1 /* as.c - GAS main program.
2 Copyright (C) 1987, 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
3 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 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
32 * Since no-one else says they will support them in future: I
33 * don't support them now.
43 #include "output-file.h"
50 #define itbl_parse(itbl_file) 1
55 #ifdef NEED_DECLARATION_SBRK
60 static void show_usage PARAMS ((FILE *));
61 static void parse_args PARAMS ((int *, char ***));
62 static void dump_statistics PARAMS ((void));
63 static void perform_an_assembly_pass PARAMS ((int argc, char **argv));
64 static int macro_expr PARAMS ((const char *, int, sb *, int *));
66 int listing; /* true if a listing is wanted */
68 static char *listing_filename = NULL; /* Name of listing file. */
70 /* Type of debugging to generate. */
72 enum debug_info_type debug_type = DEBUG_NONE;
74 /* Maximum level of macro nesting. */
76 int max_macro_nest = 100;
78 char *myname; /* argv[0] */
80 segT reg_section, expr_section;
81 segT text_section, data_section, bss_section;
84 /* The default obstack chunk size. If we set this to zero, the
85 obstack code will use whatever will fit in a 4096 byte block. */
88 /* To monitor memory allocation more effectively, make this non-zero.
89 Then the chunk sizes for gas and bfd will be reduced. */
92 /* We build a list of defsyms as we read the options, and then define
93 them after we have initialized everything. */
97 struct defsym_list *next;
102 static struct defsym_list *defsyms;
104 /* Keep a record of the itbl files we read in. */
106 struct itbl_file_list
108 struct itbl_file_list *next;
112 static struct itbl_file_list *itbl_files;
114 #ifdef USE_EMULATIONS
115 #define EMULATION_ENVIRON "AS_EMULATION"
117 extern struct emulation mipsbelf, mipslelf, mipself;
118 extern struct emulation mipsbecoff, mipslecoff, mipsecoff;
119 extern struct emulation i386coff, i386elf, i386aout;
121 static struct emulation *const emulations[] = { EMULATIONS };
122 static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]);
124 static void select_emulation_mode PARAMS ((int, char **));
127 select_emulation_mode (argc, argv)
134 for (i = 1; i < argc; i++)
135 if (!strncmp ("--em", argv[i], 4))
141 p = strchr (argv[i], '=');
148 as_fatal (_("missing emulation mode name"));
153 em = getenv (EMULATION_ENVIRON);
155 em = DEFAULT_EMULATION;
159 for (i = 0; i < n_emulations; i++)
160 if (!strcmp (emulations[i]->name, em))
162 if (i == n_emulations)
163 as_fatal (_("unrecognized emulation name `%s'"), em);
164 this_emulation = emulations[i];
167 this_emulation = emulations[0];
169 this_emulation->init ();
173 default_emul_bfd_name ()
182 this_format = this_emulation->format;
184 if (this_emulation->leading_underscore == 2)
185 this_emulation->leading_underscore = this_format->dfl_leading_underscore;
187 if (this_emulation->default_endian != 2)
188 target_big_endian = this_emulation->default_endian;
190 if (this_emulation->fake_label_name == 0)
192 if (this_emulation->leading_underscore)
193 this_emulation->fake_label_name = "L0\001";
195 /* What other parameters should we test? */
196 this_emulation->fake_label_name = ".L0\001";
210 fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s"),
211 VERSION, TARGET_ALIAS, BFD_VERSION);
213 fprintf (stderr, _("GNU assembler version %s (%s)"), VERSION, TARGET_ALIAS);
215 fprintf (stderr, "\n");
222 fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
224 fprintf (stream, _("\
226 -a[sub-option...] turn on listings\n\
227 Sub-options [default hls]:\n\
228 c omit false conditionals\n\
229 d omit debugging directives\n\
230 h include high-level source\n\
231 l include assembly\n\
232 m include macro expansions\n\
233 n omit forms processing\n\
235 L include line debug statistics (if applicable)\n\
236 =FILE list to FILE (must be last sub-option)\n"));
238 fprintf (stream, _("\
239 -D produce assembler debugging messages\n"));
240 fprintf (stream, _("\
241 --defsym SYM=VAL define symbol SYM to given value\n"));
242 #ifdef USE_EMULATIONS
249 for (i = 0; i < n_emulations-1; i++)
250 fprintf (stream, "%s | ", emulations[i]->name);
251 fprintf (stream, "%s]\n", emulations[i]->name);
253 def_em = getenv (EMULATION_ENVIRON);
255 def_em = DEFAULT_EMULATION;
256 fprintf (stream, _("\
257 emulate output (default %s)\n"), def_em);
260 fprintf (stream, _("\
261 -f skip whitespace and comment preprocessing\n"));
262 fprintf (stream, _("\
263 --gstabs generate stabs debugging information\n"));
264 fprintf (stream, _("\
265 --gdwarf2 generate DWARF2 debugging information\n"));
266 fprintf (stream, _("\
267 --help show this message and exit\n"));
268 fprintf (stream, _("\
269 -I DIR add DIR to search list for .include directives\n"));
270 fprintf (stream, _("\
271 -J don't warn about signed overflow\n"));
272 fprintf (stream, _("\
273 -K warn when differences altered for long displacements\n"));
274 fprintf (stream, _("\
275 -L,--keep-locals keep local symbols (e.g. starting with `L')\n"));
276 fprintf (stream, _("\
277 -M,--mri assemble in MRI compatibility mode\n"));
278 fprintf (stream, _("\
279 --MD FILE write dependency information in FILE (default none)\n"));
280 fprintf (stream, _("\
282 fprintf (stream, _("\
283 -o OBJFILE name the object-file output OBJFILE (default a.out)\n"));
284 fprintf (stream, _("\
285 -R fold data section into text section\n"));
286 fprintf (stream, _("\
287 --statistics print various measured statistics from execution\n"));
288 fprintf (stream, _("\
289 --strip-local-absolute strip local absolute symbols\n"));
290 fprintf (stream, _("\
291 --traditional-format Use same format as native assembler when possible\n"));
292 fprintf (stream, _("\
293 --version print assembler version number and exit\n"));
294 fprintf (stream, _("\
295 -W --no-warn suppress warnings\n"));
296 fprintf (stream, _("\
297 --warn don't suppress warnings\n"));
298 fprintf (stream, _("\
299 --fatal-warnings treat warnings as errors\n"));
300 fprintf (stream, _("\
301 --itbl INSTTBL extend instruction set to include instructions\n\
302 matching the specifications defined in file INSTTBL\n"));
303 fprintf (stream, _("\
305 fprintf (stream, _("\
307 fprintf (stream, _("\
308 -Z generate object file even after errors\n"));
309 fprintf (stream, _("\
310 --listing-lhs-width set the width in words of the output data column of\n\
312 fprintf (stream, _("\
313 --listing-lhs-width2 set the width in words of the continuation lines\n\
314 of the output data column; ignored if smaller than\n\
315 the width of the first line\n"));
316 fprintf (stream, _("\
317 --listing-rhs-width set the max width in characters of the lines from\n\
318 the source file\n"));
319 fprintf (stream, _("\
320 --listing-cont-lines set the maximum number of continuation lines used\n\
321 for the output data column of the listing\n"));
323 md_show_usage (stream);
325 fputc ('\n', stream);
326 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
330 * Since it is easy to do here we interpret the special arg "-"
331 * to mean "use stdin" and we set that argv[] pointing to "".
332 * After we have munged argv[], the only things left are source file
333 * name(s) and ""(s) denoting stdin. These file names are used
334 * (perhaps more than once) later.
336 * check for new machine-dep cmdline options in
337 * md_parse_option definitions in config/tc-*.c
341 parse_args (pargc, pargv)
345 int old_argc, new_argc;
346 char **old_argv, **new_argv;
348 /* Starting the short option string with '-' is for programs that
349 expect options and other ARGV-elements in any order and that care about
350 the ordering of the two. We describe each non-option ARGV-element
351 as if it were the argument of an option with character code 1. */
354 extern CONST char *md_shortopts;
355 static const char std_shortopts[] =
358 #ifndef WORKING_DOT_WORD
359 /* -K is not meaningful if .word is not being hacked. */
362 'L', 'M', 'R', 'W', 'Z', 'f', 'a', ':', ':', 'D', 'I', ':', 'o', ':',
364 /* -v takes an argument on VMS, so we don't make it a generic
369 /* New option for extending instruction set (see also --itbl below) */
373 struct option *longopts;
374 extern struct option md_longopts[];
375 extern size_t md_longopts_size;
376 static const struct option std_longopts[] = {
377 #define OPTION_HELP (OPTION_STD_BASE)
378 {"help", no_argument, NULL, OPTION_HELP},
379 {"keep-locals", no_argument, NULL, 'L'},
380 {"mri", no_argument, NULL, 'M'},
381 #define OPTION_NOCPP (OPTION_STD_BASE + 1)
382 {"nocpp", no_argument, NULL, OPTION_NOCPP},
383 #define OPTION_STATISTICS (OPTION_STD_BASE + 2)
384 {"statistics", no_argument, NULL, OPTION_STATISTICS},
385 #define OPTION_VERSION (OPTION_STD_BASE + 3)
386 {"version", no_argument, NULL, OPTION_VERSION},
387 #define OPTION_DUMPCONFIG (OPTION_STD_BASE + 4)
388 {"dump-config", no_argument, NULL, OPTION_DUMPCONFIG},
389 #define OPTION_VERBOSE (OPTION_STD_BASE + 5)
390 {"verbose", no_argument, NULL, OPTION_VERBOSE},
391 #define OPTION_EMULATION (OPTION_STD_BASE + 6)
392 {"emulation", required_argument, NULL, OPTION_EMULATION},
393 #define OPTION_DEFSYM (OPTION_STD_BASE + 7)
394 {"defsym", required_argument, NULL, OPTION_DEFSYM},
395 #define OPTION_INSTTBL (OPTION_STD_BASE + 8)
396 /* New option for extending instruction set (see also -t above).
397 The "-t file" or "--itbl file" option extends the basic set of
398 valid instructions by reading "file", a text file containing a
399 list of instruction formats. The additional opcodes and their
400 formats are added to the built-in set of instructions, and
401 mnemonics for new registers may also be defined. */
402 {"itbl", required_argument, NULL, OPTION_INSTTBL},
403 #define OPTION_LISTING_LHS_WIDTH (OPTION_STD_BASE + 9)
404 {"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH},
405 #define OPTION_LISTING_LHS_WIDTH2 (OPTION_STD_BASE + 10)
406 {"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2},
407 #define OPTION_LISTING_RHS_WIDTH (OPTION_STD_BASE + 11)
408 {"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH},
409 #define OPTION_LISTING_CONT_LINES (OPTION_STD_BASE + 12)
410 {"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES},
411 #define OPTION_DEPFILE (OPTION_STD_BASE + 13)
412 {"MD", required_argument, NULL, OPTION_DEPFILE},
413 #define OPTION_GSTABS (OPTION_STD_BASE + 14)
414 {"gstabs", no_argument, NULL, OPTION_GSTABS},
415 #define OPTION_STRIP_LOCAL_ABSOLUTE (OPTION_STD_BASE + 15)
416 {"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE},
417 #define OPTION_TRADITIONAL_FORMAT (OPTION_STD_BASE + 16)
418 {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
419 #define OPTION_GDWARF2 (OPTION_STD_BASE + 17)
420 {"gdwarf2", no_argument, NULL, OPTION_GDWARF2},
421 {"no-warn", no_argument, NULL, 'W'},
422 #define OPTION_WARN (OPTION_STD_BASE + 18)
423 {"warn", no_argument, NULL, OPTION_WARN},
424 #define OPTION_WARN_FATAL (OPTION_STD_BASE + 19)
425 {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
428 /* Construct the option lists from the standard list and the
429 target dependent list. */
430 shortopts = concat (std_shortopts, md_shortopts, (char *) NULL);
431 longopts = (struct option *) xmalloc (sizeof (std_longopts) + md_longopts_size);
432 memcpy (longopts, std_longopts, sizeof (std_longopts));
433 memcpy ((char *) longopts + sizeof (std_longopts),
434 md_longopts, md_longopts_size);
436 /* Make a local copy of the old argv. */
440 /* Initialize a new argv that contains no options. */
441 new_argv = (char **) xmalloc (sizeof (char *) * (old_argc + 1));
442 new_argv[0] = old_argv[0];
444 new_argv[new_argc] = NULL;
448 /* getopt_long_only is like getopt_long, but '-' as well as '--' can
449 indicate a long option. */
451 int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts,
460 /* md_parse_option should return 1 if it recognizes optc,
462 if (md_parse_option (optc, optarg) != 0)
464 /* `-v' isn't included in the general short_opts list, so check for
465 it explicity here before deciding we've gotten a bad argument. */
469 /* Telling getopt to treat -v's value as optional can result
470 in it picking up a following filename argument here. The
471 VMS code in md_parse_option can return 0 in that case,
472 but it has no way of pushing the filename argument back. */
473 if (optarg && *optarg)
474 new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
488 case 1: /* File name. */
489 if (!strcmp (optarg, "-"))
491 new_argv[new_argc++] = optarg;
492 new_argv[new_argc] = NULL;
502 case OPTION_STATISTICS:
503 flag_print_statistics = 1;
506 case OPTION_STRIP_LOCAL_ABSOLUTE:
507 flag_strip_local_absolute = 1;
510 case OPTION_TRADITIONAL_FORMAT:
511 flag_traditional_format = 1;
515 /* This output is intended to follow the GNU standards document. */
516 printf (_("GNU assembler %s\n"), VERSION);
518 Copyright 1997, 1998, 1999, 2000 Free Software Foundation, Inc.\n"));
520 This program is free software; you may redistribute it under the terms of\n\
521 the GNU General Public License. This program has absolutely no warranty.\n"));
522 printf (_("This assembler was configured for a target of `%s'.\n"),
526 case OPTION_EMULATION:
527 #ifdef USE_EMULATIONS
528 if (strcmp (optarg, this_emulation->name))
529 as_fatal (_("multiple emulation names specified"));
531 as_fatal (_("emulations not handled in this configuration"));
535 case OPTION_DUMPCONFIG:
536 fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS);
537 fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL);
538 fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU);
539 #ifdef TARGET_OBJ_FORMAT
540 fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
543 fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
551 struct defsym_list *n;
553 for (s = optarg; *s != '\0' && *s != '='; s++)
556 as_fatal (_("bad defsym; format is --defsym name=value"));
558 i = strtol (s, (char **) NULL, 0);
559 n = (struct defsym_list *) xmalloc (sizeof *n);
570 /* optarg is the name of the file containing the instruction
571 formats, opcodes, register names, etc. */
572 struct itbl_file_list *n;
576 as_warn ( _("No file name following -t option\n") );
580 n = (struct itbl_file_list *) xmalloc (sizeof *n);
581 n->next = itbl_files;
585 /* Parse the file and add the new instructions to our internal
586 table. If multiple instruction tables are specified, the
587 information from this table gets appended onto the existing
589 itbl_files->name = xstrdup (optarg);
590 if (itbl_parse (itbl_files->name) != 0)
592 fprintf (stderr, _("Failed to read instruction table %s\n"),
600 start_dependencies (optarg);
604 debug_type = DEBUG_STABS;
608 debug_type = DEBUG_DWARF2;
612 flag_signed_overflow_ok = 1;
615 #ifndef WORKING_DOT_WORD
617 flag_warn_displacement = 1;
622 flag_keep_locals = 1;
625 case OPTION_LISTING_LHS_WIDTH:
626 listing_lhs_width = atoi(optarg);
627 if (listing_lhs_width_second < listing_lhs_width)
628 listing_lhs_width_second = listing_lhs_width;
630 case OPTION_LISTING_LHS_WIDTH2:
632 int tmp = atoi(optarg);
633 if (tmp > listing_lhs_width)
634 listing_lhs_width_second = tmp;
637 case OPTION_LISTING_RHS_WIDTH:
638 listing_rhs_width = atoi(optarg);
640 case OPTION_LISTING_CONT_LINES:
641 listing_lhs_cont_lines = atoi(optarg);
652 flag_readonly_data_in_text = 1;
656 flag_no_warnings = 1;
660 flag_no_warnings = 0;
661 flag_fatal_warnings = 0;
664 case OPTION_WARN_FATAL:
665 flag_no_warnings = 0;
666 flag_fatal_warnings = 1;
670 flag_always_generate_output = 1;
676 if (md_parse_option (optc, optarg) != 0)
684 listing |= LISTING_NOCOND;
687 listing |= LISTING_NODEBUG;
690 listing |= LISTING_HLL;
693 listing |= LISTING_LISTING;
696 listing |= LISTING_MACEXP;
699 listing |= LISTING_NOFORM;
702 listing |= LISTING_SYMBOLS;
705 listing_filename = xstrdup (optarg + 1);
706 optarg += strlen (listing_filename);
709 as_fatal (_("invalid listing option `%c'"), *optarg);
716 listing = LISTING_DEFAULT;
720 /* DEBUG is implemented: it debugs different */
721 /* things from other people's assemblers. */
726 flag_no_comments = 1;
730 { /* Include file directory */
731 char *temp = xstrdup (optarg);
732 add_include_dir (temp);
737 out_file_name = xstrdup (optarg);
744 /* -X means treat warnings as errors */
756 static long start_time;
767 start_time = get_run_time ();
769 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
770 setlocale (LC_MESSAGES, "");
772 bindtextdomain (PACKAGE, LOCALEDIR);
773 textdomain (PACKAGE);
778 extern long _bfd_chunksize;
784 #ifdef HOST_SPECIAL_INIT
785 HOST_SPECIAL_INIT (argc, argv);
789 xmalloc_set_program_name (myname);
791 START_PROGRESS (myname, 0);
793 #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
794 #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
797 out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
802 bfd_set_error_program_name (myname);
805 #ifdef USE_EMULATIONS
806 select_emulation_mode (argc, argv);
813 parse_args (&argc, &argv);
815 input_scrub_begin ();
818 if (flag_print_statistics)
819 xatexit (dump_statistics);
824 macro_strip_at = flag_mri;
827 /* For compatibility with the AMD 29K family macro assembler
833 macro_init (macro_alternate, flag_mri, macro_strip_at, macro_expr);
838 output_file_create (out_file_name);
839 assert (stdoutput != 0);
842 #ifdef tc_init_after_args
843 tc_init_after_args ();
848 /* Now that we have fully initialized, and have created the output
849 file, define any symbols requested by --defsym command line
851 while (defsyms != NULL)
854 struct defsym_list *next;
856 sym = symbol_new (defsyms->name, absolute_section, defsyms->value,
858 symbol_table_insert (sym);
859 next = defsyms->next;
866 perform_an_assembly_pass (argc, argv); /* Assemble it. */
868 cond_finish_check (-1);
874 if (seen_at_least_1_file ()
875 && (flag_always_generate_output || had_errors () == 0))
880 #if defined (BFD_ASSEMBLER) || !defined (BFD)
881 /* This used to be done at the start of write_object_file in
882 write.c, but that caused problems when doing listings when
883 keep_it was zero. This could probably be moved above md_end, but
884 I didn't want to risk the change. */
889 write_object_file ();
892 listing_print (listing_filename);
895 #ifndef OBJ_VMS /* does its own file handling */
896 #ifndef BFD_ASSEMBLER
899 output_file_close (out_file_name);
902 if (flag_fatal_warnings && had_warnings() > 0 && had_errors () == 0)
903 as_bad (_("%d warnings, treating warnings as errors"), had_warnings());
905 if (had_errors () > 0 && ! flag_always_generate_output)
909 unlink (out_file_name);
913 END_PROGRESS (myname);
915 /* Use xexit instead of return, because under VMS environments they
916 may not place the same interpretation on the value given. */
917 if (had_errors () > 0)
918 xexit (EXIT_FAILURE);
920 /* Only generate dependency file if assembler was successful. */
921 print_dependencies ();
923 xexit (EXIT_SUCCESS);
930 char *lim = (char *) sbrk (0);
932 long run_time = get_run_time () - start_time;
934 fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"),
935 myname, run_time / 1000000, run_time % 1000000);
937 fprintf (stderr, _("%s: data size %ld\n"),
938 myname, (long) (lim - (char *) &environ));
941 subsegs_print_statistics (stderr);
942 write_print_statistics (stderr);
943 symbol_print_statistics (stderr);
944 read_print_statistics (stderr);
946 #ifdef tc_print_statistics
947 tc_print_statistics (stderr);
949 #ifdef obj_print_statistics
950 obj_print_statistics (stderr);
955 /* perform_an_assembly_pass()
957 * Here to attempt 1 pass over each input file.
958 * We scan argv[*] looking for filenames or exactly "" which is
959 * shorthand for stdin. Any argv that is NULL is not a file-name.
960 * We set need_pass_2 TRUE if, after this, we still have unresolved
961 * expressions of the form (unknown value)+-(unknown value).
963 * Note the un*x semantics: there is only 1 logical input file, but it
964 * may be a catenation of many 'physical' input files.
967 perform_an_assembly_pass (argc, argv)
978 #ifndef BFD_ASSEMBLER
982 for (i = SEG_E0; i < SEG_UNKNOWN; i++)
983 segment_info[i].fix_root = 0;
985 /* Create the three fixed ones */
990 seg = subseg_new (".wtext", 0);
992 seg = subseg_new (".text", 0);
994 assert (seg == SEG_E0);
995 seg = subseg_new (".data", 0);
996 assert (seg == SEG_E1);
997 seg = subseg_new (".bss", 0);
998 assert (seg == SEG_E2);
1000 create_target_segments ();
1004 #else /* not MANY_SEGMENTS */
1005 text_fix_root = NULL;
1006 data_fix_root = NULL;
1007 bss_fix_root = NULL;
1008 #endif /* not MANY_SEGMENTS */
1009 #else /* BFD_ASSEMBLER */
1010 /* Create the standard sections, and those the assembler uses
1012 text_section = subseg_new (TEXT_SECTION_NAME, 0);
1013 data_section = subseg_new (DATA_SECTION_NAME, 0);
1014 bss_section = subseg_new (BSS_SECTION_NAME, 0);
1015 /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
1016 to have relocs, otherwise we don't find out in time. */
1017 applicable = bfd_applicable_section_flags (stdoutput);
1018 bfd_set_section_flags (stdoutput, text_section,
1019 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1020 | SEC_CODE | SEC_READONLY));
1021 bfd_set_section_flags (stdoutput, data_section,
1022 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1024 bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC);
1025 seg_info (bss_section)->bss = 1;
1026 subseg_new (BFD_ABS_SECTION_NAME, 0);
1027 subseg_new (BFD_UND_SECTION_NAME, 0);
1028 reg_section = subseg_new ("*GAS `reg' section*", 0);
1029 expr_section = subseg_new ("*GAS `expr' section*", 0);
1031 #endif /* BFD_ASSEMBLER */
1033 subseg_set (text_section, 0);
1035 /* This may add symbol table entries, which requires having an open BFD,
1036 and sections already created, in BFD_ASSEMBLER mode. */
1043 argv++; /* skip argv[0] */
1044 argc--; /* skip argv[0] */
1048 { /* Is it a file-name argument? */
1051 /* argv->"" if stdin desired, else->filename */
1052 read_a_source_file (*argv);
1054 argv++; /* completed that argv */
1057 read_a_source_file ("");
1058 } /* perform_an_assembly_pass() */
1060 /* The interface between the macro code and gas expression handling. */
1063 macro_expr (emsg, idx, in, val)
1074 hold = input_line_pointer;
1075 input_line_pointer = in->ptr + idx;
1077 idx = input_line_pointer - in->ptr;
1078 input_line_pointer = hold;
1080 if (ex.X_op != O_constant)
1081 as_bad ("%s", emsg);
1083 *val = (int) ex.X_add_number;