gas/as.c

   1 /* as.c - GAS main program.
   2    Copyright (C) 1987-2016 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    GAS is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GAS; see the file COPYING.  If not, write to the Free
  18    Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  19    02110-1301, USA.  */
  20
  21 /* Main program for AS; a 32-bit assembler of GNU.
  22    Understands command arguments.
  23    Has a few routines that don't fit in other modules because they
  24    are shared.
  25
  26                         bugs
  27
  28    : initialisers
  29         Since no-one else says they will support them in future: I
  30    don't support them now.  */
  31
  32 #define COMMON
  33
  34 #include "as.h"
  35 #include "subsegs.h"
  36 #include "output-file.h"
  37 #include "sb.h"
  38 #include "macro.h"
  39 #include "dwarf2dbg.h"
  40 #include "dw2gencfi.h"
  41 #include "bfdver.h"
  42
  43 #ifdef HAVE_ITBL_CPU
  44 #include "itbl-ops.h"
  45 #else
  46 #define itbl_init()
  47 #endif
  48
  49 #ifdef HAVE_SBRK
  50 #ifdef NEED_DECLARATION_SBRK
  51 extern void *sbrk ();
  52 #endif
  53 #endif
  54
  55 #ifdef USING_CGEN
  56 /* Perform any cgen specific initialisation for gas.  */
  57 extern void gas_cgen_begin (void);
  58 #endif
  59
  60 /* We build a list of defsyms as we read the options, and then define
  61    them after we have initialized everything.  */
  62 struct defsym_list
  63 {
  64   struct defsym_list *next;
  65   char *name;
  66   valueT value;
  67 };
  68
  69
  70 /* True if a listing is wanted.  */
  71 int listing;
  72
  73 /* Type of debugging to generate.  */
  74 enum debug_info_type debug_type = DEBUG_UNSPECIFIED;
  75 int use_gnu_debug_info_extensions = 0;
  76
  77 #ifndef MD_DEBUG_FORMAT_SELECTOR
  78 #define MD_DEBUG_FORMAT_SELECTOR NULL
  79 #endif
  80 static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR;
  81
  82 /* Maximum level of macro nesting.  */
  83 int max_macro_nest = 100;
  84
  85 /* argv[0]  */
  86 static char * myname;
  87
  88 /* The default obstack chunk size.  If we set this to zero, the
  89    obstack code will use whatever will fit in a 4096 byte block.  */
  90 int chunksize = 0;
  91
  92 /* To monitor memory allocation more effectively, make this non-zero.
  93    Then the chunk sizes for gas and bfd will be reduced.  */
  94 int debug_memory = 0;
  95
  96 /* Enable verbose mode.  */
  97 int verbose = 0;
  98
  99 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
 100 int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON;
 101 #endif
 102
 103 /* Keep the output file.  */
 104 static int keep_it = 0;
 105
 106 segT reg_section;
 107 segT expr_section;
 108 segT text_section;
 109 segT data_section;
 110 segT bss_section;
 111
 112 /* Name of listing file.  */
 113 static char *listing_filename = NULL;
 114
 115 static struct defsym_list *defsyms;
 116
 117 #ifdef HAVE_ITBL_CPU
 118 /* Keep a record of the itbl files we read in.  */
 119 struct itbl_file_list
 120 {
 121   struct itbl_file_list *next;
 122   char *name;
 123 };
 124 static struct itbl_file_list *itbl_files;
 125 #endif
 126
 127 static long start_time;
 128 #ifdef HAVE_SBRK
 129 char *start_sbrk;
 130 #endif
 131
 132 static int flag_macro_alternate;
 133
 134 \f
 135 #ifdef USE_EMULATIONS
 136 #define EMULATION_ENVIRON "AS_EMULATION"
 137
 138 extern struct emulation mipsbelf, mipslelf, mipself;
 139 extern struct emulation i386coff, i386elf, i386aout;
 140 extern struct emulation crisaout, criself;
 141
 142 static struct emulation *const emulations[] = { EMULATIONS };
 143 static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]);
 144
 145 static void
 146 select_emulation_mode (int argc, char **argv)
 147 {
 148   int i;
 149   char *p;
 150   const char *em = NULL;
 151
 152   for (i = 1; i < argc; i++)
 153     if (!strncmp ("--em", argv[i], 4))
 154       break;
 155
 156   if (i == argc)
 157     goto do_default;
 158
 159   p = strchr (argv[i], '=');
 160   if (p)
 161     p++;
 162   else
 163     p = argv[i + 1];
 164
 165   if (!p || !*p)
 166     as_fatal (_("missing emulation mode name"));
 167   em = p;
 168
 169  do_default:
 170   if (em == 0)
 171     em = getenv (EMULATION_ENVIRON);
 172   if (em == 0)
 173     em = DEFAULT_EMULATION;
 174
 175   if (em)
 176     {
 177       for (i = 0; i < n_emulations; i++)
 178         if (!strcmp (emulations[i]->name, em))
 179           break;
 180       if (i == n_emulations)
 181         as_fatal (_("unrecognized emulation name `%s'"), em);
 182       this_emulation = emulations[i];
 183     }
 184   else
 185     this_emulation = emulations[0];
 186
 187   this_emulation->init ();
 188 }
 189
 190 const char *
 191 default_emul_bfd_name (void)
 192 {
 193   abort ();
 194   return NULL;
 195 }
 196
 197 void
 198 common_emul_init (void)
 199 {
 200   this_format = this_emulation->format;
 201
 202   if (this_emulation->leading_underscore == 2)
 203     this_emulation->leading_underscore = this_format->dfl_leading_underscore;
 204
 205   if (this_emulation->default_endian != 2)
 206     target_big_endian = this_emulation->default_endian;
 207
 208   if (this_emulation->fake_label_name == 0)
 209     {
 210       if (this_emulation->leading_underscore)
 211         this_emulation->fake_label_name = "L0\001";
 212       else
 213         /* What other parameters should we test?  */
 214         this_emulation->fake_label_name = ".L0\001";
 215     }
 216 }
 217 #endif
 218
 219 void
 220 print_version_id (void)
 221 {
 222   static int printed;
 223
 224   if (printed)
 225     return;
 226   printed = 1;
 227
 228   fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"),
 229            VERSION, TARGET_ALIAS, BFD_VERSION_STRING);
 230 }
 231
 232 #ifdef DEFAULT_FLAG_COMPRESS_DEBUG
 233 enum compressed_debug_section_type flag_compress_debug
 234   = COMPRESS_DEBUG_GABI_ZLIB;
 235 #endif
 236
 237 static void
 238 show_usage (FILE * stream)
 239 {
 240   fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
 241
 242   fprintf (stream, _("\
 243 Options:\n\
 244   -a[sub-option...]       turn on listings\n\
 245                           Sub-options [default hls]:\n\
 246                           c      omit false conditionals\n\
 247                           d      omit debugging directives\n\
 248                           g      include general info\n\
 249                           h      include high-level source\n\
 250                           l      include assembly\n\
 251                           m      include macro expansions\n\
 252                           n      omit forms processing\n\
 253                           s      include symbols\n\
 254                           =FILE  list to FILE (must be last sub-option)\n"));
 255
 256   fprintf (stream, _("\
 257   --alternate             initially turn on alternate macro syntax\n"));
 258 #ifdef DEFAULT_FLAG_COMPRESS_DEBUG
 259   fprintf (stream, _("\
 260   --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
 261                           compress DWARF debug sections using zlib [default]\n"));
 262   fprintf (stream, _("\
 263   --nocompress-debug-sections\n\
 264                           don't compress DWARF debug sections\n"));
 265 #else
 266   fprintf (stream, _("\
 267   --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
 268                           compress DWARF debug sections using zlib\n"));
 269   fprintf (stream, _("\
 270   --nocompress-debug-sections\n\
 271                           don't compress DWARF debug sections [default]\n"));
 272 #endif
 273   fprintf (stream, _("\
 274   -D                      produce assembler debugging messages\n"));
 275   fprintf (stream, _("\
 276   --debug-prefix-map OLD=NEW\n\
 277                           map OLD to NEW in debug information\n"));
 278   fprintf (stream, _("\
 279   --defsym SYM=VAL        define symbol SYM to given value\n"));
 280 #ifdef USE_EMULATIONS
 281   {
 282     int i;
 283     const char *def_em;
 284
 285     fprintf (stream, "\
 286   --em=[");
 287     for (i = 0; i < n_emulations - 1; i++)
 288       fprintf (stream, "%s | ", emulations[i]->name);
 289     fprintf (stream, "%s]\n", emulations[i]->name);
 290
 291     def_em = getenv (EMULATION_ENVIRON);
 292     if (!def_em)
 293       def_em = DEFAULT_EMULATION;
 294     fprintf (stream, _("\
 295                           emulate output (default %s)\n"), def_em);
 296   }
 297 #endif
 298 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
 299   fprintf (stream, _("\
 300   --execstack             require executable stack for this object\n"));
 301   fprintf (stream, _("\
 302   --noexecstack           don't require executable stack for this object\n"));
 303   fprintf (stream, _("\
 304   --size-check=[error|warning]\n\
 305                           ELF .size directive check (default --size-check=error)\n"));
 306   fprintf (stream, _("\
 307   --elf-stt-common=[no|yes]\n\
 308                           generate ELF common symbols with STT_COMMON type\n"));
 309   fprintf (stream, _("\
 310   --sectname-subst        enable section name substitution sequences\n"));
 311 #endif
 312   fprintf (stream, _("\
 313   -f                      skip whitespace and comment preprocessing\n"));
 314   fprintf (stream, _("\
 315   -g --gen-debug          generate debugging information\n"));
 316   fprintf (stream, _("\
 317   --gstabs                generate STABS debugging information\n"));
 318   fprintf (stream, _("\
 319   --gstabs+               generate STABS debug info with GNU extensions\n"));
 320   fprintf (stream, _("\
 321   --gdwarf-2              generate DWARF2 debugging information\n"));
 322   fprintf (stream, _("\
 323   --gdwarf-sections       generate per-function section names for DWARF line information\n"));
 324   fprintf (stream, _("\
 325   --hash-size=<value>     set the hash table size close to <value>\n"));
 326   fprintf (stream, _("\
 327   --help                  show this message and exit\n"));
 328   fprintf (stream, _("\
 329   --target-help           show target specific options\n"));
 330   fprintf (stream, _("\
 331   -I DIR                  add DIR to search list for .include directives\n"));
 332   fprintf (stream, _("\
 333   -J                      don't warn about signed overflow\n"));
 334   fprintf (stream, _("\
 335   -K                      warn when differences altered for long displacements\n"));
 336   fprintf (stream, _("\
 337   -L,--keep-locals        keep local symbols (e.g. starting with `L')\n"));
 338   fprintf (stream, _("\
 339   -M,--mri                assemble in MRI compatibility mode\n"));
 340   fprintf (stream, _("\
 341   --MD FILE               write dependency information in FILE (default none)\n"));
 342   fprintf (stream, _("\
 343   -nocpp                  ignored\n"));
 344   fprintf (stream, _("\
 345   -no-pad-sections        do not pad the end of sections to alignment boundaries\n"));
 346   fprintf (stream, _("\
 347   -o OBJFILE              name the object-file output OBJFILE (default a.out)\n"));
 348   fprintf (stream, _("\
 349   -R                      fold data section into text section\n"));
 350   fprintf (stream, _("\
 351   --reduce-memory-overheads \n\
 352                           prefer smaller memory use at the cost of longer\n\
 353                           assembly times\n"));
 354   fprintf (stream, _("\
 355   --statistics            print various measured statistics from execution\n"));
 356   fprintf (stream, _("\
 357   --strip-local-absolute  strip local absolute symbols\n"));
 358   fprintf (stream, _("\
 359   --traditional-format    Use same format as native assembler when possible\n"));
 360   fprintf (stream, _("\
 361   --version               print assembler version number and exit\n"));
 362   fprintf (stream, _("\
 363   -W  --no-warn           suppress warnings\n"));
 364   fprintf (stream, _("\
 365   --warn                  don't suppress warnings\n"));
 366   fprintf (stream, _("\
 367   --fatal-warnings        treat warnings as errors\n"));
 368 #ifdef HAVE_ITBL_CPU
 369   fprintf (stream, _("\
 370   --itbl INSTTBL          extend instruction set to include instructions\n\
 371                           matching the specifications defined in file INSTTBL\n"));
 372 #endif
 373   fprintf (stream, _("\
 374   -w                      ignored\n"));
 375   fprintf (stream, _("\
 376   -X                      ignored\n"));
 377   fprintf (stream, _("\
 378   -Z                      generate object file even after errors\n"));
 379   fprintf (stream, _("\
 380   --listing-lhs-width     set the width in words of the output data column of\n\
 381                           the listing\n"));
 382   fprintf (stream, _("\
 383   --listing-lhs-width2    set the width in words of the continuation lines\n\
 384                           of the output data column; ignored if smaller than\n\
 385                           the width of the first line\n"));
 386   fprintf (stream, _("\
 387   --listing-rhs-width     set the max width in characters of the lines from\n\
 388                           the source file\n"));
 389   fprintf (stream, _("\
 390   --listing-cont-lines    set the maximum number of continuation lines used\n\
 391                           for the output data column of the listing\n"));
 392   fprintf (stream, _("\
 393   @FILE                   read options from FILE\n"));
 394
 395   md_show_usage (stream);
 396
 397   fputc ('\n', stream);
 398
 399   if (REPORT_BUGS_TO[0] && stream == stdout)
 400     fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
 401 }
 402
 403 /* Since it is easy to do here we interpret the special arg "-"
 404    to mean "use stdin" and we set that argv[] pointing to "".
 405    After we have munged argv[], the only things left are source file
 406    name(s) and ""(s) denoting stdin. These file names are used
 407    (perhaps more than once) later.
 408
 409    check for new machine-dep cmdline options in
 410    md_parse_option definitions in config/tc-*.c.  */
 411
 412 static void
 413 parse_args (int * pargc, char *** pargv)
 414 {
 415   int old_argc;
 416   int new_argc;
 417   char ** old_argv;
 418   char ** new_argv;
 419   /* Starting the short option string with '-' is for programs that
 420      expect options and other ARGV-elements in any order and that care about
 421      the ordering of the two.  We describe each non-option ARGV-element
 422      as if it were the argument of an option with character code 1.  */
 423   char *shortopts;
 424   extern const char *md_shortopts;
 425   static const char std_shortopts[] =
 426   {
 427     '-', 'J',
 428 #ifndef WORKING_DOT_WORD
 429     /* -K is not meaningful if .word is not being hacked.  */
 430     'K',
 431 #endif
 432     'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':',
 433 #ifndef VMS
 434     /* -v takes an argument on VMS, so we don't make it a generic
 435        option.  */
 436     'v',
 437 #endif
 438     'w', 'X',
 439 #ifdef HAVE_ITBL_CPU
 440     /* New option for extending instruction set (see also --itbl below).  */
 441     't', ':',
 442 #endif
 443     '\0'
 444   };
 445   struct option *longopts;
 446   extern struct option md_longopts[];
 447   extern size_t md_longopts_size;
 448   /* Codes used for the long options with no short synonyms.  */
 449   enum option_values
 450     {
 451       OPTION_HELP = OPTION_STD_BASE,
 452       OPTION_NOCPP,
 453       OPTION_STATISTICS,
 454       OPTION_VERSION,
 455       OPTION_DUMPCONFIG,
 456       OPTION_VERBOSE,
 457       OPTION_EMULATION,
 458       OPTION_DEBUG_PREFIX_MAP,
 459       OPTION_DEFSYM,
 460       OPTION_LISTING_LHS_WIDTH,
 461       OPTION_LISTING_LHS_WIDTH2,
 462       OPTION_LISTING_RHS_WIDTH,
 463       OPTION_LISTING_CONT_LINES,
 464       OPTION_DEPFILE,
 465       OPTION_GSTABS,
 466       OPTION_GSTABS_PLUS,
 467       OPTION_GDWARF2,
 468       OPTION_GDWARF_SECTIONS,
 469       OPTION_STRIP_LOCAL_ABSOLUTE,
 470       OPTION_TRADITIONAL_FORMAT,
 471       OPTION_WARN,
 472       OPTION_TARGET_HELP,
 473       OPTION_EXECSTACK,
 474       OPTION_NOEXECSTACK,
 475       OPTION_SIZE_CHECK,
 476       OPTION_ELF_STT_COMMON,
 477       OPTION_SECTNAME_SUBST,
 478       OPTION_ALTERNATE,
 479       OPTION_AL,
 480       OPTION_HASH_TABLE_SIZE,
 481       OPTION_REDUCE_MEMORY_OVERHEADS,
 482       OPTION_WARN_FATAL,
 483       OPTION_COMPRESS_DEBUG,
 484       OPTION_NOCOMPRESS_DEBUG,
 485       OPTION_NO_PAD_SECTIONS /* = STD_BASE + 40 */
 486     /* When you add options here, check that they do
 487        not collide with OPTION_MD_BASE.  See as.h.  */
 488     };
 489
 490   static const struct option std_longopts[] =
 491   {
 492     /* Note: commas are placed at the start of the line rather than
 493        the end of the preceding line so that it is simpler to
 494        selectively add and remove lines from this list.  */
 495     {"alternate", no_argument, NULL, OPTION_ALTERNATE}
 496     /* The entry for "a" is here to prevent getopt_long_only() from
 497        considering that -a is an abbreviation for --alternate.  This is
 498        necessary because -a=<FILE> is a valid switch but getopt would
 499        normally reject it since --alternate does not take an argument.  */
 500     ,{"a", optional_argument, NULL, 'a'}
 501     /* Handle -al=<FILE>.  */
 502     ,{"al", optional_argument, NULL, OPTION_AL}
 503     ,{"compress-debug-sections", optional_argument, NULL, OPTION_COMPRESS_DEBUG}
 504     ,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG}
 505     ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP}
 506     ,{"defsym", required_argument, NULL, OPTION_DEFSYM}
 507     ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG}
 508     ,{"emulation", required_argument, NULL, OPTION_EMULATION}
 509 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
 510     ,{"execstack", no_argument, NULL, OPTION_EXECSTACK}
 511     ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK}
 512     ,{"size-check", required_argument, NULL, OPTION_SIZE_CHECK}
 513     ,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON}
 514     ,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST}
 515 #endif
 516     ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
 517     ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2}
 518     /* GCC uses --gdwarf-2 but GAS uses to use --gdwarf2,
 519        so we keep it here for backwards compatibility.  */
 520     ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2}
 521     ,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS}
 522     ,{"gen-debug", no_argument, NULL, 'g'}
 523     ,{"gstabs", no_argument, NULL, OPTION_GSTABS}
 524     ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS}
 525     ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE}
 526     ,{"help", no_argument, NULL, OPTION_HELP}
 527 #ifdef HAVE_ITBL_CPU
 528     /* New option for extending instruction set (see also -t above).
 529        The "-t file" or "--itbl file" option extends the basic set of
 530        valid instructions by reading "file", a text file containing a
 531        list of instruction formats.  The additional opcodes and their
 532        formats are added to the built-in set of instructions, and
 533        mnemonics for new registers may also be defined.  */
 534     ,{"itbl", required_argument, NULL, 't'}
 535 #endif
 536     /* getopt allows abbreviations, so we do this to stop it from
 537        treating -k as an abbreviation for --keep-locals.  Some
 538        ports use -k to enable PIC assembly.  */
 539     ,{"keep-locals", no_argument, NULL, 'L'}
 540     ,{"keep-locals", no_argument, NULL, 'L'}
 541     ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH}
 542     ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2}
 543     ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH}
 544     ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES}
 545     ,{"MD", required_argument, NULL, OPTION_DEPFILE}
 546     ,{"mri", no_argument, NULL, 'M'}
 547     ,{"nocpp", no_argument, NULL, OPTION_NOCPP}
 548     ,{"no-pad-sections", no_argument, NULL, OPTION_NO_PAD_SECTIONS}
 549     ,{"no-warn", no_argument, NULL, 'W'}
 550     ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS}
 551     ,{"statistics", no_argument, NULL, OPTION_STATISTICS}
 552     ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE}
 553     ,{"version", no_argument, NULL, OPTION_VERSION}
 554     ,{"verbose", no_argument, NULL, OPTION_VERBOSE}
 555     ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP}
 556     ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}
 557     ,{"warn", no_argument, NULL, OPTION_WARN}
 558   };
 559
 560   /* Construct the option lists from the standard list and the target
 561      dependent list.  Include space for an extra NULL option and
 562      always NULL terminate.  */
 563   shortopts = concat (std_shortopts, md_shortopts, (char *) NULL);
 564   longopts = (struct option *) xmalloc (sizeof (std_longopts)
 565                                         + md_longopts_size + sizeof (struct option));
 566   memcpy (longopts, std_longopts, sizeof (std_longopts));
 567   memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size);
 568   memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size,
 569           0, sizeof (struct option));
 570
 571   /* Make a local copy of the old argv.  */
 572   old_argc = *pargc;
 573   old_argv = *pargv;
 574
 575   /* Initialize a new argv that contains no options.  */
 576   new_argv = XNEWVEC (char *, old_argc + 1);
 577   new_argv[0] = old_argv[0];
 578   new_argc = 1;
 579   new_argv[new_argc] = NULL;
 580
 581   while (1)
 582     {
 583       /* getopt_long_only is like getopt_long, but '-' as well as '--' can
 584          indicate a long option.  */
 585       int longind;
 586       int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts,
 587                                    &longind);
 588
 589       if (optc == -1)
 590         break;
 591
 592       switch (optc)
 593         {
 594         default:
 595           /* md_parse_option should return 1 if it recognizes optc,
 596              0 if not.  */
 597           if (md_parse_option (optc, optarg) != 0)
 598             break;
 599           /* `-v' isn't included in the general short_opts list, so check for
 600              it explicitly here before deciding we've gotten a bad argument.  */
 601           if (optc == 'v')
 602             {
 603 #ifdef VMS
 604               /* Telling getopt to treat -v's value as optional can result
 605                  in it picking up a following filename argument here.  The
 606                  VMS code in md_parse_option can return 0 in that case,
 607                  but it has no way of pushing the filename argument back.  */
 608               if (optarg && *optarg)
 609                 new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
 610               else
 611 #else
 612               case 'v':
 613 #endif
 614               case OPTION_VERBOSE:
 615                 print_version_id ();
 616                 verbose = 1;
 617               break;
 618             }
 619           else
 620             as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : "");
 621           /* Fall through.  */
 622
 623         case '?':
 624           exit (EXIT_FAILURE);
 625
 626         case 1:                 /* File name.  */
 627           if (!strcmp (optarg, "-"))
 628             optarg = (char *) "";
 629           new_argv[new_argc++] = optarg;
 630           new_argv[new_argc] = NULL;
 631           break;
 632
 633         case OPTION_TARGET_HELP:
 634           md_show_usage (stdout);
 635           exit (EXIT_SUCCESS);
 636
 637         case OPTION_HELP:
 638           show_usage (stdout);
 639           exit (EXIT_SUCCESS);
 640
 641         case OPTION_NOCPP:
 642           break;
 643
 644         case OPTION_NO_PAD_SECTIONS:
 645           do_not_pad_sections_to_alignment = 1;
 646           break;
 647
 648         case OPTION_STATISTICS:
 649           flag_print_statistics = 1;
 650           break;
 651
 652         case OPTION_STRIP_LOCAL_ABSOLUTE:
 653           flag_strip_local_absolute = 1;
 654           break;
 655
 656         case OPTION_TRADITIONAL_FORMAT:
 657           flag_traditional_format = 1;
 658           break;
 659
 660         case OPTION_VERSION:
 661           /* This output is intended to follow the GNU standards document.  */
 662           printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
 663           printf (_("Copyright (C) 2016 Free Software Foundation, Inc.\n"));
 664           printf (_("\
 665 This program is free software; you may redistribute it under the terms of\n\
 666 the GNU General Public License version 3 or later.\n\
 667 This program has absolutely no warranty.\n"));
 668           printf (_("This assembler was configured for a target of `%s'.\n"),
 669                   TARGET_ALIAS);
 670           exit (EXIT_SUCCESS);
 671
 672         case OPTION_EMULATION:
 673 #ifdef USE_EMULATIONS
 674           if (strcmp (optarg, this_emulation->name))
 675             as_fatal (_("multiple emulation names specified"));
 676 #else
 677           as_fatal (_("emulations not handled in this configuration"));
 678 #endif
 679           break;
 680
 681         case OPTION_DUMPCONFIG:
 682           fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS);
 683           fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL);
 684           fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU);
 685 #ifdef TARGET_OBJ_FORMAT
 686           fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
 687 #endif
 688 #ifdef TARGET_FORMAT
 689           fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
 690 #endif
 691           exit (EXIT_SUCCESS);
 692
 693         case OPTION_COMPRESS_DEBUG:
 694           if (optarg)
 695             {
 696 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
 697               if (strcasecmp (optarg, "none") == 0)
 698                 flag_compress_debug = COMPRESS_DEBUG_NONE;
 699               else if (strcasecmp (optarg, "zlib") == 0)
 700                 flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
 701               else if (strcasecmp (optarg, "zlib-gnu") == 0)
 702                 flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
 703               else if (strcasecmp (optarg, "zlib-gabi") == 0)
 704                 flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
 705               else
 706                 as_fatal (_("Invalid --compress-debug-sections option: `%s'"),
 707                           optarg);
 708 #else
 709               as_fatal (_("--compress-debug-sections=%s is unsupported"),
 710                         optarg);
 711 #endif
 712             }
 713           else
 714             flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
 715           break;
 716
 717         case OPTION_NOCOMPRESS_DEBUG:
 718           flag_compress_debug = COMPRESS_DEBUG_NONE;
 719           break;
 720
 721         case OPTION_DEBUG_PREFIX_MAP:
 722           add_debug_prefix_map (optarg);
 723           break;
 724
 725         case OPTION_DEFSYM:
 726           {
 727             char *s;
 728             valueT i;
 729             struct defsym_list *n;
 730
 731             for (s = optarg; *s != '\0' && *s != '='; s++)
 732               ;
 733             if (*s == '\0')
 734               as_fatal (_("bad defsym; format is --defsym name=value"));
 735             *s++ = '\0';
 736             i = bfd_scan_vma (s, (const char **) NULL, 0);
 737             n = XNEW (struct defsym_list);
 738             n->next = defsyms;
 739             n->name = optarg;
 740             n->value = i;
 741             defsyms = n;
 742           }
 743           break;
 744
 745 #ifdef HAVE_ITBL_CPU
 746         case 't':
 747           {
 748             /* optarg is the name of the file containing the instruction
 749                formats, opcodes, register names, etc.  */
 750             struct itbl_file_list *n;
 751
 752             if (optarg == NULL)
 753               {
 754                 as_warn (_("no file name following -t option"));
 755                 break;
 756               }
 757
 758             n = XNEW (struct itbl_file_list);
 759             n->next = itbl_files;
 760             n->name = optarg;
 761             itbl_files = n;
 762
 763             /* Parse the file and add the new instructions to our internal
 764                table.  If multiple instruction tables are specified, the
 765                information from this table gets appended onto the existing
 766                internal table.  */
 767             itbl_files->name = xstrdup (optarg);
 768             if (itbl_parse (itbl_files->name) != 0)
 769               as_fatal (_("failed to read instruction table %s\n"),
 770                         itbl_files->name);
 771           }
 772           break;
 773 #endif
 774
 775         case OPTION_DEPFILE:
 776           start_dependencies (optarg);
 777           break;
 778
 779         case 'g':
 780           /* Some backends, eg Alpha and Mips, use the -g switch for their
 781              own purposes.  So we check here for an explicit -g and allow
 782              the backend to decide if it wants to process it.  */
 783           if (   old_argv[optind - 1][1] == 'g'
 784               && md_parse_option (optc, optarg))
 785             continue;
 786
 787           if (md_debug_format_selector)
 788             debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions);
 789           else if (IS_ELF)
 790             debug_type = DEBUG_DWARF2;
 791           else
 792             debug_type = DEBUG_STABS;
 793           break;
 794
 795         case OPTION_GSTABS_PLUS:
 796           use_gnu_debug_info_extensions = 1;
 797           /* Fall through.  */
 798         case OPTION_GSTABS:
 799           debug_type = DEBUG_STABS;
 800           break;
 801
 802         case OPTION_GDWARF2:
 803           debug_type = DEBUG_DWARF2;
 804           break;
 805
 806         case OPTION_GDWARF_SECTIONS:
 807           flag_dwarf_sections = TRUE;
 808           break;
 809
 810         case 'J':
 811           flag_signed_overflow_ok = 1;
 812           break;
 813
 814 #ifndef WORKING_DOT_WORD
 815         case 'K':
 816           flag_warn_displacement = 1;
 817           break;
 818 #endif
 819         case 'L':
 820           flag_keep_locals = 1;
 821           break;
 822
 823         case OPTION_LISTING_LHS_WIDTH:
 824           listing_lhs_width = atoi (optarg);
 825           if (listing_lhs_width_second < listing_lhs_width)
 826             listing_lhs_width_second = listing_lhs_width;
 827           break;
 828         case OPTION_LISTING_LHS_WIDTH2:
 829           {
 830             int tmp = atoi (optarg);
 831
 832             if (tmp > listing_lhs_width)
 833               listing_lhs_width_second = tmp;
 834           }
 835           break;
 836         case OPTION_LISTING_RHS_WIDTH:
 837           listing_rhs_width = atoi (optarg);
 838           break;
 839         case OPTION_LISTING_CONT_LINES:
 840           listing_lhs_cont_lines = atoi (optarg);
 841           break;
 842
 843         case 'M':
 844           flag_mri = 1;
 845 #ifdef TC_M68K
 846           flag_m68k_mri = 1;
 847 #endif
 848           break;
 849
 850         case 'R':
 851           flag_readonly_data_in_text = 1;
 852           break;
 853
 854         case 'W':
 855           flag_no_warnings = 1;
 856           break;
 857
 858         case OPTION_WARN:
 859           flag_no_warnings = 0;
 860           flag_fatal_warnings = 0;
 861           break;
 862
 863         case OPTION_WARN_FATAL:
 864           flag_no_warnings = 0;
 865           flag_fatal_warnings = 1;
 866           break;
 867
 868 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
 869         case OPTION_EXECSTACK:
 870           flag_execstack = 1;
 871           flag_noexecstack = 0;
 872           break;
 873
 874         case OPTION_NOEXECSTACK:
 875           flag_noexecstack = 1;
 876           flag_execstack = 0;
 877           break;
 878
 879         case OPTION_SIZE_CHECK:
 880           if (strcasecmp (optarg, "error") == 0)
 881             flag_allow_nonconst_size = FALSE;
 882           else if (strcasecmp (optarg, "warning") == 0)
 883             flag_allow_nonconst_size = TRUE;
 884           else
 885             as_fatal (_("Invalid --size-check= option: `%s'"), optarg);
 886           break;
 887
 888         case OPTION_ELF_STT_COMMON:
 889           if (strcasecmp (optarg, "no") == 0)
 890             flag_use_elf_stt_common = 0;
 891           else if (strcasecmp (optarg, "yes") == 0)
 892             flag_use_elf_stt_common = 1;
 893           else
 894             as_fatal (_("Invalid --elf-stt-common= option: `%s'"),
 895                       optarg);
 896           break;
 897
 898         case OPTION_SECTNAME_SUBST:
 899           flag_sectname_subst = 1;
 900           break;
 901 #endif
 902         case 'Z':
 903           flag_always_generate_output = 1;
 904           break;
 905
 906         case OPTION_AL:
 907           listing |= LISTING_LISTING;
 908           if (optarg)
 909             listing_filename = xstrdup (optarg);
 910           break;
 911
 912         case OPTION_ALTERNATE:
 913           optarg = old_argv [optind - 1];
 914           while (* optarg == '-')
 915             optarg ++;
 916
 917           if (strcmp (optarg, "alternate") == 0)
 918             {
 919               flag_macro_alternate = 1;
 920               break;
 921             }
 922           optarg ++;
 923           /* Fall through.  */
 924
 925         case 'a':
 926           if (optarg)
 927             {
 928               if (optarg != old_argv[optind] && optarg[-1] == '=')
 929                 --optarg;
 930
 931               if (md_parse_option (optc, optarg) != 0)
 932                 break;
 933
 934               while (*optarg)
 935                 {
 936                   switch (*optarg)
 937                     {
 938                     case 'c':
 939                       listing |= LISTING_NOCOND;
 940                       break;
 941                     case 'd':
 942                       listing |= LISTING_NODEBUG;
 943                       break;
 944                     case 'g':
 945                       listing |= LISTING_GENERAL;
 946                       break;
 947                     case 'h':
 948                       listing |= LISTING_HLL;
 949                       break;
 950                     case 'l':
 951                       listing |= LISTING_LISTING;
 952                       break;
 953                     case 'm':
 954                       listing |= LISTING_MACEXP;
 955                       break;
 956                     case 'n':
 957                       listing |= LISTING_NOFORM;
 958                       break;
 959                     case 's':
 960                       listing |= LISTING_SYMBOLS;
 961                       break;
 962                     case '=':
 963                       listing_filename = xstrdup (optarg + 1);
 964                       optarg += strlen (listing_filename);
 965                       break;
 966                     default:
 967                       as_fatal (_("invalid listing option `%c'"), *optarg);
 968                       break;
 969                     }
 970                   optarg++;
 971                 }
 972             }
 973           if (!listing)
 974             listing = LISTING_DEFAULT;
 975           break;
 976
 977         case 'D':
 978           /* DEBUG is implemented: it debugs different
 979              things from other people's assemblers.  */
 980           flag_debug = 1;
 981           break;
 982
 983         case 'f':
 984           flag_no_comments = 1;
 985           break;
 986
 987         case 'I':
 988           {                     /* Include file directory.  */
 989             char *temp = xstrdup (optarg);
 990
 991             add_include_dir (temp);
 992             break;
 993           }
 994
 995         case 'o':
 996           out_file_name = xstrdup (optarg);
 997           break;
 998
 999         case 'w':
1000           break;
1001
1002         case 'X':
1003           /* -X means treat warnings as errors.  */
1004           break;
1005
1006         case OPTION_REDUCE_MEMORY_OVERHEADS:
1007           /* The only change we make at the moment is to reduce
1008              the size of the hash tables that we use.  */
1009           set_gas_hash_table_size (4051);
1010           break;
1011
1012         case OPTION_HASH_TABLE_SIZE:
1013           {
1014             unsigned long new_size;
1015
1016             new_size = strtoul (optarg, NULL, 0);
1017             if (new_size)
1018               set_gas_hash_table_size (new_size);
1019             else
1020               as_fatal (_("--hash-size needs a numeric argument"));
1021             break;
1022           }
1023         }
1024     }
1025
1026   free (shortopts);
1027   free (longopts);
1028
1029   *pargc = new_argc;
1030   *pargv = new_argv;
1031
1032 #ifdef md_after_parse_args
1033   md_after_parse_args ();
1034 #endif
1035 }
1036
1037 static void
1038 dump_statistics (void)
1039 {
1040 #ifdef HAVE_SBRK
1041   char *lim = (char *) sbrk (0);
1042 #endif
1043   long run_time = get_run_time () - start_time;
1044
1045   fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"),
1046            myname, run_time / 1000000, run_time % 1000000);
1047 #ifdef HAVE_SBRK
1048   fprintf (stderr, _("%s: data size %ld\n"),
1049            myname, (long) (lim - start_sbrk));
1050 #endif
1051
1052   subsegs_print_statistics (stderr);
1053   write_print_statistics (stderr);
1054   symbol_print_statistics (stderr);
1055   read_print_statistics (stderr);
1056
1057 #ifdef tc_print_statistics
1058   tc_print_statistics (stderr);
1059 #endif
1060
1061 #ifdef obj_print_statistics
1062   obj_print_statistics (stderr);
1063 #endif
1064 }
1065
1066 static void
1067 close_output_file (void)
1068 {
1069   output_file_close (out_file_name);
1070   if (!keep_it)
1071     unlink_if_ordinary (out_file_name);
1072 }
1073
1074 /* The interface between the macro code and gas expression handling.  */
1075
1076 static size_t
1077 macro_expr (const char *emsg, size_t idx, sb *in, offsetT *val)
1078 {
1079   char *hold;
1080   expressionS ex;
1081
1082   sb_terminate (in);
1083
1084   hold = input_line_pointer;
1085   input_line_pointer = in->ptr + idx;
1086   expression_and_evaluate (&ex);
1087   idx = input_line_pointer - in->ptr;
1088   input_line_pointer = hold;
1089
1090   if (ex.X_op != O_constant)
1091     as_bad ("%s", emsg);
1092
1093   *val = ex.X_add_number;
1094
1095   return idx;
1096 }
1097 \f
1098 /* Here to attempt 1 pass over each input file.
1099    We scan argv[*] looking for filenames or exactly "" which is
1100    shorthand for stdin. Any argv that is NULL is not a file-name.
1101    We set need_pass_2 TRUE if, after this, we still have unresolved
1102    expressions of the form (unknown value)+-(unknown value).
1103
1104    Note the un*x semantics: there is only 1 logical input file, but it
1105    may be a catenation of many 'physical' input files.  */
1106
1107 static void
1108 perform_an_assembly_pass (int argc, char ** argv)
1109 {
1110   int saw_a_file = 0;
1111 #ifndef OBJ_MACH_O
1112   flagword applicable;
1113 #endif
1114
1115   need_pass_2 = 0;
1116
1117 #ifndef OBJ_MACH_O
1118   /* Create the standard sections, and those the assembler uses
1119      internally.  */
1120   text_section = subseg_new (TEXT_SECTION_NAME, 0);
1121   data_section = subseg_new (DATA_SECTION_NAME, 0);
1122   bss_section = subseg_new (BSS_SECTION_NAME, 0);
1123   /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
1124      to have relocs, otherwise we don't find out in time.  */
1125   applicable = bfd_applicable_section_flags (stdoutput);
1126   bfd_set_section_flags (stdoutput, text_section,
1127                          applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1128                                        | SEC_CODE | SEC_READONLY));
1129   bfd_set_section_flags (stdoutput, data_section,
1130                          applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1131                                        | SEC_DATA));
1132   bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC);
1133   seg_info (bss_section)->bss = 1;
1134 #endif
1135   subseg_new (BFD_ABS_SECTION_NAME, 0);
1136   subseg_new (BFD_UND_SECTION_NAME, 0);
1137   reg_section = subseg_new ("*GAS `reg' section*", 0);
1138   expr_section = subseg_new ("*GAS `expr' section*", 0);
1139
1140 #ifndef OBJ_MACH_O
1141   subseg_set (text_section, 0);
1142 #endif
1143
1144   /* This may add symbol table entries, which requires having an open BFD,
1145      and sections already created.  */
1146   md_begin ();
1147
1148 #ifdef USING_CGEN
1149   gas_cgen_begin ();
1150 #endif
1151 #ifdef obj_begin
1152   obj_begin ();
1153 #endif
1154
1155   /* Skip argv[0].  */
1156   argv++;
1157   argc--;
1158
1159   while (argc--)
1160     {
1161       if (*argv)
1162         {                       /* Is it a file-name argument?  */
1163           PROGRESS (1);
1164           saw_a_file++;
1165           /* argv->"" if stdin desired, else->filename.  */
1166           read_a_source_file (*argv);
1167         }
1168       argv++;                   /* Completed that argv.  */
1169     }
1170   if (!saw_a_file)
1171     read_a_source_file ("");
1172 }
1173 \f
1174
1175 int
1176 main (int argc, char ** argv)
1177 {
1178   char ** argv_orig = argv;
1179
1180   int macro_strip_at;
1181
1182   start_time = get_run_time ();
1183 #ifdef HAVE_SBRK
1184   start_sbrk = (char *) sbrk (0);
1185 #endif
1186
1187 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
1188   setlocale (LC_MESSAGES, "");
1189 #endif
1190 #if defined (HAVE_SETLOCALE)
1191   setlocale (LC_CTYPE, "");
1192 #endif
1193   bindtextdomain (PACKAGE, LOCALEDIR);
1194   textdomain (PACKAGE);
1195
1196   if (debug_memory)
1197     chunksize = 64;
1198
1199 #ifdef HOST_SPECIAL_INIT
1200   HOST_SPECIAL_INIT (argc, argv);
1201 #endif
1202
1203   myname = argv[0];
1204   xmalloc_set_program_name (myname);
1205
1206   expandargv (&argc, &argv);
1207
1208   START_PROGRESS (myname, 0);
1209
1210 #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
1211 #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
1212 #endif
1213
1214   out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
1215
1216   hex_init ();
1217   bfd_init ();
1218   bfd_set_error_program_name (myname);
1219
1220 #ifdef USE_EMULATIONS
1221   select_emulation_mode (argc, argv);
1222 #endif
1223
1224   PROGRESS (1);
1225   /* Call parse_args before any of the init/begin functions
1226      so that switches like --hash-size can be honored.  */
1227   parse_args (&argc, &argv);
1228   symbol_begin ();
1229   frag_init ();
1230   subsegs_begin ();
1231   read_begin ();
1232   input_scrub_begin ();
1233   expr_begin ();
1234
1235   /* It has to be called after dump_statistics ().  */
1236   xatexit (close_output_file);
1237
1238   if (flag_print_statistics)
1239     xatexit (dump_statistics);
1240
1241   macro_strip_at = 0;
1242 #ifdef TC_I960
1243   macro_strip_at = flag_mri;
1244 #endif
1245
1246   macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr);
1247
1248   PROGRESS (1);
1249
1250   output_file_create (out_file_name);
1251   gas_assert (stdoutput != 0);
1252
1253   dot_symbol_init ();
1254
1255 #ifdef tc_init_after_args
1256   tc_init_after_args ();
1257 #endif
1258
1259   itbl_init ();
1260
1261   dwarf2_init ();
1262
1263   local_symbol_make (".gasversion.", absolute_section,
1264                      BFD_VERSION / 10000UL, &predefined_address_frag);
1265
1266   /* Now that we have fully initialized, and have created the output
1267      file, define any symbols requested by --defsym command line
1268      arguments.  */
1269   while (defsyms != NULL)
1270     {
1271       symbolS *sym;
1272       struct defsym_list *next;
1273
1274       sym = symbol_new (defsyms->name, absolute_section, defsyms->value,
1275                         &zero_address_frag);
1276       /* Make symbols defined on the command line volatile, so that they
1277          can be redefined inside a source file.  This makes this assembler's
1278          behaviour compatible with earlier versions, but it may not be
1279          completely intuitive.  */
1280       S_SET_VOLATILE (sym);
1281       symbol_table_insert (sym);
1282       next = defsyms->next;
1283       free (defsyms);
1284       defsyms = next;
1285     }
1286
1287   PROGRESS (1);
1288
1289   /* Assemble it.  */
1290   perform_an_assembly_pass (argc, argv);
1291
1292   cond_finish_check (-1);
1293
1294 #ifdef md_end
1295   md_end ();
1296 #endif
1297
1298 #if defined OBJ_ELF || defined OBJ_MAYBE_ELF
1299   if ((flag_execstack || flag_noexecstack)
1300       && OUTPUT_FLAVOR == bfd_target_elf_flavour)
1301     {
1302       segT gnustack;
1303
1304       gnustack = subseg_new (".note.GNU-stack", 0);
1305       bfd_set_section_flags (stdoutput, gnustack,
1306                              SEC_READONLY | (flag_execstack ? SEC_CODE : 0));
1307
1308     }
1309 #endif
1310
1311   /* If we've been collecting dwarf2 .debug_line info, either for
1312      assembly debugging or on behalf of the compiler, emit it now.  */
1313   dwarf2_finish ();
1314
1315   /* If we constructed dwarf2 .eh_frame info, either via .cfi
1316      directives from the user or by the backend, emit it now.  */
1317   cfi_finish ();
1318
1319   keep_it = 0;
1320   if (seen_at_least_1_file ())
1321     {
1322       int n_warns, n_errs;
1323       char warn_msg[50];
1324       char err_msg[50];
1325
1326       write_object_file ();
1327
1328       n_warns = had_warnings ();
1329       n_errs = had_errors ();
1330
1331       if (n_warns == 1)
1332         sprintf (warn_msg, _("%d warning"), n_warns);
1333       else
1334         sprintf (warn_msg, _("%d warnings"), n_warns);
1335       if (n_errs == 1)
1336         sprintf (err_msg, _("%d error"), n_errs);
1337       else
1338         sprintf (err_msg, _("%d errors"), n_errs);
1339
1340       if (flag_fatal_warnings && n_warns != 0)
1341         {
1342           if (n_errs == 0)
1343             as_bad (_("%s, treating warnings as errors"), warn_msg);
1344           n_errs += n_warns;
1345         }
1346
1347       if (n_errs == 0)
1348         keep_it = 1;
1349       else if (flag_always_generate_output)
1350         {
1351           /* The -Z flag indicates that an object file should be generated,
1352              regardless of warnings and errors.  */
1353           keep_it = 1;
1354           fprintf (stderr, _("%s, %s, generating bad object file\n"),
1355                    err_msg, warn_msg);
1356         }
1357     }
1358
1359   fflush (stderr);
1360
1361 #ifndef NO_LISTING
1362   listing_print (listing_filename, argv_orig);
1363 #endif
1364
1365   input_scrub_end ();
1366
1367   END_PROGRESS (myname);
1368
1369   /* Use xexit instead of return, because under VMS environments they
1370      may not place the same interpretation on the value given.  */
1371   if (had_errors () != 0)
1372     xexit (EXIT_FAILURE);
1373
1374   /* Only generate dependency file if assembler was successful.  */
1375   print_dependencies ();
1376
1377   xexit (EXIT_SUCCESS);
1378 }