Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* as.c - GAS main program. |
b3adc24a | 2 | Copyright (C) 1987-2020 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 | ||
5f71e59e JW |
34 | /* Disable code to set FAKE_LABEL_NAME in obj-multi.h, to avoid circular |
35 | reference. */ | |
36 | #define INITIALIZING_EMULS | |
37 | ||
252b5132 RH |
38 | #include "as.h" |
39 | #include "subsegs.h" | |
40 | #include "output-file.h" | |
41 | #include "sb.h" | |
42 | #include "macro.h" | |
bccba5f0 | 43 | #include "dwarf2dbg.h" |
54cfded0 | 44 | #include "dw2gencfi.h" |
b95d15c6 | 45 | #include "bfdver.h" |
2469b3c5 | 46 | #include "write.h" |
b95d15c6 | 47 | |
84be4d71 ILT |
48 | #ifdef HAVE_ITBL_CPU |
49 | #include "itbl-ops.h" | |
50 | #else | |
252b5132 RH |
51 | #define itbl_init() |
52 | #endif | |
53 | ||
9cc92a36 NC |
54 | #ifdef USING_CGEN |
55 | /* Perform any cgen specific initialisation for gas. */ | |
33948635 | 56 | extern void gas_cgen_begin (void); |
9cc92a36 | 57 | #endif |
252b5132 | 58 | |
33948635 NC |
59 | /* We build a list of defsyms as we read the options, and then define |
60 | them after we have initialized everything. */ | |
61 | struct defsym_list | |
62 | { | |
63 | struct defsym_list *next; | |
64 | char *name; | |
65 | valueT value; | |
66 | }; | |
67 | ||
68 | ||
76b0a8c0 KH |
69 | /* True if a listing is wanted. */ |
70 | int listing; | |
252b5132 | 71 | |
252b5132 | 72 | /* Type of debugging to generate. */ |
4dc7ead9 | 73 | enum debug_info_type debug_type = DEBUG_UNSPECIFIED; |
05da4302 | 74 | int use_gnu_debug_info_extensions = 0; |
252b5132 | 75 | |
329e276d NC |
76 | #ifndef MD_DEBUG_FORMAT_SELECTOR |
77 | #define MD_DEBUG_FORMAT_SELECTOR NULL | |
78 | #endif | |
79 | static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR; | |
80 | ||
252b5132 | 81 | /* Maximum level of macro nesting. */ |
252b5132 RH |
82 | int max_macro_nest = 100; |
83 | ||
76b0a8c0 | 84 | /* argv[0] */ |
87c245cc | 85 | static char * myname; |
252b5132 RH |
86 | |
87 | /* The default obstack chunk size. If we set this to zero, the | |
88 | obstack code will use whatever will fit in a 4096 byte block. */ | |
89 | int chunksize = 0; | |
90 | ||
91 | /* To monitor memory allocation more effectively, make this non-zero. | |
92 | Then the chunk sizes for gas and bfd will be reduced. */ | |
93 | int debug_memory = 0; | |
94 | ||
54cfded0 AM |
95 | /* Enable verbose mode. */ |
96 | int verbose = 0; | |
97 | ||
0ac2b354 AB |
98 | /* Which version of DWARF CIE to produce. This default value of -1 |
99 | indicates that this value has not been set yet, a default value is | |
100 | provided in dwarf2_init. A different value can also be supplied by the | |
101 | command line flag --gdwarf-cie-version, or by a target in | |
102 | MD_AFTER_PARSE_ARGS. */ | |
103 | int flag_dwarf_cie_version = -1; | |
66f8b2cb | 104 | |
b8871f35 L |
105 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
106 | int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON; | |
0df8ad28 | 107 | bfd_boolean flag_generate_build_notes = DEFAULT_GENERATE_BUILD_NOTES; |
b8871f35 L |
108 | #endif |
109 | ||
58e8191c | 110 | /* Keep the output file. */ |
85024cd8 | 111 | static int keep_it = 0; |
58e8191c | 112 | |
33948635 NC |
113 | segT reg_section; |
114 | segT expr_section; | |
115 | segT text_section; | |
116 | segT data_section; | |
117 | segT bss_section; | |
252b5132 | 118 | |
33948635 NC |
119 | /* Name of listing file. */ |
120 | static char *listing_filename = NULL; | |
252b5132 RH |
121 | |
122 | static struct defsym_list *defsyms; | |
123 | ||
732f54cd JB |
124 | #ifdef HAVE_ITBL_CPU |
125 | /* Keep a record of the itbl files we read in. */ | |
126 | struct itbl_file_list | |
127 | { | |
128 | struct itbl_file_list *next; | |
129 | char *name; | |
130 | }; | |
33948635 | 131 | static struct itbl_file_list *itbl_files; |
732f54cd | 132 | #endif |
252b5132 | 133 | |
33948635 | 134 | static long start_time; |
252b5132 | 135 | |
caa32fe5 NC |
136 | static int flag_macro_alternate; |
137 | ||
252b5132 | 138 | \f |
252b5132 RH |
139 | #ifdef USE_EMULATIONS |
140 | #define EMULATION_ENVIRON "AS_EMULATION" | |
141 | ||
142 | extern struct emulation mipsbelf, mipslelf, mipself; | |
4c63da97 | 143 | extern struct emulation i386coff, i386elf, i386aout; |
3bcbcc3d | 144 | extern struct emulation crisaout, criself; |
252b5132 RH |
145 | |
146 | static struct emulation *const emulations[] = { EMULATIONS }; | |
147 | static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]); | |
148 | ||
252b5132 | 149 | static void |
33948635 | 150 | select_emulation_mode (int argc, char **argv) |
252b5132 RH |
151 | { |
152 | int i; | |
e0471c16 TS |
153 | char *p; |
154 | const char *em = NULL; | |
252b5132 RH |
155 | |
156 | for (i = 1; i < argc; i++) | |
157 | if (!strncmp ("--em", argv[i], 4)) | |
158 | break; | |
159 | ||
160 | if (i == argc) | |
161 | goto do_default; | |
162 | ||
163 | p = strchr (argv[i], '='); | |
164 | if (p) | |
165 | p++; | |
166 | else | |
76b0a8c0 | 167 | p = argv[i + 1]; |
252b5132 RH |
168 | |
169 | if (!p || !*p) | |
170 | as_fatal (_("missing emulation mode name")); | |
171 | em = p; | |
172 | ||
173 | do_default: | |
174 | if (em == 0) | |
175 | em = getenv (EMULATION_ENVIRON); | |
176 | if (em == 0) | |
177 | em = DEFAULT_EMULATION; | |
178 | ||
179 | if (em) | |
180 | { | |
181 | for (i = 0; i < n_emulations; i++) | |
182 | if (!strcmp (emulations[i]->name, em)) | |
183 | break; | |
184 | if (i == n_emulations) | |
185 | as_fatal (_("unrecognized emulation name `%s'"), em); | |
186 | this_emulation = emulations[i]; | |
187 | } | |
188 | else | |
189 | this_emulation = emulations[0]; | |
190 | ||
191 | this_emulation->init (); | |
192 | } | |
193 | ||
194 | const char * | |
33948635 | 195 | default_emul_bfd_name (void) |
252b5132 RH |
196 | { |
197 | abort (); | |
198 | return NULL; | |
199 | } | |
200 | ||
201 | void | |
33948635 | 202 | common_emul_init (void) |
252b5132 RH |
203 | { |
204 | this_format = this_emulation->format; | |
205 | ||
206 | if (this_emulation->leading_underscore == 2) | |
207 | this_emulation->leading_underscore = this_format->dfl_leading_underscore; | |
208 | ||
209 | if (this_emulation->default_endian != 2) | |
210 | target_big_endian = this_emulation->default_endian; | |
211 | ||
212 | if (this_emulation->fake_label_name == 0) | |
213 | { | |
214 | if (this_emulation->leading_underscore) | |
2469b3c5 | 215 | this_emulation->fake_label_name = FAKE_LABEL_NAME; |
252b5132 RH |
216 | else |
217 | /* What other parameters should we test? */ | |
2469b3c5 | 218 | this_emulation->fake_label_name = "." FAKE_LABEL_NAME; |
252b5132 RH |
219 | } |
220 | } | |
221 | #endif | |
222 | ||
4c63da97 | 223 | void |
33948635 | 224 | print_version_id (void) |
4c63da97 AM |
225 | { |
226 | static int printed; | |
33948635 | 227 | |
4c63da97 AM |
228 | if (printed) |
229 | return; | |
230 | printed = 1; | |
231 | ||
7be1c489 | 232 | fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"), |
403487ec | 233 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
4c63da97 AM |
234 | } |
235 | ||
e12fe555 NC |
236 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
237 | enum compressed_debug_section_type flag_compress_debug | |
238 | = COMPRESS_DEBUG_GABI_ZLIB; | |
239 | #endif | |
240 | ||
4c63da97 | 241 | static void |
33948635 | 242 | show_usage (FILE * stream) |
4c63da97 AM |
243 | { |
244 | fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname); | |
245 | ||
246 | fprintf (stream, _("\ | |
247 | Options:\n\ | |
248 | -a[sub-option...] turn on listings\n\ | |
249 | Sub-options [default hls]:\n\ | |
250 | c omit false conditionals\n\ | |
251 | d omit debugging directives\n\ | |
83f10cb2 | 252 | g include general info\n\ |
4c63da97 AM |
253 | h include high-level source\n\ |
254 | l include assembly\n\ | |
255 | m include macro expansions\n\ | |
256 | n omit forms processing\n\ | |
257 | s include symbols\n\ | |
4c63da97 AM |
258 | =FILE list to FILE (must be last sub-option)\n")); |
259 | ||
caa32fe5 NC |
260 | fprintf (stream, _("\ |
261 | --alternate initially turn on alternate macro syntax\n")); | |
e12fe555 | 262 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
4c63da97 | 263 | fprintf (stream, _("\ |
151411f8 | 264 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ |
e12fe555 | 265 | compress DWARF debug sections using zlib [default]\n")); |
700c4060 CC |
266 | fprintf (stream, _("\ |
267 | --nocompress-debug-sections\n\ | |
268 | don't compress DWARF debug sections\n")); | |
e12fe555 NC |
269 | #else |
270 | fprintf (stream, _("\ | |
271 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ | |
272 | compress DWARF debug sections using zlib\n")); | |
273 | fprintf (stream, _("\ | |
274 | --nocompress-debug-sections\n\ | |
275 | don't compress DWARF debug sections [default]\n")); | |
276 | #endif | |
700c4060 | 277 | fprintf (stream, _("\ |
4c63da97 AM |
278 | -D produce assembler debugging messages\n")); |
279 | fprintf (stream, _("\ | |
700c4060 CC |
280 | --debug-prefix-map OLD=NEW\n\ |
281 | map OLD to NEW in debug information\n")); | |
3d6b762c | 282 | fprintf (stream, _("\ |
4c63da97 AM |
283 | --defsym SYM=VAL define symbol SYM to given value\n")); |
284 | #ifdef USE_EMULATIONS | |
285 | { | |
286 | int i; | |
e0471c16 | 287 | const char *def_em; |
4c63da97 AM |
288 | |
289 | fprintf (stream, "\ | |
290 | --em=["); | |
76b0a8c0 | 291 | for (i = 0; i < n_emulations - 1; i++) |
4c63da97 AM |
292 | fprintf (stream, "%s | ", emulations[i]->name); |
293 | fprintf (stream, "%s]\n", emulations[i]->name); | |
294 | ||
295 | def_em = getenv (EMULATION_ENVIRON); | |
76b0a8c0 | 296 | if (!def_em) |
4c63da97 AM |
297 | def_em = DEFAULT_EMULATION; |
298 | fprintf (stream, _("\ | |
299 | emulate output (default %s)\n"), def_em); | |
300 | } | |
68d55fe3 | 301 | #endif |
7be1c489 | 302 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
303 | fprintf (stream, _("\ |
304 | --execstack require executable stack for this object\n")); | |
305 | fprintf (stream, _("\ | |
306 | --noexecstack don't require executable stack for this object\n")); | |
21be61f5 L |
307 | fprintf (stream, _("\ |
308 | --size-check=[error|warning]\n\ | |
309 | ELF .size directive check (default --size-check=error)\n")); | |
451133ce | 310 | fprintf (stream, _("\ |
3a53fb12 L |
311 | --elf-stt-common=[no|yes] ")); |
312 | if (DEFAULT_GENERATE_ELF_STT_COMMON) | |
313 | fprintf (stream, _("(default: yes)\n")); | |
314 | else | |
315 | fprintf (stream, _("(default: no)\n")); | |
316 | fprintf (stream, _("\ | |
b8871f35 L |
317 | generate ELF common symbols with STT_COMMON type\n")); |
318 | fprintf (stream, _("\ | |
451133ce | 319 | --sectname-subst enable section name substitution sequences\n")); |
0df8ad28 NC |
320 | |
321 | fprintf (stream, _("\ | |
322 | --generate-missing-build-notes=[no|yes] ")); | |
323 | #if DEFAULT_GENERATE_BUILD_NOTES | |
324 | fprintf (stream, _("(default: yes)\n")); | |
325 | #else | |
326 | fprintf (stream, _("(default: no)\n")); | |
4c63da97 | 327 | #endif |
0df8ad28 NC |
328 | fprintf (stream, _("\ |
329 | generate GNU Build notes if none are present in the input\n")); | |
330 | #endif /* OBJ_ELF */ | |
331 | ||
4c63da97 AM |
332 | fprintf (stream, _("\ |
333 | -f skip whitespace and comment preprocessing\n")); | |
334 | fprintf (stream, _("\ | |
329e276d NC |
335 | -g --gen-debug generate debugging information\n")); |
336 | fprintf (stream, _("\ | |
337 | --gstabs generate STABS debugging information\n")); | |
4c63da97 | 338 | fprintf (stream, _("\ |
329e276d | 339 | --gstabs+ generate STABS debug info with GNU extensions\n")); |
05da4302 | 340 | fprintf (stream, _("\ |
329e276d | 341 | --gdwarf-2 generate DWARF2 debugging information\n")); |
4c63da97 | 342 | fprintf (stream, _("\ |
b40bf0a2 NC |
343 | --gdwarf-sections generate per-function section names for DWARF line information\n")); |
344 | fprintf (stream, _("\ | |
4bdd3565 NC |
345 | --hash-size=<value> set the hash table size close to <value>\n")); |
346 | fprintf (stream, _("\ | |
4c63da97 AM |
347 | --help show this message and exit\n")); |
348 | fprintf (stream, _("\ | |
ea20a7da CC |
349 | --target-help show target specific options\n")); |
350 | fprintf (stream, _("\ | |
4c63da97 AM |
351 | -I DIR add DIR to search list for .include directives\n")); |
352 | fprintf (stream, _("\ | |
353 | -J don't warn about signed overflow\n")); | |
354 | fprintf (stream, _("\ | |
355 | -K warn when differences altered for long displacements\n")); | |
356 | fprintf (stream, _("\ | |
357 | -L,--keep-locals keep local symbols (e.g. starting with `L')\n")); | |
358 | fprintf (stream, _("\ | |
359 | -M,--mri assemble in MRI compatibility mode\n")); | |
360 | fprintf (stream, _("\ | |
361 | --MD FILE write dependency information in FILE (default none)\n")); | |
362 | fprintf (stream, _("\ | |
363 | -nocpp ignored\n")); | |
364 | fprintf (stream, _("\ | |
2edb36e7 NC |
365 | -no-pad-sections do not pad the end of sections to alignment boundaries\n")); |
366 | fprintf (stream, _("\ | |
4c63da97 AM |
367 | -o OBJFILE name the object-file output OBJFILE (default a.out)\n")); |
368 | fprintf (stream, _("\ | |
369 | -R fold data section into text section\n")); | |
370 | fprintf (stream, _("\ | |
4bdd3565 NC |
371 | --reduce-memory-overheads \n\ |
372 | prefer smaller memory use at the cost of longer\n\ | |
373 | assembly times\n")); | |
374 | fprintf (stream, _("\ | |
4c63da97 AM |
375 | --statistics print various measured statistics from execution\n")); |
376 | fprintf (stream, _("\ | |
377 | --strip-local-absolute strip local absolute symbols\n")); | |
378 | fprintf (stream, _("\ | |
379 | --traditional-format Use same format as native assembler when possible\n")); | |
380 | fprintf (stream, _("\ | |
381 | --version print assembler version number and exit\n")); | |
382 | fprintf (stream, _("\ | |
383 | -W --no-warn suppress warnings\n")); | |
384 | fprintf (stream, _("\ | |
385 | --warn don't suppress warnings\n")); | |
386 | fprintf (stream, _("\ | |
387 | --fatal-warnings treat warnings as errors\n")); | |
732f54cd | 388 | #ifdef HAVE_ITBL_CPU |
4c63da97 AM |
389 | fprintf (stream, _("\ |
390 | --itbl INSTTBL extend instruction set to include instructions\n\ | |
391 | matching the specifications defined in file INSTTBL\n")); | |
732f54cd | 392 | #endif |
4c63da97 AM |
393 | fprintf (stream, _("\ |
394 | -w ignored\n")); | |
395 | fprintf (stream, _("\ | |
396 | -X ignored\n")); | |
397 | fprintf (stream, _("\ | |
398 | -Z generate object file even after errors\n")); | |
399 | fprintf (stream, _("\ | |
400 | --listing-lhs-width set the width in words of the output data column of\n\ | |
401 | the listing\n")); | |
402 | fprintf (stream, _("\ | |
403 | --listing-lhs-width2 set the width in words of the continuation lines\n\ | |
404 | of the output data column; ignored if smaller than\n\ | |
405 | the width of the first line\n")); | |
406 | fprintf (stream, _("\ | |
407 | --listing-rhs-width set the max width in characters of the lines from\n\ | |
408 | the source file\n")); | |
409 | fprintf (stream, _("\ | |
410 | --listing-cont-lines set the maximum number of continuation lines used\n\ | |
411 | for the output data column of the listing\n")); | |
a55ff675 | 412 | fprintf (stream, _("\ |
34bca508 | 413 | @FILE read options from FILE\n")); |
4c63da97 AM |
414 | |
415 | md_show_usage (stream); | |
416 | ||
c20f4f8c | 417 | fputc ('\n', stream); |
92f01d61 JM |
418 | |
419 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
420 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); | |
4c63da97 AM |
421 | } |
422 | ||
76b0a8c0 KH |
423 | /* Since it is easy to do here we interpret the special arg "-" |
424 | to mean "use stdin" and we set that argv[] pointing to "". | |
425 | After we have munged argv[], the only things left are source file | |
426 | name(s) and ""(s) denoting stdin. These file names are used | |
427 | (perhaps more than once) later. | |
428 | ||
429 | check for new machine-dep cmdline options in | |
430 | md_parse_option definitions in config/tc-*.c. */ | |
252b5132 RH |
431 | |
432 | static void | |
33948635 | 433 | parse_args (int * pargc, char *** pargv) |
252b5132 | 434 | { |
33948635 NC |
435 | int old_argc; |
436 | int new_argc; | |
437 | char ** old_argv; | |
438 | char ** new_argv; | |
252b5132 RH |
439 | /* Starting the short option string with '-' is for programs that |
440 | expect options and other ARGV-elements in any order and that care about | |
441 | the ordering of the two. We describe each non-option ARGV-element | |
442 | as if it were the argument of an option with character code 1. */ | |
252b5132 | 443 | char *shortopts; |
5a38dc70 | 444 | extern const char *md_shortopts; |
33948635 NC |
445 | static const char std_shortopts[] = |
446 | { | |
30a2b4ef | 447 | '-', 'J', |
252b5132 | 448 | #ifndef WORKING_DOT_WORD |
30a2b4ef KH |
449 | /* -K is not meaningful if .word is not being hacked. */ |
450 | 'K', | |
252b5132 | 451 | #endif |
8f94ae4d | 452 | 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':', |
252b5132 | 453 | #ifndef VMS |
30a2b4ef KH |
454 | /* -v takes an argument on VMS, so we don't make it a generic |
455 | option. */ | |
456 | 'v', | |
252b5132 | 457 | #endif |
30a2b4ef | 458 | 'w', 'X', |
732f54cd | 459 | #ifdef HAVE_ITBL_CPU |
33948635 | 460 | /* New option for extending instruction set (see also --itbl below). */ |
30a2b4ef | 461 | 't', ':', |
732f54cd | 462 | #endif |
30a2b4ef KH |
463 | '\0' |
464 | }; | |
252b5132 RH |
465 | struct option *longopts; |
466 | extern struct option md_longopts[]; | |
467 | extern size_t md_longopts_size; | |
33948635 NC |
468 | /* Codes used for the long options with no short synonyms. */ |
469 | enum option_values | |
470 | { | |
471 | OPTION_HELP = OPTION_STD_BASE, | |
472 | OPTION_NOCPP, | |
473 | OPTION_STATISTICS, | |
474 | OPTION_VERSION, | |
475 | OPTION_DUMPCONFIG, | |
476 | OPTION_VERBOSE, | |
477 | OPTION_EMULATION, | |
3d6b762c | 478 | OPTION_DEBUG_PREFIX_MAP, |
33948635 | 479 | OPTION_DEFSYM, |
33948635 NC |
480 | OPTION_LISTING_LHS_WIDTH, |
481 | OPTION_LISTING_LHS_WIDTH2, | |
482 | OPTION_LISTING_RHS_WIDTH, | |
483 | OPTION_LISTING_CONT_LINES, | |
484 | OPTION_DEPFILE, | |
485 | OPTION_GSTABS, | |
05da4302 | 486 | OPTION_GSTABS_PLUS, |
329e276d | 487 | OPTION_GDWARF2, |
b40bf0a2 | 488 | OPTION_GDWARF_SECTIONS, |
66f8b2cb | 489 | OPTION_GDWARF_CIE_VERSION, |
33948635 NC |
490 | OPTION_STRIP_LOCAL_ABSOLUTE, |
491 | OPTION_TRADITIONAL_FORMAT, | |
33948635 NC |
492 | OPTION_WARN, |
493 | OPTION_TARGET_HELP, | |
494 | OPTION_EXECSTACK, | |
495 | OPTION_NOEXECSTACK, | |
21be61f5 | 496 | OPTION_SIZE_CHECK, |
b8871f35 | 497 | OPTION_ELF_STT_COMMON, |
0df8ad28 | 498 | OPTION_ELF_BUILD_NOTES, |
451133ce | 499 | OPTION_SECTNAME_SUBST, |
caa32fe5 | 500 | OPTION_ALTERNATE, |
5a14ab23 | 501 | OPTION_AL, |
4bdd3565 NC |
502 | OPTION_HASH_TABLE_SIZE, |
503 | OPTION_REDUCE_MEMORY_OVERHEADS, | |
0acf065b CC |
504 | OPTION_WARN_FATAL, |
505 | OPTION_COMPRESS_DEBUG, | |
2edb36e7 NC |
506 | OPTION_NOCOMPRESS_DEBUG, |
507 | OPTION_NO_PAD_SECTIONS /* = STD_BASE + 40 */ | |
329e276d NC |
508 | /* When you add options here, check that they do |
509 | not collide with OPTION_MD_BASE. See as.h. */ | |
33948635 | 510 | }; |
34bca508 | 511 | |
33948635 NC |
512 | static const struct option std_longopts[] = |
513 | { | |
329e276d | 514 | /* Note: commas are placed at the start of the line rather than |
cc643b88 | 515 | the end of the preceding line so that it is simpler to |
329e276d NC |
516 | selectively add and remove lines from this list. */ |
517 | {"alternate", no_argument, NULL, OPTION_ALTERNATE} | |
fb767913 NC |
518 | /* The entry for "a" is here to prevent getopt_long_only() from |
519 | considering that -a is an abbreviation for --alternate. This is | |
520 | necessary because -a=<FILE> is a valid switch but getopt would | |
521 | normally reject it since --alternate does not take an argument. */ | |
522 | ,{"a", optional_argument, NULL, 'a'} | |
5a14ab23 L |
523 | /* Handle -al=<FILE>. */ |
524 | ,{"al", optional_argument, NULL, OPTION_AL} | |
151411f8 | 525 | ,{"compress-debug-sections", optional_argument, NULL, OPTION_COMPRESS_DEBUG} |
0acf065b | 526 | ,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG} |
3d6b762c | 527 | ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP} |
329e276d NC |
528 | ,{"defsym", required_argument, NULL, OPTION_DEFSYM} |
529 | ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG} | |
530 | ,{"emulation", required_argument, NULL, OPTION_EMULATION} | |
7be1c489 | 531 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
329e276d NC |
532 | ,{"execstack", no_argument, NULL, OPTION_EXECSTACK} |
533 | ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK} | |
21be61f5 | 534 | ,{"size-check", required_argument, NULL, OPTION_SIZE_CHECK} |
b8871f35 | 535 | ,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON} |
451133ce | 536 | ,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST} |
0df8ad28 | 537 | ,{"generate-missing-build-notes", required_argument, NULL, OPTION_ELF_BUILD_NOTES} |
329e276d NC |
538 | #endif |
539 | ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL} | |
540 | ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2} | |
541 | /* GCC uses --gdwarf-2 but GAS uses to use --gdwarf2, | |
542 | so we keep it here for backwards compatibility. */ | |
543 | ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2} | |
b40bf0a2 | 544 | ,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS} |
66f8b2cb | 545 | ,{"gdwarf-cie-version", required_argument, NULL, OPTION_GDWARF_CIE_VERSION} |
329e276d NC |
546 | ,{"gen-debug", no_argument, NULL, 'g'} |
547 | ,{"gstabs", no_argument, NULL, OPTION_GSTABS} | |
548 | ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS} | |
4bdd3565 | 549 | ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE} |
329e276d | 550 | ,{"help", no_argument, NULL, OPTION_HELP} |
732f54cd | 551 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
552 | /* New option for extending instruction set (see also -t above). |
553 | The "-t file" or "--itbl file" option extends the basic set of | |
554 | valid instructions by reading "file", a text file containing a | |
555 | list of instruction formats. The additional opcodes and their | |
556 | formats are added to the built-in set of instructions, and | |
557 | mnemonics for new registers may also be defined. */ | |
732f54cd JB |
558 | ,{"itbl", required_argument, NULL, 't'} |
559 | #endif | |
329e276d NC |
560 | /* getopt allows abbreviations, so we do this to stop it from |
561 | treating -k as an abbreviation for --keep-locals. Some | |
562 | ports use -k to enable PIC assembly. */ | |
563 | ,{"keep-locals", no_argument, NULL, 'L'} | |
564 | ,{"keep-locals", no_argument, NULL, 'L'} | |
565 | ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH} | |
566 | ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2} | |
567 | ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH} | |
568 | ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES} | |
569 | ,{"MD", required_argument, NULL, OPTION_DEPFILE} | |
570 | ,{"mri", no_argument, NULL, 'M'} | |
571 | ,{"nocpp", no_argument, NULL, OPTION_NOCPP} | |
2edb36e7 | 572 | ,{"no-pad-sections", no_argument, NULL, OPTION_NO_PAD_SECTIONS} |
329e276d | 573 | ,{"no-warn", no_argument, NULL, 'W'} |
4bdd3565 | 574 | ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS} |
329e276d NC |
575 | ,{"statistics", no_argument, NULL, OPTION_STATISTICS} |
576 | ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE} | |
577 | ,{"version", no_argument, NULL, OPTION_VERSION} | |
578 | ,{"verbose", no_argument, NULL, OPTION_VERBOSE} | |
579 | ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP} | |
580 | ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT} | |
581 | ,{"warn", no_argument, NULL, OPTION_WARN} | |
252b5132 RH |
582 | }; |
583 | ||
beb2de9b AC |
584 | /* Construct the option lists from the standard list and the target |
585 | dependent list. Include space for an extra NULL option and | |
76b0a8c0 | 586 | always NULL terminate. */ |
252b5132 | 587 | shortopts = concat (std_shortopts, md_shortopts, (char *) NULL); |
1e9cc1c2 NC |
588 | longopts = (struct option *) xmalloc (sizeof (std_longopts) |
589 | + md_longopts_size + sizeof (struct option)); | |
252b5132 | 590 | memcpy (longopts, std_longopts, sizeof (std_longopts)); |
33948635 NC |
591 | memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size); |
592 | memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size, | |
beb2de9b | 593 | 0, sizeof (struct option)); |
252b5132 RH |
594 | |
595 | /* Make a local copy of the old argv. */ | |
596 | old_argc = *pargc; | |
597 | old_argv = *pargv; | |
598 | ||
599 | /* Initialize a new argv that contains no options. */ | |
add39d23 | 600 | new_argv = XNEWVEC (char *, old_argc + 1); |
252b5132 RH |
601 | new_argv[0] = old_argv[0]; |
602 | new_argc = 1; | |
603 | new_argv[new_argc] = NULL; | |
604 | ||
605 | while (1) | |
606 | { | |
607 | /* getopt_long_only is like getopt_long, but '-' as well as '--' can | |
608 | indicate a long option. */ | |
609 | int longind; | |
610 | int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts, | |
611 | &longind); | |
612 | ||
613 | if (optc == -1) | |
614 | break; | |
615 | ||
616 | switch (optc) | |
617 | { | |
618 | default: | |
619 | /* md_parse_option should return 1 if it recognizes optc, | |
620 | 0 if not. */ | |
621 | if (md_parse_option (optc, optarg) != 0) | |
622 | break; | |
623 | /* `-v' isn't included in the general short_opts list, so check for | |
47eebc20 | 624 | it explicitly here before deciding we've gotten a bad argument. */ |
252b5132 RH |
625 | if (optc == 'v') |
626 | { | |
627 | #ifdef VMS | |
628 | /* Telling getopt to treat -v's value as optional can result | |
629 | in it picking up a following filename argument here. The | |
630 | VMS code in md_parse_option can return 0 in that case, | |
631 | but it has no way of pushing the filename argument back. */ | |
632 | if (optarg && *optarg) | |
30a2b4ef | 633 | new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL; |
252b5132 RH |
634 | else |
635 | #else | |
636 | case 'v': | |
637 | #endif | |
638 | case OPTION_VERBOSE: | |
639 | print_version_id (); | |
54cfded0 | 640 | verbose = 1; |
252b5132 RH |
641 | break; |
642 | } | |
329e276d NC |
643 | else |
644 | as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : ""); | |
76b0a8c0 | 645 | /* Fall through. */ |
252b5132 RH |
646 | |
647 | case '?': | |
648 | exit (EXIT_FAILURE); | |
649 | ||
650 | case 1: /* File name. */ | |
651 | if (!strcmp (optarg, "-")) | |
97830986 | 652 | optarg = (char *) ""; |
252b5132 RH |
653 | new_argv[new_argc++] = optarg; |
654 | new_argv[new_argc] = NULL; | |
655 | break; | |
ef99799a | 656 | |
ea20a7da | 657 | case OPTION_TARGET_HELP: |
411863a4 KH |
658 | md_show_usage (stdout); |
659 | exit (EXIT_SUCCESS); | |
252b5132 RH |
660 | |
661 | case OPTION_HELP: | |
662 | show_usage (stdout); | |
663 | exit (EXIT_SUCCESS); | |
664 | ||
665 | case OPTION_NOCPP: | |
666 | break; | |
667 | ||
2edb36e7 NC |
668 | case OPTION_NO_PAD_SECTIONS: |
669 | do_not_pad_sections_to_alignment = 1; | |
670 | break; | |
671 | ||
252b5132 RH |
672 | case OPTION_STATISTICS: |
673 | flag_print_statistics = 1; | |
674 | break; | |
675 | ||
676 | case OPTION_STRIP_LOCAL_ABSOLUTE: | |
677 | flag_strip_local_absolute = 1; | |
678 | break; | |
679 | ||
680 | case OPTION_TRADITIONAL_FORMAT: | |
681 | flag_traditional_format = 1; | |
682 | break; | |
683 | ||
684 | case OPTION_VERSION: | |
685 | /* This output is intended to follow the GNU standards document. */ | |
6c19f338 | 686 | printf (_("GNU assembler %s\n"), BFD_VERSION_STRING); |
b3adc24a | 687 | printf (_("Copyright (C) 2020 Free Software Foundation, Inc.\n")); |
252b5132 RH |
688 | printf (_("\ |
689 | This program is free software; you may redistribute it under the terms of\n\ | |
ec2655a6 NC |
690 | the GNU General Public License version 3 or later.\n\ |
691 | This program has absolutely no warranty.\n")); | |
9004b6bd AB |
692 | #ifdef TARGET_WITH_CPU |
693 | printf (_("This assembler was configured for a target of `%s' " | |
694 | "and default,\ncpu type `%s'.\n"), | |
695 | TARGET_ALIAS, TARGET_WITH_CPU); | |
696 | #else | |
252b5132 RH |
697 | printf (_("This assembler was configured for a target of `%s'.\n"), |
698 | TARGET_ALIAS); | |
9004b6bd | 699 | #endif |
252b5132 RH |
700 | exit (EXIT_SUCCESS); |
701 | ||
702 | case OPTION_EMULATION: | |
703 | #ifdef USE_EMULATIONS | |
704 | if (strcmp (optarg, this_emulation->name)) | |
705 | as_fatal (_("multiple emulation names specified")); | |
706 | #else | |
707 | as_fatal (_("emulations not handled in this configuration")); | |
708 | #endif | |
709 | break; | |
710 | ||
711 | case OPTION_DUMPCONFIG: | |
712 | fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS); | |
713 | fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL); | |
714 | fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU); | |
715 | #ifdef TARGET_OBJ_FORMAT | |
716 | fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT); | |
717 | #endif | |
718 | #ifdef TARGET_FORMAT | |
719 | fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT); | |
720 | #endif | |
721 | exit (EXIT_SUCCESS); | |
722 | ||
0acf065b | 723 | case OPTION_COMPRESS_DEBUG: |
151411f8 L |
724 | if (optarg) |
725 | { | |
726 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF | |
727 | if (strcasecmp (optarg, "none") == 0) | |
728 | flag_compress_debug = COMPRESS_DEBUG_NONE; | |
729 | else if (strcasecmp (optarg, "zlib") == 0) | |
19a7fe52 | 730 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
151411f8 L |
731 | else if (strcasecmp (optarg, "zlib-gnu") == 0) |
732 | flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB; | |
733 | else if (strcasecmp (optarg, "zlib-gabi") == 0) | |
734 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
735 | else | |
736 | as_fatal (_("Invalid --compress-debug-sections option: `%s'"), | |
737 | optarg); | |
738 | #else | |
739 | as_fatal (_("--compress-debug-sections=%s is unsupported"), | |
740 | optarg); | |
741 | #endif | |
742 | } | |
743 | else | |
19a7fe52 | 744 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
0acf065b CC |
745 | break; |
746 | ||
747 | case OPTION_NOCOMPRESS_DEBUG: | |
151411f8 | 748 | flag_compress_debug = COMPRESS_DEBUG_NONE; |
0acf065b CC |
749 | break; |
750 | ||
3d6b762c JM |
751 | case OPTION_DEBUG_PREFIX_MAP: |
752 | add_debug_prefix_map (optarg); | |
753 | break; | |
754 | ||
252b5132 RH |
755 | case OPTION_DEFSYM: |
756 | { | |
757 | char *s; | |
a38cf1db | 758 | valueT i; |
252b5132 RH |
759 | struct defsym_list *n; |
760 | ||
761 | for (s = optarg; *s != '\0' && *s != '='; s++) | |
762 | ; | |
763 | if (*s == '\0') | |
764 | as_fatal (_("bad defsym; format is --defsym name=value")); | |
765 | *s++ = '\0'; | |
a38cf1db | 766 | i = bfd_scan_vma (s, (const char **) NULL, 0); |
add39d23 | 767 | n = XNEW (struct defsym_list); |
252b5132 RH |
768 | n->next = defsyms; |
769 | n->name = optarg; | |
770 | n->value = i; | |
771 | defsyms = n; | |
772 | } | |
773 | break; | |
774 | ||
732f54cd | 775 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
776 | case 't': |
777 | { | |
76b0a8c0 KH |
778 | /* optarg is the name of the file containing the instruction |
779 | formats, opcodes, register names, etc. */ | |
252b5132 RH |
780 | struct itbl_file_list *n; |
781 | ||
782 | if (optarg == NULL) | |
783 | { | |
0e389e77 | 784 | as_warn (_("no file name following -t option")); |
252b5132 RH |
785 | break; |
786 | } | |
76b0a8c0 | 787 | |
325801bd | 788 | n = XNEW (struct itbl_file_list); |
252b5132 RH |
789 | n->next = itbl_files; |
790 | n->name = optarg; | |
791 | itbl_files = n; | |
792 | ||
793 | /* Parse the file and add the new instructions to our internal | |
76b0a8c0 KH |
794 | table. If multiple instruction tables are specified, the |
795 | information from this table gets appended onto the existing | |
796 | internal table. */ | |
252b5132 RH |
797 | itbl_files->name = xstrdup (optarg); |
798 | if (itbl_parse (itbl_files->name) != 0) | |
0e389e77 AM |
799 | as_fatal (_("failed to read instruction table %s\n"), |
800 | itbl_files->name); | |
252b5132 RH |
801 | } |
802 | break; | |
732f54cd | 803 | #endif |
252b5132 RH |
804 | |
805 | case OPTION_DEPFILE: | |
806 | start_dependencies (optarg); | |
807 | break; | |
808 | ||
329e276d | 809 | case 'g': |
8f94ae4d NC |
810 | /* Some backends, eg Alpha and Mips, use the -g switch for their |
811 | own purposes. So we check here for an explicit -g and allow | |
329e276d NC |
812 | the backend to decide if it wants to process it. */ |
813 | if ( old_argv[optind - 1][1] == 'g' | |
329e276d NC |
814 | && md_parse_option (optc, optarg)) |
815 | continue; | |
816 | ||
817 | if (md_debug_format_selector) | |
818 | debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions); | |
819 | else if (IS_ELF) | |
820 | debug_type = DEBUG_DWARF2; | |
821 | else | |
822 | debug_type = DEBUG_STABS; | |
823 | break; | |
824 | ||
05da4302 NC |
825 | case OPTION_GSTABS_PLUS: |
826 | use_gnu_debug_info_extensions = 1; | |
827 | /* Fall through. */ | |
252b5132 RH |
828 | case OPTION_GSTABS: |
829 | debug_type = DEBUG_STABS; | |
830 | break; | |
76b0a8c0 | 831 | |
fac0d250 RH |
832 | case OPTION_GDWARF2: |
833 | debug_type = DEBUG_DWARF2; | |
834 | break; | |
835 | ||
b40bf0a2 NC |
836 | case OPTION_GDWARF_SECTIONS: |
837 | flag_dwarf_sections = TRUE; | |
838 | break; | |
839 | ||
66f8b2cb AB |
840 | case OPTION_GDWARF_CIE_VERSION: |
841 | flag_dwarf_cie_version = atoi (optarg); | |
842 | /* The available CIE versions are 1 (DWARF 2), 3 (DWARF 3), and 4 | |
843 | (DWARF 4 and 5). */ | |
844 | if (flag_dwarf_cie_version < 1 | |
845 | || flag_dwarf_cie_version == 2 | |
846 | || flag_dwarf_cie_version > 4) | |
847 | as_fatal (_("Invalid --gdwarf-cie-version `%s'"), optarg); | |
848 | break; | |
849 | ||
252b5132 RH |
850 | case 'J': |
851 | flag_signed_overflow_ok = 1; | |
852 | break; | |
853 | ||
854 | #ifndef WORKING_DOT_WORD | |
855 | case 'K': | |
856 | flag_warn_displacement = 1; | |
857 | break; | |
858 | #endif | |
252b5132 RH |
859 | case 'L': |
860 | flag_keep_locals = 1; | |
861 | break; | |
862 | ||
863 | case OPTION_LISTING_LHS_WIDTH: | |
76b0a8c0 | 864 | listing_lhs_width = atoi (optarg); |
252b5132 RH |
865 | if (listing_lhs_width_second < listing_lhs_width) |
866 | listing_lhs_width_second = listing_lhs_width; | |
867 | break; | |
868 | case OPTION_LISTING_LHS_WIDTH2: | |
869 | { | |
76b0a8c0 | 870 | int tmp = atoi (optarg); |
329e276d | 871 | |
252b5132 RH |
872 | if (tmp > listing_lhs_width) |
873 | listing_lhs_width_second = tmp; | |
874 | } | |
875 | break; | |
876 | case OPTION_LISTING_RHS_WIDTH: | |
76b0a8c0 | 877 | listing_rhs_width = atoi (optarg); |
252b5132 RH |
878 | break; |
879 | case OPTION_LISTING_CONT_LINES: | |
76b0a8c0 | 880 | listing_lhs_cont_lines = atoi (optarg); |
252b5132 RH |
881 | break; |
882 | ||
883 | case 'M': | |
884 | flag_mri = 1; | |
885 | #ifdef TC_M68K | |
886 | flag_m68k_mri = 1; | |
887 | #endif | |
888 | break; | |
889 | ||
890 | case 'R': | |
891 | flag_readonly_data_in_text = 1; | |
892 | break; | |
893 | ||
894 | case 'W': | |
895 | flag_no_warnings = 1; | |
896 | break; | |
897 | ||
2bdd6cf5 GK |
898 | case OPTION_WARN: |
899 | flag_no_warnings = 0; | |
900 | flag_fatal_warnings = 0; | |
901 | break; | |
902 | ||
903 | case OPTION_WARN_FATAL: | |
904 | flag_no_warnings = 0; | |
905 | flag_fatal_warnings = 1; | |
906 | break; | |
907 | ||
7be1c489 | 908 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
909 | case OPTION_EXECSTACK: |
910 | flag_execstack = 1; | |
911 | flag_noexecstack = 0; | |
912 | break; | |
913 | ||
914 | case OPTION_NOEXECSTACK: | |
915 | flag_noexecstack = 1; | |
916 | flag_execstack = 0; | |
917 | break; | |
21be61f5 L |
918 | |
919 | case OPTION_SIZE_CHECK: | |
920 | if (strcasecmp (optarg, "error") == 0) | |
a90fb5e3 | 921 | flag_allow_nonconst_size = FALSE; |
21be61f5 | 922 | else if (strcasecmp (optarg, "warning") == 0) |
a90fb5e3 | 923 | flag_allow_nonconst_size = TRUE; |
21be61f5 L |
924 | else |
925 | as_fatal (_("Invalid --size-check= option: `%s'"), optarg); | |
926 | break; | |
451133ce | 927 | |
b8871f35 L |
928 | case OPTION_ELF_STT_COMMON: |
929 | if (strcasecmp (optarg, "no") == 0) | |
930 | flag_use_elf_stt_common = 0; | |
931 | else if (strcasecmp (optarg, "yes") == 0) | |
932 | flag_use_elf_stt_common = 1; | |
933 | else | |
934 | as_fatal (_("Invalid --elf-stt-common= option: `%s'"), | |
935 | optarg); | |
936 | break; | |
937 | ||
451133ce NP |
938 | case OPTION_SECTNAME_SUBST: |
939 | flag_sectname_subst = 1; | |
940 | break; | |
0df8ad28 NC |
941 | |
942 | case OPTION_ELF_BUILD_NOTES: | |
943 | if (strcasecmp (optarg, "no") == 0) | |
944 | flag_generate_build_notes = FALSE; | |
945 | else if (strcasecmp (optarg, "yes") == 0) | |
946 | flag_generate_build_notes = TRUE; | |
947 | else | |
948 | as_fatal (_("Invalid --generate-missing-build-notes option: `%s'"), | |
949 | optarg); | |
950 | break; | |
951 | ||
952 | #endif /* OBJ_ELF */ | |
953 | ||
252b5132 RH |
954 | case 'Z': |
955 | flag_always_generate_output = 1; | |
956 | break; | |
957 | ||
5a14ab23 L |
958 | case OPTION_AL: |
959 | listing |= LISTING_LISTING; | |
960 | if (optarg) | |
961 | listing_filename = xstrdup (optarg); | |
962 | break; | |
963 | ||
caa32fe5 NC |
964 | case OPTION_ALTERNATE: |
965 | optarg = old_argv [optind - 1]; | |
966 | while (* optarg == '-') | |
967 | optarg ++; | |
968 | ||
969 | if (strcmp (optarg, "alternate") == 0) | |
970 | { | |
971 | flag_macro_alternate = 1; | |
972 | break; | |
973 | } | |
974 | optarg ++; | |
975 | /* Fall through. */ | |
976 | ||
252b5132 RH |
977 | case 'a': |
978 | if (optarg) | |
979 | { | |
fb767913 NC |
980 | if (optarg != old_argv[optind] && optarg[-1] == '=') |
981 | --optarg; | |
982 | ||
7f6d05e8 CP |
983 | if (md_parse_option (optc, optarg) != 0) |
984 | break; | |
985 | ||
252b5132 RH |
986 | while (*optarg) |
987 | { | |
988 | switch (*optarg) | |
989 | { | |
990 | case 'c': | |
991 | listing |= LISTING_NOCOND; | |
992 | break; | |
993 | case 'd': | |
994 | listing |= LISTING_NODEBUG; | |
995 | break; | |
83f10cb2 NC |
996 | case 'g': |
997 | listing |= LISTING_GENERAL; | |
998 | break; | |
252b5132 RH |
999 | case 'h': |
1000 | listing |= LISTING_HLL; | |
1001 | break; | |
1002 | case 'l': | |
1003 | listing |= LISTING_LISTING; | |
1004 | break; | |
1005 | case 'm': | |
1006 | listing |= LISTING_MACEXP; | |
1007 | break; | |
1008 | case 'n': | |
1009 | listing |= LISTING_NOFORM; | |
1010 | break; | |
1011 | case 's': | |
1012 | listing |= LISTING_SYMBOLS; | |
1013 | break; | |
1014 | case '=': | |
1015 | listing_filename = xstrdup (optarg + 1); | |
1016 | optarg += strlen (listing_filename); | |
1017 | break; | |
1018 | default: | |
1019 | as_fatal (_("invalid listing option `%c'"), *optarg); | |
1020 | break; | |
1021 | } | |
1022 | optarg++; | |
1023 | } | |
1024 | } | |
1025 | if (!listing) | |
1026 | listing = LISTING_DEFAULT; | |
1027 | break; | |
1028 | ||
1029 | case 'D': | |
76b0a8c0 KH |
1030 | /* DEBUG is implemented: it debugs different |
1031 | things from other people's assemblers. */ | |
252b5132 RH |
1032 | flag_debug = 1; |
1033 | break; | |
1034 | ||
1035 | case 'f': | |
1036 | flag_no_comments = 1; | |
1037 | break; | |
1038 | ||
1039 | case 'I': | |
76b0a8c0 | 1040 | { /* Include file directory. */ |
252b5132 | 1041 | char *temp = xstrdup (optarg); |
329e276d | 1042 | |
252b5132 RH |
1043 | add_include_dir (temp); |
1044 | break; | |
1045 | } | |
1046 | ||
1047 | case 'o': | |
1048 | out_file_name = xstrdup (optarg); | |
1049 | break; | |
1050 | ||
1051 | case 'w': | |
1052 | break; | |
1053 | ||
1054 | case 'X': | |
76b0a8c0 | 1055 | /* -X means treat warnings as errors. */ |
252b5132 | 1056 | break; |
4bdd3565 NC |
1057 | |
1058 | case OPTION_REDUCE_MEMORY_OVERHEADS: | |
1059 | /* The only change we make at the moment is to reduce | |
1060 | the size of the hash tables that we use. */ | |
1061 | set_gas_hash_table_size (4051); | |
1062 | break; | |
1063 | ||
1064 | case OPTION_HASH_TABLE_SIZE: | |
1065 | { | |
f7a568ea | 1066 | unsigned long new_size; |
4bdd3565 NC |
1067 | |
1068 | new_size = strtoul (optarg, NULL, 0); | |
1069 | if (new_size) | |
1070 | set_gas_hash_table_size (new_size); | |
1071 | else | |
1072 | as_fatal (_("--hash-size needs a numeric argument")); | |
1073 | break; | |
1074 | } | |
252b5132 RH |
1075 | } |
1076 | } | |
1077 | ||
1078 | free (shortopts); | |
1079 | free (longopts); | |
1080 | ||
1081 | *pargc = new_argc; | |
1082 | *pargv = new_argv; | |
acebd4ce AS |
1083 | |
1084 | #ifdef md_after_parse_args | |
1085 | md_after_parse_args (); | |
1086 | #endif | |
252b5132 RH |
1087 | } |
1088 | ||
33948635 NC |
1089 | static void |
1090 | dump_statistics (void) | |
1091 | { | |
33948635 NC |
1092 | long run_time = get_run_time () - start_time; |
1093 | ||
1094 | fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"), | |
1095 | myname, run_time / 1000000, run_time % 1000000); | |
252b5132 | 1096 | |
33948635 NC |
1097 | subsegs_print_statistics (stderr); |
1098 | write_print_statistics (stderr); | |
1099 | symbol_print_statistics (stderr); | |
1100 | read_print_statistics (stderr); | |
1101 | ||
1102 | #ifdef tc_print_statistics | |
1103 | tc_print_statistics (stderr); | |
1104 | #endif | |
1105 | ||
1106 | #ifdef obj_print_statistics | |
1107 | obj_print_statistics (stderr); | |
1108 | #endif | |
1109 | } | |
1110 | ||
0d474464 L |
1111 | static void |
1112 | close_output_file (void) | |
1113 | { | |
1114 | output_file_close (out_file_name); | |
58e8191c SA |
1115 | if (!keep_it) |
1116 | unlink_if_ordinary (out_file_name); | |
0d474464 | 1117 | } |
0d474464 | 1118 | |
33948635 NC |
1119 | /* The interface between the macro code and gas expression handling. */ |
1120 | ||
39a45edc AM |
1121 | static size_t |
1122 | macro_expr (const char *emsg, size_t idx, sb *in, offsetT *val) | |
33948635 | 1123 | { |
33948635 NC |
1124 | expressionS ex; |
1125 | ||
1126 | sb_terminate (in); | |
1127 | ||
af60449c | 1128 | temp_ilp (in->ptr + idx); |
9497f5ac | 1129 | expression_and_evaluate (&ex); |
33948635 | 1130 | idx = input_line_pointer - in->ptr; |
af60449c | 1131 | restore_ilp (); |
33948635 NC |
1132 | |
1133 | if (ex.X_op != O_constant) | |
1134 | as_bad ("%s", emsg); | |
1135 | ||
39a45edc | 1136 | *val = ex.X_add_number; |
33948635 NC |
1137 | |
1138 | return idx; | |
1139 | } | |
1140 | \f | |
1141 | /* Here to attempt 1 pass over each input file. | |
1142 | We scan argv[*] looking for filenames or exactly "" which is | |
1143 | shorthand for stdin. Any argv that is NULL is not a file-name. | |
1144 | We set need_pass_2 TRUE if, after this, we still have unresolved | |
1145 | expressions of the form (unknown value)+-(unknown value). | |
1146 | ||
1147 | Note the un*x semantics: there is only 1 logical input file, but it | |
1148 | may be a catenation of many 'physical' input files. */ | |
1149 | ||
1150 | static void | |
1151 | perform_an_assembly_pass (int argc, char ** argv) | |
1152 | { | |
1153 | int saw_a_file = 0; | |
bcf0aac6 | 1154 | #ifndef OBJ_MACH_O |
33948635 | 1155 | flagword applicable; |
bcf0aac6 | 1156 | #endif |
33948635 NC |
1157 | |
1158 | need_pass_2 = 0; | |
1159 | ||
bcf0aac6 | 1160 | #ifndef OBJ_MACH_O |
33948635 NC |
1161 | /* Create the standard sections, and those the assembler uses |
1162 | internally. */ | |
1163 | text_section = subseg_new (TEXT_SECTION_NAME, 0); | |
1164 | data_section = subseg_new (DATA_SECTION_NAME, 0); | |
1165 | bss_section = subseg_new (BSS_SECTION_NAME, 0); | |
1166 | /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed | |
1167 | to have relocs, otherwise we don't find out in time. */ | |
1168 | applicable = bfd_applicable_section_flags (stdoutput); | |
fd361982 | 1169 | bfd_set_section_flags (text_section, |
33948635 NC |
1170 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
1171 | | SEC_CODE | SEC_READONLY)); | |
fd361982 | 1172 | bfd_set_section_flags (data_section, |
33948635 NC |
1173 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
1174 | | SEC_DATA)); | |
fd361982 | 1175 | bfd_set_section_flags (bss_section, applicable & SEC_ALLOC); |
33948635 | 1176 | seg_info (bss_section)->bss = 1; |
bcf0aac6 | 1177 | #endif |
33948635 NC |
1178 | subseg_new (BFD_ABS_SECTION_NAME, 0); |
1179 | subseg_new (BFD_UND_SECTION_NAME, 0); | |
1180 | reg_section = subseg_new ("*GAS `reg' section*", 0); | |
1181 | expr_section = subseg_new ("*GAS `expr' section*", 0); | |
1182 | ||
bcf0aac6 | 1183 | #ifndef OBJ_MACH_O |
33948635 | 1184 | subseg_set (text_section, 0); |
bcf0aac6 | 1185 | #endif |
33948635 NC |
1186 | |
1187 | /* This may add symbol table entries, which requires having an open BFD, | |
7be1c489 | 1188 | and sections already created. */ |
33948635 NC |
1189 | md_begin (); |
1190 | ||
1191 | #ifdef USING_CGEN | |
1192 | gas_cgen_begin (); | |
1193 | #endif | |
1194 | #ifdef obj_begin | |
1195 | obj_begin (); | |
1196 | #endif | |
1197 | ||
1198 | /* Skip argv[0]. */ | |
1199 | argv++; | |
1200 | argc--; | |
1201 | ||
1202 | while (argc--) | |
1203 | { | |
1204 | if (*argv) | |
1205 | { /* Is it a file-name argument? */ | |
1206 | PROGRESS (1); | |
1207 | saw_a_file++; | |
1208 | /* argv->"" if stdin desired, else->filename. */ | |
1209 | read_a_source_file (*argv); | |
1210 | } | |
1211 | argv++; /* Completed that argv. */ | |
1212 | } | |
1213 | if (!saw_a_file) | |
1214 | read_a_source_file (""); | |
1215 | } | |
1216 | \f | |
a80076a1 | 1217 | |
76b0a8c0 | 1218 | int |
33948635 | 1219 | main (int argc, char ** argv) |
252b5132 | 1220 | { |
83f10cb2 | 1221 | char ** argv_orig = argv; |
67f846b5 | 1222 | struct stat sob; |
83f10cb2 | 1223 | |
252b5132 | 1224 | int macro_strip_at; |
252b5132 RH |
1225 | |
1226 | start_time = get_run_time (); | |
1ec4b9f2 | 1227 | signal_init (); |
252b5132 RH |
1228 | |
1229 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
1230 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
1231 | #endif |
1232 | #if defined (HAVE_SETLOCALE) | |
1233 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
1234 | #endif |
1235 | bindtextdomain (PACKAGE, LOCALEDIR); | |
1236 | textdomain (PACKAGE); | |
1237 | ||
1238 | if (debug_memory) | |
091e58c1 | 1239 | chunksize = 64; |
252b5132 RH |
1240 | |
1241 | #ifdef HOST_SPECIAL_INIT | |
1242 | HOST_SPECIAL_INIT (argc, argv); | |
1243 | #endif | |
1244 | ||
1245 | myname = argv[0]; | |
1246 | xmalloc_set_program_name (myname); | |
1247 | ||
869b9d07 MM |
1248 | expandargv (&argc, &argv); |
1249 | ||
252b5132 RH |
1250 | START_PROGRESS (myname, 0); |
1251 | ||
1252 | #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME | |
1253 | #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out" | |
1254 | #endif | |
1255 | ||
1256 | out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; | |
1257 | ||
1258 | hex_init (); | |
bf2dd8d7 AM |
1259 | if (bfd_init () != BFD_INIT_MAGIC) |
1260 | as_fatal (_("libbfd ABI mismatch")); | |
252b5132 | 1261 | bfd_set_error_program_name (myname); |
252b5132 RH |
1262 | |
1263 | #ifdef USE_EMULATIONS | |
1264 | select_emulation_mode (argc, argv); | |
1265 | #endif | |
1266 | ||
1267 | PROGRESS (1); | |
f7a568ea NC |
1268 | /* Call parse_args before any of the init/begin functions |
1269 | so that switches like --hash-size can be honored. */ | |
1270 | parse_args (&argc, &argv); | |
67f846b5 JD |
1271 | |
1272 | if (argc > 1 && stat (out_file_name, &sob) == 0) | |
1273 | { | |
1274 | int i; | |
1275 | ||
1276 | for (i = 1; i < argc; ++i) | |
1277 | { | |
1278 | struct stat sib; | |
1279 | ||
2a50366d RY |
1280 | /* Check that the input file and output file are different. */ |
1281 | if (stat (argv[i], &sib) == 0 | |
1282 | && sib.st_ino == sob.st_ino | |
1283 | /* POSIX emulating systems may support stat() but if the | |
1284 | underlying file system does not support a file serial number | |
1285 | of some kind then they will return 0 for the inode. So | |
1286 | two files with an inode of 0 may not actually be the same. | |
1287 | On real POSIX systems no ordinary file will ever have an | |
1288 | inode of 0. */ | |
1289 | && sib.st_ino != 0 | |
1290 | /* Different files may have the same inode number if they | |
1291 | reside on different devices, so check the st_dev field as | |
1292 | well. */ | |
1293 | && sib.st_dev == sob.st_dev) | |
67f846b5 | 1294 | { |
2a50366d RY |
1295 | const char *saved_out_file_name = out_file_name; |
1296 | ||
1297 | /* Don't let as_fatal remove the output file! */ | |
1298 | out_file_name = NULL; | |
1299 | as_fatal (_("The input '%s' and output '%s' files are the same"), | |
1300 | argv[i], saved_out_file_name); | |
67f846b5 JD |
1301 | } |
1302 | } | |
1303 | } | |
1304 | ||
252b5132 RH |
1305 | symbol_begin (); |
1306 | frag_init (); | |
1307 | subsegs_begin (); | |
252b5132 RH |
1308 | read_begin (); |
1309 | input_scrub_begin (); | |
1310 | expr_begin (); | |
1311 | ||
0d474464 L |
1312 | /* It has to be called after dump_statistics (). */ |
1313 | xatexit (close_output_file); | |
0d474464 | 1314 | |
252b5132 RH |
1315 | if (flag_print_statistics) |
1316 | xatexit (dump_statistics); | |
1317 | ||
252b5132 RH |
1318 | macro_strip_at = 0; |
1319 | #ifdef TC_I960 | |
1320 | macro_strip_at = flag_mri; | |
1321 | #endif | |
252b5132 | 1322 | |
caa32fe5 | 1323 | macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr); |
252b5132 RH |
1324 | |
1325 | PROGRESS (1); | |
1326 | ||
252b5132 | 1327 | output_file_create (out_file_name); |
9c2799c2 | 1328 | gas_assert (stdoutput != 0); |
252b5132 | 1329 | |
4a826962 MR |
1330 | dot_symbol_init (); |
1331 | ||
252b5132 RH |
1332 | #ifdef tc_init_after_args |
1333 | tc_init_after_args (); | |
1334 | #endif | |
1335 | ||
1336 | itbl_init (); | |
1337 | ||
1e9cc1c2 NC |
1338 | dwarf2_init (); |
1339 | ||
6885131b AM |
1340 | local_symbol_make (".gasversion.", absolute_section, |
1341 | BFD_VERSION / 10000UL, &predefined_address_frag); | |
00ce9deb | 1342 | |
252b5132 RH |
1343 | /* Now that we have fully initialized, and have created the output |
1344 | file, define any symbols requested by --defsym command line | |
1345 | arguments. */ | |
1346 | while (defsyms != NULL) | |
1347 | { | |
1348 | symbolS *sym; | |
1349 | struct defsym_list *next; | |
1350 | ||
1351 | sym = symbol_new (defsyms->name, absolute_section, defsyms->value, | |
1352 | &zero_address_frag); | |
bf083c64 NC |
1353 | /* Make symbols defined on the command line volatile, so that they |
1354 | can be redefined inside a source file. This makes this assembler's | |
1355 | behaviour compatible with earlier versions, but it may not be | |
1356 | completely intuitive. */ | |
1357 | S_SET_VOLATILE (sym); | |
252b5132 RH |
1358 | symbol_table_insert (sym); |
1359 | next = defsyms->next; | |
1360 | free (defsyms); | |
1361 | defsyms = next; | |
1362 | } | |
1363 | ||
1364 | PROGRESS (1); | |
1365 | ||
76b0a8c0 KH |
1366 | /* Assemble it. */ |
1367 | perform_an_assembly_pass (argc, argv); | |
252b5132 RH |
1368 | |
1369 | cond_finish_check (-1); | |
1370 | ||
1371 | #ifdef md_end | |
1372 | md_end (); | |
1373 | #endif | |
104d59d1 | 1374 | |
7be1c489 | 1375 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
1376 | if ((flag_execstack || flag_noexecstack) |
1377 | && OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
1378 | { | |
1379 | segT gnustack; | |
1380 | ||
1381 | gnustack = subseg_new (".note.GNU-stack", 0); | |
fd361982 | 1382 | bfd_set_section_flags (gnustack, |
68d55fe3 | 1383 | SEC_READONLY | (flag_execstack ? SEC_CODE : 0)); |
34bca508 | 1384 | |
68d55fe3 JJ |
1385 | } |
1386 | #endif | |
1387 | ||
43ad3147 | 1388 | /* If we've been collecting dwarf2 .debug_line info, either for |
39bb5fe6 RH |
1389 | assembly debugging or on behalf of the compiler, emit it now. */ |
1390 | dwarf2_finish (); | |
1391 | ||
34bca508 | 1392 | /* If we constructed dwarf2 .eh_frame info, either via .cfi |
a4447b93 | 1393 | directives from the user or by the backend, emit it now. */ |
54cfded0 | 1394 | cfi_finish (); |
54cfded0 | 1395 | |
85024cd8 AM |
1396 | keep_it = 0; |
1397 | if (seen_at_least_1_file ()) | |
1398 | { | |
1399 | int n_warns, n_errs; | |
1400 | char warn_msg[50]; | |
1401 | char err_msg[50]; | |
1402 | ||
1403 | write_object_file (); | |
1404 | ||
1405 | n_warns = had_warnings (); | |
1406 | n_errs = had_errors (); | |
1407 | ||
992a06ee AM |
1408 | sprintf (warn_msg, |
1409 | ngettext ("%d warning", "%d warnings", n_warns), n_warns); | |
1410 | sprintf (err_msg, | |
1411 | ngettext ("%d error", "%d errors", n_errs), n_errs); | |
85024cd8 AM |
1412 | if (flag_fatal_warnings && n_warns != 0) |
1413 | { | |
1414 | if (n_errs == 0) | |
1415 | as_bad (_("%s, treating warnings as errors"), warn_msg); | |
1416 | n_errs += n_warns; | |
1417 | } | |
252b5132 | 1418 | |
85024cd8 AM |
1419 | if (n_errs == 0) |
1420 | keep_it = 1; | |
1421 | else if (flag_always_generate_output) | |
1422 | { | |
1423 | /* The -Z flag indicates that an object file should be generated, | |
1424 | regardless of warnings and errors. */ | |
1425 | keep_it = 1; | |
1426 | fprintf (stderr, _("%s, %s, generating bad object file\n"), | |
1427 | err_msg, warn_msg); | |
1428 | } | |
1429 | } | |
252b5132 | 1430 | |
7f6a71ff JM |
1431 | fflush (stderr); |
1432 | ||
252b5132 | 1433 | #ifndef NO_LISTING |
83f10cb2 | 1434 | listing_print (listing_filename, argv_orig); |
252b5132 RH |
1435 | #endif |
1436 | ||
252b5132 RH |
1437 | input_scrub_end (); |
1438 | ||
1439 | END_PROGRESS (myname); | |
1440 | ||
1441 | /* Use xexit instead of return, because under VMS environments they | |
1442 | may not place the same interpretation on the value given. */ | |
85024cd8 | 1443 | if (had_errors () != 0) |
252b5132 RH |
1444 | xexit (EXIT_FAILURE); |
1445 | ||
1446 | /* Only generate dependency file if assembler was successful. */ | |
1447 | print_dependencies (); | |
1448 | ||
1449 | xexit (EXIT_SUCCESS); | |
1450 | } |