1 /* src/vmcore/method.h - method functions header
3 Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 $Id: method.h 8063 2007-06-11 14:44:58Z twisti $
32 /* forward typedefs ***********************************************************/
34 typedef struct methodinfo methodinfo;
35 typedef struct raw_exception_entry raw_exception_entry;
36 typedef struct lineinfo lineinfo;
37 typedef struct method_assumption method_assumption;
38 typedef struct method_worklist method_worklist;
39 typedef struct codeinfo codeinfo;
44 #include "vm/global.h"
46 #include "vmcore/descriptor.h"
47 #include "vmcore/references.h"
48 #include "vmcore/linker.h"
50 #if defined(ENABLE_JAVASE)
51 # include "vmcore/stackmap.h"
54 #include "vmcore/utf8.h"
57 #if defined(ENABLE_REPLACEMENT)
58 /* Initial value for the hit countdown field of each method. */
59 #define METHOD_INITIAL_HIT_COUNTDOWN 1000
63 /* methodinfo *****************************************************************/
65 struct methodinfo { /* method structure */
66 java_objectheader header; /* we need this in jit's monitorenter */
67 s4 flags; /* ACC flags */
68 utf *name; /* name of method */
69 utf *descriptor; /* JavaVM descriptor string of method */
70 #if defined(ENABLE_JAVASE)
71 utf *signature; /* Signature attribute */
72 stack_map_t *stack_map; /* StackMapTable attribute */
75 methoddesc *parseddesc; /* parsed descriptor */
77 classinfo *class; /* class, the method belongs to */
78 s4 vftblindex; /* index of method in virtual function */
79 /* table (if it is a virtual method) */
80 s4 maxstack; /* maximum stack depth of method */
81 s4 maxlocals; /* maximum number of local variables */
82 s4 jcodelength; /* length of JavaVM code */
83 u1 *jcode; /* pointer to JavaVM code */
85 s4 rawexceptiontablelength; /* exceptiontable length */
86 raw_exception_entry *rawexceptiontable; /* the exceptiontable */
88 u2 thrownexceptionscount; /* number of exceptions attribute */
89 classref_or_classinfo *thrownexceptions; /* except. a method may throw */
91 u2 linenumbercount; /* number of linenumber attributes */
92 lineinfo *linenumbers; /* array of lineinfo items */
94 u1 *stubroutine; /* stub for compiling or calling natives */
95 codeinfo *code; /* current code of this method */
97 #if defined(ENABLE_LSRA)
98 s4 maxlifetimes; /* helper for lsra */
101 methodinfo *overwrites; /* method that is directly overwritten */
102 method_assumption *assumptions; /* list of assumptions about this method */
104 #if defined(ENABLE_REPLACEMENT)
105 s4 hitcountdown; /* decreased for each hit */
108 #if defined(ENABLE_DEBUG_FILTER)
109 u1 filtermatches; /* flags indicating which filters the method matches */
114 /* method_assumption ***********************************************************
116 This struct is used for registering assumptions about methods.
118 *******************************************************************************/
120 struct method_assumption {
121 method_assumption *next;
126 /* method_worklist *************************************************************
128 List node used for method worklists.
130 *******************************************************************************/
132 struct method_worklist {
133 method_worklist *next;
138 /* raw_exception_entry ********************************************************/
140 /* exception table entry read by the loader */
142 struct raw_exception_entry { /* exceptiontable entry in a method */
143 classref_or_classinfo catchtype; /* catchtype of exc. (0 == catchall) */
144 u2 startpc; /* start pc of guarded area (inclusive) */
145 u2 endpc; /* end pc of guarded area (exklusive) */
146 u2 handlerpc; /* pc of exception handler */
150 /* lineinfo *******************************************************************/
158 /* function prototypes ********************************************************/
160 void method_free(methodinfo *m);
161 bool method_canoverwrite(methodinfo *m, methodinfo *old);
163 methodinfo *method_vftbl_lookup(vftbl_t *vftbl, methodinfo* m);
165 java_objectarray *method_get_parametertypearray(methodinfo *m);
166 java_objectarray *method_get_exceptionarray(methodinfo *m);
167 classinfo *method_returntype_get(methodinfo *m);
169 void method_add_assumption_monomorphic(methodinfo *m, methodinfo *caller);
170 void method_break_assumption_monomorphic(methodinfo *m, method_worklist **wl);
172 s4 method_count_implementations(methodinfo *m, classinfo *c, methodinfo **found);
175 void method_printflags(methodinfo *m);
176 void method_print(methodinfo *m);
177 void method_println(methodinfo *m);
178 void method_methodref_print(constant_FMIref *mr);
179 void method_methodref_println(constant_FMIref *mr);
182 #endif /* _METHOD_H */
186 * These are local overrides for various environment variables in Emacs.
187 * Please do not remove this and leave it at the end of the file, where
188 * Emacs will automagically detect them.
189 * ---------------------------------------------------------------------
192 * indent-tabs-mode: t
196 * vim:noexpandtab:sw=4:ts=4: