1 /* jit/codegen.inc.h - code generation header
3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
5 M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
6 P. Tomsich, J. Wenninger
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., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Christian Thalinger
29 $Id: codegen.inc.h 1691 2004-12-06 12:29:35Z twisti $
34 #ifndef _CODEGEN_INC_H
35 #define _CODEGEN_INC_H
37 /* We typedef these structures before #includes to resolve circular */
40 typedef struct codegendata codegendata;
41 typedef struct branchref branchref;
42 typedef struct jumpref jumpref;
43 typedef struct dataref dataref;
44 typedef struct clinitref clinitref;
45 typedef struct linenumberref linenumberref;
46 typedef struct threadcritnodetemp threadcritnodetemp;
50 #include "vm/global.h"
51 #include "vm/jit/jit.h"
52 #include "vm/jit/reg.h"
53 #include "vm/jit/inline/inline.h"
56 #define MCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */
57 #define DSEGINITSIZE (1<<12) /* 4 Kbyte data area initialization size */
60 #define dseg_addaddress(cd,value) dseg_adds8((cd), (s8) (value))
62 #define dseg_addaddress(cd,value) dseg_adds4((cd), (s4) (value))
66 /************************* critical sections *********************************/
68 struct threadcritnodetemp {
69 threadcritnodetemp *next;
77 u1 *mcodebase; /* base pointer of code area */
78 s4 *mcodeend; /* pointer to end of code area */
79 s4 mcodesize; /* complete size of code area (bytes) */
81 #if defined(__I386__) || defined(__X86_64__)
82 u1 *mcodeptr; /* code generation pointer */
85 u1 *dsegtop; /* pointer to top (end) of data area */
86 s4 dsegsize; /* complete size of data area (bytes) */
87 s4 dseglen; /* used size of data area (bytes) */
88 /* data area grows from top to bottom */
90 jumpref *jumpreferences; /* list of jumptable target addresses */
91 dataref *datareferences; /* list of data segment references */
92 branchref *xboundrefs; /* list of bound check branches */
93 branchref *xcheckarefs; /* list of array size check branches */
94 branchref *xnullrefs; /* list of null check branches */
95 branchref *xcastrefs; /* list of cast check branches */
96 branchref *xdivrefs; /* list of divide by zero branches */
97 branchref *xexceptionrefs; /* list of exception branches */
98 clinitref *clinitrefs;
100 linenumberref *linenumberreferences; /* list of line numbers and the */
101 /* program counters of their first */
103 s4 linenumbertablesizepos;
104 s4 linenumbertablestartpos;
108 s4 exceptiontablelength; /* exceptiontable length */
109 exceptiontable *exceptiontable; /* the exceptiontable */
111 threadcritnodetemp *threadcrit; /* List of critical code regions */
112 threadcritnodetemp threadcritcurrent;
113 s4 threadcritcount; /* Number of critical regions */
120 /***************** forward references in branch instructions ******************/
123 s4 branchpos; /* patching position in code segment */
124 s4 reg; /* used for ArrayIndexOutOfBounds index reg */
125 branchref *next; /* next element in branchref list */
129 /******************** forward references in tables ***************************/
132 s4 tablepos; /* patching position in data segment */
133 basicblock *target; /* target basic block */
134 jumpref *next; /* next element in jumpref list */
139 u1 *pos; /* patching position in generated code */
140 dataref *next; /* next element in dataref list */
151 struct linenumberref {
152 s4 tablepos; /* patching position in data segment */
153 s4 targetmpc; /* machine code program counter of first */
154 /* instruction for given line */
155 u2 linenumber; /* line number, used for inserting into the */
156 /* table and for validty checking */
157 linenumberref *next; /* next element in linenumberref list */
161 #if defined(__I386__) || defined(__X86_64__)
162 typedef struct _methodtree_element methodtree_element;
164 struct _methodtree_element {
171 /* function prototypes ********************************************************/
174 void codegen_setup(methodinfo *m, codegendata *cd, t_inlining_globals *e);
175 void codegen(methodinfo *m, codegendata *cd, registerdata *rd);
176 void codegen_free(methodinfo *m, codegendata *cd);
177 void codegen_close();
178 void codegen_insertmethod(functionptr startpc, functionptr endpc);
180 #if defined(__I386__) || defined(__X86_64__)
181 functionptr codegen_findmethod(functionptr pc);
182 #elif defined(__ALPHA__)
183 void *codegen_findmethod(void *returnAdress);
186 #if defined(__I386__) || defined(__X86_64__)
187 void codegen_addreference(codegendata *cd, struct basicblock *target, void *branchptr);
191 void dseg_display(methodinfo *m, codegendata *cd);
193 void init_exceptions();
195 #endif /* _CODEGEN_INC_H */
199 * These are local overrides for various environment variables in Emacs.
200 * Please do not remove this and leave it at the end of the file, where
201 * Emacs will automagically detect them.
202 * ---------------------------------------------------------------------
205 * indent-tabs-mode: t