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 localvarinfo localvarinfo;
35 typedef struct method_assumption method_assumption;
36 typedef struct method_worklist method_worklist;
37 typedef struct codeinfo codeinfo;
42 #include "threads/mutex.hpp"
44 #include "vm/breakpoint.hpp"
45 #include "vm/jit/builtin.hpp"
46 #include "vm/descriptor.hpp"
47 #include "vm/global.h"
48 #include "vm/linker.hpp"
49 #include "vm/loader.hpp"
50 #include "vm/references.h"
52 #if defined(ENABLE_JAVASE)
53 # include "vm/stackmap.h"
59 #if defined(ENABLE_REPLACEMENT)
60 /* Initial value for the hit countdown field of each method. */
61 #define METHOD_INITIAL_HIT_COUNTDOWN 1000
64 /* methodinfo *****************************************************************/
66 struct methodinfo { /* method structure */
67 Mutex *mutex; /* we need this in jit's locking */
68 s4 flags; /* ACC flags */
69 utf *name; /* name of method */
70 utf *descriptor; /* JavaVM descriptor string of method */
71 #if defined(ENABLE_JAVASE)
72 utf *signature; /* Signature attribute */
73 stack_map_t *stack_map; /* StackMapTable attribute */
76 methoddesc *parseddesc; /* parsed descriptor */
78 classinfo *clazz; /* class, the method belongs to */
79 s4 vftblindex; /* index of method in virtual function */
80 /* table (if it is a virtual method) */
81 s4 maxstack; /* maximum stack depth of method */
82 s4 maxlocals; /* maximum number of local variables */
83 s4 jcodelength; /* length of JavaVM code */
84 u1 *jcode; /* pointer to JavaVM code */
86 s4 rawexceptiontablelength; /* exceptiontable length */
87 raw_exception_entry *rawexceptiontable; /* the exceptiontable */
89 u2 thrownexceptionscount; /* number of exceptions attribute */
90 classref_or_classinfo *thrownexceptions; /* except. a method may throw */
92 u2 linenumbercount; /* number of linenumber attributes */
93 lineinfo *linenumbers; /* array of lineinfo items */
95 #if defined(ENABLE_JAVASE) && defined(ENABLE_JVMTI)
96 uint16_t localvarcount; /* number of local variable attributes */
97 localvarinfo* localvars; /* array of localvarinfo items */
100 u1 *stubroutine; /* stub for compiling or calling natives */
101 codeinfo *code; /* current code of this method */
103 #if defined(ENABLE_LSRA)
104 s4 maxlifetimes; /* helper for lsra */
107 methodinfo *overwrites; /* method that is directly overwritten */
108 method_assumption *assumptions; /* list of assumptions about this method */
110 BreakpointTable* breakpoints; /* breakpoints in this method */
112 #if defined(ENABLE_REPLACEMENT)
113 s4 hitcountdown; /* decreased for each hit */
116 #if defined(ENABLE_DEBUG_FILTER)
117 u1 filtermatches; /* flags indicating which filters the method matches */
120 #if defined(ENABLE_ESCAPE)
125 /* method_assumption ***********************************************************
127 This struct is used for registering assumptions about methods.
129 *******************************************************************************/
131 struct method_assumption {
132 method_assumption *next;
137 /* method_worklist *************************************************************
139 List node used for method worklists.
141 *******************************************************************************/
143 struct method_worklist {
144 method_worklist *next;
149 /* raw_exception_entry ********************************************************/
151 /* exception table entry read by the loader */
153 struct raw_exception_entry { /* exceptiontable entry in a method */
154 classref_or_classinfo catchtype; /* catchtype of exc. (0 == catchall) */
155 u2 startpc; /* start pc of guarded area (inclusive) */
156 u2 endpc; /* end pc of guarded area (exklusive) */
157 u2 handlerpc; /* pc of exception handler */
161 /* lineinfo *******************************************************************/
169 /* localvarinfo ***************************************************************/
171 struct localvarinfo {
180 /* global variables ***********************************************************/
182 extern methodinfo *method_java_lang_reflect_Method_invoke;
189 /* inline functions ***********************************************************/
191 inline static bool method_is_builtin(methodinfo* m)
193 return m->flags & ACC_METHOD_BUILTIN;
197 /* function prototypes ********************************************************/
199 void method_init(void);
201 bool method_load(classbuffer *cb, methodinfo *m, descriptor_pool *descpool);
202 void method_free(methodinfo *m);
203 bool method_canoverwrite(methodinfo *m, methodinfo *old);
205 methodinfo *method_new_builtin(builtintable_entry *bte);
207 methodinfo *method_vftbl_lookup(vftbl_t *vftbl, methodinfo* m);
209 int32_t method_get_parametercount(methodinfo *m);
210 java_handle_objectarray_t *method_get_parametertypearray(methodinfo *m);
211 java_handle_objectarray_t *method_get_exceptionarray(methodinfo *m);
212 classinfo *method_returntype_get(methodinfo *m);
214 void method_add_assumption_monomorphic(methodinfo *m, methodinfo *caller);
215 void method_break_assumption_monomorphic(methodinfo *m, method_worklist **wl);
217 s4 method_count_implementations(methodinfo *m, classinfo *c, methodinfo **found);
219 java_handle_bytearray_t *method_get_annotations(methodinfo *m);
220 java_handle_bytearray_t *method_get_parameterannotations(methodinfo *m);
221 java_handle_bytearray_t *method_get_annotationdefault(methodinfo *m);
224 void method_printflags(methodinfo *m);
225 void method_print(methodinfo *m);
226 void method_println(methodinfo *m);
227 void method_methodref_print(constant_FMIref *mr);
228 void method_methodref_println(constant_FMIref *mr);
235 #endif /* _METHOD_H */
239 * These are local overrides for various environment variables in Emacs.
240 * Please do not remove this and leave it at the end of the file, where
241 * Emacs will automagically detect them.
242 * ---------------------------------------------------------------------
245 * indent-tabs-mode: t
249 * vim:noexpandtab:sw=4:ts=4: