nasm.c

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