1 /* src/vm/jit/codegen.inc.h - code generation header
3 Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
4 R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
5 C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
6 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., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Christian Thalinger
31 $Id: codegen.inc.h 2234 2005-04-06 12:04:25Z twisti $
36 #ifndef _CODEGEN_INC_H
37 #define _CODEGEN_INC_H
39 /* We typedef these structures before #includes to resolve circular */
42 typedef struct codegendata codegendata;
43 typedef struct branchref branchref;
44 typedef struct jumpref jumpref;
45 typedef struct dataref dataref;
46 typedef struct patchref patchref;
47 typedef struct linenumberref linenumberref;
48 typedef struct threadcritnodetemp threadcritnodetemp;
52 #include "vm/global.h"
53 #include "vm/references.h"
54 #include "vm/method.h"
55 #include "vm/jit/jit.h"
56 #include "vm/jit/reg.h"
57 #include "vm/jit/inline/inline.h"
60 #define MCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */
61 #define DSEGINITSIZE (1<<12) /* 4 Kbyte data area initialization size */
64 #define dseg_addaddress(cd,value) dseg_adds8((cd), (s8) (value))
66 #define dseg_addaddress(cd,value) dseg_adds4((cd), (s4) (value))
70 /************************* critical sections *********************************/
72 struct threadcritnodetemp {
73 threadcritnodetemp *next;
81 u1 *mcodebase; /* base pointer of code area */
82 s4 *mcodeend; /* pointer to end of code area */
83 s4 mcodesize; /* complete size of code area (bytes) */
85 #if defined(__I386__) || defined(__X86_64__)
86 u1 *mcodeptr; /* code generation pointer */
89 u1 *dsegtop; /* pointer to top (end) of data area */
90 s4 dsegsize; /* complete size of data area (bytes) */
91 s4 dseglen; /* used size of data area (bytes) */
92 /* data area grows from top to bottom */
94 jumpref *jumpreferences; /* list of jumptable target addresses */
95 dataref *datareferences; /* list of data segment references */
96 branchref *xboundrefs; /* list of bound check branches */
97 branchref *xcheckarefs; /* list of array size check branches */
98 branchref *xnullrefs; /* list of null check branches */
99 branchref *xcastrefs; /* list of cast check branches */
100 branchref *xdivrefs; /* list of divide by zero branches */
101 branchref *xexceptionrefs; /* list of exception branches */
104 linenumberref *linenumberreferences; /* list of line numbers and the */
105 /* program counters of their first */
107 s4 linenumbertablesizepos;
108 s4 linenumbertablestartpos;
112 s4 exceptiontablelength; /* exceptiontable length */
113 exceptiontable *exceptiontable; /* the exceptiontable */
115 threadcritnodetemp *threadcrit; /* List of critical code regions */
116 threadcritnodetemp threadcritcurrent;
117 s4 threadcritcount; /* Number of critical regions */
124 /***************** forward references in branch instructions ******************/
127 s4 branchpos; /* patching position in code segment */
128 s4 reg; /* used for ArrayIndexOutOfBounds index reg */
129 branchref *next; /* next element in branchref list */
133 /******************** forward references in tables ***************************/
136 s4 tablepos; /* patching position in data segment */
137 basicblock *target; /* target basic block */
138 jumpref *next; /* next element in jumpref list */
143 u1 *pos; /* patching position in generated code */
144 dataref *next; /* next element in dataref list */
150 functionptr asmwrapper;
156 struct linenumberref {
157 s4 tablepos; /* patching position in data segment */
158 s4 targetmpc; /* machine code program counter of first */
159 /* instruction for given line */
160 u2 linenumber; /* line number, used for inserting into the */
161 /* table and for validty checking */
162 linenumberref *next; /* next element in linenumberref list */
166 #if defined(__I386__) || defined(__X86_64__)
167 typedef struct _methodtree_element methodtree_element;
169 struct _methodtree_element {
176 /* function prototypes ********************************************************/
179 void codegen_setup(methodinfo *m, codegendata *cd, t_inlining_globals *e);
180 void codegen(methodinfo *m, codegendata *cd, registerdata *rd);
181 void codegen_free(methodinfo *m, codegendata *cd);
182 void codegen_close();
183 void codegen_insertmethod(functionptr startpc, functionptr endpc);
185 #if defined(__I386__) || defined(__X86_64__)
186 functionptr codegen_findmethod(functionptr pc);
187 #elif defined(__ALPHA__)
188 void *codegen_findmethod(void *returnAdress);
191 #if defined(__I386__) || defined(__X86_64__)
192 void codegen_addreference(codegendata *cd, struct basicblock *target, void *branchptr);
196 void dseg_display(methodinfo *m, codegendata *cd);
198 void init_exceptions();
201 u1 *createcompilerstub(methodinfo *m);
202 u1 *createnativestub(functionptr f, methodinfo *m);
204 void removecompilerstub(u1 *stub);
205 void removenativestub(u1 *stub);
207 #endif /* _CODEGEN_INC_H */
211 * These are local overrides for various environment variables in Emacs.
212 * Please do not remove this and leave it at the end of the file, where
213 * Emacs will automagically detect them.
214 * ---------------------------------------------------------------------
217 * indent-tabs-mode: t