1 /* as.c - GAS main program.
2 Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
4 Free Software Foundation, Inc.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 /* Main program for AS; a 32-bit assembler of GNU.
24 Understands command arguments.
25 Has a few routines that don't fit in other modules because they
31 Since no-one else says they will support them in future: I
32 don't support them now. */
40 #include "output-file.h"
43 #include "dwarf2dbg.h"
44 #include "dw2gencfi.h"
53 #define itbl_parse(itbl_file) 1
58 #ifdef NEED_DECLARATION_SBRK
64 /* Perform any cgen specific initialisation for gas. */
65 extern void gas_cgen_begin (void);
68 /* Keep a record of the itbl files we read in. */
71 struct itbl_file_list *next;
75 /* We build a list of defsyms as we read the options, and then define
76 them after we have initialized everything. */
79 struct defsym_list *next;
85 /* True if a listing is wanted. */
88 /* Type of debugging to generate. */
89 enum debug_info_type debug_type = DEBUG_UNSPECIFIED;
90 int use_gnu_debug_info_extensions = 0;
92 /* Maximum level of macro nesting. */
93 int max_macro_nest = 100;
98 /* The default obstack chunk size. If we set this to zero, the
99 obstack code will use whatever will fit in a 4096 byte block. */
102 /* To monitor memory allocation more effectively, make this non-zero.
103 Then the chunk sizes for gas and bfd will be reduced. */
104 int debug_memory = 0;
106 /* Enable verbose mode. */
117 /* Name of listing file. */
118 static char *listing_filename = NULL;
120 static struct defsym_list *defsyms;
122 static struct itbl_file_list *itbl_files;
124 static long start_time;
127 #ifdef USE_EMULATIONS
128 #define EMULATION_ENVIRON "AS_EMULATION"
130 extern struct emulation mipsbelf, mipslelf, mipself;
131 extern struct emulation mipsbecoff, mipslecoff, mipsecoff;
132 extern struct emulation i386coff, i386elf, i386aout;
133 extern struct emulation crisaout, criself;
135 static struct emulation *const emulations[] = { EMULATIONS };
136 static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]);
139 select_emulation_mode (int argc, char **argv)
144 for (i = 1; i < argc; i++)
145 if (!strncmp ("--em", argv[i], 4))
151 p = strchr (argv[i], '=');
158 as_fatal (_("missing emulation mode name"));
163 em = getenv (EMULATION_ENVIRON);
165 em = DEFAULT_EMULATION;
169 for (i = 0; i < n_emulations; i++)
170 if (!strcmp (emulations[i]->name, em))
172 if (i == n_emulations)
173 as_fatal (_("unrecognized emulation name `%s'"), em);
174 this_emulation = emulations[i];
177 this_emulation = emulations[0];
179 this_emulation->init ();
183 default_emul_bfd_name (void)
190 common_emul_init (void)
192 this_format = this_emulation->format;
194 if (this_emulation->leading_underscore == 2)
195 this_emulation->leading_underscore = this_format->dfl_leading_underscore;
197 if (this_emulation->default_endian != 2)
198 target_big_endian = this_emulation->default_endian;
200 if (this_emulation->fake_label_name == 0)
202 if (this_emulation->leading_underscore)
203 this_emulation->fake_label_name = "L0\001";
205 /* What other parameters should we test? */
206 this_emulation->fake_label_name = ".L0\001";
212 print_version_id (void)
221 fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s"),
222 VERSION, TARGET_ALIAS, BFD_VERSION_STRING);
224 fprintf (stderr, _("GNU assembler version %s (%s)"), VERSION, TARGET_ALIAS);
226 fprintf (stderr, "\n");
230 show_usage (FILE * stream)
232 fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
234 fprintf (stream, _("\
236 -a[sub-option...] turn on listings\n\
237 Sub-options [default hls]:\n\
238 c omit false conditionals\n\
239 d omit debugging directives\n\
240 h include high-level source\n\
241 l include assembly\n\
242 m include macro expansions\n\
243 n omit forms processing\n\
245 =FILE list to FILE (must be last sub-option)\n"));
247 fprintf (stream, _("\
248 -D produce assembler debugging messages\n"));
249 fprintf (stream, _("\
250 --defsym SYM=VAL define symbol SYM to given value\n"));
251 #ifdef USE_EMULATIONS
258 for (i = 0; i < n_emulations - 1; i++)
259 fprintf (stream, "%s | ", emulations[i]->name);
260 fprintf (stream, "%s]\n", emulations[i]->name);
262 def_em = getenv (EMULATION_ENVIRON);
264 def_em = DEFAULT_EMULATION;
265 fprintf (stream, _("\
266 emulate output (default %s)\n"), def_em);
269 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
270 fprintf (stream, _("\
271 --execstack require executable stack for this object\n"));
272 fprintf (stream, _("\
273 --noexecstack don't require executable stack for this object\n"));
275 fprintf (stream, _("\
276 -f skip whitespace and comment preprocessing\n"));
277 fprintf (stream, _("\
278 --gstabs generate stabs debugging information\n"));
279 fprintf (stream, _("\
280 --gstabs+ generate stabs debug info with GNU extensions\n"));
281 fprintf (stream, _("\
282 --gdwarf2 generate DWARF2 debugging information\n"));
283 fprintf (stream, _("\
284 --help show this message and exit\n"));
285 fprintf (stream, _("\
286 --target-help show target specific options\n"));
287 fprintf (stream, _("\
288 -I DIR add DIR to search list for .include directives\n"));
289 fprintf (stream, _("\
290 -J don't warn about signed overflow\n"));
291 fprintf (stream, _("\
292 -K warn when differences altered for long displacements\n"));
293 fprintf (stream, _("\
294 -L,--keep-locals keep local symbols (e.g. starting with `L')\n"));
295 fprintf (stream, _("\
296 -M,--mri assemble in MRI compatibility mode\n"));
297 fprintf (stream, _("\
298 --MD FILE write dependency information in FILE (default none)\n"));
299 fprintf (stream, _("\
301 fprintf (stream, _("\
302 -o OBJFILE name the object-file output OBJFILE (default a.out)\n"));
303 fprintf (stream, _("\
304 -R fold data section into text section\n"));
305 fprintf (stream, _("\
306 --statistics print various measured statistics from execution\n"));
307 fprintf (stream, _("\
308 --strip-local-absolute strip local absolute symbols\n"));
309 fprintf (stream, _("\
310 --traditional-format Use same format as native assembler when possible\n"));
311 fprintf (stream, _("\
312 --version print assembler version number and exit\n"));
313 fprintf (stream, _("\
314 -W --no-warn suppress warnings\n"));
315 fprintf (stream, _("\
316 --warn don't suppress warnings\n"));
317 fprintf (stream, _("\
318 --fatal-warnings treat warnings as errors\n"));
319 fprintf (stream, _("\
320 --itbl INSTTBL extend instruction set to include instructions\n\
321 matching the specifications defined in file INSTTBL\n"));
322 fprintf (stream, _("\
324 fprintf (stream, _("\
326 fprintf (stream, _("\
327 -Z generate object file even after errors\n"));
328 fprintf (stream, _("\
329 --listing-lhs-width set the width in words of the output data column of\n\
331 fprintf (stream, _("\
332 --listing-lhs-width2 set the width in words of the continuation lines\n\
333 of the output data column; ignored if smaller than\n\
334 the width of the first line\n"));
335 fprintf (stream, _("\
336 --listing-rhs-width set the max width in characters of the lines from\n\
337 the source file\n"));
338 fprintf (stream, _("\
339 --listing-cont-lines set the maximum number of continuation lines used\n\
340 for the output data column of the listing\n"));
342 md_show_usage (stream);
344 fputc ('\n', stream);
345 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
348 /* Since it is easy to do here we interpret the special arg "-"
349 to mean "use stdin" and we set that argv[] pointing to "".
350 After we have munged argv[], the only things left are source file
351 name(s) and ""(s) denoting stdin. These file names are used
352 (perhaps more than once) later.
354 check for new machine-dep cmdline options in
355 md_parse_option definitions in config/tc-*.c. */
358 parse_args (int * pargc, char *** pargv)
364 /* Starting the short option string with '-' is for programs that
365 expect options and other ARGV-elements in any order and that care about
366 the ordering of the two. We describe each non-option ARGV-element
367 as if it were the argument of an option with character code 1. */
369 extern const char *md_shortopts;
370 static const char std_shortopts[] =
373 #ifndef WORKING_DOT_WORD
374 /* -K is not meaningful if .word is not being hacked. */
377 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'I', ':', 'o', ':',
379 /* -v takes an argument on VMS, so we don't make it a generic
384 /* New option for extending instruction set (see also --itbl below). */
388 struct option *longopts;
389 extern struct option md_longopts[];
390 extern size_t md_longopts_size;
391 /* Codes used for the long options with no short synonyms. */
394 OPTION_HELP = OPTION_STD_BASE,
403 OPTION_LISTING_LHS_WIDTH,
404 OPTION_LISTING_LHS_WIDTH2,
405 OPTION_LISTING_RHS_WIDTH,
406 OPTION_LISTING_CONT_LINES,
410 OPTION_STRIP_LOCAL_ABSOLUTE,
411 OPTION_TRADITIONAL_FORMAT,
420 static const struct option std_longopts[] =
422 {"help", no_argument, NULL, OPTION_HELP},
423 /* getopt allows abbreviations, so we do this to stop it from
424 treating -k as an abbreviation for --keep-locals. Some
425 ports use -k to enable PIC assembly. */
426 {"keep-locals", no_argument, NULL, 'L'},
427 {"keep-locals", no_argument, NULL, 'L'},
428 {"mri", no_argument, NULL, 'M'},
429 {"nocpp", no_argument, NULL, OPTION_NOCPP},
430 {"statistics", no_argument, NULL, OPTION_STATISTICS},
431 {"version", no_argument, NULL, OPTION_VERSION},
432 {"dump-config", no_argument, NULL, OPTION_DUMPCONFIG},
433 {"verbose", no_argument, NULL, OPTION_VERBOSE},
434 {"emulation", required_argument, NULL, OPTION_EMULATION},
435 {"defsym", required_argument, NULL, OPTION_DEFSYM},
436 /* New option for extending instruction set (see also -t above).
437 The "-t file" or "--itbl file" option extends the basic set of
438 valid instructions by reading "file", a text file containing a
439 list of instruction formats. The additional opcodes and their
440 formats are added to the built-in set of instructions, and
441 mnemonics for new registers may also be defined. */
442 {"itbl", required_argument, NULL, OPTION_INSTTBL},
443 {"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH},
444 {"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2},
445 {"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH},
446 {"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES},
447 {"MD", required_argument, NULL, OPTION_DEPFILE},
448 {"gstabs", no_argument, NULL, OPTION_GSTABS},
449 {"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS},
450 {"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE},
451 {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
452 {"gdwarf2", no_argument, NULL, OPTION_GDWARF2},
453 {"no-warn", no_argument, NULL, 'W'},
454 {"warn", no_argument, NULL, OPTION_WARN},
455 {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
456 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
457 {"execstack", no_argument, NULL, OPTION_EXECSTACK},
458 {"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK},
460 {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
461 /* When you add options here, check that they do not collide with
462 OPTION_MD_BASE. See as.h. */
465 /* Construct the option lists from the standard list and the target
466 dependent list. Include space for an extra NULL option and
467 always NULL terminate. */
468 shortopts = concat (std_shortopts, md_shortopts, (char *) NULL);
469 longopts = xmalloc (sizeof (std_longopts) + md_longopts_size + sizeof (struct option));
470 memcpy (longopts, std_longopts, sizeof (std_longopts));
471 memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size);
472 memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size,
473 0, sizeof (struct option));
475 /* Make a local copy of the old argv. */
479 /* Initialize a new argv that contains no options. */
480 new_argv = xmalloc (sizeof (char *) * (old_argc + 1));
481 new_argv[0] = old_argv[0];
483 new_argv[new_argc] = NULL;
487 /* getopt_long_only is like getopt_long, but '-' as well as '--' can
488 indicate a long option. */
490 int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts,
499 /* md_parse_option should return 1 if it recognizes optc,
501 if (md_parse_option (optc, optarg) != 0)
503 /* `-v' isn't included in the general short_opts list, so check for
504 it explicitly here before deciding we've gotten a bad argument. */
508 /* Telling getopt to treat -v's value as optional can result
509 in it picking up a following filename argument here. The
510 VMS code in md_parse_option can return 0 in that case,
511 but it has no way of pushing the filename argument back. */
512 if (optarg && *optarg)
513 new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
528 case 1: /* File name. */
529 if (!strcmp (optarg, "-"))
531 new_argv[new_argc++] = optarg;
532 new_argv[new_argc] = NULL;
535 case OPTION_TARGET_HELP:
536 md_show_usage (stdout);
546 case OPTION_STATISTICS:
547 flag_print_statistics = 1;
550 case OPTION_STRIP_LOCAL_ABSOLUTE:
551 flag_strip_local_absolute = 1;
554 case OPTION_TRADITIONAL_FORMAT:
555 flag_traditional_format = 1;
559 /* This output is intended to follow the GNU standards document. */
561 printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
563 printf (_("GNU assembler %s\n"), VERSION);
565 printf (_("Copyright 2002 Free Software Foundation, Inc.\n"));
567 This program is free software; you may redistribute it under the terms of\n\
568 the GNU General Public License. This program has absolutely no warranty.\n"));
569 printf (_("This assembler was configured for a target of `%s'.\n"),
573 case OPTION_EMULATION:
574 #ifdef USE_EMULATIONS
575 if (strcmp (optarg, this_emulation->name))
576 as_fatal (_("multiple emulation names specified"));
578 as_fatal (_("emulations not handled in this configuration"));
582 case OPTION_DUMPCONFIG:
583 fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS);
584 fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL);
585 fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU);
586 #ifdef TARGET_OBJ_FORMAT
587 fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
590 fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
598 struct defsym_list *n;
600 for (s = optarg; *s != '\0' && *s != '='; s++)
603 as_fatal (_("bad defsym; format is --defsym name=value"));
606 i = bfd_scan_vma (s, (const char **) NULL, 0);
608 i = strtol (s, (char **) NULL, 0);
610 n = xmalloc (sizeof *n);
621 /* optarg is the name of the file containing the instruction
622 formats, opcodes, register names, etc. */
623 struct itbl_file_list *n;
627 as_warn (_("no file name following -t option"));
631 n = xmalloc (sizeof * n);
632 n->next = itbl_files;
636 /* Parse the file and add the new instructions to our internal
637 table. If multiple instruction tables are specified, the
638 information from this table gets appended onto the existing
640 itbl_files->name = xstrdup (optarg);
641 if (itbl_parse (itbl_files->name) != 0)
642 as_fatal (_("failed to read instruction table %s\n"),
648 start_dependencies (optarg);
651 case OPTION_GSTABS_PLUS:
652 use_gnu_debug_info_extensions = 1;
655 debug_type = DEBUG_STABS;
659 debug_type = DEBUG_DWARF2;
663 flag_signed_overflow_ok = 1;
666 #ifndef WORKING_DOT_WORD
668 flag_warn_displacement = 1;
672 flag_keep_locals = 1;
675 case OPTION_LISTING_LHS_WIDTH:
676 listing_lhs_width = atoi (optarg);
677 if (listing_lhs_width_second < listing_lhs_width)
678 listing_lhs_width_second = listing_lhs_width;
680 case OPTION_LISTING_LHS_WIDTH2:
682 int tmp = atoi (optarg);
683 if (tmp > listing_lhs_width)
684 listing_lhs_width_second = tmp;
687 case OPTION_LISTING_RHS_WIDTH:
688 listing_rhs_width = atoi (optarg);
690 case OPTION_LISTING_CONT_LINES:
691 listing_lhs_cont_lines = atoi (optarg);
702 flag_readonly_data_in_text = 1;
706 flag_no_warnings = 1;
710 flag_no_warnings = 0;
711 flag_fatal_warnings = 0;
714 case OPTION_WARN_FATAL:
715 flag_no_warnings = 0;
716 flag_fatal_warnings = 1;
719 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
720 case OPTION_EXECSTACK:
722 flag_noexecstack = 0;
725 case OPTION_NOEXECSTACK:
726 flag_noexecstack = 1;
731 flag_always_generate_output = 1;
737 if (md_parse_option (optc, optarg) != 0)
745 listing |= LISTING_NOCOND;
748 listing |= LISTING_NODEBUG;
751 listing |= LISTING_HLL;
754 listing |= LISTING_LISTING;
757 listing |= LISTING_MACEXP;
760 listing |= LISTING_NOFORM;
763 listing |= LISTING_SYMBOLS;
766 listing_filename = xstrdup (optarg + 1);
767 optarg += strlen (listing_filename);
770 as_fatal (_("invalid listing option `%c'"), *optarg);
777 listing = LISTING_DEFAULT;
781 /* DEBUG is implemented: it debugs different
782 things from other people's assemblers. */
787 flag_no_comments = 1;
791 { /* Include file directory. */
792 char *temp = xstrdup (optarg);
793 add_include_dir (temp);
798 out_file_name = xstrdup (optarg);
805 /* -X means treat warnings as errors. */
816 #ifdef md_after_parse_args
817 md_after_parse_args ();
822 dump_statistics (void)
825 char *lim = (char *) sbrk (0);
827 long run_time = get_run_time () - start_time;
829 fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"),
830 myname, run_time / 1000000, run_time % 1000000);
832 fprintf (stderr, _("%s: data size %ld\n"),
833 myname, (long) (lim - (char *) &environ));
836 subsegs_print_statistics (stderr);
837 write_print_statistics (stderr);
838 symbol_print_statistics (stderr);
839 read_print_statistics (stderr);
841 #ifdef tc_print_statistics
842 tc_print_statistics (stderr);
845 #ifdef obj_print_statistics
846 obj_print_statistics (stderr);
850 /* The interface between the macro code and gas expression handling. */
853 macro_expr (const char *emsg, int idx, sb *in, int *val)
860 hold = input_line_pointer;
861 input_line_pointer = in->ptr + idx;
863 idx = input_line_pointer - in->ptr;
864 input_line_pointer = hold;
866 if (ex.X_op != O_constant)
869 *val = (int) ex.X_add_number;
874 /* Here to attempt 1 pass over each input file.
875 We scan argv[*] looking for filenames or exactly "" which is
876 shorthand for stdin. Any argv that is NULL is not a file-name.
877 We set need_pass_2 TRUE if, after this, we still have unresolved
878 expressions of the form (unknown value)+-(unknown value).
880 Note the un*x semantics: there is only 1 logical input file, but it
881 may be a catenation of many 'physical' input files. */
884 perform_an_assembly_pass (int argc, char ** argv)
893 #ifndef BFD_ASSEMBLER
897 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
898 segment_info[i].fix_root = 0;
900 /* Create the three fixed ones. */
905 seg = subseg_new (".wtext", 0);
907 seg = subseg_new (".text", 0);
909 assert (seg == SEG_E0);
910 seg = subseg_new (".data", 0);
911 assert (seg == SEG_E1);
912 seg = subseg_new (".bss", 0);
913 assert (seg == SEG_E2);
915 create_target_segments ();
919 #else /* not MANY_SEGMENTS. */
920 text_fix_root = NULL;
921 data_fix_root = NULL;
923 #endif /* not MANY_SEGMENTS. */
924 #else /* BFD_ASSEMBLER. */
925 /* Create the standard sections, and those the assembler uses
927 text_section = subseg_new (TEXT_SECTION_NAME, 0);
928 data_section = subseg_new (DATA_SECTION_NAME, 0);
929 bss_section = subseg_new (BSS_SECTION_NAME, 0);
930 /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
931 to have relocs, otherwise we don't find out in time. */
932 applicable = bfd_applicable_section_flags (stdoutput);
933 bfd_set_section_flags (stdoutput, text_section,
934 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
935 | SEC_CODE | SEC_READONLY));
936 bfd_set_section_flags (stdoutput, data_section,
937 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
939 bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC);
940 seg_info (bss_section)->bss = 1;
941 subseg_new (BFD_ABS_SECTION_NAME, 0);
942 subseg_new (BFD_UND_SECTION_NAME, 0);
943 reg_section = subseg_new ("*GAS `reg' section*", 0);
944 expr_section = subseg_new ("*GAS `expr' section*", 0);
946 #endif /* BFD_ASSEMBLER. */
948 subseg_set (text_section, 0);
950 /* This may add symbol table entries, which requires having an open BFD,
951 and sections already created, in BFD_ASSEMBLER mode. */
968 { /* Is it a file-name argument? */
971 /* argv->"" if stdin desired, else->filename. */
972 read_a_source_file (*argv);
974 argv++; /* Completed that argv. */
977 read_a_source_file ("");
982 main (int argc, char ** argv)
988 start_time = get_run_time ();
990 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
991 setlocale (LC_MESSAGES, "");
993 #if defined (HAVE_SETLOCALE)
994 setlocale (LC_CTYPE, "");
996 bindtextdomain (PACKAGE, LOCALEDIR);
997 textdomain (PACKAGE);
1002 #ifdef HOST_SPECIAL_INIT
1003 HOST_SPECIAL_INIT (argc, argv);
1007 xmalloc_set_program_name (myname);
1009 START_PROGRESS (myname, 0);
1011 #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
1012 #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
1015 out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
1018 #ifdef BFD_ASSEMBLER
1020 bfd_set_error_program_name (myname);
1023 #ifdef USE_EMULATIONS
1024 select_emulation_mode (argc, argv);
1031 parse_args (&argc, &argv);
1033 input_scrub_begin ();
1036 if (flag_print_statistics)
1037 xatexit (dump_statistics);
1039 macro_alternate = 0;
1042 macro_strip_at = flag_mri;
1045 /* For compatibility with the AMD 29K family macro assembler
1047 macro_alternate = 1;
1051 macro_init (macro_alternate, flag_mri, macro_strip_at, macro_expr);
1055 #ifdef BFD_ASSEMBLER
1056 output_file_create (out_file_name);
1057 assert (stdoutput != 0);
1060 #ifdef tc_init_after_args
1061 tc_init_after_args ();
1066 /* Now that we have fully initialized, and have created the output
1067 file, define any symbols requested by --defsym command line
1069 while (defsyms != NULL)
1072 struct defsym_list *next;
1074 sym = symbol_new (defsyms->name, absolute_section, defsyms->value,
1075 &zero_address_frag);
1076 symbol_table_insert (sym);
1077 next = defsyms->next;
1085 perform_an_assembly_pass (argc, argv);
1087 cond_finish_check (-1);
1093 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
1094 if ((flag_execstack || flag_noexecstack)
1095 && OUTPUT_FLAVOR == bfd_target_elf_flavour)
1099 gnustack = subseg_new (".note.GNU-stack", 0);
1100 bfd_set_section_flags (stdoutput, gnustack,
1101 SEC_READONLY | (flag_execstack ? SEC_CODE : 0));
1106 /* If we've been collecting dwarf2 .debug_line info, either for
1107 assembly debugging or on behalf of the compiler, emit it now. */
1110 /* If we constructed dwarf2 .eh_frame info, either via .cfi
1111 directives from the user or by the backend, emit it now. */
1114 if (seen_at_least_1_file ()
1115 && (flag_always_generate_output || had_errors () == 0))
1120 #if defined (BFD_ASSEMBLER) || !defined (BFD)
1121 /* This used to be done at the start of write_object_file in
1122 write.c, but that caused problems when doing listings when
1123 keep_it was zero. This could probably be moved above md_end, but
1124 I didn't want to risk the change. */
1129 write_object_file ();
1132 listing_print (listing_filename);
1135 #ifndef OBJ_VMS /* Does its own file handling. */
1136 #ifndef BFD_ASSEMBLER
1139 output_file_close (out_file_name);
1142 if (flag_fatal_warnings && had_warnings () > 0 && had_errors () == 0)
1143 as_bad (_("%d warnings, treating warnings as errors"), had_warnings ());
1145 if (had_errors () > 0 && ! flag_always_generate_output)
1149 unlink (out_file_name);
1153 END_PROGRESS (myname);
1155 /* Use xexit instead of return, because under VMS environments they
1156 may not place the same interpretation on the value given. */
1157 if (had_errors () > 0)
1158 xexit (EXIT_FAILURE);
1160 /* Only generate dependency file if assembler was successful. */
1161 print_dependencies ();
1163 xexit (EXIT_SUCCESS);