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', 'f', '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 {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
456 /* When you add options here, check that they do not collide with
457 OPTION_MD_BASE. See as.h. */
460 /* Construct the option lists from the standard list and the target
461 dependent list. Include space for an extra NULL option and
462 always NULL terminate. */
463 shortopts = concat (std_shortopts, md_shortopts, (char *) NULL);
464 longopts = xmalloc (sizeof (std_longopts) + md_longopts_size + sizeof (struct option));
465 memcpy (longopts, std_longopts, sizeof (std_longopts));
466 memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size);
467 memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size,
468 0, sizeof (struct option));
470 /* Make a local copy of the old argv. */
474 /* Initialize a new argv that contains no options. */
475 new_argv = xmalloc (sizeof (char *) * (old_argc + 1));
476 new_argv[0] = old_argv[0];
478 new_argv[new_argc] = NULL;
482 /* getopt_long_only is like getopt_long, but '-' as well as '--' can
483 indicate a long option. */
485 int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts,
494 /* md_parse_option should return 1 if it recognizes optc,
496 if (md_parse_option (optc, optarg) != 0)
498 /* `-v' isn't included in the general short_opts list, so check for
499 it explicity here before deciding we've gotten a bad argument. */
503 /* Telling getopt to treat -v's value as optional can result
504 in it picking up a following filename argument here. The
505 VMS code in md_parse_option can return 0 in that case,
506 but it has no way of pushing the filename argument back. */
507 if (optarg && *optarg)
508 new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
523 case 1: /* File name. */
524 if (!strcmp (optarg, "-"))
526 new_argv[new_argc++] = optarg;
527 new_argv[new_argc] = NULL;
530 case OPTION_TARGET_HELP:
531 md_show_usage (stdout);
541 case OPTION_STATISTICS:
542 flag_print_statistics = 1;
545 case OPTION_STRIP_LOCAL_ABSOLUTE:
546 flag_strip_local_absolute = 1;
549 case OPTION_TRADITIONAL_FORMAT:
550 flag_traditional_format = 1;
554 /* This output is intended to follow the GNU standards document. */
556 printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
558 printf (_("GNU assembler %s\n"), VERSION);
560 printf (_("Copyright 2002 Free Software Foundation, Inc.\n"));
562 This program is free software; you may redistribute it under the terms of\n\
563 the GNU General Public License. This program has absolutely no warranty.\n"));
564 printf (_("This assembler was configured for a target of `%s'.\n"),
568 case OPTION_EMULATION:
569 #ifdef USE_EMULATIONS
570 if (strcmp (optarg, this_emulation->name))
571 as_fatal (_("multiple emulation names specified"));
573 as_fatal (_("emulations not handled in this configuration"));
577 case OPTION_DUMPCONFIG:
578 fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS);
579 fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL);
580 fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU);
581 #ifdef TARGET_OBJ_FORMAT
582 fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
585 fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
593 struct defsym_list *n;
595 for (s = optarg; *s != '\0' && *s != '='; s++)
598 as_fatal (_("bad defsym; format is --defsym name=value"));
601 i = bfd_scan_vma (s, (const char **) NULL, 0);
603 i = strtol (s, (char **) NULL, 0);
605 n = xmalloc (sizeof *n);
616 /* optarg is the name of the file containing the instruction
617 formats, opcodes, register names, etc. */
618 struct itbl_file_list *n;
622 as_warn (_("no file name following -t option"));
626 n = xmalloc (sizeof * n);
627 n->next = itbl_files;
631 /* Parse the file and add the new instructions to our internal
632 table. If multiple instruction tables are specified, the
633 information from this table gets appended onto the existing
635 itbl_files->name = xstrdup (optarg);
636 if (itbl_parse (itbl_files->name) != 0)
637 as_fatal (_("failed to read instruction table %s\n"),
643 start_dependencies (optarg);
647 debug_type = DEBUG_STABS;
651 debug_type = DEBUG_DWARF2;
655 flag_signed_overflow_ok = 1;
658 #ifndef WORKING_DOT_WORD
660 flag_warn_displacement = 1;
664 flag_keep_locals = 1;
667 case OPTION_LISTING_LHS_WIDTH:
668 listing_lhs_width = atoi (optarg);
669 if (listing_lhs_width_second < listing_lhs_width)
670 listing_lhs_width_second = listing_lhs_width;
672 case OPTION_LISTING_LHS_WIDTH2:
674 int tmp = atoi (optarg);
675 if (tmp > listing_lhs_width)
676 listing_lhs_width_second = tmp;
679 case OPTION_LISTING_RHS_WIDTH:
680 listing_rhs_width = atoi (optarg);
682 case OPTION_LISTING_CONT_LINES:
683 listing_lhs_cont_lines = atoi (optarg);
694 flag_readonly_data_in_text = 1;
698 flag_no_warnings = 1;
702 flag_no_warnings = 0;
703 flag_fatal_warnings = 0;
706 case OPTION_WARN_FATAL:
707 flag_no_warnings = 0;
708 flag_fatal_warnings = 1;
711 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
712 case OPTION_EXECSTACK:
714 flag_noexecstack = 0;
717 case OPTION_NOEXECSTACK:
718 flag_noexecstack = 1;
723 flag_always_generate_output = 1;
729 if (md_parse_option (optc, optarg) != 0)
737 listing |= LISTING_NOCOND;
740 listing |= LISTING_NODEBUG;
743 listing |= LISTING_HLL;
746 listing |= LISTING_LISTING;
749 listing |= LISTING_MACEXP;
752 listing |= LISTING_NOFORM;
755 listing |= LISTING_SYMBOLS;
758 listing_filename = xstrdup (optarg + 1);
759 optarg += strlen (listing_filename);
762 as_fatal (_("invalid listing option `%c'"), *optarg);
769 listing = LISTING_DEFAULT;
773 /* DEBUG is implemented: it debugs different
774 things from other people's assemblers. */
779 flag_no_comments = 1;
783 { /* Include file directory. */
784 char *temp = xstrdup (optarg);
785 add_include_dir (temp);
790 out_file_name = xstrdup (optarg);
797 /* -X means treat warnings as errors. */
808 #ifdef md_after_parse_args
809 md_after_parse_args ();
814 dump_statistics (void)
817 char *lim = (char *) sbrk (0);
819 long run_time = get_run_time () - start_time;
821 fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"),
822 myname, run_time / 1000000, run_time % 1000000);
824 fprintf (stderr, _("%s: data size %ld\n"),
825 myname, (long) (lim - (char *) &environ));
828 subsegs_print_statistics (stderr);
829 write_print_statistics (stderr);
830 symbol_print_statistics (stderr);
831 read_print_statistics (stderr);
833 #ifdef tc_print_statistics
834 tc_print_statistics (stderr);
837 #ifdef obj_print_statistics
838 obj_print_statistics (stderr);
842 /* The interface between the macro code and gas expression handling. */
845 macro_expr (const char *emsg, int idx, sb *in, int *val)
852 hold = input_line_pointer;
853 input_line_pointer = in->ptr + idx;
855 idx = input_line_pointer - in->ptr;
856 input_line_pointer = hold;
858 if (ex.X_op != O_constant)
861 *val = (int) ex.X_add_number;
866 /* Here to attempt 1 pass over each input file.
867 We scan argv[*] looking for filenames or exactly "" which is
868 shorthand for stdin. Any argv that is NULL is not a file-name.
869 We set need_pass_2 TRUE if, after this, we still have unresolved
870 expressions of the form (unknown value)+-(unknown value).
872 Note the un*x semantics: there is only 1 logical input file, but it
873 may be a catenation of many 'physical' input files. */
876 perform_an_assembly_pass (int argc, char ** argv)
885 #ifndef BFD_ASSEMBLER
889 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
890 segment_info[i].fix_root = 0;
892 /* Create the three fixed ones. */
897 seg = subseg_new (".wtext", 0);
899 seg = subseg_new (".text", 0);
901 assert (seg == SEG_E0);
902 seg = subseg_new (".data", 0);
903 assert (seg == SEG_E1);
904 seg = subseg_new (".bss", 0);
905 assert (seg == SEG_E2);
907 create_target_segments ();
911 #else /* not MANY_SEGMENTS. */
912 text_fix_root = NULL;
913 data_fix_root = NULL;
915 #endif /* not MANY_SEGMENTS. */
916 #else /* BFD_ASSEMBLER. */
917 /* Create the standard sections, and those the assembler uses
919 text_section = subseg_new (TEXT_SECTION_NAME, 0);
920 data_section = subseg_new (DATA_SECTION_NAME, 0);
921 bss_section = subseg_new (BSS_SECTION_NAME, 0);
922 /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
923 to have relocs, otherwise we don't find out in time. */
924 applicable = bfd_applicable_section_flags (stdoutput);
925 bfd_set_section_flags (stdoutput, text_section,
926 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
927 | SEC_CODE | SEC_READONLY));
928 bfd_set_section_flags (stdoutput, data_section,
929 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
931 bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC);
932 seg_info (bss_section)->bss = 1;
933 subseg_new (BFD_ABS_SECTION_NAME, 0);
934 subseg_new (BFD_UND_SECTION_NAME, 0);
935 reg_section = subseg_new ("*GAS `reg' section*", 0);
936 expr_section = subseg_new ("*GAS `expr' section*", 0);
938 #endif /* BFD_ASSEMBLER. */
940 subseg_set (text_section, 0);
942 /* This may add symbol table entries, which requires having an open BFD,
943 and sections already created, in BFD_ASSEMBLER mode. */
960 { /* Is it a file-name argument? */
963 /* argv->"" if stdin desired, else->filename. */
964 read_a_source_file (*argv);
966 argv++; /* Completed that argv. */
969 read_a_source_file ("");
974 main (int argc, char ** argv)
980 start_time = get_run_time ();
982 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
983 setlocale (LC_MESSAGES, "");
985 #if defined (HAVE_SETLOCALE)
986 setlocale (LC_CTYPE, "");
988 bindtextdomain (PACKAGE, LOCALEDIR);
989 textdomain (PACKAGE);
994 #ifdef HOST_SPECIAL_INIT
995 HOST_SPECIAL_INIT (argc, argv);
999 xmalloc_set_program_name (myname);
1001 START_PROGRESS (myname, 0);
1003 #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
1004 #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
1007 out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
1010 #ifdef BFD_ASSEMBLER
1012 bfd_set_error_program_name (myname);
1015 #ifdef USE_EMULATIONS
1016 select_emulation_mode (argc, argv);
1023 parse_args (&argc, &argv);
1025 input_scrub_begin ();
1028 if (flag_print_statistics)
1029 xatexit (dump_statistics);
1031 macro_alternate = 0;
1034 macro_strip_at = flag_mri;
1037 /* For compatibility with the AMD 29K family macro assembler
1039 macro_alternate = 1;
1043 macro_init (macro_alternate, flag_mri, macro_strip_at, macro_expr);
1047 #ifdef BFD_ASSEMBLER
1048 output_file_create (out_file_name);
1049 assert (stdoutput != 0);
1052 #ifdef tc_init_after_args
1053 tc_init_after_args ();
1058 /* Now that we have fully initialized, and have created the output
1059 file, define any symbols requested by --defsym command line
1061 while (defsyms != NULL)
1064 struct defsym_list *next;
1066 sym = symbol_new (defsyms->name, absolute_section, defsyms->value,
1067 &zero_address_frag);
1068 symbol_table_insert (sym);
1069 next = defsyms->next;
1077 perform_an_assembly_pass (argc, argv);
1079 cond_finish_check (-1);
1085 #if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
1086 if ((flag_execstack || flag_noexecstack)
1087 && OUTPUT_FLAVOR == bfd_target_elf_flavour)
1091 gnustack = subseg_new (".note.GNU-stack", 0);
1092 bfd_set_section_flags (stdoutput, gnustack,
1093 SEC_READONLY | (flag_execstack ? SEC_CODE : 0));
1098 /* If we've been collecting dwarf2 .debug_line info, either for
1099 assembly debugging or on behalf of the compiler, emit it now. */
1102 /* If we constructed dwarf2 .eh_frame info, either via .cfi
1103 directives from the user or by the backend, emit it now. */
1106 if (seen_at_least_1_file ()
1107 && (flag_always_generate_output || had_errors () == 0))
1112 #if defined (BFD_ASSEMBLER) || !defined (BFD)
1113 /* This used to be done at the start of write_object_file in
1114 write.c, but that caused problems when doing listings when
1115 keep_it was zero. This could probably be moved above md_end, but
1116 I didn't want to risk the change. */
1121 write_object_file ();
1124 listing_print (listing_filename);
1127 #ifndef OBJ_VMS /* Does its own file handling. */
1128 #ifndef BFD_ASSEMBLER
1131 output_file_close (out_file_name);
1134 if (flag_fatal_warnings && had_warnings () > 0 && had_errors () == 0)
1135 as_bad (_("%d warnings, treating warnings as errors"), had_warnings ());
1137 if (had_errors () > 0 && ! flag_always_generate_output)
1141 unlink (out_file_name);
1145 END_PROGRESS (myname);
1147 /* Use xexit instead of return, because under VMS environments they
1148 may not place the same interpretation on the value given. */
1149 if (had_errors () > 0)
1150 xexit (EXIT_FAILURE);
1152 /* Only generate dependency file if assembler was successful. */
1153 print_dependencies ();
1155 xexit (EXIT_SUCCESS);