Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* as.c - GAS main program. |
2571583a | 2 | Copyright (C) 1987-2017 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 8 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
9 | any later version. |
10 | ||
ec2655a6 NC |
11 | GAS is distributed in the hope that it will be useful, but WITHOUT |
12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
14 | License for more details. | |
252b5132 RH |
15 | |
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
18 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
19 | 02110-1301, USA. */ | |
252b5132 | 20 | |
76b0a8c0 | 21 | /* Main program for AS; a 32-bit assembler of GNU. |
33948635 NC |
22 | Understands command arguments. |
23 | Has a few routines that don't fit in other modules because they | |
24 | are shared. | |
34bca508 | 25 | |
33948635 | 26 | bugs |
34bca508 | 27 | |
33948635 NC |
28 | : initialisers |
29 | Since no-one else says they will support them in future: I | |
30 | don't support them now. */ | |
252b5132 | 31 | |
252b5132 RH |
32 | #define COMMON |
33 | ||
34 | #include "as.h" | |
35 | #include "subsegs.h" | |
36 | #include "output-file.h" | |
37 | #include "sb.h" | |
38 | #include "macro.h" | |
bccba5f0 | 39 | #include "dwarf2dbg.h" |
54cfded0 | 40 | #include "dw2gencfi.h" |
b95d15c6 | 41 | #include "bfdver.h" |
b95d15c6 | 42 | |
84be4d71 ILT |
43 | #ifdef HAVE_ITBL_CPU |
44 | #include "itbl-ops.h" | |
45 | #else | |
252b5132 RH |
46 | #define itbl_init() |
47 | #endif | |
48 | ||
9cc92a36 NC |
49 | #ifdef USING_CGEN |
50 | /* Perform any cgen specific initialisation for gas. */ | |
33948635 | 51 | extern void gas_cgen_begin (void); |
9cc92a36 | 52 | #endif |
252b5132 | 53 | |
33948635 NC |
54 | /* We build a list of defsyms as we read the options, and then define |
55 | them after we have initialized everything. */ | |
56 | struct defsym_list | |
57 | { | |
58 | struct defsym_list *next; | |
59 | char *name; | |
60 | valueT value; | |
61 | }; | |
62 | ||
63 | ||
76b0a8c0 KH |
64 | /* True if a listing is wanted. */ |
65 | int listing; | |
252b5132 | 66 | |
252b5132 | 67 | /* Type of debugging to generate. */ |
4dc7ead9 | 68 | enum debug_info_type debug_type = DEBUG_UNSPECIFIED; |
05da4302 | 69 | int use_gnu_debug_info_extensions = 0; |
252b5132 | 70 | |
329e276d NC |
71 | #ifndef MD_DEBUG_FORMAT_SELECTOR |
72 | #define MD_DEBUG_FORMAT_SELECTOR NULL | |
73 | #endif | |
74 | static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR; | |
75 | ||
252b5132 | 76 | /* Maximum level of macro nesting. */ |
252b5132 RH |
77 | int max_macro_nest = 100; |
78 | ||
76b0a8c0 | 79 | /* argv[0] */ |
87c245cc | 80 | static char * myname; |
252b5132 RH |
81 | |
82 | /* The default obstack chunk size. If we set this to zero, the | |
83 | obstack code will use whatever will fit in a 4096 byte block. */ | |
84 | int chunksize = 0; | |
85 | ||
86 | /* To monitor memory allocation more effectively, make this non-zero. | |
87 | Then the chunk sizes for gas and bfd will be reduced. */ | |
88 | int debug_memory = 0; | |
89 | ||
54cfded0 AM |
90 | /* Enable verbose mode. */ |
91 | int verbose = 0; | |
92 | ||
b8871f35 L |
93 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
94 | int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON; | |
95 | #endif | |
96 | ||
58e8191c | 97 | /* Keep the output file. */ |
85024cd8 | 98 | static int keep_it = 0; |
58e8191c | 99 | |
33948635 NC |
100 | segT reg_section; |
101 | segT expr_section; | |
102 | segT text_section; | |
103 | segT data_section; | |
104 | segT bss_section; | |
252b5132 | 105 | |
33948635 NC |
106 | /* Name of listing file. */ |
107 | static char *listing_filename = NULL; | |
252b5132 RH |
108 | |
109 | static struct defsym_list *defsyms; | |
110 | ||
732f54cd JB |
111 | #ifdef HAVE_ITBL_CPU |
112 | /* Keep a record of the itbl files we read in. */ | |
113 | struct itbl_file_list | |
114 | { | |
115 | struct itbl_file_list *next; | |
116 | char *name; | |
117 | }; | |
33948635 | 118 | static struct itbl_file_list *itbl_files; |
732f54cd | 119 | #endif |
252b5132 | 120 | |
33948635 | 121 | static long start_time; |
252b5132 | 122 | |
caa32fe5 NC |
123 | static int flag_macro_alternate; |
124 | ||
252b5132 | 125 | \f |
252b5132 RH |
126 | #ifdef USE_EMULATIONS |
127 | #define EMULATION_ENVIRON "AS_EMULATION" | |
128 | ||
129 | extern struct emulation mipsbelf, mipslelf, mipself; | |
4c63da97 | 130 | extern struct emulation i386coff, i386elf, i386aout; |
3bcbcc3d | 131 | extern struct emulation crisaout, criself; |
252b5132 RH |
132 | |
133 | static struct emulation *const emulations[] = { EMULATIONS }; | |
134 | static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]); | |
135 | ||
252b5132 | 136 | static void |
33948635 | 137 | select_emulation_mode (int argc, char **argv) |
252b5132 RH |
138 | { |
139 | int i; | |
e0471c16 TS |
140 | char *p; |
141 | const char *em = NULL; | |
252b5132 RH |
142 | |
143 | for (i = 1; i < argc; i++) | |
144 | if (!strncmp ("--em", argv[i], 4)) | |
145 | break; | |
146 | ||
147 | if (i == argc) | |
148 | goto do_default; | |
149 | ||
150 | p = strchr (argv[i], '='); | |
151 | if (p) | |
152 | p++; | |
153 | else | |
76b0a8c0 | 154 | p = argv[i + 1]; |
252b5132 RH |
155 | |
156 | if (!p || !*p) | |
157 | as_fatal (_("missing emulation mode name")); | |
158 | em = p; | |
159 | ||
160 | do_default: | |
161 | if (em == 0) | |
162 | em = getenv (EMULATION_ENVIRON); | |
163 | if (em == 0) | |
164 | em = DEFAULT_EMULATION; | |
165 | ||
166 | if (em) | |
167 | { | |
168 | for (i = 0; i < n_emulations; i++) | |
169 | if (!strcmp (emulations[i]->name, em)) | |
170 | break; | |
171 | if (i == n_emulations) | |
172 | as_fatal (_("unrecognized emulation name `%s'"), em); | |
173 | this_emulation = emulations[i]; | |
174 | } | |
175 | else | |
176 | this_emulation = emulations[0]; | |
177 | ||
178 | this_emulation->init (); | |
179 | } | |
180 | ||
181 | const char * | |
33948635 | 182 | default_emul_bfd_name (void) |
252b5132 RH |
183 | { |
184 | abort (); | |
185 | return NULL; | |
186 | } | |
187 | ||
188 | void | |
33948635 | 189 | common_emul_init (void) |
252b5132 RH |
190 | { |
191 | this_format = this_emulation->format; | |
192 | ||
193 | if (this_emulation->leading_underscore == 2) | |
194 | this_emulation->leading_underscore = this_format->dfl_leading_underscore; | |
195 | ||
196 | if (this_emulation->default_endian != 2) | |
197 | target_big_endian = this_emulation->default_endian; | |
198 | ||
199 | if (this_emulation->fake_label_name == 0) | |
200 | { | |
201 | if (this_emulation->leading_underscore) | |
202 | this_emulation->fake_label_name = "L0\001"; | |
203 | else | |
204 | /* What other parameters should we test? */ | |
205 | this_emulation->fake_label_name = ".L0\001"; | |
206 | } | |
207 | } | |
208 | #endif | |
209 | ||
4c63da97 | 210 | void |
33948635 | 211 | print_version_id (void) |
4c63da97 AM |
212 | { |
213 | static int printed; | |
33948635 | 214 | |
4c63da97 AM |
215 | if (printed) |
216 | return; | |
217 | printed = 1; | |
218 | ||
7be1c489 | 219 | fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"), |
403487ec | 220 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
4c63da97 AM |
221 | } |
222 | ||
e12fe555 NC |
223 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
224 | enum compressed_debug_section_type flag_compress_debug | |
225 | = COMPRESS_DEBUG_GABI_ZLIB; | |
226 | #endif | |
227 | ||
4c63da97 | 228 | static void |
33948635 | 229 | show_usage (FILE * stream) |
4c63da97 AM |
230 | { |
231 | fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname); | |
232 | ||
233 | fprintf (stream, _("\ | |
234 | Options:\n\ | |
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\ | |
83f10cb2 | 239 | g include general info\n\ |
4c63da97 AM |
240 | h include high-level source\n\ |
241 | l include assembly\n\ | |
242 | m include macro expansions\n\ | |
243 | n omit forms processing\n\ | |
244 | s include symbols\n\ | |
4c63da97 AM |
245 | =FILE list to FILE (must be last sub-option)\n")); |
246 | ||
caa32fe5 NC |
247 | fprintf (stream, _("\ |
248 | --alternate initially turn on alternate macro syntax\n")); | |
e12fe555 | 249 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
4c63da97 | 250 | fprintf (stream, _("\ |
151411f8 | 251 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ |
e12fe555 | 252 | compress DWARF debug sections using zlib [default]\n")); |
700c4060 CC |
253 | fprintf (stream, _("\ |
254 | --nocompress-debug-sections\n\ | |
255 | don't compress DWARF debug sections\n")); | |
e12fe555 NC |
256 | #else |
257 | fprintf (stream, _("\ | |
258 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ | |
259 | compress DWARF debug sections using zlib\n")); | |
260 | fprintf (stream, _("\ | |
261 | --nocompress-debug-sections\n\ | |
262 | don't compress DWARF debug sections [default]\n")); | |
263 | #endif | |
700c4060 | 264 | fprintf (stream, _("\ |
4c63da97 AM |
265 | -D produce assembler debugging messages\n")); |
266 | fprintf (stream, _("\ | |
700c4060 CC |
267 | --debug-prefix-map OLD=NEW\n\ |
268 | map OLD to NEW in debug information\n")); | |
3d6b762c | 269 | fprintf (stream, _("\ |
4c63da97 AM |
270 | --defsym SYM=VAL define symbol SYM to given value\n")); |
271 | #ifdef USE_EMULATIONS | |
272 | { | |
273 | int i; | |
e0471c16 | 274 | const char *def_em; |
4c63da97 AM |
275 | |
276 | fprintf (stream, "\ | |
277 | --em=["); | |
76b0a8c0 | 278 | for (i = 0; i < n_emulations - 1; i++) |
4c63da97 AM |
279 | fprintf (stream, "%s | ", emulations[i]->name); |
280 | fprintf (stream, "%s]\n", emulations[i]->name); | |
281 | ||
282 | def_em = getenv (EMULATION_ENVIRON); | |
76b0a8c0 | 283 | if (!def_em) |
4c63da97 AM |
284 | def_em = DEFAULT_EMULATION; |
285 | fprintf (stream, _("\ | |
286 | emulate output (default %s)\n"), def_em); | |
287 | } | |
68d55fe3 | 288 | #endif |
7be1c489 | 289 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
290 | fprintf (stream, _("\ |
291 | --execstack require executable stack for this object\n")); | |
292 | fprintf (stream, _("\ | |
293 | --noexecstack don't require executable stack for this object\n")); | |
21be61f5 L |
294 | fprintf (stream, _("\ |
295 | --size-check=[error|warning]\n\ | |
296 | ELF .size directive check (default --size-check=error)\n")); | |
451133ce | 297 | fprintf (stream, _("\ |
b8871f35 L |
298 | --elf-stt-common=[no|yes]\n\ |
299 | generate ELF common symbols with STT_COMMON type\n")); | |
300 | fprintf (stream, _("\ | |
451133ce | 301 | --sectname-subst enable section name substitution sequences\n")); |
4c63da97 AM |
302 | #endif |
303 | fprintf (stream, _("\ | |
304 | -f skip whitespace and comment preprocessing\n")); | |
305 | fprintf (stream, _("\ | |
329e276d NC |
306 | -g --gen-debug generate debugging information\n")); |
307 | fprintf (stream, _("\ | |
308 | --gstabs generate STABS debugging information\n")); | |
4c63da97 | 309 | fprintf (stream, _("\ |
329e276d | 310 | --gstabs+ generate STABS debug info with GNU extensions\n")); |
05da4302 | 311 | fprintf (stream, _("\ |
329e276d | 312 | --gdwarf-2 generate DWARF2 debugging information\n")); |
4c63da97 | 313 | fprintf (stream, _("\ |
b40bf0a2 NC |
314 | --gdwarf-sections generate per-function section names for DWARF line information\n")); |
315 | fprintf (stream, _("\ | |
4bdd3565 NC |
316 | --hash-size=<value> set the hash table size close to <value>\n")); |
317 | fprintf (stream, _("\ | |
4c63da97 AM |
318 | --help show this message and exit\n")); |
319 | fprintf (stream, _("\ | |
ea20a7da CC |
320 | --target-help show target specific options\n")); |
321 | fprintf (stream, _("\ | |
4c63da97 AM |
322 | -I DIR add DIR to search list for .include directives\n")); |
323 | fprintf (stream, _("\ | |
324 | -J don't warn about signed overflow\n")); | |
325 | fprintf (stream, _("\ | |
326 | -K warn when differences altered for long displacements\n")); | |
327 | fprintf (stream, _("\ | |
328 | -L,--keep-locals keep local symbols (e.g. starting with `L')\n")); | |
329 | fprintf (stream, _("\ | |
330 | -M,--mri assemble in MRI compatibility mode\n")); | |
331 | fprintf (stream, _("\ | |
332 | --MD FILE write dependency information in FILE (default none)\n")); | |
333 | fprintf (stream, _("\ | |
334 | -nocpp ignored\n")); | |
335 | fprintf (stream, _("\ | |
2edb36e7 NC |
336 | -no-pad-sections do not pad the end of sections to alignment boundaries\n")); |
337 | fprintf (stream, _("\ | |
4c63da97 AM |
338 | -o OBJFILE name the object-file output OBJFILE (default a.out)\n")); |
339 | fprintf (stream, _("\ | |
340 | -R fold data section into text section\n")); | |
341 | fprintf (stream, _("\ | |
4bdd3565 NC |
342 | --reduce-memory-overheads \n\ |
343 | prefer smaller memory use at the cost of longer\n\ | |
344 | assembly times\n")); | |
345 | fprintf (stream, _("\ | |
4c63da97 AM |
346 | --statistics print various measured statistics from execution\n")); |
347 | fprintf (stream, _("\ | |
348 | --strip-local-absolute strip local absolute symbols\n")); | |
349 | fprintf (stream, _("\ | |
350 | --traditional-format Use same format as native assembler when possible\n")); | |
351 | fprintf (stream, _("\ | |
352 | --version print assembler version number and exit\n")); | |
353 | fprintf (stream, _("\ | |
354 | -W --no-warn suppress warnings\n")); | |
355 | fprintf (stream, _("\ | |
356 | --warn don't suppress warnings\n")); | |
357 | fprintf (stream, _("\ | |
358 | --fatal-warnings treat warnings as errors\n")); | |
732f54cd | 359 | #ifdef HAVE_ITBL_CPU |
4c63da97 AM |
360 | fprintf (stream, _("\ |
361 | --itbl INSTTBL extend instruction set to include instructions\n\ | |
362 | matching the specifications defined in file INSTTBL\n")); | |
732f54cd | 363 | #endif |
4c63da97 AM |
364 | fprintf (stream, _("\ |
365 | -w ignored\n")); | |
366 | fprintf (stream, _("\ | |
367 | -X ignored\n")); | |
368 | fprintf (stream, _("\ | |
369 | -Z generate object file even after errors\n")); | |
370 | fprintf (stream, _("\ | |
371 | --listing-lhs-width set the width in words of the output data column of\n\ | |
372 | the listing\n")); | |
373 | fprintf (stream, _("\ | |
374 | --listing-lhs-width2 set the width in words of the continuation lines\n\ | |
375 | of the output data column; ignored if smaller than\n\ | |
376 | the width of the first line\n")); | |
377 | fprintf (stream, _("\ | |
378 | --listing-rhs-width set the max width in characters of the lines from\n\ | |
379 | the source file\n")); | |
380 | fprintf (stream, _("\ | |
381 | --listing-cont-lines set the maximum number of continuation lines used\n\ | |
382 | for the output data column of the listing\n")); | |
a55ff675 | 383 | fprintf (stream, _("\ |
34bca508 | 384 | @FILE read options from FILE\n")); |
4c63da97 AM |
385 | |
386 | md_show_usage (stream); | |
387 | ||
c20f4f8c | 388 | fputc ('\n', stream); |
92f01d61 JM |
389 | |
390 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
391 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); | |
4c63da97 AM |
392 | } |
393 | ||
76b0a8c0 KH |
394 | /* Since it is easy to do here we interpret the special arg "-" |
395 | to mean "use stdin" and we set that argv[] pointing to "". | |
396 | After we have munged argv[], the only things left are source file | |
397 | name(s) and ""(s) denoting stdin. These file names are used | |
398 | (perhaps more than once) later. | |
399 | ||
400 | check for new machine-dep cmdline options in | |
401 | md_parse_option definitions in config/tc-*.c. */ | |
252b5132 RH |
402 | |
403 | static void | |
33948635 | 404 | parse_args (int * pargc, char *** pargv) |
252b5132 | 405 | { |
33948635 NC |
406 | int old_argc; |
407 | int new_argc; | |
408 | char ** old_argv; | |
409 | char ** new_argv; | |
252b5132 RH |
410 | /* Starting the short option string with '-' is for programs that |
411 | expect options and other ARGV-elements in any order and that care about | |
412 | the ordering of the two. We describe each non-option ARGV-element | |
413 | as if it were the argument of an option with character code 1. */ | |
252b5132 | 414 | char *shortopts; |
5a38dc70 | 415 | extern const char *md_shortopts; |
33948635 NC |
416 | static const char std_shortopts[] = |
417 | { | |
30a2b4ef | 418 | '-', 'J', |
252b5132 | 419 | #ifndef WORKING_DOT_WORD |
30a2b4ef KH |
420 | /* -K is not meaningful if .word is not being hacked. */ |
421 | 'K', | |
252b5132 | 422 | #endif |
8f94ae4d | 423 | 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':', |
252b5132 | 424 | #ifndef VMS |
30a2b4ef KH |
425 | /* -v takes an argument on VMS, so we don't make it a generic |
426 | option. */ | |
427 | 'v', | |
252b5132 | 428 | #endif |
30a2b4ef | 429 | 'w', 'X', |
732f54cd | 430 | #ifdef HAVE_ITBL_CPU |
33948635 | 431 | /* New option for extending instruction set (see also --itbl below). */ |
30a2b4ef | 432 | 't', ':', |
732f54cd | 433 | #endif |
30a2b4ef KH |
434 | '\0' |
435 | }; | |
252b5132 RH |
436 | struct option *longopts; |
437 | extern struct option md_longopts[]; | |
438 | extern size_t md_longopts_size; | |
33948635 NC |
439 | /* Codes used for the long options with no short synonyms. */ |
440 | enum option_values | |
441 | { | |
442 | OPTION_HELP = OPTION_STD_BASE, | |
443 | OPTION_NOCPP, | |
444 | OPTION_STATISTICS, | |
445 | OPTION_VERSION, | |
446 | OPTION_DUMPCONFIG, | |
447 | OPTION_VERBOSE, | |
448 | OPTION_EMULATION, | |
3d6b762c | 449 | OPTION_DEBUG_PREFIX_MAP, |
33948635 | 450 | OPTION_DEFSYM, |
33948635 NC |
451 | OPTION_LISTING_LHS_WIDTH, |
452 | OPTION_LISTING_LHS_WIDTH2, | |
453 | OPTION_LISTING_RHS_WIDTH, | |
454 | OPTION_LISTING_CONT_LINES, | |
455 | OPTION_DEPFILE, | |
456 | OPTION_GSTABS, | |
05da4302 | 457 | OPTION_GSTABS_PLUS, |
329e276d | 458 | OPTION_GDWARF2, |
b40bf0a2 | 459 | OPTION_GDWARF_SECTIONS, |
33948635 NC |
460 | OPTION_STRIP_LOCAL_ABSOLUTE, |
461 | OPTION_TRADITIONAL_FORMAT, | |
33948635 NC |
462 | OPTION_WARN, |
463 | OPTION_TARGET_HELP, | |
464 | OPTION_EXECSTACK, | |
465 | OPTION_NOEXECSTACK, | |
21be61f5 | 466 | OPTION_SIZE_CHECK, |
b8871f35 | 467 | OPTION_ELF_STT_COMMON, |
451133ce | 468 | OPTION_SECTNAME_SUBST, |
caa32fe5 | 469 | OPTION_ALTERNATE, |
5a14ab23 | 470 | OPTION_AL, |
4bdd3565 NC |
471 | OPTION_HASH_TABLE_SIZE, |
472 | OPTION_REDUCE_MEMORY_OVERHEADS, | |
0acf065b CC |
473 | OPTION_WARN_FATAL, |
474 | OPTION_COMPRESS_DEBUG, | |
2edb36e7 NC |
475 | OPTION_NOCOMPRESS_DEBUG, |
476 | OPTION_NO_PAD_SECTIONS /* = STD_BASE + 40 */ | |
329e276d NC |
477 | /* When you add options here, check that they do |
478 | not collide with OPTION_MD_BASE. See as.h. */ | |
33948635 | 479 | }; |
34bca508 | 480 | |
33948635 NC |
481 | static const struct option std_longopts[] = |
482 | { | |
329e276d | 483 | /* Note: commas are placed at the start of the line rather than |
cc643b88 | 484 | the end of the preceding line so that it is simpler to |
329e276d NC |
485 | selectively add and remove lines from this list. */ |
486 | {"alternate", no_argument, NULL, OPTION_ALTERNATE} | |
fb767913 NC |
487 | /* The entry for "a" is here to prevent getopt_long_only() from |
488 | considering that -a is an abbreviation for --alternate. This is | |
489 | necessary because -a=<FILE> is a valid switch but getopt would | |
490 | normally reject it since --alternate does not take an argument. */ | |
491 | ,{"a", optional_argument, NULL, 'a'} | |
5a14ab23 L |
492 | /* Handle -al=<FILE>. */ |
493 | ,{"al", optional_argument, NULL, OPTION_AL} | |
151411f8 | 494 | ,{"compress-debug-sections", optional_argument, NULL, OPTION_COMPRESS_DEBUG} |
0acf065b | 495 | ,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG} |
3d6b762c | 496 | ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP} |
329e276d NC |
497 | ,{"defsym", required_argument, NULL, OPTION_DEFSYM} |
498 | ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG} | |
499 | ,{"emulation", required_argument, NULL, OPTION_EMULATION} | |
7be1c489 | 500 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
329e276d NC |
501 | ,{"execstack", no_argument, NULL, OPTION_EXECSTACK} |
502 | ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK} | |
21be61f5 | 503 | ,{"size-check", required_argument, NULL, OPTION_SIZE_CHECK} |
b8871f35 | 504 | ,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON} |
451133ce | 505 | ,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST} |
329e276d NC |
506 | #endif |
507 | ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL} | |
508 | ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2} | |
509 | /* GCC uses --gdwarf-2 but GAS uses to use --gdwarf2, | |
510 | so we keep it here for backwards compatibility. */ | |
511 | ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2} | |
b40bf0a2 | 512 | ,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS} |
329e276d NC |
513 | ,{"gen-debug", no_argument, NULL, 'g'} |
514 | ,{"gstabs", no_argument, NULL, OPTION_GSTABS} | |
515 | ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS} | |
4bdd3565 | 516 | ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE} |
329e276d | 517 | ,{"help", no_argument, NULL, OPTION_HELP} |
732f54cd | 518 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
519 | /* New option for extending instruction set (see also -t above). |
520 | The "-t file" or "--itbl file" option extends the basic set of | |
521 | valid instructions by reading "file", a text file containing a | |
522 | list of instruction formats. The additional opcodes and their | |
523 | formats are added to the built-in set of instructions, and | |
524 | mnemonics for new registers may also be defined. */ | |
732f54cd JB |
525 | ,{"itbl", required_argument, NULL, 't'} |
526 | #endif | |
329e276d NC |
527 | /* getopt allows abbreviations, so we do this to stop it from |
528 | treating -k as an abbreviation for --keep-locals. Some | |
529 | ports use -k to enable PIC assembly. */ | |
530 | ,{"keep-locals", no_argument, NULL, 'L'} | |
531 | ,{"keep-locals", no_argument, NULL, 'L'} | |
532 | ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH} | |
533 | ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2} | |
534 | ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH} | |
535 | ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES} | |
536 | ,{"MD", required_argument, NULL, OPTION_DEPFILE} | |
537 | ,{"mri", no_argument, NULL, 'M'} | |
538 | ,{"nocpp", no_argument, NULL, OPTION_NOCPP} | |
2edb36e7 | 539 | ,{"no-pad-sections", no_argument, NULL, OPTION_NO_PAD_SECTIONS} |
329e276d | 540 | ,{"no-warn", no_argument, NULL, 'W'} |
4bdd3565 | 541 | ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS} |
329e276d NC |
542 | ,{"statistics", no_argument, NULL, OPTION_STATISTICS} |
543 | ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE} | |
544 | ,{"version", no_argument, NULL, OPTION_VERSION} | |
545 | ,{"verbose", no_argument, NULL, OPTION_VERBOSE} | |
546 | ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP} | |
547 | ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT} | |
548 | ,{"warn", no_argument, NULL, OPTION_WARN} | |
252b5132 RH |
549 | }; |
550 | ||
beb2de9b AC |
551 | /* Construct the option lists from the standard list and the target |
552 | dependent list. Include space for an extra NULL option and | |
76b0a8c0 | 553 | always NULL terminate. */ |
252b5132 | 554 | shortopts = concat (std_shortopts, md_shortopts, (char *) NULL); |
1e9cc1c2 NC |
555 | longopts = (struct option *) xmalloc (sizeof (std_longopts) |
556 | + md_longopts_size + sizeof (struct option)); | |
252b5132 | 557 | memcpy (longopts, std_longopts, sizeof (std_longopts)); |
33948635 NC |
558 | memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size); |
559 | memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size, | |
beb2de9b | 560 | 0, sizeof (struct option)); |
252b5132 RH |
561 | |
562 | /* Make a local copy of the old argv. */ | |
563 | old_argc = *pargc; | |
564 | old_argv = *pargv; | |
565 | ||
566 | /* Initialize a new argv that contains no options. */ | |
add39d23 | 567 | new_argv = XNEWVEC (char *, old_argc + 1); |
252b5132 RH |
568 | new_argv[0] = old_argv[0]; |
569 | new_argc = 1; | |
570 | new_argv[new_argc] = NULL; | |
571 | ||
572 | while (1) | |
573 | { | |
574 | /* getopt_long_only is like getopt_long, but '-' as well as '--' can | |
575 | indicate a long option. */ | |
576 | int longind; | |
577 | int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts, | |
578 | &longind); | |
579 | ||
580 | if (optc == -1) | |
581 | break; | |
582 | ||
583 | switch (optc) | |
584 | { | |
585 | default: | |
586 | /* md_parse_option should return 1 if it recognizes optc, | |
587 | 0 if not. */ | |
588 | if (md_parse_option (optc, optarg) != 0) | |
589 | break; | |
590 | /* `-v' isn't included in the general short_opts list, so check for | |
47eebc20 | 591 | it explicitly here before deciding we've gotten a bad argument. */ |
252b5132 RH |
592 | if (optc == 'v') |
593 | { | |
594 | #ifdef VMS | |
595 | /* Telling getopt to treat -v's value as optional can result | |
596 | in it picking up a following filename argument here. The | |
597 | VMS code in md_parse_option can return 0 in that case, | |
598 | but it has no way of pushing the filename argument back. */ | |
599 | if (optarg && *optarg) | |
30a2b4ef | 600 | new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL; |
252b5132 RH |
601 | else |
602 | #else | |
603 | case 'v': | |
604 | #endif | |
605 | case OPTION_VERBOSE: | |
606 | print_version_id (); | |
54cfded0 | 607 | verbose = 1; |
252b5132 RH |
608 | break; |
609 | } | |
329e276d NC |
610 | else |
611 | as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : ""); | |
76b0a8c0 | 612 | /* Fall through. */ |
252b5132 RH |
613 | |
614 | case '?': | |
615 | exit (EXIT_FAILURE); | |
616 | ||
617 | case 1: /* File name. */ | |
618 | if (!strcmp (optarg, "-")) | |
97830986 | 619 | optarg = (char *) ""; |
252b5132 RH |
620 | new_argv[new_argc++] = optarg; |
621 | new_argv[new_argc] = NULL; | |
622 | break; | |
ef99799a | 623 | |
ea20a7da | 624 | case OPTION_TARGET_HELP: |
411863a4 KH |
625 | md_show_usage (stdout); |
626 | exit (EXIT_SUCCESS); | |
252b5132 RH |
627 | |
628 | case OPTION_HELP: | |
629 | show_usage (stdout); | |
630 | exit (EXIT_SUCCESS); | |
631 | ||
632 | case OPTION_NOCPP: | |
633 | break; | |
634 | ||
2edb36e7 NC |
635 | case OPTION_NO_PAD_SECTIONS: |
636 | do_not_pad_sections_to_alignment = 1; | |
637 | break; | |
638 | ||
252b5132 RH |
639 | case OPTION_STATISTICS: |
640 | flag_print_statistics = 1; | |
641 | break; | |
642 | ||
643 | case OPTION_STRIP_LOCAL_ABSOLUTE: | |
644 | flag_strip_local_absolute = 1; | |
645 | break; | |
646 | ||
647 | case OPTION_TRADITIONAL_FORMAT: | |
648 | flag_traditional_format = 1; | |
649 | break; | |
650 | ||
651 | case OPTION_VERSION: | |
652 | /* This output is intended to follow the GNU standards document. */ | |
6c19f338 | 653 | printf (_("GNU assembler %s\n"), BFD_VERSION_STRING); |
2571583a | 654 | printf (_("Copyright (C) 2017 Free Software Foundation, Inc.\n")); |
252b5132 RH |
655 | printf (_("\ |
656 | This program is free software; you may redistribute it under the terms of\n\ | |
ec2655a6 NC |
657 | the GNU General Public License version 3 or later.\n\ |
658 | This program has absolutely no warranty.\n")); | |
9004b6bd AB |
659 | #ifdef TARGET_WITH_CPU |
660 | printf (_("This assembler was configured for a target of `%s' " | |
661 | "and default,\ncpu type `%s'.\n"), | |
662 | TARGET_ALIAS, TARGET_WITH_CPU); | |
663 | #else | |
252b5132 RH |
664 | printf (_("This assembler was configured for a target of `%s'.\n"), |
665 | TARGET_ALIAS); | |
9004b6bd | 666 | #endif |
252b5132 RH |
667 | exit (EXIT_SUCCESS); |
668 | ||
669 | case OPTION_EMULATION: | |
670 | #ifdef USE_EMULATIONS | |
671 | if (strcmp (optarg, this_emulation->name)) | |
672 | as_fatal (_("multiple emulation names specified")); | |
673 | #else | |
674 | as_fatal (_("emulations not handled in this configuration")); | |
675 | #endif | |
676 | break; | |
677 | ||
678 | case OPTION_DUMPCONFIG: | |
679 | fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS); | |
680 | fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL); | |
681 | fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU); | |
682 | #ifdef TARGET_OBJ_FORMAT | |
683 | fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT); | |
684 | #endif | |
685 | #ifdef TARGET_FORMAT | |
686 | fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT); | |
687 | #endif | |
688 | exit (EXIT_SUCCESS); | |
689 | ||
0acf065b | 690 | case OPTION_COMPRESS_DEBUG: |
151411f8 L |
691 | if (optarg) |
692 | { | |
693 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF | |
694 | if (strcasecmp (optarg, "none") == 0) | |
695 | flag_compress_debug = COMPRESS_DEBUG_NONE; | |
696 | else if (strcasecmp (optarg, "zlib") == 0) | |
19a7fe52 | 697 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
151411f8 L |
698 | else if (strcasecmp (optarg, "zlib-gnu") == 0) |
699 | flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB; | |
700 | else if (strcasecmp (optarg, "zlib-gabi") == 0) | |
701 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
702 | else | |
703 | as_fatal (_("Invalid --compress-debug-sections option: `%s'"), | |
704 | optarg); | |
705 | #else | |
706 | as_fatal (_("--compress-debug-sections=%s is unsupported"), | |
707 | optarg); | |
708 | #endif | |
709 | } | |
710 | else | |
19a7fe52 | 711 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
0acf065b CC |
712 | break; |
713 | ||
714 | case OPTION_NOCOMPRESS_DEBUG: | |
151411f8 | 715 | flag_compress_debug = COMPRESS_DEBUG_NONE; |
0acf065b CC |
716 | break; |
717 | ||
3d6b762c JM |
718 | case OPTION_DEBUG_PREFIX_MAP: |
719 | add_debug_prefix_map (optarg); | |
720 | break; | |
721 | ||
252b5132 RH |
722 | case OPTION_DEFSYM: |
723 | { | |
724 | char *s; | |
a38cf1db | 725 | valueT i; |
252b5132 RH |
726 | struct defsym_list *n; |
727 | ||
728 | for (s = optarg; *s != '\0' && *s != '='; s++) | |
729 | ; | |
730 | if (*s == '\0') | |
731 | as_fatal (_("bad defsym; format is --defsym name=value")); | |
732 | *s++ = '\0'; | |
a38cf1db | 733 | i = bfd_scan_vma (s, (const char **) NULL, 0); |
add39d23 | 734 | n = XNEW (struct defsym_list); |
252b5132 RH |
735 | n->next = defsyms; |
736 | n->name = optarg; | |
737 | n->value = i; | |
738 | defsyms = n; | |
739 | } | |
740 | break; | |
741 | ||
732f54cd | 742 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
743 | case 't': |
744 | { | |
76b0a8c0 KH |
745 | /* optarg is the name of the file containing the instruction |
746 | formats, opcodes, register names, etc. */ | |
252b5132 RH |
747 | struct itbl_file_list *n; |
748 | ||
749 | if (optarg == NULL) | |
750 | { | |
0e389e77 | 751 | as_warn (_("no file name following -t option")); |
252b5132 RH |
752 | break; |
753 | } | |
76b0a8c0 | 754 | |
325801bd | 755 | n = XNEW (struct itbl_file_list); |
252b5132 RH |
756 | n->next = itbl_files; |
757 | n->name = optarg; | |
758 | itbl_files = n; | |
759 | ||
760 | /* Parse the file and add the new instructions to our internal | |
76b0a8c0 KH |
761 | table. If multiple instruction tables are specified, the |
762 | information from this table gets appended onto the existing | |
763 | internal table. */ | |
252b5132 RH |
764 | itbl_files->name = xstrdup (optarg); |
765 | if (itbl_parse (itbl_files->name) != 0) | |
0e389e77 AM |
766 | as_fatal (_("failed to read instruction table %s\n"), |
767 | itbl_files->name); | |
252b5132 RH |
768 | } |
769 | break; | |
732f54cd | 770 | #endif |
252b5132 RH |
771 | |
772 | case OPTION_DEPFILE: | |
773 | start_dependencies (optarg); | |
774 | break; | |
775 | ||
329e276d | 776 | case 'g': |
8f94ae4d NC |
777 | /* Some backends, eg Alpha and Mips, use the -g switch for their |
778 | own purposes. So we check here for an explicit -g and allow | |
329e276d NC |
779 | the backend to decide if it wants to process it. */ |
780 | if ( old_argv[optind - 1][1] == 'g' | |
329e276d NC |
781 | && md_parse_option (optc, optarg)) |
782 | continue; | |
783 | ||
784 | if (md_debug_format_selector) | |
785 | debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions); | |
786 | else if (IS_ELF) | |
787 | debug_type = DEBUG_DWARF2; | |
788 | else | |
789 | debug_type = DEBUG_STABS; | |
790 | break; | |
791 | ||
05da4302 NC |
792 | case OPTION_GSTABS_PLUS: |
793 | use_gnu_debug_info_extensions = 1; | |
794 | /* Fall through. */ | |
252b5132 RH |
795 | case OPTION_GSTABS: |
796 | debug_type = DEBUG_STABS; | |
797 | break; | |
76b0a8c0 | 798 | |
fac0d250 RH |
799 | case OPTION_GDWARF2: |
800 | debug_type = DEBUG_DWARF2; | |
801 | break; | |
802 | ||
b40bf0a2 NC |
803 | case OPTION_GDWARF_SECTIONS: |
804 | flag_dwarf_sections = TRUE; | |
805 | break; | |
806 | ||
252b5132 RH |
807 | case 'J': |
808 | flag_signed_overflow_ok = 1; | |
809 | break; | |
810 | ||
811 | #ifndef WORKING_DOT_WORD | |
812 | case 'K': | |
813 | flag_warn_displacement = 1; | |
814 | break; | |
815 | #endif | |
252b5132 RH |
816 | case 'L': |
817 | flag_keep_locals = 1; | |
818 | break; | |
819 | ||
820 | case OPTION_LISTING_LHS_WIDTH: | |
76b0a8c0 | 821 | listing_lhs_width = atoi (optarg); |
252b5132 RH |
822 | if (listing_lhs_width_second < listing_lhs_width) |
823 | listing_lhs_width_second = listing_lhs_width; | |
824 | break; | |
825 | case OPTION_LISTING_LHS_WIDTH2: | |
826 | { | |
76b0a8c0 | 827 | int tmp = atoi (optarg); |
329e276d | 828 | |
252b5132 RH |
829 | if (tmp > listing_lhs_width) |
830 | listing_lhs_width_second = tmp; | |
831 | } | |
832 | break; | |
833 | case OPTION_LISTING_RHS_WIDTH: | |
76b0a8c0 | 834 | listing_rhs_width = atoi (optarg); |
252b5132 RH |
835 | break; |
836 | case OPTION_LISTING_CONT_LINES: | |
76b0a8c0 | 837 | listing_lhs_cont_lines = atoi (optarg); |
252b5132 RH |
838 | break; |
839 | ||
840 | case 'M': | |
841 | flag_mri = 1; | |
842 | #ifdef TC_M68K | |
843 | flag_m68k_mri = 1; | |
844 | #endif | |
845 | break; | |
846 | ||
847 | case 'R': | |
848 | flag_readonly_data_in_text = 1; | |
849 | break; | |
850 | ||
851 | case 'W': | |
852 | flag_no_warnings = 1; | |
853 | break; | |
854 | ||
2bdd6cf5 GK |
855 | case OPTION_WARN: |
856 | flag_no_warnings = 0; | |
857 | flag_fatal_warnings = 0; | |
858 | break; | |
859 | ||
860 | case OPTION_WARN_FATAL: | |
861 | flag_no_warnings = 0; | |
862 | flag_fatal_warnings = 1; | |
863 | break; | |
864 | ||
7be1c489 | 865 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
866 | case OPTION_EXECSTACK: |
867 | flag_execstack = 1; | |
868 | flag_noexecstack = 0; | |
869 | break; | |
870 | ||
871 | case OPTION_NOEXECSTACK: | |
872 | flag_noexecstack = 1; | |
873 | flag_execstack = 0; | |
874 | break; | |
21be61f5 L |
875 | |
876 | case OPTION_SIZE_CHECK: | |
877 | if (strcasecmp (optarg, "error") == 0) | |
a90fb5e3 | 878 | flag_allow_nonconst_size = FALSE; |
21be61f5 | 879 | else if (strcasecmp (optarg, "warning") == 0) |
a90fb5e3 | 880 | flag_allow_nonconst_size = TRUE; |
21be61f5 L |
881 | else |
882 | as_fatal (_("Invalid --size-check= option: `%s'"), optarg); | |
883 | break; | |
451133ce | 884 | |
b8871f35 L |
885 | case OPTION_ELF_STT_COMMON: |
886 | if (strcasecmp (optarg, "no") == 0) | |
887 | flag_use_elf_stt_common = 0; | |
888 | else if (strcasecmp (optarg, "yes") == 0) | |
889 | flag_use_elf_stt_common = 1; | |
890 | else | |
891 | as_fatal (_("Invalid --elf-stt-common= option: `%s'"), | |
892 | optarg); | |
893 | break; | |
894 | ||
451133ce NP |
895 | case OPTION_SECTNAME_SUBST: |
896 | flag_sectname_subst = 1; | |
897 | break; | |
68d55fe3 | 898 | #endif |
252b5132 RH |
899 | case 'Z': |
900 | flag_always_generate_output = 1; | |
901 | break; | |
902 | ||
5a14ab23 L |
903 | case OPTION_AL: |
904 | listing |= LISTING_LISTING; | |
905 | if (optarg) | |
906 | listing_filename = xstrdup (optarg); | |
907 | break; | |
908 | ||
caa32fe5 NC |
909 | case OPTION_ALTERNATE: |
910 | optarg = old_argv [optind - 1]; | |
911 | while (* optarg == '-') | |
912 | optarg ++; | |
913 | ||
914 | if (strcmp (optarg, "alternate") == 0) | |
915 | { | |
916 | flag_macro_alternate = 1; | |
917 | break; | |
918 | } | |
919 | optarg ++; | |
920 | /* Fall through. */ | |
921 | ||
252b5132 RH |
922 | case 'a': |
923 | if (optarg) | |
924 | { | |
fb767913 NC |
925 | if (optarg != old_argv[optind] && optarg[-1] == '=') |
926 | --optarg; | |
927 | ||
7f6d05e8 CP |
928 | if (md_parse_option (optc, optarg) != 0) |
929 | break; | |
930 | ||
252b5132 RH |
931 | while (*optarg) |
932 | { | |
933 | switch (*optarg) | |
934 | { | |
935 | case 'c': | |
936 | listing |= LISTING_NOCOND; | |
937 | break; | |
938 | case 'd': | |
939 | listing |= LISTING_NODEBUG; | |
940 | break; | |
83f10cb2 NC |
941 | case 'g': |
942 | listing |= LISTING_GENERAL; | |
943 | break; | |
252b5132 RH |
944 | case 'h': |
945 | listing |= LISTING_HLL; | |
946 | break; | |
947 | case 'l': | |
948 | listing |= LISTING_LISTING; | |
949 | break; | |
950 | case 'm': | |
951 | listing |= LISTING_MACEXP; | |
952 | break; | |
953 | case 'n': | |
954 | listing |= LISTING_NOFORM; | |
955 | break; | |
956 | case 's': | |
957 | listing |= LISTING_SYMBOLS; | |
958 | break; | |
959 | case '=': | |
960 | listing_filename = xstrdup (optarg + 1); | |
961 | optarg += strlen (listing_filename); | |
962 | break; | |
963 | default: | |
964 | as_fatal (_("invalid listing option `%c'"), *optarg); | |
965 | break; | |
966 | } | |
967 | optarg++; | |
968 | } | |
969 | } | |
970 | if (!listing) | |
971 | listing = LISTING_DEFAULT; | |
972 | break; | |
973 | ||
974 | case 'D': | |
76b0a8c0 KH |
975 | /* DEBUG is implemented: it debugs different |
976 | things from other people's assemblers. */ | |
252b5132 RH |
977 | flag_debug = 1; |
978 | break; | |
979 | ||
980 | case 'f': | |
981 | flag_no_comments = 1; | |
982 | break; | |
983 | ||
984 | case 'I': | |
76b0a8c0 | 985 | { /* Include file directory. */ |
252b5132 | 986 | char *temp = xstrdup (optarg); |
329e276d | 987 | |
252b5132 RH |
988 | add_include_dir (temp); |
989 | break; | |
990 | } | |
991 | ||
992 | case 'o': | |
993 | out_file_name = xstrdup (optarg); | |
994 | break; | |
995 | ||
996 | case 'w': | |
997 | break; | |
998 | ||
999 | case 'X': | |
76b0a8c0 | 1000 | /* -X means treat warnings as errors. */ |
252b5132 | 1001 | break; |
4bdd3565 NC |
1002 | |
1003 | case OPTION_REDUCE_MEMORY_OVERHEADS: | |
1004 | /* The only change we make at the moment is to reduce | |
1005 | the size of the hash tables that we use. */ | |
1006 | set_gas_hash_table_size (4051); | |
1007 | break; | |
1008 | ||
1009 | case OPTION_HASH_TABLE_SIZE: | |
1010 | { | |
f7a568ea | 1011 | unsigned long new_size; |
4bdd3565 NC |
1012 | |
1013 | new_size = strtoul (optarg, NULL, 0); | |
1014 | if (new_size) | |
1015 | set_gas_hash_table_size (new_size); | |
1016 | else | |
1017 | as_fatal (_("--hash-size needs a numeric argument")); | |
1018 | break; | |
1019 | } | |
252b5132 RH |
1020 | } |
1021 | } | |
1022 | ||
1023 | free (shortopts); | |
1024 | free (longopts); | |
1025 | ||
1026 | *pargc = new_argc; | |
1027 | *pargv = new_argv; | |
acebd4ce AS |
1028 | |
1029 | #ifdef md_after_parse_args | |
1030 | md_after_parse_args (); | |
1031 | #endif | |
252b5132 RH |
1032 | } |
1033 | ||
33948635 NC |
1034 | static void |
1035 | dump_statistics (void) | |
1036 | { | |
33948635 NC |
1037 | long run_time = get_run_time () - start_time; |
1038 | ||
1039 | fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"), | |
1040 | myname, run_time / 1000000, run_time % 1000000); | |
252b5132 | 1041 | |
33948635 NC |
1042 | subsegs_print_statistics (stderr); |
1043 | write_print_statistics (stderr); | |
1044 | symbol_print_statistics (stderr); | |
1045 | read_print_statistics (stderr); | |
1046 | ||
1047 | #ifdef tc_print_statistics | |
1048 | tc_print_statistics (stderr); | |
1049 | #endif | |
1050 | ||
1051 | #ifdef obj_print_statistics | |
1052 | obj_print_statistics (stderr); | |
1053 | #endif | |
1054 | } | |
1055 | ||
0d474464 L |
1056 | static void |
1057 | close_output_file (void) | |
1058 | { | |
1059 | output_file_close (out_file_name); | |
58e8191c SA |
1060 | if (!keep_it) |
1061 | unlink_if_ordinary (out_file_name); | |
0d474464 | 1062 | } |
0d474464 | 1063 | |
33948635 NC |
1064 | /* The interface between the macro code and gas expression handling. */ |
1065 | ||
39a45edc AM |
1066 | static size_t |
1067 | macro_expr (const char *emsg, size_t idx, sb *in, offsetT *val) | |
33948635 NC |
1068 | { |
1069 | char *hold; | |
1070 | expressionS ex; | |
1071 | ||
1072 | sb_terminate (in); | |
1073 | ||
1074 | hold = input_line_pointer; | |
1075 | input_line_pointer = in->ptr + idx; | |
9497f5ac | 1076 | expression_and_evaluate (&ex); |
33948635 NC |
1077 | idx = input_line_pointer - in->ptr; |
1078 | input_line_pointer = hold; | |
1079 | ||
1080 | if (ex.X_op != O_constant) | |
1081 | as_bad ("%s", emsg); | |
1082 | ||
39a45edc | 1083 | *val = ex.X_add_number; |
33948635 NC |
1084 | |
1085 | return idx; | |
1086 | } | |
1087 | \f | |
1088 | /* Here to attempt 1 pass over each input file. | |
1089 | We scan argv[*] looking for filenames or exactly "" which is | |
1090 | shorthand for stdin. Any argv that is NULL is not a file-name. | |
1091 | We set need_pass_2 TRUE if, after this, we still have unresolved | |
1092 | expressions of the form (unknown value)+-(unknown value). | |
1093 | ||
1094 | Note the un*x semantics: there is only 1 logical input file, but it | |
1095 | may be a catenation of many 'physical' input files. */ | |
1096 | ||
1097 | static void | |
1098 | perform_an_assembly_pass (int argc, char ** argv) | |
1099 | { | |
1100 | int saw_a_file = 0; | |
bcf0aac6 | 1101 | #ifndef OBJ_MACH_O |
33948635 | 1102 | flagword applicable; |
bcf0aac6 | 1103 | #endif |
33948635 NC |
1104 | |
1105 | need_pass_2 = 0; | |
1106 | ||
bcf0aac6 | 1107 | #ifndef OBJ_MACH_O |
33948635 NC |
1108 | /* Create the standard sections, and those the assembler uses |
1109 | internally. */ | |
1110 | text_section = subseg_new (TEXT_SECTION_NAME, 0); | |
1111 | data_section = subseg_new (DATA_SECTION_NAME, 0); | |
1112 | bss_section = subseg_new (BSS_SECTION_NAME, 0); | |
1113 | /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed | |
1114 | to have relocs, otherwise we don't find out in time. */ | |
1115 | applicable = bfd_applicable_section_flags (stdoutput); | |
1116 | bfd_set_section_flags (stdoutput, text_section, | |
1117 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
1118 | | SEC_CODE | SEC_READONLY)); | |
1119 | bfd_set_section_flags (stdoutput, data_section, | |
1120 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
1121 | | SEC_DATA)); | |
1122 | bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC); | |
1123 | seg_info (bss_section)->bss = 1; | |
bcf0aac6 | 1124 | #endif |
33948635 NC |
1125 | subseg_new (BFD_ABS_SECTION_NAME, 0); |
1126 | subseg_new (BFD_UND_SECTION_NAME, 0); | |
1127 | reg_section = subseg_new ("*GAS `reg' section*", 0); | |
1128 | expr_section = subseg_new ("*GAS `expr' section*", 0); | |
1129 | ||
bcf0aac6 | 1130 | #ifndef OBJ_MACH_O |
33948635 | 1131 | subseg_set (text_section, 0); |
bcf0aac6 | 1132 | #endif |
33948635 NC |
1133 | |
1134 | /* This may add symbol table entries, which requires having an open BFD, | |
7be1c489 | 1135 | and sections already created. */ |
33948635 NC |
1136 | md_begin (); |
1137 | ||
1138 | #ifdef USING_CGEN | |
1139 | gas_cgen_begin (); | |
1140 | #endif | |
1141 | #ifdef obj_begin | |
1142 | obj_begin (); | |
1143 | #endif | |
1144 | ||
1145 | /* Skip argv[0]. */ | |
1146 | argv++; | |
1147 | argc--; | |
1148 | ||
1149 | while (argc--) | |
1150 | { | |
1151 | if (*argv) | |
1152 | { /* Is it a file-name argument? */ | |
1153 | PROGRESS (1); | |
1154 | saw_a_file++; | |
1155 | /* argv->"" if stdin desired, else->filename. */ | |
1156 | read_a_source_file (*argv); | |
1157 | } | |
1158 | argv++; /* Completed that argv. */ | |
1159 | } | |
1160 | if (!saw_a_file) | |
1161 | read_a_source_file (""); | |
1162 | } | |
1163 | \f | |
a80076a1 | 1164 | |
76b0a8c0 | 1165 | int |
33948635 | 1166 | main (int argc, char ** argv) |
252b5132 | 1167 | { |
83f10cb2 NC |
1168 | char ** argv_orig = argv; |
1169 | ||
252b5132 | 1170 | int macro_strip_at; |
252b5132 RH |
1171 | |
1172 | start_time = get_run_time (); | |
1ec4b9f2 | 1173 | signal_init (); |
252b5132 RH |
1174 | |
1175 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
1176 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
1177 | #endif |
1178 | #if defined (HAVE_SETLOCALE) | |
1179 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
1180 | #endif |
1181 | bindtextdomain (PACKAGE, LOCALEDIR); | |
1182 | textdomain (PACKAGE); | |
1183 | ||
1184 | if (debug_memory) | |
091e58c1 | 1185 | chunksize = 64; |
252b5132 RH |
1186 | |
1187 | #ifdef HOST_SPECIAL_INIT | |
1188 | HOST_SPECIAL_INIT (argc, argv); | |
1189 | #endif | |
1190 | ||
1191 | myname = argv[0]; | |
1192 | xmalloc_set_program_name (myname); | |
1193 | ||
869b9d07 MM |
1194 | expandargv (&argc, &argv); |
1195 | ||
252b5132 RH |
1196 | START_PROGRESS (myname, 0); |
1197 | ||
1198 | #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME | |
1199 | #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out" | |
1200 | #endif | |
1201 | ||
1202 | out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; | |
1203 | ||
1204 | hex_init (); | |
252b5132 RH |
1205 | bfd_init (); |
1206 | bfd_set_error_program_name (myname); | |
252b5132 RH |
1207 | |
1208 | #ifdef USE_EMULATIONS | |
1209 | select_emulation_mode (argc, argv); | |
1210 | #endif | |
1211 | ||
1212 | PROGRESS (1); | |
f7a568ea NC |
1213 | /* Call parse_args before any of the init/begin functions |
1214 | so that switches like --hash-size can be honored. */ | |
1215 | parse_args (&argc, &argv); | |
252b5132 RH |
1216 | symbol_begin (); |
1217 | frag_init (); | |
1218 | subsegs_begin (); | |
252b5132 RH |
1219 | read_begin (); |
1220 | input_scrub_begin (); | |
1221 | expr_begin (); | |
1222 | ||
0d474464 L |
1223 | /* It has to be called after dump_statistics (). */ |
1224 | xatexit (close_output_file); | |
0d474464 | 1225 | |
252b5132 RH |
1226 | if (flag_print_statistics) |
1227 | xatexit (dump_statistics); | |
1228 | ||
252b5132 RH |
1229 | macro_strip_at = 0; |
1230 | #ifdef TC_I960 | |
1231 | macro_strip_at = flag_mri; | |
1232 | #endif | |
252b5132 | 1233 | |
caa32fe5 | 1234 | macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr); |
252b5132 RH |
1235 | |
1236 | PROGRESS (1); | |
1237 | ||
252b5132 | 1238 | output_file_create (out_file_name); |
9c2799c2 | 1239 | gas_assert (stdoutput != 0); |
252b5132 | 1240 | |
4a826962 MR |
1241 | dot_symbol_init (); |
1242 | ||
252b5132 RH |
1243 | #ifdef tc_init_after_args |
1244 | tc_init_after_args (); | |
1245 | #endif | |
1246 | ||
1247 | itbl_init (); | |
1248 | ||
1e9cc1c2 NC |
1249 | dwarf2_init (); |
1250 | ||
6885131b AM |
1251 | local_symbol_make (".gasversion.", absolute_section, |
1252 | BFD_VERSION / 10000UL, &predefined_address_frag); | |
00ce9deb | 1253 | |
252b5132 RH |
1254 | /* Now that we have fully initialized, and have created the output |
1255 | file, define any symbols requested by --defsym command line | |
1256 | arguments. */ | |
1257 | while (defsyms != NULL) | |
1258 | { | |
1259 | symbolS *sym; | |
1260 | struct defsym_list *next; | |
1261 | ||
1262 | sym = symbol_new (defsyms->name, absolute_section, defsyms->value, | |
1263 | &zero_address_frag); | |
bf083c64 NC |
1264 | /* Make symbols defined on the command line volatile, so that they |
1265 | can be redefined inside a source file. This makes this assembler's | |
1266 | behaviour compatible with earlier versions, but it may not be | |
1267 | completely intuitive. */ | |
1268 | S_SET_VOLATILE (sym); | |
252b5132 RH |
1269 | symbol_table_insert (sym); |
1270 | next = defsyms->next; | |
1271 | free (defsyms); | |
1272 | defsyms = next; | |
1273 | } | |
1274 | ||
1275 | PROGRESS (1); | |
1276 | ||
76b0a8c0 KH |
1277 | /* Assemble it. */ |
1278 | perform_an_assembly_pass (argc, argv); | |
252b5132 RH |
1279 | |
1280 | cond_finish_check (-1); | |
1281 | ||
1282 | #ifdef md_end | |
1283 | md_end (); | |
1284 | #endif | |
104d59d1 | 1285 | |
7be1c489 | 1286 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
1287 | if ((flag_execstack || flag_noexecstack) |
1288 | && OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
1289 | { | |
1290 | segT gnustack; | |
1291 | ||
1292 | gnustack = subseg_new (".note.GNU-stack", 0); | |
1293 | bfd_set_section_flags (stdoutput, gnustack, | |
1294 | SEC_READONLY | (flag_execstack ? SEC_CODE : 0)); | |
34bca508 | 1295 | |
68d55fe3 JJ |
1296 | } |
1297 | #endif | |
1298 | ||
43ad3147 | 1299 | /* If we've been collecting dwarf2 .debug_line info, either for |
39bb5fe6 RH |
1300 | assembly debugging or on behalf of the compiler, emit it now. */ |
1301 | dwarf2_finish (); | |
1302 | ||
34bca508 | 1303 | /* If we constructed dwarf2 .eh_frame info, either via .cfi |
a4447b93 | 1304 | directives from the user or by the backend, emit it now. */ |
54cfded0 | 1305 | cfi_finish (); |
54cfded0 | 1306 | |
85024cd8 AM |
1307 | keep_it = 0; |
1308 | if (seen_at_least_1_file ()) | |
1309 | { | |
1310 | int n_warns, n_errs; | |
1311 | char warn_msg[50]; | |
1312 | char err_msg[50]; | |
1313 | ||
1314 | write_object_file (); | |
1315 | ||
1316 | n_warns = had_warnings (); | |
1317 | n_errs = had_errors (); | |
1318 | ||
1319 | if (n_warns == 1) | |
1320 | sprintf (warn_msg, _("%d warning"), n_warns); | |
1321 | else | |
1322 | sprintf (warn_msg, _("%d warnings"), n_warns); | |
1323 | if (n_errs == 1) | |
1324 | sprintf (err_msg, _("%d error"), n_errs); | |
1325 | else | |
1326 | sprintf (err_msg, _("%d errors"), n_errs); | |
252b5132 | 1327 | |
85024cd8 AM |
1328 | if (flag_fatal_warnings && n_warns != 0) |
1329 | { | |
1330 | if (n_errs == 0) | |
1331 | as_bad (_("%s, treating warnings as errors"), warn_msg); | |
1332 | n_errs += n_warns; | |
1333 | } | |
252b5132 | 1334 | |
85024cd8 AM |
1335 | if (n_errs == 0) |
1336 | keep_it = 1; | |
1337 | else if (flag_always_generate_output) | |
1338 | { | |
1339 | /* The -Z flag indicates that an object file should be generated, | |
1340 | regardless of warnings and errors. */ | |
1341 | keep_it = 1; | |
1342 | fprintf (stderr, _("%s, %s, generating bad object file\n"), | |
1343 | err_msg, warn_msg); | |
1344 | } | |
1345 | } | |
252b5132 | 1346 | |
7f6a71ff JM |
1347 | fflush (stderr); |
1348 | ||
252b5132 | 1349 | #ifndef NO_LISTING |
83f10cb2 | 1350 | listing_print (listing_filename, argv_orig); |
252b5132 RH |
1351 | #endif |
1352 | ||
252b5132 RH |
1353 | input_scrub_end (); |
1354 | ||
1355 | END_PROGRESS (myname); | |
1356 | ||
1357 | /* Use xexit instead of return, because under VMS environments they | |
1358 | may not place the same interpretation on the value given. */ | |
85024cd8 | 1359 | if (had_errors () != 0) |
252b5132 RH |
1360 | xexit (EXIT_FAILURE); |
1361 | ||
1362 | /* Only generate dependency file if assembler was successful. */ | |
1363 | print_dependencies (); | |
1364 | ||
1365 | xexit (EXIT_SUCCESS); | |
1366 | } |