#ifdef STATISTICS statistics option.
[cacao.git] / src / cacao / cacao.c
index 4f63b5be0a10562fee357e35897855b534f8cbff..3fb59b5b2ec9a5b3565ca1bb186f5ddaa6d6cd09 100644 (file)
@@ -1,9 +1,9 @@
-/* cacao/cacao.c - contains main() of cacao
+/* src/cacao/cacao.c - contains main() of cacao
 
    Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
    R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
    C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
-   TU Wien
+   Institut f. Computersprachen - TU Wien
 
    This file is part of CACAO.
 
@@ -29,6 +29,7 @@
    Changes: Andi Krall
             Mark Probst
             Philipp Tomsich
+            Christian Thalinger
 
    This module does the following tasks:
      - Command line option handling
@@ -36,7 +37,7 @@
      - Calling the class loader
      - Running the main method
 
-   $Id: cacao.c 1686 2004-12-05 23:56:47Z twisti $
+   $Id: cacao.c 2022 2005-03-09 12:07:57Z twisti $
 
 */
 
 #include <stdlib.h>
 #include <string.h>
 
+#include "config.h"
 #include "cacao/cacao.h"
 #include "mm/boehm.h"
 #include "mm/memory.h"
+#include "native/jni.h"
 #include "native/native.h"
 #include "toolbox/logging.h"
 #include "vm/exceptions.h"
 #include "vm/loader.h"
 #include "vm/options.h"
 #include "vm/statistics.h"
+#include "vm/stringlocal.h"
 #include "vm/tables.h"
 #include "vm/jit/asmpart.h"
 #include "vm/jit/jit.h"
 
 #ifdef TYPEINFO_DEBUG_TEST
-#include "typeinfo.h"
+#include "vm/jit/verify/typeinfo.h"
 #endif
 
 
+/* define heap sizes **********************************************************/
+
+#define HEAP_MAXSIZE      64 * 1024 * 1024; /* default 64MB                   */
+#define HEAP_STARTSIZE    2 * 1024 * 1024;  /* default 2MB                    */
+
+
+/* Invocation API variables ***************************************************/
+
+JavaVM *jvm;                        /* denotes a Java VM                      */
+JNIEnv *env;                        /* pointer to native method interface     */
+JDK1_1InitArgs vm_args;             /* JDK 1.1 VM initialization arguments    */
+
+
 bool cacao_initializing;
 
-char *classpath;                        /* contains classpath                 */
+char *bootclasspath;                    /* contains the boot classpath        */
+char *classpath;                        /* contains the classpath             */
+
 char *mainstring;
 static classinfo *mainclass;
 
@@ -73,89 +93,108 @@ static classinfo *mainclass;
 void **stackbottom = 0;
 #endif
 
+
 /* define command line options ************************************************/
 
-#define OPT_CLASSPATH   2
-#define OPT_D           3
-#define OPT_MS          4
-#define OPT_MX          5
-#define OPT_VERBOSE1    6
-#define OPT_VERBOSE     7
-#define OPT_VERBOSEGC   8
-#define OPT_VERBOSECALL 9
-#define OPT_NOIEEE      10
-#define OPT_SOFTNULL    11
-#define OPT_TIME        12
-#define OPT_STAT        13
-#define OPT_LOG         14
-#define OPT_CHECK       15
-#define OPT_LOAD        16
-#define OPT_METHOD      17
-#define OPT_SIGNATURE   18
-#define OPT_SHOW        19
-#define OPT_ALL         20
-#define OPT_OLOOP       24
-#define OPT_INLINING   25
-#ifdef STATIC_ANALYSIS
-#define OPT_RT          26
-#define OPT_XTA         27 
-#define OPT_VTA         28
-#endif
-#define OPT_VERBOSETC   29
-#define OPT_NOVERIFY    30
-#define OPT_LIBERALUTF  31
+#define OPT_CLASSPATH        2
+#define OPT_D                3
+#define OPT_MS               4
+#define OPT_MX               5
+#define OPT_VERBOSE1         6
+#define OPT_VERBOSE          7
+#define OPT_VERBOSEGC        8
+#define OPT_VERBOSECALL      9
+#define OPT_NOIEEE           10
+#define OPT_SOFTNULL         11
+#define OPT_TIME             12
+#define OPT_STAT             13
+#define OPT_LOG              14
+#define OPT_CHECK            15
+#define OPT_LOAD             16
+#define OPT_METHOD           17
+#define OPT_SIGNATURE        18
+#define OPT_SHOW             19
+#define OPT_ALL              20
+#define OPT_OLOOP            24
+#define OPT_INLINING        25
+
+#define STATIC_ANALYSIS
+#if defined(STATIC_ANALYSIS)
+# define OPT_RT              26
+# define OPT_XTA             27 
+# define OPT_VTA             28
+#endif /* STATIC_ANALYSIS */
+
+#define OPT_VERBOSETC        29
+#define OPT_NOVERIFY         30
+#define OPT_LIBERALUTF       31
 #define OPT_VERBOSEEXCEPTION 32
 #define OPT_EAGER            33
-#ifdef LSRA
-#define OPT_LSRA 34
-#endif
+
+#if defined(LSRA)
+# define OPT_LSRA            34
+#endif /* LSRA */
+
+#define OPT_JAR              35
+#define OPT_BOOTCLASSPATH    36
+#define OPT_BOOTCLASSPATH_A  37
+#define OPT_BOOTCLASSPATH_P  38
+#define OPT_VERSION          39
+
 
 opt_struct opts[] = {
-       {"classpath",        true,   OPT_CLASSPATH},
-       {"cp",               true,   OPT_CLASSPATH},
-       {"D",                true,   OPT_D},
-       {"Xms",              true,   OPT_MS},
-       {"Xmx",              true,   OPT_MX},
-       {"ms",               true,   OPT_MS},
-       {"mx",               true,   OPT_MX},
-       {"noasyncgc",        false,  OPT_IGNORE},
-       {"noverify",         false,  OPT_NOVERIFY},
-       {"liberalutf",       false,  OPT_LIBERALUTF},
-       {"oss",              true,   OPT_IGNORE},
-       {"ss",               true,   OPT_IGNORE},
-       {"v",                false,  OPT_VERBOSE1},
-       {"verbose",          false,  OPT_VERBOSE},
-       {"verbosegc",        false,  OPT_VERBOSEGC},
-       {"verbosecall",      false,  OPT_VERBOSECALL},
-       {"verboseexception", false,  OPT_VERBOSEEXCEPTION},
+       { "classpath",         true,  OPT_CLASSPATH },
+       { "cp",                true,  OPT_CLASSPATH },
+       { "D",                 true,  OPT_D },
+       { "Xms",               true,  OPT_MS },
+       { "Xmx",               true,  OPT_MX },
+       { "ms",                true,  OPT_MS },
+       { "mx",                true,  OPT_MX },
+       { "noasyncgc",         false, OPT_IGNORE },
+       { "noverify",          false, OPT_NOVERIFY },
+       { "liberalutf",        false, OPT_LIBERALUTF },
+       { "oss",               true,  OPT_IGNORE },
+       { "ss",                true,  OPT_IGNORE },
+       { "v",                 false, OPT_VERBOSE1 },
+       { "verbose",           false, OPT_VERBOSE },
+       { "verbosegc",         false, OPT_VERBOSEGC },
+       { "verbosecall",       false, OPT_VERBOSECALL },
+       { "verboseexception",  false, OPT_VERBOSEEXCEPTION },
 #ifdef TYPECHECK_VERBOSE
-       {"verbosetc",        false,  OPT_VERBOSETC},
+       { "verbosetc",         false, OPT_VERBOSETC },
 #endif
 #if defined(__ALPHA__)
-       {"noieee",           false,  OPT_NOIEEE},
+       { "noieee",            false, OPT_NOIEEE },
 #endif
-       {"softnull",         false,  OPT_SOFTNULL},
-       {"time",             false,  OPT_TIME},
-       {"stat",             false,  OPT_STAT},
-       {"log",              true,   OPT_LOG},
-       {"c",                true,   OPT_CHECK},
-       {"l",                false,  OPT_LOAD},
-    { "eager",            false,  OPT_EAGER },
-       {"m",                true,   OPT_METHOD},
-       {"sig",              true,   OPT_SIGNATURE},
-       {"s",                true,   OPT_SHOW},
-       {"all",              false,  OPT_ALL},
-       {"oloop",            false,  OPT_OLOOP},
-       {"i",                    true,   OPT_INLINING},
+       { "softnull",          false, OPT_SOFTNULL },
+       { "time",              false, OPT_TIME },
+#if defined(STATISTICS)
+       { "stat",              false, OPT_STAT },
+#endif
+       { "log",               true,  OPT_LOG },
+       { "c",                 true,  OPT_CHECK },
+       { "l",                 false, OPT_LOAD },
+    { "eager",             false, OPT_EAGER },
+       { "m",                 true,  OPT_METHOD },
+       { "sig",               true,  OPT_SIGNATURE },
+       { "s",                 true,  OPT_SHOW },
+       { "all",               false, OPT_ALL },
+       { "oloop",             false, OPT_OLOOP },
+       { "i",                 true,  OPT_INLINING },
 #ifdef STATIC_ANALYSIS
-       {"rt",               false,  OPT_RT},
-       {"xta",              false,  OPT_XTA},
-       {"vta",              false,  OPT_VTA},
+       { "rt",                false, OPT_RT },
+       { "xta",               false, OPT_XTA },
+       { "vta",               false, OPT_VTA },
 #endif
 #ifdef LSRA
-       {"lsra", false, OPT_LSRA},
+       { "lsra",              false, OPT_LSRA },
 #endif
-       {NULL,               false,  0}
+       { "jar",               false, OPT_JAR },
+       { "Xbootclasspath:",   true,  OPT_BOOTCLASSPATH },
+       { "Xbootclasspath/a:", true,  OPT_BOOTCLASSPATH_A },
+       { "Xbootclasspath/p:", true,  OPT_BOOTCLASSPATH_P },
+       { "version",           false, OPT_VERSION },
+       { NULL,                false, 0 }
 };
 
 
@@ -167,15 +206,20 @@ Prints the correct usage syntax to stdout.
 
 static void usage()
 {
-       printf("USAGE: cacao [options] classname [program arguments]\n");
+       printf("Usage: cacao [options] classname [program arguments]\n\n");
+
        printf("Options:\n");
-       printf("          -cp path ............. specify a path to look for classes\n");
-       printf("          -classpath path ...... specify a path to look for classes\n");
-       printf("          -Dpropertyname=value . add an entry to the property list\n");
-       printf("          -Xmx maxmem[kK|mM] ... specify the size for the heap\n");
-       printf("          -Xms initmem[kK|mM] .. specify the initial size for the heap\n");
-       printf("          -mx maxmem[kK|mM] .... specify the size for the heap\n");
-       printf("          -ms initmem[kK|mM] ... specify the initial size for the heap\n");
+       printf("    -cp <path>               specify a path to look for classes\n");
+       printf("    -classpath <path>        specify a path to look for classes\n");
+       printf("    -jar jarfile             execute a jar file\n");
+       printf("    -D<name>=<value>         add an entry to the property list\n");
+       printf("    -Xmx<size>[kK|mM]        specify the size for the heap\n");
+       printf("    -Xms<size>[kK|mM]        specify the initial size for the heap\n");
+       printf("    -mx<size>[kK|mM]         specify the size for the heap\n");
+       printf("    -ms<size>[kK|mM]         specify the initial size for the heap\n");
+       printf("    -Xbootclasspath:<path>   set search path for bootstrap classes and resources\n");
+       printf("    -Xbootclasspath/a:<path> append to end of bootstrap class path\n");
+       printf("    -Xbootclasspath/p:<path> prepend in front of bootstrap class path\n");
        printf("          -v ................... write state-information\n");
        printf("          -verbose ............. write more information\n");
        printf("          -verbosegc ........... write message for each GC\n");
@@ -184,6 +228,7 @@ static void usage()
 #ifdef TYPECHECK_VERBOSE
        printf("          -verbosetc ........... write debug messages while typechecking\n");
 #endif
+       printf("    -version                 print product version and exit\n");
 #if defined(__ALPHA__)
        printf("          -noieee .............. don't use ieee compliant arithmetic\n");
 #endif
@@ -191,7 +236,9 @@ static void usage()
        printf("          -liberalutf........... don't warn about overlong UTF-8 sequences\n");
        printf("          -softnull ............ use software nullpointer check\n");
        printf("          -time ................ measure the runtime\n");
+#if defined(STATISTICS)
        printf("          -stat ................ detailed compiler statistics\n");
+#endif
        printf("          -log logfile ......... specify a name for the logfile\n");
        printf("          -c(heck)b(ounds) ..... don't check array bounds\n");
        printf("                  s(ync) ....... don't check for synchronization\n");
@@ -228,11 +275,100 @@ static void usage()
 }   
 
 
+/* version *********************************************************************
+
+   Only prints cacao version information and exits.
+
+*******************************************************************************/
+
+static void version()
+{
+       printf("cacao "VERSION"\n");
+       exit(0);
+}
+
+
 #ifdef TYPECHECK_STATISTICS
 void typecheck_print_statistics(FILE *file);
 #endif
 
 
+
+/* getmainclassfromjar ************************************************************
+
+   gets the name of the main class form a jar's manifest file
+
+**********************************************************************************/
+
+char *getmainclassnamefromjar(JNIEnv *env, char *mainstring)
+{
+       jclass class;
+       jmethodID mid;
+       jobject obj;
+               
+       class = (*env)->FindClass(env, "java/util/jar/JarFile");
+       if (class == NULL) {
+               log_text("unable to find java.util.jar.JarFile");
+               throw_main_exception_exit();
+       }
+       
+       mid = (*env)->GetMethodID(NULL, class, "<init>","(Ljava/lang/String;)V");
+       if (mid == NULL) {
+               log_text("unable to find constructor in java.util.jar.JarFile");
+               cacao_exit(1);
+       }
+
+       /* open jarfile */
+       obj = (*env)->NewObject(NULL,class,mid,((*env)->NewStringUTF(NULL,(char*)mainstring)));
+       if ((*env)->ExceptionOccurred(NULL) != NULL) {
+               (*env)->ExceptionDescribe(NULL);
+               cacao_exit(1);
+       }
+       
+       mid = (*env)->GetMethodID(NULL, class, "getManifest","()Ljava/util/jar/Manifest;");
+       if (mid == NULL) {
+               log_text("unable to find getMainfest method");
+               cacao_exit(1);
+       }
+
+       /* get manifest object */
+       obj = (*env)->CallObjectMethod(NULL,obj,mid);
+       if ((*env)->ExceptionOccurred(NULL) != NULL) {
+               (*env)->ExceptionDescribe(NULL);
+               cacao_exit(1);
+       }
+
+       mid = (*env)->GetMethodID(NULL, (jclass)((java_objectheader*) obj)->vftbl->class, "getMainAttributes","()Ljava/util/jar/Attributes;");
+       if (mid == NULL) {
+               log_text("unable to find getMainAttributes method");
+               cacao_exit(1);
+       }
+
+       /* get Main Attributes */
+       obj = (*env)->CallObjectMethod(NULL,obj,mid);
+       if ((*env)->ExceptionOccurred(NULL) != NULL) {
+               (*env)->ExceptionDescribe(NULL);
+               cacao_exit(1);
+       }
+
+
+       mid = (*env)->GetMethodID(NULL, (jclass)((java_objectheader*) obj)->vftbl->class, "getValue","(Ljava/lang/String;)Ljava/lang/String;");
+       if (mid == NULL) {
+               log_text("unable to find getValue method");
+               cacao_exit(1);
+       }
+
+       /* get property Main-Class */
+       obj = (*env)->CallObjectMethod(NULL,obj,mid,(*env)->NewStringUTF(NULL,"Main-Class"));
+       if ((*env)->ExceptionOccurred(NULL) != NULL) {
+               (*env)->ExceptionDescribe(NULL);
+               cacao_exit(1);
+       }
+       
+       return javastring_tochar((java_objectheader *) obj);
+}
+
+
 /*
  * void exit_handler(void)
  * -----------------------
@@ -261,15 +397,19 @@ void exit_handler(void)
 
        if (opt_verbose || getcompilingtime || opt_stat) {
                log_text("CACAO terminated");
+
+#if defined(STATISTICS)
                if (opt_stat) {
                        print_stats();
 #ifdef TYPECHECK_STATISTICS
                        typecheck_print_statistics(get_logfile());
 #endif
                }
+
                if (getcompilingtime)
                        print_times();
                mem_usagelog(1);
+#endif
        }
 }
 
@@ -288,13 +428,14 @@ int main(int argc, char **argv)
        /********** interne (nur fuer main relevante Optionen) **************/
    
        char logfilename[200] = "";
-       u4 heapmaxsize = 64 * 1024 * 1024;
-       u4 heapstartsize = 200 * 1024;
+       u4 heapmaxsize;
+       u4 heapstartsize;
        char *cp;
        s4    cplen;
        bool startit = true;
        char *specificmethodname = NULL;
        char *specificsignature = NULL;
+       bool jar = false;
 
 #if defined(USE_THREADS) && !defined(NATIVE_THREADS)
        stackbottom = &dummy;
@@ -307,31 +448,85 @@ int main(int argc, char **argv)
 
        /************ Collect info from the environment ************************/
 
-       /* set an initial, minimal classpath */
-       classpath = MNEW(char, 2);
-       strcpy(classpath, ".");
+       /* set the bootclasspath */
+
+       cp = getenv("BOOTCLASSPATH");
+       if (cp) {
+               bootclasspath = MNEW(char, strlen(cp) + 1);
+               strcpy(bootclasspath, cp);
+
+       } else {
+               cplen = strlen(CACAO_INSTALL_PREFIX) + strlen(CACAO_RT_JAR_PATH);
+
+               bootclasspath = MNEW(char, cplen + 1);
+               strcpy(bootclasspath, CACAO_INSTALL_PREFIX);
+               strcat(bootclasspath, CACAO_RT_JAR_PATH);
+       }
+
+
+       /* set the classpath */
 
-       /* get classpath environment */
        cp = getenv("CLASSPATH");
        if (cp) {
-               classpath = MREALLOC(classpath,
-                                                        char,
-                                                        strlen(classpath),
-                                                        strlen(classpath) + 1 + strlen(cp) + 1);
-               strcat(classpath, ":");
+               classpath = MNEW(char, strlen(cp) + 1);
                strcat(classpath, cp);
+
+       } else {
+               classpath = MNEW(char, 2);
+               strcpy(classpath, ".");
        }
 
+
        /***************** Interpret the command line *****************/
    
        checknull = false;
        opt_noieee = false;
 
+       heapmaxsize = HEAP_MAXSIZE;
+       heapstartsize = HEAP_STARTSIZE;
+
+
        while ((i = get_opt(argc, argv, opts)) != OPT_DONE) {
                switch (i) {
                case OPT_IGNORE:
                        break;
                        
+               case OPT_BOOTCLASSPATH:
+                       /* Forget default bootclasspath and set the argument as new boot  */
+                       /* classpath.                                                     */
+                       MFREE(bootclasspath, char, strlen(bootclasspath));
+
+                       bootclasspath = MNEW(char, strlen(opt_arg) + 1);
+                       strcpy(bootclasspath, opt_arg);
+                       break;
+
+               case OPT_BOOTCLASSPATH_A:
+                       /* append to end of bootclasspath */
+                       cplen = strlen(bootclasspath);
+
+                       bootclasspath = MREALLOC(bootclasspath,
+                                                                        char,
+                                                                        cplen,
+                                                                        cplen + 1 + strlen(opt_arg) + 1);
+
+                       strcat(bootclasspath, ":");
+                       strcat(bootclasspath, opt_arg);
+                       break;
+
+               case OPT_BOOTCLASSPATH_P:
+                       /* prepend in front of bootclasspath */
+                       cp = bootclasspath;
+                       cplen = strlen(cp);
+
+                       bootclasspath = MNEW(char, strlen(opt_arg) + 1 + cplen + 1);
+
+                       strcpy(bootclasspath, opt_arg);
+                       strcat(bootclasspath, ":");
+                       strcat(bootclasspath, cp);
+
+                       MFREE(cp, char, cplen);
+                       break;
+
                case OPT_CLASSPATH:
                        /* forget old classpath and set the argument as new classpath */
                        MFREE(classpath, char, strlen(classpath));
@@ -339,19 +534,23 @@ int main(int argc, char **argv)
                        classpath = MNEW(char, strlen(opt_arg) + 1);
                        strcpy(classpath, opt_arg);
                        break;
-                               
+
+               case OPT_JAR:
+                       jar = true;
+                       break;
+                       
                case OPT_D:
                        {
-                               int n;
-                               int l = strlen(opt_arg);
-                               for (n = 0; n < l; n++) {
-                                       if (opt_arg[n] == '=') {
-                                               opt_arg[n] = '\0';
-                                               create_property(opt_arg, opt_arg + n + 1);
+                               for (j = 0; j < strlen(opt_arg); j++) {
+                                       if (opt_arg[j] == '=') {
+                                               opt_arg[j] = '\0';
+                                               create_property(opt_arg, opt_arg + j + 1);
                                                goto didit;
                                        }
                                }
-                               usage();
+
+                               /* if no '=' is given, just create an empty property */
+                               create_property(opt_arg, "");
                                        
                        didit: ;
                        }       
@@ -405,7 +604,11 @@ int main(int argc, char **argv)
                case OPT_VERBOSECALL:
                        runverbose = true;
                        break;
-                               
+
+               case OPT_VERSION:
+                       version();
+                       break;
+
                case OPT_NOIEEE:
                        opt_noieee = true;
                        break;
@@ -427,9 +630,11 @@ int main(int argc, char **argv)
                        getloadingtime = true;
                        break;
                                        
+#if defined(STATISTICS)
                case OPT_STAT:
                        opt_stat = true;
                        break;
+#endif
                                        
                case OPT_LOG:
                        strcpy(logfilename, opt_arg);
@@ -513,12 +718,12 @@ int main(int argc, char **argv)
                                switch (opt_arg[j]) {
                                case 'n':
                                     /* define in options.h; Used in main.c, jit.c & inline.c */
-                                    #ifdef INAFTERMAIN
+#ifdef INAFTERMAIN
                                        useinliningm = true;
                                        useinlining = false;
-                                    #else
+#else
                                        useinlining = true;
-                                    #endif
+#endif
                                        break;
                                case 'v':
                                        inlinevirtuals = true;
@@ -541,21 +746,23 @@ int main(int argc, char **argv)
 
 #ifdef STATIC_ANALYSIS
                case OPT_RT:
-                       opt_rt = true;
+                       opt_rt = true; /* default for inlining */
                        break;
 
                case OPT_XTA:
-                       opt_xta = false; /**not yet **/
+                       opt_xta = true; /* in test currently */
                        break;
 
                case OPT_VTA:
+                       printf("\nVTA is not yet available\n");
+                       opt_vta = false;
                        /***opt_vta = true; not yet **/
                        break;
 #endif
 
 #ifdef LSRA
                case OPT_LSRA:
-#if defined(__I386__) || defined(__ALPHA__)
+#if defined(__I386__) || defined(__ALPHA__) || defined (__X86_64__) || defined(__POWERPC__)
                        opt_lsra = true;
 #else
                        printf("LSRA not available for this architecture\n");
@@ -565,6 +772,7 @@ int main(int argc, char **argv)
 #endif
 
                default:
+                       printf("Unknown option: %s\n", argv[opt_ind]);
                        usage();
                }
        }
@@ -573,37 +781,56 @@ int main(int argc, char **argv)
                usage();
 
 
-       /* insert the rt.jar in front of all other classpath entries */
-
-       cplen = strlen(INSTALL_PREFIX) + strlen(CACAO_RT_JAR_PATH);
-       cp = classpath;
-
-       classpath = MNEW(char, cplen + strlen(classpath) + 1);
-       strcpy(classpath, INSTALL_PREFIX);
-       strcat(classpath, CACAO_RT_JAR_PATH);
-       strcat(classpath, cp);
-
-       MFREE(cp, char, strlen(cp));
-
-
        /* transform dots into slashes in the class name */
 
        mainstring = argv[opt_ind++];
-       for (i = strlen(mainstring) - 1; i >= 0; i--) {
-               if (mainstring[i] == '.') mainstring[i] = '/';
-       }
+       if (!jar) { 
+        /* do not mangle jar filename */
+               for (i = strlen(mainstring) - 1; i >= 0; i--) {
+                       if (mainstring[i] == '.') mainstring[i] = '/';
+               }
 
+       } else {
+               /* put jarfile in classpath */
+               cp = classpath;
+               classpath = MNEW(char, strlen(mainstring) + 1 + strlen(classpath) + 1);
+               strcpy(classpath, mainstring);
+               strcat(classpath, ":");
+               strcat(classpath, cp);
+               
+               MFREE(cp, char, strlen(cp));
+       }
 
        /**************************** Program start *****************************/
 
        log_init(logfilename);
+
        if (opt_verbose)
                log_text("CACAO started -------------------------------------------------------");
 
+       /* initialize JavaVM */
+
+       vm_args.version = 0x00010001; /* New in 1.1.2: VM version */
+
+       /* Get the default initialization arguments and set the class path */
+
+       JNI_GetDefaultJavaVMInitArgs(&vm_args);
+       vm_args.classpath = classpath;
+       /* load and initialize a Java VM, return a JNI interface pointer in env */
+
+       JNI_CreateJavaVM(&jvm, &env, &vm_args);
+
+
        /* initialize the garbage collector */
+
        gc_init(heapmaxsize, heapstartsize);
 
        tables_init();
+
+       /* initialize the loader with bootclasspath and append classpath entries */
+
+       suck_init(bootclasspath);
        suck_init(classpath);
 
        cacao_initializing = true;
@@ -621,13 +848,17 @@ int main(int argc, char **argv)
        /* initializes jit compiler and codegen stuff */
        jit_init();
 
+       /* initialize some cacao subsystems */
+
+       utf8_init();
+       class_init_foo();
        loader_init((u1 *) &dummy);
 
-       /* initialize exceptions used in the system */
-       if (!init_system_exceptions())
+       if (!native_init())
                throw_main_exception_exit();
 
-       native_loadclasses();
+       if (!exceptions_init())
+               throw_main_exception_exit();
 
 #if defined(USE_THREADS)
        initThreads((u1 *) &dummy);
@@ -640,51 +871,89 @@ int main(int argc, char **argv)
          classpath 0.09. Another important thing is, that this has to happen
          after initThreads!!! */
 
-       if (!class_init(class_new(utf_new_char("java/lang/System"))))
+       if (!class_init(class_java_lang_System))
                throw_main_exception_exit();
 
-       
-       
-/*        jni_init(); */
        cacao_initializing = false;
 
-       /************************* Start worker routines ********************/
+
+       /* start worker routines **************************************************/
 
        if (startit) {
-               methodinfo *mainmethod;
+               classinfo        *cl;           /* java/lang/ClassLoader              */
+               classinfo        *mainclass;    /* java/lang/Class                    */
+               methodinfo       *m;
                java_objectarray *a; 
-               s4 status;
+               s4                status;
 
                /* set return value to OK */
+
                status = 0;
 
-               /* create, load and link the main class */
-               mainclass = class_new(utf_new_char(mainstring));
+               if (jar) {
+                       /* open jar file with java.util.jar.JarFile */
+                       mainstring = getmainclassnamefromjar((JNIEnv *) &env, mainstring);
+               }
 
-               if (!class_load(mainclass))
-                       throw_main_exception_exit();
+               /* get system classloader */
 
-               if (!class_link(mainclass))
+               m = class_resolveclassmethod(class_java_lang_ClassLoader,
+                                                                        utf_new_char("getSystemClassLoader"),
+                                                                        utf_new_char("()Ljava/lang/ClassLoader;"),
+                                                                        class_java_lang_Object,
+                                                                        false);
+
+               cl = (classinfo *) asm_calljavafunction(m, NULL, NULL, NULL, NULL);
+
+               /* get `loadClass' method */
+
+               m = class_resolveclassmethod(cl->header.vftbl->class,
+                                                                        utf_new_char("loadClass"),
+                                                                        utf_new_char("(Ljava/lang/String;)Ljava/lang/Class;"),
+                                                                        class_java_lang_Object,
+                                                                        false);
+
+               /* load the main class */
+
+               mainclass =
+                       (classinfo *) asm_calljavafunction(m,
+                                                                                          cl,
+                                                                                          javastring_new_char(mainstring),
+                                                                                          NULL,
+                                                                                          NULL);
+
+               /* error loading class, clear exceptionptr for new exception */
+
+               if (*exceptionptr || !mainclass) {
+/*                     *exceptionptr = NULL; */
+
+/*                     *exceptionptr = */
+/*                             new_exception_message(string_java_lang_NoClassDefFoundError, */
+/*                                                                       mainstring); */
                        throw_main_exception_exit();
+               }
 
-               mainmethod = class_resolveclassmethod(mainclass,
-                                                                                         utf_new_char("main"), 
-                                                                                         utf_new_char("([Ljava/lang/String;)V"),
-                                                                                         mainclass,
-                                                                                         false);
+               /* find the `main' method of the main class */
 
-               /* problems with main method? */
-/*             if (*exceptionptr) */
-/*                     throw_exception_exit(); */
+               m = class_resolveclassmethod(mainclass,
+                                                                        utf_new_char("main"), 
+                                                                        utf_new_char("([Ljava/lang/String;)V"),
+                                                                        class_java_lang_Object,
+                                                                        false);
 
                /* there is no main method or it isn't static */
-               if (!mainmethod || !(mainmethod->flags & ACC_STATIC)) {
+
+               if (*exceptionptr || !m || !(m->flags & ACC_STATIC)) {
+                       *exceptionptr = NULL;
+
                        *exceptionptr =
                                new_exception_message(string_java_lang_NoSuchMethodError,
                                                                          "main");
                        throw_main_exception_exit();
                }
 
+               /* build argument array */
+
                a = builtin_anewarray(argc - opt_ind, class_java_lang_String);
                for (i = opt_ind; i < argc; i++) {
                        a->data[i - opt_ind] = 
@@ -697,11 +966,11 @@ int main(int argc, char **argv)
 #endif
                /*class_showmethods(currentThread->group->header.vftbl->class); */
 
-               *threadrootmethod = mainmethod;
-
+               *threadrootmethod = m;
 
                /* here we go... */
-               asm_calljavafunction(mainmethod, a, NULL, NULL, NULL);
+
+               asm_calljavafunction(m, a, NULL, NULL, NULL);
 
                /* exception occurred? */
                if (*exceptionptr) {
@@ -719,6 +988,8 @@ int main(int argc, char **argv)
 
                /* now exit the JavaVM */
 
+/*             (*jvm)->DestroyJavaVM(jvm); */
+
                cacao_exit(status);
        }
 
@@ -846,15 +1117,11 @@ void cacao_exit(s4 status)
 
        /* call the exit function with passed exit status */
 
-       asm_calljavafunction(m,
-#if POINTERSIZE == 8
-                                                (void *) (s8) status,
-#else
-                                                (void *) status,
-#endif
-                                                NULL,
-                                                NULL,
-                                                NULL);
+       /* both inlinevirtual and outsiders not allowed on exit */
+       /*   not sure if permanant or temp restriction          */
+       if (inlinevirtuals) inlineoutsiders = false; 
+
+       asm_calljavafunction(m, (void *) (ptrint) status, NULL, NULL, NULL);
 
        /* this should never happen */