-/******************************* loader.h **************************************
+/* src/vm/loader.h - class loader header
- Copyright (c) 1997 A. Krall, R. Grafl, M. Gschwind, M. Probst
+ 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
- See file COPYRIGHT for information on usage and disclaimer of warranties
+ This file is part of CACAO.
- Contains the prototypes for the class loader.
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
- Author: Reinhard Grafl EMAIL: cacao@complang.tuwien.ac.at
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
- Last Change: 1997/11/14
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA.
+
+ Contact: cacao@complang.tuwien.ac.at
+
+ Authors: Reinhard Grafl
+
+ $Id: loader.h 2199 2005-04-03 21:42:44Z twisti $
+*/
+
+
+#ifndef _LOADER_H
+#define _LOADER_H
+
+#include <stdio.h>
+
+
+/* forward typedefs ***********************************************************/
+
+typedef struct classbuffer classbuffer;
+typedef struct classpath_info classpath_info;
+
+
+#include "vm/global.h"
+#include "vm/utf8.h"
+#include "vm/references.h"
+#include "vm/descriptor.h"
+#include "vm/method.h"
+
+#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 { /* 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 */
+};
-/************************* program switches ***********************************/
-extern bool loadverbose; /* Print debug messages during loading */
-extern bool linkverbose;
-extern bool initverbose; /* Log class initialization */
-extern bool makeinitializations; /* Initialize classes automatically */
+/* classpath_info *************************************************************/
-extern bool getloadingtime;
-extern long int loadingtime; /* CPU time for class loading */
+#define CLASSPATH_PATH 0
+#define CLASSPATH_ARCHIVE 1
-extern list linkedclasses; /* List containing all linked classes */
+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;
+};
-/************************ prototypes ******************************************/
+/* export variables ***********************************************************/
-/* initialize laoder, load important systemclasses */
-void loader_init ();
+#if defined(USE_THREADS)
+extern int blockInts;
+#endif
+
+extern classpath_info *classpath_entries;
+
+
+/* function prototypes ********************************************************/
+
+/* 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);
+
+inline u1 suck_u1(classbuffer *cb);
+inline u2 suck_u2(classbuffer *cb);
+inline u4 suck_u4(classbuffer *cb);
-/* load a class and all referenced classes */
-classinfo *loader_load (utf *topname);
+/* free resources */
+void loader_close(void);
-/* initializes all loaded classes */
-void loader_initclasses ();
+/* class loading functions */
+bool load_class_from_sysloader(utf *name, classinfo **result);
+bool load_class_from_classloader(utf *name, java_objectheader *cl, classinfo **result);
+bool load_class_bootstrap(utf *name,classinfo **result);
+/* (don't use the following directly:) */
+classinfo *load_class_from_classbuffer(classbuffer *cb);
+bool load_newly_created_array(classinfo *c,java_objectheader *loader);
-void loader_compute_subclasses ();
/* retrieve constantpool element */
-voidptr class_getconstant (classinfo *class, u4 pos, u4 ctype);
+voidptr class_getconstant(classinfo *class, u4 pos, u4 ctype);
/* determine type of a constantpool element */
-u4 class_constanttype (classinfo *class, u4 pos);
+u4 class_constanttype(classinfo *class, u4 pos);
/* search class for a field */
-fieldinfo *class_findfield (classinfo *c, utf *name, utf *desc);
+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_resolvemethod (classinfo *c, utf *name, utf *dest);
+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);
-methodinfo *class_resolvemethod_approx (classinfo *c, utf *name, utf *dest);
-
-bool class_issubclass (classinfo *sub, classinfo *super);
+methodinfo *class_findmethod_approx(classinfo *c, utf *name, utf *desc);
+methodinfo *class_resolvemethod_approx(classinfo *c, utf *name, utf *dest);
-/* call initializer of class */
-void class_init (classinfo *c);
+bool class_issubclass(classinfo *sub, classinfo *super);
/* debug purposes */
-void class_showmethods (classinfo *c);
-void class_showconstantpool (classinfo *c);
+void class_showmethods(classinfo *c);
+void class_showconstantpool(classinfo *c);
-/* 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);
-/* create class representing specific arraytype */
-classinfo *create_array_class(utf *u);
-/* create the arraydescriptor for the arraytype specified by the utf-string */
-constant_arraydescriptor * buildarraydescriptor(char *utf, u4 namelen);
+/* debug helpers */
+void fprintflags(FILE *fp, u2 f);
+void printflags(u2 f);
+#endif /* _LOADER_H */
+/*
+ * These are local overrides for various environment variables in Emacs.
+ * Please do not remove this and leave it at the end of the file, where
+ * Emacs will automagically detect them.
+ * ---------------------------------------------------------------------
+ * Local variables:
+ * mode: c
+ * indent-tabs-mode: t
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ */
projects / cacao.git / blobdiff