Authors: Reinhard Grafl EMAIL: cacao@complang.tuwien.ac.at
Changes: Mark Probst EMAIL: cacao@complang.tuwien.ac.at
+ Philipp Tomsich EMAIL: cacao@complang.tuwien.ac.at
- Last Change: 1997/05/23
+ Last Change: $Id: headers.c 136 1999-11-09 11:33:46Z schani $
*******************************************************************************/
-#include "global.h"
+#define CACAOH
+#include "config.h" /* phil */
+#include "global.h"
#include "tables.h"
#include "loader.h"
-/******* verschiedene externe Funktionen "faelschen" (=durch Dummys ersetzen),
- damit der Linker zufrieden ist *********/
+/******* replace some external functions *********/
-functionptr native_findfunction
- (unicode *cname, unicode *mname, unicode *desc, bool isstatic)
+functionptr native_findfunction (utf *cname, utf *mname, utf *desc, bool isstatic)
{ return NULL; }
-java_objectheader *literalstring_new (unicode *text)
+java_objectheader *javastring_new (utf *text) /* schani */
{ return NULL; }
-java_objectheader *javastring_new (unicode *text) /* schani */
-{ return NULL; }
+void throw_classnotfoundexception()
+{
+ panic("class not found");
+}
+java_objectheader *literalstring_new (utf *u)
+{ return NULL; }
+
+void literalstring_free (java_objectheader *o) { }
+void stringtable_update () { }
void synchronize_caches() { }
void asm_call_jit_compiler () { }
void asm_calljavamethod () { }
void asm_dumpregistersandcall () { }
+s4 asm_builtin_checkcast(java_objectheader *obj, classinfo *class) { return 0; }
s4 asm_builtin_idiv (s4 a, s4 b) {return 0;}
s4 asm_builtin_irem (s4 a, s4 b) {return 0;}
java_objectheader *native_new_and_init (void *p) { return NULL; }
-/************************ globale Variablen **********************/
+/************************ global variables **********************/
java_objectheader *exceptionptr; /* schani */
int newcompiler = true;
bool verbose = false;
-static chain *nativechain;
+static chain *nativemethod_chain; /* chain with native methods */
+static chain *nativeclass_chain; /* chain with processed classes */
+static chain *ident_chain; /* chain with method and field names in current class */
static FILE *file = NULL;
+static u4 outputsize;
+static bool dopadding;
static void printIDpart (int c)
{
}
-static void printID (unicode *name)
+static void printID (utf *u)
{
+ char *utf_ptr = u->text;
int i;
- for (i=0; i<name->length; i++) {
- printIDpart (name->text[i]);
- }
-}
-
-u4 outputsize;
-bool dopadding;
+ for (i=0; i<utf_strlen(u); i++)
+ printIDpart (utf_nextu2(&utf_ptr));
+}
static void addoutputsize (int len)
{
}
-static u2 *printtype (u2 *desc)
+static char *printtype (char *utf_ptr)
{
u2 c;
- switch (*(desc++)) {
+ switch (utf_nextu2(&utf_ptr)) {
case 'V': fprintf (file, "void");
break;
case 'I':
break;
case '[':
addoutputsize ( sizeof(java_arrayheader*) );
- switch (*(desc++)) {
+ switch (utf_nextu2(&utf_ptr)) {
case 'I': fprintf (file, "java_intarray*"); break;
case 'J': fprintf (file, "java_longarray*"); break;
case 'Z': fprintf (file, "java_booleanarray*"); break;
case 'F': fprintf (file, "java_floatarray*"); break;
case 'D': fprintf (file, "java_doublearray*"); break;
- case '[': fprintf (file, "java_arrayarray*");
- while ((*desc) == '[') desc++;
- if ((*desc)!='L') desc++;
- else while (*(desc++) != ';');
+ case '[': fprintf (file, "java_arrayarray*");
+ while ((c = utf_nextu2(&utf_ptr)) == '[') ;
+ if (c=='L')
+ while (utf_nextu2(&utf_ptr) != ';');
break;
case 'L': fprintf (file, "java_objectarray*");
- while ( *(desc++) != ';');
+ while ( utf_nextu2(&utf_ptr) != ';');
break;
default: panic ("invalid type descriptor");
}
case 'L':
addoutputsize ( sizeof(java_objectheader*));
fprintf (file, "struct ");
- while ( (c = *(desc++)) != ';' ) printIDpart (c);
+ while ( (c = utf_nextu2(&utf_ptr)) != ';' ) printIDpart (c);
fprintf (file, "*");
break;
default: panic ("Unknown type in field descriptor");
}
- return (desc);
+ return utf_ptr;
}
+/******* determine the number of entries of a utf string in the ident chain *****/
+static int searchidentchain_utf(utf *ident)
+{
+ utf *u = chain_first(ident_chain); /* first element of list */
+ int count = 0;
+
+ while (u) {
+ if (u==ident) count++; /* string found */
+ u = chain_next(ident_chain); /* next element in list */
+ }
+
+ return count;
+}
+
+/**************** print structure for direct access to objects ******************/
static void printfields (classinfo *c)
{
u4 i;
fieldinfo *f;
+ int ident_count;
if (!c) {
addoutputsize ( sizeof(java_objectheader) );
fprintf (file," ");
printtype (f->descriptor->text);
fprintf (file, " ");
- unicode_fprint (file, f->name);
- fprintf (file, ";\n");
- }
- }
-}
-
-
-
-
-static void remembermethods (classinfo *c)
-{
- u2 i;
- methodinfo *m;
+ utf_fprint (file, f->name);
- for (i=0; i<c->methodscount; i++) {
- m = &(c->methods[i]);
+ /* rename multiple fieldnames */
+ if (ident_count = searchidentchain_utf(f->name))
+ fprintf(file,"%d",ident_count - 1);
+ chain_addlast(ident_chain,f->name);
- if (m->flags & ACC_NATIVE) {
- chain_addlast (nativechain, m);
+ fprintf (file, ";\n");
}
-
}
}
-
-
+/***************** store prototype for native method in file ******************/
static void printmethod (methodinfo *m)
{
- u2 *d;
+ char *utf_ptr;
u2 paramnum=1;
-
- d = m->descriptor->text;
- while (*(d++) != ')');
-
- printtype (d);
- fprintf (file," ");
- printID (m->class->name);
+ u2 ident_count;
+
+ /* search for return-type in descriptor */
+ utf_ptr = m->descriptor->text;
+ while (utf_nextu2(&utf_ptr) != ')');
+
+ /* create remarks */
+ fprintf (file,"/*\n * Class: ");
+ utf_fprint (file, m->class->name);
+ fprintf (file,"\n * Method: ");
+ utf_fprint (file, m->name);
+ fprintf (file,"\n * Signature: ");
+ utf_fprint (file, m->descriptor);
+ fprintf (file,"\n */\n");
+
+ /* create prototype */
+ fprintf (file,"JNIEXPORT ");
+ printtype (utf_ptr);
+ fprintf (file," JNICALL Java_");
+ printID (m->class->name);
+
+ /* rename overloaded method */
+ if (ident_count = searchidentchain_utf(m->name))
+ fprintf(file,"%d",ident_count - 1);
+ chain_addlast(ident_chain,m->name);
+
fprintf (file,"_");
printID (m->name);
- fprintf (file," (");
-
- d = m->descriptor->text+1;
+ fprintf (file," (JNIEnv *env ");
+
+ utf_ptr = m->descriptor->text+1;
if (! (m->flags & ACC_STATIC) ) {
- fprintf (file, "struct ");
+
+ fprintf (file, ", struct ");
printID (m->class->name);
- fprintf (file, "* this");
- if ((*d)!=')') fprintf (file, ", ");
- }
+ fprintf (file, "* this ");
+
+ };
+
+ if ((*utf_ptr)!=')') fprintf (file, ", ");
- while ((*d)!=')') {
- d = printtype (d);
+ while ((*utf_ptr)!=')') {
+ utf_ptr = printtype (utf_ptr);
fprintf (file, " par%d", paramnum++);
- if ((*d)!=')') fprintf (file, ", ");
+ if ((*utf_ptr)!=')') fprintf (file, ", ");
}
fprintf (file, ");\n");
}
-static void headers_generate (classinfo *c)
+/****************** remove package-name in fully-qualified classname *********************/
+
+static void simple_classname(char *buffer, utf *u)
+{
+ u2 i, simplename_start;
+
+ for (i=utf_strlen(u); i>0; i--) {
+
+ if (u->text[i] == '$') u->text[i] = '_'; else /* convert '$' to '_' */
+ if (u->text[i] == '/') {
+ /* beginning of simple name */
+ simplename_start = i+1;
+ break;
+ }
+ }
+
+ for (i=simplename_start; i < utf_strlen(u); i++)
+ buffer[i-simplename_start] = u->text[i];
+
+ buffer[i-simplename_start] = '\0';
+}
+
+/*********** create headerfile for classes and store native methods in chain ************/
+
+static void headerfile_generate (classinfo *c)
{
+ char header_filename[1024] = "";
+ char classname[1024];
+ u2 i;
+ methodinfo *m;
+
+ /* store class in chain */
+ chain_addlast (nativeclass_chain, c);
+
+ /* open headerfile for class */
+ simple_classname(classname,c->name);
+
+ /* create chain for renaming fields */
+ ident_chain = chain_new ();
+
+ sprintf(header_filename, "nat/%s.h", classname);
+ file = fopen (header_filename, "w");
+ if (!file) panic ("Can not open file to store header information");
+ fprintf (file, "/* This file is machine generated, don't edit it !*/\n\n");
+
+ /* create structure for direct access to objects */
fprintf (file, "/* Structure information for class: ");
- unicode_fprint (file, c->name);
+ utf_fprint (file, c->name);
fprintf (file, " */\n\n");
-
fprintf (file, "typedef struct ");
- printID (c->name);
+ printID (c->name);
fprintf (file, " {\n");
-
outputsize=0;
dopadding=true;
- printfields (c);
-
+ printfields (c);
fprintf (file, "} ");
printID (c->name);
- fprintf (file, ";\n\n");
+ fprintf (file, ";\n\n");
- remembermethods (c);
-
+ /* create chain for renaming overloaded methods */
+ chain_free(ident_chain);
+ ident_chain = chain_new ();
+
+ /* create method-prototypes */
+
+ for (i=0; i<c->methodscount; i++) {
+
+ m = &(c->methods[i]);
- fprintf (file, "\n\n");
+ if (m->flags & ACC_NATIVE) {
+ chain_addlast (nativemethod_chain, m);
+ printmethod(m);
+ }
+ }
+
+
+ chain_free(ident_chain);
+ fclose(file);
}
+/******** print classname, '$' used to seperate inner-class name ***********/
+void print_classname (classinfo *clazz)
+{
+ utf *u = clazz->name;
+ char *endpos = u->text + u->blength;
+ char *utf_ptr = u->text;
+ u2 c;
+
+ while (utf_ptr<endpos) {
+ if ((c=utf_nextu2(&utf_ptr)) == '_')
+ putc ('$',file);
+ else
+ putc (c,file);
+ }
+}
+
+
+/*************** create table for locating native functions ****************/
static void printnativetableentry (methodinfo *m)
{
fprintf (file, " { \"");
- unicode_fprint (file, m->class->name);
+ print_classname(m->class);
fprintf (file, "\",\n \"");
- unicode_fprint (file, m->name);
+ utf_fprint (file, m->name);
fprintf (file, "\",\n \"");
- unicode_fprint (file, m->descriptor);
+ utf_fprint (file, m->descriptor);
fprintf (file, "\",\n ");
if ( (m->flags & ACC_STATIC) !=0) fprintf (file, "true");
else fprintf (file, "false");
fprintf (file, ",\n ");
- fprintf (file, "(functionptr) ");
+ fprintf (file, "(functionptr) Java_");
printID (m->class->name);
fprintf (file,"_");
printID (m->name);
}
+/***************************************************************************
+ create the nativetypes-headerfile which includes
+ the headerfiles of the classes stored in the classes-chain
+****************************************************************************/
-static void headers_start ()
+static void headers_finish ()
{
+ methodinfo *m;
+ classinfo *c;
+ char classname[1024];
+
file = fopen ("nativetypes.hh", "w");
if (!file) panic ("Can not open file 'native.h' to store header information");
fprintf (file, "/* Headerfile for native methods: nativetypes.hh */\n");
- fprintf (file, "/* This file is machine generated, don't edit it !*/\n\n");
-
- nativechain = chain_new ();
-}
-
-
-static void headers_finish ()
-{
- methodinfo *m;
-
- fprintf (file, "\n/* Prototypes for native methods */\n\n");
+ fprintf (file, "/* This file is machine generated, don't edit it !*/\n\n");
+ fprintf (file, "\n/* include native-Headerfiles */\n\n");
+
+ c = chain_first (nativeclass_chain);
+ while (c) {
- m = chain_first (nativechain);
- while (m) {
- dopadding=false;
- printmethod (m);
-
- m = chain_next (nativechain);
- }
+ dopadding=false;
+ simple_classname(classname,c->name);
+ fprintf(file,"#include \"nat/%s.h\"\n",classname);
+ c = chain_next (nativeclass_chain);
+ }
+ fclose(file);
+ chain_free (nativeclass_chain);
+
+ /* create table of native-methods */
file = fopen ("nativetable.hh", "w");
if (!file) panic ("Can not open file 'nativetable' to store native-link-table");
fprintf (file, "/* Table of native methods: nativetables.hh */\n");
fprintf (file, "/* This file is machine generated, don't edit it !*/\n\n");
- while ( (m = chain_first (nativechain)) != NULL) {
- chain_remove (nativechain);
-
+ while ( (m = chain_first (nativemethod_chain)) != NULL) {
+ chain_remove (nativemethod_chain);
printnativetableentry (m);
+ }
- }
-
- chain_free (nativechain);
+ chain_free (nativemethod_chain);
fclose (file);
-}
-
-
+}
/******************** interne Funktion: print_usage ************************
-
/************************** Funktion: main *******************************
Das Hauptprogramm.
/********** interne (nur fuer main relevante Optionen) **************/
char classpath[500] = "";
+ char offsets_filename[1024] = ""; /* phil */
u4 heapsize = 100000;
/*********** Optionen, damit wirklich nur headers generiert werden ***/
/**************************** Programmstart *****************************/
log_init (NULL);
- log_text ("Java - header-generator started");
+ log_text ("Java - header-generator started");
- file = fopen("sysdep/offsets.h", "w");
- if (file == NULL)
- panic ("Can not open file 'sysdep/offsets.h' for write");
+ sprintf(offsets_filename, "%s/offsets.h", SYSDEP_DIR); /* phil */
+ file = fopen(offsets_filename, "w");
+ if (file == NULL) {
+ fprintf (stderr, "Can not open file '%s' for write", offsets_filename);
+ exit(-1);
+ }
fprintf (file, "/* This file is machine generated, don't edit it !*/\n\n");
fprintf (file, "#define offdiffval %3d\n", (int) OFFSET(vftbl, diffval));
fclose (file);
-
+
suck_init (classpath);
-
- unicode_init ();
+
+ tables_init ();
heap_init (heapsize, heapsize, &dummy);
loader_init ();
/*********************** JAVA-Klassen laden ***************************/
-
- headers_start ();
-
+
+ nativemethod_chain = chain_new ();
+ nativeclass_chain = chain_new ();
for (a=1; a<argc; a++) {
- cp = argv[a];
- for (i=strlen(cp)-1; i>=0; i--) { /* Punkte im Klassennamen */
- if (cp[i]=='.') cp[i]='/'; /* auf slashes umbauen */
+
+ cp = argv[a];
+
+ /* convert classname */
+ for (i=strlen(cp)-1; i>=0; i--)
+ switch (cp[i]) {
+ case '.': cp[i]='/';
+ break;
+ case '_': cp[i]='$';
}
-
- topclass = loader_load ( unicode_new_char (cp) );
-
- headers_generate (topclass);
- }
+ topclass = loader_load ( utf_new_char (cp) );
+
+ headerfile_generate (topclass);
+ }
headers_finish ();
-
/************************ Freigeben aller Resourcen *******************/
loader_close ();
heap_close ();
- unicode_close (NULL);
+ tables_close ( literalstring_free );
/* Endemeldung ausgeben und mit entsprechendem exit-Status terminieren */
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