1 /* src/vm/method.hpp - method functions header
3 Copyright (C) 1996-2005, 2006, 2007, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
29 /* forward typedefs ***********************************************************/
31 typedef struct methodinfo methodinfo;
32 typedef struct raw_exception_entry raw_exception_entry;
33 typedef struct lineinfo lineinfo;
34 typedef struct method_assumption method_assumption;
35 typedef struct method_worklist method_worklist;
36 typedef struct codeinfo codeinfo;
41 #include "threads/mutex.hpp"
43 #include "vm/breakpoint.hpp"
44 #include "vm/jit/builtin.hpp"
45 #include "vm/descriptor.hpp"
46 #include "vm/global.h"
47 #include "vm/linker.hpp"
48 #include "vm/loader.hpp"
49 #include "vm/references.h"
51 #if defined(ENABLE_JAVASE)
52 # include "vm/stackmap.h"
58 #if defined(ENABLE_REPLACEMENT)
59 /* Initial value for the hit countdown field of each method. */
60 #define METHOD_INITIAL_HIT_COUNTDOWN 1000
63 /* methodinfo *****************************************************************/
65 struct methodinfo { /* method structure */
66 Mutex *mutex; /* we need this in jit's locking */
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 *clazz; /* 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 BreakpointTable* breakpoints; /* breakpoints in this method */
106 #if defined(ENABLE_REPLACEMENT)
107 s4 hitcountdown; /* decreased for each hit */
110 #if defined(ENABLE_DEBUG_FILTER)
111 u1 filtermatches; /* flags indicating which filters the method matches */
114 #if defined(ENABLE_ESCAPE)
119 /* method_assumption ***********************************************************
121 This struct is used for registering assumptions about methods.
123 *******************************************************************************/
125 struct method_assumption {
126 method_assumption *next;
131 /* method_worklist *************************************************************
133 List node used for method worklists.
135 *******************************************************************************/
137 struct method_worklist {
138 method_worklist *next;
143 /* raw_exception_entry ********************************************************/
145 /* exception table entry read by the loader */
147 struct raw_exception_entry { /* exceptiontable entry in a method */
148 classref_or_classinfo catchtype; /* catchtype of exc. (0 == catchall) */
149 u2 startpc; /* start pc of guarded area (inclusive) */
150 u2 endpc; /* end pc of guarded area (exklusive) */
151 u2 handlerpc; /* pc of exception handler */
155 /* lineinfo *******************************************************************/
163 /* global variables ***********************************************************/
165 extern methodinfo *method_java_lang_reflect_Method_invoke;
172 /* inline functions ***********************************************************/
174 inline static bool method_is_builtin(methodinfo* m)
176 return m->flags & ACC_METHOD_BUILTIN;
180 /* function prototypes ********************************************************/
182 void method_init(void);
184 bool method_load(classbuffer *cb, methodinfo *m, descriptor_pool *descpool);
185 void method_free(methodinfo *m);
186 bool method_canoverwrite(methodinfo *m, methodinfo *old);
188 methodinfo *method_new_builtin(builtintable_entry *bte);
190 methodinfo *method_vftbl_lookup(vftbl_t *vftbl, methodinfo* m);
192 int32_t method_get_parametercount(methodinfo *m);
193 java_handle_objectarray_t *method_get_parametertypearray(methodinfo *m);
194 java_handle_objectarray_t *method_get_exceptionarray(methodinfo *m);
195 classinfo *method_returntype_get(methodinfo *m);
197 void method_add_assumption_monomorphic(methodinfo *m, methodinfo *caller);
198 void method_break_assumption_monomorphic(methodinfo *m, method_worklist **wl);
200 s4 method_count_implementations(methodinfo *m, classinfo *c, methodinfo **found);
202 java_handle_bytearray_t *method_get_annotations(methodinfo *m);
203 java_handle_bytearray_t *method_get_parameterannotations(methodinfo *m);
204 java_handle_bytearray_t *method_get_annotationdefault(methodinfo *m);
207 void method_printflags(methodinfo *m);
208 void method_print(methodinfo *m);
209 void method_println(methodinfo *m);
210 void method_methodref_print(constant_FMIref *mr);
211 void method_methodref_println(constant_FMIref *mr);
218 #endif /* _METHOD_H */
222 * These are local overrides for various environment variables in Emacs.
223 * Please do not remove this and leave it at the end of the file, where
224 * Emacs will automagically detect them.
225 * ---------------------------------------------------------------------
228 * indent-tabs-mode: t
232 * vim:noexpandtab:sw=4:ts=4: