectVersion() routine: |
| * 1) If the version running isn't correct, this routine doesn't |
| * return (either the correct version has been exec'd or an error |
| * was issued). |
| * 2) Argc and Argv in this scope are *not* altered by this routine. |
| * It is the responsibility of subsequent code to ignore the |
| * arguments handled by this routine. |
| * 3) As a side-effect, the variable "main_class" is guaranteed to |
| * be set (if it should ever be set). This isn't exactly the |
| * poster child for structured programming, but it is a small |
| * price to pay for not processing a jar file operand twice. |
| * (Note: This side effect has been disabled. See comment on |
| * bugid 5030265 below.) |
| */ |
| SelectVersion(argc, argv, &main_class); |
| #endif /* ifndef GAMMA */ |
| |
| /* copy original argv */ |
| { |
| int i; |
| original_argv = (char**)MemAlloc(sizeof(char*)*(argc+1)); |
| for(i = 0; i < argc+1; i++) |
| original_argv[i] = argv[i]; |
| } |
| |
| CreateExecutionEnvironment(&argc, &argv, |
| jrepath, sizeof(jrepath), |
| jvmpath, sizeof(jvmpath), |
| original_argv); |
| ifn.CreateJavaVM = 0; |
| ifn.GetDefaultJavaVMInitArgs = 0; |
| |
| if (_launcher_debug) |
| start = CounterGet(); |
| if (!LoadJavaVM(jvmpath, &ifn)) { |
| exit(6); |
| } |
| if (_launcher_debug) { |
| end = CounterGet(); |
| printf("%ld micro seconds to LoadJavaVM\n", |
| (long)(jint)Counter2Micros(end-start)); |
| } |
| |
| #ifdef JAVA_ARGS /* javac, jar and friends. */ |
| progname = "java"; |
| #else /* java, oldjava, javaw and friends */ |
| #ifdef PROGNAME |
| progname = PROGNAME; |
| #else |
| progname = *argv; |
| if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) { |
| progname = s + 1; |
| } |
| #endif /* PROGNAME */ |
| #endif /* JAVA_ARGS */ |
| ++argv; |
| --argc; |
| |
| #ifdef JAVA_ARGS |
| /* Preprocess wrapper arguments */ |
| TranslateDashJArgs(&argc, &argv); |
| if (!AddApplicationOptions()) { |
| exit(1); |
| } |
| #endif |
| |
| /* Set default CLASSPATH */ |
| if ((s = getenv("CLASSPATH")) == 0) { |
| s = "."; |
| } |
| #ifndef JAVA_ARGS |
| SetClassPath(s); |
| #endif |
| |
| /* |
| * Parse command line options; if the return value of |
| * ParseArguments is false, the program should exit. |
| */ |
| if (!ParseArguments(&argc, &argv, &jarfile, &classname, &ret)) { |
| exit(ret); |
| } |
| |
| /* Override class path if -jar flag was specified */ |
| if (jarfile != 0) { |
| SetClassPath(jarfile); |
| } |
| |
| /* set the -Dsun.java.command pseudo property */ |
| SetJavaCommandLineProp(classname, jarfile, argc, argv); |
| |
| #ifdef GAMMA |
| /* Set the -Dsun.java.launcher pseudo property */ |
| SetJavaLauncherProp(); |
| #endif |
| |
| /* |
| * Done with all command line processing and potential re-execs so |
| * clean up the environment. |
| */ |
| (void)UnsetEnv(ENV_ENTRY); |
| |
| /* Initialize the virtual machine */ |
| |
| if (_launcher_debug) |
| start = CounterGet(); |
| if (!InitializeJVM(&vm, &env, &ifn)) { |
| ReportErrorMessage("Could not create the Java virtual machine.", |
| JNI_TRUE); |
| exit(1); |
| } |
| |
| if (printVersion || showVersion) { |
| PrintJavaVersion(env); |
| if ((*env)->ExceptionOccurred(env)) { |
| ReportExceptionDescription(env); |
| goto leave; |
| } |
| if (printVersion) { |
| ret = 0; |
| message = NULL; |
| goto leave; |
| } |
| if (showVersion) { |
| fprintf(stderr, "\n"); |
| } |
| } |
| |
| /* If the user specified neither a class name nor a JAR file */ |
| if (jarfile == 0 && classname == 0) { |
| PrintUsage(); |
| message = NULL; |
| goto leave; |
| } |
| |
| #ifndef GAMMA |
| FreeKnownVMs(); /* after last possible PrintUsage() */ |
| #endif |
| |
| if (_launcher_debug) { |
| end = CounterGet(); |
| printf("%ld micro seconds to InitializeJVM\n", |
| (long)(jint)Counter2Micros(end-start)); |
| } |
| |
| /* At this stage, argc/argv have the applications' arguments */ |
| if (_launcher_debug) { |
| int i = 0; |
| printf("Main-Class is '%s'\n", classname ? classname : ""); |
| printf("Apps' argc is %d\n", argc); |
| for (; i < argc; i++) { |
| printf(" argv[%2d] = '%s'\n", i, argv[i]); |
| } |
| } |
| |
| ret = 1; |
| |
| /* |
| * Get the application's main class. |
| * |
| * See bugid 5030265. The Main-Class name has already been parsed |
| * from the manifest, but not parsed properly for UTF-8 support. |
| * Hence the code here ignores the value previously extracted and |
| * uses the pre-existing code to reextract the value. This is |
| * possibly an end of release cycle expedient. However, it has |
| * also been discovered that passing some character sets through |
| * the environment has "strange" behavior on some variants of |
| * Windows. Hence, maybe the manifest parsing code local to the |
| * launcher should never be enhanced. |
| * |
| * Hence, future work should either: |
| * 1) Correct the local parsing code and verify that the |
| * Main-Class attribute gets properly passed through |
| * all environments, |
| * 2) Remove the vestages of maintaining main_class through |
| * the environment (and remove these comments). |
| */ |
| if (jarfile != 0) { |
| mainClassName = GetMainClassName(env, jarfile); |
| if ((*env)->ExceptionOccurred(env)) { |
| ReportExceptionDescription(env); |
| goto leave; |
| } |
| if (mainClassName == NULL) { |
| const char * format = "Failed to load Main-Class manifest " |
| "attribute from\n%s"; |
| message = (char*)MemAlloc((strlen(format) + strlen(jarfile)) * |
| sizeof(char)); |
| sprintf(message, format, jarfile); |
| messageDest = JNI_TRUE; |
| goto leave; |
| } |
| classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); |
| if (classname == NULL) { |
| ReportExceptionDescription(env); |
| goto leave; |
| } |
| mainClass = LoadClass(env, classname); |
| if(mainClass == NULL) { /* exception occured */ |
| ReportExceptionDescription(env); |
| message = "Could not find the main class. Program will exit."; |
| goto leave; |
| } |
| (*env)->ReleaseStringUTFChars(env, mainClassName, classname); |
| } else { |
| mainClassName = NewPlatformString(env, classname); |
| if (mainClassName == NULL) { |
| const char * format = "Failed to load Main Class: %s"; |
| message = (char *)MemAlloc((strlen(format) + strlen(classname)) * |
| sizeof(char) ); |
| sprintf(message, format, classname); |
| messageDest = JNI_TRUE; |
| goto leave; |
| } |
| classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); |
| if (classname == NULL) { |
| ReportExceptionDescription(env); |
| goto leave; |
| } |
| mainClass = LoadClass(env, classname); |
| if(mainClass == NULL) { /* exception occured */ |
| ReportExceptionDescription(env); |
| message = "Could not find the main class. Program will exit."; |
| goto leave; |
| } |
| (*env)->ReleaseStringUTFChars(env, mainClassName, classname); |
| } |
| |
| /* Get the application's main method */ |
| mainID = (*env)->GetStaticMethodID(env, mainClass, "main", |
| "([Ljava/lang/String;)V"); |
| if (mainID == NULL) { |
| if ((*env)->ExceptionOccurred(env)) { |
| ReportExceptionDescription(env); |
| } else { |
| message = "No main method found in specified class."; |
| messageDest = JNI_TRUE; |
| } |
| goto leave; |
| } |
| |
| { /* Make sure the main method is public */ |
| jint mods; |
| jmethodID mid; |
| jobject obj = (*env)->ToReflectedMethod(env, mainClass, |
| mainID, JNI_TRUE); |
| |
| if( obj == NULL) { /* exception occurred */ |
| ReportExceptionDescription(env); |
| goto leave; |
| } |
| |
| mid = |
| (*env)->GetMethodID(env, |
| (*env)->GetObjectClass(env, obj), |
| "getModifiers", "()I"); |
| if ((*env)->ExceptionOccurred(env)) { |
| ReportExceptionDescription(env); |
| goto leave; |
| } |
| |
| mods = (*env)->CallIntMethod(env, obj, mid); |
| if ((mods & 1) == 0) { /* if (!Modifier.isPublic(mods)) ... */ |
| message = "Main method not public."; |
| messageDest = JNI_TRUE; |
| goto leave; |
| } |
| } |
| |
| /* Build argument array */ |
| mainArgs = NewPlatformStringArray(env, argv, argc); |
| if (mainArgs == NULL) { |
| ReportExceptionDescription(env); |
| goto leave; |
| } |
| |
| /* Invoke main method. */ |
| (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); |
| |
| /* |
| * The launcher's exit code (in the absence of calls to |
| * System.exit) will be non-zero if main threw an exception. |
| */ |
| ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; |
| |
| /* |
| * Detach the main thread so that it appears to have ended when |
| * the application's main method exits. This will invoke the |
| * uncaught exception handler machinery if main threw an |
| * exception. An uncaught exception handler cannot change the |
| * launcher's return code except by calling System.exit. |
| */ |
| if ((*vm)->DetachCurrentThread(vm) != 0) { |
| message = "Could not detach main thread."; |
| messageDest = JNI_TRUE; |
| ret = 1; |
| goto leave; |
| } |
| |
| message = NULL; |
| |
| leave: |
| /* |
| * Wait for all non-daemon threads to end, then destroy the VM. |
| * This will actually create a trivial new Java waiter thread |
| * named "DestroyJavaVM", but this will be seen as a different |
| * thread from the one that executed main, even though they are |
| * the same C thread. This allows mainThread.join() and |
| * mainThread.isAlive() to work as expected. |
| */ |
| (*vm)->DestroyJavaVM(vm); |
| |
| if(message != NULL && !noExitErrorMessage) |
| ReportErrorMessage(message, messageDest); |
| return ret; |
| } |
| |
| |
| #ifndef GAMMA |
| /* |
| * Checks the command line options to find which JVM type was |
| * specified. If no command line option was given for the JVM type, |
| * the default type is used. The environment variable |
| * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also |
| * checked as ways of specifying which JVM type to invoke. |
| */ |
| char * |
| CheckJvmType(int *pargc, char ***argv, jboolean speculative) { |
| int i, argi; |
| int argc; |
| char **newArgv; |
| int newArgvIdx = 0; |
| int isVMType; |
| int jvmidx = -1; |
| char *jvmtype = getenv("JDK_ALTERNATE_VM"); |
| |
| argc = *pargc; |
| |
| /* To make things simpler we always copy the argv array */ |
| newArgv = MemAlloc((argc + 1) * sizeof(char *)); |
| |
| /* The program name is always present */ |
| newArgv[newArgvIdx++] = (*argv)[0]; |
| |
| for (argi = 1; argi < argc; argi++) { |
| char *arg = (*argv)[argi]; |
| isVMType = 0; |
| |
| #ifdef JAVA_ARGS |
| if (arg[0] != '-') { |
| newArgv[newArgvIdx++] = arg; |
| continue; |
| } |
| #else |
| if (strcmp(arg, "-classpath") == 0 || |
| strcmp(arg, "-cp") == 0) { |
| newArgv[newArgvIdx++] = arg; |
| argi++; |
| if (argi < argc) { |
| newArgv[newArgvIdx++] = (*argv)[argi]; |
| } |
| continue; |
| } |
| if (arg[0] != '-') break; |
| #endif |
| |
| /* Did the user pass an explicit VM type? */ |
| i = KnownVMIndex(arg); |
| if (i >= 0) { |
| jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ |
| isVMType = 1; |
| *pargc = *pargc - 1; |
| } |
| |
| /* Did the user specify an "alternate" VM? */ |
| else if (strncmp(arg, "-XXaltjvm=", 10) == 0 || strncmp(arg, "-J-XXaltjvm=", 12) == 0) { |
| isVMType = 1; |
| jvmtype = arg+((arg[1]=='X')? 10 : 12); |
| jvmidx = -1; |
| } |
| |
| if (!isVMType) { |
| newArgv[newArgvIdx++] = arg; |
| } |
| } |
| |
| /* |
| * Finish copying the arguments if we aborted the above loop. |
| * NOTE that if we aborted via "break" then we did NOT copy the |
| * last argument above, and in addition argi will be less than |
| * argc. |
| */ |
| while (argi < argc) { |
| newArgv[newArgvIdx++] = (*argv)[argi]; |
| argi++; |
| } |
| |
| /* argv is null-terminated */ |
| newArgv[newArgvIdx] = 0; |
| |
| /* Copy back argv */ |
| *argv = newArgv; |
| *pargc = newArgvIdx; |
| |
| /* use the default VM type if not specified (no alias processing) */ |
| if (jvmtype == NULL) { |
| char* result = knownVMs[0].name+1; |
| /* Use a different VM type if we are on a server class machine? */ |
| if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && |
| (ServerClassMachine() == JNI_TRUE)) { |
| result = knownVMs[0].server_class+1; |
| } |
| if (_launcher_debug) { |
| printf("Default VM: %s\n", result); |
| } |
| return result; |
| } |
| |
| /* if using an alternate VM, no alias processing */ |
| if (jvmidx < 0) |
| return jvmtype; |
| |
| /* Resolve aliases first */ |
| { |
| int loopCount = 0; |
| while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { |
| int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); |
| |
| if (loopCount > knownVMsCount) { |
| if (!speculative) { |
| ReportErrorMessage("Error: Corrupt jvm.cfg file; cycle in alias list.", |
| JNI_TRUE); |
| exit(1); |
| } else { |
| return "ERROR"; |
| /* break; */ |
| } |
| } |
| |
| if (nextIdx < 0) { |
| if (!speculative) { |
| ReportErrorMessage2("Error: Unable to resolve VM alias %s", |
| knownVMs[jvmidx].alias, JNI_TRUE); |
| exit(1); |
| } else { |
| return "ERROR"; |
| } |
| } |
| jvmidx = nextIdx; |
| jvmtype = knownVMs[jvmidx].name+1; |
| loopCount++; |
| } |
| } |
| |
| switch (knownVMs[jvmidx].flag) { |
| case VM_WARN: |
| if (!speculative) { |
| fprintf(stderr, "Warning: %s VM not supported; %s VM will be used\n", |
| jvmtype, knownVMs[0].name + 1); |
| } |
| /* fall through */ |
| case VM_IGNORE: |
| jvmtype = knownVMs[jvmidx=0].name + 1; |
| /* fall through */ |
| case VM_KNOWN: |
| break; |
| case VM_ERROR: |
| if (!speculative) { |
| ReportErrorMessage2("Error: %s VM not supported", jvmtype, JNI_TRUE); |
| exit(1); |
| } else { |
| return "ERROR"; |
| } |
| } |
| |
| return jvmtype; |
| } |
| #endif /* ifndef GAMMA */ |
| |
| /* |
| * Adds a new VM option with the given given name and value. |
| */ |
| static void |
| AddOption(char *str, void *info) |
| { |
| /* |
| * Expand options array if needed to accommodate at least one more |
| * VM option. |
| */ |
| if (numOptions >= maxOptions) { |
| if (options == 0) { |
| maxOptions = 4; |
| options = MemAlloc(maxOptions * sizeof(JavaVMOption)); |
| } else { |
| JavaVMOption *tmp; |
| maxOptions *= 2; |
| tmp = MemAlloc(maxOptions * sizeof(JavaVMOption)); |
| memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); |
| free(options); |
| options = tmp; |
| } |
| } |
| options[numOptions].optionString = str; |
| options[numOptions++].extraInfo = info; |
| } |
| |
| static void |
| SetClassPath(char *s) |
| { |
| char *def = MemAlloc(strlen(s) + 40); |
| sprintf(def, "-Djava.class.path=%s", s); |
| AddOption(def, NULL); |
| } |
| |
| #ifndef GAMMA |
| /* |
| * The SelectVersion() routine ensures that an appropriate version of |
| * the JRE is running. The specification for the appropriate version |
| * is obtained from either the manifest of a jar file (preferred) or |
| * from command line options. |
| */ |
| static void |
| SelectVersion(int argc, char **argv, char **main_class) |
| { |
| char *arg; |
| char **new_argv; |
| char **new_argp; |
| char *operand; |
| char *version = NULL; |
| char *jre = NULL; |
| int jarflag = 0; |
| int restrict_search = -1; /* -1 implies not known */ |
| manifest_info info; |
| char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; |
| char *env_in; |
| int res; |
| |
| /* |
| * If the version has already been selected, set *main_class |
| * with the value passed through the environment (if any) and |
| * simply return. |
| */ |
| if ((env_in = getenv(ENV_ENTRY)) != NULL) { |
| if (*env_in != '\0') |
| *main_class = strdup(env_in); |
| return; |
| } |
| |
| /* |
| * Scan through the arguments for options relevant to multiple JRE |
| * support. For reference, the command line syntax is defined as: |
| * |
| * SYNOPSIS |
| * java [options] class [argument...] |
| * |
| * java [options] -jar file.jar [argument...] |
| * |
| * As the scan is performed, make a copy of the argument list with |
| * the version specification options (new to 1.5) removed, so that |
| * a version less than 1.5 can be exec'd. |
| */ |
| new_argv = MemAlloc((argc + 1) * sizeof(char*)); |
| new_argv[0] = argv[0]; |
| new_argp = &new_argv[1]; |
| argc--; |
| argv++; |
| while ((arg = *argv) != 0 && *arg == '-') { |
| if (strncmp(arg, "-version:", 9) == 0) { |
| version = arg + 9; |
| } else if (strcmp(arg, "-jre-restrict-search") == 0) { |
| restrict_search = 1; |
| } else if (strcmp(arg, "-no-jre-restrict-search") == 0) { |
| restrict_search = 0; |
| } else { |
| if (strcmp(arg, "-jar") == 0) |
| jarflag = 1; |
| /* deal with "unfortunate" classpath syntax */ |
| if ((strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) && |
| (argc >= 2)) { |
| *new_argp++ = arg; |
| argc--; |
| argv++; |
| arg = *argv; |
| } |
| *new_argp++ = arg; |
| } |
| argc--; |
| argv++; |
| } |
| if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ |
| operand = NULL; |
| } else { |
| argc--; |
| *new_argp++ = operand = *argv++; |
| } |
| while (argc-- > 0) /* Copy over [argument...] */ |
| *new_argp++ = *argv++; |
| *new_argp = NULL; |
| |
| /* |
| * If there is a jar file, read the manifest. If the jarfile can't be |
| * read, the manifest can't be read from the jar file, or the manifest |
| * is corrupt, issue the appropriate error messages and exit. |
| * |
| * Even if there isn't a jar file, construct a manifest_info structure |
| * containing the command line information. It's a convenient way to carry |
| * this data around. |
| */ |
| if (jarflag && operand) { |
| if ((res = parse_manifest(operand, &info)) != 0) { |
| if (res == -1) |
| ReportErrorMessage2("Unable to access jarfile %s", |
| operand, JNI_TRUE); |
| else |
| ReportErrorMessage2("Invalid or corrupt jarfile %s", |
| operand, JNI_TRUE); |
| exit(1); |
| } |
| } else { |
| info.manifest_version = NULL; |
| info.main_class = NULL; |
| info.jre_version = NULL; |
| info.jre_restrict_search = 0; |
| } |
| |
| /* |
| * The JRE-Version and JRE-Restrict-Search values (if any) from the |
| * manifest are overwritten by any specified on the command line. |
| */ |
| if (version != NULL) |
| info.jre_version = version; |
| if (restrict_search != -1) |
| info.jre_restrict_search = restrict_search; |
| |
| /* |
| * "Valid" returns (other than unrecoverable errors) follow. Set |
| * main_class as a side-effect of this routine. |
| */ |
| if (info.main_class != NULL) |
| *main_class = strdup(info.main_class); |
| |
| /* |
| * If no version selection information is found either on the command |
| * line or in the manifest, simply return. |
| */ |
| if (info.jre_version == NULL) { |
| free_manifest(); |
| free(new_argv); |
| return; |
| } |
| |
| /* |
| * Check for correct syntax of the version specification (JSR 56). |
| */ |
| if (!valid_version_string(info.jre_version)) { |
| ReportErrorMessage2("Syntax error in version specification \"%s\"", |
| info.jre_version, JNI_TRUE); |
| exit(1); |
| } |
| |
| /* |
| * Find the appropriate JVM on the system. Just to be as forgiving as |
| * possible, if the standard algorithms don't locate an appropriate |
| * jre, check to see if the one running will satisfy the requirements. |
| * This can happen on systems which haven't been set-up for multiple |
| * JRE support. |
| */ |
| jre = LocateJRE(&info); |
| if (_launcher_debug) |
| printf("JRE-Version = %s, JRE-Restrict-Search = %s Selected = %s\n", |
| (info.jre_version?info.jre_version:"null"), |
| (info.jre_restrict_search?"true":"false"), (jre?jre:"null")); |
| if (jre == NULL) { |
| if (acceptable_release(FULL_VERSION, info.jre_version)) { |
| free_manifest(); |
| free(new_argv); |
| return; |
| } else { |
| ReportErrorMessage2( |
| "Unable to locate JRE meeting specification \"%s\"", |
| info.jre_version, JNI_TRUE); |
| exit(1); |
| } |
| } |
| |
| /* |
| * If I'm not the chosen one, exec the chosen one. Returning from |
| * ExecJRE indicates that I am indeed the chosen one. |
| * |
| * The private environment variable _JAVA_VERSION_SET is used to |
| * prevent the chosen one from re-reading the manifest file and |
| * using the values found within to override the (potential) command |
| * line flags stripped from argv (because the target may not |
| * understand them). Passing the MainClass value is an optimization |
| * to avoid locating, expanding and parsing the manifest extra |
| * times. |
| */ |
| if (info.main_class != NULL) |
| (void)strcat(env_entry, info.main_class); |
| (void)putenv(env_entry); |
| ExecJRE(jre, new_argv); |
| free_manifest(); |
| free(new_argv); |
| return; |
| } |
| #endif /* ifndef GAMMA */ |
| |
| /* |
| * Parses command line arguments. Returns JNI_FALSE if launcher |
| * should exit without starting vm (e.g. certain version and usage |
| * options); returns JNI_TRUE if vm needs to be started to process |
| * given options. *pret (the launcher process return value) is set to |
| * 0 for a normal exit. |
| */ |
| static jboolean |
| ParseArguments(int *pargc, char ***pargv, char **pjarfile, |
| char **pclassname, int *pret) |
| { |
| int argc = *pargc; |
| char **argv = *pargv; |
| jboolean jarflag = JNI_FALSE; |
| char *arg; |
| |
| *pret = 1; |
| while ((arg = *argv) != 0 && *arg == '-') { |
| argv++; --argc; |
| if (strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) { |
| if (argc < 1) { |
| ReportErrorMessage2("%s requires class path specification", |
| arg, JNI_TRUE); |
| PrintUsage(); |
| return JNI_FALSE; |
| } |
| SetClassPath(*argv); |
| argv++; --argc; |
| } else if (strcmp(arg, "-jar") == 0) { |
| jarflag = JNI_TRUE; |
| } else if (strcmp(arg, "-help") == 0 || |
| strcmp(arg, "-h") == 0 || |
| strcmp(arg, "-?") == 0) { |
| PrintUsage(); |
| *pret = 0; |
| return JNI_FALSE; |
| } else if (strcmp(arg, "-version") == 0) { |
| printVersion = JNI_TRUE; |
| return JNI_TRUE; |
| } else if (strcmp(arg, "-showversion") == 0) { |
| showVersion = JNI_TRUE; |
| } else if (strcmp(arg, "-X") == 0) { |
| *pret = PrintXUsage(); |
| return JNI_FALSE; |
| /* |
| * The following case provide backward compatibility with old-style |
| * command line options. |
| */ |
| } else if (strcmp(arg, "-fullversion") == 0) { |
| fprintf(stderr, "%s full version \"%s\"\n", progname, |
| FULL_VERSION); |
| *pret = 0; |
| return JNI_FALSE; |
| } else if (strcmp(arg, "-verbosegc") == 0) { |
| AddOption("-verbose:gc", NULL); |
| } else if (strcmp(arg, "-t") == 0) { |
| AddOption("-Xt", NULL); |
| } else if (strcmp(arg, "-tm") == 0) { |
| AddOption("-Xtm", NULL); |
| } else if (strcmp(arg, "-debug") == 0) { |
| AddOption("-Xdebug", NULL); |
| } else if (strcmp(arg, "-noclassgc") == 0) { |
| AddOption("-Xnoclassgc", NULL); |
| } else if (strcmp(arg, "-Xfuture") == 0) { |
| AddOption("-Xverify:all", NULL); |
| } else if (strcmp(arg, "-verify") == 0) { |
| AddOption("-Xverify:all", NULL); |
| } else if (strcmp(arg, "-verifyremote") == 0) { |
| AddOption("-Xverify:remote", NULL); |
| } else if (strcmp(arg, "-noverify") == 0) { |
| AddOption("-Xverify:none", NULL); |
| } else if (strcmp(arg, "-XXsuppressExitMessage") == 0) { |
| noExitErrorMessage = 1; |
| } else if (strncmp(arg, "-prof", 5) == 0) { |
| char *p = arg + 5; |
| char *tmp = MemAlloc(strlen(arg) + 50); |
| if (*p) { |
| sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1); |
| } else { |
| sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof"); |
| } |
| AddOption(tmp, NULL); |
| } else if (strncmp(arg, "-ss", 3) == 0 || |
| strncmp(arg, "-oss", 4) == 0 || |
| strncmp(arg, "-ms", 3) == 0 || |
| strncmp(arg, "-mx", 3) == 0) { |
| char *tmp = MemAlloc(strlen(arg) + 6); |
| sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ |
| AddOption(tmp, NULL); |
| } else if (strcmp(arg, "-checksource") == 0 || |
| strcmp(arg, "-cs") == 0 || |
| strcmp(arg, "-noasyncgc") == 0) { |
| /* No longer supported */ |
| fprintf(stderr, |
| "Warning: %s option is no longer supported.\n", |
| arg); |
| } else if (strncmp(arg, "-version:", 9) == 0 || |
| strcmp(arg, "-no-jre-restrict-search") == 0 || |
| strcmp(arg, "-jre-restrict-search") == 0) { |
| ; /* Ignore machine independent options already handled */ |
| } else if (RemovableMachineDependentOption(arg) ) { |
| ; /* Do not pass option to vm. */ |
| } |
| else { |
| AddOption(arg, NULL); |
| } |
| } |
| |
| if (--argc >= 0) { |
| if (jarflag) { |
| *pjarfile = *argv++; |
| *pclassname = 0; |
| } else { |
| *pjarfile = 0; |
| *pclassname = *argv++; |
| } |
| *pargc = argc; |
| *pargv = argv; |
| } |
| |
| return JNI_TRUE; |
| } |
| |
| /* |
| * Initializes the Java Virtual Machine. Also frees options array when |
| * finished. |
| */ |
| static jboolean |
| InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) |
| { |
| JavaVMInitArgs args; |
| jint r; |
| |
| memset(&args, 0, sizeof(args)); |
| args.version = JNI_VERSION_1_2; |
| args.nOptions = numOptions; |
| args.options = options; |
| args.ignoreUnrecognized = JNI_FALSE; |
| |
| if (_launcher_debug) { |
| int i = 0; |
| printf("JavaVM args:\n "); |
| printf("version 0x%08lx, ", (long)args.version); |
| printf("ignoreUnrecognized is %s, ", |
| args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); |
| printf("nOptions is %ld\n", (long)args.nOptions); |
| for (i = 0; i < numOptions; i++) |
| printf(" option[%2d] = '%s'\n", |
| i, args.options[i].optionString); |
| } |
| |
| r = ifn->CreateJavaVM(pvm, (void **)penv, &args); |
| free(options); |
| return r == JNI_OK; |
| } |
| |
| |
| #define NULL_CHECK0(e) if ((e) == 0) return 0 |
| #define NULL_CHECK(e) if ((e) == 0) return |
| |
| /* |
| * Returns a pointer to a block of at least 'size' bytes of memory. |
| * Prints error message and exits if the memory could not be allocated. |
| */ |
| void * |
| MemAlloc(size_t size) |
| { |
| void *p = malloc(size); |
| if (p == 0) { |
| perror("malloc"); |
| exit(1); |
| } |
| return p; |
| } |
| |
| static jstring platformEncoding = NULL; |
| static jstring getPlatformEncoding(JNIEnv *env) { |
| if (platformEncoding == NULL) { |
| jstring propname = (*env)->NewStringUTF(env, "sun.jnu.encoding"); |
| if (propname) { |
| jclass cls; |
| jmethodID mid; |
| NULL_CHECK0 (cls = (*env)->FindClass(env, "java/lang/System")); |
| NULL_CHECK0 (mid = (*env)->GetStaticMethodID( |
| env, cls, |
| "getProperty", |
| "(Ljava/lang/String;)Ljava/lang/String;")); |
| platformEncoding = (*env)->CallStaticObjectMethod ( |
| env, cls, mid, propname); |
| } |
| } |
| return platformEncoding; |
| } |
| |
| static jboolean isEncodingSupported(JNIEnv *env, jstring enc) { |
| jclass cls; |
| jmethodID mid; |
| NULL_CHECK0 (cls = (*env)->FindClass(env, "java/nio/charset/Charset")); |
| NULL_CHECK0 (mid = (*env)->GetStaticMethodID( |
| env, cls, |
| "isSupported", |
| "(Ljava/lang/String;)Z")); |
| return (jboolean)(*env)->CallStaticObjectMethod (env, cls, mid, enc); |
| } |
| |
| /* |
| * Returns a new Java string object for the specified platform string. |
| */ |
| static jstring |
| NewPlatformString(JNIEnv *env, char *s) |
| { |
| int len = (int)strlen(s); |
| jclass cls; |
| jmethodID mid; |
| jbyteArray ary; |
| jstring enc; |
| |
| if (s == NULL) |
| return 0; |
| enc = getPlatformEncoding(env); |
| |
| ary = (*env)->NewByteArray(env, len); |
| if (ary != 0) { |
| jstring str = 0; |
| (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); |
| if (!(*env)->ExceptionOccurred(env)) { |
| #ifdef GAMMA |
| /* We support running JVM with older JDK, so here we have to deal */ |
| /* with the case that sun.jnu.encoding is undefined (enc == NULL) */ |
| if (enc != NULL && isEncodingSupported(env, enc) == JNI_TRUE) { |
| #else |
| if (isEncodingSupported(env, enc) == JNI_TRUE) { |
| #endif |
| NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); |
| NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", |
| "([BLjava/lang/String;)V")); |
| str = (*env)->NewObject(env, cls, mid, ary, enc); |
| } else { |
| /*If the encoding specified in sun.jnu.encoding is not |
| endorsed by "Charset.isSupported" we have to fall back |
| to use String(byte[]) explicitly here without specifying |
| the encoding name, in which the StringCoding class will |
| pickup the iso-8859-1 as the fallback converter for us. |
| */ |
| NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); |
| NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", |
| "([B)V")); |
| str = (*env)->NewObject(env, cls, mid, ary); |
| } |
| (*env)->DeleteLocalRef(env, ary); |
| return str; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * Returns a new array of Java string objects for the specified |
| * array of platform strings. |
| */ |
| static jobjectArray |
| NewPlatformStringArray(JNIEnv *env, char **strv, int strc) |
| { |
| jarray cls; |
| jarray ary; |
| int i; |
| |
| NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); |
| NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); |
| for (i = 0; i < strc; i++) { |
| jstring str = NewPlatformString(env, *strv++); |
| NULL_CHECK0(str); |
| (*env)->SetObjectArrayElement(env, ary, i, str); |
| (*env)->DeleteLocalRef(env, str); |
| } |
| return ary; |
| } |
| |
| /* |
| * Loads a class, convert the '.' to '/'. |
| */ |
| static jclass |
| LoadClass(JNIEnv *env, char *name) |
| { |
| char *buf = MemAlloc(strlen(name) + 1); |
| char *s = buf, *t = name, c; |
| jclass cls; |
| jlong start, end; |
| |
| if (_launcher_debug) |
| start = CounterGet(); |
| |
| do { |
| c = *t++; |
| *s++ = (c == '.') ? '/' : c; |
| } while (c != '\0'); |
| cls = (*env)->FindClass(env, buf); |
| free(buf); |
| |
| if (_launcher_debug) { |
| end = CounterGet(); |
| printf("%ld micro seconds to load main class\n", |
| (long)(jint)Counter2Micros(end-start)); |
| printf("----_JAVA_LAUNCHER_DEBUG----\n"); |
| } |
| |
| return cls; |
| } |
| |
| |
| /* |
| * Returns the main class name for the specified jar file. |
| */ |
| static jstring |
| GetMainClassName(JNIEnv *env, char *jarname) |
| { |
| #define MAIN_CLASS "Main-Class" |
| jclass cls; |
| jmethodID mid; |
| jobject jar, man, attr; |
| jstring str, result = 0; |
| |
| NULL_CHECK0(cls = (*env)->FindClass(env, "java/util/jar/JarFile")); |
| NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", |
| "(Ljava/lang/String;)V")); |
| NULL_CHECK0(str = NewPlatformString(env, jarname)); |
| NULL_CHECK0(jar = (*env)->NewObject(env, cls, mid, str)); |
| NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "getManifest", |
| "()Ljava/util/jar/Manifest;")); |
| man = (*env)->CallObjectMethod(env, jar, mid); |
| if (man != 0) { |
| NULL_CHECK0(mid = (*env)->GetMethodID(env, |
| (*env)->GetObjectClass(env, man), |
| "getMainAttributes", |
| "()Ljava/util/jar/Attributes;")); |
| attr = (*env)->CallObjectMethod(env, man, mid); |
| if (attr != 0) { |
| NULL_CHECK0(mid = (*env)->GetMethodID(env, |
| (*env)->GetObjectClass(env, attr), |
| "getValue", |
| "(Ljava/lang/String;)Ljava/lang/String;")); |
| NULL_CHECK0(str = NewPlatformString(env, MAIN_CLASS)); |
| result = (*env)->CallObjectMethod(env, attr, mid, str); |
| } |
| } |
| return result; |
| } |
| |
| #ifdef JAVA_ARGS |
| static char *java_args[] = JAVA_ARGS; |
| static char *app_classpath[] = APP_CLASSPATH; |
| |
| /* |
| * For tools convert 'javac -J-ms32m' to 'java -ms32m ...' |
| */ |
| static void |
| TranslateDashJArgs(int *pargc, char ***pargv) |
| { |
| const int NUM_ARGS = (sizeof(java_args) / sizeof(char *)); |
| int argc = *pargc; |
| char **argv = *pargv; |
| int nargc = argc + NUM_ARGS; |
| char **nargv = MemAlloc((nargc + 1) * sizeof(char *)); |
| int i; |
| |
| *pargc = nargc; |
| *pargv = nargv; |
| |
| /* Copy the VM arguments (i.e. prefixed with -J) */ |
| for (i = 0; i < NUM_ARGS; i++) { |
| char *arg = java_args[i]; |
| if (arg[0] == '-' && arg[1] == 'J') { |
| *nargv++ = arg + 2; |
| } |
| } |
| |
| for (i = 0; i < argc; i++) { |
| char *arg = argv[i]; |
| if (arg[0] == '-' && arg[1] == 'J') { |
| if (arg[2] == '\0') { |
| ReportErrorMessage("Error: the -J option should not be " |
| "followed by a space.", JNI_TRUE); |
| exit(1); |
| } |
| *nargv++ = arg + 2; |
| } |
| } |
| |
| /* Copy the rest of the arguments */ |
| for (i = 0; i < NUM_ARGS; i++) { |
| char *arg = java_args[i]; |
| if (arg[0] != '-' || arg[1] != 'J') { |
| *nargv++ = arg; |
| } |
| } |
| for (i = 0; i < argc; i++) { |
| char *arg = argv[i]; |
| if (arg[0] != '-' || arg[1] != 'J') { |
| *nargv++ = arg; |
| } |
| } |
| *nargv = 0; |
| } |
| |
| /* |
| * For our tools, we try to add 3 VM options: |
| * -Denv.class.path=<envcp> |
| * -Dapplication.home=<apphome> |
| * -Djava.class.path=<appcp> |
| * <envcp> is the user's setting of CLASSPATH -- for instance the user |
| * tells javac where to find binary classes through this environment |
| * variable. Notice that users will be able to compile against our |
| * tools classes (sun.tools.javac.Main) only if they explicitly add |
| * tools.jar to CLASSPATH. |
| * <apphome> is the directory where the application is installed. |
| * <appcp> is the classpath to where our apps' classfiles are. |
| */ |
| static jboolean |
| AddApplicationOptions() |
| { |
| const int NUM_APP_CLASSPATH = (sizeof(app_classpath) / sizeof(char *)); |
| char *s, *envcp, *appcp, *apphome; |
| char home[MAXPATHLEN]; /* application home */ |
| char separator[] = { PATH_SEPARATOR, '\0' }; |
| int size, i; |
| int strlenHome; |
| |
| s = getenv("CLASSPATH"); |
| if (s) { |
| /* 40 for -Denv.class.path= */ |
| envcp = (char *)MemAlloc(strlen(s) + 40); |
| sprintf(envcp, "-Denv.class.path=%s", s); |
| AddOption(envcp, NULL); |
| } |
| |
| if (!GetApplicationHome(home, sizeof(home))) { |
| ReportErrorMessage("Can't determine application home", JNI_TRUE); |
| return JNI_FALSE; |
| } |
| |
| /* 40 for '-Dapplication.home=' */ |
| apphome = (char *)MemAlloc(strlen(home) + 40); |
| sprintf(apphome, "-Dapplication.home=%s", home); |
| AddOption(apphome, NULL); |
| |
| /* How big is the application's classpath? */ |
| size = 40; /* 40: "-Djava.class.path=" */ |
| strlenHome = (int)strlen(home); |
| for (i = 0; i < NUM_APP_CLASSPATH; i++) { |
| size += strlenHome + (int)strlen(app_classpath[i]) + 1; /* 1: separator */ |
| } |
| appcp = (char *)MemAlloc(size + 1); |
| strcpy(appcp, "-Djava.class.path="); |
| for (i = 0; i < NUM_APP_CLASSPATH; i++) { |
| strcat(appcp, home); /* c:\program files\myapp */ |
| strcat(appcp, app_classpath[i]); /* \lib\myapp.jar */ |
| strcat(appcp, separator); /* ; */ |
| } |
| appcp[strlen(appcp)-1] = '\0'; /* remove trailing path separator */ |
| AddOption(appcp, NULL); |
| return JNI_TRUE; |
| } |
| #endif |
| |
| /* |
| * inject the -Dsun.java.command pseudo property into the args structure |
| * this pseudo property is used in the HotSpot VM to expose the |
| * Java class name and arguments to the main method to the VM. The |
| * HotSpot VM uses this pseudo property to store the Java class name |
| * (or jar file name) and the arguments to the class's main method |
| * to the instrumentation memory region. The sun.java.command pseudo |
| * property is not exported by HotSpot to the Java layer. |
| */ |
| void |
| SetJavaCommandLineProp(char *classname, char *jarfile, |
| int argc, char **argv) |
| { |
| |
| int i = 0; |
| size_t len = 0; |
| char* javaCommand = NULL; |
| char* dashDstr = "-Dsun.java.command="; |
| |
| if (classname == NULL && jarfile == NULL) { |
| /* unexpected, one of these should be set. just return without |
| * setting the property |
| */ |
| return; |
| } |
| |
| /* if the class name is not set, then use the jarfile name */ |
| if (classname == NULL) { |
| classname = jarfile; |
| } |
| |
| /* determine the amount of memory to allocate assuming |
| * the individual components will be space separated |
| */ |
| len = strlen(classname); |
| for (i = 0; i < argc; i++) { |
| len += strlen(argv[i]) + 1; |
| } |
| |
| /* allocate the memory */ |
| javaCommand = (char*) MemAlloc(len + strlen(dashDstr) + 1); |
| |
| /* build the -D string */ |
| *javaCommand = '\0'; |
| strcat(javaCommand, dashDstr); |
| strcat(javaCommand, classname); |
| |
| for (i = 0; i < argc; i++) { |
| /* the components of the string are space separated. In |
| * the case of embedded white space, the relationship of |
| * the white space separated components to their true |
| * positional arguments will be ambiguous. This issue may |
| * be addressed in a future release. |
| */ |
| strcat(javaCommand, " "); |
| strcat(javaCommand, argv[i]); |
| } |
| |
| AddOption(javaCommand, NULL); |
| } |
| |
| /* |
| * JVM wants to know launcher type, so tell it. |
| */ |
| #ifdef GAMMA |
| void SetJavaLauncherProp() { |
| AddOption("-Dsun.java.launcher=" LAUNCHER_TYPE, NULL); |
| } |
| #endif |
| |
| /* |
| * Prints the version information from the java.version and other properties. |
| */ |
| static void |
| PrintJavaVersion(JNIEnv *env) |
| { |
| jclass ver; |
| jmethodID print; |
| |
| NULL_CHECK(ver = (*env)->FindClass(env, "sun/misc/Version")); |
| NULL_CHECK(print = (*env)->GetStaticMethodID(env, ver, "print", "()V")); |
| |
| (*env)->CallStaticVoidMethod(env, ver, print); |
| } |
| |
| /* |
| * Prints default usage message. |
| */ |
| static void |
| PrintUsage(void) |
| { |
| int i; |
| |
| fprintf(stdout, |
| "Usage: %s [-options] class [args...]\n" |
| " (to execute a class)\n" |
| " or %s [-options] -jar jarfile [args...]\n" |
| " (to execute a jar file)\n" |
| "\n" |
| "where options include:\n", |
| progname, |
| progname); |
| |
| #ifndef GAMMA |
| PrintMachineDependentOptions(); |
| |
| if ((knownVMs[0].flag == VM_KNOWN) || |
| (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { |
| fprintf(stdout, " %s\t to select the \"%s\" VM\n", |
| knownVMs[0].name, knownVMs[0].name+1); |
| } |
| for (i=1; i<knownVMsCount; i++) { |
| if (knownVMs[i].flag == VM_KNOWN) |
| fprintf(stdout, " %s\t to select the \"%s\" VM\n", |
| knownVMs[i].name, knownVMs[i].name+1); |
| } |
| for (i=1; i<knownVMsCount; i++) { |
| if (knownVMs[i].flag == VM_ALIASED_TO) |
| fprintf(stdout, " %s\t is a synonym for " |
| "the \"%s\" VM [deprecated]\n", |
| knownVMs[i].name, knownVMs[i].alias+1); |
| } |
| |
| /* The first known VM is the default */ |
| { |
| const char* defaultVM = knownVMs[0].name+1; |
| const char* punctuation = "."; |
| const char* reason = ""; |
| if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && |
| (ServerClassMachine() == JNI_TRUE)) { |
| defaultVM = knownVMs[0].server_class+1; |
| punctuation = ", "; |
| reason = "because you are running on a server-class machine.\n"; |
| } |
| fprintf(stdout, " The default VM is %s%s\n", |
| defaultVM, punctuation); |
| fprintf(stdout, " %s\n", |
| reason); |
| } |
| #endif /* ifndef GAMMA */ |
| |
| fprintf(stdout, |
| " -cp <class search path of directories and zip/jar files>\n" |
| " -classpath <class search path of directories and zip/jar files>\n" |
| " A %c separated list of directories, JAR archives,\n" |
| " and ZIP archives to search for class files.\n" |
| " -D<name>=<value>\n" |
| " set a system property\n" |
| " -verbose[:class|gc|jni]\n" |
| " enable verbose output\n" |
| " -version print product version and exit\n" |
| " -version:<value>\n" |
| " require the specified version to run\n" |
| " -showversion print product version and continue\n" |
| " -jre-restrict-search | -jre-no-restrict-search\n" |
| " include/exclude user private JREs in the version search\n" |
| " -? -help print this help message\n" |
| " -X print help on non-standard options\n" |
| " -ea[:<packagename>...|:<classname>]\n" |
| " -enableassertions[:<packagename>...|:<classname>]\n" |
| " enable assertions\n" |
| " -da[:<packagename>...|:<classname>]\n" |
| " -disableassertions[:<packagename>...|:<classname>]\n" |
| " disable assertions\n" |
| " -esa | -enablesystemassertions\n" |
| " enable system assertions\n" |
| " -dsa | -disablesystemassertions\n" |
| " disable system assertions\n" |
| " -agentlib:<libname>[=<options>]\n" |
| " load native agent library <libname>, e.g. -agentlib:hprof\n" |
| " see also, -agentlib:jdwp=help and -agentlib:hprof=help\n" |
| " -agentpath:<pathname>[=<options>]\n" |
| " load native agent library by full pathname\n" |
| " -javaagent:<jarpath>[=<options>]\n" |
| " load Java programming language agent, see java.lang.instrument\n" |
| |
| ,PATH_SEPARATOR); |
| } |
| |
| /* |
| * Print usage message for -X options. |
| */ |
| static jint |
| PrintXUsage(void) |
| { |
| char path[MAXPATHLEN]; |
| char buf[128]; |
| size_t n; |
| FILE *fp; |
| |
| GetXUsagePath(path, sizeof(path)); |
| fp = fopen(path, "r"); |
| if (fp == 0) { |
| fprintf(stderr, "Can't open %s\n", path); |
| return 1; |
| } |
| while ((n = fread(buf, 1, sizeof(buf), fp)) != 0) { |
| fwrite(buf, 1, n, stdout); |
| } |
| fclose(fp); |
| return 0; |
| } |
| |
| #ifndef GAMMA |
| |
| /* |
| * Read the jvm.cfg file and fill the knownJVMs[] array. |
| * |
| * The functionality of the jvm.cfg file is subject to change without |
| * notice and the mechanism will be removed in the future. |
| * |
| * The lexical structure of the jvm.cfg file is as follows: |
| * |
| * jvmcfg := { vmLine } |
| * vmLine := knownLine |
| * | aliasLine |
| * | warnLine |
| * | ignoreLine |
| * | errorLine |
| * | predicateLine |
| * | commentLine |
| * knownLine := flag "KNOWN" EOL |
| * warnLine := flag "WARN" EOL |
| * ignoreLine := flag "IGNORE" EOL |
| * errorLine := flag "ERROR" EOL |
| * aliasLine := flag "ALIASED_TO" flag EOL |
| * predicateLine := flag "IF_SERVER_CLASS" flag EOL |
| * commentLine := "#" text EOL |
| * flag := "-" identifier |
| * |
| * The semantics are that when someone specifies a flag on the command line: |
| * - if the flag appears on a knownLine, then the identifier is used as |
| * the name of the directory holding the JVM library (the name of the JVM). |
| * - if the flag appears as the first flag on an aliasLine, the identifier |
| * of the second flag is used as the name of the JVM. |
| * - if the flag appears on a warnLine, the identifier is used as the |
| * name of the JVM, but a warning is generated. |
| * - if the flag appears on an ignoreLine, the identifier is recognized as the |
| * name of a JVM, but the identifier is ignored and the default vm used |
| * - if the flag appears on an errorLine, an error is generated. |
| * - if the flag appears as the first flag on a predicateLine, and |
| * the machine on which you are running passes the predicate indicated, |
| * then the identifier of the second flag is used as the name of the JVM, |
| * otherwise the identifier of the first flag is used as the name of the JVM. |
| * If no flag is given on the command line, the first vmLine of the jvm.cfg |
| * file determines the name of the JVM. |
| * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, |
| * since they only make sense if someone hasn't specified the name of the |
| * JVM on the command line. |
| * |
| * The intent of the jvm.cfg file is to allow several JVM libraries to |
| * be installed in different subdirectories of a single JRE installation, |
| * for space-savings and convenience in testing. |
| * The intent is explicitly not to provide a full aliasing or predicate |
| * mechanism. |
| */ |
| jint |
| ReadKnownVMs(const char *jrepath, char * arch, jboolean speculative) |
| { |
| FILE *jvmCfg; |
| char jvmCfgName[MAXPATHLEN+20]; |
| char line[MAXPATHLEN+20]; |
| int cnt = 0; |
| int lineno = 0; |
| jlong start, end; |
| int vmType; |
| char *tmpPtr; |
| char *altVMName; |
| char *serverClassVMName; |
| static char *whiteSpace = " \t"; |
| if (_launcher_debug) { |
| start = CounterGet(); |
| } |
| |
| strcpy(jvmCfgName, jrepath); |
| strcat(jvmCfgName, FILESEP "lib" FILESEP); |
| strcat(jvmCfgName, arch); |
| strcat(jvmCfgName, FILESEP "jvm.cfg"); |
| |
| jvmCfg = fopen(jvmCfgName, "r"); |
| if (jvmCfg == NULL) { |
| if (!speculative) { |
| ReportErrorMessage2("Error: could not open `%s'", jvmCfgName, |
| JNI_TRUE); |
| exit(1); |
| } else { |
| return -1; |
| } |
| } |
| while (fgets(line, sizeof(line), jvmCfg) != NULL) { |
| vmType = VM_UNKNOWN; |
| lineno++; |
| if (line[0] == '#') |
| continue; |
| if (line[0] != '-') { |
| fprintf(stderr, "Warning: no leading - on line %d of `%s'\n", |
| lineno, jvmCfgName); |
| } |
| if (cnt >= knownVMsLimit) { |
| GrowKnownVMs(cnt); |
| } |
| line[strlen(line)-1] = '\0'; /* remove trailing newline */ |
| tmpPtr = line + strcspn(line, whiteSpace); |
| if (*tmpPtr == 0) { |
| fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", |
| lineno, jvmCfgName); |
| } else { |
| /* Null-terminate this string for strdup below */ |
| *tmpPtr++ = 0; |
| tmpPtr += strspn(tmpPtr, whiteSpace); |
| if (*tmpPtr == 0) { |
| fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", |
| lineno, jvmCfgName); |
| } else { |
| if (!strncmp(tmpPtr, "KNOWN", strlen("KNOWN"))) { |
| vmType = VM_KNOWN; |
| } else if (!strncmp(tmpPtr, "ALIASED_TO", strlen("ALIASED_TO"))) { |
| tmpPtr += strcspn(tmpPtr, whiteSpace); |
| if (*tmpPtr != 0) { |
| tmpPtr += strspn(tmpPtr, whiteSpace); |
| } |
| if (*tmpPtr == 0) { |
| fprintf(stderr, "Warning: missing VM alias on line %d of `%s'\n", |
| lineno, jvmCfgName); |
| } else { |
| /* Null terminate altVMName */ |
| altVMName = tmpPtr; |
| tmpPtr += strcspn(tmpPtr, whiteSpace); |
| *tmpPtr = 0; |
| vmType = VM_ALIASED_TO; |
| } |
| } else if (!strncmp(tmpPtr, "WARN", strlen("WARN"))) { |
| vmType = VM_WARN; |
| } else if (!strncmp(tmpPtr, "IGNORE", strlen("IGNORE"))) { |
| vmType = VM_IGNORE; |
| } else if (!strncmp(tmpPtr, "ERROR", strlen("ERROR"))) { |
| vmType = VM_ERROR; |
| } else if (!strncmp(tmpPtr, |
| "IF_SERVER_CLASS", |
| strlen("IF_SERVER_CLASS"))) { |
| tmpPtr += strcspn(tmpPtr, whiteSpace); |
| if (*tmpPtr != 0) { |
| tmpPtr += strspn(tmpPtr, whiteSpace); |
| } |
| if (*tmpPtr == 0) { |
| fprintf(stderr, "Warning: missing server class VM on line %d of `%s'\n", |
| lineno, jvmCfgName); |
| } else { |
| /* Null terminate server class VM name */ |
| serverClassVMName = tmpPtr; |
| tmpPtr += strcspn(tmpPtr, whiteSpace); |
| *tmpPtr = 0; |
| vmType = VM_IF_SERVER_CLASS; |
| } |
| } else { |
| fprintf(stderr, "Warning: unknown VM type on line %d of `%s'\n", |
| lineno, &jvmCfgName[0]); |
| vmType = VM_KNOWN; |
| } |
| } |
| } |
| |
| if (_launcher_debug) |
| printf("jvm.cfg[%d] = ->%s<-\n", cnt, line); |
| if (vmType != VM_UNKNOWN) { |
| knownVMs[cnt].name = strdup(line); |
| knownVMs[cnt].flag = vmType; |
| switch (vmType) { |
| default: |
| break; |
| case VM_ALIASED_TO: |
| knownVMs[cnt].alias = strdup(altVMName); |
| if (_launcher_debug) { |
| printf(" name: %s vmType: %s alias: %s\n", |
| knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); |
| } |
| break; |
| case VM_IF_SERVER_CLASS: |
| knownVMs[cnt].server_class = strdup(serverClassVMName); |
| if (_launcher_debug) { |
| printf(" name: %s vmType: %s server_class: %s\n", |
| knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); |
| } |
| break; |
| } |
| cnt++; |
| } |
| } |
| fclose(jvmCfg); |
| knownVMsCount = cnt; |
| |
| if (_launcher_debug) { |
| end = CounterGet(); |
| printf("%ld micro seconds to parse jvm.cfg\n", |
| (long)(jint)Counter2Micros(end-start)); |
| } |
| |
| return cnt; |
| } |
| |
| |
| static void |
| GrowKnownVMs(int minimum) |
| { |
| struct vmdesc* newKnownVMs; |
| int newMax; |
| |
| newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); |
| if (newMax <= minimum) { |
| newMax = minimum; |
| } |
| newKnownVMs = (struct vmdesc*) MemAlloc(newMax * sizeof(struct vmdesc)); |
| if (knownVMs != NULL) { |
| memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); |
| } |
| free(knownVMs); |
| knownVMs = newKnownVMs; |
| knownVMsLimit = newMax; |
| } |
| |
| |
| /* Returns index of VM or -1 if not found */ |
| static int |
| KnownVMIndex(const char* name) |
| { |
| int i; |
| if (strncmp(name, "-J", 2) == 0) name += 2; |
| for (i = 0; i < knownVMsCount; i++) { |
| if (!strcmp(name, knownVMs[i].name)) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| static void |
| FreeKnownVMs() |
| { |
| int i; |
| for (i = 0; i < knownVMsCount; i++) { |
| free(knownVMs[i].name); |
| knownVMs[i].name = NULL; |
| } |
| free(knownVMs); |
| } |
| |
| #endif /* ifndef GAMMA */ |