1 /* src/vm/jit/code.h - codeinfo struct for representing compiled code
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
37 #include "toolbox/list.h"
39 #include "vm/global.h"
41 #include "vm/jit/exceptiontable.h"
42 #include "vm/jit/linenumbertable.h"
43 #include "vm/jit/replace.h"
45 #include "vmcore/method.h"
48 /* constants ******************************************************************/
50 #define CODE_FLAG_INVALID 0x0001
51 #define CODE_FLAG_LEAFMETHOD 0x0002
52 #define CODE_FLAG_SYNCHRONIZED 0x0004
55 /* codeinfo *******************************************************************
57 A codeinfo represents a particular realization of a method in
60 ATTENTION: The methodinfo entry in the code-structure MUST have the
61 offset 0, otherwise we have a problem in our compiler stub. This is
62 checked with an assert in code_init().
64 *******************************************************************************/
67 methodinfo *m; /* method this is a realization of */
68 codeinfo *prev; /* previous codeinfo of this method */
70 uint32_t flags; /* OR of CODE_FLAG_ constants */
72 u1 optlevel; /* optimization level of this code */
73 s4 basicblockcount; /* number of basic blocks */
75 int32_t synchronizedoffset; /* stack offset of synchronized obj. */
78 u1 *mcode; /* pointer to machine code */
79 u1 *entrypoint; /* machine code entry point */
80 s4 mcodelength; /* length of generated machine code */
82 exceptiontable_t *exceptiontable;
83 linenumbertable_t *linenumbertable;
89 #if defined(ENABLE_REPLACEMENT)
90 rplpoint *rplpoints; /* replacement points */
91 rplalloc *regalloc; /* register allocation info */
92 s4 rplpointcount; /* number of replacement points */
93 s4 globalcount; /* number of global allocations */
94 s4 regalloccount; /* number of total allocations */
95 s4 memuse; /* number of arg + local slots */
96 s4 stackframesize; /* size of the stackframe in slots */
97 u1 savedintcount; /* number of callee saved int regs */
98 u1 savedfltcount; /* number of callee saved flt regs */
99 # if defined(HAS_ADDRESS_REGISTER_FILE)
100 u1 savedadrcount; /* number of callee saved adr regs */
102 u1 *savedmcode; /* saved code under patches */
105 #if defined(ENABLE_PROFILING)
106 u4 frequency; /* number of method invocations */
108 s8 cycles; /* number of cpu cycles */
113 /* inline functions ***********************************************************/
115 /* code_xxx_invalid ************************************************************
117 Functions for CODE_FLAG_INVALID.
119 *******************************************************************************/
121 inline static int code_is_invalid(codeinfo *code)
123 return (code->flags & CODE_FLAG_INVALID);
126 inline static void code_flag_invalid(codeinfo *code)
128 code->flags |= CODE_FLAG_INVALID;
131 inline static void code_unflag_invalid(codeinfo *code)
133 code->flags &= ~CODE_FLAG_INVALID;
137 /* code_xxx_leafmethod *********************************************************
139 Functions for CODE_FLAG_LEAFMETHOD.
141 *******************************************************************************/
143 inline static int code_is_leafmethod(codeinfo *code)
145 return (code->flags & CODE_FLAG_LEAFMETHOD);
148 inline static void code_flag_leafmethod(codeinfo *code)
150 code->flags |= CODE_FLAG_LEAFMETHOD;
153 inline static void code_unflag_leafmethod(codeinfo *code)
155 code->flags &= ~CODE_FLAG_LEAFMETHOD;
159 /* code_xxx_synchronized *******************************************************
161 Functions for CODE_FLAG_SYNCHRONIZED.
163 *******************************************************************************/
165 inline static int code_is_synchronized(codeinfo *code)
167 return (code->flags & CODE_FLAG_SYNCHRONIZED);
170 inline static void code_flag_synchronized(codeinfo *code)
172 code->flags |= CODE_FLAG_SYNCHRONIZED;
175 inline static void code_unflag_synchronized(codeinfo *code)
177 code->flags &= ~CODE_FLAG_SYNCHRONIZED;
181 /* function prototypes ********************************************************/
183 bool code_init(void);
185 codeinfo *code_codeinfo_new(methodinfo *m);
186 void code_codeinfo_free(codeinfo *code);
188 codeinfo *code_find_codeinfo_for_pc(u1 *pc);
189 codeinfo *code_find_codeinfo_for_pc_nocheck(u1 *pc);
191 codeinfo *code_get_codeinfo_for_pv(u1 *pv);
192 methodinfo *code_get_methodinfo_for_pv(u1 *pv);
194 #if defined(ENABLE_REPLACEMENT)
195 int code_get_sync_slot_count(codeinfo *code);
196 #endif /* defined(ENABLE_REPLACEMENT) */
198 void code_free_code_of_method(methodinfo *m);
204 * These are local overrides for various environment variables in Emacs.
205 * Please do not remove this and leave it at the end of the file, where
206 * Emacs will automagically detect them.
207 * ---------------------------------------------------------------------
210 * indent-tabs-mode: t
214 * vim:noexpandtab:sw=4:ts=4: