Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* as.c - GAS main program. |
f7e42eb4 | 2 | Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
5256a5b0 | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
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 | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
11 | any later version. |
12 | ||
ec2655a6 NC |
13 | GAS is distributed in the hope that it will be useful, but WITHOUT |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
16 | License for more details. | |
252b5132 RH |
17 | |
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 | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 | 22 | |
76b0a8c0 | 23 | /* Main program for AS; a 32-bit assembler of GNU. |
33948635 NC |
24 | Understands command arguments. |
25 | Has a few routines that don't fit in other modules because they | |
26 | are shared. | |
27 | ||
28 | bugs | |
29 | ||
30 | : initialisers | |
31 | Since no-one else says they will support them in future: I | |
32 | don't support them now. */ | |
252b5132 | 33 | |
252b5132 RH |
34 | #define COMMON |
35 | ||
36 | #include "as.h" | |
37 | #include "subsegs.h" | |
38 | #include "output-file.h" | |
39 | #include "sb.h" | |
40 | #include "macro.h" | |
bccba5f0 | 41 | #include "dwarf2dbg.h" |
54cfded0 | 42 | #include "dw2gencfi.h" |
b95d15c6 | 43 | #include "bfdver.h" |
b95d15c6 | 44 | |
84be4d71 ILT |
45 | #ifdef HAVE_ITBL_CPU |
46 | #include "itbl-ops.h" | |
47 | #else | |
252b5132 RH |
48 | #define itbl_init() |
49 | #endif | |
50 | ||
51 | #ifdef HAVE_SBRK | |
52 | #ifdef NEED_DECLARATION_SBRK | |
5a49b8ac | 53 | extern void *sbrk (); |
252b5132 RH |
54 | #endif |
55 | #endif | |
56 | ||
9cc92a36 NC |
57 | #ifdef USING_CGEN |
58 | /* Perform any cgen specific initialisation for gas. */ | |
33948635 | 59 | extern void gas_cgen_begin (void); |
9cc92a36 | 60 | #endif |
252b5132 | 61 | |
33948635 NC |
62 | /* We build a list of defsyms as we read the options, and then define |
63 | them after we have initialized everything. */ | |
64 | struct defsym_list | |
65 | { | |
66 | struct defsym_list *next; | |
67 | char *name; | |
68 | valueT value; | |
69 | }; | |
70 | ||
71 | ||
76b0a8c0 KH |
72 | /* True if a listing is wanted. */ |
73 | int listing; | |
252b5132 | 74 | |
252b5132 | 75 | /* Type of debugging to generate. */ |
4dc7ead9 | 76 | enum debug_info_type debug_type = DEBUG_UNSPECIFIED; |
05da4302 | 77 | int use_gnu_debug_info_extensions = 0; |
252b5132 | 78 | |
329e276d NC |
79 | #ifndef MD_DEBUG_FORMAT_SELECTOR |
80 | #define MD_DEBUG_FORMAT_SELECTOR NULL | |
81 | #endif | |
82 | static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR; | |
83 | ||
252b5132 | 84 | /* Maximum level of macro nesting. */ |
252b5132 RH |
85 | int max_macro_nest = 100; |
86 | ||
76b0a8c0 | 87 | /* argv[0] */ |
87c245cc | 88 | static char * myname; |
252b5132 RH |
89 | |
90 | /* The default obstack chunk size. If we set this to zero, the | |
91 | obstack code will use whatever will fit in a 4096 byte block. */ | |
92 | int chunksize = 0; | |
93 | ||
94 | /* To monitor memory allocation more effectively, make this non-zero. | |
95 | Then the chunk sizes for gas and bfd will be reduced. */ | |
96 | int debug_memory = 0; | |
97 | ||
54cfded0 AM |
98 | /* Enable verbose mode. */ |
99 | int verbose = 0; | |
100 | ||
58e8191c SA |
101 | /* Keep the output file. */ |
102 | int keep_it = 0; | |
103 | ||
33948635 NC |
104 | segT reg_section; |
105 | segT expr_section; | |
106 | segT text_section; | |
107 | segT data_section; | |
108 | segT bss_section; | |
252b5132 | 109 | |
33948635 NC |
110 | /* Name of listing file. */ |
111 | static char *listing_filename = NULL; | |
252b5132 RH |
112 | |
113 | static struct defsym_list *defsyms; | |
114 | ||
732f54cd JB |
115 | #ifdef HAVE_ITBL_CPU |
116 | /* Keep a record of the itbl files we read in. */ | |
117 | struct itbl_file_list | |
118 | { | |
119 | struct itbl_file_list *next; | |
120 | char *name; | |
121 | }; | |
33948635 | 122 | static struct itbl_file_list *itbl_files; |
732f54cd | 123 | #endif |
252b5132 | 124 | |
33948635 | 125 | static long start_time; |
252b5132 | 126 | |
caa32fe5 NC |
127 | static int flag_macro_alternate; |
128 | ||
252b5132 | 129 | \f |
252b5132 RH |
130 | #ifdef USE_EMULATIONS |
131 | #define EMULATION_ENVIRON "AS_EMULATION" | |
132 | ||
133 | extern struct emulation mipsbelf, mipslelf, mipself; | |
134 | extern struct emulation mipsbecoff, mipslecoff, mipsecoff; | |
4c63da97 | 135 | extern struct emulation i386coff, i386elf, i386aout; |
3bcbcc3d | 136 | extern struct emulation crisaout, criself; |
252b5132 RH |
137 | |
138 | static struct emulation *const emulations[] = { EMULATIONS }; | |
139 | static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]); | |
140 | ||
252b5132 | 141 | static void |
33948635 | 142 | select_emulation_mode (int argc, char **argv) |
252b5132 RH |
143 | { |
144 | int i; | |
145 | char *p, *em = 0; | |
146 | ||
147 | for (i = 1; i < argc; i++) | |
148 | if (!strncmp ("--em", argv[i], 4)) | |
149 | break; | |
150 | ||
151 | if (i == argc) | |
152 | goto do_default; | |
153 | ||
154 | p = strchr (argv[i], '='); | |
155 | if (p) | |
156 | p++; | |
157 | else | |
76b0a8c0 | 158 | p = argv[i + 1]; |
252b5132 RH |
159 | |
160 | if (!p || !*p) | |
161 | as_fatal (_("missing emulation mode name")); | |
162 | em = p; | |
163 | ||
164 | do_default: | |
165 | if (em == 0) | |
166 | em = getenv (EMULATION_ENVIRON); | |
167 | if (em == 0) | |
168 | em = DEFAULT_EMULATION; | |
169 | ||
170 | if (em) | |
171 | { | |
172 | for (i = 0; i < n_emulations; i++) | |
173 | if (!strcmp (emulations[i]->name, em)) | |
174 | break; | |
175 | if (i == n_emulations) | |
176 | as_fatal (_("unrecognized emulation name `%s'"), em); | |
177 | this_emulation = emulations[i]; | |
178 | } | |
179 | else | |
180 | this_emulation = emulations[0]; | |
181 | ||
182 | this_emulation->init (); | |
183 | } | |
184 | ||
185 | const char * | |
33948635 | 186 | default_emul_bfd_name (void) |
252b5132 RH |
187 | { |
188 | abort (); | |
189 | return NULL; | |
190 | } | |
191 | ||
192 | void | |
33948635 | 193 | common_emul_init (void) |
252b5132 RH |
194 | { |
195 | this_format = this_emulation->format; | |
196 | ||
197 | if (this_emulation->leading_underscore == 2) | |
198 | this_emulation->leading_underscore = this_format->dfl_leading_underscore; | |
199 | ||
200 | if (this_emulation->default_endian != 2) | |
201 | target_big_endian = this_emulation->default_endian; | |
202 | ||
203 | if (this_emulation->fake_label_name == 0) | |
204 | { | |
205 | if (this_emulation->leading_underscore) | |
206 | this_emulation->fake_label_name = "L0\001"; | |
207 | else | |
208 | /* What other parameters should we test? */ | |
209 | this_emulation->fake_label_name = ".L0\001"; | |
210 | } | |
211 | } | |
212 | #endif | |
213 | ||
4c63da97 | 214 | void |
33948635 | 215 | print_version_id (void) |
4c63da97 AM |
216 | { |
217 | static int printed; | |
33948635 | 218 | |
4c63da97 AM |
219 | if (printed) |
220 | return; | |
221 | printed = 1; | |
222 | ||
7be1c489 | 223 | fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"), |
403487ec | 224 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
4c63da97 AM |
225 | } |
226 | ||
227 | static void | |
33948635 | 228 | show_usage (FILE * stream) |
4c63da97 AM |
229 | { |
230 | fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname); | |
231 | ||
232 | fprintf (stream, _("\ | |
233 | Options:\n\ | |
234 | -a[sub-option...] turn on listings\n\ | |
235 | Sub-options [default hls]:\n\ | |
236 | c omit false conditionals\n\ | |
237 | d omit debugging directives\n\ | |
83f10cb2 | 238 | g include general info\n\ |
4c63da97 AM |
239 | h include high-level source\n\ |
240 | l include assembly\n\ | |
241 | m include macro expansions\n\ | |
242 | n omit forms processing\n\ | |
243 | s include symbols\n\ | |
4c63da97 AM |
244 | =FILE list to FILE (must be last sub-option)\n")); |
245 | ||
caa32fe5 NC |
246 | fprintf (stream, _("\ |
247 | --alternate initially turn on alternate macro syntax\n")); | |
955974c6 | 248 | #ifdef HAVE_ZLIB_H |
4c63da97 | 249 | fprintf (stream, _("\ |
700c4060 CC |
250 | --compress-debug-sections\n\ |
251 | compress DWARF debug sections using zlib\n")); | |
252 | fprintf (stream, _("\ | |
253 | --nocompress-debug-sections\n\ | |
254 | don't compress DWARF debug sections\n")); | |
955974c6 | 255 | #endif /* HAVE_ZLIB_H */ |
700c4060 | 256 | fprintf (stream, _("\ |
4c63da97 AM |
257 | -D produce assembler debugging messages\n")); |
258 | fprintf (stream, _("\ | |
700c4060 CC |
259 | --debug-prefix-map OLD=NEW\n\ |
260 | map OLD to NEW in debug information\n")); | |
3d6b762c | 261 | fprintf (stream, _("\ |
4c63da97 AM |
262 | --defsym SYM=VAL define symbol SYM to given value\n")); |
263 | #ifdef USE_EMULATIONS | |
264 | { | |
265 | int i; | |
266 | char *def_em; | |
267 | ||
268 | fprintf (stream, "\ | |
269 | --em=["); | |
76b0a8c0 | 270 | for (i = 0; i < n_emulations - 1; i++) |
4c63da97 AM |
271 | fprintf (stream, "%s | ", emulations[i]->name); |
272 | fprintf (stream, "%s]\n", emulations[i]->name); | |
273 | ||
274 | def_em = getenv (EMULATION_ENVIRON); | |
76b0a8c0 | 275 | if (!def_em) |
4c63da97 AM |
276 | def_em = DEFAULT_EMULATION; |
277 | fprintf (stream, _("\ | |
278 | emulate output (default %s)\n"), def_em); | |
279 | } | |
68d55fe3 | 280 | #endif |
7be1c489 | 281 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
282 | fprintf (stream, _("\ |
283 | --execstack require executable stack for this object\n")); | |
284 | fprintf (stream, _("\ | |
285 | --noexecstack don't require executable stack for this object\n")); | |
4c63da97 AM |
286 | #endif |
287 | fprintf (stream, _("\ | |
288 | -f skip whitespace and comment preprocessing\n")); | |
289 | fprintf (stream, _("\ | |
329e276d NC |
290 | -g --gen-debug generate debugging information\n")); |
291 | fprintf (stream, _("\ | |
292 | --gstabs generate STABS debugging information\n")); | |
4c63da97 | 293 | fprintf (stream, _("\ |
329e276d | 294 | --gstabs+ generate STABS debug info with GNU extensions\n")); |
05da4302 | 295 | fprintf (stream, _("\ |
329e276d | 296 | --gdwarf-2 generate DWARF2 debugging information\n")); |
4c63da97 | 297 | fprintf (stream, _("\ |
4bdd3565 NC |
298 | --hash-size=<value> set the hash table size close to <value>\n")); |
299 | fprintf (stream, _("\ | |
4c63da97 AM |
300 | --help show this message and exit\n")); |
301 | fprintf (stream, _("\ | |
ea20a7da CC |
302 | --target-help show target specific options\n")); |
303 | fprintf (stream, _("\ | |
4c63da97 AM |
304 | -I DIR add DIR to search list for .include directives\n")); |
305 | fprintf (stream, _("\ | |
306 | -J don't warn about signed overflow\n")); | |
307 | fprintf (stream, _("\ | |
308 | -K warn when differences altered for long displacements\n")); | |
309 | fprintf (stream, _("\ | |
310 | -L,--keep-locals keep local symbols (e.g. starting with `L')\n")); | |
311 | fprintf (stream, _("\ | |
312 | -M,--mri assemble in MRI compatibility mode\n")); | |
313 | fprintf (stream, _("\ | |
314 | --MD FILE write dependency information in FILE (default none)\n")); | |
315 | fprintf (stream, _("\ | |
316 | -nocpp ignored\n")); | |
317 | fprintf (stream, _("\ | |
318 | -o OBJFILE name the object-file output OBJFILE (default a.out)\n")); | |
319 | fprintf (stream, _("\ | |
320 | -R fold data section into text section\n")); | |
321 | fprintf (stream, _("\ | |
4bdd3565 NC |
322 | --reduce-memory-overheads \n\ |
323 | prefer smaller memory use at the cost of longer\n\ | |
324 | assembly times\n")); | |
325 | fprintf (stream, _("\ | |
4c63da97 AM |
326 | --statistics print various measured statistics from execution\n")); |
327 | fprintf (stream, _("\ | |
328 | --strip-local-absolute strip local absolute symbols\n")); | |
329 | fprintf (stream, _("\ | |
330 | --traditional-format Use same format as native assembler when possible\n")); | |
331 | fprintf (stream, _("\ | |
332 | --version print assembler version number and exit\n")); | |
333 | fprintf (stream, _("\ | |
334 | -W --no-warn suppress warnings\n")); | |
335 | fprintf (stream, _("\ | |
336 | --warn don't suppress warnings\n")); | |
337 | fprintf (stream, _("\ | |
338 | --fatal-warnings treat warnings as errors\n")); | |
732f54cd | 339 | #ifdef HAVE_ITBL_CPU |
4c63da97 AM |
340 | fprintf (stream, _("\ |
341 | --itbl INSTTBL extend instruction set to include instructions\n\ | |
342 | matching the specifications defined in file INSTTBL\n")); | |
732f54cd | 343 | #endif |
4c63da97 AM |
344 | fprintf (stream, _("\ |
345 | -w ignored\n")); | |
346 | fprintf (stream, _("\ | |
347 | -X ignored\n")); | |
348 | fprintf (stream, _("\ | |
349 | -Z generate object file even after errors\n")); | |
350 | fprintf (stream, _("\ | |
351 | --listing-lhs-width set the width in words of the output data column of\n\ | |
352 | the listing\n")); | |
353 | fprintf (stream, _("\ | |
354 | --listing-lhs-width2 set the width in words of the continuation lines\n\ | |
355 | of the output data column; ignored if smaller than\n\ | |
356 | the width of the first line\n")); | |
357 | fprintf (stream, _("\ | |
358 | --listing-rhs-width set the max width in characters of the lines from\n\ | |
359 | the source file\n")); | |
360 | fprintf (stream, _("\ | |
361 | --listing-cont-lines set the maximum number of continuation lines used\n\ | |
362 | for the output data column of the listing\n")); | |
a55ff675 MM |
363 | fprintf (stream, _("\ |
364 | @FILE read options from FILE\n")); | |
4c63da97 AM |
365 | |
366 | md_show_usage (stream); | |
367 | ||
c20f4f8c | 368 | fputc ('\n', stream); |
92f01d61 JM |
369 | |
370 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
371 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); | |
4c63da97 AM |
372 | } |
373 | ||
76b0a8c0 KH |
374 | /* Since it is easy to do here we interpret the special arg "-" |
375 | to mean "use stdin" and we set that argv[] pointing to "". | |
376 | After we have munged argv[], the only things left are source file | |
377 | name(s) and ""(s) denoting stdin. These file names are used | |
378 | (perhaps more than once) later. | |
379 | ||
380 | check for new machine-dep cmdline options in | |
381 | md_parse_option definitions in config/tc-*.c. */ | |
252b5132 RH |
382 | |
383 | static void | |
33948635 | 384 | parse_args (int * pargc, char *** pargv) |
252b5132 | 385 | { |
33948635 NC |
386 | int old_argc; |
387 | int new_argc; | |
388 | char ** old_argv; | |
389 | char ** new_argv; | |
252b5132 RH |
390 | /* Starting the short option string with '-' is for programs that |
391 | expect options and other ARGV-elements in any order and that care about | |
392 | the ordering of the two. We describe each non-option ARGV-element | |
393 | as if it were the argument of an option with character code 1. */ | |
252b5132 | 394 | char *shortopts; |
5a38dc70 | 395 | extern const char *md_shortopts; |
33948635 NC |
396 | static const char std_shortopts[] = |
397 | { | |
30a2b4ef | 398 | '-', 'J', |
252b5132 | 399 | #ifndef WORKING_DOT_WORD |
30a2b4ef KH |
400 | /* -K is not meaningful if .word is not being hacked. */ |
401 | 'K', | |
252b5132 | 402 | #endif |
8f94ae4d | 403 | 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':', |
252b5132 | 404 | #ifndef VMS |
30a2b4ef KH |
405 | /* -v takes an argument on VMS, so we don't make it a generic |
406 | option. */ | |
407 | 'v', | |
252b5132 | 408 | #endif |
30a2b4ef | 409 | 'w', 'X', |
732f54cd | 410 | #ifdef HAVE_ITBL_CPU |
33948635 | 411 | /* New option for extending instruction set (see also --itbl below). */ |
30a2b4ef | 412 | 't', ':', |
732f54cd | 413 | #endif |
30a2b4ef KH |
414 | '\0' |
415 | }; | |
252b5132 RH |
416 | struct option *longopts; |
417 | extern struct option md_longopts[]; | |
418 | extern size_t md_longopts_size; | |
33948635 NC |
419 | /* Codes used for the long options with no short synonyms. */ |
420 | enum option_values | |
421 | { | |
422 | OPTION_HELP = OPTION_STD_BASE, | |
423 | OPTION_NOCPP, | |
424 | OPTION_STATISTICS, | |
425 | OPTION_VERSION, | |
426 | OPTION_DUMPCONFIG, | |
427 | OPTION_VERBOSE, | |
428 | OPTION_EMULATION, | |
3d6b762c | 429 | OPTION_DEBUG_PREFIX_MAP, |
33948635 | 430 | OPTION_DEFSYM, |
33948635 NC |
431 | OPTION_LISTING_LHS_WIDTH, |
432 | OPTION_LISTING_LHS_WIDTH2, | |
433 | OPTION_LISTING_RHS_WIDTH, | |
434 | OPTION_LISTING_CONT_LINES, | |
435 | OPTION_DEPFILE, | |
436 | OPTION_GSTABS, | |
05da4302 | 437 | OPTION_GSTABS_PLUS, |
329e276d | 438 | OPTION_GDWARF2, |
33948635 NC |
439 | OPTION_STRIP_LOCAL_ABSOLUTE, |
440 | OPTION_TRADITIONAL_FORMAT, | |
33948635 NC |
441 | OPTION_WARN, |
442 | OPTION_TARGET_HELP, | |
443 | OPTION_EXECSTACK, | |
444 | OPTION_NOEXECSTACK, | |
caa32fe5 | 445 | OPTION_ALTERNATE, |
5a14ab23 | 446 | OPTION_AL, |
4bdd3565 NC |
447 | OPTION_HASH_TABLE_SIZE, |
448 | OPTION_REDUCE_MEMORY_OVERHEADS, | |
0acf065b CC |
449 | OPTION_WARN_FATAL, |
450 | OPTION_COMPRESS_DEBUG, | |
451 | OPTION_NOCOMPRESS_DEBUG | |
329e276d NC |
452 | /* When you add options here, check that they do |
453 | not collide with OPTION_MD_BASE. See as.h. */ | |
33948635 NC |
454 | }; |
455 | ||
456 | static const struct option std_longopts[] = | |
457 | { | |
329e276d NC |
458 | /* Note: commas are placed at the start of the line rather than |
459 | the end of the preceeding line so that it is simpler to | |
460 | selectively add and remove lines from this list. */ | |
461 | {"alternate", no_argument, NULL, OPTION_ALTERNATE} | |
fb767913 NC |
462 | /* The entry for "a" is here to prevent getopt_long_only() from |
463 | considering that -a is an abbreviation for --alternate. This is | |
464 | necessary because -a=<FILE> is a valid switch but getopt would | |
465 | normally reject it since --alternate does not take an argument. */ | |
466 | ,{"a", optional_argument, NULL, 'a'} | |
5a14ab23 L |
467 | /* Handle -al=<FILE>. */ |
468 | ,{"al", optional_argument, NULL, OPTION_AL} | |
0acf065b CC |
469 | ,{"compress-debug-sections", no_argument, NULL, OPTION_COMPRESS_DEBUG} |
470 | ,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG} | |
3d6b762c | 471 | ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP} |
329e276d NC |
472 | ,{"defsym", required_argument, NULL, OPTION_DEFSYM} |
473 | ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG} | |
474 | ,{"emulation", required_argument, NULL, OPTION_EMULATION} | |
7be1c489 | 475 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
329e276d NC |
476 | ,{"execstack", no_argument, NULL, OPTION_EXECSTACK} |
477 | ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK} | |
478 | #endif | |
479 | ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL} | |
480 | ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2} | |
481 | /* GCC uses --gdwarf-2 but GAS uses to use --gdwarf2, | |
482 | so we keep it here for backwards compatibility. */ | |
483 | ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2} | |
484 | ,{"gen-debug", no_argument, NULL, 'g'} | |
485 | ,{"gstabs", no_argument, NULL, OPTION_GSTABS} | |
486 | ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS} | |
4bdd3565 | 487 | ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE} |
329e276d | 488 | ,{"help", no_argument, NULL, OPTION_HELP} |
732f54cd | 489 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
490 | /* New option for extending instruction set (see also -t above). |
491 | The "-t file" or "--itbl file" option extends the basic set of | |
492 | valid instructions by reading "file", a text file containing a | |
493 | list of instruction formats. The additional opcodes and their | |
494 | formats are added to the built-in set of instructions, and | |
495 | mnemonics for new registers may also be defined. */ | |
732f54cd JB |
496 | ,{"itbl", required_argument, NULL, 't'} |
497 | #endif | |
329e276d NC |
498 | /* getopt allows abbreviations, so we do this to stop it from |
499 | treating -k as an abbreviation for --keep-locals. Some | |
500 | ports use -k to enable PIC assembly. */ | |
501 | ,{"keep-locals", no_argument, NULL, 'L'} | |
502 | ,{"keep-locals", no_argument, NULL, 'L'} | |
503 | ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH} | |
504 | ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2} | |
505 | ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH} | |
506 | ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES} | |
507 | ,{"MD", required_argument, NULL, OPTION_DEPFILE} | |
508 | ,{"mri", no_argument, NULL, 'M'} | |
509 | ,{"nocpp", no_argument, NULL, OPTION_NOCPP} | |
510 | ,{"no-warn", no_argument, NULL, 'W'} | |
4bdd3565 | 511 | ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS} |
329e276d NC |
512 | ,{"statistics", no_argument, NULL, OPTION_STATISTICS} |
513 | ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE} | |
514 | ,{"version", no_argument, NULL, OPTION_VERSION} | |
515 | ,{"verbose", no_argument, NULL, OPTION_VERBOSE} | |
516 | ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP} | |
517 | ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT} | |
518 | ,{"warn", no_argument, NULL, OPTION_WARN} | |
252b5132 RH |
519 | }; |
520 | ||
beb2de9b AC |
521 | /* Construct the option lists from the standard list and the target |
522 | dependent list. Include space for an extra NULL option and | |
76b0a8c0 | 523 | always NULL terminate. */ |
252b5132 | 524 | shortopts = concat (std_shortopts, md_shortopts, (char *) NULL); |
1e9cc1c2 NC |
525 | longopts = (struct option *) xmalloc (sizeof (std_longopts) |
526 | + md_longopts_size + sizeof (struct option)); | |
252b5132 | 527 | memcpy (longopts, std_longopts, sizeof (std_longopts)); |
33948635 NC |
528 | memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size); |
529 | memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size, | |
beb2de9b | 530 | 0, sizeof (struct option)); |
252b5132 RH |
531 | |
532 | /* Make a local copy of the old argv. */ | |
533 | old_argc = *pargc; | |
534 | old_argv = *pargv; | |
535 | ||
536 | /* Initialize a new argv that contains no options. */ | |
1e9cc1c2 | 537 | new_argv = (char **) xmalloc (sizeof (char *) * (old_argc + 1)); |
252b5132 RH |
538 | new_argv[0] = old_argv[0]; |
539 | new_argc = 1; | |
540 | new_argv[new_argc] = NULL; | |
541 | ||
542 | while (1) | |
543 | { | |
544 | /* getopt_long_only is like getopt_long, but '-' as well as '--' can | |
545 | indicate a long option. */ | |
546 | int longind; | |
547 | int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts, | |
548 | &longind); | |
549 | ||
550 | if (optc == -1) | |
551 | break; | |
552 | ||
553 | switch (optc) | |
554 | { | |
555 | default: | |
556 | /* md_parse_option should return 1 if it recognizes optc, | |
557 | 0 if not. */ | |
558 | if (md_parse_option (optc, optarg) != 0) | |
559 | break; | |
560 | /* `-v' isn't included in the general short_opts list, so check for | |
47eebc20 | 561 | it explicitly here before deciding we've gotten a bad argument. */ |
252b5132 RH |
562 | if (optc == 'v') |
563 | { | |
564 | #ifdef VMS | |
565 | /* Telling getopt to treat -v's value as optional can result | |
566 | in it picking up a following filename argument here. The | |
567 | VMS code in md_parse_option can return 0 in that case, | |
568 | but it has no way of pushing the filename argument back. */ | |
569 | if (optarg && *optarg) | |
30a2b4ef | 570 | new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL; |
252b5132 RH |
571 | else |
572 | #else | |
573 | case 'v': | |
574 | #endif | |
575 | case OPTION_VERBOSE: | |
576 | print_version_id (); | |
54cfded0 | 577 | verbose = 1; |
252b5132 RH |
578 | break; |
579 | } | |
329e276d NC |
580 | else |
581 | as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : ""); | |
76b0a8c0 | 582 | /* Fall through. */ |
252b5132 RH |
583 | |
584 | case '?': | |
585 | exit (EXIT_FAILURE); | |
586 | ||
587 | case 1: /* File name. */ | |
588 | if (!strcmp (optarg, "-")) | |
589 | optarg = ""; | |
590 | new_argv[new_argc++] = optarg; | |
591 | new_argv[new_argc] = NULL; | |
592 | break; | |
ef99799a | 593 | |
ea20a7da | 594 | case OPTION_TARGET_HELP: |
411863a4 KH |
595 | md_show_usage (stdout); |
596 | exit (EXIT_SUCCESS); | |
252b5132 RH |
597 | |
598 | case OPTION_HELP: | |
599 | show_usage (stdout); | |
600 | exit (EXIT_SUCCESS); | |
601 | ||
602 | case OPTION_NOCPP: | |
603 | break; | |
604 | ||
605 | case OPTION_STATISTICS: | |
606 | flag_print_statistics = 1; | |
607 | break; | |
608 | ||
609 | case OPTION_STRIP_LOCAL_ABSOLUTE: | |
610 | flag_strip_local_absolute = 1; | |
611 | break; | |
612 | ||
613 | case OPTION_TRADITIONAL_FORMAT: | |
614 | flag_traditional_format = 1; | |
615 | break; | |
616 | ||
617 | case OPTION_VERSION: | |
618 | /* This output is intended to follow the GNU standards document. */ | |
6c19f338 | 619 | printf (_("GNU assembler %s\n"), BFD_VERSION_STRING); |
5256a5b0 | 620 | printf (_("Copyright 2010 Free Software Foundation, Inc.\n")); |
252b5132 RH |
621 | printf (_("\ |
622 | This program is free software; you may redistribute it under the terms of\n\ | |
ec2655a6 NC |
623 | the GNU General Public License version 3 or later.\n\ |
624 | This program has absolutely no warranty.\n")); | |
252b5132 RH |
625 | printf (_("This assembler was configured for a target of `%s'.\n"), |
626 | TARGET_ALIAS); | |
627 | exit (EXIT_SUCCESS); | |
628 | ||
629 | case OPTION_EMULATION: | |
630 | #ifdef USE_EMULATIONS | |
631 | if (strcmp (optarg, this_emulation->name)) | |
632 | as_fatal (_("multiple emulation names specified")); | |
633 | #else | |
634 | as_fatal (_("emulations not handled in this configuration")); | |
635 | #endif | |
636 | break; | |
637 | ||
638 | case OPTION_DUMPCONFIG: | |
639 | fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS); | |
640 | fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL); | |
641 | fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU); | |
642 | #ifdef TARGET_OBJ_FORMAT | |
643 | fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT); | |
644 | #endif | |
645 | #ifdef TARGET_FORMAT | |
646 | fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT); | |
647 | #endif | |
648 | exit (EXIT_SUCCESS); | |
649 | ||
0acf065b | 650 | case OPTION_COMPRESS_DEBUG: |
955974c6 | 651 | #ifdef HAVE_ZLIB_H |
0acf065b | 652 | flag_compress_debug = 1; |
955974c6 CC |
653 | #else |
654 | as_warn (_("cannot compress debug sections (zlib not installed)")); | |
655 | #endif /* HAVE_ZLIB_H */ | |
0acf065b CC |
656 | break; |
657 | ||
658 | case OPTION_NOCOMPRESS_DEBUG: | |
659 | flag_compress_debug = 0; | |
660 | break; | |
661 | ||
3d6b762c JM |
662 | case OPTION_DEBUG_PREFIX_MAP: |
663 | add_debug_prefix_map (optarg); | |
664 | break; | |
665 | ||
252b5132 RH |
666 | case OPTION_DEFSYM: |
667 | { | |
668 | char *s; | |
a38cf1db | 669 | valueT i; |
252b5132 RH |
670 | struct defsym_list *n; |
671 | ||
672 | for (s = optarg; *s != '\0' && *s != '='; s++) | |
673 | ; | |
674 | if (*s == '\0') | |
675 | as_fatal (_("bad defsym; format is --defsym name=value")); | |
676 | *s++ = '\0'; | |
a38cf1db | 677 | i = bfd_scan_vma (s, (const char **) NULL, 0); |
1e9cc1c2 | 678 | n = (struct defsym_list *) xmalloc (sizeof *n); |
252b5132 RH |
679 | n->next = defsyms; |
680 | n->name = optarg; | |
681 | n->value = i; | |
682 | defsyms = n; | |
683 | } | |
684 | break; | |
685 | ||
732f54cd | 686 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
687 | case 't': |
688 | { | |
76b0a8c0 KH |
689 | /* optarg is the name of the file containing the instruction |
690 | formats, opcodes, register names, etc. */ | |
252b5132 RH |
691 | struct itbl_file_list *n; |
692 | ||
693 | if (optarg == NULL) | |
694 | { | |
0e389e77 | 695 | as_warn (_("no file name following -t option")); |
252b5132 RH |
696 | break; |
697 | } | |
76b0a8c0 | 698 | |
33948635 | 699 | n = xmalloc (sizeof * n); |
252b5132 RH |
700 | n->next = itbl_files; |
701 | n->name = optarg; | |
702 | itbl_files = n; | |
703 | ||
704 | /* Parse the file and add the new instructions to our internal | |
76b0a8c0 KH |
705 | table. If multiple instruction tables are specified, the |
706 | information from this table gets appended onto the existing | |
707 | internal table. */ | |
252b5132 RH |
708 | itbl_files->name = xstrdup (optarg); |
709 | if (itbl_parse (itbl_files->name) != 0) | |
0e389e77 AM |
710 | as_fatal (_("failed to read instruction table %s\n"), |
711 | itbl_files->name); | |
252b5132 RH |
712 | } |
713 | break; | |
732f54cd | 714 | #endif |
252b5132 RH |
715 | |
716 | case OPTION_DEPFILE: | |
717 | start_dependencies (optarg); | |
718 | break; | |
719 | ||
329e276d | 720 | case 'g': |
8f94ae4d NC |
721 | /* Some backends, eg Alpha and Mips, use the -g switch for their |
722 | own purposes. So we check here for an explicit -g and allow | |
329e276d NC |
723 | the backend to decide if it wants to process it. */ |
724 | if ( old_argv[optind - 1][1] == 'g' | |
329e276d NC |
725 | && md_parse_option (optc, optarg)) |
726 | continue; | |
727 | ||
728 | if (md_debug_format_selector) | |
729 | debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions); | |
730 | else if (IS_ELF) | |
731 | debug_type = DEBUG_DWARF2; | |
732 | else | |
733 | debug_type = DEBUG_STABS; | |
734 | break; | |
735 | ||
05da4302 NC |
736 | case OPTION_GSTABS_PLUS: |
737 | use_gnu_debug_info_extensions = 1; | |
738 | /* Fall through. */ | |
252b5132 RH |
739 | case OPTION_GSTABS: |
740 | debug_type = DEBUG_STABS; | |
741 | break; | |
76b0a8c0 | 742 | |
fac0d250 RH |
743 | case OPTION_GDWARF2: |
744 | debug_type = DEBUG_DWARF2; | |
745 | break; | |
746 | ||
252b5132 RH |
747 | case 'J': |
748 | flag_signed_overflow_ok = 1; | |
749 | break; | |
750 | ||
751 | #ifndef WORKING_DOT_WORD | |
752 | case 'K': | |
753 | flag_warn_displacement = 1; | |
754 | break; | |
755 | #endif | |
252b5132 RH |
756 | case 'L': |
757 | flag_keep_locals = 1; | |
758 | break; | |
759 | ||
760 | case OPTION_LISTING_LHS_WIDTH: | |
76b0a8c0 | 761 | listing_lhs_width = atoi (optarg); |
252b5132 RH |
762 | if (listing_lhs_width_second < listing_lhs_width) |
763 | listing_lhs_width_second = listing_lhs_width; | |
764 | break; | |
765 | case OPTION_LISTING_LHS_WIDTH2: | |
766 | { | |
76b0a8c0 | 767 | int tmp = atoi (optarg); |
329e276d | 768 | |
252b5132 RH |
769 | if (tmp > listing_lhs_width) |
770 | listing_lhs_width_second = tmp; | |
771 | } | |
772 | break; | |
773 | case OPTION_LISTING_RHS_WIDTH: | |
76b0a8c0 | 774 | listing_rhs_width = atoi (optarg); |
252b5132 RH |
775 | break; |
776 | case OPTION_LISTING_CONT_LINES: | |
76b0a8c0 | 777 | listing_lhs_cont_lines = atoi (optarg); |
252b5132 RH |
778 | break; |
779 | ||
780 | case 'M': | |
781 | flag_mri = 1; | |
782 | #ifdef TC_M68K | |
783 | flag_m68k_mri = 1; | |
784 | #endif | |
785 | break; | |
786 | ||
787 | case 'R': | |
788 | flag_readonly_data_in_text = 1; | |
789 | break; | |
790 | ||
791 | case 'W': | |
792 | flag_no_warnings = 1; | |
793 | break; | |
794 | ||
2bdd6cf5 GK |
795 | case OPTION_WARN: |
796 | flag_no_warnings = 0; | |
797 | flag_fatal_warnings = 0; | |
798 | break; | |
799 | ||
800 | case OPTION_WARN_FATAL: | |
801 | flag_no_warnings = 0; | |
802 | flag_fatal_warnings = 1; | |
803 | break; | |
804 | ||
7be1c489 | 805 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
806 | case OPTION_EXECSTACK: |
807 | flag_execstack = 1; | |
808 | flag_noexecstack = 0; | |
809 | break; | |
810 | ||
811 | case OPTION_NOEXECSTACK: | |
812 | flag_noexecstack = 1; | |
813 | flag_execstack = 0; | |
814 | break; | |
815 | #endif | |
252b5132 RH |
816 | case 'Z': |
817 | flag_always_generate_output = 1; | |
818 | break; | |
819 | ||
5a14ab23 L |
820 | case OPTION_AL: |
821 | listing |= LISTING_LISTING; | |
822 | if (optarg) | |
823 | listing_filename = xstrdup (optarg); | |
824 | break; | |
825 | ||
caa32fe5 NC |
826 | case OPTION_ALTERNATE: |
827 | optarg = old_argv [optind - 1]; | |
828 | while (* optarg == '-') | |
829 | optarg ++; | |
830 | ||
831 | if (strcmp (optarg, "alternate") == 0) | |
832 | { | |
833 | flag_macro_alternate = 1; | |
834 | break; | |
835 | } | |
836 | optarg ++; | |
837 | /* Fall through. */ | |
838 | ||
252b5132 RH |
839 | case 'a': |
840 | if (optarg) | |
841 | { | |
fb767913 NC |
842 | if (optarg != old_argv[optind] && optarg[-1] == '=') |
843 | --optarg; | |
844 | ||
7f6d05e8 CP |
845 | if (md_parse_option (optc, optarg) != 0) |
846 | break; | |
847 | ||
252b5132 RH |
848 | while (*optarg) |
849 | { | |
850 | switch (*optarg) | |
851 | { | |
852 | case 'c': | |
853 | listing |= LISTING_NOCOND; | |
854 | break; | |
855 | case 'd': | |
856 | listing |= LISTING_NODEBUG; | |
857 | break; | |
83f10cb2 NC |
858 | case 'g': |
859 | listing |= LISTING_GENERAL; | |
860 | break; | |
252b5132 RH |
861 | case 'h': |
862 | listing |= LISTING_HLL; | |
863 | break; | |
864 | case 'l': | |
865 | listing |= LISTING_LISTING; | |
866 | break; | |
867 | case 'm': | |
868 | listing |= LISTING_MACEXP; | |
869 | break; | |
870 | case 'n': | |
871 | listing |= LISTING_NOFORM; | |
872 | break; | |
873 | case 's': | |
874 | listing |= LISTING_SYMBOLS; | |
875 | break; | |
876 | case '=': | |
877 | listing_filename = xstrdup (optarg + 1); | |
878 | optarg += strlen (listing_filename); | |
879 | break; | |
880 | default: | |
881 | as_fatal (_("invalid listing option `%c'"), *optarg); | |
882 | break; | |
883 | } | |
884 | optarg++; | |
885 | } | |
886 | } | |
887 | if (!listing) | |
888 | listing = LISTING_DEFAULT; | |
889 | break; | |
890 | ||
891 | case 'D': | |
76b0a8c0 KH |
892 | /* DEBUG is implemented: it debugs different |
893 | things from other people's assemblers. */ | |
252b5132 RH |
894 | flag_debug = 1; |
895 | break; | |
896 | ||
897 | case 'f': | |
898 | flag_no_comments = 1; | |
899 | break; | |
900 | ||
901 | case 'I': | |
76b0a8c0 | 902 | { /* Include file directory. */ |
252b5132 | 903 | char *temp = xstrdup (optarg); |
329e276d | 904 | |
252b5132 RH |
905 | add_include_dir (temp); |
906 | break; | |
907 | } | |
908 | ||
909 | case 'o': | |
910 | out_file_name = xstrdup (optarg); | |
911 | break; | |
912 | ||
913 | case 'w': | |
914 | break; | |
915 | ||
916 | case 'X': | |
76b0a8c0 | 917 | /* -X means treat warnings as errors. */ |
252b5132 | 918 | break; |
4bdd3565 NC |
919 | |
920 | case OPTION_REDUCE_MEMORY_OVERHEADS: | |
921 | /* The only change we make at the moment is to reduce | |
922 | the size of the hash tables that we use. */ | |
923 | set_gas_hash_table_size (4051); | |
924 | break; | |
925 | ||
926 | case OPTION_HASH_TABLE_SIZE: | |
927 | { | |
f7a568ea | 928 | unsigned long new_size; |
4bdd3565 NC |
929 | |
930 | new_size = strtoul (optarg, NULL, 0); | |
931 | if (new_size) | |
932 | set_gas_hash_table_size (new_size); | |
933 | else | |
934 | as_fatal (_("--hash-size needs a numeric argument")); | |
935 | break; | |
936 | } | |
252b5132 RH |
937 | } |
938 | } | |
939 | ||
940 | free (shortopts); | |
941 | free (longopts); | |
942 | ||
943 | *pargc = new_argc; | |
944 | *pargv = new_argv; | |
acebd4ce AS |
945 | |
946 | #ifdef md_after_parse_args | |
947 | md_after_parse_args (); | |
948 | #endif | |
252b5132 RH |
949 | } |
950 | ||
33948635 NC |
951 | static void |
952 | dump_statistics (void) | |
953 | { | |
954 | #ifdef HAVE_SBRK | |
955 | char *lim = (char *) sbrk (0); | |
956 | #endif | |
957 | long run_time = get_run_time () - start_time; | |
958 | ||
959 | fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"), | |
960 | myname, run_time / 1000000, run_time % 1000000); | |
961 | #ifdef HAVE_SBRK | |
962 | fprintf (stderr, _("%s: data size %ld\n"), | |
963 | myname, (long) (lim - (char *) &environ)); | |
964 | #endif | |
252b5132 | 965 | |
33948635 NC |
966 | subsegs_print_statistics (stderr); |
967 | write_print_statistics (stderr); | |
968 | symbol_print_statistics (stderr); | |
969 | read_print_statistics (stderr); | |
970 | ||
971 | #ifdef tc_print_statistics | |
972 | tc_print_statistics (stderr); | |
973 | #endif | |
974 | ||
975 | #ifdef obj_print_statistics | |
976 | obj_print_statistics (stderr); | |
977 | #endif | |
978 | } | |
979 | ||
0d474464 L |
980 | static void |
981 | close_output_file (void) | |
982 | { | |
983 | output_file_close (out_file_name); | |
58e8191c SA |
984 | if (!keep_it) |
985 | unlink_if_ordinary (out_file_name); | |
0d474464 | 986 | } |
0d474464 | 987 | |
33948635 NC |
988 | /* The interface between the macro code and gas expression handling. */ |
989 | ||
990 | static int | |
991 | macro_expr (const char *emsg, int idx, sb *in, int *val) | |
992 | { | |
993 | char *hold; | |
994 | expressionS ex; | |
995 | ||
996 | sb_terminate (in); | |
997 | ||
998 | hold = input_line_pointer; | |
999 | input_line_pointer = in->ptr + idx; | |
9497f5ac | 1000 | expression_and_evaluate (&ex); |
33948635 NC |
1001 | idx = input_line_pointer - in->ptr; |
1002 | input_line_pointer = hold; | |
1003 | ||
1004 | if (ex.X_op != O_constant) | |
1005 | as_bad ("%s", emsg); | |
1006 | ||
1007 | *val = (int) ex.X_add_number; | |
1008 | ||
1009 | return idx; | |
1010 | } | |
1011 | \f | |
1012 | /* Here to attempt 1 pass over each input file. | |
1013 | We scan argv[*] looking for filenames or exactly "" which is | |
1014 | shorthand for stdin. Any argv that is NULL is not a file-name. | |
1015 | We set need_pass_2 TRUE if, after this, we still have unresolved | |
1016 | expressions of the form (unknown value)+-(unknown value). | |
1017 | ||
1018 | Note the un*x semantics: there is only 1 logical input file, but it | |
1019 | may be a catenation of many 'physical' input files. */ | |
1020 | ||
1021 | static void | |
1022 | perform_an_assembly_pass (int argc, char ** argv) | |
1023 | { | |
1024 | int saw_a_file = 0; | |
33948635 | 1025 | flagword applicable; |
33948635 NC |
1026 | |
1027 | need_pass_2 = 0; | |
1028 | ||
33948635 NC |
1029 | /* Create the standard sections, and those the assembler uses |
1030 | internally. */ | |
1031 | text_section = subseg_new (TEXT_SECTION_NAME, 0); | |
1032 | data_section = subseg_new (DATA_SECTION_NAME, 0); | |
1033 | bss_section = subseg_new (BSS_SECTION_NAME, 0); | |
1034 | /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed | |
1035 | to have relocs, otherwise we don't find out in time. */ | |
1036 | applicable = bfd_applicable_section_flags (stdoutput); | |
1037 | bfd_set_section_flags (stdoutput, text_section, | |
1038 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
1039 | | SEC_CODE | SEC_READONLY)); | |
1040 | bfd_set_section_flags (stdoutput, data_section, | |
1041 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
1042 | | SEC_DATA)); | |
1043 | bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC); | |
1044 | seg_info (bss_section)->bss = 1; | |
1045 | subseg_new (BFD_ABS_SECTION_NAME, 0); | |
1046 | subseg_new (BFD_UND_SECTION_NAME, 0); | |
1047 | reg_section = subseg_new ("*GAS `reg' section*", 0); | |
1048 | expr_section = subseg_new ("*GAS `expr' section*", 0); | |
1049 | ||
33948635 NC |
1050 | subseg_set (text_section, 0); |
1051 | ||
1052 | /* This may add symbol table entries, which requires having an open BFD, | |
7be1c489 | 1053 | and sections already created. */ |
33948635 NC |
1054 | md_begin (); |
1055 | ||
1056 | #ifdef USING_CGEN | |
1057 | gas_cgen_begin (); | |
1058 | #endif | |
1059 | #ifdef obj_begin | |
1060 | obj_begin (); | |
1061 | #endif | |
1062 | ||
1063 | /* Skip argv[0]. */ | |
1064 | argv++; | |
1065 | argc--; | |
1066 | ||
1067 | while (argc--) | |
1068 | { | |
1069 | if (*argv) | |
1070 | { /* Is it a file-name argument? */ | |
1071 | PROGRESS (1); | |
1072 | saw_a_file++; | |
1073 | /* argv->"" if stdin desired, else->filename. */ | |
1074 | read_a_source_file (*argv); | |
1075 | } | |
1076 | argv++; /* Completed that argv. */ | |
1077 | } | |
1078 | if (!saw_a_file) | |
1079 | read_a_source_file (""); | |
1080 | } | |
1081 | \f | |
104d59d1 JM |
1082 | #ifdef OBJ_ELF |
1083 | static void | |
1084 | create_obj_attrs_section (void) | |
1085 | { | |
1086 | segT s; | |
1087 | char *p; | |
104d59d1 JM |
1088 | offsetT size; |
1089 | const char *name; | |
1090 | ||
1091 | size = bfd_elf_obj_attr_size (stdoutput); | |
1092 | if (size) | |
1093 | { | |
1094 | name = get_elf_backend_data (stdoutput)->obj_attrs_section; | |
1095 | if (!name) | |
1096 | name = ".gnu.attributes"; | |
1097 | s = subseg_new (name, 0); | |
1098 | elf_section_type (s) | |
1099 | = get_elf_backend_data (stdoutput)->obj_attrs_section_type; | |
1100 | bfd_set_section_flags (stdoutput, s, SEC_READONLY | SEC_DATA); | |
3d540e93 | 1101 | frag_now_fix (); |
104d59d1 JM |
1102 | p = frag_more (size); |
1103 | bfd_elf_set_obj_attr_contents (stdoutput, (bfd_byte *)p, size); | |
1104 | } | |
1105 | } | |
1106 | #endif | |
1107 | \f | |
a80076a1 | 1108 | |
76b0a8c0 | 1109 | int |
33948635 | 1110 | main (int argc, char ** argv) |
252b5132 | 1111 | { |
83f10cb2 NC |
1112 | char ** argv_orig = argv; |
1113 | ||
252b5132 | 1114 | int macro_strip_at; |
252b5132 RH |
1115 | |
1116 | start_time = get_run_time (); | |
1117 | ||
1118 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
1119 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
1120 | #endif |
1121 | #if defined (HAVE_SETLOCALE) | |
1122 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
1123 | #endif |
1124 | bindtextdomain (PACKAGE, LOCALEDIR); | |
1125 | textdomain (PACKAGE); | |
1126 | ||
1127 | if (debug_memory) | |
091e58c1 | 1128 | chunksize = 64; |
252b5132 RH |
1129 | |
1130 | #ifdef HOST_SPECIAL_INIT | |
1131 | HOST_SPECIAL_INIT (argc, argv); | |
1132 | #endif | |
1133 | ||
1134 | myname = argv[0]; | |
1135 | xmalloc_set_program_name (myname); | |
1136 | ||
869b9d07 MM |
1137 | expandargv (&argc, &argv); |
1138 | ||
252b5132 RH |
1139 | START_PROGRESS (myname, 0); |
1140 | ||
1141 | #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME | |
1142 | #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out" | |
1143 | #endif | |
1144 | ||
1145 | out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; | |
1146 | ||
1147 | hex_init (); | |
252b5132 RH |
1148 | bfd_init (); |
1149 | bfd_set_error_program_name (myname); | |
252b5132 RH |
1150 | |
1151 | #ifdef USE_EMULATIONS | |
1152 | select_emulation_mode (argc, argv); | |
1153 | #endif | |
1154 | ||
1155 | PROGRESS (1); | |
f7a568ea NC |
1156 | /* Call parse_args before any of the init/begin functions |
1157 | so that switches like --hash-size can be honored. */ | |
1158 | parse_args (&argc, &argv); | |
252b5132 RH |
1159 | symbol_begin (); |
1160 | frag_init (); | |
1161 | subsegs_begin (); | |
252b5132 RH |
1162 | read_begin (); |
1163 | input_scrub_begin (); | |
1164 | expr_begin (); | |
1165 | ||
0d474464 L |
1166 | /* It has to be called after dump_statistics (). */ |
1167 | xatexit (close_output_file); | |
0d474464 | 1168 | |
252b5132 RH |
1169 | if (flag_print_statistics) |
1170 | xatexit (dump_statistics); | |
1171 | ||
252b5132 RH |
1172 | macro_strip_at = 0; |
1173 | #ifdef TC_I960 | |
1174 | macro_strip_at = flag_mri; | |
1175 | #endif | |
252b5132 | 1176 | |
caa32fe5 | 1177 | macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr); |
252b5132 RH |
1178 | |
1179 | PROGRESS (1); | |
1180 | ||
252b5132 | 1181 | output_file_create (out_file_name); |
9c2799c2 | 1182 | gas_assert (stdoutput != 0); |
252b5132 RH |
1183 | |
1184 | #ifdef tc_init_after_args | |
1185 | tc_init_after_args (); | |
1186 | #endif | |
1187 | ||
1188 | itbl_init (); | |
1189 | ||
1e9cc1c2 NC |
1190 | dwarf2_init (); |
1191 | ||
252b5132 RH |
1192 | /* Now that we have fully initialized, and have created the output |
1193 | file, define any symbols requested by --defsym command line | |
1194 | arguments. */ | |
1195 | while (defsyms != NULL) | |
1196 | { | |
1197 | symbolS *sym; | |
1198 | struct defsym_list *next; | |
1199 | ||
1200 | sym = symbol_new (defsyms->name, absolute_section, defsyms->value, | |
1201 | &zero_address_frag); | |
bf083c64 NC |
1202 | /* Make symbols defined on the command line volatile, so that they |
1203 | can be redefined inside a source file. This makes this assembler's | |
1204 | behaviour compatible with earlier versions, but it may not be | |
1205 | completely intuitive. */ | |
1206 | S_SET_VOLATILE (sym); | |
252b5132 RH |
1207 | symbol_table_insert (sym); |
1208 | next = defsyms->next; | |
1209 | free (defsyms); | |
1210 | defsyms = next; | |
1211 | } | |
1212 | ||
1213 | PROGRESS (1); | |
1214 | ||
76b0a8c0 KH |
1215 | /* Assemble it. */ |
1216 | perform_an_assembly_pass (argc, argv); | |
252b5132 RH |
1217 | |
1218 | cond_finish_check (-1); | |
1219 | ||
1220 | #ifdef md_end | |
1221 | md_end (); | |
1222 | #endif | |
1223 | ||
104d59d1 | 1224 | #ifdef OBJ_ELF |
7ace4e4c JM |
1225 | if (IS_ELF) |
1226 | create_obj_attrs_section (); | |
104d59d1 JM |
1227 | #endif |
1228 | ||
7be1c489 | 1229 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
1230 | if ((flag_execstack || flag_noexecstack) |
1231 | && OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
1232 | { | |
1233 | segT gnustack; | |
1234 | ||
1235 | gnustack = subseg_new (".note.GNU-stack", 0); | |
1236 | bfd_set_section_flags (stdoutput, gnustack, | |
1237 | SEC_READONLY | (flag_execstack ? SEC_CODE : 0)); | |
1238 | ||
1239 | } | |
1240 | #endif | |
1241 | ||
43ad3147 | 1242 | /* If we've been collecting dwarf2 .debug_line info, either for |
39bb5fe6 RH |
1243 | assembly debugging or on behalf of the compiler, emit it now. */ |
1244 | dwarf2_finish (); | |
1245 | ||
a4447b93 RH |
1246 | /* If we constructed dwarf2 .eh_frame info, either via .cfi |
1247 | directives from the user or by the backend, emit it now. */ | |
54cfded0 | 1248 | cfi_finish (); |
54cfded0 | 1249 | |
252b5132 RH |
1250 | if (seen_at_least_1_file () |
1251 | && (flag_always_generate_output || had_errors () == 0)) | |
1252 | keep_it = 1; | |
1253 | else | |
1254 | keep_it = 0; | |
1255 | ||
252b5132 RH |
1256 | /* This used to be done at the start of write_object_file in |
1257 | write.c, but that caused problems when doing listings when | |
1258 | keep_it was zero. This could probably be moved above md_end, but | |
1259 | I didn't want to risk the change. */ | |
1260 | subsegs_finish (); | |
252b5132 RH |
1261 | |
1262 | if (keep_it) | |
1263 | write_object_file (); | |
1264 | ||
7f6a71ff JM |
1265 | fflush (stderr); |
1266 | ||
252b5132 | 1267 | #ifndef NO_LISTING |
83f10cb2 | 1268 | listing_print (listing_filename, argv_orig); |
252b5132 RH |
1269 | #endif |
1270 | ||
76b0a8c0 KH |
1271 | if (flag_fatal_warnings && had_warnings () > 0 && had_errors () == 0) |
1272 | as_bad (_("%d warnings, treating warnings as errors"), had_warnings ()); | |
2bdd6cf5 | 1273 | |
252b5132 RH |
1274 | if (had_errors () > 0 && ! flag_always_generate_output) |
1275 | keep_it = 0; | |
1276 | ||
252b5132 RH |
1277 | input_scrub_end (); |
1278 | ||
1279 | END_PROGRESS (myname); | |
1280 | ||
1281 | /* Use xexit instead of return, because under VMS environments they | |
1282 | may not place the same interpretation on the value given. */ | |
1283 | if (had_errors () > 0) | |
1284 | xexit (EXIT_FAILURE); | |
1285 | ||
1286 | /* Only generate dependency file if assembler was successful. */ | |
1287 | print_dependencies (); | |
1288 | ||
1289 | xexit (EXIT_SUCCESS); | |
1290 | } |