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 1339 2004-07-21 16:03:08Z twisti $
34 #ifndef _CODEGEN_INC_H
35 #define _CODEGEN_INC_H
42 #define MCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */
43 #define DSEGINITSIZE (1<<12) /* 4 Kbyte data area initialization size */
46 #define dseg_addaddress(m, value) dseg_adds8((m), (s8) (value))
48 #define dseg_addaddress(m, value) dseg_adds4((m), (s4) (value))
52 typedef struct codegendata codegendata;
53 typedef struct branchref branchref;
54 typedef struct jumpref jumpref;
55 typedef struct dataref dataref;
56 typedef struct linenumberref linenumberref;
57 typedef struct threadcritnodetemp threadcritnodetemp;
60 /************************* critical sections *********************************/
62 struct threadcritnodetemp {
63 threadcritnodetemp *next;
71 u1 *mcodebase; /* base pointer of code area */
72 s4 *mcodeend; /* pointer to end of code area */
73 s4 mcodesize; /* complete size of code area (bytes) */
75 u1 *mcodeptr; /* code generation pointer */
77 u1 *dsegtop; /* pointer to top (end) of data area */
78 s4 dsegsize; /* complete size of data area (bytes) */
79 s4 dseglen; /* used size of data area (bytes) */
80 /* data area grows from top to bottom */
82 jumpref *jumpreferences; /* list of jumptable target addresses */
83 dataref *datareferences; /* list of data segment references */
84 branchref *xboundrefs; /* list of bound check branches */
85 branchref *xcheckarefs; /* list of array size check branches */
86 branchref *xnullrefs; /* list of null check branches */
87 branchref *xcastrefs; /* list of cast check branches */
88 branchref *xdivrefs; /* list of divide by zero branches */
89 branchref *xexceptionrefs; /* list of exception branches */
91 linenumberref *linenumberreferences; /* list of line numbers and the */
92 /* program counters of their first */
94 s4 linenumbertablesizepos;
95 s4 linenumbertablestartpos;
98 threadcritnodetemp *threadcrit; /* List of critical code regions */
99 threadcritnodetemp threadcritcurrent;
100 s4 threadcritcount; /* Number of critical regions */
104 /***************** forward references in branch instructions ******************/
107 s4 branchpos; /* patching position in code segment */
108 s4 reg; /* used for ArrayIndexOutOfBounds index reg */
109 branchref *next; /* next element in branchref list */
113 /******************** forward references in tables ***************************/
116 s4 tablepos; /* patching position in data segment */
117 struct basicblock *target; /* target basic block */
118 jumpref *next; /* next element in jumpref list */
123 u1 *pos; /* patching position in generated code */
124 dataref *next; /* next element in dataref list */
128 struct linenumberref {
129 s4 tablepos; /* patching position in data segment */
130 int targetmpc; /* machine code program counter of first */
131 /* instruction for given line */
132 u2 linenumber; /* line number, used for inserting into the */
133 /* table and for validty checking */
134 linenumberref *next; /* next element in linenumberref list */
138 #if defined(__I386__) || defined(__X86_64__)
139 typedef struct _methodtree_element methodtree_element;
141 struct _methodtree_element {
148 /* function prototypes */
151 void codegen_setup(methodinfo *m); /* allocates code and data area */
152 void codegen(methodinfo *m);
153 void codegen_close(methodinfo *m); /* releases temporary storage */
154 void codegen_insertmethod(void *startpc, void *endpc);
156 void dseg_display(methodinfo *m);
158 void init_exceptions();
160 #endif /* _CODEGEN_INC_H */
164 * These are local overrides for various environment variables in Emacs.
165 * Please do not remove this and leave it at the end of the file, where
166 * Emacs will automagically detect them.
167 * ---------------------------------------------------------------------
170 * indent-tabs-mode: t