- Calling the class loader
- Running the main method
- $Id: cacao.c 1824 2004-12-27 21:35:23Z motse $
+ $Id: cacao.c 1834 2004-12-29 15:00:25Z twisti $
*/
#include "cacao/cacao.h"
#include "mm/boehm.h"
#include "mm/memory.h"
-#include "native/native.h"
#include "native/jni.h"
+#include "native/native.h"
#include "toolbox/logging.h"
#include "vm/exceptions.h"
#include "vm/global.h"
#endif
+/* define heap sizes **********************************************************/
+
+#define HEAP_MAXSIZE 64 * 1024 * 1024; /* default 64MB */
+#define HEAP_STARTSIZE 2 * 1024 * 1024; /* default 2MB */
+
+
bool cacao_initializing;
-char *classpath; /* contains classpath */
+char *bootclasspath; /* contains the boot classpath */
+char *classpath; /* contains the classpath */
+
char *mainstring;
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
+
+#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
-#define OPT_JAR 35
+
+#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
+
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 },
+ { "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 },
#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
- {"jar", false, OPT_JAR},
- {NULL, false, 0}
+ { "jar", false, OPT_JAR },
+ { "Xbootclasspath:", true, OPT_BOOTCLASSPATH },
+ { "Xbootclasspath/a:", true, OPT_BOOTCLASSPATH_A },
+ { "Xbootclasspath/p:", true, OPT_BOOTCLASSPATH_P },
+ { NULL, false, 0 }
};
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(" -jar jarfile ......... execute a jar file\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");
gets the name of the main class form a jar's manifest file
***************************************************************************/
-utf* getmainclassnamefromjar(mainstring){
+char *getmainclassnamefromjar(mainstring)
+{
jclass class;
jmethodID mid;
jobject obj;
cacao_exit(1);
}
- return javastring_toutf((java_lang_String*)obj,true);
+ return javastring_tochar((java_objectheader *) obj);
}
/********** 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;
/************ 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(INSTALL_PREFIX) + strlen(CACAO_RT_JAR_PATH);
+
+ bootclasspath = MNEW(char, cplen + 1);
+ strcpy(bootclasspath, 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));
classpath = MNEW(char, strlen(opt_arg) + 1);
strcpy(classpath, opt_arg);
break;
-
+
case OPT_JAR:
jar = true;
break;
-
case OPT_D:
{
int n;
#endif
default:
+ printf("Unknown option: %s\n", argv[opt_ind]);
usage();
}
}
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] = '/';
}
+
} else {
/* put jarfile in classpath */
cp = classpath;
log_text("CACAO started -------------------------------------------------------");
/* 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;
if (!class_init(class_new(utf_new_char("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;
if (jar) {
/* open jar file with java.util.jar.JarFile */
- mainclass = class_new(getmainclassnamefromjar(mainstring));
- } else {
- /* create, load and link the main class */
- mainclass = class_new(utf_new_char(mainstring));
+ mainstring = getmainclassnamefromjar(mainstring);
}
+ /* get system classloader */
- if (!class_load(mainclass))
- throw_main_exception_exit();
+ m = class_resolveclassmethod(class_java_lang_ClassLoader,
+ utf_new_char("getSystemClassLoader"),
+ utf_new_char("()Ljava/lang/ClassLoader;"),
+ class_java_lang_Object,
+ false);
- if (!class_link(mainclass))
+ 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] =
#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) {
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