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 1565 2004-11-23 15:56:37Z 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;
51 #include "jit/inline.h"
55 #define MCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */
56 #define DSEGINITSIZE (1<<12) /* 4 Kbyte data area initialization size */
59 #define dseg_addaddress(cd,value) dseg_adds8((cd), (s8) (value))
61 #define dseg_addaddress(cd,value) dseg_adds4((cd), (s4) (value))
65 /************************* critical sections *********************************/
67 struct threadcritnodetemp {
68 threadcritnodetemp *next;
76 u1 *mcodebase; /* base pointer of code area */
77 s4 *mcodeend; /* pointer to end of code area */
78 s4 mcodesize; /* complete size of code area (bytes) */
80 u1 *mcodeptr; /* code generation pointer */
82 u1 *dsegtop; /* pointer to top (end) of data area */
83 s4 dsegsize; /* complete size of data area (bytes) */
84 s4 dseglen; /* used size of data area (bytes) */
85 /* data area grows from top to bottom */
87 jumpref *jumpreferences; /* list of jumptable target addresses */
88 dataref *datareferences; /* list of data segment references */
89 branchref *xboundrefs; /* list of bound check branches */
90 branchref *xcheckarefs; /* list of array size check branches */
91 branchref *xnullrefs; /* list of null check branches */
92 branchref *xcastrefs; /* list of cast check branches */
93 branchref *xdivrefs; /* list of divide by zero branches */
94 branchref *xexceptionrefs; /* list of exception branches */
95 clinitref *clinitrefs;
97 linenumberref *linenumberreferences; /* list of line numbers and the */
98 /* program counters of their first */
100 s4 linenumbertablesizepos;
101 s4 linenumbertablestartpos;
105 s4 exceptiontablelength;/* exceptiontable length */
106 exceptiontable *exceptiontable; /* the exceptiontable */
108 threadcritnodetemp *threadcrit; /* List of critical code regions */
109 threadcritnodetemp threadcritcurrent;
110 s4 threadcritcount; /* Number of critical regions */
116 /***************** forward references in branch instructions ******************/
119 s4 branchpos; /* patching position in code segment */
120 s4 reg; /* used for ArrayIndexOutOfBounds index reg */
121 branchref *next; /* next element in branchref list */
125 /******************** forward references in tables ***************************/
128 s4 tablepos; /* patching position in data segment */
129 struct basicblock *target; /* target basic block */
130 jumpref *next; /* next element in jumpref list */
135 u1 *pos; /* patching position in generated code */
136 dataref *next; /* next element in dataref list */
144 #if defined(__I386__) || defined(__X86_64__)
146 u1 *mcodeptr; /* codegendata dummy pointer to generate code */
152 struct linenumberref {
153 s4 tablepos; /* patching position in data segment */
154 int targetmpc; /* machine code program counter of first */
155 /* instruction for given line */
156 u2 linenumber; /* line number, used for inserting into the */
157 /* table and for validty checking */
158 linenumberref *next; /* next element in linenumberref list */
162 #if defined(__I386__) || defined(__X86_64__)
163 typedef struct _methodtree_element methodtree_element;
165 struct _methodtree_element {
172 /* function prototypes */
175 void codegen_setup(methodinfo *m, codegendata *cd, t_inlining_globals *e);
176 void codegen(methodinfo *m, codegendata *cd, registerdata *rd);
177 void codegen_free(methodinfo *m, codegendata *cd);
178 void codegen_close();
179 void codegen_insertmethod(functionptr startpc, functionptr endpc);
181 #if defined(__I386__) || defined(__X86_64__)
182 void codegen_addreference(codegendata *cd, struct basicblock *target, void *branchptr);
185 void dseg_display(methodinfo *m, codegendata *cd);
187 void init_exceptions();
189 #endif /* _CODEGEN_INC_H */
193 * These are local overrides for various environment variables in Emacs.
194 * Please do not remove this and leave it at the end of the file, where
195 * Emacs will automagically detect them.
196 * ---------------------------------------------------------------------
199 * indent-tabs-mode: t