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;
91 /* Maximum level of macro nesting. */
92 int max_macro_nest = 100;
97 /* The default obstack chunk size. If we set this to zero, the
98 obstack code will use whatever will fit in a 4096 byte block. */
101 /* To monitor memory allocation more effectively, make this non-zero.
102 Then the chunk sizes for gas and bfd will be reduced. */
103 int debug_memory = 0;
105 /* Enable verbose mode. */
116 /* Name of listing file. */
117 static char *listing_filename = NULL;
119 static struct defsym_list *defsyms;
121 static struct itbl_file_list *itbl_files;
123 static long start_time;
126 #ifdef USE_EMULATIONS
127 #define EMULATION_ENVIRON "AS_EMULATION"
129 extern struct emulation mipsbelf, mipslelf, mipself;
130 extern struct emulation mipsbecoff, mipslecoff, mipsecoff;
131 extern struct emulation i386coff, i386elf, i386aout;
132 extern struct emulation crisaout, criself;
134 static struct emulation *const emulations[] = { EMULATIONS };
135 static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]);
138 select_emulation_mode (int argc, char **argv)
143 for (i = 1; i < argc; i++)
144 if (!strncmp ("--em", argv[i], 4))
150 p = strchr (argv[i], '=');
157 as_fatal (_("missing emulation mode name"));
162 em = getenv (EMULATION_ENVIRON);
164 em = DEFAULT_EMULATION;
168 for (i = 0; i < n_emulations; i++)
169 if (!strcmp (emulations[i]->name, em))
171 if (i == n_emulations)
172 as_fatal (_("unrecognized emulation name `%s'"), em);
173 this_emulation = emulations[i];
176 this_emulation = emulations[0];
178 this_emulation->init ();
182 default_emul_bfd_name (void)
189 common_emul_init (void)
191 this_format = this_emulation->format;
193 if (this_emulation->leading_underscore == 2)
194 this_emulation->leading_underscore = this_format->dfl_leading_underscore;
196 if (this_emulation->default_endian != 2)
197 target_big_endian = this_emulation->default_endian;
199 if (this_emulation->fake_label_name == 0)
201 if (this_emulation->leading_underscore)
202 this_emulation->fake_label_name = "L0\001";
204 /* What other parameters should we test? */
205 this_emulation->fake_label_name = ".L0\001";
211 print_version_id (void)
220 fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s"),
221 VERSION, TARGET_ALIAS, BFD_VERSION_STRING);
223 fprintf (stderr, _("GNU assembler version %s (%s)"), VERSION, TARGET_ALIAS);
225 fprintf (stderr, "\n");
229 show_usage (FILE * stream)
231 fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
233 fprintf (stream, _("\
235 -a[sub-option...] turn on listings\n\
236 Sub-options [default hls]:\n\
237 c omit false conditionals\n\
238 d omit debugging directives\n\
239 h include high-level source\n\
240 l include assembly\n\
241 m include macro expansions\n\
242 n omit forms processing\n\
244 =FILE list to FILE (must be last sub-option)\n"));
246 fprintf (stream, _("\
247 -D produce assembler debugging messages\n"));
248 fprintf (stream, _("\
249 --defsym SYM=VAL define symbol SYM to given value\n"));
250 #ifdef USE_EMULATIONS
257 for (i = 0; i < n_emulations - 1; i++)
258 fprintf (stream, "%s | ", emulations[i]->name);
259 fprintf (stream, "%s]\n", emulations[i]->name);
261 def_em = getenv (EMULATION_ENVIRON);
263 def_em = DEFAULT_EMULATION;
264 fprintf (stream, _("\
265 emulate output (default %s)\n"), def_em);
268 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
269 fprintf (stream, _("\
270 --execstack require executable stack for this object\n"));
271 fprintf (stream, _("\
272 --noexecstack don't require executable stack for this object\n"));
274 fprintf (stream, _("\
275 -f skip whitespace and comment preprocessing\n"));
276 fprintf (stream, _("\
277 --gstabs generate stabs debugging information\n"));
278 fprintf (stream, _("\
279 --gdwarf2 generate DWARF2 debugging information\n"));
280 fprintf (stream, _("\
281 --help show this message and exit\n"));
282 fprintf (stream, _("\
283 --target-help show target specific options\n"));
284 fprintf (stream, _("\
285 -I DIR add DIR to search list for .include directives\n"));
286 fprintf (stream, _("\
287 -J don't warn about signed overflow\n"));
288 fprintf (stream, _("\
289 -K warn when differences altered for long displacements\n"));
290 fprintf (stream, _("\
291 -L,--keep-locals keep local symbols (e.g. starting with `L')\n"));
292 fprintf (stream, _("\
293 -M,--mri assemble in MRI compatibility mode\n"));
294 fprintf (stream, _("\
295 --MD FILE write dependency information in FILE (default none)\n"));
296 fprintf (stream, _("\
298 fprintf (stream, _("\
299 -o OBJFILE name the object-file output OBJFILE (default a.out)\n"));
300 fprintf (stream, _("\
301 -R fold data section into text section\n"));
302 fprintf (stream, _("\
303 --statistics print various measured statistics from execution\n"));
304 fprintf (stream, _("\
305 --strip-local-absolute strip local absolute symbols\n"));
306 fprintf (stream, _("\
307 --traditional-format Use same format as native assembler when possible\n"));
308 fprintf (stream, _("\
309 --version print assembler version number and exit\n"));
310 fprintf (stream, _("\
311 -W --no-warn suppress warnings\n"));
312 fprintf (stream, _("\
313 --warn don't suppress warnings\n"));
314 fprintf (stream, _("\
315 --fatal-warnings treat warnings as errors\n"));
316 fprintf (stream, _("\
317 --itbl INSTTBL extend instruction set to include instructions\n\
318 matching the specifications defined in file INSTTBL\n"));
319 fprintf (stream, _("\
321 fprintf (stream, _("\
323 fprintf (stream, _("\
324 -Z generate object file even after errors\n"));
325 fprintf (stream, _("\
326 --listing-lhs-width set the width in words of the output data column of\n\
328 fprintf (stream, _("\
329 --listing-lhs-width2 set the width in words of the continuation lines\n\
330 of the output data column; ignored if smaller than\n\
331 the width of the first line\n"));
332 fprintf (stream, _("\
333 --listing-rhs-width set the max width in characters of the lines from\n\
334 the source file\n"));
335 fprintf (stream, _("\
336 --listing-cont-lines set the maximum number of continuation lines used\n\
337 for the output data column of the listing\n"));
339 md_show_usage (stream);
341 fputc ('\n', stream);
342 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
345 /* Since it is easy to do here we interpret the special arg "-"
346 to mean "use stdin" and we set that argv[] pointing to "".
347 After we have munged argv[], the only things left are source file
348 name(s) and ""(s) denoting stdin. These file names are used
349 (perhaps more than once) later.
351 check for new machine-dep cmdline options in
352 md_parse_option definitions in config/tc-*.c. */
355 parse_args (int * pargc, char *** pargv)
361 /* Starting the short option string with '-' is for programs that
362 expect options and other ARGV-elements in any order and that care about
363 the ordering of the two. We describe each non-option ARGV-element
364 as if it were the argument of an option with character code 1. */
366 extern const char *md_shortopts;
367 static const char std_shortopts[] =
370 #ifndef WORKING_DOT_WORD
371 /* -K is not meaningful if .word is not being hacked. */
374 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'I', ':', 'o', ':',
376 /* -v takes an argument on VMS, so we don't make it a generic
381 /* New option for extending instruction set (see also --itbl below). */
385 struct option *longopts;
386 extern struct option md_longopts[];
387 extern size_t md_longopts_size;
388 /* Codes used for the long options with no short synonyms. */
391 OPTION_HELP = OPTION_STD_BASE,
400 OPTION_LISTING_LHS_WIDTH,
401 OPTION_LISTING_LHS_WIDTH2,
402 OPTION_LISTING_RHS_WIDTH,
403 OPTION_LISTING_CONT_LINES,
406 OPTION_STRIP_LOCAL_ABSOLUTE,
407 OPTION_TRADITIONAL_FORMAT,
416 static const struct option std_longopts[] =
418 {"help", no_argument, NULL, OPTION_HELP},
419 /* getopt allows abbreviations, so we do this to stop it from
420 treating -k as an abbreviation for --keep-locals. Some
421 ports use -k to enable PIC assembly. */
422 {"keep-locals", no_argument, NULL, 'L'},
423 {"keep-locals", no_argument, NULL, 'L'},
424 {"mri", no_argument, NULL, 'M'},
425 {"nocpp", no_argument, NULL, OPTION_NOCPP},
426 {"statistics", no_argument, NULL, OPTION_STATISTICS},
427 {"version", no_argument, NULL, OPTION_VERSION},
428 {"dump-config", no_argument, NULL, OPTION_DUMPCONFIG},
429 {"verbose", no_argument, NULL, OPTION_VERBOSE},
430 {"emulation", required_argument, NULL, OPTION_EMULATION},
431 {"defsym", required_argument, NULL, OPTION_DEFSYM},
432 /* New option for extending instruction set (see also -t above).
433 The "-t file" or "--itbl file" option extends the basic set of
434 valid instructions by reading "file", a text file containing a
435 list of instruction formats. The additional opcodes and their
436 formats are added to the built-in set of instructions, and
437 mnemonics for new registers may also be defined. */
438 {"itbl", required_argument, NULL, OPTION_INSTTBL},
439 {"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH},
440 {"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2},
441 {"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH},
442 {"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES},
443 {"MD", required_argument, NULL, OPTION_DEPFILE},
444 {"gstabs", no_argument, NULL, OPTION_GSTABS},
445 {"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE},
446 {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
447 {"gdwarf2", no_argument, NULL, OPTION_GDWARF2},
448 {"no-warn", no_argument, NULL, 'W'},
449 {"warn", no_argument, NULL, OPTION_WARN},
450 {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
451 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
452 {"execstack", no_argument, NULL, OPTION_EXECSTACK},
453 {"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK},
455 /* Treat '-f' as a long switch so that getopt will not accept
456 -f<some-text> as a synonym for -f. This can cause confusion
457 when -f switches are passed through from the compiler.
458 FIXME - should we handle other single character switches in the
460 {"f", no_argument, NULL, 'f'},
461 {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
462 {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
463 /* When you add options here, check that they do not collide with
464 OPTION_MD_BASE. See as.h. */
467 /* Construct the option lists from the standard list and the target
468 dependent list. Include space for an extra NULL option and
469 always NULL terminate. */
470 shortopts = concat (std_shortopts, md_shortopts, (char *) NULL);
471 longopts = xmalloc (sizeof (std_longopts) + md_longopts_size + sizeof (struct option));
472 memcpy (longopts, std_longopts, sizeof (std_longopts));
473 memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size);
474 memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size,
475 0, sizeof (struct option));
477 /* Make a local copy of the old argv. */
481 /* Initialize a new argv that contains no options. */
482 new_argv = xmalloc (sizeof (char *) * (old_argc + 1));
483 new_argv[0] = old_argv[0];
485 new_argv[new_argc] = NULL;
489 /* getopt_long_only is like getopt_long, but '-' as well as '--' can
490 indicate a long option. */
492 int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts,
501 /* md_parse_option should return 1 if it recognizes optc,
503 if (md_parse_option (optc, optarg) != 0)
505 /* `-v' isn't included in the general short_opts list, so check for
506 it explicity here before deciding we've gotten a bad argument. */
510 /* Telling getopt to treat -v's value as optional can result
511 in it picking up a following filename argument here. The
512 VMS code in md_parse_option can return 0 in that case,
513 but it has no way of pushing the filename argument back. */
514 if (optarg && *optarg)
515 new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
530 case 1: /* File name. */
531 if (!strcmp (optarg, "-"))
533 new_argv[new_argc++] = optarg;
534 new_argv[new_argc] = NULL;
537 case OPTION_TARGET_HELP:
538 md_show_usage (stdout);
548 case OPTION_STATISTICS:
549 flag_print_statistics = 1;
552 case OPTION_STRIP_LOCAL_ABSOLUTE:
553 flag_strip_local_absolute = 1;
556 case OPTION_TRADITIONAL_FORMAT:
557 flag_traditional_format = 1;
561 /* This output is intended to follow the GNU standards document. */
563 printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
565 printf (_("GNU assembler %s\n"), VERSION);
567 printf (_("Copyright 2002 Free Software Foundation, Inc.\n"));
569 This program is free software; you may redistribute it under the terms of\n\
570 the GNU General Public License. This program has absolutely no warranty.\n"));
571 printf (_("This assembler was configured for a target of `%s'.\n"),
575 case OPTION_EMULATION:
576 #ifdef USE_EMULATIONS
577 if (strcmp (optarg, this_emulation->name))
578 as_fatal (_("multiple emulation names specified"));
580 as_fatal (_("emulations not handled in this configuration"));
584 case OPTION_DUMPCONFIG:
585 fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS);
586 fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL);
587 fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU);
588 #ifdef TARGET_OBJ_FORMAT
589 fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
592 fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
600 struct defsym_list *n;
602 for (s = optarg; *s != '\0' && *s != '='; s++)
605 as_fatal (_("bad defsym; format is --defsym name=value"));
608 i = bfd_scan_vma (s, (const char **) NULL, 0);
610 i = strtol (s, (char **) NULL, 0);
612 n = xmalloc (sizeof *n);
623 /* optarg is the name of the file containing the instruction
624 formats, opcodes, register names, etc. */
625 struct itbl_file_list *n;
629 as_warn (_("no file name following -t option"));
633 n = xmalloc (sizeof * n);
634 n->next = itbl_files;
638 /* Parse the file and add the new instructions to our internal
639 table. If multiple instruction tables are specified, the
640 information from this table gets appended onto the existing
642 itbl_files->name = xstrdup (optarg);
643 if (itbl_parse (itbl_files->name) != 0)
644 as_fatal (_("failed to read instruction table %s\n"),
650 start_dependencies (optarg);
654 debug_type = DEBUG_STABS;
658 debug_type = DEBUG_DWARF2;
662 flag_signed_overflow_ok = 1;
665 #ifndef WORKING_DOT_WORD
667 flag_warn_displacement = 1;
671 flag_keep_locals = 1;
674 case OPTION_LISTING_LHS_WIDTH:
675 listing_lhs_width = atoi (optarg);
676 if (listing_lhs_width_second < listing_lhs_width)
677 listing_lhs_width_second = listing_lhs_width;
679 case OPTION_LISTING_LHS_WIDTH2:
681 int tmp = atoi (optarg);
682 if (tmp > listing_lhs_width)
683 listing_lhs_width_second = tmp;
686 case OPTION_LISTING_RHS_WIDTH:
687 listing_rhs_width = atoi (optarg);
689 case OPTION_LISTING_CONT_LINES:
690 listing_lhs_cont_lines = atoi (optarg);
701 flag_readonly_data_in_text = 1;
705 flag_no_warnings = 1;
709 flag_no_warnings = 0;
710 flag_fatal_warnings = 0;
713 case OPTION_WARN_FATAL:
714 flag_no_warnings = 0;
715 flag_fatal_warnings = 1;
718 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
719 case OPTION_EXECSTACK:
721 flag_noexecstack = 0;
724 case OPTION_NOEXECSTACK:
725 flag_noexecstack = 1;
730 flag_always_generate_output = 1;
736 if (md_parse_option (optc, optarg) != 0)
744 listing |= LISTING_NOCOND;
747 listing |= LISTING_NODEBUG;
750 listing |= LISTING_HLL;
753 listing |= LISTING_LISTING;
756 listing |= LISTING_MACEXP;
759 listing |= LISTING_NOFORM;
762 listing |= LISTING_SYMBOLS;
765 listing_filename = xstrdup (optarg + 1);
766 optarg += strlen (listing_filename);
769 as_fatal (_("invalid listing option `%c'"), *optarg);
776 listing = LISTING_DEFAULT;
780 /* DEBUG is implemented: it debugs different
781 things from other people's assemblers. */
786 flag_no_comments = 1;
790 { /* Include file directory. */
791 char *temp = xstrdup (optarg);
792 add_include_dir (temp);
797 out_file_name = xstrdup (optarg);
804 /* -X means treat warnings as errors. */
815 #ifdef md_after_parse_args
816 md_after_parse_args ();
821 dump_statistics (void)
824 char *lim = (char *) sbrk (0);
826 long run_time = get_run_time () - start_time;
828 fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"),
829 myname, run_time / 1000000, run_time % 1000000);
831 fprintf (stderr, _("%s: data size %ld\n"),
832 myname, (long) (lim - (char *) &environ));
835 subsegs_print_statistics (stderr);
836 write_print_statistics (stderr);
837 symbol_print_statistics (stderr);
838 read_print_statistics (stderr);
840 #ifdef tc_print_statistics
841 tc_print_statistics (stderr);
844 #ifdef obj_print_statistics
845 obj_print_statistics (stderr);
849 /* The interface between the macro code and gas expression handling. */
852 macro_expr (const char *emsg, int idx, sb *in, int *val)
859 hold = input_line_pointer;
860 input_line_pointer = in->ptr + idx;
862 idx = input_line_pointer - in->ptr;
863 input_line_pointer = hold;
865 if (ex.X_op != O_constant)
868 *val = (int) ex.X_add_number;
873 /* Here to attempt 1 pass over each input file.
874 We scan argv[*] looking for filenames or exactly "" which is
875 shorthand for stdin. Any argv that is NULL is not a file-name.
876 We set need_pass_2 TRUE if, after this, we still have unresolved
877 expressions of the form (unknown value)+-(unknown value).
879 Note the un*x semantics: there is only 1 logical input file, but it
880 may be a catenation of many 'physical' input files. */
883 perform_an_assembly_pass (int argc, char ** argv)
892 #ifndef BFD_ASSEMBLER
896 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
897 segment_info[i].fix_root = 0;
899 /* Create the three fixed ones. */
904 seg = subseg_new (".wtext", 0);
906 seg = subseg_new (".text", 0);
908 assert (seg == SEG_E0);
909 seg = subseg_new (".data", 0);
910 assert (seg == SEG_E1);
911 seg = subseg_new (".bss", 0);
912 assert (seg == SEG_E2);
914 create_target_segments ();
918 #else /* not MANY_SEGMENTS. */
919 text_fix_root = NULL;
920 data_fix_root = NULL;
922 #endif /* not MANY_SEGMENTS. */
923 #else /* BFD_ASSEMBLER. */
924 /* Create the standard sections, and those the assembler uses
926 text_section = subseg_new (TEXT_SECTION_NAME, 0);
927 data_section = subseg_new (DATA_SECTION_NAME, 0);
928 bss_section = subseg_new (BSS_SECTION_NAME, 0);
929 /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
930 to have relocs, otherwise we don't find out in time. */
931 applicable = bfd_applicable_section_flags (stdoutput);
932 bfd_set_section_flags (stdoutput, text_section,
933 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
934 | SEC_CODE | SEC_READONLY));
935 bfd_set_section_flags (stdoutput, data_section,
936 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
938 bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC);
939 seg_info (bss_section)->bss = 1;
940 subseg_new (BFD_ABS_SECTION_NAME, 0);
941 subseg_new (BFD_UND_SECTION_NAME, 0);
942 reg_section = subseg_new ("*GAS `reg' section*", 0);
943 expr_section = subseg_new ("*GAS `expr' section*", 0);
945 #endif /* BFD_ASSEMBLER. */
947 subseg_set (text_section, 0);
949 /* This may add symbol table entries, which requires having an open BFD,
950 and sections already created, in BFD_ASSEMBLER mode. */
967 { /* Is it a file-name argument? */
970 /* argv->"" if stdin desired, else->filename. */
971 read_a_source_file (*argv);
973 argv++; /* Completed that argv. */
976 read_a_source_file ("");
981 main (int argc, char ** argv)
987 start_time = get_run_time ();
989 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
990 setlocale (LC_MESSAGES, "");
992 #if defined (HAVE_SETLOCALE)
993 setlocale (LC_CTYPE, "");
995 bindtextdomain (PACKAGE, LOCALEDIR);
996 textdomain (PACKAGE);
1001 #ifdef HOST_SPECIAL_INIT
1002 HOST_SPECIAL_INIT (argc, argv);
1006 xmalloc_set_program_name (myname);
1008 START_PROGRESS (myname, 0);
1010 #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
1011 #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
1014 out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
1017 #ifdef BFD_ASSEMBLER
1019 bfd_set_error_program_name (myname);
1022 #ifdef USE_EMULATIONS
1023 select_emulation_mode (argc, argv);
1030 parse_args (&argc, &argv);
1032 input_scrub_begin ();
1035 if (flag_print_statistics)
1036 xatexit (dump_statistics);
1038 macro_alternate = 0;
1041 macro_strip_at = flag_mri;
1044 /* For compatibility with the AMD 29K family macro assembler
1046 macro_alternate = 1;
1050 macro_init (macro_alternate, flag_mri, macro_strip_at, macro_expr);
1054 #ifdef BFD_ASSEMBLER
1055 output_file_create (out_file_name);
1056 assert (stdoutput != 0);
1059 #ifdef tc_init_after_args
1060 tc_init_after_args ();
1065 /* Now that we have fully initialized, and have created the output
1066 file, define any symbols requested by --defsym command line
1068 while (defsyms != NULL)
1071 struct defsym_list *next;
1073 sym = symbol_new (defsyms->name, absolute_section, defsyms->value,
1074 &zero_address_frag);
1075 symbol_table_insert (sym);
1076 next = defsyms->next;
1084 perform_an_assembly_pass (argc, argv);
1086 cond_finish_check (-1);
1092 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
1093 if ((flag_execstack || flag_noexecstack)
1094 && OUTPUT_FLAVOR == bfd_target_elf_flavour)
1098 gnustack = subseg_new (".note.GNU-stack", 0);
1099 bfd_set_section_flags (stdoutput, gnustack,
1100 SEC_READONLY | (flag_execstack ? SEC_CODE : 0));
1105 /* If we've been collecting dwarf2 .debug_line info, either for
1106 assembly debugging or on behalf of the compiler, emit it now. */
1109 /* If we constructed dwarf2 .eh_frame info, either via .cfi
1110 directives from the user or by the backend, emit it now. */
1113 if (seen_at_least_1_file ()
1114 && (flag_always_generate_output || had_errors () == 0))
1119 #if defined (BFD_ASSEMBLER) || !defined (BFD)
1120 /* This used to be done at the start of write_object_file in
1121 write.c, but that caused problems when doing listings when
1122 keep_it was zero. This could probably be moved above md_end, but
1123 I didn't want to risk the change. */
1128 write_object_file ();
1131 listing_print (listing_filename);
1134 #ifndef OBJ_VMS /* Does its own file handling. */
1135 #ifndef BFD_ASSEMBLER
1138 output_file_close (out_file_name);
1141 if (flag_fatal_warnings && had_warnings () > 0 && had_errors () == 0)
1142 as_bad (_("%d warnings, treating warnings as errors"), had_warnings ());
1144 if (had_errors () > 0 && ! flag_always_generate_output)
1148 unlink (out_file_name);
1152 END_PROGRESS (myname);
1154 /* Use xexit instead of return, because under VMS environments they
1155 may not place the same interpretation on the value given. */
1156 if (had_errors () > 0)
1157 xexit (EXIT_FAILURE);
1159 /* Only generate dependency file if assembler was successful. */
1160 print_dependencies ();
1162 xexit (EXIT_SUCCESS);