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NASM 2.06rc10
[nasm/avx512.git] / nasm.c
blobc17e52c8acb260bd6ef8cb459f34d86dd07a8c23
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 license given in the file "LICENSE"
6 * distributed in the NASM archive.
7 */
8
9 #include "compiler.h"
10
11 #include <stdio.h>
12 #include <stdarg.h>
13 #include <stdlib.h>
14 #include <string.h>
15 #include <ctype.h>
16 #include <inttypes.h>
17 #include <limits.h>
18 #include <time.h>
19
20 #include "nasm.h"
21 #include "nasmlib.h"
22 #include "saa.h"
23 #include "raa.h"
24 #include "float.h"
25 #include "stdscan.h"
26 #include "insns.h"
27 #include "preproc.h"
28 #include "parser.h"
29 #include "eval.h"
30 #include "assemble.h"
31 #include "labels.h"
32 #include "outform.h"
33 #include "listing.h"
34
35 struct forwrefinfo { /* info held on forward refs. */
36 int lineno;
37 int operand;
38 };
39
40 static int get_bits(char *value);
41 static uint32_t get_cpu(char *cpu_str);
42 static void parse_cmdline(int, char **);
43 static void assemble_file(char *, StrList **);
44 static void register_output_formats(void);
45 static void report_error_gnu(int severity, const char *fmt, ...);
46 static void report_error_vc(int severity, const char *fmt, ...);
47 static void report_error_common(int severity, const char *fmt,
48 va_list args);
49 static bool is_suppressed_warning(int severity);
50 static void usage(void);
51 static efunc report_error;
52
53 static int using_debug_info, opt_verbose_info;
54 bool tasm_compatible_mode = false;
55 int pass0, passn;
56 int maxbits = 0;
57 int globalrel = 0;
58
59 time_t official_compile_time;
60
61 static char inname[FILENAME_MAX];
62 static char outname[FILENAME_MAX];
63 static char listname[FILENAME_MAX];
64 static char errname[FILENAME_MAX];
65 static int globallineno; /* for forward-reference tracking */
66 /* static int pass = 0; */
67 static struct ofmt *ofmt = NULL;
68
69 static FILE *error_file; /* Where to write error messages */
70
71 static FILE *ofile = NULL;
72 int optimizing = -1; /* number of optimization passes to take */
73 static int sb, cmd_sb = 16; /* by default */
74 static uint32_t cmd_cpu = IF_PLEVEL; /* highest level by default */
75 static uint32_t cpu = IF_PLEVEL; /* passed to insn_size & assemble.c */
76 int64_t global_offset_changed; /* referenced in labels.c */
77 int64_t prev_offset_changed;
78 int32_t stall_count;
79
80 static struct location location;
81 int in_abs_seg; /* Flag we are in ABSOLUTE seg */
82 int32_t abs_seg; /* ABSOLUTE segment basis */
83 int32_t abs_offset; /* ABSOLUTE offset */
84
85 static struct RAA *offsets;
86
87 static struct SAA *forwrefs; /* keep track of forward references */
88 static const struct forwrefinfo *forwref;
89
90 static Preproc *preproc;
91 enum op_type {
92 op_normal, /* Preprocess and assemble */
93 op_preprocess, /* Preprocess only */
94 op_depend, /* Generate dependencies */
95 };
96 static enum op_type operating_mode;
97 /* Dependency flags */
98 static bool depend_emit_phony = false;
99 static bool depend_missing_ok = false;
100 static const char *depend_target = NULL;
101 static const char *depend_file = NULL;
102
103 /*
104 * Which of the suppressible warnings are suppressed. Entry zero
105 * isn't an actual warning, but it used for -w+error/-Werror.
106 */
107
108 static bool warning_on[ERR_WARN_MAX+1]; /* Current state */
109 static bool warning_on_global[ERR_WARN_MAX+1]; /* Command-line state */
110
111 static const struct warning {
112 const char *name;
113 const char *help;
114 bool enabled;
115 } warnings[ERR_WARN_MAX+1] = {
116 {"error", "treat warnings as errors", false},
117 {"macro-params", "macro calls with wrong parameter count", true},
118 {"macro-selfref", "cyclic macro references", false},
119 {"macro-defaults", "macros with more default than optional parameters", true},
120 {"orphan-labels", "labels alone on lines without trailing `:'", true},
121 {"number-overflow", "numeric constant does not fit", true},
122 {"gnu-elf-extensions", "using 8- or 16-bit relocation in ELF32, a GNU extension", false},
123 {"float-overflow", "floating point overflow", true},
124 {"float-denorm", "floating point denormal", false},
125 {"float-underflow", "floating point underflow", false},
126 {"float-toolong", "too many digits in floating-point number", true},
127 {"user", "%warning directives", true},
128 };
129
130 /*
131 * This is a null preprocessor which just copies lines from input
132 * to output. It's used when someone explicitly requests that NASM
133 * not preprocess their source file.
134 */
135
136 static void no_pp_reset(char *, int, efunc, evalfunc, ListGen *, StrList **);
137 static char *no_pp_getline(void);
138 static void no_pp_cleanup(int);
139 static Preproc no_pp = {
140 no_pp_reset,
141 no_pp_getline,
142 no_pp_cleanup
143 };
144
145 /*
146 * get/set current offset...
147 */
148 #define GET_CURR_OFFS (in_abs_seg?abs_offset:\
149 raa_read(offsets,location.segment))
150 #define SET_CURR_OFFS(x) (in_abs_seg?(void)(abs_offset=(x)):\
151 (void)(offsets=raa_write(offsets,location.segment,(x))))
152
153 static int want_usage;
154 static int terminate_after_phase;
155 int user_nolist = 0; /* fbk 9/2/00 */
156
157 static void nasm_fputs(const char *line, FILE * outfile)
158 {
159 if (outfile) {
160 fputs(line, outfile);
161 putc('\n', outfile);
162 } else
163 puts(line);
164 }
165
166 /* Convert a struct tm to a POSIX-style time constant */
167 static int64_t posix_mktime(struct tm *tm)
168 {
169 int64_t t;
170 int64_t y = tm->tm_year;
171
172 /* See IEEE 1003.1:2004, section 4.14 */
173
174 t = (y-70)*365 + (y-69)/4 - (y-1)/100 + (y+299)/400;
175 t += tm->tm_yday;
176 t *= 24;
177 t += tm->tm_hour;
178 t *= 60;
179 t += tm->tm_min;
180 t *= 60;
181 t += tm->tm_sec;
182
183 return t;
184 }
185
186 static void define_macros_early(void)
187 {
188 char temp[128];
189 struct tm lt, *lt_p, gm, *gm_p;
190 int64_t posix_time;
191
192 lt_p = localtime(&official_compile_time);
193 if (lt_p) {
194 lt = *lt_p;
195
196 strftime(temp, sizeof temp, "__DATE__=\"%Y-%m-%d\"", &lt);
197 pp_pre_define(temp);
198 strftime(temp, sizeof temp, "__DATE_NUM__=%Y%m%d", &lt);
199 pp_pre_define(temp);
200 strftime(temp, sizeof temp, "__TIME__=\"%H:%M:%S\"", &lt);
201 pp_pre_define(temp);
202 strftime(temp, sizeof temp, "__TIME_NUM__=%H%M%S", &lt);
203 pp_pre_define(temp);
204 }
205
206 gm_p = gmtime(&official_compile_time);
207 if (gm_p) {
208 gm = *gm_p;
209
210 strftime(temp, sizeof temp, "__UTC_DATE__=\"%Y-%m-%d\"", &gm);
211 pp_pre_define(temp);
212 strftime(temp, sizeof temp, "__UTC_DATE_NUM__=%Y%m%d", &gm);
213 pp_pre_define(temp);
214 strftime(temp, sizeof temp, "__UTC_TIME__=\"%H:%M:%S\"", &gm);
215 pp_pre_define(temp);
216 strftime(temp, sizeof temp, "__UTC_TIME_NUM__=%H%M%S", &gm);
217 pp_pre_define(temp);
218 }
219
220 if (gm_p)
221 posix_time = posix_mktime(&gm);
222 else if (lt_p)
223 posix_time = posix_mktime(&lt);
224 else
225 posix_time = 0;
226
227 if (posix_time) {
228 snprintf(temp, sizeof temp, "__POSIX_TIME__=%"PRId64, posix_time);
229 pp_pre_define(temp);
230 }
231 }
232
233 static void define_macros_late(void)
234 {
235 char temp[128];
236
237 snprintf(temp, sizeof(temp), "__OUTPUT_FORMAT__=%s\n",
238 ofmt->shortname);
239 pp_pre_define(temp);
240 }
241
242 static void emit_dependencies(StrList *list)
243 {
244 FILE *deps;
245 int linepos, len;
246 StrList *l, *nl;
247
248 if (depend_file && strcmp(depend_file, "-")) {
249 deps = fopen(depend_file, "w");
250 if (!deps) {
251 report_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE,
252 "unable to write dependency file `%s'", depend_file);
253 return;
254 }
255 } else {
256 deps = stdout;
257 }
258
259 linepos = fprintf(deps, "%s:", depend_target);
260 for (l = list; l; l = l->next) {
261 len = strlen(l->str);
262 if (linepos + len > 62) {
263 fprintf(deps, " \\\n ");
264 linepos = 1;
265 }
266 fprintf(deps, " %s", l->str);
267 linepos += len+1;
268 }
269 fprintf(deps, "\n\n");
270
271 for (l = list; l; l = nl) {
272 if (depend_emit_phony)
273 fprintf(deps, "%s:\n\n", l->str);
274
275 nl = l->next;
276 nasm_free(l);
277 }
278
279 if (deps != stdout)
280 fclose(deps);
281 }
282
283 int main(int argc, char **argv)
284 {
285 StrList *depend_list = NULL, **depend_ptr;
286
287 time(&official_compile_time);
288
289 pass0 = 0;
290 want_usage = terminate_after_phase = false;
291 report_error = report_error_gnu;
292
293 error_file = stderr;
294
295 tolower_init();
296
297 nasm_set_malloc_error(report_error);
298 offsets = raa_init();
299 forwrefs = saa_init((int32_t)sizeof(struct forwrefinfo));
300
301 preproc = &nasmpp;
302 operating_mode = op_normal;
303
304 seg_init();
305
306 register_output_formats();
307
308 /* Define some macros dependent on the runtime, but not
309 on the command line. */
310 define_macros_early();
311
312 parse_cmdline(argc, argv);
313
314 if (terminate_after_phase) {
315 if (want_usage)
316 usage();
317 return 1;
318 }
319
320 /* If debugging info is disabled, suppress any debug calls */
321 if (!using_debug_info)
322 ofmt->current_dfmt = &null_debug_form;
323
324 if (ofmt->stdmac)
325 pp_extra_stdmac(ofmt->stdmac);
326 parser_global_info(ofmt, &location);
327 eval_global_info(ofmt, lookup_label, &location);
328
329 /* define some macros dependent of command-line */
330 define_macros_late();
331
332 depend_ptr = (depend_file || (operating_mode == op_depend))
333 ? &depend_list : NULL;
334 if (!depend_target)
335 depend_target = outname;
336
337 switch (operating_mode) {
338 case op_depend:
339 {
340 char *line;
341
342 if (depend_missing_ok)
343 pp_include_path(NULL); /* "assume generated" */
344
345 preproc->reset(inname, 0, report_error, evaluate, &nasmlist,
346 depend_ptr);
347 if (outname[0] == '\0')
348 ofmt->filename(inname, outname, report_error);
349 ofile = NULL;
350 while ((line = preproc->getline()))
351 nasm_free(line);
352 preproc->cleanup(0);
353 }
354 break;
355
356 case op_preprocess:
357 {
358 char *line;
359 char *file_name = NULL;
360 int32_t prior_linnum = 0;
361 int lineinc = 0;
362
363 if (*outname) {
364 ofile = fopen(outname, "w");
365 if (!ofile)
366 report_error(ERR_FATAL | ERR_NOFILE,
367 "unable to open output file `%s'",
368 outname);
369 } else
370 ofile = NULL;
371
372 location.known = false;
373
374 /* pass = 1; */
375 preproc->reset(inname, 3, report_error, evaluate, &nasmlist,
376 depend_ptr);
377
378 while ((line = preproc->getline())) {
379 /*
380 * We generate %line directives if needed for later programs
381 */
382 int32_t linnum = prior_linnum += lineinc;
383 int altline = src_get(&linnum, &file_name);
384 if (altline) {
385 if (altline == 1 && lineinc == 1)
386 nasm_fputs("", ofile);
387 else {
388 lineinc = (altline != -1 || lineinc != 1);
389 fprintf(ofile ? ofile : stdout,
390 "%%line %"PRId32"+%d %s\n", linnum, lineinc,
391 file_name);
392 }
393 prior_linnum = linnum;
394 }
395 nasm_fputs(line, ofile);
396 nasm_free(line);
397 }
398 nasm_free(file_name);
399 preproc->cleanup(0);
400 if (ofile)
401 fclose(ofile);
402 if (ofile && terminate_after_phase)
403 remove(outname);
404 }
405 break;
406
407 case op_normal:
408 {
409 /*
410 * We must call ofmt->filename _anyway_, even if the user
411 * has specified their own output file, because some
412 * formats (eg OBJ and COFF) use ofmt->filename to find out
413 * the name of the input file and then put that inside the
414 * file.
415 */
416 ofmt->filename(inname, outname, report_error);
417
418 ofile = fopen(outname, "wb");
419 if (!ofile) {
420 report_error(ERR_FATAL | ERR_NOFILE,
421 "unable to open output file `%s'", outname);
422 }
423
424 /*
425 * We must call init_labels() before ofmt->init() since
426 * some object formats will want to define labels in their
427 * init routines. (eg OS/2 defines the FLAT group)
428 */
429 init_labels();
430
431 ofmt->init(ofile, report_error, define_label, evaluate);
432
433 assemble_file(inname, depend_ptr);
434
435 if (!terminate_after_phase) {
436 ofmt->cleanup(using_debug_info);
437 cleanup_labels();
438 } else {
439 /*
440 * Despite earlier comments, we need this fclose.
441 * The object output drivers only fclose on cleanup,
442 * and we just skipped that.
443 */
444 fclose (ofile);
445
446 remove(outname);
447 if (listname[0])
448 remove(listname);
449 }
450 }
451 break;
452 }
453
454 if (depend_list)
455 emit_dependencies(depend_list);
456
457 if (want_usage)
458 usage();
459
460 raa_free(offsets);
461 saa_free(forwrefs);
462 eval_cleanup();
463 stdscan_cleanup();
464
465 if (terminate_after_phase)
466 return 1;
467 else
468 return 0;
469 }
470
471 /*
472 * Get a parameter for a command line option.
473 * First arg must be in the form of e.g. -f...
474 */
475 static char *get_param(char *p, char *q, bool *advance)
476 {
477 *advance = false;
478 if (p[2]) { /* the parameter's in the option */
479 p += 2;
480 while (nasm_isspace(*p))
481 p++;
482 return p;
483 }
484 if (q && q[0]) {
485 *advance = true;
486 return q;
487 }
488 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
489 "option `-%c' requires an argument", p[1]);
490 return NULL;
491 }
492
493 /*
494 * Copy a filename
495 */
496 static void copy_filename(char *dst, const char *src)
497 {
498 size_t len = strlen(src);
499
500 if (len >= (size_t)FILENAME_MAX) {
501 report_error(ERR_FATAL | ERR_NOFILE, "file name too long");
502 return;
503 }
504 strncpy(dst, src, FILENAME_MAX);
505 }
506
507 /*
508 * Convert a string to Make-safe form
509 */
510 static char *quote_for_make(const char *str)
511 {
512 const char *p;
513 char *os, *q;
514
515 size_t n = 1; /* Terminating zero */
516 size_t nbs = 0;
517
518 if (!str)
519 return NULL;
520
521 for (p = str; *p; p++) {
522 switch (*p) {
523 case ' ':
524 case '\t':
525 /* Convert N backslashes + ws -> 2N+1 backslashes + ws */
526 n += nbs + 2;
527 nbs = 0;
528 break;
529 case '$':
530 case '#':
531 nbs = 0;
532 n += 2;
533 break;
534 case '\\':
535 nbs++;
536 n++;
537 break;
538 default:
539 nbs = 0;
540 n++;
541 break;
542 }
543 }
544
545 /* Convert N backslashes at the end of filename to 2N backslashes */
546 if (nbs)
547 n += nbs;
548
549 os = q = nasm_malloc(n);
550
551 nbs = 0;
552 for (p = str; *p; p++) {
553 switch (*p) {
554 case ' ':
555 case '\t':
556 while (nbs--)
557 *q++ = '\\';
558 *q++ = '\\';
559 *q++ = *p;
560 break;
561 case '$':
562 *q++ = *p;
563 *q++ = *p;
564 nbs = 0;
565 break;
566 case '#':
567 *q++ = '\\';
568 *q++ = *p;
569 nbs = 0;
570 break;
571 case '\\':
572 *q++ = *p;
573 nbs++;
574 break;
575 default:
576 *q++ = *p;
577 nbs = 0;
578 break;
579 }
580 }
581 while (nbs--)
582 *q++ = '\\';
583
584 *q = '\0';
585
586 return os;
587 }
588
589 struct textargs {
590 const char *label;
591 int value;
592 };
593
594 #define OPT_PREFIX 0
595 #define OPT_POSTFIX 1
596 struct textargs textopts[] = {
597 {"prefix", OPT_PREFIX},
598 {"postfix", OPT_POSTFIX},
599 {NULL, 0}
600 };
601
602 static bool stopoptions = false;
603 static bool process_arg(char *p, char *q)
604 {
605 char *param;
606 int i;
607 bool advance = false;
608 bool do_warn;
609
610 if (!p || !p[0])
611 return false;
612
613 if (p[0] == '-' && !stopoptions) {
614 if (strchr("oOfpPdDiIlFXuUZwW", p[1])) {
615 /* These parameters take values */
616 if (!(param = get_param(p, q, &advance)))
617 return advance;
618 }
619
620 switch (p[1]) {
621 case 's':
622 error_file = stdout;
623 break;
624
625 case 'o': /* output file */
626 copy_filename(outname, param);
627 break;
628
629 case 'f': /* output format */
630 ofmt = ofmt_find(param);
631 if (!ofmt) {
632 report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
633 "unrecognised output format `%s' - "
634 "use -hf for a list", param);
635 }
636 break;
637
638 case 'O': /* Optimization level */
639 {
640 int opt;
641
642 if (!*param) {
643 /* Naked -O == -Ox */
644 optimizing = INT_MAX >> 1; /* Almost unlimited */
645 } else {
646 while (*param) {
647 switch (*param) {
648 case '0': case '1': case '2': case '3': case '4':
649 case '5': case '6': case '7': case '8': case '9':
650 opt = strtoul(param, &param, 10);
651
652 /* -O0 -> optimizing == -1, 0.98 behaviour */
653 /* -O1 -> optimizing == 0, 0.98.09 behaviour */
654 if (opt < 2)
655 optimizing = opt - 1;
656 else
657 optimizing = opt;
658 break;
659
660 case 'v':
661 case '+':
662 param++;
663 opt_verbose_info = true;
664 break;
665
666 case 'x':
667 param++;
668 optimizing = INT_MAX >> 1; /* Almost unlimited */
669 break;
670
671 default:
672 report_error(ERR_FATAL,
673 "unknown optimization option -O%c\n",
674 *param);
675 break;
676 }
677 }
678 }
679 break;
680 }
681
682 case 'p': /* pre-include */
683 case 'P':
684 pp_pre_include(param);
685 break;
686
687 case 'd': /* pre-define */
688 case 'D':
689 pp_pre_define(param);
690 break;
691
692 case 'u': /* un-define */
693 case 'U':
694 pp_pre_undefine(param);
695 break;
696
697 case 'i': /* include search path */
698 case 'I':
699 pp_include_path(param);
700 break;
701
702 case 'l': /* listing file */
703 copy_filename(listname, param);
704 break;
705
706 case 'Z': /* error messages file */
707 strcpy(errname, param);
708 break;
709
710 case 'F': /* specify debug format */
711 ofmt->current_dfmt = dfmt_find(ofmt, param);
712 if (!ofmt->current_dfmt) {
713 report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
714 "unrecognized debug format `%s' for"
715 " output format `%s'",
716 param, ofmt->shortname);
717 }
718 using_debug_info = true;
719 break;
720
721 case 'X': /* specify error reporting format */
722 if (nasm_stricmp("vc", param) == 0)
723 report_error = report_error_vc;
724 else if (nasm_stricmp("gnu", param) == 0)
725 report_error = report_error_gnu;
726 else
727 report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
728 "unrecognized error reporting format `%s'",
729 param);
730 break;
731
732 case 'g':
733 using_debug_info = true;
734 break;
735
736 case 'h':
737 printf
738 ("usage: nasm [-@ response file] [-o outfile] [-f format] "
739 "[-l listfile]\n"
740 " [options...] [--] filename\n"
741 " or nasm -v for version info\n\n"
742 " -t assemble in SciTech TASM compatible mode\n"
743 " -g generate debug information in selected format.\n");
744 printf
745 (" -E (or -e) preprocess only (writes output to stdout by default)\n"
746 " -a don't preprocess (assemble only)\n"
747 " -M generate Makefile dependencies on stdout\n"
748 " -MG d:o, missing files assumed generated\n\n"
749 " -Z<file> redirect error messages to file\n"
750 " -s redirect error messages to stdout\n\n"
751 " -F format select a debugging format\n\n"
752 " -I<path> adds a pathname to the include file path\n");
753 printf
754 (" -O<digit> optimize branch offsets (-O0 disables, default)\n"
755 " -P<file> pre-includes a file\n"
756 " -D<macro>[=<value>] pre-defines a macro\n"
757 " -U<macro> undefines a macro\n"
758 " -X<format> specifies error reporting format (gnu or vc)\n"
759 " -w+foo enables warning foo (equiv. -Wfoo)\n"
760 " -w-foo disable warning foo (equiv. -Wno-foo)\n"
761 "Warnings:\n");
762 for (i = 0; i <= ERR_WARN_MAX; i++)
763 printf(" %-23s %s (default %s)\n",
764 warnings[i].name, warnings[i].help,
765 warnings[i].enabled ? "on" : "off");
766 printf
767 ("\nresponse files should contain command line parameters"
768 ", one per line.\n");
769 if (p[2] == 'f') {
770 printf("\nvalid output formats for -f are"
771 " (`*' denotes default):\n");
772 ofmt_list(ofmt, stdout);
773 } else {
774 printf("\nFor a list of valid output formats, use -hf.\n");
775 printf("For a list of debug formats, use -f <form> -y.\n");
776 }
777 exit(0); /* never need usage message here */
778 break;
779
780 case 'y':
781 printf("\nvalid debug formats for '%s' output format are"
782 " ('*' denotes default):\n", ofmt->shortname);
783 dfmt_list(ofmt, stdout);
784 exit(0);
785 break;
786
787 case 't':
788 tasm_compatible_mode = true;
789 break;
790
791 case 'v':
792 printf("NASM version %s compiled on %s%s\n",
793 nasm_version, nasm_date, nasm_compile_options);
794 exit(0); /* never need usage message here */
795 break;
796
797 case 'e': /* preprocess only */
798 case 'E':
799 operating_mode = op_preprocess;
800 break;
801
802 case 'a': /* assemble only - don't preprocess */
803 preproc = &no_pp;
804 break;
805
806 case 'W':
807 if (param[0] == 'n' && param[1] == 'o' && param[2] == '-') {
808 do_warn = false;
809 param += 3;
810 } else {
811 do_warn = true;
812 }
813 goto set_warning;
814
815 case 'w':
816 if (param[0] != '+' && param[0] != '-') {
817 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
818 "invalid option to `-w'");
819 break;
820 }
821 do_warn = (param[0] == '+');
822 param++;
823 goto set_warning;
824 set_warning:
825 for (i = 0; i <= ERR_WARN_MAX; i++)
826 if (!nasm_stricmp(param, warnings[i].name))
827 break;
828 if (i <= ERR_WARN_MAX)
829 warning_on_global[i] = do_warn;
830 else if (!nasm_stricmp(param, "all"))
831 for (i = 1; i <= ERR_WARN_MAX; i++)
832 warning_on_global[i] = do_warn;
833 else if (!nasm_stricmp(param, "none"))
834 for (i = 1; i <= ERR_WARN_MAX; i++)
835 warning_on_global[i] = !do_warn;
836 else
837 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
838 "invalid warning `%s'", param);
839 break;
840
841 case 'M':
842 switch (p[2]) {
843 case 0:
844 operating_mode = op_depend;
845 break;
846 case 'G':
847 operating_mode = op_depend;
848 depend_missing_ok = true;
849 break;
850 case 'P':
851 depend_emit_phony = true;
852 break;
853 case 'D':
854 depend_file = q;
855 advance = true;
856 break;
857 case 'T':
858 depend_target = q;
859 advance = true;
860 break;
861 case 'Q':
862 depend_target = quote_for_make(q);
863 advance = true;
864 break;
865 default:
866 report_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE,
867 "unknown dependency option `-M%c'", p[2]);
868 break;
869 }
870 if (advance && (!q || !q[0])) {
871 report_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE,
872 "option `-M%c' requires a parameter", p[2]);
873 break;
874 }
875 break;
876
877 case '-':
878 {
879 int s;
880
881 if (p[2] == 0) { /* -- => stop processing options */
882 stopoptions = 1;
883 break;
884 }
885 for (s = 0; textopts[s].label; s++) {
886 if (!nasm_stricmp(p + 2, textopts[s].label)) {
887 break;
888 }
889 }
890
891 switch (s) {
892
893 case OPT_PREFIX:
894 case OPT_POSTFIX:
895 {
896 if (!q) {
897 report_error(ERR_NONFATAL | ERR_NOFILE |
898 ERR_USAGE,
899 "option `--%s' requires an argument",
900 p + 2);
901 break;
902 } else {
903 advance = 1, param = q;
904 }
905
906 if (s == OPT_PREFIX) {
907 strncpy(lprefix, param, PREFIX_MAX - 1);
908 lprefix[PREFIX_MAX - 1] = 0;
909 break;
910 }
911 if (s == OPT_POSTFIX) {
912 strncpy(lpostfix, param, POSTFIX_MAX - 1);
913 lpostfix[POSTFIX_MAX - 1] = 0;
914 break;
915 }
916 break;
917 }
918 default:
919 {
920 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
921 "unrecognised option `--%s'", p + 2);
922 break;
923 }
924 }
925 break;
926 }
927
928 default:
929 if (!ofmt->setinfo(GI_SWITCH, &p))
930 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
931 "unrecognised option `-%c'", p[1]);
932 break;
933 }
934 } else {
935 if (*inname) {
936 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
937 "more than one input file specified");
938 } else {
939 copy_filename(inname, p);
940 }
941 }
942
943 return advance;
944 }
945
946 #define ARG_BUF_DELTA 128
947
948 static void process_respfile(FILE * rfile)
949 {
950 char *buffer, *p, *q, *prevarg;
951 int bufsize, prevargsize;
952
953 bufsize = prevargsize = ARG_BUF_DELTA;
954 buffer = nasm_malloc(ARG_BUF_DELTA);
955 prevarg = nasm_malloc(ARG_BUF_DELTA);
956 prevarg[0] = '\0';
957
958 while (1) { /* Loop to handle all lines in file */
959 p = buffer;
960 while (1) { /* Loop to handle long lines */
961 q = fgets(p, bufsize - (p - buffer), rfile);
962 if (!q)
963 break;
964 p += strlen(p);
965 if (p > buffer && p[-1] == '\n')
966 break;
967 if (p - buffer > bufsize - 10) {
968 int offset;
969 offset = p - buffer;
970 bufsize += ARG_BUF_DELTA;
971 buffer = nasm_realloc(buffer, bufsize);
972 p = buffer + offset;
973 }
974 }
975
976 if (!q && p == buffer) {
977 if (prevarg[0])
978 process_arg(prevarg, NULL);
979 nasm_free(buffer);
980 nasm_free(prevarg);
981 return;
982 }
983
984 /*
985 * Play safe: remove CRs, LFs and any spurious ^Zs, if any of
986 * them are present at the end of the line.
987 */
988 *(p = &buffer[strcspn(buffer, "\r\n\032")]) = '\0';
989
990 while (p > buffer && nasm_isspace(p[-1]))
991 *--p = '\0';
992
993 p = buffer;
994 while (nasm_isspace(*p))
995 p++;
996
997 if (process_arg(prevarg, p))
998 *p = '\0';
999
1000 if ((int) strlen(p) > prevargsize - 10) {
1001 prevargsize += ARG_BUF_DELTA;
1002 prevarg = nasm_realloc(prevarg, prevargsize);
1003 }
1004 strncpy(prevarg, p, prevargsize);
1005 }
1006 }
1007
1008 /* Function to process args from a string of args, rather than the
1009 * argv array. Used by the environment variable and response file
1010 * processing.
1011 */
1012 static void process_args(char *args)
1013 {
1014 char *p, *q, *arg, *prevarg;
1015 char separator = ' ';
1016
1017 p = args;
1018 if (*p && *p != '-')
1019 separator = *p++;
1020 arg = NULL;
1021 while (*p) {
1022 q = p;
1023 while (*p && *p != separator)
1024 p++;
1025 while (*p == separator)
1026 *p++ = '\0';
1027 prevarg = arg;
1028 arg = q;
1029 if (process_arg(prevarg, arg))
1030 arg = NULL;
1031 }
1032 if (arg)
1033 process_arg(arg, NULL);
1034 }
1035
1036 static void process_response_file(const char *file)
1037 {
1038 char str[2048];
1039 FILE *f = fopen(file, "r");
1040 if (!f) {
1041 perror(file);
1042 exit(-1);
1043 }
1044 while (fgets(str, sizeof str, f)) {
1045 process_args(str);
1046 }
1047 fclose(f);
1048 }
1049
1050 static void parse_cmdline(int argc, char **argv)
1051 {
1052 FILE *rfile;
1053 char *envreal, *envcopy = NULL, *p, *arg;
1054 int i;
1055
1056 *inname = *outname = *listname = *errname = '\0';
1057 for (i = 0; i <= ERR_WARN_MAX; i++)
1058 warning_on_global[i] = warnings[i].enabled;
1059
1060 /*
1061 * First, process the NASMENV environment variable.
1062 */
1063 envreal = getenv("NASMENV");
1064 arg = NULL;
1065 if (envreal) {
1066 envcopy = nasm_strdup(envreal);
1067 process_args(envcopy);
1068 nasm_free(envcopy);
1069 }
1070
1071 /*
1072 * Now process the actual command line.
1073 */
1074 while (--argc) {
1075 bool advance;
1076 argv++;
1077 if (argv[0][0] == '@') {
1078 /* We have a response file, so process this as a set of
1079 * arguments like the environment variable. This allows us
1080 * to have multiple arguments on a single line, which is
1081 * different to the -@resp file processing below for regular
1082 * NASM.
1083 */
1084 process_response_file(argv[0]+1);
1085 argc--;
1086 argv++;
1087 }
1088 if (!stopoptions && argv[0][0] == '-' && argv[0][1] == '@') {
1089 p = get_param(argv[0], argc > 1 ? argv[1] : NULL, &advance);
1090 if (p) {
1091 rfile = fopen(p, "r");
1092 if (rfile) {
1093 process_respfile(rfile);
1094 fclose(rfile);
1095 } else
1096 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
1097 "unable to open response file `%s'", p);
1098 }
1099 } else
1100 advance = process_arg(argv[0], argc > 1 ? argv[1] : NULL);
1101 argv += advance, argc -= advance;
1102 }
1103
1104 /* Look for basic command line typos. This definitely doesn't
1105 catch all errors, but it might help cases of fumbled fingers. */
1106 if (!*inname)
1107 report_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE,
1108 "no input file specified");
1109 else if (!strcmp(inname, errname) ||
1110 !strcmp(inname, outname) ||
1111 !strcmp(inname, listname) ||
1112 (depend_file && !strcmp(inname, depend_file)))
1113 report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
1114 "file `%s' is both input and output file",
1115 inname);
1116
1117 if (*errname) {
1118 error_file = fopen(errname, "w");
1119 if (!error_file) {
1120 error_file = stderr; /* Revert to default! */
1121 report_error(ERR_FATAL | ERR_NOFILE | ERR_USAGE,
1122 "cannot open file `%s' for error messages",
1123 errname);
1124 }
1125 }
1126 }
1127
1128 /* List of directives */
1129 enum directives {
1130 D_NONE, D_ABSOLUTE, D_BITS, D_COMMON, D_CPU, D_DEBUG, D_DEFAULT,
1131 D_EXTERN, D_FLOAT, D_GLOBAL, D_LIST, D_SECTION, D_SEGMENT, D_WARNING
1132 };
1133 static const char *directives[] = {
1134 "", "absolute", "bits", "common", "cpu", "debug", "default",
1135 "extern", "float", "global", "list", "section", "segment", "warning"
1136 };
1137 static enum directives getkw(char **directive, char **value);
1138
1139 static void assemble_file(char *fname, StrList **depend_ptr)
1140 {
1141 char *directive, *value, *p, *q, *special, *line, debugid[80];
1142 insn output_ins;
1143 int i, validid;
1144 bool rn_error;
1145 int32_t seg;
1146 int64_t offs;
1147 struct tokenval tokval;
1148 expr *e;
1149 int pass_max;
1150
1151 if (cmd_sb == 32 && cmd_cpu < IF_386)
1152 report_error(ERR_FATAL, "command line: "
1153 "32-bit segment size requires a higher cpu");
1154
1155 pass_max = prev_offset_changed = (INT_MAX >> 1) + 2; /* Almost unlimited */
1156 for (passn = 1; pass0 <= 2; passn++) {
1157 int pass1, pass2;
1158 ldfunc def_label;
1159
1160 pass1 = pass0 == 2 ? 2 : 1; /* 1, 1, 1, ..., 1, 2 */
1161 pass2 = passn > 1 ? 2 : 1; /* 1, 2, 2, ..., 2, 2 */
1162 /* pass0 0, 0, 0, ..., 1, 2 */
1163
1164 def_label = passn > 1 ? redefine_label : define_label;
1165
1166 globalbits = sb = cmd_sb; /* set 'bits' to command line default */
1167 cpu = cmd_cpu;
1168 if (pass0 == 2) {
1169 if (*listname)
1170 nasmlist.init(listname, report_error);
1171 }
1172 in_abs_seg = false;
1173 global_offset_changed = 0; /* set by redefine_label */
1174 location.segment = ofmt->section(NULL, pass2, &sb);
1175 globalbits = sb;
1176 if (passn > 1) {
1177 saa_rewind(forwrefs);
1178 forwref = saa_rstruct(forwrefs);
1179 raa_free(offsets);
1180 offsets = raa_init();
1181 }
1182 preproc->reset(fname, pass1, report_error, evaluate, &nasmlist,
1183 pass1 == 2 ? depend_ptr : NULL);
1184 memcpy(warning_on, warning_on_global, (ERR_WARN_MAX+1) * sizeof(bool));
1185
1186 globallineno = 0;
1187 if (passn == 1)
1188 location.known = true;
1189 location.offset = offs = GET_CURR_OFFS;
1190
1191 while ((line = preproc->getline())) {
1192 enum directives d;
1193 globallineno++;
1194
1195 /* here we parse our directives; this is not handled by the 'real'
1196 * parser. */
1197 directive = line;
1198 d = getkw(&directive, &value);
1199 if (d) {
1200 int err = 0;
1201
1202 switch (d) {
1203 case D_SEGMENT: /* [SEGMENT n] */
1204 case D_SECTION:
1205 seg = ofmt->section(value, pass2, &sb);
1206 if (seg == NO_SEG) {
1207 report_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
1208 "segment name `%s' not recognized",
1209 value);
1210 } else {
1211 in_abs_seg = false;
1212 location.segment = seg;
1213 }
1214 break;
1215 case D_EXTERN: /* [EXTERN label:special] */
1216 if (*value == '$')
1217 value++; /* skip initial $ if present */
1218 if (pass0 == 2) {
1219 q = value;
1220 while (*q && *q != ':')
1221 q++;
1222 if (*q == ':') {
1223 *q++ = '\0';
1224 ofmt->symdef(value, 0L, 0L, 3, q);
1225 }
1226 } else if (passn == 1) {
1227 q = value;
1228 validid = true;
1229 if (!isidstart(*q))
1230 validid = false;
1231 while (*q && *q != ':') {
1232 if (!isidchar(*q))
1233 validid = false;
1234 q++;
1235 }
1236 if (!validid) {
1237 report_error(ERR_NONFATAL,
1238 "identifier expected after EXTERN");
1239 break;
1240 }
1241 if (*q == ':') {
1242 *q++ = '\0';
1243 special = q;
1244 } else
1245 special = NULL;
1246 if (!is_extern(value)) { /* allow re-EXTERN to be ignored */
1247 int temp = pass0;
1248 pass0 = 1; /* fake pass 1 in labels.c */
1249 declare_as_global(value, special,
1250 report_error);
1251 define_label(value, seg_alloc(), 0L, NULL,
1252 false, true, ofmt, report_error);
1253 pass0 = temp;
1254 }
1255 } /* else pass0 == 1 */
1256 break;
1257 case D_BITS: /* [BITS bits] */
1258 globalbits = sb = get_bits(value);
1259 break;
1260 case D_GLOBAL: /* [GLOBAL symbol:special] */
1261 if (*value == '$')
1262 value++; /* skip initial $ if present */
1263 if (pass0 == 2) { /* pass 2 */
1264 q = value;
1265 while (*q && *q != ':')
1266 q++;
1267 if (*q == ':') {
1268 *q++ = '\0';
1269 ofmt->symdef(value, 0L, 0L, 3, q);
1270 }
1271 } else if (pass2 == 1) { /* pass == 1 */
1272 q = value;
1273 validid = true;
1274 if (!isidstart(*q))
1275 validid = false;
1276 while (*q && *q != ':') {
1277 if (!isidchar(*q))
1278 validid = false;
1279 q++;
1280 }
1281 if (!validid) {
1282 report_error(ERR_NONFATAL,
1283 "identifier expected after GLOBAL");
1284 break;
1285 }
1286 if (*q == ':') {
1287 *q++ = '\0';
1288 special = q;
1289 } else
1290 special = NULL;
1291 declare_as_global(value, special, report_error);
1292 } /* pass == 1 */
1293 break;
1294 case D_COMMON: /* [COMMON symbol size:special] */
1295 if (*value == '$')
1296 value++; /* skip initial $ if present */
1297 if (pass0 == 1) {
1298 p = value;
1299 validid = true;
1300 if (!isidstart(*p))
1301 validid = false;
1302 while (*p && !nasm_isspace(*p)) {
1303 if (!isidchar(*p))
1304 validid = false;
1305 p++;
1306 }
1307 if (!validid) {
1308 report_error(ERR_NONFATAL,
1309 "identifier expected after COMMON");
1310 break;
1311 }
1312 if (*p) {
1313 int64_t size;
1314
1315 while (*p && nasm_isspace(*p))
1316 *p++ = '\0';
1317 q = p;
1318 while (*q && *q != ':')
1319 q++;
1320 if (*q == ':') {
1321 *q++ = '\0';
1322 special = q;
1323 } else
1324 special = NULL;
1325 size = readnum(p, &rn_error);
1326 if (rn_error)
1327 report_error(ERR_NONFATAL,
1328 "invalid size specified"
1329 " in COMMON declaration");
1330 else
1331 define_common(value, seg_alloc(), size,
1332 special, ofmt, report_error);
1333 } else
1334 report_error(ERR_NONFATAL,
1335 "no size specified in"
1336 " COMMON declaration");
1337 } else if (pass0 == 2) { /* pass == 2 */
1338 q = value;
1339 while (*q && *q != ':') {
1340 if (nasm_isspace(*q))
1341 *q = '\0';
1342 q++;
1343 }
1344 if (*q == ':') {
1345 *q++ = '\0';
1346 ofmt->symdef(value, 0L, 0L, 3, q);
1347 }
1348 }
1349 break;
1350 case D_ABSOLUTE: /* [ABSOLUTE address] */
1351 stdscan_reset();
1352 stdscan_bufptr = value;
1353 tokval.t_type = TOKEN_INVALID;
1354 e = evaluate(stdscan, NULL, &tokval, NULL, pass2,
1355 report_error, NULL);
1356 if (e) {
1357 if (!is_reloc(e))
1358 report_error(pass0 ==
1359 1 ? ERR_NONFATAL : ERR_PANIC,
1360 "cannot use non-relocatable expression as "
1361 "ABSOLUTE address");
1362 else {
1363 abs_seg = reloc_seg(e);
1364 abs_offset = reloc_value(e);
1365 }
1366 } else if (passn == 1)
1367 abs_offset = 0x100; /* don't go near zero in case of / */
1368 else
1369 report_error(ERR_PANIC, "invalid ABSOLUTE address "
1370 "in pass two");
1371 in_abs_seg = true;
1372 location.segment = NO_SEG;
1373 break;
1374 case D_DEBUG: /* [DEBUG] */
1375 p = value;
1376 q = debugid;
1377 validid = true;
1378 if (!isidstart(*p))
1379 validid = false;
1380 while (*p && !nasm_isspace(*p)) {
1381 if (!isidchar(*p))
1382 validid = false;
1383 *q++ = *p++;
1384 }
1385 *q++ = 0;
1386 if (!validid) {
1387 report_error(passn == 1 ? ERR_NONFATAL : ERR_PANIC,
1388 "identifier expected after DEBUG");
1389 break;
1390 }
1391 while (*p && nasm_isspace(*p))
1392 p++;
1393 if (pass0 == 2)
1394 ofmt->current_dfmt->debug_directive(debugid, p);
1395 break;
1396 case D_WARNING: /* [WARNING {+|-|*}warn-name] */
1397 while (*value && nasm_isspace(*value))
1398 value++;
1399
1400 switch(*value) {
1401 case '-': validid = 0; value++; break;
1402 case '+': validid = 1; value++; break;
1403 case '*': validid = 2; value++; break;
1404 default: validid = 1; break;
1405 }
1406
1407 for (i = 1; i <= ERR_WARN_MAX; i++)
1408 if (!nasm_stricmp(value, warnings[i].name))
1409 break;
1410 if (i <= ERR_WARN_MAX) {
1411 switch(validid) {
1412 case 0:
1413 warning_on[i] = false;
1414 break;
1415 case 1:
1416 warning_on[i] = true;
1417 break;
1418 case 2:
1419 warning_on[i] = warning_on_global[i];
1420 break;
1421 }
1422 }
1423 else
1424 report_error(ERR_NONFATAL,
1425 "invalid warning id in WARNING directive");
1426 break;
1427 case D_CPU: /* [CPU] */
1428 cpu = get_cpu(value);
1429 break;
1430 case D_LIST: /* [LIST {+|-}] */
1431 while (*value && nasm_isspace(*value))
1432 value++;
1433
1434 if (*value == '+') {
1435 user_nolist = 0;
1436 } else {
1437 if (*value == '-') {
1438 user_nolist = 1;
1439 } else {
1440 err = 1;
1441 }
1442 }
1443 break;
1444 case D_DEFAULT: /* [DEFAULT] */
1445 stdscan_reset();
1446 stdscan_bufptr = value;
1447 tokval.t_type = TOKEN_INVALID;
1448 if (stdscan(NULL, &tokval) == TOKEN_SPECIAL) {
1449 switch ((int)tokval.t_integer) {
1450 case S_REL:
1451 globalrel = 1;
1452 break;
1453 case S_ABS:
1454 globalrel = 0;
1455 break;
1456 default:
1457 err = 1;
1458 break;
1459 }
1460 } else {
1461 err = 1;
1462 }
1463 break;
1464 case D_FLOAT:
1465 if (float_option(value)) {
1466 report_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
1467 "unknown 'float' directive: %s",
1468 value);
1469 }
1470 break;
1471 default:
1472 if (!ofmt->directive(directive, value, pass2))
1473 report_error(pass1 == 1 ? ERR_NONFATAL : ERR_PANIC,
1474 "unrecognised directive [%s]",
1475 directive);
1476 }
1477 if (err) {
1478 report_error(ERR_NONFATAL,
1479 "invalid parameter to [%s] directive",
1480 directive);
1481 }
1482 } else { /* it isn't a directive */
1483
1484 parse_line(pass1, line, &output_ins,
1485 report_error, evaluate, def_label);
1486
1487 if (optimizing > 0) {
1488 if (forwref != NULL && globallineno == forwref->lineno) {
1489 output_ins.forw_ref = true;
1490 do {
1491 output_ins.oprs[forwref->operand].opflags |=
1492 OPFLAG_FORWARD;
1493 forwref = saa_rstruct(forwrefs);
1494 } while (forwref != NULL
1495 && forwref->lineno == globallineno);
1496 } else
1497 output_ins.forw_ref = false;
1498
1499 if (output_ins.forw_ref) {
1500 if (passn == 1) {
1501 for (i = 0; i < output_ins.operands; i++) {
1502 if (output_ins.oprs[i].
1503 opflags & OPFLAG_FORWARD) {
1504 struct forwrefinfo *fwinf =
1505 (struct forwrefinfo *)
1506 saa_wstruct(forwrefs);
1507 fwinf->lineno = globallineno;
1508 fwinf->operand = i;
1509 }
1510 }
1511 }
1512 }
1513 }
1514
1515 /* forw_ref */
1516 if (output_ins.opcode == I_EQU) {
1517 if (pass1 == 1) {
1518 /*
1519 * Special `..' EQUs get processed in pass two,
1520 * except `..@' macro-processor EQUs which are done
1521 * in the normal place.
1522 */
1523 if (!output_ins.label)
1524 report_error(ERR_NONFATAL,
1525 "EQU not preceded by label");
1526
1527 else if (output_ins.label[0] != '.' ||
1528 output_ins.label[1] != '.' ||
1529 output_ins.label[2] == '@') {
1530 if (output_ins.operands == 1 &&
1531 (output_ins.oprs[0].type & IMMEDIATE) &&
1532 output_ins.oprs[0].wrt == NO_SEG) {
1533 bool isext = !!(output_ins.oprs[0].opflags
1534 & OPFLAG_EXTERN);
1535 def_label(output_ins.label,
1536 output_ins.oprs[0].segment,
1537 output_ins.oprs[0].offset, NULL,
1538 false, isext, ofmt,
1539 report_error);
1540 } else if (output_ins.operands == 2
1541 && (output_ins.oprs[0].type & IMMEDIATE)
1542 && (output_ins.oprs[0].type & COLON)
1543 && output_ins.oprs[0].segment == NO_SEG
1544 && output_ins.oprs[0].wrt == NO_SEG
1545 && (output_ins.oprs[1].type & IMMEDIATE)
1546 && output_ins.oprs[1].segment == NO_SEG
1547 && output_ins.oprs[1].wrt == NO_SEG) {
1548 def_label(output_ins.label,
1549 output_ins.oprs[0].offset | SEG_ABS,
1550 output_ins.oprs[1].offset,
1551 NULL, false, false, ofmt,
1552 report_error);
1553 } else
1554 report_error(ERR_NONFATAL,
1555 "bad syntax for EQU");
1556 }
1557 } else {
1558 /*
1559 * Special `..' EQUs get processed here, except
1560 * `..@' macro processor EQUs which are done above.
1561 */
1562 if (output_ins.label[0] == '.' &&
1563 output_ins.label[1] == '.' &&
1564 output_ins.label[2] != '@') {
1565 if (output_ins.operands == 1 &&
1566 (output_ins.oprs[0].type & IMMEDIATE)) {
1567 define_label(output_ins.label,
1568 output_ins.oprs[0].segment,
1569 output_ins.oprs[0].offset,
1570 NULL, false, false, ofmt,
1571 report_error);
1572 } else if (output_ins.operands == 2
1573 && (output_ins.oprs[0].
1574 type & IMMEDIATE)
1575 && (output_ins.oprs[0].type & COLON)
1576 && output_ins.oprs[0].segment ==
1577 NO_SEG
1578 && (output_ins.oprs[1].
1579 type & IMMEDIATE)
1580 && output_ins.oprs[1].segment ==
1581 NO_SEG) {
1582 define_label(output_ins.label,
1583 output_ins.oprs[0].
1584 offset | SEG_ABS,
1585 output_ins.oprs[1].offset,
1586 NULL, false, false, ofmt,
1587 report_error);
1588 } else
1589 report_error(ERR_NONFATAL,
1590 "bad syntax for EQU");
1591 }
1592 }
1593 } else { /* instruction isn't an EQU */
1594
1595 if (pass1 == 1) {
1596
1597 int64_t l = insn_size(location.segment, offs, sb, cpu,
1598 &output_ins, report_error);
1599
1600 /* if (using_debug_info) && output_ins.opcode != -1) */
1601 if (using_debug_info)
1602 { /* fbk 03/25/01 */
1603 /* this is done here so we can do debug type info */
1604 int32_t typeinfo =
1605 TYS_ELEMENTS(output_ins.operands);
1606 switch (output_ins.opcode) {
1607 case I_RESB:
1608 typeinfo =
1609 TYS_ELEMENTS(output_ins.oprs[0].
1610 offset) | TY_BYTE;
1611 break;
1612 case I_RESW:
1613 typeinfo =
1614 TYS_ELEMENTS(output_ins.oprs[0].
1615 offset) | TY_WORD;
1616 break;
1617 case I_RESD:
1618 typeinfo =
1619 TYS_ELEMENTS(output_ins.oprs[0].
1620 offset) | TY_DWORD;
1621 break;
1622 case I_RESQ:
1623 typeinfo =
1624 TYS_ELEMENTS(output_ins.oprs[0].
1625 offset) | TY_QWORD;
1626 break;
1627 case I_REST:
1628 typeinfo =
1629 TYS_ELEMENTS(output_ins.oprs[0].
1630 offset) | TY_TBYTE;
1631 break;
1632 case I_RESO:
1633 typeinfo =
1634 TYS_ELEMENTS(output_ins.oprs[0].
1635 offset) | TY_OWORD;
1636 break;
1637 case I_RESY:
1638 typeinfo =
1639 TYS_ELEMENTS(output_ins.oprs[0].
1640 offset) | TY_YWORD;
1641 break;
1642 case I_DB:
1643 typeinfo |= TY_BYTE;
1644 break;
1645 case I_DW:
1646 typeinfo |= TY_WORD;
1647 break;
1648 case I_DD:
1649 if (output_ins.eops_float)
1650 typeinfo |= TY_FLOAT;
1651 else
1652 typeinfo |= TY_DWORD;
1653 break;
1654 case I_DQ:
1655 typeinfo |= TY_QWORD;
1656 break;
1657 case I_DT:
1658 typeinfo |= TY_TBYTE;
1659 break;
1660 case I_DO:
1661 typeinfo |= TY_OWORD;
1662 break;
1663 case I_DY:
1664 typeinfo |= TY_YWORD;
1665 break;
1666 default:
1667 typeinfo = TY_LABEL;
1668
1669 }
1670
1671 ofmt->current_dfmt->debug_typevalue(typeinfo);
1672
1673 }
1674 if (l != -1) {
1675 offs += l;
1676 SET_CURR_OFFS(offs);
1677 }
1678 /*
1679 * else l == -1 => invalid instruction, which will be
1680 * flagged as an error on pass 2
1681 */
1682
1683 } else {
1684 offs += assemble(location.segment, offs, sb, cpu,
1685 &output_ins, ofmt, report_error,
1686 &nasmlist);
1687 SET_CURR_OFFS(offs);
1688
1689 }
1690 } /* not an EQU */
1691 cleanup_insn(&output_ins);
1692 }
1693 nasm_free(line);
1694 location.offset = offs = GET_CURR_OFFS;
1695 } /* end while (line = preproc->getline... */
1696 if (pass1 == 2 && global_offset_changed)
1697 report_error(ERR_NONFATAL,
1698 "phase error detected at end of assembly.");
1699
1700 if (pass1 == 1)
1701 preproc->cleanup(1);
1702
1703 if (pass1 == 1 && terminate_after_phase) {
1704 fclose(ofile);
1705 remove(outname);
1706 if (want_usage)
1707 usage();
1708 exit(1);
1709 }
1710
1711 if ((passn > 1 && !global_offset_changed) || pass0 == 2)
1712 pass0++;
1713 else if (global_offset_changed && global_offset_changed < prev_offset_changed) {
1714 prev_offset_changed = global_offset_changed;
1715 stall_count = 0;
1716 }
1717 else stall_count++;
1718
1719 if((stall_count > 997) || (passn >= pass_max))
1720 /* We get here if the labels don't converge
1721 * Example: FOO equ FOO + 1
1722 */
1723 report_error(ERR_NONFATAL,
1724 "Can't find valid values for all labels "
1725 "after %d passes, giving up.\n"
1726 " Possible cause: recursive equ's.", passn);
1727 }
1728
1729 preproc->cleanup(0);
1730 nasmlist.cleanup();
1731 if (opt_verbose_info) /* -On and -Ov switches */
1732 fprintf(stdout,
1733 "info:: assembly required 1+%d+1 passes\n", passn-3);
1734 } /* exit from assemble_file (...) */
1735
1736 static enum directives getkw(char **directive, char **value)
1737 {
1738 char *p, *q, *buf;
1739
1740 buf = *directive;
1741
1742 /* allow leading spaces or tabs */
1743 while (*buf == ' ' || *buf == '\t')
1744 buf++;
1745
1746 if (*buf != '[')
1747 return 0;
1748
1749 p = buf;
1750
1751 while (*p && *p != ']')
1752 p++;
1753
1754 if (!*p)
1755 return 0;
1756
1757 q = p++;
1758
1759 while (*p && *p != ';') {
1760 if (!nasm_isspace(*p))
1761 return 0;
1762 p++;
1763 }
1764 q[1] = '\0';
1765
1766 *directive = p = buf + 1;
1767 while (*buf && *buf != ' ' && *buf != ']' && *buf != '\t')
1768 buf++;
1769 if (*buf == ']') {
1770 *buf = '\0';
1771 *value = buf;
1772 } else {
1773 *buf++ = '\0';
1774 while (nasm_isspace(*buf))
1775 buf++; /* beppu - skip leading whitespace */
1776 *value = buf;
1777 while (*buf != ']')
1778 buf++;
1779 *buf++ = '\0';
1780 }
1781
1782 return bsii(*directive, directives, elements(directives));
1783 }
1784
1785 /**
1786 * gnu style error reporting
1787 * This function prints an error message to error_file in the
1788 * style used by GNU. An example would be:
1789 * file.asm:50: error: blah blah blah
1790 * where file.asm is the name of the file, 50 is the line number on
1791 * which the error occurs (or is detected) and "error:" is one of
1792 * the possible optional diagnostics -- it can be "error" or "warning"
1793 * or something else. Finally the line terminates with the actual
1794 * error message.
1795 *
1796 * @param severity the severity of the warning or error
1797 * @param fmt the printf style format string
1798 */
1799 static void report_error_gnu(int severity, const char *fmt, ...)
1800 {
1801 va_list ap;
1802
1803 if (is_suppressed_warning(severity))
1804 return;
1805
1806 if (severity & ERR_NOFILE)
1807 fputs("nasm: ", error_file);
1808 else {
1809 char *currentfile = NULL;
1810 int32_t lineno = 0;
1811 src_get(&lineno, &currentfile);
1812 fprintf(error_file, "%s:%"PRId32": ", currentfile, lineno);
1813 nasm_free(currentfile);
1814 }
1815 va_start(ap, fmt);
1816 report_error_common(severity, fmt, ap);
1817 va_end(ap);
1818 }
1819
1820 /**
1821 * MS style error reporting
1822 * This function prints an error message to error_file in the
1823 * style used by Visual C and some other Microsoft tools. An example
1824 * would be:
1825 * file.asm(50) : error: blah blah blah
1826 * where file.asm is the name of the file, 50 is the line number on
1827 * which the error occurs (or is detected) and "error:" is one of
1828 * the possible optional diagnostics -- it can be "error" or "warning"
1829 * or something else. Finally the line terminates with the actual
1830 * error message.
1831 *
1832 * @param severity the severity of the warning or error
1833 * @param fmt the printf style format string
1834 */
1835 static void report_error_vc(int severity, const char *fmt, ...)
1836 {
1837 va_list ap;
1838
1839 if (is_suppressed_warning(severity))
1840 return;
1841
1842 if (severity & ERR_NOFILE)
1843 fputs("nasm: ", error_file);
1844 else {
1845 char *currentfile = NULL;
1846 int32_t lineno = 0;
1847 src_get(&lineno, &currentfile);
1848 fprintf(error_file, "%s(%"PRId32") : ", currentfile, lineno);
1849 nasm_free(currentfile);
1850 }
1851 va_start(ap, fmt);
1852 report_error_common(severity, fmt, ap);
1853 va_end(ap);
1854 }
1855
1856 /**
1857 * check for supressed warning
1858 * checks for suppressed warning or pass one only warning and we're
1859 * not in pass 1
1860 *
1861 * @param severity the severity of the warning or error
1862 * @return true if we should abort error/warning printing
1863 */
1864 static bool is_suppressed_warning(int severity)
1865 {
1866 /*
1867 * See if it's a suppressed warning.
1868 */
1869 return (severity & ERR_MASK) == ERR_WARNING &&
1870 (((severity & ERR_WARN_MASK) != 0 &&
1871 !warning_on[(severity & ERR_WARN_MASK) >> ERR_WARN_SHR]) ||
1872 /* See if it's a pass-one only warning and we're not in pass one. */
1873 ((severity & ERR_PASS1) && pass0 != 1) ||
1874 ((severity & ERR_PASS2) && pass0 != 2));
1875 }
1876
1877 /**
1878 * common error reporting
1879 * This is the common back end of the error reporting schemes currently
1880 * implemented. It prints the nature of the warning and then the
1881 * specific error message to error_file and may or may not return. It
1882 * doesn't return if the error severity is a "panic" or "debug" type.
1883 *
1884 * @param severity the severity of the warning or error
1885 * @param fmt the printf style format string
1886 */
1887 static void report_error_common(int severity, const char *fmt,
1888 va_list args)
1889 {
1890 switch (severity & (ERR_MASK|ERR_NO_SEVERITY)) {
1891 case ERR_WARNING:
1892 fputs("warning: ", error_file);
1893 break;
1894 case ERR_NONFATAL:
1895 fputs("error: ", error_file);
1896 break;
1897 case ERR_FATAL:
1898 fputs("fatal: ", error_file);
1899 break;
1900 case ERR_PANIC:
1901 fputs("panic: ", error_file);
1902 break;
1903 case ERR_DEBUG:
1904 fputs("debug: ", error_file);
1905 break;
1906 default:
1907 break;
1908 }
1909
1910 vfprintf(error_file, fmt, args);
1911 putc('\n', error_file);
1912
1913 if (severity & ERR_USAGE)
1914 want_usage = true;
1915
1916 switch (severity & ERR_MASK) {
1917 case ERR_DEBUG:
1918 /* no further action, by definition */
1919 break;
1920 case ERR_WARNING:
1921 if (warning_on[0]) /* Treat warnings as errors */
1922 terminate_after_phase = true;
1923 break;
1924 case ERR_NONFATAL:
1925 terminate_after_phase = true;
1926 break;
1927 case ERR_FATAL:
1928 if (ofile) {
1929 fclose(ofile);
1930 remove(outname);
1931 }
1932 if (want_usage)
1933 usage();
1934 exit(1); /* instantly die */
1935 break; /* placate silly compilers */
1936 case ERR_PANIC:
1937 fflush(NULL);
1938 /* abort(); *//* halt, catch fire, and dump core */
1939 exit(3);
1940 break;
1941 }
1942 }
1943
1944 static void usage(void)
1945 {
1946 fputs("type `nasm -h' for help\n", error_file);
1947 }
1948
1949 static void register_output_formats(void)
1950 {
1951 ofmt = ofmt_register(report_error);
1952 }
1953
1954 #define BUF_DELTA 512
1955
1956 static FILE *no_pp_fp;
1957 static efunc no_pp_err;
1958 static ListGen *no_pp_list;
1959 static int32_t no_pp_lineinc;
1960
1961 static void no_pp_reset(char *file, int pass, efunc error, evalfunc eval,
1962 ListGen * listgen, StrList **deplist)
1963 {
1964 src_set_fname(nasm_strdup(file));
1965 src_set_linnum(0);
1966 no_pp_lineinc = 1;
1967 no_pp_err = error;
1968 no_pp_fp = fopen(file, "r");
1969 if (!no_pp_fp)
1970 no_pp_err(ERR_FATAL | ERR_NOFILE,
1971 "unable to open input file `%s'", file);
1972 no_pp_list = listgen;
1973 (void)pass; /* placate compilers */
1974 (void)eval; /* placate compilers */
1975
1976 if (deplist) {
1977 StrList *sl = nasm_malloc(strlen(file)+1+sizeof sl->next);
1978 sl->next = NULL;
1979 strcpy(sl->str, file);
1980 *deplist = sl;
1981 }
1982 }
1983
1984 static char *no_pp_getline(void)
1985 {
1986 char *buffer, *p, *q;
1987 int bufsize;
1988
1989 bufsize = BUF_DELTA;
1990 buffer = nasm_malloc(BUF_DELTA);
1991 src_set_linnum(src_get_linnum() + no_pp_lineinc);
1992
1993 while (1) { /* Loop to handle %line */
1994
1995 p = buffer;
1996 while (1) { /* Loop to handle long lines */
1997 q = fgets(p, bufsize - (p - buffer), no_pp_fp);
1998 if (!q)
1999 break;
2000 p += strlen(p);
2001 if (p > buffer && p[-1] == '\n')
2002 break;
2003 if (p - buffer > bufsize - 10) {
2004 int offset;
2005 offset = p - buffer;
2006 bufsize += BUF_DELTA;
2007 buffer = nasm_realloc(buffer, bufsize);
2008 p = buffer + offset;
2009 }
2010 }
2011
2012 if (!q && p == buffer) {
2013 nasm_free(buffer);
2014 return NULL;
2015 }
2016
2017 /*
2018 * Play safe: remove CRs, LFs and any spurious ^Zs, if any of
2019 * them are present at the end of the line.
2020 */
2021 buffer[strcspn(buffer, "\r\n\032")] = '\0';
2022
2023 if (!nasm_strnicmp(buffer, "%line", 5)) {
2024 int32_t ln;
2025 int li;
2026 char *nm = nasm_malloc(strlen(buffer));
2027 if (sscanf(buffer + 5, "%"PRId32"+%d %s", &ln, &li, nm) == 3) {
2028 nasm_free(src_set_fname(nm));
2029 src_set_linnum(ln);
2030 no_pp_lineinc = li;
2031 continue;
2032 }
2033 nasm_free(nm);
2034 }
2035 break;
2036 }
2037
2038 no_pp_list->line(LIST_READ, buffer);
2039
2040 return buffer;
2041 }
2042
2043 static void no_pp_cleanup(int pass)
2044 {
2045 (void)pass; /* placate GCC */
2046 fclose(no_pp_fp);
2047 }
2048
2049 static uint32_t get_cpu(char *value)
2050 {
2051 if (!strcmp(value, "8086"))
2052 return IF_8086;
2053 if (!strcmp(value, "186"))
2054 return IF_186;
2055 if (!strcmp(value, "286"))
2056 return IF_286;
2057 if (!strcmp(value, "386"))
2058 return IF_386;
2059 if (!strcmp(value, "486"))
2060 return IF_486;
2061 if (!strcmp(value, "586") || !nasm_stricmp(value, "pentium"))
2062 return IF_PENT;
2063 if (!strcmp(value, "686") ||
2064 !nasm_stricmp(value, "ppro") ||
2065 !nasm_stricmp(value, "pentiumpro") || !nasm_stricmp(value, "p2"))
2066 return IF_P6;
2067 if (!nasm_stricmp(value, "p3") || !nasm_stricmp(value, "katmai"))
2068 return IF_KATMAI;
2069 if (!nasm_stricmp(value, "p4") || /* is this right? -- jrc */
2070 !nasm_stricmp(value, "willamette"))
2071 return IF_WILLAMETTE;
2072 if (!nasm_stricmp(value, "prescott"))
2073 return IF_PRESCOTT;
2074 if (!nasm_stricmp(value, "x64") ||
2075 !nasm_stricmp(value, "x86-64"))
2076 return IF_X86_64;
2077 if (!nasm_stricmp(value, "ia64") ||
2078 !nasm_stricmp(value, "ia-64") ||
2079 !nasm_stricmp(value, "itanium") ||
2080 !nasm_stricmp(value, "itanic") || !nasm_stricmp(value, "merced"))
2081 return IF_IA64;
2082
2083 report_error(pass0 < 2 ? ERR_NONFATAL : ERR_FATAL,
2084 "unknown 'cpu' type");
2085
2086 return IF_PLEVEL; /* the maximum level */
2087 }
2088
2089 static int get_bits(char *value)
2090 {
2091 int i;
2092
2093 if ((i = atoi(value)) == 16)
2094 return i; /* set for a 16-bit segment */
2095 else if (i == 32) {
2096 if (cpu < IF_386) {
2097 report_error(ERR_NONFATAL,
2098 "cannot specify 32-bit segment on processor below a 386");
2099 i = 16;
2100 }
2101 } else if (i == 64) {
2102 if (cpu < IF_X86_64) {
2103 report_error(ERR_NONFATAL,
2104 "cannot specify 64-bit segment on processor below an x86-64");
2105 i = 16;
2106 }
2107 if (i != maxbits) {
2108 report_error(ERR_NONFATAL,
2109 "%s output format does not support 64-bit code",
2110 ofmt->shortname);
2111 i = 16;
2112 }
2113 } else {
2114 report_error(pass0 < 2 ? ERR_NONFATAL : ERR_FATAL,
2115 "`%s' is not a valid segment size; must be 16, 32 or 64",
2116 value);
2117 i = 16;
2118 }
2119 return i;
2120 }
2121
2122 /* end of nasm.c */
Adding AVX-512 features