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Document change to -g internals
[nasm/avx512.git] / nasm.c
blobe6be9256931d3a850f355d1cb3de599468f2ed60
1 /* The Netwide Assembler main program module
2 *
3 * The Netwide Assembler is copyright (C) 1996 Simon Tatham and
4 * Julian Hall. All rights reserved. The software is
5 * redistributable under the licence given in the file "Licence"
6 * distributed in the NASM archive.
7 */
8
9 #include <stdio.h>
10 #include <stdarg.h>
11 #include <stdlib.h>
12 #include <string.h>
13 #include <ctype.h>
14
15 #include "nasm.h"
16 #include "nasmlib.h"
17 #include "insns.h"
18 #include "preproc.h"
19 #include "parser.h"
20 #include "eval.h"
21 #include "assemble.h"
22 #include "labels.h"
23 #include "outform.h"
24 #include "listing.h"
25
26 struct forwrefinfo { /* info held on forward refs. */
27 int lineno;
28 int operand;
29 };
30
31 static int get_bits (char *value);
32 static unsigned long get_cpu (char *cpu_str);
33 static void parse_cmdline (int, char **);
34 static void assemble_file (char *);
35 static int getkw (char **directive, char **value);
36 static void register_output_formats(void);
37 static void report_error_gnu (int severity, const char *fmt, ...);
38 static void report_error_vc (int severity, const char *fmt, ...);
39 static void report_error_common (int severity, const char *fmt, va_list args);
40 static int is_suppressed_warning (int severity);
41 static void usage(void);
42 static efunc report_error;
43
44 static int using_debug_info, opt_verbose_info;
45 int tasm_compatible_mode = FALSE;
46 int pass0;
47
48 static char inname[FILENAME_MAX];
49 static char outname[FILENAME_MAX];
50 static char listname[FILENAME_MAX];
51 static int globallineno; /* for forward-reference tracking */
52 /* static int pass = 0; */
53 static struct ofmt *ofmt = NULL;
54
55 static FILE *error_file; /* Where to write error messages */
56
57 static FILE *ofile = NULL;
58 int optimizing = -1; /* number of optimization passes to take */
59 static int sb, cmd_sb = 16; /* by default */
60 static unsigned long cmd_cpu = IF_PLEVEL; /* highest level by default */
61 static unsigned long cpu = IF_PLEVEL; /* passed to insn_size & assemble.c */
62 int global_offset_changed; /* referenced in labels.c */
63
64 static loc_t location;
65 int in_abs_seg; /* Flag we are in ABSOLUTE seg */
66 long abs_seg; /* ABSOLUTE segment basis */
67 long abs_offset; /* ABSOLUTE offset */
68
69 static struct RAA *offsets;
70
71 static struct SAA *forwrefs; /* keep track of forward references */
72 static struct forwrefinfo *forwref;
73
74 static Preproc *preproc;
75 enum op_type {
76 op_normal, /* Preprocess and assemble */
77 op_preprocess, /* Preprocess only */
78 op_depend /* Generate dependencies */
79 };
80 static enum op_type operating_mode;
81
82 /*
83 * Which of the suppressible warnings are suppressed. Entry zero
84 * doesn't do anything. Initial defaults are given here.
85 */
86 static char suppressed[1+ERR_WARN_MAX] = {
87 0, TRUE, TRUE, TRUE, FALSE, TRUE
88 };
89
90 /*
91 * The option names for the suppressible warnings. As before, entry
92 * zero does nothing.
93 */
94 static const char *suppressed_names[1+ERR_WARN_MAX] = {
95 NULL, "macro-params", "macro-selfref", "orphan-labels", "number-overflow",
96 "gnu-elf-extensions"
97 };
98
99 /*
100 * The explanations for the suppressible warnings. As before, entry
101 * zero does nothing.
102 */
103 static const char *suppressed_what[1+ERR_WARN_MAX] = {
104 NULL,
105 "macro calls with wrong no. of params",
106 "cyclic macro self-references",
107 "labels alone on lines without trailing `:'",
108 "numeric constants greater than 0xFFFFFFFF",
109 "using 8- or 16-bit relocation in ELF, a GNU extension"
110 };
111
112 /*
113 * This is a null preprocessor which just copies lines from input
114 * to output. It's used when someone explicitly requests that NASM
115 * not preprocess their source file.
116 */
117
118 static void no_pp_reset (char *, int, efunc, evalfunc, ListGen *);
119 static char *no_pp_getline (void);
120 static void no_pp_cleanup (int);
121 static Preproc no_pp = {
122 no_pp_reset,
123 no_pp_getline,
124 no_pp_cleanup
125 };
126
127 /*
128 * get/set current offset...
129 */
130 #define GET_CURR_OFFS (in_abs_seg?abs_offset:\
131 raa_read(offsets,location.segment))
132 #define SET_CURR_OFFS(x) (in_abs_seg?(void)(abs_offset=(x)):\
133 (void)(offsets=raa_write(offsets,location.segment,(x))))
134
135 static int want_usage;
136 static int terminate_after_phase;
137 int user_nolist = 0; /* fbk 9/2/00 */
138
139 static void nasm_fputs(const char *line, FILE *outfile)
140 {
141 if (outfile) {
142 fputs(line, outfile);
143 fputc('\n', outfile);
144 } else
145 puts(line);
146 }
147
148 int main(int argc, char **argv)
149 {
150 pass0 = 1;
151 want_usage = terminate_after_phase = FALSE;
152 report_error = report_error_gnu;
153
154 nasm_set_malloc_error (report_error);
155 offsets = raa_init();
156 forwrefs = saa_init ((long)sizeof(struct forwrefinfo));
157
158 preproc = &nasmpp;
159 operating_mode = op_normal;
160
161 error_file = stderr;
162
163 seg_init();
164
165 register_output_formats();
166
167 parse_cmdline(argc, argv);
168
169 if (terminate_after_phase)
170 {
171 if (want_usage)
172 usage();
173 return 1;
174 }
175
176 /* If debugging info is disabled, suppress any debug calls */
177 if (!using_debug_info)
178 ofmt->current_dfmt = &null_debug_form;
179
180 if (ofmt->stdmac)
181 pp_extra_stdmac (ofmt->stdmac);
182 parser_global_info (ofmt, &location);
183 eval_global_info (ofmt, lookup_label, &location);
184
185 /* define some macros dependent of command-line */
186 {
187 char temp [64];
188 sprintf (temp, "__OUTPUT_FORMAT__=%s\n", ofmt->shortname);
189 pp_pre_define (temp);
190 }
191
192 switch ( operating_mode ) {
193 case op_depend:
194 {
195 char *line;
196 preproc->reset (inname, 0, report_error, evaluate, &nasmlist);
197 if (outname[0] == '\0')
198 ofmt->filename (inname, outname, report_error);
199 ofile = NULL;
200 fprintf(stdout, "%s: %s", outname, inname);
201 while ( (line = preproc->getline()) )
202 nasm_free (line);
203 preproc->cleanup(0);
204 putc('\n', stdout);
205 }
206 break;
207
208 case op_preprocess:
209 {
210 char *line;
211 char *file_name = NULL;
212 long prior_linnum=0;
213 int lineinc=0;
214
215 if (*outname) {
216 ofile = fopen(outname, "w");
217 if (!ofile)
218 report_error (ERR_FATAL | ERR_NOFILE,
219 "unable to open output file `%s'", outname);
220 } else
221 ofile = NULL;
222
223 location.known = FALSE;
224
225 /* pass = 1; */
226 preproc->reset (inname, 2, report_error, evaluate, &nasmlist);
227 while ( (line = preproc->getline()) ) {
228 /*
229 * We generate %line directives if needed for later programs
230 */
231 long linnum = prior_linnum += lineinc;
232 int altline = src_get(&linnum, &file_name);
233 if (altline) {
234 if (altline==1 && lineinc==1)
235 nasm_fputs("", ofile);
236 else {
237 lineinc = (altline != -1 || lineinc!=1);
238 fprintf(ofile ? ofile : stdout, "%%line %ld+%d %s\n",
239 linnum, lineinc, file_name);
240 }
241 prior_linnum = linnum;
242 }
243 nasm_fputs(line, ofile);
244 nasm_free (line);
245 }
246 nasm_free(file_name);
247 preproc->cleanup(0);
248 if (ofile)
249 fclose(ofile);
250 if (ofile && terminate_after_phase)
251 remove(outname);
252 }
253 break;
254
255 case op_normal:
256 {
257 /*
258 * We must call ofmt->filename _anyway_, even if the user
259 * has specified their own output file, because some
260 * formats (eg OBJ and COFF) use ofmt->filename to find out
261 * the name of the input file and then put that inside the
262 * file.
263 */
264 ofmt->filename (inname, outname, report_error);
265
266 ofile = fopen(outname, "wb");
267 if (!ofile) {
268 report_error (ERR_FATAL | ERR_NOFILE,
269 "unable to open output file `%s'", outname);
270 }
271
272 /*
273 * We must call init_labels() before ofmt->init() since
274 * some object formats will want to define labels in their
275 * init routines. (eg OS/2 defines the FLAT group)
276 */
277 init_labels ();
278
279 ofmt->init (ofile, report_error, define_label, evaluate);
280
281 assemble_file (inname);
282
283 if (!terminate_after_phase) {
284 ofmt->cleanup (using_debug_info);
285 cleanup_labels ();
286 } else {
287 /*
288 * We had an fclose on the output file here, but we
289 * actually do that in all the object file drivers as well,
290 * so we're leaving out the one here.
291 * fclose (ofile);
292 */
293 remove(outname);
294 if (listname[0])
295 remove(listname);
296 }
297 }
298 break;
299 }
300
301 if (want_usage)
302 usage();
303
304 raa_free (offsets);
305 saa_free (forwrefs);
306 eval_cleanup ();
307 nasmlib_cleanup ();
308
309 if (terminate_after_phase)
310 return 1;
311 else
312 return 0;
313 }
314
315
316 /*
317 * Get a parameter for a command line option.
318 * First arg must be in the form of e.g. -f...
319 */
320 static char *get_param (char *p, char *q, int *advance)
321 {
322 *advance = 0;
323 if (p[2]) /* the parameter's in the option */
324 {
325 p += 2;
326 while (isspace(*p))
327 p++;
328 return p;
329 }
330 if (q && q[0])
331 {
332 *advance = 1;
333 return q;
334 }
335 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
336 "option `-%c' requires an argument",
337 p[1]);
338 return NULL;
339 }
340
341 struct textargs
342 {
343 const char *label;
344 int value;
345 };
346
347 #define OPT_PREFIX 0
348 #define OPT_POSTFIX 1
349 struct textargs textopts[] =
350 {
351 {"prefix",OPT_PREFIX},
352 {"postfix",OPT_POSTFIX},
353 {NULL,0}
354 };
355
356
357 int stopoptions = 0;
358 static int process_arg (char *p, char *q)
359 {
360 char *param;
361 int i, advance = 0;
362
363 if (!p || !p[0])
364 return 0;
365
366 if (p[0]=='-' && ! stopoptions)
367 {
368 switch (p[1]) {
369 case 's':
370 error_file = stdout;
371 break;
372 case 'o': /* these parameters take values */
373 case 'O':
374 case 'f':
375 case 'p':
376 case 'P':
377 case 'd':
378 case 'D':
379 case 'i':
380 case 'I':
381 case 'l':
382 case 'E':
383 case 'F':
384 case 'X':
385 case 'u':
386 case 'U':
387 if ( !(param = get_param (p, q, &advance)) )
388 break;
389 if (p[1]=='o') { /* output file */
390 strcpy (outname, param);
391 } else if (p[1]=='f') { /* output format */
392 ofmt = ofmt_find(param);
393 if (!ofmt) {
394 report_error (ERR_FATAL | ERR_NOFILE | ERR_USAGE,
395 "unrecognised output format `%s' - "
396 "use -hf for a list",
397 param);
398 }
399 else
400 ofmt->current_dfmt = ofmt->debug_formats[0];
401 } else if (p[1]=='O') { /* Optimization level */
402 int opt;
403 opt = -99;
404 while (*param) {
405 if (isdigit(*param)) {
406 opt = atoi(param);
407 while(isdigit(*++param)) ;
408 if (opt<=0) optimizing = -1; /* 0.98 behaviour */
409 else if (opt==1) optimizing = 0; /* Two passes, 0.98.09 behavior */
410 else optimizing = opt; /* Multiple passes */
411 } else {
412 if (*param == 'v' || *param == '+') {
413 ++param;
414 opt_verbose_info = TRUE;
415 opt = 0;
416 } else { /* garbage */
417 opt = -99;
418 break;
419 }
420 }
421 } /* while (*param) */
422 if (opt == -99) report_error(ERR_FATAL,
423 "command line optimization level must be 'v', 0..3 or <nn>");
424 } else if (p[1]=='P' || p[1]=='p') { /* pre-include */
425 pp_pre_include (param);
426 } else if (p[1]=='D' || p[1]=='d') { /* pre-define */
427 pp_pre_define (param);
428 } else if (p[1]=='U' || p[1]=='u') { /* un-define */
429 pp_pre_undefine (param);
430 } else if (p[1]=='I' || p[1]=='i') { /* include search path */
431 pp_include_path (param);
432 } else if (p[1]=='l') { /* listing file */
433 strcpy (listname, param);
434 } else if (p[1]=='E') { /* error messages file */
435 error_file = fopen(param, "w");
436 if ( !error_file ) {
437 error_file = stderr; /* Revert to default! */
438 report_error (ERR_FATAL | ERR_NOFILE | ERR_USAGE,
439 "cannot open file `%s' for error messages",
440 param);
441 }
442 } else if (p[1] == 'F') { /* specify debug format */
443 ofmt->current_dfmt = dfmt_find(ofmt, param);
444 if (!ofmt->current_dfmt) {
445 report_error (ERR_FATAL | ERR_NOFILE | ERR_USAGE,
446 "unrecognized debug format `%s' for"
447 " output format `%s'",
448 param, ofmt->shortname);
449 }
450 } else if (p[1] == 'X') { /* specify error reporting format */
451 if (nasm_stricmp("vc", param) == 0)
452 report_error = report_error_vc;
453 else if (nasm_stricmp("gnu", param) == 0)
454 report_error = report_error_gnu;
455 else
456 report_error (ERR_FATAL | ERR_NOFILE | ERR_USAGE,
457 "unrecognized error reporting format `%s'",
458 param);
459 }
460 break;
461 case 'g':
462 using_debug_info = TRUE;
463 break;
464 case 'h':
465 printf("usage: nasm [-@ response file] [-o outfile] [-f format] "
466 "[-l listfile]\n"
467 " [options...] [--] filename\n"
468 " or nasm -r for version info (obsolete)\n"
469 " or nasm -v for version info (preferred)\n\n"
470 " -t Assemble in SciTech TASM compatible mode\n"
471 " -g Generate debug information in selected format.\n");
472 printf(" -e preprocess only (writes output to stdout by default)\n"
473 " -a don't preprocess (assemble only)\n"
474 " -M generate Makefile dependencies on stdout\n\n"
475 " -E<file> redirect error messages to file\n"
476 " -s redirect error messages to stdout\n\n"
477 " -F format select a debugging format\n\n"
478 " -I<path> adds a pathname to the include file path\n");
479 printf(" -O<digit> optimize branch offsets (-O0 disables, default)\n"
480 " -P<file> pre-includes a file\n"
481 " -D<macro>[=<value>] pre-defines a macro\n"
482 " -U<macro> undefines a macro\n"
483 " -X<format> specifies error reporting format (gnu or vc)\n"
484 " -w+foo enables warnings about foo; -w-foo disables them\n"
485 "where foo can be:\n");
486 for (i=1; i<=ERR_WARN_MAX; i++)
487 printf(" %-23s %s (default %s)\n",
488 suppressed_names[i], suppressed_what[i],
489 suppressed[i] ? "off" : "on");
490 printf ("\nresponse files should contain command line parameters"
491 ", one per line.\n");
492 if (p[2] == 'f') {
493 printf("\nvalid output formats for -f are"
494 " (`*' denotes default):\n");
495 ofmt_list(ofmt, stdout);
496 }
497 else {
498 printf ("\nFor a list of valid output formats, use -hf.\n");
499 printf ("For a list of debug formats, use -f <form> -y.\n");
500 }
501 exit (0); /* never need usage message here */
502 break;
503 case 'y':
504 printf("\nvalid debug formats for '%s' output format are"
505 " ('*' denotes default):\n",
506 ofmt->shortname);
507 dfmt_list(ofmt, stdout);
508 exit(0);
509 break;
510 case 't':
511 tasm_compatible_mode = TRUE;
512 break;
513 case 'r':
514 case 'v':
515 {
516 const char *nasm_version_string =
517 "NASM version " NASM_VER " compiled on " __DATE__
518 #ifdef DEBUG
519 " with -DDEBUG"
520 #endif
521 ;
522 puts(nasm_version_string);
523 exit (0); /* never need usage message here */
524 }
525 break;
526 case 'e': /* preprocess only */
527 operating_mode = op_preprocess;
528 break;
529 case 'a': /* assemble only - don't preprocess */
530 preproc = &no_pp;
531 break;
532 case 'w':
533 if (p[2] != '+' && p[2] != '-') {
534 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
535 "invalid option to `-w'");
536 } else {
537 for (i=1; i<=ERR_WARN_MAX; i++)
538 if (!nasm_stricmp(p+3, suppressed_names[i]))
539 break;
540 if (i <= ERR_WARN_MAX)
541 suppressed[i] = (p[2] == '-');
542 else
543 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
544 "invalid option to `-w'");
545 }
546 break;
547 case 'M':
548 operating_mode = op_depend;
549 break;
550
551 case '-':
552 {
553 int s;
554
555 if (p[2]==0) { /* -- => stop processing options */
556 stopoptions = 1;
557 break;
558 }
559 for(s=0; textopts[s].label; s++)
560 {
561 if(!nasm_stricmp(p+2, textopts[s].label))
562 {
563 break;
564 }
565 }
566
567 switch(s)
568 {
569
570 case OPT_PREFIX:
571 case OPT_POSTFIX:
572 {
573 if (!q)
574 {
575 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
576 "option `--%s' requires an argument",
577 p+2);
578 break;
579 }
580 else
581 {
582 advance = 1, param = q;
583 }
584
585 if(s == OPT_PREFIX)
586 {
587 strncpy(lprefix,param,PREFIX_MAX-1);
588 lprefix[PREFIX_MAX-1]=0;
589 break;
590 }
591 if(s == OPT_POSTFIX)
592 {
593 strncpy(lpostfix,param,POSTFIX_MAX-1);
594 lpostfix[POSTFIX_MAX-1]=0;
595 break;
596 }
597 break;
598 }
599 default:
600 {
601 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
602 "unrecognised option `--%s'",
603 p+2);
604 break;
605 }
606 }
607 break;
608 }
609
610 default:
611 if (!ofmt->setinfo(GI_SWITCH,&p))
612 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
613 "unrecognised option `-%c'",
614 p[1]);
615 break;
616 }
617 }
618 else
619 {
620 if (*inname) {
621 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
622 "more than one input file specified");
623 } else
624 strcpy(inname, p);
625 }
626
627 return advance;
628 }
629
630 #define ARG_BUF_DELTA 128
631
632 static void process_respfile (FILE *rfile)
633 {
634 char *buffer, *p, *q, *prevarg;
635 int bufsize, prevargsize;
636
637 bufsize = prevargsize = ARG_BUF_DELTA;
638 buffer = nasm_malloc(ARG_BUF_DELTA);
639 prevarg = nasm_malloc(ARG_BUF_DELTA);
640 prevarg[0] = '\0';
641
642 while (1) { /* Loop to handle all lines in file */
643
644 p = buffer;
645 while (1) { /* Loop to handle long lines */
646 q = fgets(p, bufsize-(p-buffer), rfile);
647 if (!q)
648 break;
649 p += strlen(p);
650 if (p > buffer && p[-1] == '\n')
651 break;
652 if (p-buffer > bufsize-10) {
653 int offset;
654 offset = p - buffer;
655 bufsize += ARG_BUF_DELTA;
656 buffer = nasm_realloc(buffer, bufsize);
657 p = buffer + offset;
658 }
659 }
660
661 if (!q && p == buffer) {
662 if (prevarg[0])
663 process_arg (prevarg, NULL);
664 nasm_free (buffer);
665 nasm_free (prevarg);
666 return;
667 }
668
669 /*
670 * Play safe: remove CRs, LFs and any spurious ^Zs, if any of
671 * them are present at the end of the line.
672 */
673 *(p = &buffer[strcspn(buffer, "\r\n\032")]) = '\0';
674
675 while (p > buffer && isspace(p[-1]))
676 *--p = '\0';
677
678 p = buffer;
679 while (isspace(*p))
680 p++;
681
682 if (process_arg (prevarg, p))
683 *p = '\0';
684
685 if (strlen(p) > prevargsize-10) {
686 prevargsize += ARG_BUF_DELTA;
687 prevarg = nasm_realloc(prevarg, prevargsize);
688 }
689 strcpy (prevarg, p);
690 }
691 }
692
693 /* Function to process args from a string of args, rather than the
694 * argv array. Used by the environment variable and response file
695 * processing.
696 */
697 static void process_args (char *args) {
698 char *p, *q, *arg, *prevarg;
699 char separator = ' ';
700
701 p = args;
702 if (*p && *p != '-')
703 separator = *p++;
704 arg = NULL;
705 while (*p) {
706 q = p;
707 while (*p && *p != separator) p++;
708 while (*p == separator) *p++ = '\0';
709 prevarg = arg;
710 arg = q;
711 if (process_arg (prevarg, arg))
712 arg = NULL;
713 }
714 if (arg)
715 process_arg (arg, NULL);
716 }
717
718 static void parse_cmdline(int argc, char **argv)
719 {
720 FILE *rfile;
721 char *envreal, *envcopy=NULL, *p, *arg;
722
723 *inname = *outname = *listname = '\0';
724
725 /*
726 * First, process the NASMENV environment variable.
727 */
728 envreal = getenv("NASMENV");
729 arg = NULL;
730 if (envreal) {
731 envcopy = nasm_strdup(envreal);
732 process_args(envcopy);
733 nasm_free (envcopy);
734 }
735
736 /*
737 * Now process the actual command line.
738 */
739 while (--argc)
740 {
741 int i;
742 argv++;
743 if (argv[0][0] == '@') {
744 /* We have a response file, so process this as a set of
745 * arguments like the environment variable. This allows us
746 * to have multiple arguments on a single line, which is
747 * different to the -@resp file processing below for regular
748 * NASM.
749 */
750 char *str = malloc(2048);
751 FILE *f = fopen(&argv[0][1],"r");
752 if (!str) {
753 printf("out of memory");
754 exit(-1);
755 }
756 if (f) {
757 while (fgets(str,2048,f)) {
758 process_args(str);
759 }
760 fclose(f);
761 }
762 free(str);
763 argc--;
764 argv++;
765 }
766 if (!stopoptions && argv[0][0] == '-' && argv[0][1] == '@') {
767 if ((p = get_param (argv[0], argc > 1 ? argv[1] : NULL, &i))) {
768 if ((rfile = fopen(p, "r"))) {
769 process_respfile (rfile);
770 fclose(rfile);
771 } else
772 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
773 "unable to open response file `%s'", p);
774 }
775 } else
776 i = process_arg (argv[0], argc > 1 ? argv[1] : NULL);
777 argv += i, argc -= i;
778 }
779
780 if (!*inname)
781 report_error (ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
782 "no input file specified");
783 }
784
785
786 static void assemble_file (char *fname)
787 {
788 char * directive, * value, * p, * q, * special, * line, debugid[80];
789 insn output_ins;
790 int i, rn_error, validid;
791 long seg, offs;
792 struct tokenval tokval;
793 expr * e;
794 int pass, pass_max;
795 int pass_cnt = 0; /* count actual passes */
796
797 if (cmd_sb == 32 && cmd_cpu < IF_386)
798 report_error(ERR_FATAL, "command line: "
799 "32-bit segment size requires a higher cpu");
800
801 pass_max = (optimizing>0 ? optimizing : 0) + 2; /* passes 1, optimizing, then 2 */
802 pass0 = !(optimizing>0); /* start at 1 if not optimizing */
803 for (pass = 1; pass <= pass_max && pass0 <= 2; pass++) {
804 int pass1, pass2;
805 ldfunc def_label;
806
807 pass1 = pass < pass_max ? 1 : 2; /* seq is 1, 1, 1,..., 1, 2 */
808 pass2 = pass > 1 ? 2 : 1; /* seq is 1, 2, 2,..., 2, 2 */
809 /* pass0 seq is 0, 0, 0,..., 1, 2 */
810
811 def_label = pass > 1 ? redefine_label : define_label;
812
813
814 sb = cmd_sb; /* set 'bits' to command line default */
815 cpu = cmd_cpu;
816 if (pass0 == 2) {
817 if (*listname)
818 nasmlist.init(listname, report_error);
819 }
820 in_abs_seg = FALSE;
821 global_offset_changed = FALSE; /* set by redefine_label */
822 location.segment = ofmt->section(NULL, pass2, &sb);
823 if (pass > 1) {
824 saa_rewind (forwrefs);
825 forwref = saa_rstruct (forwrefs);
826 raa_free (offsets);
827 offsets = raa_init();
828 }
829 preproc->reset(fname, pass1, report_error, evaluate, &nasmlist);
830 globallineno = 0;
831 if (pass == 1) location.known = TRUE;
832 location.offset = offs = GET_CURR_OFFS;
833
834 while ( (line = preproc->getline()) )
835 {
836 globallineno++;
837
838 /* here we parse our directives; this is not handled by the 'real'
839 * parser. */
840 directive = line;
841 if ( (i = getkw (&directive, &value)) )
842 {
843 switch (i) {
844 case 1: /* [SEGMENT n] */
845 seg = ofmt->section (value, pass2, &sb);
846 if (seg == NO_SEG) {
847 report_error (pass1==1 ? ERR_NONFATAL : ERR_PANIC,
848 "segment name `%s' not recognised",
849 value);
850 } else {
851 in_abs_seg = FALSE;
852 location.segment = seg;
853 }
854 break;
855 case 2: /* [EXTERN label:special] */
856 if (*value == '$') value++; /* skip initial $ if present */
857 if (pass0 == 2) {
858 q = value;
859 while (*q && *q != ':')
860 q++;
861 if (*q == ':') {
862 *q++ = '\0';
863 ofmt->symdef(value, 0L, 0L, 3, q);
864 }
865 } else if (pass == 1) { /* pass == 1 */
866 q = value;
867 validid = TRUE;
868 if (!isidstart(*q))
869 validid = FALSE;
870 while (*q && *q != ':') {
871 if (!isidchar(*q))
872 validid = FALSE;
873 q++;
874 }
875 if (!validid) {
876 report_error (ERR_NONFATAL,
877 "identifier expected after EXTERN");
878 break;
879 }
880 if (*q == ':') {
881 *q++ = '\0';
882 special = q;
883 } else
884 special = NULL;
885 if (!is_extern(value)) { /* allow re-EXTERN to be ignored */
886 int temp = pass0;
887 pass0 = 1; /* fake pass 1 in labels.c */
888 declare_as_global (value, special, report_error);
889 define_label (value, seg_alloc(), 0L, NULL, FALSE, TRUE,
890 ofmt, report_error);
891 pass0 = temp;
892 }
893 } /* else pass0 == 1 */
894 break;
895 case 3: /* [BITS bits] */
896 sb = get_bits(value);
897 break;
898 case 4: /* [GLOBAL symbol:special] */
899 if (*value == '$') value++; /* skip initial $ if present */
900 if (pass0 == 2) { /* pass 2 */
901 q = value;
902 while (*q && *q != ':')
903 q++;
904 if (*q == ':') {
905 *q++ = '\0';
906 ofmt->symdef(value, 0L, 0L, 3, q);
907 }
908 } else if (pass2 == 1) { /* pass == 1 */
909 q = value;
910 validid = TRUE;
911 if (!isidstart(*q))
912 validid = FALSE;
913 while (*q && *q != ':') {
914 if (!isidchar(*q))
915 validid = FALSE;
916 q++;
917 }
918 if (!validid) {
919 report_error (ERR_NONFATAL,
920 "identifier expected after GLOBAL");
921 break;
922 }
923 if (*q == ':') {
924 *q++ = '\0';
925 special = q;
926 } else
927 special = NULL;
928 declare_as_global (value, special, report_error);
929 } /* pass == 1 */
930 break;
931 case 5: /* [COMMON symbol size:special] */
932 if (*value == '$') value++; /* skip initial $ if present */
933 if (pass0 == 1) {
934 p = value;
935 validid = TRUE;
936 if (!isidstart(*p))
937 validid = FALSE;
938 while (*p && !isspace(*p)) {
939 if (!isidchar(*p))
940 validid = FALSE;
941 p++;
942 }
943 if (!validid) {
944 report_error (ERR_NONFATAL,
945 "identifier expected after COMMON");
946 break;
947 }
948 if (*p) {
949 long size;
950
951 while (*p && isspace(*p))
952 *p++ = '\0';
953 q = p;
954 while (*q && *q != ':')
955 q++;
956 if (*q == ':') {
957 *q++ = '\0';
958 special = q;
959 } else
960 special = NULL;
961 size = readnum (p, &rn_error);
962 if (rn_error)
963 report_error (ERR_NONFATAL, "invalid size specified"
964 " in COMMON declaration");
965 else
966 define_common (value, seg_alloc(), size,
967 special, ofmt, report_error);
968 } else
969 report_error (ERR_NONFATAL, "no size specified in"
970 " COMMON declaration");
971 } else if (pass0 == 2) { /* pass == 2 */
972 q = value;
973 while (*q && *q != ':') {
974 if (isspace(*q))
975 *q = '\0';
976 q++;
977 }
978 if (*q == ':') {
979 *q++ = '\0';
980 ofmt->symdef(value, 0L, 0L, 3, q);
981 }
982 }
983 break;
984 case 6: /* [ABSOLUTE address] */
985 stdscan_reset();
986 stdscan_bufptr = value;
987 tokval.t_type = TOKEN_INVALID;
988 e = evaluate(stdscan, NULL, &tokval, NULL, pass2, report_error,
989 NULL);
990 if (e) {
991 if (!is_reloc(e))
992 report_error (pass0==1 ? ERR_NONFATAL : ERR_PANIC,
993 "cannot use non-relocatable expression as "
994 "ABSOLUTE address");
995 else {
996 abs_seg = reloc_seg(e);
997 abs_offset = reloc_value(e);
998 }
999 } else
1000 if (pass==1) abs_offset = 0x100;/* don't go near zero in case of / */
1001 else report_error (ERR_PANIC, "invalid ABSOLUTE address "
1002 "in pass two");
1003 in_abs_seg = TRUE;
1004 location.segment = NO_SEG;
1005 break;
1006 case 7: /* DEBUG */
1007 p = value;
1008 q = debugid;
1009 validid = TRUE;
1010 if (!isidstart(*p))
1011 validid = FALSE;
1012 while (*p && !isspace(*p)) {
1013 if (!isidchar(*p))
1014 validid = FALSE;
1015 *q++ = *p++;
1016 }
1017 *q++ = 0;
1018 if (!validid) {
1019 report_error (pass==1 ? ERR_NONFATAL : ERR_PANIC,
1020 "identifier expected after DEBUG");
1021 break;
1022 }
1023 while (*p && isspace(*p)) p++;
1024 if (pass==pass_max) ofmt->current_dfmt->debug_directive (debugid, p);
1025 break;
1026 case 8: /* [WARNING {+|-}warn-name] */
1027 if (pass1 == 1) {
1028 while (*value && isspace(*value))
1029 value++;
1030
1031 if (*value == '+' || *value == '-') {
1032 validid = (*value == '-') ? TRUE : FALSE;
1033 value++;
1034 } else
1035 validid = FALSE;
1036
1037 for (i=1; i<=ERR_WARN_MAX; i++)
1038 if (!nasm_stricmp(value, suppressed_names[i]))
1039 break;
1040 if (i <= ERR_WARN_MAX)
1041 suppressed[i] = validid;
1042 else
1043 report_error (ERR_NONFATAL, "invalid warning id in WARNING directive");
1044 }
1045 break;
1046 case 9: /* cpu */
1047 cpu = get_cpu (value);
1048 break;
1049 case 10: /* fbk 9/2/00 */ /* [LIST {+|-}] */
1050 while (*value && isspace(*value))
1051 value++;
1052
1053 if (*value == '+') {
1054 user_nolist = 0;
1055 }
1056 else {
1057 if (*value == '-') {
1058 user_nolist = 1;
1059 }
1060 else {
1061 report_error (ERR_NONFATAL, "invalid parameter to \"list\" directive");
1062 }
1063 }
1064 break;
1065 default:
1066 if (!ofmt->directive (directive, value, pass2))
1067 report_error (pass1==1 ? ERR_NONFATAL : ERR_PANIC,
1068 "unrecognised directive [%s]",
1069 directive);
1070 }
1071 }
1072 else /* it isn't a directive */
1073 {
1074 parse_line (pass1, line, &output_ins,
1075 report_error, evaluate,
1076 def_label);
1077
1078 if (!(optimizing>0) && pass == 2) {
1079 if (forwref != NULL && globallineno == forwref->lineno) {
1080 output_ins.forw_ref = TRUE;
1081 do {
1082 output_ins.oprs[forwref->operand].opflags |= OPFLAG_FORWARD;
1083 forwref = saa_rstruct (forwrefs);
1084 } while (forwref != NULL && forwref->lineno == globallineno);
1085 } else
1086 output_ins.forw_ref = FALSE;
1087 }
1088
1089
1090 if (!(optimizing>0) && output_ins.forw_ref)
1091 {
1092 if (pass == 1) {
1093 for(i = 0; i < output_ins.operands; i++)
1094 {
1095 if (output_ins.oprs[i].opflags & OPFLAG_FORWARD)
1096 {
1097 struct forwrefinfo *fwinf =
1098 (struct forwrefinfo *)saa_wstruct(forwrefs);
1099 fwinf->lineno = globallineno;
1100 fwinf->operand = i;
1101 }
1102 }
1103 } else { /* pass == 2 */
1104 /*
1105 * Hack to prevent phase error in the code
1106 * rol ax,x
1107 * x equ 1
1108 *
1109 * If the second operand is a forward reference,
1110 * the UNITY property of the number 1 in that
1111 * operand is cancelled. Otherwise the above
1112 * sequence will cause a phase error.
1113 *
1114 * This hack means that the above code will
1115 * generate 286+ code.
1116 *
1117 * The forward reference will mean that the
1118 * operand will not have the UNITY property on
1119 * the first pass, so the pass behaviours will
1120 * be consistent.
1121 */
1122
1123 if (output_ins.operands >= 2 &&
1124 (output_ins.oprs[1].opflags & OPFLAG_FORWARD))
1125 {
1126 output_ins.oprs[1].type &= ~(ONENESS|BYTENESS);
1127 }
1128
1129 } /* pass == 2 */
1130
1131 } /* forw_ref */
1132
1133
1134 if (output_ins.opcode == I_EQU) {
1135 if (pass1 == 1)
1136 {
1137 /*
1138 * Special `..' EQUs get processed in pass two,
1139 * except `..@' macro-processor EQUs which are done
1140 * in the normal place.
1141 */
1142 if (!output_ins.label)
1143 report_error (ERR_NONFATAL,
1144 "EQU not preceded by label");
1145
1146 else if (output_ins.label[0] != '.' ||
1147 output_ins.label[1] != '.' ||
1148 output_ins.label[2] == '@')
1149 {
1150 if (output_ins.operands == 1 &&
1151 (output_ins.oprs[0].type & IMMEDIATE) &&
1152 output_ins.oprs[0].wrt == NO_SEG)
1153 {
1154 int isext = output_ins.oprs[0].opflags & OPFLAG_EXTERN;
1155 def_label (output_ins.label,
1156 output_ins.oprs[0].segment,
1157 output_ins.oprs[0].offset,
1158 NULL, FALSE, isext, ofmt, report_error);
1159 }
1160 else if (output_ins.operands == 2 &&
1161 (output_ins.oprs[0].type & IMMEDIATE) &&
1162 (output_ins.oprs[0].type & COLON) &&
1163 output_ins.oprs[0].segment == NO_SEG &&
1164 output_ins.oprs[0].wrt == NO_SEG &&
1165 (output_ins.oprs[1].type & IMMEDIATE) &&
1166 output_ins.oprs[1].segment == NO_SEG &&
1167 output_ins.oprs[1].wrt == NO_SEG)
1168 {
1169 def_label (output_ins.label,
1170 output_ins.oprs[0].offset | SEG_ABS,
1171 output_ins.oprs[1].offset,
1172 NULL, FALSE, FALSE, ofmt, report_error);
1173 }
1174 else
1175 report_error(ERR_NONFATAL, "bad syntax for EQU");
1176 }
1177 } else { /* pass == 2 */
1178 /*
1179 * Special `..' EQUs get processed here, except
1180 * `..@' macro processor EQUs which are done above.
1181 */
1182 if (output_ins.label[0] == '.' &&
1183 output_ins.label[1] == '.' &&
1184 output_ins.label[2] != '@')
1185 {
1186 if (output_ins.operands == 1 &&
1187 (output_ins.oprs[0].type & IMMEDIATE)) {
1188 define_label (output_ins.label,
1189 output_ins.oprs[0].segment,
1190 output_ins.oprs[0].offset,
1191 NULL, FALSE, FALSE, ofmt, report_error);
1192 }
1193 else if (output_ins.operands == 2 &&
1194 (output_ins.oprs[0].type & IMMEDIATE) &&
1195 (output_ins.oprs[0].type & COLON) &&
1196 output_ins.oprs[0].segment == NO_SEG &&
1197 (output_ins.oprs[1].type & IMMEDIATE) &&
1198 output_ins.oprs[1].segment == NO_SEG)
1199 {
1200 define_label (output_ins.label,
1201 output_ins.oprs[0].offset | SEG_ABS,
1202 output_ins.oprs[1].offset,
1203 NULL, FALSE, FALSE, ofmt, report_error);
1204 }
1205 else
1206 report_error(ERR_NONFATAL, "bad syntax for EQU");
1207 }
1208 } /* pass == 2 */
1209 } else { /* instruction isn't an EQU */
1210
1211 if (pass1 == 1) {
1212
1213 long l = insn_size (location.segment, offs, sb, cpu,
1214 &output_ins, report_error);
1215
1216 /* if (using_debug_info) && output_ins.opcode != -1)*/
1217 if (using_debug_info) /* fbk 03/25/01 */
1218
1219 {
1220 /* this is done here so we can do debug type info */
1221 long typeinfo = TYS_ELEMENTS(output_ins.operands);
1222 switch (output_ins.opcode) {
1223 case I_RESB:
1224 typeinfo = TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_BYTE;
1225 break;
1226 case I_RESW:
1227 typeinfo = TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_WORD;
1228 break;
1229 case I_RESD:
1230 typeinfo = TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_DWORD;
1231 break;
1232 case I_RESQ:
1233 typeinfo = TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_QWORD;
1234 break;
1235 case I_REST:
1236 typeinfo = TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_TBYTE;
1237 break;
1238 case I_DB:
1239 typeinfo |= TY_BYTE;
1240 break;
1241 case I_DW:
1242 typeinfo |= TY_WORD;
1243 break;
1244 case I_DD:
1245 if (output_ins.eops_float)
1246 typeinfo |= TY_FLOAT;
1247 else
1248 typeinfo |= TY_DWORD;
1249 break;
1250 case I_DQ:
1251 typeinfo |= TY_QWORD;
1252 break;
1253 case I_DT:
1254 typeinfo |= TY_TBYTE;
1255 break;
1256 default:
1257 typeinfo = TY_LABEL;
1258
1259 }
1260
1261 ofmt->current_dfmt->debug_typevalue(typeinfo);
1262
1263 }
1264 if (l != -1) {
1265 offs += l;
1266 SET_CURR_OFFS (offs);
1267 }
1268 /*
1269 * else l == -1 => invalid instruction, which will be
1270 * flagged as an error on pass 2
1271 */
1272
1273 } else { /* pass == 2 */
1274 offs += assemble (location.segment, offs, sb, cpu,
1275 &output_ins, ofmt, report_error, &nasmlist);
1276 SET_CURR_OFFS (offs);
1277
1278 }
1279 } /* not an EQU */
1280 cleanup_insn (&output_ins);
1281 }
1282 nasm_free (line);
1283 location.offset = offs = GET_CURR_OFFS;
1284 } /* end while (line = preproc->getline... */
1285
1286 if (pass1==2 && global_offset_changed)
1287 report_error(ERR_NONFATAL, "phase error detected at end of assembly.");
1288
1289 if (pass1 == 1) preproc->cleanup(1);
1290
1291 if (pass1==1 && terminate_after_phase) {
1292 fclose(ofile);
1293 remove(outname);
1294 if (want_usage)
1295 usage();
1296 exit (1);
1297 }
1298 pass_cnt++;
1299 if (pass>1 && !global_offset_changed) {
1300 pass0++;
1301 if (pass0==2) pass = pass_max - 1;
1302 } else if (!(optimizing>0)) pass0++;
1303
1304 } /* for (pass=1; pass<=2; pass++) */
1305
1306 preproc->cleanup(0);
1307 nasmlist.cleanup();
1308 #if 1
1309 if (optimizing>0 && opt_verbose_info) /* -On and -Ov switches */
1310 fprintf(stdout,
1311 "info:: assembly required 1+%d+1 passes\n", pass_cnt-2);
1312 #endif
1313 } /* exit from assemble_file (...) */
1314
1315
1316 static int getkw (char **directive, char **value)
1317 {
1318 char *p, *q, *buf;
1319
1320 buf = *directive;
1321
1322 /* allow leading spaces or tabs */
1323 while (*buf==' ' || *buf=='\t')
1324 buf++;
1325
1326 if (*buf!='[')
1327 return 0;
1328
1329 p = buf;
1330
1331 while (*p && *p != ']') p++;
1332
1333 if (!*p)
1334 return 0;
1335
1336 q = p++;
1337
1338 while (*p && *p != ';') {
1339 if (!isspace(*p))
1340 return 0;
1341 p++;
1342 }
1343 q[1] = '\0';
1344
1345 *directive = p = buf+1;
1346 while (*buf && *buf!=' ' && *buf!=']' && *buf!='\t')
1347 buf++;
1348 if (*buf==']') {
1349 *buf = '\0';
1350 *value = buf;
1351 } else {
1352 *buf++ = '\0';
1353 while (isspace(*buf)) buf++; /* beppu - skip leading whitespace */
1354 *value = buf;
1355 while (*buf!=']') buf++;
1356 *buf++ = '\0';
1357 }
1358 #if 0
1359 for (q=p; *q; q++)
1360 *q = tolower(*q);
1361 #endif
1362 if (!nasm_stricmp(p, "segment") || !nasm_stricmp(p, "section"))
1363 return 1;
1364 if (!nasm_stricmp(p, "extern"))
1365 return 2;
1366 if (!nasm_stricmp(p, "bits"))
1367 return 3;
1368 if (!nasm_stricmp(p, "global"))
1369 return 4;
1370 if (!nasm_stricmp(p, "common"))
1371 return 5;
1372 if (!nasm_stricmp(p, "absolute"))
1373 return 6;
1374 if (!nasm_stricmp(p, "debug"))
1375 return 7;
1376 if (!nasm_stricmp(p, "warning"))
1377 return 8;
1378 if (!nasm_stricmp(p, "cpu"))
1379 return 9;
1380 if (!nasm_stricmp(p, "list")) /* fbk 9/2/00 */
1381 return 10;
1382 return -1;
1383 }
1384
1385 /**
1386 * gnu style error reporting
1387 * This function prints an error message to error_file in the
1388 * style used by GNU. An example would be:
1389 * file.asm:50: error: blah blah blah
1390 * where file.asm is the name of the file, 50 is the line number on
1391 * which the error occurs (or is detected) and "error:" is one of
1392 * the possible optional diagnostics -- it can be "error" or "warning"
1393 * or something else. Finally the line terminates with the actual
1394 * error message.
1395 *
1396 * @param severity the severity of the warning or error
1397 * @param fmt the printf style format string
1398 */
1399 static void report_error_gnu (int severity, const char *fmt, ...)
1400 {
1401 va_list ap;
1402
1403 if (is_suppressed_warning(severity))
1404 return;
1405
1406 if (severity & ERR_NOFILE)
1407 fputs ("nasm: ", error_file);
1408 else {
1409 char * currentfile = NULL;
1410 long lineno = 0;
1411 src_get (&lineno, &currentfile);
1412 fprintf (error_file, "%s:%ld: ", currentfile, lineno);
1413 nasm_free (currentfile);
1414 }
1415 va_start (ap, fmt);
1416 report_error_common (severity, fmt, ap);
1417 va_end (ap);
1418 }
1419
1420 /**
1421 * MS style error reporting
1422 * This function prints an error message to error_file in the
1423 * style used by Visual C and some other Microsoft tools. An example
1424 * would be:
1425 * file.asm(50) : error: blah blah blah
1426 * where file.asm is the name of the file, 50 is the line number on
1427 * which the error occurs (or is detected) and "error:" is one of
1428 * the possible optional diagnostics -- it can be "error" or "warning"
1429 * or something else. Finally the line terminates with the actual
1430 * error message.
1431 *
1432 * @param severity the severity of the warning or error
1433 * @param fmt the printf style format string
1434 */
1435 static void report_error_vc (int severity, const char *fmt, ...)
1436 {
1437 va_list ap;
1438
1439 if (is_suppressed_warning (severity))
1440 return;
1441
1442 if (severity & ERR_NOFILE)
1443 fputs ("nasm: ", error_file);
1444 else {
1445 char * currentfile = NULL;
1446 long lineno = 0;
1447 src_get (&lineno, &currentfile);
1448 fprintf (error_file, "%s(%ld) : ", currentfile, lineno);
1449 nasm_free (currentfile);
1450 }
1451 va_start (ap, fmt);
1452 report_error_common (severity, fmt, ap);
1453 va_end (ap);
1454 }
1455
1456 /**
1457 * check for supressed warning
1458 * checks for suppressed warning or pass one only warning and we're
1459 * not in pass 1
1460 *
1461 * @param severity the severity of the warning or error
1462 * @return true if we should abort error/warning printing
1463 */
1464 static int is_suppressed_warning (int severity)
1465 {
1466 /*
1467 * See if it's a suppressed warning.
1468 */
1469 return ((severity & ERR_MASK) == ERR_WARNING &&
1470 (severity & ERR_WARN_MASK) != 0 &&
1471 suppressed[ (severity & ERR_WARN_MASK) >> ERR_WARN_SHR ]) ||
1472 /*
1473 * See if it's a pass-one only warning and we're not in pass one.
1474 */
1475 ((severity & ERR_PASS1) && pass0 == 2);
1476 }
1477
1478 /**
1479 * common error reporting
1480 * This is the common back end of the error reporting schemes currently
1481 * implemented. It prints the nature of the warning and then the
1482 * specific error message to error_file and may or may not return. It
1483 * doesn't return if the error severity is a "panic" or "debug" type.
1484 *
1485 * @param severity the severity of the warning or error
1486 * @param fmt the printf style format string
1487 */
1488 static void report_error_common (int severity, const char *fmt, va_list args)
1489 {
1490 switch (severity & ERR_MASK) {
1491 case ERR_WARNING:
1492 fputs ("warning: ", error_file); break;
1493 case ERR_NONFATAL:
1494 fputs ("error: ", error_file); break;
1495 case ERR_FATAL:
1496 fputs ("fatal: ", error_file); break;
1497 case ERR_PANIC:
1498 fputs ("panic: ", error_file); break;
1499 case ERR_DEBUG:
1500 fputs("debug: ", error_file); break;
1501 }
1502
1503 vfprintf (error_file, fmt, args);
1504 fputc ('\n', error_file);
1505
1506 if (severity & ERR_USAGE)
1507 want_usage = TRUE;
1508
1509 switch (severity & ERR_MASK) {
1510 case ERR_WARNING: case ERR_DEBUG:
1511 /* no further action, by definition */
1512 break;
1513 case ERR_NONFATAL:
1514 /* hack enables listing(!) on errors */
1515 terminate_after_phase = TRUE;
1516 break;
1517 case ERR_FATAL:
1518 if (ofile) {
1519 fclose(ofile);
1520 remove(outname);
1521 }
1522 if (want_usage)
1523 usage();
1524 exit(1); /* instantly die */
1525 break; /* placate silly compilers */
1526 case ERR_PANIC:
1527 fflush(NULL);
1528 /* abort(); */ /* halt, catch fire, and dump core */
1529 exit(3);
1530 break;
1531 }
1532 }
1533
1534 static void usage(void)
1535 {
1536 fputs("type `nasm -h' for help\n", error_file);
1537 }
1538
1539 static void register_output_formats(void)
1540 {
1541 ofmt = ofmt_register (report_error);
1542 }
1543
1544 #define BUF_DELTA 512
1545
1546 static FILE *no_pp_fp;
1547 static efunc no_pp_err;
1548 static ListGen *no_pp_list;
1549 static long no_pp_lineinc;
1550
1551 static void no_pp_reset (char *file, int pass, efunc error, evalfunc eval,
1552 ListGen *listgen)
1553 {
1554 src_set_fname(nasm_strdup(file));
1555 src_set_linnum(0);
1556 no_pp_lineinc = 1;
1557 no_pp_err = error;
1558 no_pp_fp = fopen(file, "r");
1559 if (!no_pp_fp)
1560 no_pp_err (ERR_FATAL | ERR_NOFILE,
1561 "unable to open input file `%s'", file);
1562 no_pp_list = listgen;
1563 (void) pass; /* placate compilers */
1564 (void) eval; /* placate compilers */
1565 }
1566
1567 static char *no_pp_getline (void)
1568 {
1569 char *buffer, *p, *q;
1570 int bufsize;
1571
1572 bufsize = BUF_DELTA;
1573 buffer = nasm_malloc(BUF_DELTA);
1574 src_set_linnum(src_get_linnum() + no_pp_lineinc);
1575
1576 while (1) { /* Loop to handle %line */
1577
1578 p = buffer;
1579 while (1) { /* Loop to handle long lines */
1580 q = fgets(p, bufsize-(p-buffer), no_pp_fp);
1581 if (!q)
1582 break;
1583 p += strlen(p);
1584 if (p > buffer && p[-1] == '\n')
1585 break;
1586 if (p-buffer > bufsize-10) {
1587 int offset;
1588 offset = p - buffer;
1589 bufsize += BUF_DELTA;
1590 buffer = nasm_realloc(buffer, bufsize);
1591 p = buffer + offset;
1592 }
1593 }
1594
1595 if (!q && p == buffer) {
1596 nasm_free (buffer);
1597 return NULL;
1598 }
1599
1600 /*
1601 * Play safe: remove CRs, LFs and any spurious ^Zs, if any of
1602 * them are present at the end of the line.
1603 */
1604 buffer[strcspn(buffer, "\r\n\032")] = '\0';
1605
1606 if (!strncmp(buffer, "%line", 5)) {
1607 long ln;
1608 int li;
1609 char *nm = nasm_malloc(strlen(buffer));
1610 if (sscanf(buffer+5, "%ld+%d %s", &ln, &li, nm) == 3) {
1611 nasm_free( src_set_fname(nm) );
1612 src_set_linnum(ln);
1613 no_pp_lineinc = li;
1614 continue;
1615 }
1616 nasm_free(nm);
1617 }
1618 break;
1619 }
1620
1621 no_pp_list->line (LIST_READ, buffer);
1622
1623 return buffer;
1624 }
1625
1626 static void no_pp_cleanup (int pass)
1627 {
1628 fclose(no_pp_fp);
1629 }
1630
1631 static unsigned long get_cpu (char *value)
1632 {
1633
1634 if (!strcmp(value, "8086")) return IF_8086;
1635 if (!strcmp(value, "186")) return IF_186;
1636 if (!strcmp(value, "286")) return IF_286;
1637 if (!strcmp(value, "386")) return IF_386;
1638 if (!strcmp(value, "486")) return IF_486;
1639 if (!strcmp(value, "586") ||
1640 !nasm_stricmp(value, "pentium") ) return IF_PENT;
1641 if (!strcmp(value, "686") ||
1642 !nasm_stricmp(value, "ppro") ||
1643 !nasm_stricmp(value, "pentiumpro") ||
1644 !nasm_stricmp(value, "p2") ) return IF_P6;
1645 if (!nasm_stricmp(value, "p3") ||
1646 !nasm_stricmp(value, "katmai") ) return IF_KATMAI;
1647 if (!nasm_stricmp(value, "p4") || /* is this right? -- jrc */
1648 !nasm_stricmp(value, "willamette") ) return IF_WILLAMETTE;
1649 if (!nasm_stricmp(value, "prescott") ) return IF_PRESCOTT;
1650 if (!nasm_stricmp(value, "ia64") ||
1651 !nasm_stricmp(value, "ia-64") ||
1652 !nasm_stricmp(value, "itanium") ||
1653 !nasm_stricmp(value, "itanic") ||
1654 !nasm_stricmp(value, "merced") ) return IF_IA64;
1655
1656 report_error (pass0<2 ? ERR_NONFATAL : ERR_FATAL, "unknown 'cpu' type");
1657
1658 return IF_PLEVEL; /* the maximum level */
1659 }
1660
1661
1662 static int get_bits (char *value)
1663 {
1664 int i;
1665
1666 if ((i = atoi(value)) == 16) return i; /* set for a 16-bit segment */
1667 else if (i == 32) {
1668 if (cpu < IF_386) {
1669 report_error(ERR_NONFATAL,
1670 "cannot specify 32-bit segment on processor below a 386");
1671 i = 16;
1672 }
1673 } else {
1674 report_error(pass0<2 ? ERR_NONFATAL : ERR_FATAL,
1675 "`%s' is not a valid segment size; must be 16 or 32",
1676 value);
1677 i = 16;
1678 }
1679 return i;
1680 }
1681
1682 /* end of nasm.c */
Adding AVX-512 features