The .hh files created with the header file generator are all
included here as are the C functions implementing these methods.
- $Id: native.c 771 2003-12-13 23:11:08Z stefan $
+ $Id: native.c 912 2004-02-05 21:20:33Z twisti $
*/
#include "asmpart.h"
#include "tables.h"
#include "loader.h"
+#include "jni.h"
#include "toolbox/loging.h"
#include "toolbox/memory.h"
#include "threads/thread.h"
struct java_lang_ClassLoader *SystemClassLoader = NULL;
/* for raising exceptions from native methods */
-java_objectheader* exceptionptr = NULL;
+THREADSPECIFIC java_objectheader* _exceptionptr = NULL;
/************* use classinfo structure as java.lang.Class object **************/
void use_class_as_object(classinfo *c)
{
vftbl *vt;
- vftbl *newtbl;
+/* vftbl *newtbl; */
if (!class_java_lang_Class)
class_java_lang_Class = class_new(utf_new_char ("java/lang/Class"));
}
/* throws a NoClassDefFoundError with message */
- exceptionptr = native_new_and_init_string(class_java_lang_NoClassDefFoundError,
+ *exceptionptr = native_new_and_init_string(class_java_lang_NoClassDefFoundError,
javastring_new(classname));
}
}
/* throws a LinkageError with message */
- exceptionptr = native_new_and_init_string(class_java_lang_LinkageError,
+ *exceptionptr = native_new_and_init_string(class_java_lang_LinkageError,
javastring_new(classname));
}
+void throw_exception_message(char *classname, char *message)
+{
+ classinfo *c = class_new(utf_new_char(classname));
+
+ if (!c->linked)
+ panic("...");
+
+ *exceptionptr = native_new_and_init_string(c,
+ javastring_new_char(message));
+}
+
+
/*********************** function: native_loadclasses **************************
load classes required for native methods
class_new(utf_new_char("java/lang/NoSuchMethodException"));
/* load classes for wrapping primitive types */
- class_java_lang_Double =
- class_new( utf_new_char ("java/lang/Double") );
+ class_java_lang_Double = class_new(utf_new_char("java/lang/Double"));
class_init(class_java_lang_Double);
- class_java_lang_Float =
- class_new(utf_new_char("java/lang/Float"));
- class_java_lang_Character =
- class_new(utf_new_char("java/lang/Character"));
- class_java_lang_Integer =
- class_new(utf_new_char("java/lang/Integer"));
- class_java_lang_Long =
- class_new(utf_new_char("java/lang/Long"));
- class_java_lang_Byte =
- class_new(utf_new_char("java/lang/Byte"));
- class_java_lang_Short =
- class_new(utf_new_char("java/lang/Short"));
- class_java_lang_Boolean =
- class_new(utf_new_char("java/lang/Boolean"));
- class_java_lang_Void =
- class_new(utf_new_char("java/lang/Void"));
-
- classesLoaded=1;
- log_text("native_loadclasses finished");
+ class_java_lang_Float = class_new(utf_new_char("java/lang/Float"));
+ class_java_lang_Character = class_new(utf_new_char("java/lang/Character"));
+ class_java_lang_Integer = class_new(utf_new_char("java/lang/Integer"));
+ class_java_lang_Long = class_new(utf_new_char("java/lang/Long"));
+ class_java_lang_Byte = class_new(utf_new_char("java/lang/Byte"));
+ class_java_lang_Short = class_new(utf_new_char("java/lang/Short"));
+ class_java_lang_Boolean = class_new(utf_new_char("java/lang/Boolean"));
+ class_java_lang_Void = class_new(utf_new_char("java/lang/Void"));
+
+ classesLoaded = 1;
}
methodinfo *m;
/* find method addClass of java.lang.ClassLoader */
- m = class_resolvemethod(
- class_java_lang_ClassLoader,
+ m = class_resolvemethod(class_java_lang_ClassLoader,
utf_new_char("addClass"),
utf_new_char("(Ljava/lang/Class;)")
);
- if (!m) panic("warning: cannot initialize classloader");
+ if (!m)
+ panic("warning: cannot initialize classloader");
/* prepare class to be passed as argument */
use_class_as_object (c);
/* call 'addClass' */
asm_calljavafunction(m,
- (java_objectheader*) SystemClassLoader,
- (java_objectheader*) c,
- NULL,
- NULL
- );
+ (java_objectheader*) SystemClassLoader,
+ (java_objectheader*) c,
+ NULL,
+ NULL
+ );
}
+
/*************** adds a library to the vector of loaded libraries *************/
void systemclassloader_addlibrary(java_objectheader *o)
log_text("systemclassloader_addlibrary");
}
+
/*****************************************************************************
create systemclassloader object and initialize instance fields
void init_systemclassloader()
{
- if (!SystemClassLoader) {
- native_loadclasses();
- log_text("Initializing new system class loader");
- /* create object and call initializer */
- SystemClassLoader = (java_lang_ClassLoader*) native_new_and_init(class_java_lang_ClassLoader);
-/* heap_addreference((void**) &SystemClassLoader); */
-
- /* systemclassloader has no parent */
- SystemClassLoader->parent = NULL;
- SystemClassLoader->initialized = true;
- }
- log_text("leaving system class loader");
+ if (!SystemClassLoader) {
+ native_loadclasses();
+ log_text("Initializing new system class loader");
+ /* create object and call initializer */
+ SystemClassLoader = (java_lang_ClassLoader*) native_new_and_init(class_java_lang_ClassLoader);
+
+ /* systemclassloader has no parent */
+ SystemClassLoader->parent = NULL;
+ SystemClassLoader->initialized = true;
+ }
+ log_text("leaving system class loader");
}
methodinfo *m;
jfieldID id;
- m = class_resolvemethod(loader_load_sysclass(NULL,utf_new_char ("java/util/Vector")),
+ m = class_resolvemethod(loader_load_sysclass(NULL, utf_new_char ("java/util/Vector")),
utf_new_char("addElement"),
- utf_new_char("(Ljava/lang/Object;)V")
- );
+ utf_new_char("(Ljava/lang/Object;)V"));
if (!m) panic("cannot initialize classloader");
- id = envTable.GetStaticFieldID(&env,class_java_lang_ClassLoader,"loadedLibraryNames","Ljava/util/Vector;");
+ id = envTable.GetStaticFieldID(&env,
+ class_java_lang_ClassLoader,
+ "loadedLibraryNames",
+ "Ljava/util/Vector;");
+
if (!id) panic("can not access ClassLoader");
asm_calljavafunction(m,
- GetStaticObjectField(&env,class_java_lang_ClassLoader,id),
- o,
- NULL,
- NULL
- );
+ envTable.GetStaticObjectField(&env, class_java_lang_ClassLoader, id),
+ o,
+ NULL,
+ NULL);
}
/********************* function: native_setclasspath **************************/
-void native_setclasspath (char *path)
+void native_setclasspath(char *path)
{
/* set searchpath for classfiles */
classpath = path;
#ifdef JOWENN_DEBUG
buffer_len =
- utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
+ utf_strlen(cname) + utf_strlen(mname) + utf_strlen(desc) + 64;
buffer = MNEW(char, buffer_len);
strcpy(buffer, "searching matching function in native table:");
- utf_sprint(buffer+strlen(buffer), mname);
+ utf_sprint(buffer+strlen(buffer), mname);
strcpy(buffer+strlen(buffer), ": ");
- utf_sprint(buffer+strlen(buffer), desc);
+ utf_sprint(buffer+strlen(buffer), desc);
strcpy(buffer+strlen(buffer), " for class ");
- utf_sprint(buffer+strlen(buffer), cname);
+ utf_sprint(buffer+strlen(buffer), cname);
log_text(buffer);
buffer = MNEW(char, buffer_len);
strcpy(buffer, "comparing with:");
- utf_sprint(buffer+strlen(buffer), n->methodname);
+ utf_sprint(buffer+strlen(buffer), n->methodname);
strcpy (buffer+strlen(buffer), ": ");
- utf_sprint(buffer+strlen(buffer), n->descriptor);
+ utf_sprint(buffer+strlen(buffer), n->descriptor);
strcpy(buffer+strlen(buffer), " for class ");
- utf_sprint(buffer+strlen(buffer), n->classname);
+ utf_sprint(buffer+strlen(buffer), n->classname);
log_text(buffer);
MFREE(buffer, char, buffer_len);
-
}
}
#endif
MFREE(buffer, char, buffer_len);
-
exit(1);
-
+ /* keep compiler happy */
return NULL;
}
static char stringbuffer[MAXSTRINGSIZE];
-char *javastring_tochar (java_objectheader *so)
+char *javastring_tochar(java_objectheader *so)
{
- java_lang_String *s = (java_lang_String*) so;
+ java_lang_String *s = (java_lang_String *) so;
java_chararray *a;
s4 i;
- log_text("javastring_tochar");
-
if (!s)
return "";
+
a = s->value;
+
if (!a)
return "";
+
if (s->count > MAXSTRINGSIZE)
return "";
+
for (i = 0; i < s->count; i++)
- stringbuffer[i] = a->data[s->offset+i];
+ stringbuffer[i] = a->data[s->offset + i];
+
stringbuffer[i] = '\0';
+
return stringbuffer;
}
}
/* field was not found, raise exception */
- exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
+ *exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
return NULL;
}
}
/* field was not found, raise exception */
- exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
+ *exceptionptr = native_new_and_init(class_java_lang_NoSuchFieldException);
return -1;
}
java_objectheader *o;
/* if c==NULL it is probebly because loader_load failed */
- if (!c) return exceptionptr;
+ if (!c) return *exceptionptr;
o = builtin_new(c); /* create object */
java_objectheader *o;
/* if c==NULL it is probebly because loader_load failed */
- if (!c) return exceptionptr;
+ if (!c) return *exceptionptr;
o = builtin_new(c); /* create object */
js = (java_lang_String *) s->string;
- if (!js || !(a = js->value))
+ if (!js || !js->value)
/* error in hashtable found */
panic("invalid literalstring in hashtable");
+ a = js->value;
+
if (!js->header.vftbl)
/* vftbl of javastring is NULL */
js->header.vftbl = class_java_lang_String -> vftbl;
utf *javastring_toutf(java_lang_String *string, bool isclassname)
{
java_lang_String *str = (java_lang_String *) string;
-/* printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count);
- fflush(stdout);*/
+
+/* printf("javastring_toutf offset: %d, len %d\n",str->offset, str->count); */
+/* fflush(stdout); */
+
return utf_new_u2(str->value->data + str->offset, str->count, isclassname);
}
*******************************************************************************/
-java_objectheader *literalstring_u2 (java_chararray *a, u4 length, bool copymode )
+java_objectheader *literalstring_u2(java_chararray *a, u4 length, u4 offset,
+ bool copymode)
{
literalstring *s; /* hashtable element */
java_lang_String *js; /* u2-array wrapped in javastring */
u4 slot;
u2 i;
-#if JOWENN_DEBUG1
- printf("literalstring_u2: length: %d\n",length);
- log_text("literalstring_u2");
+//#define DEBUG_LITERALSTRING_U2
+#ifdef DEBUG_LITERALSTRING_U2
+ printf("literalstring_u2: length=%d, offset=%d\n", length, offset);
+ fflush(stdout);
#endif
/* find location in hashtable */
- key = unicode_hashkey (a->data, length);
- slot = key & (string_hash.size-1);
+ key = unicode_hashkey(a->data + offset, length);
+ slot = key & (string_hash.size - 1);
s = string_hash.ptr[slot];
while (s) {
-
- js = (java_lang_String *) s->string;
-
- if (js->count == length) {
- /* compare text */
- for (i=0; i<length; i++)
- if (js->value->data[i] != a->data[i]) goto nomatch;
-
- /* string already in hashtable, free memory */
- if (!copymode)
- lit_mem_free(a, sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10);
-
-#ifdef JOWENN_DEBUG1
- log_text("literalstring_u2: foundentry");
- utf_display(javastring_toutf(js,0));
+ js = (java_lang_String *) s->string;
+
+ if (length == js->count) {
+ /* compare text */
+ for (i = 0; i < length; i++) {
+ if (a->data[offset + i] != js->value->data[i])
+ goto nomatch;
+ }
+
+ /* string already in hashtable, free memory */
+ if (!copymode)
+ lit_mem_free(a, sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10);
+
+#ifdef DEBUG_LITERALSTRING_U2
+ printf("literalstring_u2: foundentry at %p\n", js);
+ utf_display(javastring_toutf(js, 0));
+ printf("\n\n");
+ fflush(stdout);
#endif
- return (java_objectheader *) js;
- }
+ return (java_objectheader *) js;
+ }
- nomatch:
- /* follow link in external hash chain */
- s = s->hashlink;
+ nomatch:
+ /* follow link in external hash chain */
+ s = s->hashlink;
}
if (copymode) {
- /* create copy of u2-array for new javastring */
- u4 arraysize = sizeof(java_chararray) + sizeof(u2)*(length-1)+10;
- stringdata = lit_mem_alloc ( arraysize );
- memcpy(stringdata, a, arraysize );
- }
- else
- stringdata = a;
+ /* create copy of u2-array for new javastring */
+ u4 arraysize = sizeof(java_chararray) + sizeof(u2) * (length - 1) + 10;
+ stringdata = lit_mem_alloc(arraysize);
+/* memcpy(stringdata, a, arraysize); */
+ memcpy(&(stringdata->header), &(a->header), sizeof(java_arrayheader));
+ memcpy(&(stringdata->data), &(a->data) + offset, sizeof(u2) * (length - 1) + 10);
+
+ } else {
+ stringdata = a;
+ }
/* location in hashtable found, complete arrayheader */
- stringdata -> header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
- stringdata -> header.size = length;
+ stringdata->header.objheader.vftbl = primitivetype_table[ARRAYTYPE_CHAR].arrayvftbl;
+ stringdata->header.size = length;
/* create new javastring */
- js = LNEW (java_lang_String);
- js -> header.vftbl = class_java_lang_String -> vftbl;
- js -> value = stringdata;
- js -> offset = 0;
- js -> count = length;
+ js = LNEW(java_lang_String);
+ js->header.vftbl = class_java_lang_String->vftbl;
+ js->value = stringdata;
+ js->offset = 0;
+ js->count = length;
/* create new literalstring */
- s = NEW (literalstring);
+ s = NEW(literalstring);
s->hashlink = string_hash.ptr[slot];
s->string = (java_objectheader *) js;
string_hash.ptr[slot] = s;
string_hash.entries++;
/* reorganization of hashtable */
- if ( string_hash.entries > (string_hash.size*2)) {
-
- /* reorganization of hashtable, average length of
+ if (string_hash.entries > (string_hash.size * 2)) {
+ /* reorganization of hashtable, average length of
the external chains is approx. 2 */
- u4 i;
- literalstring *s;
- hashtable newhash; /* the new hashtable */
+ u4 i;
+ literalstring *s;
+ hashtable newhash; /* the new hashtable */
- /* create new hashtable, double the size */
- init_hashtable(&newhash, string_hash.size*2);
- newhash.entries=string_hash.entries;
+ /* create new hashtable, double the size */
+ init_hashtable(&newhash, string_hash.size * 2);
+ newhash.entries = string_hash.entries;
- /* transfer elements to new hashtable */
- for (i=0; i<string_hash.size; i++) {
- s = string_hash.ptr[i];
- while (s) {
- literalstring *nexts = s -> hashlink;
- js = (java_lang_String*) s->string;
- slot = (unicode_hashkey(js->value->data,js->count)) & (newhash.size-1);
+ /* transfer elements to new hashtable */
+ for (i = 0; i < string_hash.size; i++) {
+ s = string_hash.ptr[i];
+ while (s) {
+ literalstring *nexts = s->hashlink;
+ js = (java_lang_String *) s->string;
+ slot = unicode_hashkey(js->value->data, js->count) & (newhash.size - 1);
- s->hashlink = newhash.ptr[slot];
- newhash.ptr[slot] = s;
+ s->hashlink = newhash.ptr[slot];
+ newhash.ptr[slot] = s;
- /* follow link in external hash chain */
- s = nexts;
- }
- }
+ /* follow link in external hash chain */
+ s = nexts;
+ }
+ }
- /* dispose old table */
- MFREE (string_hash.ptr, void*, string_hash.size);
- string_hash = newhash;
+ /* dispose old table */
+ MFREE(string_hash.ptr, void*, string_hash.size);
+ string_hash = newhash;
}
-#ifdef JOWENN_DEBUG1
- log_text("literalstring_u2: newly created");
-/* utf_display(javastring_toutf(js,0));*/
+
+#ifdef DEBUG_LITERALSTRING_U2
+ printf("literalstring_u2: newly created at %p\n", js);
+ utf_display(javastring_toutf(js, 0));
+ printf("\n\n");
+ fflush(stdout);
#endif
return (java_objectheader *) js;
}
+
/******************** Function: literalstring_new *****************************
creates a new javastring with the text of the utf-symbol
*******************************************************************************/
-java_objectheader *literalstring_new (utf *u)
+java_objectheader *literalstring_new(utf *u)
{
char *utf_ptr = u->text; /* pointer to current unicode character in utf string */
u4 utflength = utf_strlen(u); /* length of utf-string if uncompressed */
/*if (utflength==0) while (1) sleep(60);*/
/* log_text("------------------"); */
/* allocate memory */
- a = lit_mem_alloc (sizeof(java_chararray) + sizeof(u2)*(utflength-1)+10 );
+ a = lit_mem_alloc(sizeof(java_chararray) + sizeof(u2) * (utflength - 1) + 10);
+
/* convert utf-string to u2-array */
- for (i=0; i<utflength; i++) a->data[i] = utf_nextu2(&utf_ptr);
+ for (i = 0; i < utflength; i++)
+ a->data[i] = utf_nextu2(&utf_ptr);
- return literalstring_u2(a, utflength, false);
+ return literalstring_u2(a, utflength, 0, false);
}
******************************************************************************/
-void literalstring_free (java_objectheader* sobj)
+void literalstring_free(java_objectheader* sobj)
{
- java_lang_String *s = (java_lang_String*) sobj;
+ java_lang_String *s = (java_lang_String *) sobj;
java_chararray *a = s->value;
log_text("literalstring_free called");
/* dispose memory of java.lang.String object */
- LFREE (s, java_lang_String);
+ LFREE(s, java_lang_String);
+
/* dispose memory of java-characterarray */
- LFREE (a, sizeof(java_chararray) + sizeof(u2)*(a->header.size-1)); /* +10 ?? */
+ LFREE(a, sizeof(java_chararray) + sizeof(u2) * (a->header.size - 1)); /* +10 ?? */
}
-
-
void copy_vftbl(vftbl **dest, vftbl *src)
{
*dest = src;
if (!types) return NULL;
/* determine required buffer-size */
- for (i=0;i<types->header.size;i++) {
- classinfo *c = (classinfo *) types->data[i];
- buffer_size = buffer_size + c->name->blength+2;
+ for (i = 0; i < types->header.size; i++) {
+ classinfo *c = (classinfo *) types->data[i];
+ buffer_size = buffer_size + c->name->blength + 2;
}
- if (retType) buffer_size+=strlen(retType);
+ if (retType) buffer_size += strlen(retType);
/* allocate buffer */
buffer = MNEW(u1, buffer_size);
/* method-desciptor starts with parenthesis */
*pos++ = '(';
- for (i=0;i<types->header.size;i++) {
+ for (i = 0; i < types->header.size; i++) {
+ char ch;
- char ch;
- /* current argument */
+ /* current argument */
classinfo *c = (classinfo *) types->data[i];
+
/* current position in utf-text */
char *utf_ptr = c->name->text;
/* determine type of argument */
- if ( (ch = utf_nextu2(&utf_ptr)) == '[' ) {
-
+ if ((ch = utf_nextu2(&utf_ptr)) == '[') {
/* arrayclass */
- for ( utf_ptr--; utf_ptr<utf_end(c->name); utf_ptr++)
- *pos++ = *utf_ptr; /* copy text */
+ for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
+ *pos++ = *utf_ptr; /* copy text */
+ }
- } else
- {
- /* check for primitive types */
- for (j=0; j<PRIMITIVETYPE_COUNT; j++) {
+ } else {
+ /* check for primitive types */
+ for (j = 0; j < PRIMITIVETYPE_COUNT; j++) {
+ char *utf_pos = utf_ptr - 1;
+ char *primitive = primitivetype_table[j].wrapname;
- char *utf_pos = utf_ptr-1;
- char *primitive = primitivetype_table[j].wrapname;
+ /* compare text */
+ while (utf_pos < utf_end(c->name)) {
+ if (*utf_pos++ != *primitive++) goto nomatch;
+ }
- /* compare text */
- while (utf_pos<utf_end(c->name))
- if (*utf_pos++ != *primitive++) goto nomatch;
+ /* primitive type found */
+ *pos++ = primitivetype_table[j].typesig;
+ goto next_type;
- /* primitive type found */
- *pos++ = primitivetype_table[j].typesig;
- goto next_type;
+ nomatch:
+ }
- nomatch:
- }
+ /* no primitive type and no arrayclass, so must be object */
+ *pos++ = 'L';
- /* no primitive type and no arrayclass, so must be object */
- *pos++ = 'L';
- /* copy text */
- for ( utf_ptr--; utf_ptr<utf_end(c->name); utf_ptr++)
- *pos++ = *utf_ptr;
- *pos++ = ';';
+ /* copy text */
+ for (utf_ptr--; utf_ptr < utf_end(c->name); utf_ptr++) {
+ *pos++ = *utf_ptr;
+ }
+
+ *pos++ = ';';
next_type:
- }
+ }
}
*pos++ = ')';
if (retType) {
- for (i=0;i<strlen(retType);i++) {
- *pos++=retType[i];
- }
+ for (i = 0; i < strlen(retType); i++) {
+ *pos++ = retType[i];
+ }
}
+
/* create utf-string */
- result = utf_new(buffer,(pos-buffer));
+ result = utf_new(buffer, (pos - buffer));
MFREE(buffer, u1, buffer_size);
return result;
}
+
+
+
+/******************************************************************************************
+
+ get the exceptions which can be thrown by a method
+
+*******************************************************************************************/
+
+java_objectarray* get_exceptiontypes(methodinfo *m)
+{
+}
+
+
+
+
+
/******************************************************************************************
get the returntype class of a method
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