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
29 Changes: Christian Ullrich
31 $Id: codegen.inc.h 3745 2005-11-22 23:43:53Z 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;
54 #include "vm/global.h"
55 #include "vm/references.h"
56 #include "vm/method.h"
57 #include "vm/jit/jit.h"
58 #include "vm/jit/reg.h"
59 #include "vm/jit/inline/inline.h"
62 #define MCODEINITSIZE (1<<15) /* 32 Kbyte code area initialization size */
63 #define DSEGINITSIZE (1<<12) /* 4 Kbyte data area initialization size */
66 /* Register Pack/Unpack Macros ************************************************/
68 #define GET_LOW_REG(a) (((a) & 0xffff0000) >> 16)
69 #define GET_HIGH_REG(a) ((a) & 0x0000ffff)
71 #define PACK_REGS(low,high) \
72 ( ((high) & 0x0000ffff) | (((low) & 0x0000ffff) << 16) )
75 #if SIZEOF_VOID_P == 8
76 #define dseg_addaddress(cd,value) dseg_adds8((cd), (s8) (value))
78 #define dseg_addaddress(cd,value) dseg_adds4((cd), (s4) (value))
82 /************************* critical sections *********************************/
84 struct threadcritnodetemp {
85 threadcritnodetemp *next;
93 u1 *mcodebase; /* base pointer of code area */
94 s4 *mcodeend; /* pointer to end of code area */
95 s4 mcodesize; /* complete size of code area (bytes) */
97 #if defined(__I386__) || defined(__X86_64__) || defined(ENABLE_INTRP)
98 u1 *mcodeptr; /* code generation pointer */
101 #if defined(__I386__) || defined(__MIPS__) || defined(__X86_64__)
102 u1 *lastmcodeptr; /* last patcher position of basic block */
105 #if defined(ENABLE_INTRP)
109 u1 *dsegtop; /* pointer to top (end) of data area */
110 s4 dsegsize; /* complete size of data area (bytes) */
111 s4 dseglen; /* used size of data area (bytes) */
112 /* data area grows from top to bottom */
114 jumpref *jumpreferences; /* list of jumptable target addresses */
115 dataref *datareferences; /* list of data segment references */
116 branchref *xboundrefs; /* list of bound check branches */
117 branchref *xnullrefs; /* list of null check branches */
118 branchref *xcastrefs; /* list of cast check branches */
119 branchref *xstorerefs; /* list of array store check branches */
120 branchref *xdivrefs; /* list of divide by zero branches */
121 branchref *xexceptionrefs; /* list of exception branches */
124 linenumberref *linenumberreferences; /* list of line numbers and the */
125 /* program counters of their first */
127 s4 linenumbertablesizepos;
128 s4 linenumbertablestartpos;
132 s4 exceptiontablelength; /* exceptiontable length */
133 exceptiontable *exceptiontable; /* the exceptiontable */
135 threadcritnodetemp *threadcrit; /* List of critical code regions */
136 threadcritnodetemp threadcritcurrent;
137 s4 threadcritcount; /* Number of critical regions */
144 /***************** forward references in branch instructions ******************/
147 s4 branchpos; /* patching position in code segment */
148 s4 reg; /* used for ArrayIndexOutOfBounds index reg */
149 branchref *next; /* next element in branchref list */
153 /******************** forward references in tables ***************************/
156 s4 tablepos; /* patching position in data segment */
157 basicblock *target; /* target basic block */
158 jumpref *next; /* next element in jumpref list */
163 u1 *pos; /* patching position in generated code */
164 dataref *next; /* next element in dataref list */
177 struct linenumberref {
178 s4 tablepos; /* patching position in data segment */
179 s4 targetmpc; /* machine code program counter of first */
180 /* instruction for given line */
181 u2 linenumber; /* line number, used for inserting into the */
182 /* table and for validty checking */
183 linenumberref *next; /* next element in linenumberref list */
187 #if defined(__I386__) || defined(__X86_64__) || defined(ENABLE_INTRP) || defined(DISABLE_GC)
188 typedef struct _methodtree_element methodtree_element;
190 struct _methodtree_element {
197 /* function prototypes ********************************************************/
199 void codegen_init(void);
200 void codegen_setup(methodinfo *m, codegendata *cd, t_inlining_globals *e);
201 bool codegen(methodinfo *m, codegendata *cd, registerdata *rd);
202 void codegen_free(methodinfo *m, codegendata *cd);
203 void codegen_close(void);
204 void codegen_insertmethod(u1 *startpc, u1 *endpc);
206 u1 *codegen_findmethod(u1 *pc);
208 #if defined(__I386__) || defined(__X86_64__)
209 void codegen_addreference(codegendata *cd, struct basicblock *target, void *branchptr);
212 void dseg_display(methodinfo *m, codegendata *cd);
214 u1 *codegen_createnativestub(functionptr f, methodinfo *m);
215 void codegen_disassemble_nativestub(methodinfo *m, u1 *start, u1 *end);
217 void codegen_start_native_call(u1 *datasp, u1 *pv, u1 *sp, u1 *ra);
218 void codegen_finish_native_call(u1 *datasp);
220 u1 *createcompilerstub(methodinfo *m);
221 u1 *createnativestub(functionptr f, methodinfo *m, codegendata *cd,
222 registerdata *rd, methoddesc *md);
224 void removecompilerstub(u1 *stub);
225 void removenativestub(u1 *stub);
227 /* machine dependent find method function */
228 u1 *md_codegen_findmethod(u1 *ra);
230 #endif /* _CODEGEN_INC_H */
234 * These are local overrides for various environment variables in Emacs.
235 * Please do not remove this and leave it at the end of the file, where
236 * Emacs will automagically detect them.
237 * ---------------------------------------------------------------------
240 * indent-tabs-mode: t