Annotation of gforth/engine/main.c, revision 1.72
1.1 anton 1: /* command line interpretation, image loading etc. for Gforth
2:
3:
1.39 anton 4: Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
1.1 anton 5:
6: This file is part of Gforth.
7:
8: Gforth is free software; you can redistribute it and/or
9: modify it under the terms of the GNU General Public License
10: as published by the Free Software Foundation; either version 2
11: of the License, or (at your option) any later version.
12:
13: This program is distributed in the hope that it will be useful,
14: but WITHOUT ANY WARRANTY; without even the implied warranty of
15: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: GNU General Public License for more details.
17:
18: You should have received a copy of the GNU General Public License
19: along with this program; if not, write to the Free Software
1.40 anton 20: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1 anton 21: */
22:
23: #include "config.h"
24: #include <errno.h>
25: #include <ctype.h>
26: #include <stdio.h>
1.2 pazsan 27: #include <unistd.h>
1.1 anton 28: #include <string.h>
29: #include <math.h>
30: #include <sys/types.h>
1.32 pazsan 31: #ifndef STANDALONE
1.1 anton 32: #include <sys/stat.h>
1.32 pazsan 33: #endif
1.1 anton 34: #include <fcntl.h>
35: #include <assert.h>
36: #include <stdlib.h>
1.11 pazsan 37: #ifndef STANDALONE
1.1 anton 38: #if HAVE_SYS_MMAN_H
39: #include <sys/mman.h>
40: #endif
1.11 pazsan 41: #endif
1.1 anton 42: #include "forth.h"
43: #include "io.h"
44: #include "getopt.h"
1.11 pazsan 45: #ifdef STANDALONE
46: #include <systypes.h>
47: #endif
1.1 anton 48:
49: #define PRIM_VERSION 1
50: /* increment this whenever the primitives change in an incompatible way */
51:
1.14 pazsan 52: #ifndef DEFAULTPATH
1.39 anton 53: # define DEFAULTPATH "."
1.14 pazsan 54: #endif
55:
1.1 anton 56: #ifdef MSDOS
57: jmp_buf throw_jmp_buf;
58: #endif
59:
1.56 anton 60: #if defined(DOUBLY_INDIRECT)
61: # define CFA(n) ({Cell _n = (n); ((Cell)(((_n & 0x4000) ? symbols : xts)+(_n&~0x4000UL)));})
1.1 anton 62: #else
1.56 anton 63: # define CFA(n) ((Cell)(symbols+((n)&~0x4000UL)))
1.1 anton 64: #endif
65:
66: #define maxaligned(n) (typeof(n))((((Cell)n)+sizeof(Float)-1)&-sizeof(Float))
67:
68: static UCell dictsize=0;
69: static UCell dsize=0;
70: static UCell rsize=0;
71: static UCell fsize=0;
72: static UCell lsize=0;
73: int offset_image=0;
1.4 anton 74: int die_on_signal=0;
1.13 pazsan 75: #ifndef INCLUDE_IMAGE
1.1 anton 76: static int clear_dictionary=0;
1.24 anton 77: UCell pagesize=1;
1.22 pazsan 78: char *progname;
79: #else
80: char *progname = "gforth";
81: int optind = 1;
1.13 pazsan 82: #endif
1.31 pazsan 83:
1.48 anton 84: Address code_area=0;
85: Address code_here=0; /* does for code-area what HERE does for the dictionary */
1.65 anton 86: Address start_flush=0; /* start of unflushed code */
1.48 anton 87:
1.60 anton 88: static int no_super=0; /* true if compile_prim should not fuse prims */
1.66 anton 89: /* --no-dynamic by default on gcc versions >=3.1 (it works with 3.0.4,
90: but not with 3.2) */
91: #if (__GNUC__>2 && __GNUC_MINOR__>=1)
1.64 anton 92: static int no_dynamic=1; /* true if compile_prim should not generate code */
1.66 anton 93: #else
94: static int no_dynamic=0; /* true if compile_prim should not generate code */
95: #endif
1.60 anton 96:
1.30 pazsan 97: #ifdef HAS_DEBUG
1.68 anton 98: int debug=0;
1.31 pazsan 99: #else
100: # define perror(x...)
101: # define fprintf(x...)
1.30 pazsan 102: #endif
1.31 pazsan 103:
1.24 anton 104: ImageHeader *gforth_header;
1.43 anton 105: Label *vm_prims;
1.53 anton 106: #ifdef DOUBLY_INDIRECT
107: Label *xts; /* same content as vm_prims, but should only be used for xts */
108: #endif
1.1 anton 109:
1.30 pazsan 110: #ifdef MEMCMP_AS_SUBROUTINE
111: int gforth_memcmp(const char * s1, const char * s2, size_t n)
112: {
113: return memcmp(s1, s2, n);
114: }
115: #endif
116:
1.1 anton 117: /* image file format:
1.15 pazsan 118: * "#! binary-path -i\n" (e.g., "#! /usr/local/bin/gforth-0.4.0 -i\n")
1.1 anton 119: * padding to a multiple of 8
1.15 pazsan 120: * magic: "Gforth2x" means format 0.4,
121: * where x is a byte with
122: * bit 7: reserved = 0
123: * bit 6:5: address unit size 2^n octets
124: * bit 4:3: character size 2^n octets
125: * bit 2:1: cell size 2^n octets
126: * bit 0: endian, big=0, little=1.
127: * The magic are always 8 octets, no matter what the native AU/character size is
1.1 anton 128: * padding to max alignment (no padding necessary on current machines)
1.24 anton 129: * ImageHeader structure (see forth.h)
1.1 anton 130: * data (size in ImageHeader.image_size)
131: * tags ((if relocatable, 1 bit/data cell)
132: *
133: * tag==1 means that the corresponding word is an address;
134: * If the word is >=0, the address is within the image;
135: * addresses within the image are given relative to the start of the image.
136: * If the word =-1 (CF_NIL), the address is NIL,
137: * If the word is <CF_NIL and >CF(DODOES), it's a CFA (:, Create, ...)
138: * If the word =CF(DODOES), it's a DOES> CFA
139: * If the word =CF(DOESJUMP), it's a DOES JUMP (2 Cells after DOES>,
140: * possibly containing a jump to dodoes)
1.51 anton 141: * If the word is <CF(DOESJUMP) and bit 14 is set, it's the xt of a primitive
142: * If the word is <CF(DOESJUMP) and bit 14 is clear,
143: * it's the threaded code of a primitive
1.1 anton 144: */
145:
1.46 jwilke 146: void relocate(Cell *image, const char *bitstring,
147: int size, int base, Label symbols[])
1.1 anton 148: {
1.16 pazsan 149: int i=0, j, k, steps=(size/sizeof(Cell))/RELINFOBITS;
1.11 pazsan 150: Cell token;
1.1 anton 151: char bits;
1.37 anton 152: Cell max_symbols;
1.46 jwilke 153: /*
154: * A virtial start address that's the real start address minus
155: * the one in the image
156: */
1.45 jwilke 157: Cell *start = (Cell * ) (((void *) image) - ((void *) base));
1.1 anton 158:
1.46 jwilke 159:
160: /* printf("relocating to %x[%x] start=%x base=%x\n", image, size, start, base); */
1.37 anton 161:
162: for (max_symbols=DOESJUMP+1; symbols[max_symbols]!=0; max_symbols++)
163: ;
1.47 anton 164: max_symbols--;
1.35 pazsan 165: size/=sizeof(Cell);
166:
1.31 pazsan 167: for(k=0; k<=steps; k++) {
1.13 pazsan 168: for(j=0, bits=bitstring[k]; j<RELINFOBITS; j++, i++, bits<<=1) {
1.1 anton 169: /* fprintf(stderr,"relocate: image[%d]\n", i);*/
1.35 pazsan 170: if((i < size) && (bits & (1U << (RELINFOBITS-1)))) {
171: /* fprintf(stderr,"relocate: image[%d]=%d of %d\n", i, image[i], size/sizeof(Cell)); */
1.45 jwilke 172: token=image[i];
173: if(token<0)
1.55 anton 174: switch(token|0x4000)
1.1 anton 175: {
176: case CF_NIL : image[i]=0; break;
177: #if !defined(DOUBLY_INDIRECT)
178: case CF(DOCOL) :
179: case CF(DOVAR) :
180: case CF(DOCON) :
181: case CF(DOUSER) :
182: case CF(DODEFER) :
1.11 pazsan 183: case CF(DOFIELD) : MAKE_CF(image+i,symbols[CF(token)]); break;
1.1 anton 184: case CF(DOESJUMP): MAKE_DOES_HANDLER(image+i); break;
185: #endif /* !defined(DOUBLY_INDIRECT) */
186: case CF(DODOES) :
1.45 jwilke 187: MAKE_DOES_CF(image+i,(Xt *)(image[i+1]+((Cell)start)));
1.1 anton 188: break;
189: default :
1.56 anton 190: /* printf("Code field generation image[%x]:=CFA(%x)\n",
1.1 anton 191: i, CF(image[i])); */
1.55 anton 192: if (CF((token | 0x4000))<max_symbols) {
1.56 anton 193: image[i]=(Cell)CFA(CF(token));
194: #ifdef DIRECT_THREADED
195: if ((token & 0x4000) == 0) /* threade code, no CFA */
1.70 anton 196: compile_prim1(&image[i]);
1.56 anton 197: #endif
1.55 anton 198: } else
1.37 anton 199: fprintf(stderr,"Primitive %d used in this image at $%lx is not implemented by this\n engine (%s); executing this code will crash.\n",CF(token),(long)&image[i],VERSION);
1.1 anton 200: }
1.46 jwilke 201: else {
1.45 jwilke 202: // if base is > 0: 0 is a null reference so don't adjust
203: if (token>=base) {
204: image[i]+=(Cell)start;
205: }
1.46 jwilke 206: }
1.1 anton 207: }
208: }
1.31 pazsan 209: }
1.70 anton 210: finish_code();
1.26 jwilke 211: ((ImageHeader*)(image))->base = (Address) image;
1.1 anton 212: }
213:
214: UCell checksum(Label symbols[])
215: {
216: UCell r=PRIM_VERSION;
217: Cell i;
218:
219: for (i=DOCOL; i<=DOESJUMP; i++) {
220: r ^= (UCell)(symbols[i]);
221: r = (r << 5) | (r >> (8*sizeof(Cell)-5));
222: }
223: #ifdef DIRECT_THREADED
224: /* we have to consider all the primitives */
225: for (; symbols[i]!=(Label)0; i++) {
226: r ^= (UCell)(symbols[i]);
227: r = (r << 5) | (r >> (8*sizeof(Cell)-5));
228: }
229: #else
230: /* in indirect threaded code all primitives are accessed through the
231: symbols table, so we just have to put the base address of symbols
232: in the checksum */
233: r ^= (UCell)symbols;
234: #endif
235: return r;
236: }
237:
1.3 anton 238: Address verbose_malloc(Cell size)
239: {
240: Address r;
241: /* leave a little room (64B) for stack underflows */
242: if ((r = malloc(size+64))==NULL) {
243: perror(progname);
244: exit(1);
245: }
246: r = (Address)((((Cell)r)+(sizeof(Float)-1))&(-sizeof(Float)));
247: if (debug)
248: fprintf(stderr, "malloc succeeds, address=$%lx\n", (long)r);
249: return r;
250: }
251:
1.33 anton 252: static Address next_address=0;
253: void after_alloc(Address r, Cell size)
254: {
255: if (r != (Address)-1) {
256: if (debug)
257: fprintf(stderr, "success, address=$%lx\n", (long) r);
258: if (pagesize != 1)
259: next_address = (Address)(((((Cell)r)+size-1)&-pagesize)+2*pagesize); /* leave one page unmapped */
260: } else {
261: if (debug)
262: fprintf(stderr, "failed: %s\n", strerror(errno));
263: }
264: }
265:
1.34 anton 266: #ifndef MAP_FAILED
267: #define MAP_FAILED ((Address) -1)
268: #endif
269: #ifndef MAP_FILE
270: # define MAP_FILE 0
271: #endif
272: #ifndef MAP_PRIVATE
273: # define MAP_PRIVATE 0
274: #endif
275:
276: #if defined(HAVE_MMAP)
277: static Address alloc_mmap(Cell size)
1.1 anton 278: {
279: Address r;
280:
281: #if defined(MAP_ANON)
282: if (debug)
283: fprintf(stderr,"try mmap($%lx, $%lx, ..., MAP_ANON, ...); ", (long)next_address, (long)size);
1.34 anton 284: r = mmap(next_address, size, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0);
1.1 anton 285: #else /* !defined(MAP_ANON) */
1.17 anton 286: /* Ultrix (at least) does not define MAP_FILE and MAP_PRIVATE (both are
287: apparently defaults) */
1.1 anton 288: static int dev_zero=-1;
289:
290: if (dev_zero == -1)
291: dev_zero = open("/dev/zero", O_RDONLY);
292: if (dev_zero == -1) {
1.34 anton 293: r = MAP_FAILED;
1.1 anton 294: if (debug)
295: fprintf(stderr, "open(\"/dev/zero\"...) failed (%s), no mmap; ",
296: strerror(errno));
297: } else {
298: if (debug)
299: fprintf(stderr,"try mmap($%lx, $%lx, ..., MAP_FILE, dev_zero, ...); ", (long)next_address, (long)size);
300: r=mmap(next_address, size, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_FILE|MAP_PRIVATE, dev_zero, 0);
301: }
302: #endif /* !defined(MAP_ANON) */
1.34 anton 303: after_alloc(r, size);
304: return r;
305: }
306: #endif
307:
308: Address my_alloc(Cell size)
309: {
310: #if HAVE_MMAP
311: Address r;
312:
313: r=alloc_mmap(size);
314: if (r!=MAP_FAILED)
1.1 anton 315: return r;
316: #endif /* HAVE_MMAP */
1.3 anton 317: /* use malloc as fallback */
318: return verbose_malloc(size);
1.1 anton 319: }
320:
1.34 anton 321: Address dict_alloc_read(FILE *file, Cell imagesize, Cell dictsize, Cell offset)
1.33 anton 322: {
1.34 anton 323: Address image = MAP_FAILED;
1.33 anton 324:
1.56 anton 325: #if defined(HAVE_MMAP)
1.33 anton 326: if (offset==0) {
1.34 anton 327: image=alloc_mmap(dictsize);
1.33 anton 328: if (debug)
1.34 anton 329: fprintf(stderr,"try mmap($%lx, $%lx, ..., MAP_FIXED|MAP_FILE, imagefile, 0); ", (long)image, (long)imagesize);
330: image = mmap(image, imagesize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_FIXED|MAP_FILE|MAP_PRIVATE, fileno(file), 0);
331: after_alloc(image,dictsize);
1.33 anton 332: }
1.56 anton 333: #endif /* defined(HAVE_MMAP) */
1.34 anton 334: if (image == MAP_FAILED) {
1.56 anton 335: image = my_alloc(dictsize+offset)+offset;
1.33 anton 336: rewind(file); /* fseek(imagefile,0L,SEEK_SET); */
1.34 anton 337: fread(image, 1, imagesize, file);
1.33 anton 338: }
339: return image;
340: }
341:
1.10 pazsan 342: void set_stack_sizes(ImageHeader * header)
343: {
344: if (dictsize==0)
345: dictsize = header->dict_size;
346: if (dsize==0)
347: dsize = header->data_stack_size;
348: if (rsize==0)
349: rsize = header->return_stack_size;
350: if (fsize==0)
351: fsize = header->fp_stack_size;
352: if (lsize==0)
353: lsize = header->locals_stack_size;
354: dictsize=maxaligned(dictsize);
355: dsize=maxaligned(dsize);
356: rsize=maxaligned(rsize);
357: lsize=maxaligned(lsize);
358: fsize=maxaligned(fsize);
359: }
360:
361: void alloc_stacks(ImageHeader * header)
362: {
363: header->dict_size=dictsize;
364: header->data_stack_size=dsize;
365: header->fp_stack_size=fsize;
366: header->return_stack_size=rsize;
367: header->locals_stack_size=lsize;
368:
369: header->data_stack_base=my_alloc(dsize);
370: header->fp_stack_base=my_alloc(fsize);
371: header->return_stack_base=my_alloc(rsize);
372: header->locals_stack_base=my_alloc(lsize);
1.65 anton 373: code_here = start_flush = code_area = my_alloc(dictsize);
1.10 pazsan 374: }
375:
1.44 pazsan 376: #warning You can ignore the warnings about clobbered variables in go_forth
1.11 pazsan 377: int go_forth(Address image, int stack, Cell *entries)
378: {
1.38 anton 379: volatile ImageHeader *image_header = (ImageHeader *)image;
1.18 anton 380: Cell *sp0=(Cell*)(image_header->data_stack_base + dsize);
1.44 pazsan 381: Cell *rp0=(Cell *)(image_header->return_stack_base + rsize);
1.18 anton 382: Float *fp0=(Float *)(image_header->fp_stack_base + fsize);
1.44 pazsan 383: #ifdef GFORTH_DEBUGGING
1.38 anton 384: volatile Cell *orig_rp0=rp0;
1.44 pazsan 385: #endif
1.18 anton 386: Address lp0=image_header->locals_stack_base + lsize;
387: Xt *ip0=(Xt *)(image_header->boot_entry);
1.13 pazsan 388: #ifdef SYSSIGNALS
1.11 pazsan 389: int throw_code;
1.13 pazsan 390: #endif
1.11 pazsan 391:
392: /* ensure that the cached elements (if any) are accessible */
1.41 anton 393: IF_spTOS(sp0--);
394: IF_fpTOS(fp0--);
1.11 pazsan 395:
396: for(;stack>0;stack--)
1.18 anton 397: *--sp0=entries[stack-1];
1.11 pazsan 398:
1.30 pazsan 399: #ifdef SYSSIGNALS
1.11 pazsan 400: get_winsize();
401:
402: install_signal_handlers(); /* right place? */
403:
404: if ((throw_code=setjmp(throw_jmp_buf))) {
405: static Cell signal_data_stack[8];
406: static Cell signal_return_stack[8];
407: static Float signal_fp_stack[1];
1.13 pazsan 408:
1.11 pazsan 409: signal_data_stack[7]=throw_code;
1.18 anton 410:
411: #ifdef GFORTH_DEBUGGING
1.38 anton 412: /* fprintf(stderr,"\nrp=%ld\n",(long)rp); */
413: if (rp <= orig_rp0 && rp > (Cell *)(image_header->return_stack_base+5)) {
1.18 anton 414: /* no rstack overflow or underflow */
415: rp0 = rp;
1.63 anton 416: *--rp0 = (Cell)saved_ip;
1.18 anton 417: }
418: else /* I love non-syntactic ifdefs :-) */
419: #endif
420: rp0 = signal_return_stack+8;
1.25 anton 421: /* fprintf(stderr, "rp=$%x\n",rp0);*/
1.11 pazsan 422:
1.33 anton 423: return((int)(Cell)engine(image_header->throw_entry, signal_data_stack+7,
1.18 anton 424: rp0, signal_fp_stack, 0));
1.11 pazsan 425: }
1.13 pazsan 426: #endif
1.11 pazsan 427:
1.33 anton 428: return((int)(Cell)engine(ip0,sp0,rp0,fp0,lp0));
1.11 pazsan 429: }
430:
1.21 anton 431:
1.30 pazsan 432: #ifndef INCLUDE_IMAGE
1.21 anton 433: void print_sizes(Cell sizebyte)
434: /* print size information */
435: {
436: static char* endianstring[]= { " big","little" };
437:
438: fprintf(stderr,"%s endian, cell=%d bytes, char=%d bytes, au=%d bytes\n",
439: endianstring[sizebyte & 1],
440: 1 << ((sizebyte >> 1) & 3),
441: 1 << ((sizebyte >> 3) & 3),
442: 1 << ((sizebyte >> 5) & 3));
443: }
444:
1.70 anton 445: #define MAX_IMMARGS 2
446:
1.69 anton 447: #ifndef NO_DYNAMIC
1.47 anton 448: typedef struct {
449: Label start;
450: Cell length; /* excluding the jump */
1.70 anton 451: char superend; /* true if primitive ends superinstruction, i.e.,
1.47 anton 452: unconditional branch, execute, etc. */
1.70 anton 453: Cell nimmargs;
454: struct immarg {
455: Cell offset; /* offset of immarg within prim */
456: char rel; /* true if immarg is relative */
457: } immargs[MAX_IMMARGS];
1.47 anton 458: } PrimInfo;
459:
460: PrimInfo *priminfos;
1.69 anton 461: #endif /* defined(NO_DYNAMIC) */
1.48 anton 462: Cell npriminfos=0;
1.47 anton 463:
464: void check_prims(Label symbols1[])
465: {
466: int i;
1.70 anton 467: Label *symbols2, *symbols3, *ends1;
1.49 anton 468: static char superend[]={
1.48 anton 469: #include "prim_superend.i"
470: };
1.47 anton 471:
1.66 anton 472: if (debug)
473: #ifdef __VERSION__
474: fprintf(stderr, "Compiled with gcc-" __VERSION__ "\n");
475: #else
476: #define xstr(s) str(s)
477: #define str(s) #s
478: fprintf(stderr, "Compiled with gcc-" xstr(__GNUC__) "." xstr(__GNUC_MINOR__) "\n");
479: #endif
1.47 anton 480: for (i=DOESJUMP+1; symbols1[i+1]!=0; i++)
481: ;
1.55 anton 482: npriminfos = i;
1.70 anton 483:
484: #ifndef NO_DYNAMIC
1.66 anton 485: if (no_dynamic)
486: return;
1.55 anton 487: symbols2=engine2(0,0,0,0,0);
1.70 anton 488: #if NO_IP
489: symbols3=engine3(0,0,0,0,0);
490: #else
491: symbols3=symbols1;
492: #endif
493: ends1 = symbols1+i+1-DOESJUMP;
1.47 anton 494: priminfos = calloc(i,sizeof(PrimInfo));
495: for (i=DOESJUMP+1; symbols1[i+1]!=0; i++) {
1.70 anton 496: int prim_len = ends1[i]-symbols1[i];
1.47 anton 497: PrimInfo *pi=&priminfos[i];
1.70 anton 498: int j=0;
499: char *s1 = (char *)symbols1[i];
500: char *s2 = (char *)symbols2[i];
501: char *s3 = (char *)symbols3[i];
502:
503: pi->start = s1;
504: pi->superend = superend[i-DOESJUMP-1]|no_super;
505: if (pi->superend)
506: pi->length = symbols1[i+1]-symbols1[i];
507: else
508: pi->length = prim_len;
509: pi->nimmargs = 0;
510: if (debug)
511: fprintf(stderr, "Prim %3d @ %p %p %p, length=%3d superend=%1d",
512: i, s1, s2, s3, prim_len, pi->superend);
513: assert(prim_len>=0);
514: while (j<prim_len) {
515: if (s1[j]==s3[j]) {
516: if (s1[j] != s2[j]) {
517: pi->start = NULL; /* not relocatable */
518: if (debug)
519: fprintf(stderr,"\n non_reloc: engine1!=engine2 offset %3d",j);
520: break;
521: }
522: j++;
523: } else {
524: struct immarg *ia=&pi->immargs[pi->nimmargs];
525:
526: pi->nimmargs++;
527: ia->offset=j;
528: if ((~*(Cell *)&(s1[j]))==*(Cell *)&(s3[j])) {
529: ia->rel=0;
530: if (debug)
531: fprintf(stderr,"\n absolute immarg: offset %3d",j);
532: } else if ((&(s1[j]))+(*(Cell *)&(s1[j]))+4 ==
533: symbols1[DOESJUMP+1]) {
534: ia->rel=1;
535: if (debug)
536: fprintf(stderr,"\n relative immarg: offset %3d",j);
537: } else {
538: pi->start = NULL; /* not relocatable */
539: if (debug)
540: fprintf(stderr,"\n non_reloc: engine1!=engine3 offset %3d",j);
541: break;
542: }
543: j+=4;
1.47 anton 544: }
545: }
1.70 anton 546: if (debug)
547: fprintf(stderr,"\n");
548: }
549: #endif
550: }
551:
552: #ifdef NO_IP
553: int nbranchinfos=0;
554:
555: struct branchinfo {
556: Label *targetptr; /* *(bi->targetptr) is the target */
557: Cell *addressptr; /* store the target here */
558: } branchinfos[100000];
559:
560: int ndoesexecinfos=0;
561: struct doesexecinfo {
562: int branchinfo; /* fix the targetptr of branchinfos[...->branchinfo] */
563: Cell *xt; /* cfa of word whose does-code needs calling */
564: } doesexecinfos[10000];
565:
566: #define N_EXECUTE 10
567: #define N_PERFORM 11
568: #define N_LIT_PERFORM 337
569: #define N_CALL 333
570: #define N_DOES_EXEC 339
571: #define N_LIT 9
572: #define N_CALL2 362
573: #define N_ABRANCH 341
574: #define N_SET_NEXT_CODE 361
575:
576: void set_rel_target(Cell *source, Label target)
577: {
578: *source = ((Cell)target)-(((Cell)source)+4);
579: }
580:
581: void register_branchinfo(Label source, Cell targetptr)
582: {
583: struct branchinfo *bi = &(branchinfos[nbranchinfos]);
584: bi->targetptr = (Label *)targetptr;
585: bi->addressptr = (Cell *)source;
586: nbranchinfos++;
587: }
588:
589: Cell *compile_prim1arg(Cell p)
590: {
591: int l = priminfos[p].length;
592: Address old_code_here=code_here;
593:
594: memcpy(code_here, vm_prims[p], l);
595: code_here+=l;
596: return (Cell*)(old_code_here+priminfos[p].immargs[0].offset);
597: }
598:
599: Cell *compile_call2(Cell targetptr)
600: {
601: Cell *next_code_target;
602: PrimInfo *pi = &priminfos[N_CALL2];
603:
604: memcpy(code_here, pi->start, pi->length);
605: next_code_target = (Cell *)(code_here + pi->immargs[0].offset);
606: register_branchinfo(code_here + pi->immargs[1].offset, targetptr);
607: code_here += pi->length;
608: return next_code_target;
609: }
610: #endif
611:
612: void finish_code(void)
613: {
614: #ifdef NO_IP
615: Cell i;
616:
617: compile_prim1(NULL);
618: for (i=0; i<ndoesexecinfos; i++) {
619: struct doesexecinfo *dei = &doesexecinfos[i];
620: branchinfos[dei->branchinfo].targetptr = DOES_CODE1((dei->xt));
621: }
622: ndoesexecinfos = 0;
623: for (i=0; i<nbranchinfos; i++) {
624: struct branchinfo *bi=&branchinfos[i];
625: set_rel_target(bi->addressptr, *(bi->targetptr));
626: }
627: nbranchinfos = 0;
628: FLUSH_ICACHE(start_flush, code_here-start_flush);
629: start_flush=code_here;
1.48 anton 630: #endif
631: }
632:
1.70 anton 633: void compile_prim1(Cell *start)
1.48 anton 634: {
1.61 anton 635: #if defined(DOUBLY_INDIRECT)
1.70 anton 636: Label prim=(Label)*start;
1.54 anton 637: if (prim<((Label)(xts+DOESJUMP)) || prim>((Label)(xts+npriminfos))) {
638: fprintf(stderr,"compile_prim encountered xt %p\n", prim);
1.70 anton 639: *start=(Cell)prim;
640: return;
641: } else {
642: *start = prim-((Label)xts)+((Label)vm_prims);
643: return;
644: }
645: #elif defined(NO_IP)
646: static Cell *last_start=NULL;
647: static Xt last_prim=NULL;
648: /* delay work by one call in order to get relocated immargs */
649:
650: if (last_start) {
651: unsigned i = last_prim-vm_prims;
652: PrimInfo *pi=&priminfos[i];
653: Cell *next_code_target=NULL;
654:
655: assert(i<npriminfos);
656: if (i==N_EXECUTE||i==N_PERFORM||i==N_LIT_PERFORM) {
657: next_code_target = compile_prim1arg(N_SET_NEXT_CODE);
658: }
659: if (i==N_CALL) {
660: next_code_target = compile_call2(last_start[1]);
661: } else if (i==N_DOES_EXEC) {
662: struct doesexecinfo *dei = &doesexecinfos[ndoesexecinfos++];
663: *compile_prim1arg(N_LIT) = (Cell)PFA(last_start[1]);
664: /* we cannot determine the callee now (last_start[1] may be a
665: forward reference), so just register an arbitrary target, and
666: register in dei that we need to fix this before resolving
667: branches */
668: dei->branchinfo = nbranchinfos;
669: dei->xt = (Cell *)(last_start[1]);
670: next_code_target = compile_call2(NULL);
671: } else if (pi->start == NULL) { /* non-reloc */
672: next_code_target = compile_prim1arg(N_SET_NEXT_CODE);
673: set_rel_target(compile_prim1arg(N_ABRANCH),*(Xt)last_prim);
674: } else {
675: unsigned j;
676:
677: memcpy(code_here, *last_prim, pi->length);
678: for (j=0; j<pi->nimmargs; j++) {
679: struct immarg *ia = &(pi->immargs[j]);
680: Cell argval = last_start[pi->nimmargs - j]; /* !! specific to prims */
681: if (ia->rel) { /* !! assumption: relative refs are branches */
682: register_branchinfo(code_here + ia->offset, argval);
683: } else /* plain argument */
684: *(Cell *)(code_here + ia->offset) = argval;
685: }
686: code_here += pi->length;
687: }
688: if (next_code_target!=NULL)
689: *next_code_target = (Cell)code_here;
690: }
691: if (start) {
692: last_prim = (Xt)*start;
693: *start = (Cell)code_here;
694: }
695: last_start = start;
696: return;
697: #elif !defined(NO_DYNAMIC)
698: Label prim=(Label)*start;
1.58 anton 699: unsigned i;
1.48 anton 700: Address old_code_here=code_here;
701: static Address last_jump=0;
702:
1.58 anton 703: i = ((Xt)prim)-vm_prims;
1.56 anton 704: prim = *(Xt)prim;
1.70 anton 705: if (no_dynamic) {
706: *start = (Cell)prim;
707: return;
708: }
1.58 anton 709: if (i>=npriminfos || priminfos[i].start == 0) { /* not a relocatable prim */
710: if (last_jump) { /* make sure the last sequence is complete */
711: memcpy(code_here, last_jump, IND_JUMP_LENGTH);
712: code_here += IND_JUMP_LENGTH;
713: last_jump = 0;
1.65 anton 714: FLUSH_ICACHE(start_flush, code_here-start_flush);
715: start_flush=code_here;
1.48 anton 716: }
1.70 anton 717: *start = (Cell)prim;
718: return;
1.47 anton 719: }
1.58 anton 720: assert(priminfos[i].start = prim);
1.50 anton 721: #ifdef ALIGN_CODE
722: ALIGN_CODE;
723: #endif
1.48 anton 724: memcpy(code_here, (Address)prim, priminfos[i].length);
725: code_here += priminfos[i].length;
1.70 anton 726: last_jump = (priminfos[i].superend) ? 0 : (prim+priminfos[i].length);
1.65 anton 727: if (last_jump == 0) {
728: FLUSH_ICACHE(start_flush, code_here-start_flush);
729: start_flush=code_here;
730: }
1.70 anton 731: *start = (Cell)old_code_here;
732: return;
1.61 anton 733: #else /* !defined(DOUBLY_INDIRECT), no code replication */
1.70 anton 734: Label prim=(Label)*start;
1.61 anton 735: #if !defined(INDIRECT_THREADED)
1.56 anton 736: prim = *(Xt)prim;
1.61 anton 737: #endif
1.70 anton 738: *start = (Cell)prim;
739: return;
1.54 anton 740: #endif /* !defined(DOUBLY_INDIRECT) */
1.70 anton 741: }
742:
743: Label compile_prim(Label prim)
744: {
745: Cell x=(Cell)prim;
746: compile_prim1(&x);
747: return (Label)x;
1.47 anton 748: }
749:
1.69 anton 750: #if defined(PRINT_SUPER_LENGTHS) && !defined(NO_DYNAMIC)
1.59 anton 751: Cell prim_length(Cell prim)
752: {
753: return priminfos[prim+DOESJUMP+1].length;
754: }
755: #endif
756:
1.1 anton 757: Address loader(FILE *imagefile, char* filename)
758: /* returns the address of the image proper (after the preamble) */
759: {
760: ImageHeader header;
761: Address image;
762: Address imp; /* image+preamble */
1.17 anton 763: Char magic[8];
764: char magic7; /* size byte of magic number */
1.1 anton 765: Cell preamblesize=0;
1.6 pazsan 766: Cell data_offset = offset_image ? 56*sizeof(Cell) : 0;
1.1 anton 767: UCell check_sum;
1.15 pazsan 768: Cell ausize = ((RELINFOBITS == 8) ? 0 :
769: (RELINFOBITS == 16) ? 1 :
770: (RELINFOBITS == 32) ? 2 : 3);
771: Cell charsize = ((sizeof(Char) == 1) ? 0 :
772: (sizeof(Char) == 2) ? 1 :
773: (sizeof(Char) == 4) ? 2 : 3) + ausize;
774: Cell cellsize = ((sizeof(Cell) == 1) ? 0 :
775: (sizeof(Cell) == 2) ? 1 :
776: (sizeof(Cell) == 4) ? 2 : 3) + ausize;
1.21 anton 777: Cell sizebyte = (ausize << 5) + (charsize << 3) + (cellsize << 1) +
778: #ifdef WORDS_BIGENDIAN
779: 0
780: #else
781: 1
782: #endif
783: ;
1.1 anton 784:
1.43 anton 785: vm_prims = engine(0,0,0,0,0);
1.47 anton 786: check_prims(vm_prims);
1.1 anton 787: #ifndef DOUBLY_INDIRECT
1.59 anton 788: #ifdef PRINT_SUPER_LENGTHS
789: print_super_lengths();
790: #endif
1.43 anton 791: check_sum = checksum(vm_prims);
1.1 anton 792: #else /* defined(DOUBLY_INDIRECT) */
1.43 anton 793: check_sum = (UCell)vm_prims;
1.1 anton 794: #endif /* defined(DOUBLY_INDIRECT) */
1.10 pazsan 795:
796: do {
797: if(fread(magic,sizeof(Char),8,imagefile) < 8) {
1.15 pazsan 798: fprintf(stderr,"%s: image %s doesn't seem to be a Gforth (>=0.4) image.\n",
1.10 pazsan 799: progname, filename);
800: exit(1);
1.1 anton 801: }
1.10 pazsan 802: preamblesize+=8;
1.15 pazsan 803: } while(memcmp(magic,"Gforth2",7));
1.17 anton 804: magic7 = magic[7];
1.1 anton 805: if (debug) {
1.17 anton 806: magic[7]='\0';
1.21 anton 807: fprintf(stderr,"Magic found: %s ", magic);
808: print_sizes(magic7);
1.1 anton 809: }
810:
1.21 anton 811: if (magic7 != sizebyte)
812: {
813: fprintf(stderr,"This image is: ");
814: print_sizes(magic7);
815: fprintf(stderr,"whereas the machine is ");
816: print_sizes(sizebyte);
1.1 anton 817: exit(-2);
818: };
819:
820: fread((void *)&header,sizeof(ImageHeader),1,imagefile);
1.10 pazsan 821:
822: set_stack_sizes(&header);
1.1 anton 823:
824: #if HAVE_GETPAGESIZE
825: pagesize=getpagesize(); /* Linux/GNU libc offers this */
826: #elif HAVE_SYSCONF && defined(_SC_PAGESIZE)
827: pagesize=sysconf(_SC_PAGESIZE); /* POSIX.4 */
828: #elif PAGESIZE
829: pagesize=PAGESIZE; /* in limits.h according to Gallmeister's POSIX.4 book */
830: #endif
831: if (debug)
1.5 jwilke 832: fprintf(stderr,"pagesize=%ld\n",(unsigned long) pagesize);
1.1 anton 833:
1.34 anton 834: image = dict_alloc_read(imagefile, preamblesize+header.image_size,
835: preamblesize+dictsize, data_offset);
1.33 anton 836: imp=image+preamblesize;
1.57 anton 837: alloc_stacks((ImageHeader *)imp);
1.1 anton 838: if (clear_dictionary)
1.33 anton 839: memset(imp+header.image_size, 0, dictsize-header.image_size);
1.46 jwilke 840: if(header.base==0 || header.base == 0x100) {
1.1 anton 841: Cell reloc_size=((header.image_size-1)/sizeof(Cell))/8+1;
842: char reloc_bits[reloc_size];
1.33 anton 843: fseek(imagefile, preamblesize+header.image_size, SEEK_SET);
1.10 pazsan 844: fread(reloc_bits, 1, reloc_size, imagefile);
1.45 jwilke 845: relocate((Cell *)imp, reloc_bits, header.image_size, header.base, vm_prims);
1.1 anton 846: #if 0
847: { /* let's see what the relocator did */
848: FILE *snapshot=fopen("snapshot.fi","wb");
849: fwrite(image,1,imagesize,snapshot);
850: fclose(snapshot);
851: }
852: #endif
1.46 jwilke 853: }
854: else if(header.base!=imp) {
855: fprintf(stderr,"%s: Cannot load nonrelocatable image (compiled for address $%lx) at address $%lx\n",
856: progname, (unsigned long)header.base, (unsigned long)imp);
857: exit(1);
1.1 anton 858: }
859: if (header.checksum==0)
860: ((ImageHeader *)imp)->checksum=check_sum;
861: else if (header.checksum != check_sum) {
862: fprintf(stderr,"%s: Checksum of image ($%lx) does not match the executable ($%lx)\n",
863: progname, (unsigned long)(header.checksum),(unsigned long)check_sum);
864: exit(1);
865: }
1.53 anton 866: #ifdef DOUBLY_INDIRECT
867: ((ImageHeader *)imp)->xt_base = xts;
868: #endif
1.1 anton 869: fclose(imagefile);
870:
1.56 anton 871: /* unnecessary, except maybe for CODE words */
872: /* FLUSH_ICACHE(imp, header.image_size);*/
1.1 anton 873:
874: return imp;
875: }
876:
1.72 ! anton 877: /* pointer to last '/' or '\' in file, 0 if there is none. */
! 878: char *onlypath(char *filename)
1.10 pazsan 879: {
1.72 ! anton 880: return strrchr(filename, DIRSEP);
1.1 anton 881: }
882:
883: FILE *openimage(char *fullfilename)
1.10 pazsan 884: {
885: FILE *image_file;
1.28 anton 886: char * expfilename = tilde_cstr(fullfilename, strlen(fullfilename), 1);
1.10 pazsan 887:
1.28 anton 888: image_file=fopen(expfilename,"rb");
1.1 anton 889: if (image_file!=NULL && debug)
1.28 anton 890: fprintf(stderr, "Opened image file: %s\n", expfilename);
1.10 pazsan 891: return image_file;
1.1 anton 892: }
893:
1.28 anton 894: /* try to open image file concat(path[0:len],imagename) */
1.1 anton 895: FILE *checkimage(char *path, int len, char *imagename)
1.10 pazsan 896: {
897: int dirlen=len;
1.1 anton 898: char fullfilename[dirlen+strlen(imagename)+2];
1.10 pazsan 899:
1.1 anton 900: memcpy(fullfilename, path, dirlen);
1.71 pazsan 901: if (fullfilename[dirlen-1]!=DIRSEP)
902: fullfilename[dirlen++]=DIRSEP;
1.1 anton 903: strcpy(fullfilename+dirlen,imagename);
1.10 pazsan 904: return openimage(fullfilename);
1.1 anton 905: }
906:
1.10 pazsan 907: FILE * open_image_file(char * imagename, char * path)
1.1 anton 908: {
1.10 pazsan 909: FILE * image_file=NULL;
1.28 anton 910: char *origpath=path;
1.10 pazsan 911:
1.71 pazsan 912: if(strchr(imagename, DIRSEP)==NULL) {
1.10 pazsan 913: /* first check the directory where the exe file is in !! 01may97jaw */
914: if (onlypath(progname))
1.72 ! anton 915: image_file=checkimage(progname, onlypath(progname)-progname, imagename);
1.10 pazsan 916: if (!image_file)
917: do {
918: char *pend=strchr(path, PATHSEP);
919: if (pend==NULL)
920: pend=path+strlen(path);
921: if (strlen(path)==0) break;
922: image_file=checkimage(path, pend-path, imagename);
923: path=pend+(*pend==PATHSEP);
924: } while (image_file==NULL);
925: } else {
926: image_file=openimage(imagename);
927: }
1.1 anton 928:
1.10 pazsan 929: if (!image_file) {
930: fprintf(stderr,"%s: cannot open image file %s in path %s for reading\n",
1.28 anton 931: progname, imagename, origpath);
1.10 pazsan 932: exit(1);
1.7 anton 933: }
934:
1.10 pazsan 935: return image_file;
936: }
1.11 pazsan 937: #endif
938:
939: #ifdef HAS_OS
940: UCell convsize(char *s, UCell elemsize)
941: /* converts s of the format [0-9]+[bekMGT]? (e.g. 25k) into the number
942: of bytes. the letter at the end indicates the unit, where e stands
943: for the element size. default is e */
944: {
945: char *endp;
946: UCell n,m;
947:
948: m = elemsize;
949: n = strtoul(s,&endp,0);
950: if (endp!=NULL) {
951: if (strcmp(endp,"b")==0)
952: m=1;
953: else if (strcmp(endp,"k")==0)
954: m=1024;
955: else if (strcmp(endp,"M")==0)
956: m=1024*1024;
957: else if (strcmp(endp,"G")==0)
958: m=1024*1024*1024;
959: else if (strcmp(endp,"T")==0) {
960: #if (SIZEOF_CHAR_P > 4)
1.24 anton 961: m=1024L*1024*1024*1024;
1.11 pazsan 962: #else
963: fprintf(stderr,"%s: size specification \"%s\" too large for this machine\n", progname, endp);
964: exit(1);
965: #endif
966: } else if (strcmp(endp,"e")!=0 && strcmp(endp,"")!=0) {
967: fprintf(stderr,"%s: cannot grok size specification %s: invalid unit \"%s\"\n", progname, s, endp);
968: exit(1);
969: }
970: }
971: return n*m;
972: }
1.10 pazsan 973:
974: void gforth_args(int argc, char ** argv, char ** path, char ** imagename)
975: {
976: int c;
977:
1.1 anton 978: opterr=0;
979: while (1) {
980: int option_index=0;
981: static struct option opts[] = {
1.29 anton 982: {"appl-image", required_argument, NULL, 'a'},
1.1 anton 983: {"image-file", required_argument, NULL, 'i'},
984: {"dictionary-size", required_argument, NULL, 'm'},
985: {"data-stack-size", required_argument, NULL, 'd'},
986: {"return-stack-size", required_argument, NULL, 'r'},
987: {"fp-stack-size", required_argument, NULL, 'f'},
988: {"locals-stack-size", required_argument, NULL, 'l'},
989: {"path", required_argument, NULL, 'p'},
990: {"version", no_argument, NULL, 'v'},
991: {"help", no_argument, NULL, 'h'},
992: /* put something != 0 into offset_image */
993: {"offset-image", no_argument, &offset_image, 1},
994: {"no-offset-im", no_argument, &offset_image, 0},
995: {"clear-dictionary", no_argument, &clear_dictionary, 1},
1.4 anton 996: {"die-on-signal", no_argument, &die_on_signal, 1},
1.1 anton 997: {"debug", no_argument, &debug, 1},
1.60 anton 998: {"no-super", no_argument, &no_super, 1},
999: {"no-dynamic", no_argument, &no_dynamic, 1},
1.66 anton 1000: {"dynamic", no_argument, &no_dynamic, 0},
1.1 anton 1001: {0,0,0,0}
1002: /* no-init-file, no-rc? */
1003: };
1004:
1.36 pazsan 1005: c = getopt_long(argc, argv, "+i:m:d:r:f:l:p:vhoncsx", opts, &option_index);
1.1 anton 1006:
1007: switch (c) {
1.29 anton 1008: case EOF: return;
1009: case '?': optind--; return;
1010: case 'a': *imagename = optarg; return;
1.10 pazsan 1011: case 'i': *imagename = optarg; break;
1.1 anton 1012: case 'm': dictsize = convsize(optarg,sizeof(Cell)); break;
1013: case 'd': dsize = convsize(optarg,sizeof(Cell)); break;
1014: case 'r': rsize = convsize(optarg,sizeof(Cell)); break;
1015: case 'f': fsize = convsize(optarg,sizeof(Float)); break;
1016: case 'l': lsize = convsize(optarg,sizeof(Cell)); break;
1.10 pazsan 1017: case 'p': *path = optarg; break;
1.36 pazsan 1018: case 'o': offset_image = 1; break;
1019: case 'n': offset_image = 0; break;
1020: case 'c': clear_dictionary = 1; break;
1021: case 's': die_on_signal = 1; break;
1022: case 'x': debug = 1; break;
1.8 anton 1023: case 'v': fprintf(stderr, "gforth %s\n", VERSION); exit(0);
1.1 anton 1024: case 'h':
1.29 anton 1025: fprintf(stderr, "Usage: %s [engine options] ['--'] [image arguments]\n\
1.1 anton 1026: Engine Options:\n\
1.29 anton 1027: --appl-image FILE equivalent to '--image-file=FILE --'\n\
1.10 pazsan 1028: --clear-dictionary Initialize the dictionary with 0 bytes\n\
1029: -d SIZE, --data-stack-size=SIZE Specify data stack size\n\
1030: --debug Print debugging information during startup\n\
1031: --die-on-signal exit instead of CATCHing some signals\n\
1.66 anton 1032: --dynamic use dynamic native code\n\
1.10 pazsan 1033: -f SIZE, --fp-stack-size=SIZE Specify floating point stack size\n\
1034: -h, --help Print this message and exit\n\
1035: -i FILE, --image-file=FILE Use image FILE instead of `gforth.fi'\n\
1036: -l SIZE, --locals-stack-size=SIZE Specify locals stack size\n\
1037: -m SIZE, --dictionary-size=SIZE Specify Forth dictionary size\n\
1.60 anton 1038: --no-dynamic Use only statically compiled primitives\n\
1.10 pazsan 1039: --no-offset-im Load image at normal position\n\
1.60 anton 1040: --no-super No dynamically formed superinstructions\n\
1.10 pazsan 1041: --offset-image Load image at a different position\n\
1042: -p PATH, --path=PATH Search path for finding image and sources\n\
1043: -r SIZE, --return-stack-size=SIZE Specify return stack size\n\
1.66 anton 1044: -v, --version Print engine version and exit\n\
1.1 anton 1045: SIZE arguments consist of an integer followed by a unit. The unit can be\n\
1.10 pazsan 1046: `b' (byte), `e' (element; default), `k' (KB), `M' (MB), `G' (GB) or `T' (TB).\n",
1047: argv[0]);
1048: optind--;
1049: return;
1.1 anton 1050: }
1051: }
1.10 pazsan 1052: }
1.11 pazsan 1053: #endif
1.10 pazsan 1054:
1055: #ifdef INCLUDE_IMAGE
1056: extern Cell image[];
1057: extern const char reloc_bits[];
1058: #endif
1059:
1.67 pazsan 1060: DCell double2ll(Float r)
1061: {
1062: #ifndef BUGGY_LONG_LONG
1063: return (DCell)(r);
1064: #else
1065: DCell d;
1066: d.hi = ldexp(r,-(int)(CELL_BITS)) - (r<0);
1067: d.lo = r-ldexp((Float)d.hi,CELL_BITS);
1068: return d;
1069: #endif
1070: }
1071:
1.10 pazsan 1072: int main(int argc, char **argv, char **env)
1073: {
1.30 pazsan 1074: #ifdef HAS_OS
1.10 pazsan 1075: char *path = getenv("GFORTHPATH") ? : DEFAULTPATH;
1.30 pazsan 1076: #else
1077: char *path = DEFAULTPATH;
1078: #endif
1.13 pazsan 1079: #ifndef INCLUDE_IMAGE
1.10 pazsan 1080: char *imagename="gforth.fi";
1081: FILE *image_file;
1082: Address image;
1083: #endif
1084: int retvalue;
1085:
1.56 anton 1086: #if defined(i386) && defined(ALIGNMENT_CHECK)
1.10 pazsan 1087: /* turn on alignment checks on the 486.
1088: * on the 386 this should have no effect. */
1089: __asm__("pushfl; popl %eax; orl $0x40000, %eax; pushl %eax; popfl;");
1090: /* this is unusable with Linux' libc.4.6.27, because this library is
1091: not alignment-clean; we would have to replace some library
1092: functions (e.g., memcpy) to make it work. Also GCC doesn't try to keep
1093: the stack FP-aligned. */
1094: #endif
1095:
1096: /* buffering of the user output device */
1.11 pazsan 1097: #ifdef _IONBF
1.10 pazsan 1098: if (isatty(fileno(stdout))) {
1099: fflush(stdout);
1100: setvbuf(stdout,NULL,_IONBF,0);
1.1 anton 1101: }
1.11 pazsan 1102: #endif
1.1 anton 1103:
1.10 pazsan 1104: progname = argv[0];
1105:
1.11 pazsan 1106: #ifdef HAS_OS
1.10 pazsan 1107: gforth_args(argc, argv, &path, &imagename);
1.11 pazsan 1108: #endif
1.10 pazsan 1109:
1110: #ifdef INCLUDE_IMAGE
1111: set_stack_sizes((ImageHeader *)image);
1.22 pazsan 1112: if(((ImageHeader *)image)->base != image)
1113: relocate(image, reloc_bits, ((ImageHeader *)image)->image_size,
1114: (Label*)engine(0, 0, 0, 0, 0));
1.10 pazsan 1115: alloc_stacks((ImageHeader *)image);
1116: #else
1117: image_file = open_image_file(imagename, path);
1118: image = loader(image_file, imagename);
1119: #endif
1.24 anton 1120: gforth_header=(ImageHeader *)image; /* used in SIGSEGV handler */
1.1 anton 1121:
1122: {
1.10 pazsan 1123: char path2[strlen(path)+1];
1.1 anton 1124: char *p1, *p2;
1125: Cell environ[]= {
1126: (Cell)argc-(optind-1),
1127: (Cell)(argv+(optind-1)),
1.10 pazsan 1128: (Cell)strlen(path),
1.1 anton 1129: (Cell)path2};
1130: argv[optind-1] = progname;
1131: /*
1132: for (i=0; i<environ[0]; i++)
1133: printf("%s\n", ((char **)(environ[1]))[i]);
1134: */
1135: /* make path OS-independent by replacing path separators with NUL */
1.10 pazsan 1136: for (p1=path, p2=path2; *p1!='\0'; p1++, p2++)
1.1 anton 1137: if (*p1==PATHSEP)
1138: *p2 = '\0';
1139: else
1140: *p2 = *p1;
1141: *p2='\0';
1.10 pazsan 1142: retvalue = go_forth(image, 4, environ);
1.42 anton 1143: #ifdef VM_PROFILING
1144: vm_print_profile(stderr);
1145: #endif
1.1 anton 1146: deprep_terminal();
1147: }
1.13 pazsan 1148: return retvalue;
1.1 anton 1149: }
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