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/jit/builtin.hpp"
44 #include "vm/descriptor.hpp"
45 #include "vm/global.h"
46 #include "vm/linker.hpp"
47 #include "vm/loader.hpp"
48 #include "vm/references.h"
50 #if defined(ENABLE_JAVASE)
51 # include "vm/stackmap.h"
57 #if defined(ENABLE_REPLACEMENT)
58 /* Initial value for the hit countdown field of each method. */
59 #define METHOD_INITIAL_HIT_COUNTDOWN 1000
62 /* methodinfo *****************************************************************/
64 struct methodinfo { /* method structure */
65 Mutex *mutex; /* we need this in jit's locking */
66 s4 flags; /* ACC flags */
67 utf *name; /* name of method */
68 utf *descriptor; /* JavaVM descriptor string of method */
69 #if defined(ENABLE_JAVASE)
70 utf *signature; /* Signature attribute */
71 stack_map_t *stack_map; /* StackMapTable attribute */
74 methoddesc *parseddesc; /* parsed descriptor */
76 classinfo *clazz; /* class, the method belongs to */
77 s4 vftblindex; /* index of method in virtual function */
78 /* table (if it is a virtual method) */
79 s4 maxstack; /* maximum stack depth of method */
80 s4 maxlocals; /* maximum number of local variables */
81 s4 jcodelength; /* length of JavaVM code */
82 u1 *jcode; /* pointer to JavaVM code */
84 s4 rawexceptiontablelength; /* exceptiontable length */
85 raw_exception_entry *rawexceptiontable; /* the exceptiontable */
87 u2 thrownexceptionscount; /* number of exceptions attribute */
88 classref_or_classinfo *thrownexceptions; /* except. a method may throw */
90 u2 linenumbercount; /* number of linenumber attributes */
91 lineinfo *linenumbers; /* array of lineinfo items */
93 u1 *stubroutine; /* stub for compiling or calling natives */
94 codeinfo *code; /* current code of this method */
96 #if defined(ENABLE_LSRA)
97 s4 maxlifetimes; /* helper for lsra */
100 methodinfo *overwrites; /* method that is directly overwritten */
101 method_assumption *assumptions; /* list of assumptions about this method */
103 #if defined(ENABLE_REPLACEMENT)
104 s4 hitcountdown; /* decreased for each hit */
107 #if defined(ENABLE_DEBUG_FILTER)
108 u1 filtermatches; /* flags indicating which filters the method matches */
111 #if defined(ENABLE_ESCAPE)
116 /* method_assumption ***********************************************************
118 This struct is used for registering assumptions about methods.
120 *******************************************************************************/
122 struct method_assumption {
123 method_assumption *next;
128 /* method_worklist *************************************************************
130 List node used for method worklists.
132 *******************************************************************************/
134 struct method_worklist {
135 method_worklist *next;
140 /* raw_exception_entry ********************************************************/
142 /* exception table entry read by the loader */
144 struct raw_exception_entry { /* exceptiontable entry in a method */
145 classref_or_classinfo catchtype; /* catchtype of exc. (0 == catchall) */
146 u2 startpc; /* start pc of guarded area (inclusive) */
147 u2 endpc; /* end pc of guarded area (exklusive) */
148 u2 handlerpc; /* pc of exception handler */
152 /* lineinfo *******************************************************************/
160 /* global variables ***********************************************************/
162 extern methodinfo *method_java_lang_reflect_Method_invoke;
169 /* inline functions ***********************************************************/
171 inline static bool method_is_builtin(methodinfo* m)
173 return m->flags & ACC_METHOD_BUILTIN;
177 /* function prototypes ********************************************************/
179 void method_init(void);
181 bool method_load(classbuffer *cb, methodinfo *m, descriptor_pool *descpool);
182 void method_free(methodinfo *m);
183 bool method_canoverwrite(methodinfo *m, methodinfo *old);
185 methodinfo *method_new_builtin(builtintable_entry *bte);
187 methodinfo *method_vftbl_lookup(vftbl_t *vftbl, methodinfo* m);
189 int32_t method_get_parametercount(methodinfo *m);
190 java_handle_objectarray_t *method_get_parametertypearray(methodinfo *m);
191 java_handle_objectarray_t *method_get_exceptionarray(methodinfo *m);
192 classinfo *method_returntype_get(methodinfo *m);
194 void method_add_assumption_monomorphic(methodinfo *m, methodinfo *caller);
195 void method_break_assumption_monomorphic(methodinfo *m, method_worklist **wl);
197 s4 method_count_implementations(methodinfo *m, classinfo *c, methodinfo **found);
199 java_handle_bytearray_t *method_get_annotations(methodinfo *m);
200 java_handle_bytearray_t *method_get_parameterannotations(methodinfo *m);
201 java_handle_bytearray_t *method_get_annotationdefault(methodinfo *m);
204 void method_printflags(methodinfo *m);
205 void method_print(methodinfo *m);
206 void method_println(methodinfo *m);
207 void method_methodref_print(constant_FMIref *mr);
208 void method_methodref_println(constant_FMIref *mr);
215 #endif /* _METHOD_H */
219 * These are local overrides for various environment variables in Emacs.
220 * Please do not remove this and leave it at the end of the file, where
221 * Emacs will automagically detect them.
222 * ---------------------------------------------------------------------
225 * indent-tabs-mode: t
229 * vim:noexpandtab:sw=4:ts=4: