1 | /* ----------------------------------------------------------------------- * |
2 | * |
3 | * Copyright 1996-2018 The NASM Authors - All Rights Reserved |
4 | * See the file AUTHORS included with the NASM distribution for |
5 | * the specific copyright holders. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following |
9 | * conditions are met: |
10 | * |
11 | * * Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * * Redistributions in binary form must reproduce the above |
14 | * copyright notice, this list of conditions and the following |
15 | * disclaimer in the documentation and/or other materials provided |
16 | * with the distribution. |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
19 | * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
20 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
21 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
22 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
25 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
26 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
29 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
30 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
31 | * |
32 | * ----------------------------------------------------------------------- */ |
33 | |
34 | /* |
35 | * The Netwide Assembler main program module |
36 | */ |
37 | |
38 | #include "compiler.h" |
39 | |
40 | #include <stdio.h> |
41 | #include <stdarg.h> |
42 | #include <stdlib.h> |
43 | #include <string.h> |
44 | #include <ctype.h> |
45 | #include <limits.h> |
46 | |
47 | #include "nasm.h" |
48 | #include "nasmlib.h" |
49 | #include "error.h" |
50 | #include "saa.h" |
51 | #include "raa.h" |
52 | #include "float.h" |
53 | #include "stdscan.h" |
54 | #include "insns.h" |
55 | #include "preproc.h" |
56 | #include "parser.h" |
57 | #include "eval.h" |
58 | #include "assemble.h" |
59 | #include "labels.h" |
60 | #include "outform.h" |
61 | #include "listing.h" |
62 | #include "iflag.h" |
63 | #include "ver.h" |
64 | |
65 | /* |
66 | * This is the maximum number of optimization passes to do. If we ever |
67 | * find a case where the optimizer doesn't naturally converge, we might |
68 | * have to drop this value so the assembler doesn't appear to just hang. |
69 | */ |
70 | #define MAX_OPTIMIZE (INT_MAX >> 1) |
71 | |
72 | struct forwrefinfo { /* info held on forward refs. */ |
73 | int lineno; |
74 | int operand; |
75 | }; |
76 | |
77 | static void parse_cmdline(int, char **, int); |
78 | static void assemble_file(const char *, StrList **); |
79 | static bool skip_this_pass(int severity); |
80 | static void nasm_verror_asm(int severity, const char *fmt, va_list args); |
81 | static void usage(void); |
82 | static void help(char xopt); |
83 | |
84 | struct error_format { |
85 | const char *beforeline; /* Before line number, if present */ |
86 | const char *afterline; /* After line number, if present */ |
87 | const char *beforemsg; /* Before actual message */ |
88 | }; |
89 | |
90 | static const struct error_format errfmt_gnu = { ":" , "" , ": " }; |
91 | static const struct error_format errfmt_msvc = { "(" , ")" , " : " }; |
92 | static const struct error_format *errfmt = &errfmt_gnu; |
93 | |
94 | static bool using_debug_info, opt_verbose_info; |
95 | static const char *debug_format; |
96 | |
97 | #ifndef ABORT_ON_PANIC |
98 | # define ABORT_ON_PANIC 0 |
99 | #endif |
100 | static bool abort_on_panic = ABORT_ON_PANIC; |
101 | static bool keep_all; |
102 | |
103 | bool tasm_compatible_mode = false; |
104 | int pass0; |
105 | int64_t passn; |
106 | static int pass1, pass2; /* XXX: Get rid of these, they are redundant */ |
107 | int globalrel = 0; |
108 | int globalbnd = 0; |
109 | |
110 | struct compile_time official_compile_time; |
111 | |
112 | const char *inname; |
113 | const char *outname; |
114 | static const char *listname; |
115 | static const char *errname; |
116 | |
117 | static int64_t globallineno; /* for forward-reference tracking */ |
118 | |
119 | /* static int pass = 0; */ |
120 | const struct ofmt *ofmt = &OF_DEFAULT; |
121 | const struct ofmt_alias *ofmt_alias = NULL; |
122 | const struct dfmt *dfmt; |
123 | |
124 | FILE *error_file; /* Where to write error messages */ |
125 | |
126 | FILE *ofile = NULL; |
127 | struct optimization optimizing = |
128 | { MAX_OPTIMIZE, OPTIM_ALL_ENABLED }; /* number of optimization passes to take */ |
129 | static int cmd_sb = 16; /* by default */ |
130 | |
131 | iflag_t cpu; |
132 | static iflag_t cmd_cpu; |
133 | |
134 | struct location location; |
135 | bool in_absolute; /* Flag we are in ABSOLUTE seg */ |
136 | struct location absolute; /* Segment/offset inside ABSOLUTE */ |
137 | |
138 | static struct RAA *offsets; |
139 | |
140 | static struct SAA *forwrefs; /* keep track of forward references */ |
141 | static const struct forwrefinfo *forwref; |
142 | |
143 | static const struct preproc_ops *preproc; |
144 | static StrList *include_path; |
145 | bool pp_noline; /* Ignore %line directives */ |
146 | |
147 | #define OP_NORMAL (1U << 0) |
148 | #define OP_PREPROCESS (1U << 1) |
149 | #define OP_DEPEND (1U << 2) |
150 | |
151 | static unsigned int operating_mode; |
152 | |
153 | /* Dependency flags */ |
154 | static bool depend_emit_phony = false; |
155 | static bool depend_missing_ok = false; |
156 | static const char *depend_target = NULL; |
157 | static const char *depend_file = NULL; |
158 | StrList *depend_list; |
159 | |
160 | static bool want_usage; |
161 | static bool terminate_after_phase; |
162 | bool user_nolist = false; |
163 | |
164 | static char *quote_for_pmake(const char *str); |
165 | static char *quote_for_wmake(const char *str); |
166 | static char *(*quote_for_make)(const char *) = quote_for_pmake; |
167 | |
168 | /* |
169 | * Execution limits that can be set via a command-line option or %pragma |
170 | */ |
171 | |
172 | #define LIMIT_MAX_VAL (INT64_MAX >> 1) /* Effectively unlimited */ |
173 | |
174 | int64_t nasm_limit[LIMIT_MAX+1] = |
175 | { LIMIT_MAX_VAL, 1000, 1000000, 1000000, 1000000, 2000000000 }; |
176 | |
177 | struct limit_info { |
178 | const char *name; |
179 | const char *help; |
180 | }; |
181 | static const struct limit_info limit_info[LIMIT_MAX+1] = { |
182 | { "passes" , "total number of passes" }, |
183 | { "stalled-passes" , "number of passes without forward progress" }, |
184 | { "macro-levels" , "levels of macro expansion" }, |
185 | { "rep" , "%rep count" }, |
186 | { "eval" , "expression evaluation descent" }, |
187 | { "lines" , "total source lines processed" } |
188 | }; |
189 | |
190 | enum directive_result |
191 | nasm_set_limit(const char *limit, const char *valstr) |
192 | { |
193 | int i; |
194 | int64_t val; |
195 | bool rn_error; |
196 | int errlevel; |
197 | |
198 | for (i = 0; i <= LIMIT_MAX; i++) { |
199 | if (!nasm_stricmp(limit, limit_info[i].name)) |
200 | break; |
201 | } |
202 | if (i > LIMIT_MAX) { |
203 | if (passn == 0) |
204 | errlevel = ERR_WARNING|ERR_NOFILE|ERR_USAGE; |
205 | else |
206 | errlevel = ERR_WARNING|ERR_PASS1|WARN_UNKNOWN_PRAGMA; |
207 | nasm_error(errlevel, "unknown limit: `%s'" , limit); |
208 | return DIRR_ERROR; |
209 | } |
210 | |
211 | if (!nasm_stricmp(valstr, "unlimited" )) { |
212 | val = LIMIT_MAX_VAL; |
213 | } else { |
214 | val = readnum(valstr, &rn_error); |
215 | if (rn_error || val < 0) { |
216 | if (passn == 0) |
217 | errlevel = ERR_WARNING|ERR_NOFILE|ERR_USAGE; |
218 | else |
219 | errlevel = ERR_WARNING|ERR_PASS1|WARN_BAD_PRAGMA; |
220 | nasm_error(errlevel, "invalid limit value: `%s'" , limit); |
221 | return DIRR_ERROR; |
222 | } |
223 | if (val > LIMIT_MAX_VAL) |
224 | val = LIMIT_MAX_VAL; |
225 | } |
226 | |
227 | nasm_limit[i] = val; |
228 | return DIRR_OK; |
229 | } |
230 | |
231 | int64_t switch_segment(int32_t segment) |
232 | { |
233 | location.segment = segment; |
234 | if (segment == NO_SEG) { |
235 | location.offset = absolute.offset; |
236 | in_absolute = true; |
237 | } else { |
238 | location.offset = raa_read(offsets, segment); |
239 | in_absolute = false; |
240 | } |
241 | return location.offset; |
242 | } |
243 | |
244 | static void set_curr_offs(int64_t l_off) |
245 | { |
246 | if (in_absolute) |
247 | absolute.offset = l_off; |
248 | else |
249 | offsets = raa_write(offsets, location.segment, l_off); |
250 | } |
251 | |
252 | static void increment_offset(int64_t delta) |
253 | { |
254 | if (unlikely(delta == 0)) |
255 | return; |
256 | |
257 | location.offset += delta; |
258 | set_curr_offs(location.offset); |
259 | } |
260 | |
261 | static void nasm_fputs(const char *line, FILE * outfile) |
262 | { |
263 | if (outfile) { |
264 | fputs(line, outfile); |
265 | putc('\n', outfile); |
266 | } else |
267 | puts(line); |
268 | } |
269 | |
270 | /* |
271 | * Define system-defined macros that are not part of |
272 | * macros/standard.mac. |
273 | */ |
274 | static void define_macros(void) |
275 | { |
276 | const struct compile_time * const oct = &official_compile_time; |
277 | char temp[128]; |
278 | |
279 | if (oct->have_local) { |
280 | strftime(temp, sizeof temp, "__DATE__=\"%Y-%m-%d\"" , &oct->local); |
281 | preproc->pre_define(temp); |
282 | strftime(temp, sizeof temp, "__DATE_NUM__=%Y%m%d" , &oct->local); |
283 | preproc->pre_define(temp); |
284 | strftime(temp, sizeof temp, "__TIME__=\"%H:%M:%S\"" , &oct->local); |
285 | preproc->pre_define(temp); |
286 | strftime(temp, sizeof temp, "__TIME_NUM__=%H%M%S" , &oct->local); |
287 | preproc->pre_define(temp); |
288 | } |
289 | |
290 | if (oct->have_gm) { |
291 | strftime(temp, sizeof temp, "__UTC_DATE__=\"%Y-%m-%d\"" , &oct->gm); |
292 | preproc->pre_define(temp); |
293 | strftime(temp, sizeof temp, "__UTC_DATE_NUM__=%Y%m%d" , &oct->gm); |
294 | preproc->pre_define(temp); |
295 | strftime(temp, sizeof temp, "__UTC_TIME__=\"%H:%M:%S\"" , &oct->gm); |
296 | preproc->pre_define(temp); |
297 | strftime(temp, sizeof temp, "__UTC_TIME_NUM__=%H%M%S" , &oct->gm); |
298 | preproc->pre_define(temp); |
299 | } |
300 | |
301 | if (oct->have_posix) { |
302 | snprintf(temp, sizeof temp, "__POSIX_TIME__=%" PRId64, oct->posix); |
303 | preproc->pre_define(temp); |
304 | } |
305 | |
306 | /* |
307 | * In case if output format is defined by alias |
308 | * we have to put shortname of the alias itself here |
309 | * otherwise ABI backward compatibility gets broken. |
310 | */ |
311 | snprintf(temp, sizeof(temp), "__OUTPUT_FORMAT__=%s" , |
312 | ofmt_alias ? ofmt_alias->shortname : ofmt->shortname); |
313 | preproc->pre_define(temp); |
314 | |
315 | /* |
316 | * Output-format specific macros. |
317 | */ |
318 | if (ofmt->stdmac) |
319 | preproc->extra_stdmac(ofmt->stdmac); |
320 | |
321 | /* |
322 | * Debug format, if any |
323 | */ |
324 | if (dfmt != &null_debug_form) { |
325 | snprintf(temp, sizeof(temp), "__DEBUG_FORMAT__=%s" , dfmt->shortname); |
326 | preproc->pre_define(temp); |
327 | } |
328 | } |
329 | |
330 | /* |
331 | * Initialize the preprocessor, set up the include path, and define |
332 | * the system-included macros. This is called between passes 1 and 2 |
333 | * of parsing the command options; ofmt and dfmt are defined at this |
334 | * point. |
335 | * |
336 | * Command-line specified preprocessor directives (-p, -d, -u, |
337 | * --pragma, --before) are processed after this function. |
338 | */ |
339 | static void preproc_init(void) |
340 | { |
341 | StrList *ip, *iptmp; |
342 | |
343 | preproc->init(); |
344 | define_macros(); |
345 | list_for_each_safe(ip, iptmp, include_path) { |
346 | preproc->include_path(ip->str); |
347 | nasm_free(ip); |
348 | } |
349 | } |
350 | |
351 | static void emit_dependencies(StrList *list) |
352 | { |
353 | FILE *deps; |
354 | int linepos, len; |
355 | StrList *l, *nl; |
356 | bool wmake = (quote_for_make == quote_for_wmake); |
357 | const char *wrapstr, *nulltarget; |
358 | |
359 | wrapstr = wmake ? " &\n " : " \\\n " ; |
360 | nulltarget = wmake ? "\t%null\n" : "" ; |
361 | |
362 | if (depend_file && strcmp(depend_file, "-" )) { |
363 | deps = nasm_open_write(depend_file, NF_TEXT); |
364 | if (!deps) { |
365 | nasm_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE, |
366 | "unable to write dependency file `%s'" , depend_file); |
367 | return; |
368 | } |
369 | } else { |
370 | deps = stdout; |
371 | } |
372 | |
373 | linepos = fprintf(deps, "%s :" , depend_target); |
374 | list_for_each(l, list) { |
375 | char *file = quote_for_make(l->str); |
376 | len = strlen(file); |
377 | if (linepos + len > 62 && linepos > 1) { |
378 | fputs(wrapstr, deps); |
379 | linepos = 1; |
380 | } |
381 | fprintf(deps, " %s" , file); |
382 | linepos += len+1; |
383 | nasm_free(file); |
384 | } |
385 | fprintf(deps, "\n\n" ); |
386 | |
387 | list_for_each_safe(l, nl, list) { |
388 | if (depend_emit_phony) { |
389 | char *file = quote_for_make(l->str); |
390 | fprintf(deps, "%s :\n%s\n" , file, nulltarget); |
391 | nasm_free(file); |
392 | } |
393 | nasm_free(l); |
394 | } |
395 | |
396 | if (deps != stdout) |
397 | fclose(deps); |
398 | } |
399 | |
400 | /* Convert a struct tm to a POSIX-style time constant */ |
401 | static int64_t make_posix_time(const struct tm *tm) |
402 | { |
403 | int64_t t; |
404 | int64_t y = tm->tm_year; |
405 | |
406 | /* See IEEE 1003.1:2004, section 4.14 */ |
407 | |
408 | t = (y-70)*365 + (y-69)/4 - (y-1)/100 + (y+299)/400; |
409 | t += tm->tm_yday; |
410 | t *= 24; |
411 | t += tm->tm_hour; |
412 | t *= 60; |
413 | t += tm->tm_min; |
414 | t *= 60; |
415 | t += tm->tm_sec; |
416 | |
417 | return t; |
418 | } |
419 | |
420 | static void timestamp(void) |
421 | { |
422 | struct compile_time * const oct = &official_compile_time; |
423 | const struct tm *tp, *best_gm; |
424 | |
425 | time(&oct->t); |
426 | |
427 | best_gm = NULL; |
428 | |
429 | tp = localtime(&oct->t); |
430 | if (tp) { |
431 | oct->local = *tp; |
432 | best_gm = &oct->local; |
433 | oct->have_local = true; |
434 | } |
435 | |
436 | tp = gmtime(&oct->t); |
437 | if (tp) { |
438 | oct->gm = *tp; |
439 | best_gm = &oct->gm; |
440 | oct->have_gm = true; |
441 | if (!oct->have_local) |
442 | oct->local = oct->gm; |
443 | } else { |
444 | oct->gm = oct->local; |
445 | } |
446 | |
447 | if (best_gm) { |
448 | oct->posix = make_posix_time(best_gm); |
449 | oct->have_posix = true; |
450 | } |
451 | } |
452 | |
453 | int main(int argc, char **argv) |
454 | { |
455 | StrList **depend_ptr; |
456 | |
457 | timestamp(); |
458 | |
459 | error_file = stderr; |
460 | |
461 | iflag_set_default_cpu(&cpu); |
462 | iflag_set_default_cpu(&cmd_cpu); |
463 | |
464 | pass0 = 0; |
465 | want_usage = terminate_after_phase = false; |
466 | nasm_set_verror(nasm_verror_asm); |
467 | |
468 | tolower_init(); |
469 | src_init(); |
470 | |
471 | /* |
472 | * We must call init_labels() before the command line parsing, |
473 | * because we may be setting prefixes/suffixes from the command |
474 | * line. |
475 | */ |
476 | init_labels(); |
477 | |
478 | offsets = raa_init(); |
479 | forwrefs = saa_init((int32_t)sizeof(struct forwrefinfo)); |
480 | |
481 | preproc = &nasmpp; |
482 | operating_mode = OP_NORMAL; |
483 | |
484 | parse_cmdline(argc, argv, 1); |
485 | if (terminate_after_phase) { |
486 | if (want_usage) |
487 | usage(); |
488 | return 1; |
489 | } |
490 | |
491 | /* At this point we have ofmt and the name of the desired debug format */ |
492 | if (!using_debug_info) { |
493 | /* No debug info, redirect to the null backend (empty stubs) */ |
494 | dfmt = &null_debug_form; |
495 | } else if (!debug_format) { |
496 | /* Default debug format for this backend */ |
497 | dfmt = ofmt->default_dfmt; |
498 | } else { |
499 | dfmt = dfmt_find(ofmt, debug_format); |
500 | if (!dfmt) { |
501 | nasm_fatal(ERR_USAGE, |
502 | "unrecognized debug format `%s' for" |
503 | " output format `%s'" , |
504 | debug_format, ofmt->shortname); |
505 | } |
506 | } |
507 | |
508 | preproc_init(); |
509 | |
510 | parse_cmdline(argc, argv, 2); |
511 | if (terminate_after_phase) { |
512 | if (want_usage) |
513 | usage(); |
514 | return 1; |
515 | } |
516 | |
517 | /* Save away the default state of warnings */ |
518 | memcpy(warning_state_init, warning_state, sizeof warning_state); |
519 | |
520 | /* Dependency filename if we are also doing other things */ |
521 | if (!depend_file && (operating_mode & ~OP_DEPEND)) { |
522 | if (outname) |
523 | depend_file = nasm_strcat(outname, ".d" ); |
524 | else |
525 | depend_file = filename_set_extension(inname, ".d" ); |
526 | } |
527 | |
528 | /* |
529 | * If no output file name provided and this |
530 | * is preprocess mode, we're perfectly |
531 | * fine to output into stdout. |
532 | */ |
533 | if (!outname && !(operating_mode & OP_PREPROCESS)) { |
534 | outname = filename_set_extension(inname, ofmt->extension); |
535 | if (!strcmp(outname, inname)) { |
536 | outname = "nasm.out" ; |
537 | nasm_error(ERR_WARNING, |
538 | "default output file same as input, using `%s' for output\n" , |
539 | outname); |
540 | } |
541 | } |
542 | |
543 | depend_ptr = (operating_mode & OP_DEPEND) ? &depend_list : NULL; |
544 | |
545 | if (!depend_target) |
546 | depend_target = quote_for_make(outname); |
547 | |
548 | if (!(operating_mode & (OP_PREPROCESS|OP_NORMAL))) { |
549 | char *line; |
550 | |
551 | if (depend_missing_ok) |
552 | preproc->include_path(NULL); /* "assume generated" */ |
553 | |
554 | preproc->reset(inname, 0, depend_ptr); |
555 | ofile = NULL; |
556 | while ((line = preproc->getline())) |
557 | nasm_free(line); |
558 | preproc->cleanup(0); |
559 | } else if (operating_mode & OP_PREPROCESS) { |
560 | char *line; |
561 | const char *file_name = NULL; |
562 | int32_t prior_linnum = 0; |
563 | int lineinc = 0; |
564 | |
565 | if (outname) { |
566 | ofile = nasm_open_write(outname, NF_TEXT); |
567 | if (!ofile) |
568 | nasm_fatal(0, "unable to open output file `%s'" , outname); |
569 | } else |
570 | ofile = NULL; |
571 | |
572 | location.known = false; |
573 | |
574 | /* pass = 1; */ |
575 | preproc->reset(inname, 3, depend_ptr); |
576 | |
577 | /* Revert all warnings to the default state */ |
578 | memcpy(warning_state, warning_state_init, sizeof warning_state); |
579 | |
580 | while ((line = preproc->getline())) { |
581 | /* |
582 | * We generate %line directives if needed for later programs |
583 | */ |
584 | int32_t linnum = prior_linnum += lineinc; |
585 | int altline = src_get(&linnum, &file_name); |
586 | if (altline) { |
587 | if (altline == 1 && lineinc == 1) |
588 | nasm_fputs("" , ofile); |
589 | else { |
590 | lineinc = (altline != -1 || lineinc != 1); |
591 | fprintf(ofile ? ofile : stdout, |
592 | "%%line %" PRId32"+%d %s\n" , linnum, lineinc, |
593 | file_name); |
594 | } |
595 | prior_linnum = linnum; |
596 | } |
597 | nasm_fputs(line, ofile); |
598 | nasm_free(line); |
599 | } |
600 | preproc->cleanup(0); |
601 | if (ofile) |
602 | fclose(ofile); |
603 | if (ofile && terminate_after_phase && !keep_all) |
604 | remove(outname); |
605 | ofile = NULL; |
606 | } |
607 | |
608 | if (operating_mode & OP_NORMAL) { |
609 | ofile = nasm_open_write(outname, (ofmt->flags & OFMT_TEXT) ? NF_TEXT : NF_BINARY); |
610 | if (!ofile) |
611 | nasm_fatal(ERR_NOFILE, |
612 | "unable to open output file `%s'" , outname); |
613 | |
614 | ofmt->init(); |
615 | dfmt->init(); |
616 | |
617 | assemble_file(inname, depend_ptr); |
618 | |
619 | if (!terminate_after_phase) { |
620 | ofmt->cleanup(); |
621 | cleanup_labels(); |
622 | fflush(ofile); |
623 | if (ferror(ofile)) { |
624 | nasm_error(ERR_NONFATAL|ERR_NOFILE, |
625 | "write error on output file `%s'" , outname); |
626 | terminate_after_phase = true; |
627 | } |
628 | } |
629 | |
630 | if (ofile) { |
631 | fclose(ofile); |
632 | if (terminate_after_phase && !keep_all) |
633 | remove(outname); |
634 | ofile = NULL; |
635 | } |
636 | } |
637 | |
638 | if (depend_list && !terminate_after_phase) |
639 | emit_dependencies(depend_list); |
640 | |
641 | if (want_usage) |
642 | usage(); |
643 | |
644 | raa_free(offsets); |
645 | saa_free(forwrefs); |
646 | eval_cleanup(); |
647 | stdscan_cleanup(); |
648 | src_free(); |
649 | |
650 | return terminate_after_phase; |
651 | } |
652 | |
653 | /* |
654 | * Get a parameter for a command line option. |
655 | * First arg must be in the form of e.g. -f... |
656 | */ |
657 | static char *get_param(char *p, char *q, bool *advance) |
658 | { |
659 | *advance = false; |
660 | if (p[2]) /* the parameter's in the option */ |
661 | return nasm_skip_spaces(p + 2); |
662 | if (q && q[0]) { |
663 | *advance = true; |
664 | return q; |
665 | } |
666 | nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE, |
667 | "option `-%c' requires an argument" , p[1]); |
668 | return NULL; |
669 | } |
670 | |
671 | /* |
672 | * Copy a filename |
673 | */ |
674 | static void copy_filename(const char **dst, const char *src, const char *what) |
675 | { |
676 | if (*dst) |
677 | nasm_fatal(0, "more than one %s file specified: %s\n" , what, src); |
678 | |
679 | *dst = nasm_strdup(src); |
680 | } |
681 | |
682 | /* |
683 | * Convert a string to a POSIX make-safe form |
684 | */ |
685 | static char *quote_for_pmake(const char *str) |
686 | { |
687 | const char *p; |
688 | char *os, *q; |
689 | |
690 | size_t n = 1; /* Terminating zero */ |
691 | size_t nbs = 0; |
692 | |
693 | if (!str) |
694 | return NULL; |
695 | |
696 | for (p = str; *p; p++) { |
697 | switch (*p) { |
698 | case ' ': |
699 | case '\t': |
700 | /* Convert N backslashes + ws -> 2N+1 backslashes + ws */ |
701 | n += nbs + 2; |
702 | nbs = 0; |
703 | break; |
704 | case '$': |
705 | case '#': |
706 | nbs = 0; |
707 | n += 2; |
708 | break; |
709 | case '\\': |
710 | nbs++; |
711 | n++; |
712 | break; |
713 | default: |
714 | nbs = 0; |
715 | n++; |
716 | break; |
717 | } |
718 | } |
719 | |
720 | /* Convert N backslashes at the end of filename to 2N backslashes */ |
721 | if (nbs) |
722 | n += nbs; |
723 | |
724 | os = q = nasm_malloc(n); |
725 | |
726 | nbs = 0; |
727 | for (p = str; *p; p++) { |
728 | switch (*p) { |
729 | case ' ': |
730 | case '\t': |
731 | while (nbs--) |
732 | *q++ = '\\'; |
733 | *q++ = '\\'; |
734 | *q++ = *p; |
735 | break; |
736 | case '$': |
737 | *q++ = *p; |
738 | *q++ = *p; |
739 | nbs = 0; |
740 | break; |
741 | case '#': |
742 | *q++ = '\\'; |
743 | *q++ = *p; |
744 | nbs = 0; |
745 | break; |
746 | case '\\': |
747 | *q++ = *p; |
748 | nbs++; |
749 | break; |
750 | default: |
751 | *q++ = *p; |
752 | nbs = 0; |
753 | break; |
754 | } |
755 | } |
756 | while (nbs--) |
757 | *q++ = '\\'; |
758 | |
759 | *q = '\0'; |
760 | |
761 | return os; |
762 | } |
763 | |
764 | /* |
765 | * Convert a string to a Watcom make-safe form |
766 | */ |
767 | static char *quote_for_wmake(const char *str) |
768 | { |
769 | const char *p; |
770 | char *os, *q; |
771 | bool quote = false; |
772 | |
773 | size_t n = 1; /* Terminating zero */ |
774 | |
775 | if (!str) |
776 | return NULL; |
777 | |
778 | for (p = str; *p; p++) { |
779 | switch (*p) { |
780 | case ' ': |
781 | case '\t': |
782 | case '&': |
783 | quote = true; |
784 | n++; |
785 | break; |
786 | case '\"': |
787 | quote = true; |
788 | n += 2; |
789 | break; |
790 | case '$': |
791 | case '#': |
792 | n += 2; |
793 | break; |
794 | default: |
795 | n++; |
796 | break; |
797 | } |
798 | } |
799 | |
800 | if (quote) |
801 | n += 2; |
802 | |
803 | os = q = nasm_malloc(n); |
804 | |
805 | if (quote) |
806 | *q++ = '\"'; |
807 | |
808 | for (p = str; *p; p++) { |
809 | switch (*p) { |
810 | case '$': |
811 | case '#': |
812 | *q++ = '$'; |
813 | *q++ = *p; |
814 | break; |
815 | case '\"': |
816 | *q++ = *p; |
817 | *q++ = *p; |
818 | break; |
819 | default: |
820 | *q++ = *p; |
821 | break; |
822 | } |
823 | } |
824 | |
825 | if (quote) |
826 | *q++ = '\"'; |
827 | |
828 | *q = '\0'; |
829 | |
830 | return os; |
831 | } |
832 | |
833 | enum text_options { |
834 | OPT_BOGUS, |
835 | OPT_VERSION, |
836 | OPT_HELP, |
837 | OPT_ABORT_ON_PANIC, |
838 | OPT_MANGLE, |
839 | OPT_INCLUDE, |
840 | OPT_PRAGMA, |
841 | OPT_BEFORE, |
842 | OPT_LIMIT, |
843 | OPT_KEEP_ALL, |
844 | OPT_NO_LINE |
845 | }; |
846 | struct textargs { |
847 | const char *label; |
848 | enum text_options opt; |
849 | bool need_arg; |
850 | int pvt; |
851 | }; |
852 | static const struct textargs textopts[] = { |
853 | {"v" , OPT_VERSION, false, 0}, |
854 | {"version" , OPT_VERSION, false, 0}, |
855 | {"help" , OPT_HELP, false, 0}, |
856 | {"abort-on-panic" , OPT_ABORT_ON_PANIC, false, 0}, |
857 | {"prefix" , OPT_MANGLE, true, LM_GPREFIX}, |
858 | {"postfix" , OPT_MANGLE, true, LM_GSUFFIX}, |
859 | {"gprefix" , OPT_MANGLE, true, LM_GPREFIX}, |
860 | {"gpostfix" , OPT_MANGLE, true, LM_GSUFFIX}, |
861 | {"lprefix" , OPT_MANGLE, true, LM_LPREFIX}, |
862 | {"lpostfix" , OPT_MANGLE, true, LM_LSUFFIX}, |
863 | {"include" , OPT_INCLUDE, true, 0}, |
864 | {"pragma" , OPT_PRAGMA, true, 0}, |
865 | {"before" , OPT_BEFORE, true, 0}, |
866 | {"limit-" , OPT_LIMIT, true, 0}, |
867 | {"keep-all" , OPT_KEEP_ALL, false, 0}, |
868 | {"no-line" , OPT_NO_LINE, false, 0}, |
869 | {NULL, OPT_BOGUS, false, 0} |
870 | }; |
871 | |
872 | static void show_version(void) |
873 | { |
874 | printf("NASM version %s compiled on %s%s\n" , |
875 | nasm_version, nasm_date, nasm_compile_options); |
876 | exit(0); |
877 | } |
878 | |
879 | static bool stopoptions = false; |
880 | static bool process_arg(char *p, char *q, int pass) |
881 | { |
882 | char *param; |
883 | bool advance = false; |
884 | |
885 | if (!p || !p[0]) |
886 | return false; |
887 | |
888 | if (p[0] == '-' && !stopoptions) { |
889 | if (strchr("oOfpPdDiIlFXuUZwW" , p[1])) { |
890 | /* These parameters take values */ |
891 | if (!(param = get_param(p, q, &advance))) |
892 | return advance; |
893 | } |
894 | |
895 | switch (p[1]) { |
896 | case 's': |
897 | if (pass == 1) |
898 | error_file = stdout; |
899 | break; |
900 | |
901 | case 'o': /* output file */ |
902 | if (pass == 2) |
903 | copy_filename(&outname, param, "output" ); |
904 | break; |
905 | |
906 | case 'f': /* output format */ |
907 | if (pass == 1) { |
908 | ofmt = ofmt_find(param, &ofmt_alias); |
909 | if (!ofmt) { |
910 | nasm_fatal(ERR_USAGE, "unrecognised output format `%s' - use -hf for a list" , param); |
911 | } |
912 | } |
913 | break; |
914 | |
915 | case 'O': /* Optimization level */ |
916 | if (pass == 1) { |
917 | int opt; |
918 | |
919 | if (!*param) { |
920 | /* Naked -O == -Ox */ |
921 | optimizing.level = MAX_OPTIMIZE; |
922 | } else { |
923 | while (*param) { |
924 | switch (*param) { |
925 | case '0': case '1': case '2': case '3': case '4': |
926 | case '5': case '6': case '7': case '8': case '9': |
927 | opt = strtoul(param, ¶m, 10); |
928 | |
929 | /* -O0 -> optimizing.level == -1, 0.98 behaviour */ |
930 | /* -O1 -> optimizing.level == 0, 0.98.09 behaviour */ |
931 | if (opt < 2) |
932 | optimizing.level = opt - 1; |
933 | else |
934 | optimizing.level = opt; |
935 | break; |
936 | |
937 | case 'v': |
938 | case '+': |
939 | param++; |
940 | opt_verbose_info = true; |
941 | break; |
942 | |
943 | case 'x': |
944 | param++; |
945 | optimizing.level = MAX_OPTIMIZE; |
946 | break; |
947 | |
948 | default: |
949 | nasm_fatal(0, |
950 | "unknown optimization option -O%c\n" , |
951 | *param); |
952 | break; |
953 | } |
954 | } |
955 | if (optimizing.level > MAX_OPTIMIZE) |
956 | optimizing.level = MAX_OPTIMIZE; |
957 | } |
958 | } |
959 | break; |
960 | |
961 | case 'p': /* pre-include */ |
962 | case 'P': |
963 | if (pass == 2) |
964 | preproc->pre_include(param); |
965 | break; |
966 | |
967 | case 'd': /* pre-define */ |
968 | case 'D': |
969 | if (pass == 2) |
970 | preproc->pre_define(param); |
971 | break; |
972 | |
973 | case 'u': /* un-define */ |
974 | case 'U': |
975 | if (pass == 2) |
976 | preproc->pre_undefine(param); |
977 | break; |
978 | |
979 | case 'i': /* include search path */ |
980 | case 'I': |
981 | if (pass == 1) |
982 | nasm_add_string_to_strlist(&include_path, param); |
983 | break; |
984 | |
985 | case 'l': /* listing file */ |
986 | if (pass == 2) |
987 | copy_filename(&listname, param, "listing" ); |
988 | break; |
989 | |
990 | case 'Z': /* error messages file */ |
991 | if (pass == 1) |
992 | copy_filename(&errname, param, "error" ); |
993 | break; |
994 | |
995 | case 'F': /* specify debug format */ |
996 | if (pass == 1) { |
997 | using_debug_info = true; |
998 | debug_format = param; |
999 | } |
1000 | break; |
1001 | |
1002 | case 'X': /* specify error reporting format */ |
1003 | if (pass == 1) { |
1004 | if (!nasm_stricmp("vc" , param) || !nasm_stricmp("msvc" , param) || !nasm_stricmp("ms" , param)) |
1005 | errfmt = &errfmt_msvc; |
1006 | else if (!nasm_stricmp("gnu" , param) || !nasm_stricmp("gcc" , param)) |
1007 | errfmt = &errfmt_gnu; |
1008 | else |
1009 | nasm_fatal(ERR_USAGE, "unrecognized error reporting format `%s'" , param); |
1010 | } |
1011 | break; |
1012 | |
1013 | case 'g': |
1014 | if (pass == 1) { |
1015 | using_debug_info = true; |
1016 | if (p[2]) |
1017 | debug_format = nasm_skip_spaces(p + 2); |
1018 | } |
1019 | break; |
1020 | |
1021 | case 'h': |
1022 | help(p[2]); |
1023 | exit(0); /* never need usage message here */ |
1024 | break; |
1025 | |
1026 | case 'y': |
1027 | printf("\nvalid debug formats for '%s' output format are" |
1028 | " ('*' denotes default):\n" , ofmt->shortname); |
1029 | dfmt_list(ofmt, stdout); |
1030 | exit(0); |
1031 | break; |
1032 | |
1033 | case 't': |
1034 | if (pass == 2) |
1035 | tasm_compatible_mode = true; |
1036 | break; |
1037 | |
1038 | case 'v': |
1039 | show_version(); |
1040 | break; |
1041 | |
1042 | case 'e': /* preprocess only */ |
1043 | case 'E': |
1044 | if (pass == 1) |
1045 | operating_mode = OP_PREPROCESS; |
1046 | break; |
1047 | |
1048 | case 'a': /* assemble only - don't preprocess */ |
1049 | if (pass == 1) |
1050 | preproc = &preproc_nop; |
1051 | break; |
1052 | |
1053 | case 'w': |
1054 | case 'W': |
1055 | if (pass == 2) { |
1056 | if (!set_warning_status(param)) { |
1057 | nasm_error(ERR_WARNING|ERR_NOFILE|WARN_UNK_WARNING, |
1058 | "unknown warning option: %s" , param); |
1059 | } |
1060 | } |
1061 | break; |
1062 | |
1063 | case 'M': |
1064 | if (pass == 1) { |
1065 | switch (p[2]) { |
1066 | case 'W': |
1067 | quote_for_make = quote_for_wmake; |
1068 | break; |
1069 | case 'D': |
1070 | case 'F': |
1071 | case 'T': |
1072 | case 'Q': |
1073 | advance = true; |
1074 | break; |
1075 | default: |
1076 | break; |
1077 | } |
1078 | } else { |
1079 | switch (p[2]) { |
1080 | case 0: |
1081 | operating_mode = OP_DEPEND; |
1082 | break; |
1083 | case 'G': |
1084 | operating_mode = OP_DEPEND; |
1085 | depend_missing_ok = true; |
1086 | break; |
1087 | case 'P': |
1088 | depend_emit_phony = true; |
1089 | break; |
1090 | case 'D': |
1091 | operating_mode |= OP_DEPEND; |
1092 | if (q && (q[0] != '-' || q[1] == '\0')) { |
1093 | depend_file = q; |
1094 | advance = true; |
1095 | } |
1096 | break; |
1097 | case 'F': |
1098 | depend_file = q; |
1099 | advance = true; |
1100 | break; |
1101 | case 'T': |
1102 | depend_target = q; |
1103 | advance = true; |
1104 | break; |
1105 | case 'Q': |
1106 | depend_target = quote_for_make(q); |
1107 | advance = true; |
1108 | break; |
1109 | case 'W': |
1110 | /* handled in pass 1 */ |
1111 | break; |
1112 | default: |
1113 | nasm_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE, |
1114 | "unknown dependency option `-M%c'" , p[2]); |
1115 | break; |
1116 | } |
1117 | } |
1118 | if (advance && (!q || !q[0])) { |
1119 | nasm_error(ERR_NONFATAL|ERR_NOFILE|ERR_USAGE, |
1120 | "option `-M%c' requires a parameter" , p[2]); |
1121 | break; |
1122 | } |
1123 | break; |
1124 | |
1125 | case '-': |
1126 | { |
1127 | const struct textargs *tx; |
1128 | size_t olen, plen; |
1129 | char *eqsave; |
1130 | |
1131 | p += 2; |
1132 | |
1133 | if (!*p) { /* -- => stop processing options */ |
1134 | stopoptions = true; |
1135 | break; |
1136 | } |
1137 | |
1138 | olen = 0; /* Placate gcc at lower optimization levels */ |
1139 | plen = strlen(p); |
1140 | for (tx = textopts; tx->label; tx++) { |
1141 | olen = strlen(tx->label); |
1142 | |
1143 | if (olen > plen) |
1144 | continue; |
1145 | |
1146 | if (nasm_memicmp(p, tx->label, olen)) |
1147 | continue; |
1148 | |
1149 | if (tx->label[olen-1] == '-') |
1150 | break; /* Incomplete option */ |
1151 | |
1152 | if (!p[olen] || p[olen] == '=') |
1153 | break; /* Complete option */ |
1154 | } |
1155 | |
1156 | if (!tx->label) { |
1157 | nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE, |
1158 | "unrecognized option `--%s'" , p); |
1159 | } |
1160 | |
1161 | eqsave = param = strchr(p+olen, '='); |
1162 | if (param) |
1163 | *param++ = '\0'; |
1164 | |
1165 | if (tx->need_arg) { |
1166 | if (!param) { |
1167 | param = q; |
1168 | advance = true; |
1169 | } |
1170 | |
1171 | /* Note: a null string is a valid parameter */ |
1172 | if (!param) { |
1173 | nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE, |
1174 | "option `--%s' requires an argument" , |
1175 | p); |
1176 | break; |
1177 | } |
1178 | } else { |
1179 | if (param) { |
1180 | nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE, |
1181 | "option `--%s' does not take an argument" , |
1182 | p); |
1183 | |
1184 | } |
1185 | } |
1186 | |
1187 | switch (tx->opt) { |
1188 | case OPT_VERSION: |
1189 | show_version(); |
1190 | break; |
1191 | case OPT_ABORT_ON_PANIC: |
1192 | abort_on_panic = true; |
1193 | break; |
1194 | case OPT_MANGLE: |
1195 | if (pass == 2) |
1196 | set_label_mangle(tx->pvt, param); |
1197 | break; |
1198 | case OPT_INCLUDE: |
1199 | if (pass == 2) |
1200 | preproc->pre_include(q); |
1201 | break; |
1202 | case OPT_PRAGMA: |
1203 | if (pass == 2) |
1204 | preproc->pre_command("pragma" , param); |
1205 | break; |
1206 | case OPT_BEFORE: |
1207 | if (pass == 2) |
1208 | preproc->pre_command(NULL, param); |
1209 | break; |
1210 | case OPT_LIMIT: |
1211 | if (pass == 1) |
1212 | nasm_set_limit(p+olen, param); |
1213 | break; |
1214 | case OPT_KEEP_ALL: |
1215 | keep_all = true; |
1216 | break; |
1217 | case OPT_NO_LINE: |
1218 | pp_noline = true; |
1219 | break; |
1220 | case OPT_HELP: |
1221 | help(0); |
1222 | exit(0); |
1223 | default: |
1224 | panic(); |
1225 | } |
1226 | |
1227 | if (eqsave) |
1228 | *eqsave = '='; /* Restore = argument separator */ |
1229 | |
1230 | break; |
1231 | } |
1232 | |
1233 | default: |
1234 | nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE, |
1235 | "unrecognised option `-%c'" , p[1]); |
1236 | break; |
1237 | } |
1238 | } else if (pass == 2) { |
1239 | /* In theory we could allow multiple input files... */ |
1240 | copy_filename(&inname, p, "input" ); |
1241 | } |
1242 | |
1243 | return advance; |
1244 | } |
1245 | |
1246 | #define ARG_BUF_DELTA 128 |
1247 | |
1248 | static void process_respfile(FILE * rfile, int pass) |
1249 | { |
1250 | char *buffer, *p, *q, *prevarg; |
1251 | int bufsize, prevargsize; |
1252 | |
1253 | bufsize = prevargsize = ARG_BUF_DELTA; |
1254 | buffer = nasm_malloc(ARG_BUF_DELTA); |
1255 | prevarg = nasm_malloc(ARG_BUF_DELTA); |
1256 | prevarg[0] = '\0'; |
1257 | |
1258 | while (1) { /* Loop to handle all lines in file */ |
1259 | p = buffer; |
1260 | while (1) { /* Loop to handle long lines */ |
1261 | q = fgets(p, bufsize - (p - buffer), rfile); |
1262 | if (!q) |
1263 | break; |
1264 | p += strlen(p); |
1265 | if (p > buffer && p[-1] == '\n') |
1266 | break; |
1267 | if (p - buffer > bufsize - 10) { |
1268 | int offset; |
1269 | offset = p - buffer; |
1270 | bufsize += ARG_BUF_DELTA; |
1271 | buffer = nasm_realloc(buffer, bufsize); |
1272 | p = buffer + offset; |
1273 | } |
1274 | } |
1275 | |
1276 | if (!q && p == buffer) { |
1277 | if (prevarg[0]) |
1278 | process_arg(prevarg, NULL, pass); |
1279 | nasm_free(buffer); |
1280 | nasm_free(prevarg); |
1281 | return; |
1282 | } |
1283 | |
1284 | /* |
1285 | * Play safe: remove CRs, LFs and any spurious ^Zs, if any of |
1286 | * them are present at the end of the line. |
1287 | */ |
1288 | *(p = &buffer[strcspn(buffer, "\r\n\032" )]) = '\0'; |
1289 | |
1290 | while (p > buffer && nasm_isspace(p[-1])) |
1291 | *--p = '\0'; |
1292 | |
1293 | p = nasm_skip_spaces(buffer); |
1294 | |
1295 | if (process_arg(prevarg, p, pass)) |
1296 | *p = '\0'; |
1297 | |
1298 | if ((int) strlen(p) > prevargsize - 10) { |
1299 | prevargsize += ARG_BUF_DELTA; |
1300 | prevarg = nasm_realloc(prevarg, prevargsize); |
1301 | } |
1302 | strncpy(prevarg, p, prevargsize); |
1303 | } |
1304 | } |
1305 | |
1306 | /* Function to process args from a string of args, rather than the |
1307 | * argv array. Used by the environment variable and response file |
1308 | * processing. |
1309 | */ |
1310 | static void process_args(char *args, int pass) |
1311 | { |
1312 | char *p, *q, *arg, *prevarg; |
1313 | char separator = ' '; |
1314 | |
1315 | p = args; |
1316 | if (*p && *p != '-') |
1317 | separator = *p++; |
1318 | arg = NULL; |
1319 | while (*p) { |
1320 | q = p; |
1321 | while (*p && *p != separator) |
1322 | p++; |
1323 | while (*p == separator) |
1324 | *p++ = '\0'; |
1325 | prevarg = arg; |
1326 | arg = q; |
1327 | if (process_arg(prevarg, arg, pass)) |
1328 | arg = NULL; |
1329 | } |
1330 | if (arg) |
1331 | process_arg(arg, NULL, pass); |
1332 | } |
1333 | |
1334 | static void process_response_file(const char *file, int pass) |
1335 | { |
1336 | char str[2048]; |
1337 | FILE *f = nasm_open_read(file, NF_TEXT); |
1338 | if (!f) { |
1339 | perror(file); |
1340 | exit(-1); |
1341 | } |
1342 | while (fgets(str, sizeof str, f)) { |
1343 | process_args(str, pass); |
1344 | } |
1345 | fclose(f); |
1346 | } |
1347 | |
1348 | static void parse_cmdline(int argc, char **argv, int pass) |
1349 | { |
1350 | FILE *rfile; |
1351 | char *envreal, *envcopy = NULL, *p; |
1352 | int i; |
1353 | |
1354 | /* |
1355 | * Initialize all the warnings to their default state, including |
1356 | * warning index 0 used for "always on". |
1357 | */ |
1358 | for (i = 0; i < WARN_ALL; i++) |
1359 | warning_state_init[i] = warning_state[i] = warnings[i].state; |
1360 | |
1361 | /* |
1362 | * First, process the NASMENV environment variable. |
1363 | */ |
1364 | envreal = getenv("NASMENV" ); |
1365 | if (envreal) { |
1366 | envcopy = nasm_strdup(envreal); |
1367 | process_args(envcopy, pass); |
1368 | nasm_free(envcopy); |
1369 | } |
1370 | |
1371 | /* |
1372 | * Now process the actual command line. |
1373 | */ |
1374 | while (--argc) { |
1375 | bool advance; |
1376 | argv++; |
1377 | if (argv[0][0] == '@') { |
1378 | /* |
1379 | * We have a response file, so process this as a set of |
1380 | * arguments like the environment variable. This allows us |
1381 | * to have multiple arguments on a single line, which is |
1382 | * different to the -@resp file processing below for regular |
1383 | * NASM. |
1384 | */ |
1385 | process_response_file(argv[0]+1, pass); |
1386 | argc--; |
1387 | argv++; |
1388 | } |
1389 | if (!stopoptions && argv[0][0] == '-' && argv[0][1] == '@') { |
1390 | p = get_param(argv[0], argc > 1 ? argv[1] : NULL, &advance); |
1391 | if (p) { |
1392 | rfile = nasm_open_read(p, NF_TEXT); |
1393 | if (rfile) { |
1394 | process_respfile(rfile, pass); |
1395 | fclose(rfile); |
1396 | } else |
1397 | nasm_error(ERR_NONFATAL | ERR_NOFILE | ERR_USAGE, |
1398 | "unable to open response file `%s'" , p); |
1399 | } |
1400 | } else |
1401 | advance = process_arg(argv[0], argc > 1 ? argv[1] : NULL, pass); |
1402 | argv += advance, argc -= advance; |
1403 | } |
1404 | |
1405 | /* |
1406 | * Look for basic command line typos. This definitely doesn't |
1407 | * catch all errors, but it might help cases of fumbled fingers. |
1408 | */ |
1409 | if (pass != 2) |
1410 | return; |
1411 | |
1412 | if (!inname) |
1413 | nasm_fatal(ERR_USAGE, "no input file specified" ); |
1414 | else if ((errname && !strcmp(inname, errname)) || |
1415 | (outname && !strcmp(inname, outname)) || |
1416 | (listname && !strcmp(inname, listname)) || |
1417 | (depend_file && !strcmp(inname, depend_file))) |
1418 | nasm_fatal(ERR_USAGE, "will not overwrite input file" ); |
1419 | |
1420 | if (errname) { |
1421 | error_file = nasm_open_write(errname, NF_TEXT); |
1422 | if (!error_file) { |
1423 | error_file = stderr; /* Revert to default! */ |
1424 | nasm_fatal(ERR_USAGE, "cannot open file `%s' for error messages" , errname); |
1425 | } |
1426 | } |
1427 | } |
1428 | |
1429 | static void assemble_file(const char *fname, StrList **depend_ptr) |
1430 | { |
1431 | char *line; |
1432 | insn output_ins; |
1433 | int i; |
1434 | uint64_t prev_offset_changed; |
1435 | int64_t stall_count = 0; /* Make sure we make forward progress... */ |
1436 | |
1437 | switch (cmd_sb) { |
1438 | case 16: |
1439 | break; |
1440 | case 32: |
1441 | if (!iflag_cpu_level_ok(&cmd_cpu, IF_386)) |
1442 | nasm_fatal(0, "command line: 32-bit segment size requires a higher cpu" ); |
1443 | break; |
1444 | case 64: |
1445 | if (!iflag_cpu_level_ok(&cmd_cpu, IF_X86_64)) |
1446 | nasm_fatal(0, "command line: 64-bit segment size requires a higher cpu" ); |
1447 | break; |
1448 | default: |
1449 | panic(); |
1450 | break; |
1451 | } |
1452 | |
1453 | prev_offset_changed = nasm_limit[LIMIT_PASSES]; |
1454 | for (passn = 1; pass0 <= 2; passn++) { |
1455 | pass1 = pass0 == 2 ? 2 : 1; /* 1, 1, 1, ..., 1, 2 */ |
1456 | pass2 = passn > 1 ? 2 : 1; /* 1, 2, 2, ..., 2, 2 */ |
1457 | /* pass0 0, 0, 0, ..., 1, 2 */ |
1458 | |
1459 | globalbits = cmd_sb; /* set 'bits' to command line default */ |
1460 | cpu = cmd_cpu; |
1461 | if (pass0 == 2) { |
1462 | lfmt->init(listname); |
1463 | } else if (passn == 1 && listname && !keep_all) { |
1464 | /* Remove the list file in case we die before the output pass */ |
1465 | remove(listname); |
1466 | } |
1467 | in_absolute = false; |
1468 | global_offset_changed = 0; /* set by redefine_label */ |
1469 | if (passn > 1) { |
1470 | saa_rewind(forwrefs); |
1471 | forwref = saa_rstruct(forwrefs); |
1472 | raa_free(offsets); |
1473 | offsets = raa_init(); |
1474 | } |
1475 | location.segment = NO_SEG; |
1476 | location.offset = 0; |
1477 | if (passn == 1) |
1478 | location.known = true; |
1479 | ofmt->reset(); |
1480 | switch_segment(ofmt->section(NULL, pass2, &globalbits)); |
1481 | preproc->reset(fname, pass1, pass1 == 2 ? depend_ptr : NULL); |
1482 | |
1483 | /* Revert all warnings to the default state */ |
1484 | memcpy(warning_state, warning_state_init, sizeof warning_state); |
1485 | |
1486 | globallineno = 0; |
1487 | |
1488 | while ((line = preproc->getline())) { |
1489 | if (++globallineno > nasm_limit[LIMIT_LINES]) |
1490 | nasm_fatal(0, |
1491 | "overall line count exceeds the maximum %" PRId64"\n" , |
1492 | nasm_limit[LIMIT_LINES]); |
1493 | |
1494 | /* |
1495 | * Here we parse our directives; this is not handled by the |
1496 | * main parser. |
1497 | */ |
1498 | if (process_directives(line)) |
1499 | goto end_of_line; /* Just do final cleanup */ |
1500 | |
1501 | /* Not a directive, or even something that starts with [ */ |
1502 | parse_line(pass1, line, &output_ins); |
1503 | |
1504 | if (optimizing.level > 0) { |
1505 | if (forwref != NULL && globallineno == forwref->lineno) { |
1506 | output_ins.forw_ref = true; |
1507 | do { |
1508 | output_ins.oprs[forwref->operand].opflags |= OPFLAG_FORWARD; |
1509 | forwref = saa_rstruct(forwrefs); |
1510 | } while (forwref != NULL |
1511 | && forwref->lineno == globallineno); |
1512 | } else |
1513 | output_ins.forw_ref = false; |
1514 | |
1515 | if (output_ins.forw_ref) { |
1516 | if (passn == 1) { |
1517 | for (i = 0; i < output_ins.operands; i++) { |
1518 | if (output_ins.oprs[i].opflags & OPFLAG_FORWARD) { |
1519 | struct forwrefinfo *fwinf = (struct forwrefinfo *)saa_wstruct(forwrefs); |
1520 | fwinf->lineno = globallineno; |
1521 | fwinf->operand = i; |
1522 | } |
1523 | } |
1524 | } |
1525 | } |
1526 | } |
1527 | |
1528 | /* forw_ref */ |
1529 | if (output_ins.opcode == I_EQU) { |
1530 | if (!output_ins.label) { |
1531 | nasm_error(ERR_NONFATAL, "EQU not preceded by label" ); |
1532 | } else if (output_ins.operands == 1 && |
1533 | (output_ins.oprs[0].type & IMMEDIATE) && |
1534 | output_ins.oprs[0].wrt == NO_SEG) { |
1535 | define_label(output_ins.label, |
1536 | output_ins.oprs[0].segment, |
1537 | output_ins.oprs[0].offset, false); |
1538 | } else if (output_ins.operands == 2 |
1539 | && (output_ins.oprs[0].type & IMMEDIATE) |
1540 | && (output_ins.oprs[0].type & COLON) |
1541 | && output_ins.oprs[0].segment == NO_SEG |
1542 | && output_ins.oprs[0].wrt == NO_SEG |
1543 | && (output_ins.oprs[1].type & IMMEDIATE) |
1544 | && output_ins.oprs[1].segment == NO_SEG |
1545 | && output_ins.oprs[1].wrt == NO_SEG) { |
1546 | define_label(output_ins.label, |
1547 | output_ins.oprs[0].offset | SEG_ABS, |
1548 | output_ins.oprs[1].offset, false); |
1549 | } else { |
1550 | nasm_error(ERR_NONFATAL, "bad syntax for EQU" ); |
1551 | } |
1552 | } else { /* instruction isn't an EQU */ |
1553 | int32_t n; |
1554 | |
1555 | nasm_assert(output_ins.times >= 0); |
1556 | |
1557 | for (n = 1; n <= output_ins.times; n++) { |
1558 | if (pass1 == 1) { |
1559 | int64_t l = insn_size(location.segment, |
1560 | location.offset, |
1561 | globalbits, &output_ins); |
1562 | |
1563 | /* if (using_debug_info) && output_ins.opcode != -1) */ |
1564 | if (using_debug_info) |
1565 | { /* fbk 03/25/01 */ |
1566 | /* this is done here so we can do debug type info */ |
1567 | int32_t typeinfo = |
1568 | TYS_ELEMENTS(output_ins.operands); |
1569 | switch (output_ins.opcode) { |
1570 | case I_RESB: |
1571 | typeinfo = |
1572 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_BYTE; |
1573 | break; |
1574 | case I_RESW: |
1575 | typeinfo = |
1576 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_WORD; |
1577 | break; |
1578 | case I_RESD: |
1579 | typeinfo = |
1580 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_DWORD; |
1581 | break; |
1582 | case I_RESQ: |
1583 | typeinfo = |
1584 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_QWORD; |
1585 | break; |
1586 | case I_REST: |
1587 | typeinfo = |
1588 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_TBYTE; |
1589 | break; |
1590 | case I_RESO: |
1591 | typeinfo = |
1592 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_OWORD; |
1593 | break; |
1594 | case I_RESY: |
1595 | typeinfo = |
1596 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_YWORD; |
1597 | break; |
1598 | case I_RESZ: |
1599 | typeinfo = |
1600 | TYS_ELEMENTS(output_ins.oprs[0].offset) | TY_ZWORD; |
1601 | break; |
1602 | case I_DB: |
1603 | typeinfo |= TY_BYTE; |
1604 | break; |
1605 | case I_DW: |
1606 | typeinfo |= TY_WORD; |
1607 | break; |
1608 | case I_DD: |
1609 | if (output_ins.eops_float) |
1610 | typeinfo |= TY_FLOAT; |
1611 | else |
1612 | typeinfo |= TY_DWORD; |
1613 | break; |
1614 | case I_DQ: |
1615 | typeinfo |= TY_QWORD; |
1616 | break; |
1617 | case I_DT: |
1618 | typeinfo |= TY_TBYTE; |
1619 | break; |
1620 | case I_DO: |
1621 | typeinfo |= TY_OWORD; |
1622 | break; |
1623 | case I_DY: |
1624 | typeinfo |= TY_YWORD; |
1625 | break; |
1626 | case I_DZ: |
1627 | typeinfo |= TY_ZWORD; |
1628 | break; |
1629 | default: |
1630 | typeinfo = TY_LABEL; |
1631 | break; |
1632 | } |
1633 | |
1634 | dfmt->debug_typevalue(typeinfo); |
1635 | } |
1636 | |
1637 | /* |
1638 | * For INCBIN, let the code in assemble |
1639 | * handle TIMES, so we don't have to read the |
1640 | * input file over and over. |
1641 | */ |
1642 | if (l != -1) { |
1643 | increment_offset(l); |
1644 | } |
1645 | /* |
1646 | * else l == -1 => invalid instruction, which will be |
1647 | * flagged as an error on pass 2 |
1648 | */ |
1649 | } else { |
1650 | if (n == 2) |
1651 | lfmt->uplevel(LIST_TIMES); |
1652 | increment_offset(assemble(location.segment, |
1653 | location.offset, |
1654 | globalbits, &output_ins)); |
1655 | } |
1656 | } /* not an EQU */ |
1657 | } |
1658 | if (output_ins.times > 1) |
1659 | lfmt->downlevel(LIST_TIMES); |
1660 | |
1661 | cleanup_insn(&output_ins); |
1662 | |
1663 | end_of_line: |
1664 | nasm_free(line); |
1665 | } /* end while (line = preproc->getline... */ |
1666 | |
1667 | if (global_offset_changed && !terminate_after_phase) { |
1668 | switch (pass0) { |
1669 | case 1: |
1670 | nasm_error(ERR_WARNING|WARN_PHASE, |
1671 | "phase error during stabilization pass, hoping for the best" ); |
1672 | break; |
1673 | |
1674 | case 2: |
1675 | nasm_error(ERR_NONFATAL, |
1676 | "phase error during code generation pass" ); |
1677 | break; |
1678 | |
1679 | default: |
1680 | /* This is normal, we'll keep going... */ |
1681 | break; |
1682 | } |
1683 | } |
1684 | |
1685 | if (pass1 == 1) |
1686 | preproc->cleanup(1); |
1687 | |
1688 | /* |
1689 | * Always run at least two optimization passes (pass0 == 0); |
1690 | * things like subsections will fail miserably without that. |
1691 | * Once we commit to a stabilization pass (pass0 == 1), we can't |
1692 | * go back, and if something goes bad, we can only hope |
1693 | * that we don't end up with a phase error at the end. |
1694 | */ |
1695 | if ((passn > 1 && !global_offset_changed) || pass0 > 0) { |
1696 | pass0++; |
1697 | } else if (global_offset_changed && |
1698 | global_offset_changed < prev_offset_changed) { |
1699 | prev_offset_changed = global_offset_changed; |
1700 | stall_count = 0; |
1701 | } else { |
1702 | stall_count++; |
1703 | } |
1704 | |
1705 | if (terminate_after_phase) |
1706 | break; |
1707 | |
1708 | if ((stall_count > nasm_limit[LIMIT_STALLED]) || |
1709 | (passn >= nasm_limit[LIMIT_PASSES])) { |
1710 | /* We get here if the labels don't converge |
1711 | * Example: FOO equ FOO + 1 |
1712 | */ |
1713 | nasm_error(ERR_NONFATAL, |
1714 | "Can't find valid values for all labels " |
1715 | "after %" PRId64" passes, giving up." , passn); |
1716 | nasm_error(ERR_NONFATAL, |
1717 | "Possible causes: recursive EQUs, macro abuse." ); |
1718 | break; |
1719 | } |
1720 | } |
1721 | |
1722 | preproc->cleanup(0); |
1723 | lfmt->cleanup(); |
1724 | if (!terminate_after_phase && opt_verbose_info) { |
1725 | /* -On and -Ov switches */ |
1726 | fprintf(stdout, "info: assembly required 1+%" PRId64"+1 passes\n" , |
1727 | passn-3); |
1728 | } |
1729 | } |
1730 | |
1731 | /** |
1732 | * get warning index; 0 if this is non-suppressible. |
1733 | */ |
1734 | static size_t warn_index(int severity) |
1735 | { |
1736 | size_t index; |
1737 | |
1738 | if ((severity & ERR_MASK) >= ERR_FATAL) |
1739 | return 0; /* Fatal errors are never suppressible */ |
1740 | |
1741 | /* If this is a warning and no index is provided, it is WARN_OTHER */ |
1742 | if ((severity & (ERR_MASK|WARN_MASK)) == ERR_WARNING) |
1743 | severity |= WARN_OTHER; |
1744 | |
1745 | index = WARN_IDX(severity); |
1746 | nasm_assert(index < WARN_ALL); |
1747 | |
1748 | return index; |
1749 | } |
1750 | |
1751 | static bool skip_this_pass(int severity) |
1752 | { |
1753 | /* |
1754 | * See if it's a pass-specific error or warning which should be skipped. |
1755 | * We can never skip fatal errors as by definition they cannot be |
1756 | * resumed from. |
1757 | */ |
1758 | if ((severity & ERR_MASK) >= ERR_FATAL) |
1759 | return false; |
1760 | |
1761 | /* |
1762 | * passn is 1 on the very first pass only. |
1763 | * pass0 is 2 on the code-generation (final) pass only. |
1764 | * These are the passes we care about in this case. |
1765 | */ |
1766 | return (((severity & ERR_PASS1) && passn != 1) || |
1767 | ((severity & ERR_PASS2) && pass0 != 2)); |
1768 | } |
1769 | |
1770 | /** |
1771 | * check for suppressed message (usually warnings or notes) |
1772 | * |
1773 | * @param severity the severity of the warning or error |
1774 | * @return true if we should abort error/warning printing |
1775 | */ |
1776 | static bool is_suppressed(int severity) |
1777 | { |
1778 | if ((severity & ERR_MASK) >= ERR_FATAL) |
1779 | return false; /* Fatal errors can never be suppressed */ |
1780 | |
1781 | return !(warning_state[warn_index(severity)] & WARN_ST_ENABLED); |
1782 | } |
1783 | |
1784 | /** |
1785 | * Return the true error type (the ERR_MASK part) of the given |
1786 | * severity, accounting for warnings that may need to be promoted to |
1787 | * error. |
1788 | * |
1789 | * @param severity the severity of the warning or error |
1790 | * @return true if we should error out |
1791 | */ |
1792 | static int true_error_type(int severity) |
1793 | { |
1794 | const uint8_t warn_is_err = WARN_ST_ENABLED|WARN_ST_ERROR; |
1795 | int type; |
1796 | |
1797 | type = severity & ERR_MASK; |
1798 | |
1799 | /* Promote warning to error? */ |
1800 | if (type == ERR_WARNING) { |
1801 | uint8_t state = warning_state[warn_index(severity)]; |
1802 | if ((state & warn_is_err) == warn_is_err) |
1803 | type = ERR_NONFATAL; |
1804 | } |
1805 | |
1806 | return type; |
1807 | } |
1808 | |
1809 | /** |
1810 | * common error reporting |
1811 | * This is the common back end of the error reporting schemes currently |
1812 | * implemented. It prints the nature of the warning and then the |
1813 | * specific error message to error_file and may or may not return. It |
1814 | * doesn't return if the error severity is a "panic" or "debug" type. |
1815 | * |
1816 | * @param severity the severity of the warning or error |
1817 | * @param fmt the printf style format string |
1818 | */ |
1819 | static void nasm_verror_asm(int severity, const char *fmt, va_list args) |
1820 | { |
1821 | char msg[1024]; |
1822 | char warnsuf[64]; |
1823 | char linestr[64]; |
1824 | const char *pfx; |
1825 | int spec_type = severity & ERR_MASK; /* type originally specified */ |
1826 | int true_type = true_error_type(severity); |
1827 | const char *currentfile = NULL; |
1828 | int32_t lineno = 0; |
1829 | static const char * const pfx_table[ERR_MASK+1] = { |
1830 | "debug: " , "note: " , "warning: " , "error: " , |
1831 | "" , "" , "fatal: " , "panic: " |
1832 | }; |
1833 | |
1834 | if (is_suppressed(severity)) |
1835 | return; |
1836 | |
1837 | if (!(severity & ERR_NOFILE)) { |
1838 | src_get(&lineno, ¤tfile); |
1839 | if (!currentfile) { |
1840 | currentfile = currentfile ? currentfile : |
1841 | inname && inname[0] ? inname : |
1842 | outname && outname[0] ? outname : |
1843 | NULL; |
1844 | lineno = 0; |
1845 | } |
1846 | } |
1847 | |
1848 | /* |
1849 | * For a debug/warning/note event, if ERR_HERE is set don't |
1850 | * output anything if there is no current filename available |
1851 | */ |
1852 | if (!currentfile && (severity & ERR_HERE) && true_type <= ERR_WARNING) |
1853 | return; |
1854 | |
1855 | if (severity & ERR_NO_SEVERITY) |
1856 | pfx = "" ; |
1857 | else |
1858 | pfx = pfx_table[true_type]; |
1859 | |
1860 | vsnprintf(msg, sizeof msg, fmt, args); |
1861 | *warnsuf = 0; |
1862 | if (spec_type == ERR_WARNING) { |
1863 | snprintf(warnsuf, sizeof warnsuf, " [-w+%s%s]" , |
1864 | (true_type >= ERR_NONFATAL) ? "error=" : "" , |
1865 | warnings[warn_index(severity)].name); |
1866 | } |
1867 | |
1868 | *linestr = 0; |
1869 | if (lineno) { |
1870 | snprintf(linestr, sizeof linestr, "%s%" PRId32"%s" , |
1871 | errfmt->beforeline, lineno, errfmt->afterline); |
1872 | } |
1873 | |
1874 | if (!skip_this_pass(severity)) { |
1875 | fprintf(error_file, "%s%s%s%s%s%s%s\n" , |
1876 | currentfile ? currentfile : "nasm" , |
1877 | linestr, errfmt->beforemsg, pfx, msg, |
1878 | (severity & ERR_HERE) ? " here" : "" , warnsuf); |
1879 | } |
1880 | |
1881 | /* Are we recursing from error_list_macros? */ |
1882 | if (severity & ERR_PP_LISTMACRO) |
1883 | return; |
1884 | |
1885 | /* |
1886 | * Don't suppress this with skip_this_pass(), or we don't get |
1887 | * pass1 or preprocessor warnings in the list file |
1888 | */ |
1889 | if (severity & ERR_HERE) { |
1890 | if (lineno) |
1891 | lfmt->error(severity, "%s%s at %s:%" PRId32"%s" , |
1892 | pfx, msg, currentfile, lineno, warnsuf); |
1893 | else if (currentfile) |
1894 | lfmt->error(severity, "%s%s in file %s%s" , |
1895 | pfx, msg, currentfile, warnsuf); |
1896 | else |
1897 | lfmt->error(severity, "%s%s in unknown location%s" , |
1898 | pfx, msg, warnsuf); |
1899 | } else { |
1900 | lfmt->error(severity, "%s%s%s" , pfx, msg, warnsuf); |
1901 | } |
1902 | |
1903 | if (skip_this_pass(severity)) |
1904 | return; |
1905 | |
1906 | if (severity & ERR_USAGE) |
1907 | want_usage = true; |
1908 | |
1909 | preproc->error_list_macros(severity); |
1910 | |
1911 | switch (true_type) { |
1912 | case ERR_NOTE: |
1913 | case ERR_DEBUG: |
1914 | case ERR_WARNING: |
1915 | /* no further action, by definition */ |
1916 | break; |
1917 | case ERR_NONFATAL: |
1918 | terminate_after_phase = true; |
1919 | break; |
1920 | case ERR_FATAL: |
1921 | if (ofile) { |
1922 | fclose(ofile); |
1923 | if (!keep_all) |
1924 | remove(outname); |
1925 | ofile = NULL; |
1926 | } |
1927 | if (want_usage) |
1928 | usage(); |
1929 | exit(1); /* instantly die */ |
1930 | break; /* placate silly compilers */ |
1931 | case ERR_PANIC: |
1932 | fflush(NULL); |
1933 | |
1934 | if (abort_on_panic) |
1935 | abort(); /* halt, catch fire, dump core/stop debugger */ |
1936 | |
1937 | if (ofile) { |
1938 | fclose(ofile); |
1939 | if (!keep_all) |
1940 | remove(outname); |
1941 | ofile = NULL; |
1942 | } |
1943 | exit(3); |
1944 | break; |
1945 | default: |
1946 | break; /* ??? */ |
1947 | } |
1948 | } |
1949 | |
1950 | static void usage(void) |
1951 | { |
1952 | fputs("type `nasm -h' for help\n" , error_file); |
1953 | } |
1954 | |
1955 | static void help(const char xopt) |
1956 | { |
1957 | int i; |
1958 | |
1959 | printf |
1960 | ("usage: nasm [-@ response file] [-o outfile] [-f format] " |
1961 | "[-l listfile]\n" |
1962 | " [options...] [--] filename\n" |
1963 | " or nasm -v (or --v) for version info\n\n" |
1964 | "\n" |
1965 | "Response files should contain command line parameters,\n" |
1966 | "one per line.\n" |
1967 | "\n" |
1968 | " -t assemble in SciTech TASM compatible mode\n" ); |
1969 | printf |
1970 | (" -E (or -e) preprocess only (writes output to stdout by default)\n" |
1971 | " -a don't preprocess (assemble only)\n" |
1972 | " -M generate Makefile dependencies on stdout\n" |
1973 | " -MG d:o, missing files assumed generated\n" |
1974 | " -MF file set Makefile dependency file\n" |
1975 | " -MD file assemble and generate dependencies\n" |
1976 | " -MT file dependency target name\n" |
1977 | " -MQ file dependency target name (quoted)\n" |
1978 | " -MP emit phony target\n\n" |
1979 | " -Zfile redirect error messages to file\n" |
1980 | " -s redirect error messages to stdout\n\n" |
1981 | " -g generate debugging information\n\n" |
1982 | " -F format select a debugging format\n\n" |
1983 | " -gformat same as -g -F format\n\n" |
1984 | " -o outfile write output to an outfile\n\n" |
1985 | " -f format select an output format\n\n" |
1986 | " -l listfile write listing to a listfile\n\n" |
1987 | " -Ipath add a pathname to the include file path\n" ); |
1988 | printf |
1989 | (" -Oflags... optimize opcodes, immediates and branch offsets\n" |
1990 | " -O0 no optimization\n" |
1991 | " -O1 minimal optimization\n" |
1992 | " -Ox multipass optimization (default)\n" |
1993 | " -Ov display the number of passes executed at the end\n" |
1994 | " -Pfile pre-include a file (also --include)\n" |
1995 | " -Dmacro[=str] pre-define a macro\n" |
1996 | " -Umacro undefine a macro\n" |
1997 | " -Xformat specifiy error reporting format (gnu or vc)\n" |
1998 | " -w+foo enable warning foo (equiv. -Wfoo)\n" |
1999 | " -w-foo disable warning foo (equiv. -Wno-foo)\n" |
2000 | " -w[+-]error[=foo]\n" |
2001 | " promote [specific] warnings to errors\n" |
2002 | " -h show invocation summary and exit (also --help)\n\n" |
2003 | " --pragma str pre-executes a specific %%pragma\n" |
2004 | " --before str add line (usually a preprocessor statement) before the input\n" |
2005 | " --prefix str prepend the given string to all the given string\n" |
2006 | " to all extern, common and global symbols (also --gprefix)\n" |
2007 | " --postfix str append the given string to all the given string\n" |
2008 | " to all extern, common and global symbols (also --gpostfix)\n" |
2009 | " --lprefix str prepend the given string to all other symbols\n" |
2010 | " --lpostfix str append the given string to all other symbols\n" |
2011 | " --keep-all output files will not be removed even if an error happens\n" |
2012 | " --no-line ignore %%line directives in input\n" |
2013 | " --limit-X val set execution limit X\n" ); |
2014 | |
2015 | for (i = 0; i <= LIMIT_MAX; i++) { |
2016 | printf(" %-15s %s (default " , |
2017 | limit_info[i].name, limit_info[i].help); |
2018 | if (nasm_limit[i] < LIMIT_MAX_VAL) { |
2019 | printf("%" PRId64")\n" , nasm_limit[i]); |
2020 | } else { |
2021 | printf("unlimited)\n" ); |
2022 | } |
2023 | } |
2024 | |
2025 | printf("\nWarnings for the -W/-w options: (default in brackets)\n" ); |
2026 | |
2027 | for (i = 1; i <= WARN_ALL; i++) |
2028 | printf(" %-23s %s%s\n" , |
2029 | warnings[i].name, warnings[i].help, |
2030 | i == WARN_ALL ? "\n" : |
2031 | (warnings[i].state & WARN_ST_ERROR) ? " [error]" : |
2032 | (warnings[i].state & WARN_ST_ENABLED) ? " [on]" : " [off]" ); |
2033 | |
2034 | if (xopt == 'f') { |
2035 | printf("valid output formats for -f are" |
2036 | " (`*' denotes default):\n" ); |
2037 | ofmt_list(ofmt, stdout); |
2038 | } else { |
2039 | printf("For a list of valid output formats, use -hf.\n" ); |
2040 | printf("For a list of debug formats, use -f <format> -y.\n" ); |
2041 | } |
2042 | } |
2043 | |