-/* loader.h - class loader header
+/* src/vm/loader.h - class loader header
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
- M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
- P. Tomsich, J. Wenninger
+ 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,
+ Institut f. Computersprachen - TU Wien
This file is part of CACAO.
Authors: Reinhard Grafl
- $Id: loader.h 705 2003-12-07 17:26:52Z twisti $
+ $Id: loader.h 2154 2005-03-30 20:03:06Z twisti $
*/
#include <stdio.h>
-/************************* program switches ***********************************/
+/* forward typedefs ***********************************************************/
-extern bool loadverbose; /* Print debug messages during loading */
-extern bool linkverbose;
-extern bool initverbose; /* Log class initialization */
-extern bool makeinitializations; /* Initialize classes automatically */
+typedef struct classbuffer classbuffer;
+typedef struct classpath_info classpath_info;
-extern bool getloadingtime;
-extern long int loadingtime; /* CPU time for class loading */
-extern list unlinkedclasses; /* List containing all unlinked classes */
-extern list linkedclasses; /* List containing all linked classes */
+#include "config.h"
+#include "types.h"
+#include "vm/class.h"
+#include "vm/descriptor.h"
+#include "vm/global.h"
+#include "vm/method.h"
+#include "vm/utf8.h"
-#ifdef USE_THREADS
+#if defined(USE_ZLIB)
+# include "vm/unzip.h"
+#endif
+
+
+/* signed suck defines ********************************************************/
+
+#define suck_s8(a) (s8) suck_u8((a))
+#define suck_s2(a) (s2) suck_u2((a))
+#define suck_s4(a) (s4) suck_u4((a))
+#define suck_s1(a) (s1) suck_u1((a))
+
+
+/* constant pool entries *******************************************************
+
+ All constant pool entries need a data structure which contain the entrys
+ value. In some cases this structure exist already, in the remaining cases
+ this structure must be generated:
+
+ kind structure generated?
+ ----------------------------------------------------------------------
+ CONSTANT_Class classinfo no XXX this will change
+ CONSTANT_Fieldref constant_FMIref yes
+ CONSTANT_Methodref constant_FMIref yes
+ CONSTANT_InterfaceMethodref constant_FMIref yes
+ CONSTANT_String unicode no
+ CONSTANT_Integer constant_integer yes
+ CONSTANT_Float constant_float yes
+ CONSTANT_Long constant_long yes
+ CONSTANT_Double constant_double yes
+ CONSTANT_NameAndType constant_nameandtype yes
+ CONSTANT_Utf8 unicode no
+ CONSTANT_UNUSED -
+
+*******************************************************************************/
+
+typedef struct { /* Fieldref, Methodref and InterfaceMethodref */
+ classinfo *class; /* class containing this field/method/intfmeth. */ /* XXX remove */
+ constant_classref *classref; /* class containing this field/meth./intfm. */
+ utf *name; /* field/method/interfacemethod name */
+ utf *descriptor; /* field/method/intfmeth. type descriptor string */
+ parseddesc parseddesc; /* parsed descriptor */
+} constant_FMIref;
+
+
+typedef struct { /* Integer */
+ s4 value;
+} constant_integer;
+
+
+typedef struct { /* Float */
+ float value;
+} constant_float;
+
+
+typedef struct { /* Long */
+ s8 value;
+} constant_long;
+
+
+typedef struct { /* Double */
+ double value;
+} constant_double;
+
+
+typedef struct { /* NameAndType (Field or Method) */
+ utf *name; /* field/method name */
+ utf *descriptor; /* field/method type descriptor string */
+} constant_nameandtype;
+
+
+/* classbuffer ****************************************************************/
+
+struct classbuffer {
+ classinfo *class; /* pointer to classinfo structure */
+ u1 *data; /* pointer to byte code */
+ s4 size; /* size of the byte code */
+ u1 *pos; /* current read position */
+};
+
+
+/* classpath_info *************************************************************/
+
+#define CLASSPATH_PATH 0
+#define CLASSPATH_ARCHIVE 1
+
+struct classpath_info {
+#if defined(USE_THREADS)
+ /* Required for monitor locking on zip/jar files. */
+ java_objectheader header;
+#endif
+ s4 type;
+ char *path;
+ s4 pathlen;
+#if defined(USE_ZLIB)
+ unzFile uf;
+#endif
+ classpath_info *next;
+};
+
+
+/* export variables ***********************************************************/
+
+#if defined(USE_THREADS)
extern int blockInts;
#endif
+extern classpath_info *classpath_entries;
+
-/************************ prototypes ******************************************/
+/* function prototypes ********************************************************/
-/* initialize laoder, load important systemclasses */
-void loader_init();
+/* initialize loader, load important systemclasses */
+bool loader_init(u1 *stackbottom);
void suck_init(char *cpath);
+void create_all_classes(void);
+void suck_stop(classbuffer *cb);
-/* free resources */
-void loader_close();
+inline bool check_classbuffer_size(classbuffer *cb, s4 len);
-/* load a class and all referenced classes */
-classinfo *loader_load(utf *topname);
+inline u1 suck_u1(classbuffer *cb);
+inline u2 suck_u2(classbuffer *cb);
+inline u4 suck_u4(classbuffer *cb);
-/* initializes all loaded classes */
-void loader_initclasses();
+/* free resources */
+void loader_close(void);
+
+/* class loading functions */
+classinfo *load_class_from_classloader(classinfo *c, java_objectheader *cl);
+classinfo *load_class_bootstrap(classinfo *c);
+classinfo *load_class_from_classbuffer(classbuffer *cb);
-void loader_compute_subclasses();
/* retrieve constantpool element */
voidptr class_getconstant(classinfo *class, u4 pos, u4 ctype);
/* determine type of a constantpool element */
u4 class_constanttype(classinfo *class, u4 pos);
-s4 class_findmethodIndex(classinfo *c, utf *name, utf *desc);
-
/* search class for a field */
fieldinfo *class_findfield(classinfo *c, utf *name, utf *desc);
+fieldinfo *class_resolvefield(classinfo *c, utf *name, utf *desc, classinfo *referer, bool except);
/* search for a method with a specified name and descriptor */
methodinfo *class_findmethod(classinfo *c, utf *name, utf *desc);
+methodinfo *class_fetchmethod(classinfo *c, utf *name, utf *desc);
methodinfo *class_resolvemethod(classinfo *c, utf *name, utf *dest);
+methodinfo *class_resolveclassmethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool except);
+methodinfo *class_resolveinterfacemethod(classinfo *c, utf *name, utf *dest, classinfo *referer, bool except);
/* search for a method with specified name and arguments (returntype ignored) */
methodinfo *class_findmethod_approx(classinfo *c, utf *name, utf *desc);
bool class_issubclass(classinfo *sub, classinfo *super);
/* call initializer of class */
-void class_init(classinfo *c);
-
-void class_showconstanti(classinfo *c, int ii);
+classinfo *class_init(classinfo *c);
/* debug purposes */
void class_showmethods(classinfo *c);
void class_showconstantpool(classinfo *c);
void print_arraydescriptor(FILE *file, arraydescriptor *desc);
-classinfo *loader_load(utf *topname);
-
-/* set buffer for reading classdata */
-void classload_buffer(u1 *buf, int len);
-
/* return the primitive class inidicated by the given signature character */
classinfo *class_primitive_from_sig(char sig);
/* return the class indicated by the given descriptor */
-#define CLASSLOAD_SKIP 0
-#define CLASSLOAD_NEW 1
-#define CLASSLOAD_LOAD 2
-
-#if 0
-#define CLASSLOAD_NEW 0x0000 /* default */
-#define CLASSLOAD_LOAD 0x0001
-#define CLASSLOAD_SKIP 0x0002
-#define CLASSLOAD_PANIC 0x0000 /* default */
-#define CLASSLOAD_NOPANIC 0x0010
-#define CLASSLOAD_PRIMITIVE 0x0000 /* default */
-#define CLASSLOAD_VOID 0x0000 /* default */
-#define CLASSLOAD_NOVOID 0x0020
-#endif
+/* (see loader.c for documentation) */
+#define CLASSLOAD_NEW 0 /* default */
+#define CLASSLOAD_LOAD 0x0001
+#define CLASSLOAD_SKIP 0x0002
+#define CLASSLOAD_PANIC 0 /* default */
+#define CLASSLOAD_NOPANIC 0x0010
+#define CLASSLOAD_PRIMITIVE 0 /* default */
+#define CLASSLOAD_NULLPRIMITIVE 0x0020
+#define CLASSLOAD_VOID 0 /* default */
+#define CLASSLOAD_NOVOID 0x0040
+#define CLASSLOAD_NOCHECKEND 0 /* default */
+#define CLASSLOAD_CHECKEND 0x1000
classinfo *class_from_descriptor(char *utf_ptr,char *end_ptr,char **next,int mode);
+int type_from_descriptor(classinfo **cls,char *utf_ptr,char *end_ptr,char **next,int mode);
/* (used by class_new, don't use directly) */
void class_new_array(classinfo *c);
-void class_link(classinfo *c);
-
-void field_display(fieldinfo *f);
-
-void method_display(methodinfo *m);
-
-utf* clinit_desc();
-utf* clinit_name();
-
#endif /* _LOADER_H */
projects / cacao.git / blobdiff