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Compile fixes.
[SquirrelJME.git] / nanocoat / lib / 3rdparty / lua / luac.c
blob7899f979e12e1c094da2ebda47d62bee9bfcde1a
1 /*
2 ** $Id: luac.c $
3 ** Lua compiler (saves bytecodes to files; also lists bytecodes)
4 ** See Copyright Notice in lua.h
5 */
6
7 #define luac_c
8 #define LUA_CORE
9
10 #include "lprefix.h"
11
12 #include <ctype.h>
13 #include <errno.h>
14 #include <stdio.h>
15 #include <stdlib.h>
16 #include <string.h>
17
18 #include "lua.h"
19 #include "lauxlib.h"
20
21 #include "ldebug.h"
22 #include "lobject.h"
23 #include "lopcodes.h"
24 #include "lopnames.h"
25 #include "lstate.h"
26 #include "lundump.h"
27
28 static void PrintFunction(const Proto* f, int full);
29 #define luaU_print PrintFunction
30
31 #define PROGNAME "luac" /* default program name */
32 #define OUTPUT PROGNAME ".out" /* default output file */
33
34 static int listing=0; /* list bytecodes? */
35 static int dumping=1; /* dump bytecodes? */
36 static int stripping=0; /* strip debug information? */
37 static char Output[]={ OUTPUT }; /* default output file name */
38 static const char* output=Output; /* actual output file name */
39 static const char* progname=PROGNAME; /* actual program name */
40 static TString **tmname;
41
42 static void fatal(const char* message)
43 {
44 fprintf(stderr,"%s: %s\n",progname,message);
45 exit(EXIT_FAILURE);
46 }
47
48 static void cannot(const char* what)
49 {
50 fprintf(stderr,"%s: cannot %s %s: %s\n",progname,what,output,strerror(errno));
51 exit(EXIT_FAILURE);
52 }
53
54 static void usage(const char* message)
55 {
56 if (*message=='-')
57 fprintf(stderr,"%s: unrecognized option '%s'\n",progname,message);
58 else
59 fprintf(stderr,"%s: %s\n",progname,message);
60 fprintf(stderr,
61 "usage: %s [options] [filenames]\n"
62 "Available options are:\n"
63 " -l list (use -l -l for full listing)\n"
64 " -o name output to file 'name' (default is \"%s\")\n"
65 " -p parse only\n"
66 " -s strip debug information\n"
67 " -v show version information\n"
68 " -- stop handling options\n"
69 " - stop handling options and process stdin\n"
70 ,progname,Output);
71 exit(EXIT_FAILURE);
72 }
73
74 #define IS(s) (strcmp(argv[i],s)==0)
75
76 static int doargs(int argc, char* argv[])
77 {
78 int i;
79 int version=0;
80 if (argv[0]!=NULL && *argv[0]!=0) progname=argv[0];
81 for (i=1; i<argc; i++)
82 {
83 if (*argv[i]!='-') /* end of options; keep it */
84 break;
85 else if (IS("--")) /* end of options; skip it */
86 {
87 ++i;
88 if (version) ++version;
89 break;
90 }
91 else if (IS("-")) /* end of options; use stdin */
92 break;
93 else if (IS("-l")) /* list */
94 ++listing;
95 else if (IS("-o")) /* output file */
96 {
97 output=argv[++i];
98 if (output==NULL || *output==0 || (*output=='-' && output[1]!=0))
99 usage("'-o' needs argument");
100 if (IS("-")) output=NULL;
101 }
102 else if (IS("-p")) /* parse only */
103 dumping=0;
104 else if (IS("-s")) /* strip debug information */
105 stripping=1;
106 else if (IS("-v")) /* show version */
107 ++version;
108 else /* unknown option */
109 usage(argv[i]);
110 }
111 if (i==argc && (listing || !dumping))
112 {
113 dumping=0;
114 argv[--i]=Output;
115 }
116 if (version)
117 {
118 printf("%s\n",LUA_COPYRIGHT);
119 if (version==argc-1) exit(EXIT_SUCCESS);
120 }
121 return i;
122 }
123
124 #define FUNCTION "(function()end)();\n"
125
126 static const char* reader(lua_State* L, void* ud, size_t* size)
127 {
128 UNUSED(L);
129 if ((*(int*)ud)--)
130 {
131 *size=sizeof(FUNCTION)-1;
132 return FUNCTION;
133 }
134 else
135 {
136 *size=0;
137 return NULL;
138 }
139 }
140
141 #define toproto(L,i) getproto(s2v(L->top.p+(i)))
142
143 static const Proto* combine(lua_State* L, int n)
144 {
145 if (n==1)
146 return toproto(L,-1);
147 else
148 {
149 Proto* f;
150 int i=n;
151 if (lua_load(L,reader,&i,"=(" PROGNAME ")",NULL)!=LUA_OK) fatal(lua_tostring(L,-1));
152 f=toproto(L,-1);
153 for (i=0; i<n; i++)
154 {
155 f->p[i]=toproto(L,i-n-1);
156 if (f->p[i]->sizeupvalues>0) f->p[i]->upvalues[0].instack=0;
157 }
158 return f;
159 }
160 }
161
162 static int writer(lua_State* L, sjme_cpointer p, size_t size, void* u)
163 {
164 UNUSED(L);
165 return (fwrite(p,size,1,(FILE*)u)!=1) && (size!=0);
166 }
167
168 static int pmain(lua_State* L)
169 {
170 int argc=(int)lua_tointeger(L,1);
171 char** argv=(char**)lua_touserdata(L,2);
172 const Proto* f;
173 int i;
174 tmname=G(L)->tmname;
175 if (!lua_checkstack(L,argc)) fatal("too many input files");
176 for (i=0; i<argc; i++)
177 {
178 const char* filename=IS("-") ? NULL : argv[i];
179 if (luaL_loadfile(L,filename)!=LUA_OK) fatal(lua_tostring(L,-1));
180 }
181 f=combine(L,argc);
182 if (listing) luaU_print(f,listing>1);
183 if (dumping)
184 {
185 FILE* D= (output==NULL) ? stdout : fopen(output,"wb");
186 if (D==NULL) cannot("open");
187 lua_lock(L);
188 luaU_dump(L,f,writer,D,stripping);
189 lua_unlock(L);
190 if (ferror(D)) cannot("write");
191 if (fclose(D)) cannot("close");
192 }
193 return 0;
194 }
195
196 int main(int argc, char* argv[])
197 {
198 lua_State* L;
199 int i=doargs(argc,argv);
200 argc-=i; argv+=i;
201 if (argc<=0) usage("no input files given");
202 L=luaL_newstate();
203 if (L==NULL) fatal("cannot create state: not enough memory");
204 lua_pushcfunction(L,&pmain);
205 lua_pushinteger(L,argc);
206 lua_pushlightuserdata(L,argv);
207 if (lua_pcall(L,2,0,0)!=LUA_OK) fatal(lua_tostring(L,-1));
208 lua_close(L);
209 return EXIT_SUCCESS;
210 }
211
212 /*
213 ** print bytecodes
214 */
215
216 #define UPVALNAME(x) ((f->upvalues[x].name) ? getstr(f->upvalues[x].name) : "-")
217 #define VOID(p) ((const void*)(p))
218 #define eventname(i) (getstr(tmname[i]))
219
220 static void PrintString(const TString* ts)
221 {
222 const char* s=getstr(ts);
223 size_t i,n=tsslen(ts);
224 printf("\"");
225 for (i=0; i<n; i++)
226 {
227 int c=(int)(unsigned char)s[i];
228 switch (c)
229 {
230 case '"':
231 printf("\\\"");
232 break;
233 case '\\':
234 printf("\\\\");
235 break;
236 case '\a':
237 printf("\\a");
238 break;
239 case '\b':
240 printf("\\b");
241 break;
242 case '\f':
243 printf("\\f");
244 break;
245 case '\n':
246 printf("\\n");
247 break;
248 case '\r':
249 printf("\\r");
250 break;
251 case '\t':
252 printf("\\t");
253 break;
254 case '\v':
255 printf("\\v");
256 break;
257 default:
258 if (isprint(c)) printf("%c",c); else printf("\\%03d",c);
259 break;
260 }
261 }
262 printf("\"");
263 }
264
265 static void PrintType(const Proto* f, int i)
266 {
267 const TValue* o=&f->k[i];
268 switch (ttypetag(o))
269 {
270 case LUA_VNIL:
271 printf("N");
272 break;
273 case LUA_VFALSE:
274 case LUA_VTRUE:
275 printf("B");
276 break;
277 case LUA_VNUMFLT:
278 printf("F");
279 break;
280 case LUA_VNUMINT:
281 printf("I");
282 break;
283 case LUA_VSHRSTR:
284 case LUA_VLNGSTR:
285 printf("S");
286 break;
287 default: /* cannot happen */
288 printf("?%d",ttypetag(o));
289 break;
290 }
291 printf("\t");
292 }
293
294 static void PrintConstant(const Proto* f, int i)
295 {
296 const TValue* o=&f->k[i];
297 switch (ttypetag(o))
298 {
299 case LUA_VNIL:
300 printf("nil");
301 break;
302 case LUA_VFALSE:
303 printf("false");
304 break;
305 case LUA_VTRUE:
306 printf("true");
307 break;
308 case LUA_VNUMFLT:
309 {
310 char buff[100];
311 sprintf(buff,LUA_NUMBER_FMT,fltvalue(o));
312 printf("%s",buff);
313 if (buff[strspn(buff,"-0123456789")]=='\0') printf(".0");
314 break;
315 }
316 case LUA_VNUMINT:
317 printf(LUA_INTEGER_FMT,ivalue(o));
318 break;
319 case LUA_VSHRSTR:
320 case LUA_VLNGSTR:
321 PrintString(tsvalue(o));
322 break;
323 default: /* cannot happen */
324 printf("?%d",ttypetag(o));
325 break;
326 }
327 }
328
329 #define COMMENT "\t; "
330 #define EXTRAARG GETARG_Ax(code[pc+1])
331 #define EXTRAARGC (EXTRAARG*(MAXARG_C+1))
332 #define ISK (isk ? "k" : "")
333
334 static void PrintCode(const Proto* f)
335 {
336 const Instruction* code=f->code;
337 int pc,n=f->sizecode;
338 for (pc=0; pc<n; pc++)
339 {
340 Instruction i=code[pc];
341 OpCode o=GET_OPCODE(i);
342 int a=GETARG_A(i);
343 int b=GETARG_B(i);
344 int c=GETARG_C(i);
345 int ax=GETARG_Ax(i);
346 int bx=GETARG_Bx(i);
347 int sb=GETARG_sB(i);
348 int sc=GETARG_sC(i);
349 int sbx=GETARG_sBx(i);
350 int isk=GETARG_k(i);
351 int line=luaG_getfuncline(f,pc);
352 printf("\t%d\t",pc+1);
353 if (line>0) printf("[%d]\t",line); else printf("[-]\t");
354 printf("%-9s\t",opnames[o]);
355 switch (o)
356 {
357 case OP_MOVE:
358 printf("%d %d",a,b);
359 break;
360 case OP_LOADI:
361 printf("%d %d",a,sbx);
362 break;
363 case OP_LOADF:
364 printf("%d %d",a,sbx);
365 break;
366 case OP_LOADK:
367 printf("%d %d",a,bx);
368 printf(COMMENT); PrintConstant(f,bx);
369 break;
370 case OP_LOADKX:
371 printf("%d",a);
372 printf(COMMENT); PrintConstant(f,EXTRAARG);
373 break;
374 case OP_LOADFALSE:
375 printf("%d",a);
376 break;
377 case OP_LFALSESKIP:
378 printf("%d",a);
379 break;
380 case OP_LOADTRUE:
381 printf("%d",a);
382 break;
383 case OP_LOADNIL:
384 printf("%d %d",a,b);
385 printf(COMMENT "%d out",b+1);
386 break;
387 case OP_GETUPVAL:
388 printf("%d %d",a,b);
389 printf(COMMENT "%s",UPVALNAME(b));
390 break;
391 case OP_SETUPVAL:
392 printf("%d %d",a,b);
393 printf(COMMENT "%s",UPVALNAME(b));
394 break;
395 case OP_GETTABUP:
396 printf("%d %d %d",a,b,c);
397 printf(COMMENT "%s",UPVALNAME(b));
398 printf(" "); PrintConstant(f,c);
399 break;
400 case OP_GETTABLE:
401 printf("%d %d %d",a,b,c);
402 break;
403 case OP_GETI:
404 printf("%d %d %d",a,b,c);
405 break;
406 case OP_GETFIELD:
407 printf("%d %d %d",a,b,c);
408 printf(COMMENT); PrintConstant(f,c);
409 break;
410 case OP_SETTABUP:
411 printf("%d %d %d%s",a,b,c,ISK);
412 printf(COMMENT "%s",UPVALNAME(a));
413 printf(" "); PrintConstant(f,b);
414 if (isk) { printf(" "); PrintConstant(f,c); }
415 break;
416 case OP_SETTABLE:
417 printf("%d %d %d%s",a,b,c,ISK);
418 if (isk) { printf(COMMENT); PrintConstant(f,c); }
419 break;
420 case OP_SETI:
421 printf("%d %d %d%s",a,b,c,ISK);
422 if (isk) { printf(COMMENT); PrintConstant(f,c); }
423 break;
424 case OP_SETFIELD:
425 printf("%d %d %d%s",a,b,c,ISK);
426 printf(COMMENT); PrintConstant(f,b);
427 if (isk) { printf(" "); PrintConstant(f,c); }
428 break;
429 case OP_NEWTABLE:
430 printf("%d %d %d",a,b,c);
431 printf(COMMENT "%d",c+EXTRAARGC);
432 break;
433 case OP_SELF:
434 printf("%d %d %d%s",a,b,c,ISK);
435 if (isk) { printf(COMMENT); PrintConstant(f,c); }
436 break;
437 case OP_ADDI:
438 printf("%d %d %d",a,b,sc);
439 break;
440 case OP_ADDK:
441 printf("%d %d %d",a,b,c);
442 printf(COMMENT); PrintConstant(f,c);
443 break;
444 case OP_SUBK:
445 printf("%d %d %d",a,b,c);
446 printf(COMMENT); PrintConstant(f,c);
447 break;
448 case OP_MULK:
449 printf("%d %d %d",a,b,c);
450 printf(COMMENT); PrintConstant(f,c);
451 break;
452 case OP_MODK:
453 printf("%d %d %d",a,b,c);
454 printf(COMMENT); PrintConstant(f,c);
455 break;
456 case OP_POWK:
457 printf("%d %d %d",a,b,c);
458 printf(COMMENT); PrintConstant(f,c);
459 break;
460 case OP_DIVK:
461 printf("%d %d %d",a,b,c);
462 printf(COMMENT); PrintConstant(f,c);
463 break;
464 case OP_IDIVK:
465 printf("%d %d %d",a,b,c);
466 printf(COMMENT); PrintConstant(f,c);
467 break;
468 case OP_BANDK:
469 printf("%d %d %d",a,b,c);
470 printf(COMMENT); PrintConstant(f,c);
471 break;
472 case OP_BORK:
473 printf("%d %d %d",a,b,c);
474 printf(COMMENT); PrintConstant(f,c);
475 break;
476 case OP_BXORK:
477 printf("%d %d %d",a,b,c);
478 printf(COMMENT); PrintConstant(f,c);
479 break;
480 case OP_SHRI:
481 printf("%d %d %d",a,b,sc);
482 break;
483 case OP_SHLI:
484 printf("%d %d %d",a,b,sc);
485 break;
486 case OP_ADD:
487 printf("%d %d %d",a,b,c);
488 break;
489 case OP_SUB:
490 printf("%d %d %d",a,b,c);
491 break;
492 case OP_MUL:
493 printf("%d %d %d",a,b,c);
494 break;
495 case OP_MOD:
496 printf("%d %d %d",a,b,c);
497 break;
498 case OP_POW:
499 printf("%d %d %d",a,b,c);
500 break;
501 case OP_DIV:
502 printf("%d %d %d",a,b,c);
503 break;
504 case OP_IDIV:
505 printf("%d %d %d",a,b,c);
506 break;
507 case OP_BAND:
508 printf("%d %d %d",a,b,c);
509 break;
510 case OP_BOR:
511 printf("%d %d %d",a,b,c);
512 break;
513 case OP_BXOR:
514 printf("%d %d %d",a,b,c);
515 break;
516 case OP_SHL:
517 printf("%d %d %d",a,b,c);
518 break;
519 case OP_SHR:
520 printf("%d %d %d",a,b,c);
521 break;
522 case OP_MMBIN:
523 printf("%d %d %d",a,b,c);
524 printf(COMMENT "%s",eventname(c));
525 break;
526 case OP_MMBINI:
527 printf("%d %d %d %d",a,sb,c,isk);
528 printf(COMMENT "%s",eventname(c));
529 if (isk) printf(" flip");
530 break;
531 case OP_MMBINK:
532 printf("%d %d %d %d",a,b,c,isk);
533 printf(COMMENT "%s ",eventname(c)); PrintConstant(f,b);
534 if (isk) printf(" flip");
535 break;
536 case OP_UNM:
537 printf("%d %d",a,b);
538 break;
539 case OP_BNOT:
540 printf("%d %d",a,b);
541 break;
542 case OP_NOT:
543 printf("%d %d",a,b);
544 break;
545 case OP_LEN:
546 printf("%d %d",a,b);
547 break;
548 case OP_CONCAT:
549 printf("%d %d",a,b);
550 break;
551 case OP_CLOSE:
552 printf("%d",a);
553 break;
554 case OP_TBC:
555 printf("%d",a);
556 break;
557 case OP_JMP:
558 printf("%d",GETARG_sJ(i));
559 printf(COMMENT "to %d",GETARG_sJ(i)+pc+2);
560 break;
561 case OP_EQ:
562 printf("%d %d %d",a,b,isk);
563 break;
564 case OP_LT:
565 printf("%d %d %d",a,b,isk);
566 break;
567 case OP_LE:
568 printf("%d %d %d",a,b,isk);
569 break;
570 case OP_EQK:
571 printf("%d %d %d",a,b,isk);
572 printf(COMMENT); PrintConstant(f,b);
573 break;
574 case OP_EQI:
575 printf("%d %d %d",a,sb,isk);
576 break;
577 case OP_LTI:
578 printf("%d %d %d",a,sb,isk);
579 break;
580 case OP_LEI:
581 printf("%d %d %d",a,sb,isk);
582 break;
583 case OP_GTI:
584 printf("%d %d %d",a,sb,isk);
585 break;
586 case OP_GEI:
587 printf("%d %d %d",a,sb,isk);
588 break;
589 case OP_TEST:
590 printf("%d %d",a,isk);
591 break;
592 case OP_TESTSET:
593 printf("%d %d %d",a,b,isk);
594 break;
595 case OP_CALL:
596 printf("%d %d %d",a,b,c);
597 printf(COMMENT);
598 if (b==0) printf("all in "); else printf("%d in ",b-1);
599 if (c==0) printf("all out"); else printf("%d out",c-1);
600 break;
601 case OP_TAILCALL:
602 printf("%d %d %d%s",a,b,c,ISK);
603 printf(COMMENT "%d in",b-1);
604 break;
605 case OP_RETURN:
606 printf("%d %d %d%s",a,b,c,ISK);
607 printf(COMMENT);
608 if (b==0) printf("all out"); else printf("%d out",b-1);
609 break;
610 case OP_RETURN0:
611 break;
612 case OP_RETURN1:
613 printf("%d",a);
614 break;
615 case OP_FORLOOP:
616 printf("%d %d",a,bx);
617 printf(COMMENT "to %d",pc-bx+2);
618 break;
619 case OP_FORPREP:
620 printf("%d %d",a,bx);
621 printf(COMMENT "exit to %d",pc+bx+3);
622 break;
623 case OP_TFORPREP:
624 printf("%d %d",a,bx);
625 printf(COMMENT "to %d",pc+bx+2);
626 break;
627 case OP_TFORCALL:
628 printf("%d %d",a,c);
629 break;
630 case OP_TFORLOOP:
631 printf("%d %d",a,bx);
632 printf(COMMENT "to %d",pc-bx+2);
633 break;
634 case OP_SETLIST:
635 printf("%d %d %d",a,b,c);
636 if (isk) printf(COMMENT "%d",c+EXTRAARGC);
637 break;
638 case OP_CLOSURE:
639 printf("%d %d",a,bx);
640 printf(COMMENT "%p",VOID(f->p[bx]));
641 break;
642 case OP_VARARG:
643 printf("%d %d",a,c);
644 printf(COMMENT);
645 if (c==0) printf("all out"); else printf("%d out",c-1);
646 break;
647 case OP_VARARGPREP:
648 printf("%d",a);
649 break;
650 case OP_EXTRAARG:
651 printf("%d",ax);
652 break;
653 #if 0
654 default:
655 printf("%d %d %d",a,b,c);
656 printf(COMMENT "not handled");
657 break;
658 #endif
659 }
660 printf("\n");
661 }
662 }
663
664
665 #define SS(x) ((x==1)?"":"s")
666 #define S(x) (int)(x),SS(x)
667
668 static void PrintHeader(const Proto* f)
669 {
670 const char* s=f->source ? getstr(f->source) : "=?";
671 if (*s=='@' || *s=='=')
672 s++;
673 else if (*s==LUA_SIGNATURE[0])
674 s="(bstring)";
675 else
676 s="(string)";
677 printf("\n%s <%s:%d,%d> (%d instruction%s at %p)\n",
678 (f->linedefined==0)?"main":"function",s,
679 f->linedefined,f->lastlinedefined,
680 S(f->sizecode),VOID(f));
681 printf("%d%s param%s, %d slot%s, %d upvalue%s, ",
682 (int)(f->numparams),f->is_vararg?"+":"",SS(f->numparams),
683 S(f->maxstacksize),S(f->sizeupvalues));
684 printf("%d local%s, %d constant%s, %d function%s\n",
685 S(f->sizelocvars),S(f->sizek),S(f->sizep));
686 }
687
688 static void PrintDebug(const Proto* f)
689 {
690 int i,n;
691 n=f->sizek;
692 printf("constants (%d) for %p:\n",n,VOID(f));
693 for (i=0; i<n; i++)
694 {
695 printf("\t%d\t",i);
696 PrintType(f,i);
697 PrintConstant(f,i);
698 printf("\n");
699 }
700 n=f->sizelocvars;
701 printf("locals (%d) for %p:\n",n,VOID(f));
702 for (i=0; i<n; i++)
703 {
704 printf("\t%d\t%s\t%d\t%d\n",
705 i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
706 }
707 n=f->sizeupvalues;
708 printf("upvalues (%d) for %p:\n",n,VOID(f));
709 for (i=0; i<n; i++)
710 {
711 printf("\t%d\t%s\t%d\t%d\n",
712 i,UPVALNAME(i),f->upvalues[i].instack,f->upvalues[i].idx);
713 }
714 }
715
716 static void PrintFunction(const Proto* f, int full)
717 {
718 int i,n=f->sizep;
719 PrintHeader(f);
720 PrintCode(f);
721 if (full) PrintDebug(f);
722 for (i=0; i<n; i++) PrintFunction(f->p[i],full);
723 }
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