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 | |
31bf1864 NC |
105 | /* The maximum level of DWARF DEBUG information we should manufacture. */ |
106 | unsigned int dwarf_level = 0; | |
107 | ||
b8871f35 L |
108 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
109 | int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON; | |
0df8ad28 | 110 | bfd_boolean flag_generate_build_notes = DEFAULT_GENERATE_BUILD_NOTES; |
b8871f35 L |
111 | #endif |
112 | ||
58e8191c | 113 | /* Keep the output file. */ |
85024cd8 | 114 | static int keep_it = 0; |
58e8191c | 115 | |
33948635 NC |
116 | segT reg_section; |
117 | segT expr_section; | |
118 | segT text_section; | |
119 | segT data_section; | |
120 | segT bss_section; | |
252b5132 | 121 | |
33948635 NC |
122 | /* Name of listing file. */ |
123 | static char *listing_filename = NULL; | |
252b5132 RH |
124 | |
125 | static struct defsym_list *defsyms; | |
126 | ||
732f54cd JB |
127 | #ifdef HAVE_ITBL_CPU |
128 | /* Keep a record of the itbl files we read in. */ | |
129 | struct itbl_file_list | |
130 | { | |
131 | struct itbl_file_list *next; | |
132 | char *name; | |
133 | }; | |
33948635 | 134 | static struct itbl_file_list *itbl_files; |
732f54cd | 135 | #endif |
252b5132 | 136 | |
33948635 | 137 | static long start_time; |
252b5132 | 138 | |
caa32fe5 NC |
139 | static int flag_macro_alternate; |
140 | ||
252b5132 | 141 | \f |
252b5132 RH |
142 | #ifdef USE_EMULATIONS |
143 | #define EMULATION_ENVIRON "AS_EMULATION" | |
144 | ||
145 | extern struct emulation mipsbelf, mipslelf, mipself; | |
4c63da97 | 146 | extern struct emulation i386coff, i386elf, i386aout; |
3bcbcc3d | 147 | extern struct emulation crisaout, criself; |
252b5132 RH |
148 | |
149 | static struct emulation *const emulations[] = { EMULATIONS }; | |
150 | static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]); | |
151 | ||
252b5132 | 152 | static void |
33948635 | 153 | select_emulation_mode (int argc, char **argv) |
252b5132 RH |
154 | { |
155 | int i; | |
e0471c16 TS |
156 | char *p; |
157 | const char *em = NULL; | |
252b5132 RH |
158 | |
159 | for (i = 1; i < argc; i++) | |
160 | if (!strncmp ("--em", argv[i], 4)) | |
161 | break; | |
162 | ||
163 | if (i == argc) | |
164 | goto do_default; | |
165 | ||
166 | p = strchr (argv[i], '='); | |
167 | if (p) | |
168 | p++; | |
169 | else | |
76b0a8c0 | 170 | p = argv[i + 1]; |
252b5132 RH |
171 | |
172 | if (!p || !*p) | |
173 | as_fatal (_("missing emulation mode name")); | |
174 | em = p; | |
175 | ||
176 | do_default: | |
177 | if (em == 0) | |
178 | em = getenv (EMULATION_ENVIRON); | |
179 | if (em == 0) | |
180 | em = DEFAULT_EMULATION; | |
181 | ||
182 | if (em) | |
183 | { | |
184 | for (i = 0; i < n_emulations; i++) | |
185 | if (!strcmp (emulations[i]->name, em)) | |
186 | break; | |
187 | if (i == n_emulations) | |
188 | as_fatal (_("unrecognized emulation name `%s'"), em); | |
189 | this_emulation = emulations[i]; | |
190 | } | |
191 | else | |
192 | this_emulation = emulations[0]; | |
193 | ||
194 | this_emulation->init (); | |
195 | } | |
196 | ||
197 | const char * | |
33948635 | 198 | default_emul_bfd_name (void) |
252b5132 RH |
199 | { |
200 | abort (); | |
201 | return NULL; | |
202 | } | |
203 | ||
204 | void | |
33948635 | 205 | common_emul_init (void) |
252b5132 RH |
206 | { |
207 | this_format = this_emulation->format; | |
208 | ||
209 | if (this_emulation->leading_underscore == 2) | |
210 | this_emulation->leading_underscore = this_format->dfl_leading_underscore; | |
211 | ||
212 | if (this_emulation->default_endian != 2) | |
213 | target_big_endian = this_emulation->default_endian; | |
214 | ||
215 | if (this_emulation->fake_label_name == 0) | |
216 | { | |
217 | if (this_emulation->leading_underscore) | |
2469b3c5 | 218 | this_emulation->fake_label_name = FAKE_LABEL_NAME; |
252b5132 RH |
219 | else |
220 | /* What other parameters should we test? */ | |
2469b3c5 | 221 | this_emulation->fake_label_name = "." FAKE_LABEL_NAME; |
252b5132 RH |
222 | } |
223 | } | |
224 | #endif | |
225 | ||
4c63da97 | 226 | void |
33948635 | 227 | print_version_id (void) |
4c63da97 AM |
228 | { |
229 | static int printed; | |
33948635 | 230 | |
4c63da97 AM |
231 | if (printed) |
232 | return; | |
233 | printed = 1; | |
234 | ||
7be1c489 | 235 | fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"), |
403487ec | 236 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
4c63da97 AM |
237 | } |
238 | ||
e12fe555 NC |
239 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
240 | enum compressed_debug_section_type flag_compress_debug | |
241 | = COMPRESS_DEBUG_GABI_ZLIB; | |
242 | #endif | |
243 | ||
4c63da97 | 244 | static void |
33948635 | 245 | show_usage (FILE * stream) |
4c63da97 AM |
246 | { |
247 | fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname); | |
248 | ||
249 | fprintf (stream, _("\ | |
250 | Options:\n\ | |
251 | -a[sub-option...] turn on listings\n\ | |
252 | Sub-options [default hls]:\n\ | |
253 | c omit false conditionals\n\ | |
254 | d omit debugging directives\n\ | |
83f10cb2 | 255 | g include general info\n\ |
4c63da97 AM |
256 | h include high-level source\n\ |
257 | l include assembly\n\ | |
258 | m include macro expansions\n\ | |
259 | n omit forms processing\n\ | |
260 | s include symbols\n\ | |
4c63da97 AM |
261 | =FILE list to FILE (must be last sub-option)\n")); |
262 | ||
caa32fe5 NC |
263 | fprintf (stream, _("\ |
264 | --alternate initially turn on alternate macro syntax\n")); | |
e12fe555 | 265 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
4c63da97 | 266 | fprintf (stream, _("\ |
151411f8 | 267 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ |
e12fe555 | 268 | compress DWARF debug sections using zlib [default]\n")); |
700c4060 CC |
269 | fprintf (stream, _("\ |
270 | --nocompress-debug-sections\n\ | |
271 | don't compress DWARF debug sections\n")); | |
e12fe555 NC |
272 | #else |
273 | fprintf (stream, _("\ | |
274 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ | |
275 | compress DWARF debug sections using zlib\n")); | |
276 | fprintf (stream, _("\ | |
277 | --nocompress-debug-sections\n\ | |
278 | don't compress DWARF debug sections [default]\n")); | |
279 | #endif | |
700c4060 | 280 | fprintf (stream, _("\ |
4c63da97 AM |
281 | -D produce assembler debugging messages\n")); |
282 | fprintf (stream, _("\ | |
700c4060 CC |
283 | --debug-prefix-map OLD=NEW\n\ |
284 | map OLD to NEW in debug information\n")); | |
3d6b762c | 285 | fprintf (stream, _("\ |
4c63da97 AM |
286 | --defsym SYM=VAL define symbol SYM to given value\n")); |
287 | #ifdef USE_EMULATIONS | |
288 | { | |
289 | int i; | |
e0471c16 | 290 | const char *def_em; |
4c63da97 AM |
291 | |
292 | fprintf (stream, "\ | |
293 | --em=["); | |
76b0a8c0 | 294 | for (i = 0; i < n_emulations - 1; i++) |
4c63da97 AM |
295 | fprintf (stream, "%s | ", emulations[i]->name); |
296 | fprintf (stream, "%s]\n", emulations[i]->name); | |
297 | ||
298 | def_em = getenv (EMULATION_ENVIRON); | |
76b0a8c0 | 299 | if (!def_em) |
4c63da97 AM |
300 | def_em = DEFAULT_EMULATION; |
301 | fprintf (stream, _("\ | |
302 | emulate output (default %s)\n"), def_em); | |
303 | } | |
68d55fe3 | 304 | #endif |
7be1c489 | 305 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
306 | fprintf (stream, _("\ |
307 | --execstack require executable stack for this object\n")); | |
308 | fprintf (stream, _("\ | |
309 | --noexecstack don't require executable stack for this object\n")); | |
21be61f5 L |
310 | fprintf (stream, _("\ |
311 | --size-check=[error|warning]\n\ | |
312 | ELF .size directive check (default --size-check=error)\n")); | |
451133ce | 313 | fprintf (stream, _("\ |
3a53fb12 L |
314 | --elf-stt-common=[no|yes] ")); |
315 | if (DEFAULT_GENERATE_ELF_STT_COMMON) | |
316 | fprintf (stream, _("(default: yes)\n")); | |
317 | else | |
318 | fprintf (stream, _("(default: no)\n")); | |
319 | fprintf (stream, _("\ | |
b8871f35 L |
320 | generate ELF common symbols with STT_COMMON type\n")); |
321 | fprintf (stream, _("\ | |
451133ce | 322 | --sectname-subst enable section name substitution sequences\n")); |
0df8ad28 NC |
323 | |
324 | fprintf (stream, _("\ | |
325 | --generate-missing-build-notes=[no|yes] ")); | |
326 | #if DEFAULT_GENERATE_BUILD_NOTES | |
327 | fprintf (stream, _("(default: yes)\n")); | |
328 | #else | |
329 | fprintf (stream, _("(default: no)\n")); | |
4c63da97 | 330 | #endif |
0df8ad28 NC |
331 | fprintf (stream, _("\ |
332 | generate GNU Build notes if none are present in the input\n")); | |
333 | #endif /* OBJ_ELF */ | |
334 | ||
4c63da97 AM |
335 | fprintf (stream, _("\ |
336 | -f skip whitespace and comment preprocessing\n")); | |
337 | fprintf (stream, _("\ | |
329e276d NC |
338 | -g --gen-debug generate debugging information\n")); |
339 | fprintf (stream, _("\ | |
340 | --gstabs generate STABS debugging information\n")); | |
4c63da97 | 341 | fprintf (stream, _("\ |
329e276d | 342 | --gstabs+ generate STABS debug info with GNU extensions\n")); |
05da4302 | 343 | fprintf (stream, _("\ |
31bf1864 | 344 | --gdwarf-<N> generate DWARF<N> debugging information. 2 <= <N> <= 5\n")); |
4c63da97 | 345 | fprintf (stream, _("\ |
b40bf0a2 NC |
346 | --gdwarf-sections generate per-function section names for DWARF line information\n")); |
347 | fprintf (stream, _("\ | |
4bdd3565 NC |
348 | --hash-size=<value> set the hash table size close to <value>\n")); |
349 | fprintf (stream, _("\ | |
4c63da97 AM |
350 | --help show this message and exit\n")); |
351 | fprintf (stream, _("\ | |
ea20a7da CC |
352 | --target-help show target specific options\n")); |
353 | fprintf (stream, _("\ | |
4c63da97 AM |
354 | -I DIR add DIR to search list for .include directives\n")); |
355 | fprintf (stream, _("\ | |
356 | -J don't warn about signed overflow\n")); | |
357 | fprintf (stream, _("\ | |
358 | -K warn when differences altered for long displacements\n")); | |
359 | fprintf (stream, _("\ | |
360 | -L,--keep-locals keep local symbols (e.g. starting with `L')\n")); | |
361 | fprintf (stream, _("\ | |
362 | -M,--mri assemble in MRI compatibility mode\n")); | |
363 | fprintf (stream, _("\ | |
364 | --MD FILE write dependency information in FILE (default none)\n")); | |
365 | fprintf (stream, _("\ | |
366 | -nocpp ignored\n")); | |
367 | fprintf (stream, _("\ | |
2edb36e7 NC |
368 | -no-pad-sections do not pad the end of sections to alignment boundaries\n")); |
369 | fprintf (stream, _("\ | |
4c63da97 AM |
370 | -o OBJFILE name the object-file output OBJFILE (default a.out)\n")); |
371 | fprintf (stream, _("\ | |
372 | -R fold data section into text section\n")); | |
373 | fprintf (stream, _("\ | |
4bdd3565 NC |
374 | --reduce-memory-overheads \n\ |
375 | prefer smaller memory use at the cost of longer\n\ | |
376 | assembly times\n")); | |
377 | fprintf (stream, _("\ | |
4c63da97 AM |
378 | --statistics print various measured statistics from execution\n")); |
379 | fprintf (stream, _("\ | |
380 | --strip-local-absolute strip local absolute symbols\n")); | |
381 | fprintf (stream, _("\ | |
382 | --traditional-format Use same format as native assembler when possible\n")); | |
383 | fprintf (stream, _("\ | |
384 | --version print assembler version number and exit\n")); | |
385 | fprintf (stream, _("\ | |
386 | -W --no-warn suppress warnings\n")); | |
387 | fprintf (stream, _("\ | |
388 | --warn don't suppress warnings\n")); | |
389 | fprintf (stream, _("\ | |
390 | --fatal-warnings treat warnings as errors\n")); | |
732f54cd | 391 | #ifdef HAVE_ITBL_CPU |
4c63da97 AM |
392 | fprintf (stream, _("\ |
393 | --itbl INSTTBL extend instruction set to include instructions\n\ | |
394 | matching the specifications defined in file INSTTBL\n")); | |
732f54cd | 395 | #endif |
4c63da97 AM |
396 | fprintf (stream, _("\ |
397 | -w ignored\n")); | |
398 | fprintf (stream, _("\ | |
399 | -X ignored\n")); | |
400 | fprintf (stream, _("\ | |
401 | -Z generate object file even after errors\n")); | |
402 | fprintf (stream, _("\ | |
403 | --listing-lhs-width set the width in words of the output data column of\n\ | |
404 | the listing\n")); | |
405 | fprintf (stream, _("\ | |
406 | --listing-lhs-width2 set the width in words of the continuation lines\n\ | |
407 | of the output data column; ignored if smaller than\n\ | |
408 | the width of the first line\n")); | |
409 | fprintf (stream, _("\ | |
410 | --listing-rhs-width set the max width in characters of the lines from\n\ | |
411 | the source file\n")); | |
412 | fprintf (stream, _("\ | |
413 | --listing-cont-lines set the maximum number of continuation lines used\n\ | |
414 | for the output data column of the listing\n")); | |
a55ff675 | 415 | fprintf (stream, _("\ |
34bca508 | 416 | @FILE read options from FILE\n")); |
4c63da97 AM |
417 | |
418 | md_show_usage (stream); | |
419 | ||
c20f4f8c | 420 | fputc ('\n', stream); |
92f01d61 JM |
421 | |
422 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
423 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); | |
4c63da97 AM |
424 | } |
425 | ||
76b0a8c0 KH |
426 | /* Since it is easy to do here we interpret the special arg "-" |
427 | to mean "use stdin" and we set that argv[] pointing to "". | |
428 | After we have munged argv[], the only things left are source file | |
429 | name(s) and ""(s) denoting stdin. These file names are used | |
430 | (perhaps more than once) later. | |
431 | ||
432 | check for new machine-dep cmdline options in | |
433 | md_parse_option definitions in config/tc-*.c. */ | |
252b5132 RH |
434 | |
435 | static void | |
33948635 | 436 | parse_args (int * pargc, char *** pargv) |
252b5132 | 437 | { |
33948635 NC |
438 | int old_argc; |
439 | int new_argc; | |
440 | char ** old_argv; | |
441 | char ** new_argv; | |
252b5132 RH |
442 | /* Starting the short option string with '-' is for programs that |
443 | expect options and other ARGV-elements in any order and that care about | |
444 | the ordering of the two. We describe each non-option ARGV-element | |
445 | as if it were the argument of an option with character code 1. */ | |
252b5132 | 446 | char *shortopts; |
5a38dc70 | 447 | extern const char *md_shortopts; |
33948635 NC |
448 | static const char std_shortopts[] = |
449 | { | |
30a2b4ef | 450 | '-', 'J', |
252b5132 | 451 | #ifndef WORKING_DOT_WORD |
30a2b4ef KH |
452 | /* -K is not meaningful if .word is not being hacked. */ |
453 | 'K', | |
252b5132 | 454 | #endif |
8f94ae4d | 455 | 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':', |
252b5132 | 456 | #ifndef VMS |
30a2b4ef KH |
457 | /* -v takes an argument on VMS, so we don't make it a generic |
458 | option. */ | |
459 | 'v', | |
252b5132 | 460 | #endif |
30a2b4ef | 461 | 'w', 'X', |
732f54cd | 462 | #ifdef HAVE_ITBL_CPU |
33948635 | 463 | /* New option for extending instruction set (see also --itbl below). */ |
30a2b4ef | 464 | 't', ':', |
732f54cd | 465 | #endif |
30a2b4ef KH |
466 | '\0' |
467 | }; | |
252b5132 RH |
468 | struct option *longopts; |
469 | extern struct option md_longopts[]; | |
470 | extern size_t md_longopts_size; | |
33948635 NC |
471 | /* Codes used for the long options with no short synonyms. */ |
472 | enum option_values | |
473 | { | |
474 | OPTION_HELP = OPTION_STD_BASE, | |
475 | OPTION_NOCPP, | |
476 | OPTION_STATISTICS, | |
477 | OPTION_VERSION, | |
478 | OPTION_DUMPCONFIG, | |
479 | OPTION_VERBOSE, | |
480 | OPTION_EMULATION, | |
3d6b762c | 481 | OPTION_DEBUG_PREFIX_MAP, |
33948635 | 482 | OPTION_DEFSYM, |
33948635 NC |
483 | OPTION_LISTING_LHS_WIDTH, |
484 | OPTION_LISTING_LHS_WIDTH2, | |
485 | OPTION_LISTING_RHS_WIDTH, | |
486 | OPTION_LISTING_CONT_LINES, | |
487 | OPTION_DEPFILE, | |
488 | OPTION_GSTABS, | |
05da4302 | 489 | OPTION_GSTABS_PLUS, |
31bf1864 NC |
490 | OPTION_GDWARF_2, |
491 | OPTION_GDWARF_3, | |
492 | OPTION_GDWARF_4, | |
493 | OPTION_GDWARF_5, | |
b40bf0a2 | 494 | OPTION_GDWARF_SECTIONS, |
66f8b2cb | 495 | OPTION_GDWARF_CIE_VERSION, |
33948635 NC |
496 | OPTION_STRIP_LOCAL_ABSOLUTE, |
497 | OPTION_TRADITIONAL_FORMAT, | |
33948635 NC |
498 | OPTION_WARN, |
499 | OPTION_TARGET_HELP, | |
500 | OPTION_EXECSTACK, | |
501 | OPTION_NOEXECSTACK, | |
21be61f5 | 502 | OPTION_SIZE_CHECK, |
b8871f35 | 503 | OPTION_ELF_STT_COMMON, |
0df8ad28 | 504 | OPTION_ELF_BUILD_NOTES, |
451133ce | 505 | OPTION_SECTNAME_SUBST, |
caa32fe5 | 506 | OPTION_ALTERNATE, |
5a14ab23 | 507 | OPTION_AL, |
4bdd3565 NC |
508 | OPTION_HASH_TABLE_SIZE, |
509 | OPTION_REDUCE_MEMORY_OVERHEADS, | |
0acf065b CC |
510 | OPTION_WARN_FATAL, |
511 | OPTION_COMPRESS_DEBUG, | |
2edb36e7 NC |
512 | OPTION_NOCOMPRESS_DEBUG, |
513 | OPTION_NO_PAD_SECTIONS /* = STD_BASE + 40 */ | |
329e276d NC |
514 | /* When you add options here, check that they do |
515 | not collide with OPTION_MD_BASE. See as.h. */ | |
33948635 | 516 | }; |
34bca508 | 517 | |
33948635 NC |
518 | static const struct option std_longopts[] = |
519 | { | |
329e276d | 520 | /* Note: commas are placed at the start of the line rather than |
cc643b88 | 521 | the end of the preceding line so that it is simpler to |
329e276d NC |
522 | selectively add and remove lines from this list. */ |
523 | {"alternate", no_argument, NULL, OPTION_ALTERNATE} | |
fb767913 NC |
524 | /* The entry for "a" is here to prevent getopt_long_only() from |
525 | considering that -a is an abbreviation for --alternate. This is | |
526 | necessary because -a=<FILE> is a valid switch but getopt would | |
527 | normally reject it since --alternate does not take an argument. */ | |
528 | ,{"a", optional_argument, NULL, 'a'} | |
5a14ab23 L |
529 | /* Handle -al=<FILE>. */ |
530 | ,{"al", optional_argument, NULL, OPTION_AL} | |
151411f8 | 531 | ,{"compress-debug-sections", optional_argument, NULL, OPTION_COMPRESS_DEBUG} |
0acf065b | 532 | ,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG} |
3d6b762c | 533 | ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP} |
329e276d NC |
534 | ,{"defsym", required_argument, NULL, OPTION_DEFSYM} |
535 | ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG} | |
536 | ,{"emulation", required_argument, NULL, OPTION_EMULATION} | |
7be1c489 | 537 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
329e276d NC |
538 | ,{"execstack", no_argument, NULL, OPTION_EXECSTACK} |
539 | ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK} | |
21be61f5 | 540 | ,{"size-check", required_argument, NULL, OPTION_SIZE_CHECK} |
b8871f35 | 541 | ,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON} |
451133ce | 542 | ,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST} |
0df8ad28 | 543 | ,{"generate-missing-build-notes", required_argument, NULL, OPTION_ELF_BUILD_NOTES} |
329e276d NC |
544 | #endif |
545 | ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL} | |
31bf1864 NC |
546 | ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF_2} |
547 | ,{"gdwarf-3", no_argument, NULL, OPTION_GDWARF_3} | |
548 | ,{"gdwarf-4", no_argument, NULL, OPTION_GDWARF_4} | |
549 | ,{"gdwarf-5", no_argument, NULL, OPTION_GDWARF_5} | |
550 | /* GCC uses --gdwarf-2 but GAS used to to use --gdwarf2, | |
329e276d | 551 | so we keep it here for backwards compatibility. */ |
31bf1864 | 552 | ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF_2} |
b40bf0a2 | 553 | ,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS} |
66f8b2cb | 554 | ,{"gdwarf-cie-version", required_argument, NULL, OPTION_GDWARF_CIE_VERSION} |
329e276d NC |
555 | ,{"gen-debug", no_argument, NULL, 'g'} |
556 | ,{"gstabs", no_argument, NULL, OPTION_GSTABS} | |
557 | ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS} | |
4bdd3565 | 558 | ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE} |
329e276d | 559 | ,{"help", no_argument, NULL, OPTION_HELP} |
732f54cd | 560 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
561 | /* New option for extending instruction set (see also -t above). |
562 | The "-t file" or "--itbl file" option extends the basic set of | |
563 | valid instructions by reading "file", a text file containing a | |
564 | list of instruction formats. The additional opcodes and their | |
565 | formats are added to the built-in set of instructions, and | |
566 | mnemonics for new registers may also be defined. */ | |
732f54cd JB |
567 | ,{"itbl", required_argument, NULL, 't'} |
568 | #endif | |
329e276d NC |
569 | /* getopt allows abbreviations, so we do this to stop it from |
570 | treating -k as an abbreviation for --keep-locals. Some | |
571 | ports use -k to enable PIC assembly. */ | |
572 | ,{"keep-locals", no_argument, NULL, 'L'} | |
573 | ,{"keep-locals", no_argument, NULL, 'L'} | |
574 | ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH} | |
575 | ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2} | |
576 | ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH} | |
577 | ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES} | |
578 | ,{"MD", required_argument, NULL, OPTION_DEPFILE} | |
579 | ,{"mri", no_argument, NULL, 'M'} | |
580 | ,{"nocpp", no_argument, NULL, OPTION_NOCPP} | |
2edb36e7 | 581 | ,{"no-pad-sections", no_argument, NULL, OPTION_NO_PAD_SECTIONS} |
329e276d | 582 | ,{"no-warn", no_argument, NULL, 'W'} |
4bdd3565 | 583 | ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS} |
329e276d NC |
584 | ,{"statistics", no_argument, NULL, OPTION_STATISTICS} |
585 | ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE} | |
586 | ,{"version", no_argument, NULL, OPTION_VERSION} | |
587 | ,{"verbose", no_argument, NULL, OPTION_VERBOSE} | |
588 | ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP} | |
589 | ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT} | |
590 | ,{"warn", no_argument, NULL, OPTION_WARN} | |
252b5132 RH |
591 | }; |
592 | ||
beb2de9b AC |
593 | /* Construct the option lists from the standard list and the target |
594 | dependent list. Include space for an extra NULL option and | |
76b0a8c0 | 595 | always NULL terminate. */ |
252b5132 | 596 | shortopts = concat (std_shortopts, md_shortopts, (char *) NULL); |
1e9cc1c2 NC |
597 | longopts = (struct option *) xmalloc (sizeof (std_longopts) |
598 | + md_longopts_size + sizeof (struct option)); | |
252b5132 | 599 | memcpy (longopts, std_longopts, sizeof (std_longopts)); |
33948635 NC |
600 | memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size); |
601 | memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size, | |
beb2de9b | 602 | 0, sizeof (struct option)); |
252b5132 RH |
603 | |
604 | /* Make a local copy of the old argv. */ | |
605 | old_argc = *pargc; | |
606 | old_argv = *pargv; | |
607 | ||
608 | /* Initialize a new argv that contains no options. */ | |
add39d23 | 609 | new_argv = XNEWVEC (char *, old_argc + 1); |
252b5132 RH |
610 | new_argv[0] = old_argv[0]; |
611 | new_argc = 1; | |
612 | new_argv[new_argc] = NULL; | |
613 | ||
614 | while (1) | |
615 | { | |
616 | /* getopt_long_only is like getopt_long, but '-' as well as '--' can | |
617 | indicate a long option. */ | |
618 | int longind; | |
619 | int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts, | |
620 | &longind); | |
621 | ||
622 | if (optc == -1) | |
623 | break; | |
624 | ||
625 | switch (optc) | |
626 | { | |
627 | default: | |
628 | /* md_parse_option should return 1 if it recognizes optc, | |
629 | 0 if not. */ | |
630 | if (md_parse_option (optc, optarg) != 0) | |
631 | break; | |
632 | /* `-v' isn't included in the general short_opts list, so check for | |
47eebc20 | 633 | it explicitly here before deciding we've gotten a bad argument. */ |
252b5132 RH |
634 | if (optc == 'v') |
635 | { | |
636 | #ifdef VMS | |
637 | /* Telling getopt to treat -v's value as optional can result | |
638 | in it picking up a following filename argument here. The | |
639 | VMS code in md_parse_option can return 0 in that case, | |
640 | but it has no way of pushing the filename argument back. */ | |
641 | if (optarg && *optarg) | |
30a2b4ef | 642 | new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL; |
252b5132 RH |
643 | else |
644 | #else | |
645 | case 'v': | |
646 | #endif | |
647 | case OPTION_VERBOSE: | |
648 | print_version_id (); | |
54cfded0 | 649 | verbose = 1; |
252b5132 RH |
650 | break; |
651 | } | |
329e276d NC |
652 | else |
653 | as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : ""); | |
76b0a8c0 | 654 | /* Fall through. */ |
252b5132 RH |
655 | |
656 | case '?': | |
657 | exit (EXIT_FAILURE); | |
658 | ||
659 | case 1: /* File name. */ | |
660 | if (!strcmp (optarg, "-")) | |
97830986 | 661 | optarg = (char *) ""; |
252b5132 RH |
662 | new_argv[new_argc++] = optarg; |
663 | new_argv[new_argc] = NULL; | |
664 | break; | |
ef99799a | 665 | |
ea20a7da | 666 | case OPTION_TARGET_HELP: |
411863a4 KH |
667 | md_show_usage (stdout); |
668 | exit (EXIT_SUCCESS); | |
252b5132 RH |
669 | |
670 | case OPTION_HELP: | |
671 | show_usage (stdout); | |
672 | exit (EXIT_SUCCESS); | |
673 | ||
674 | case OPTION_NOCPP: | |
675 | break; | |
676 | ||
2edb36e7 NC |
677 | case OPTION_NO_PAD_SECTIONS: |
678 | do_not_pad_sections_to_alignment = 1; | |
679 | break; | |
680 | ||
252b5132 RH |
681 | case OPTION_STATISTICS: |
682 | flag_print_statistics = 1; | |
683 | break; | |
684 | ||
685 | case OPTION_STRIP_LOCAL_ABSOLUTE: | |
686 | flag_strip_local_absolute = 1; | |
687 | break; | |
688 | ||
689 | case OPTION_TRADITIONAL_FORMAT: | |
690 | flag_traditional_format = 1; | |
691 | break; | |
692 | ||
693 | case OPTION_VERSION: | |
694 | /* This output is intended to follow the GNU standards document. */ | |
6c19f338 | 695 | printf (_("GNU assembler %s\n"), BFD_VERSION_STRING); |
b3adc24a | 696 | printf (_("Copyright (C) 2020 Free Software Foundation, Inc.\n")); |
252b5132 RH |
697 | printf (_("\ |
698 | This program is free software; you may redistribute it under the terms of\n\ | |
ec2655a6 NC |
699 | the GNU General Public License version 3 or later.\n\ |
700 | This program has absolutely no warranty.\n")); | |
9004b6bd AB |
701 | #ifdef TARGET_WITH_CPU |
702 | printf (_("This assembler was configured for a target of `%s' " | |
703 | "and default,\ncpu type `%s'.\n"), | |
704 | TARGET_ALIAS, TARGET_WITH_CPU); | |
705 | #else | |
252b5132 RH |
706 | printf (_("This assembler was configured for a target of `%s'.\n"), |
707 | TARGET_ALIAS); | |
9004b6bd | 708 | #endif |
252b5132 RH |
709 | exit (EXIT_SUCCESS); |
710 | ||
711 | case OPTION_EMULATION: | |
712 | #ifdef USE_EMULATIONS | |
713 | if (strcmp (optarg, this_emulation->name)) | |
714 | as_fatal (_("multiple emulation names specified")); | |
715 | #else | |
716 | as_fatal (_("emulations not handled in this configuration")); | |
717 | #endif | |
718 | break; | |
719 | ||
720 | case OPTION_DUMPCONFIG: | |
721 | fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS); | |
722 | fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL); | |
723 | fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU); | |
724 | #ifdef TARGET_OBJ_FORMAT | |
725 | fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT); | |
726 | #endif | |
727 | #ifdef TARGET_FORMAT | |
728 | fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT); | |
729 | #endif | |
730 | exit (EXIT_SUCCESS); | |
731 | ||
0acf065b | 732 | case OPTION_COMPRESS_DEBUG: |
151411f8 L |
733 | if (optarg) |
734 | { | |
735 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF | |
736 | if (strcasecmp (optarg, "none") == 0) | |
737 | flag_compress_debug = COMPRESS_DEBUG_NONE; | |
738 | else if (strcasecmp (optarg, "zlib") == 0) | |
19a7fe52 | 739 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
151411f8 L |
740 | else if (strcasecmp (optarg, "zlib-gnu") == 0) |
741 | flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB; | |
742 | else if (strcasecmp (optarg, "zlib-gabi") == 0) | |
743 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
744 | else | |
745 | as_fatal (_("Invalid --compress-debug-sections option: `%s'"), | |
746 | optarg); | |
747 | #else | |
748 | as_fatal (_("--compress-debug-sections=%s is unsupported"), | |
749 | optarg); | |
750 | #endif | |
751 | } | |
752 | else | |
19a7fe52 | 753 | flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
0acf065b CC |
754 | break; |
755 | ||
756 | case OPTION_NOCOMPRESS_DEBUG: | |
151411f8 | 757 | flag_compress_debug = COMPRESS_DEBUG_NONE; |
0acf065b CC |
758 | break; |
759 | ||
3d6b762c JM |
760 | case OPTION_DEBUG_PREFIX_MAP: |
761 | add_debug_prefix_map (optarg); | |
762 | break; | |
763 | ||
252b5132 RH |
764 | case OPTION_DEFSYM: |
765 | { | |
766 | char *s; | |
a38cf1db | 767 | valueT i; |
252b5132 RH |
768 | struct defsym_list *n; |
769 | ||
770 | for (s = optarg; *s != '\0' && *s != '='; s++) | |
771 | ; | |
772 | if (*s == '\0') | |
773 | as_fatal (_("bad defsym; format is --defsym name=value")); | |
774 | *s++ = '\0'; | |
a38cf1db | 775 | i = bfd_scan_vma (s, (const char **) NULL, 0); |
add39d23 | 776 | n = XNEW (struct defsym_list); |
252b5132 RH |
777 | n->next = defsyms; |
778 | n->name = optarg; | |
779 | n->value = i; | |
780 | defsyms = n; | |
781 | } | |
782 | break; | |
783 | ||
732f54cd | 784 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
785 | case 't': |
786 | { | |
76b0a8c0 KH |
787 | /* optarg is the name of the file containing the instruction |
788 | formats, opcodes, register names, etc. */ | |
252b5132 RH |
789 | struct itbl_file_list *n; |
790 | ||
791 | if (optarg == NULL) | |
792 | { | |
0e389e77 | 793 | as_warn (_("no file name following -t option")); |
252b5132 RH |
794 | break; |
795 | } | |
76b0a8c0 | 796 | |
325801bd | 797 | n = XNEW (struct itbl_file_list); |
252b5132 RH |
798 | n->next = itbl_files; |
799 | n->name = optarg; | |
800 | itbl_files = n; | |
801 | ||
802 | /* Parse the file and add the new instructions to our internal | |
76b0a8c0 KH |
803 | table. If multiple instruction tables are specified, the |
804 | information from this table gets appended onto the existing | |
805 | internal table. */ | |
252b5132 RH |
806 | itbl_files->name = xstrdup (optarg); |
807 | if (itbl_parse (itbl_files->name) != 0) | |
0e389e77 AM |
808 | as_fatal (_("failed to read instruction table %s\n"), |
809 | itbl_files->name); | |
252b5132 RH |
810 | } |
811 | break; | |
732f54cd | 812 | #endif |
252b5132 RH |
813 | |
814 | case OPTION_DEPFILE: | |
815 | start_dependencies (optarg); | |
816 | break; | |
817 | ||
329e276d | 818 | case 'g': |
8f94ae4d NC |
819 | /* Some backends, eg Alpha and Mips, use the -g switch for their |
820 | own purposes. So we check here for an explicit -g and allow | |
329e276d NC |
821 | the backend to decide if it wants to process it. */ |
822 | if ( old_argv[optind - 1][1] == 'g' | |
329e276d NC |
823 | && md_parse_option (optc, optarg)) |
824 | continue; | |
825 | ||
826 | if (md_debug_format_selector) | |
827 | debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions); | |
828 | else if (IS_ELF) | |
31bf1864 NC |
829 | { |
830 | debug_type = DEBUG_DWARF2; | |
831 | dwarf_level = 2; | |
832 | } | |
329e276d NC |
833 | else |
834 | debug_type = DEBUG_STABS; | |
835 | break; | |
836 | ||
05da4302 NC |
837 | case OPTION_GSTABS_PLUS: |
838 | use_gnu_debug_info_extensions = 1; | |
839 | /* Fall through. */ | |
252b5132 RH |
840 | case OPTION_GSTABS: |
841 | debug_type = DEBUG_STABS; | |
842 | break; | |
76b0a8c0 | 843 | |
31bf1864 NC |
844 | case OPTION_GDWARF_2: |
845 | debug_type = DEBUG_DWARF2; | |
846 | dwarf_level = 2; | |
847 | break; | |
848 | ||
849 | case OPTION_GDWARF_3: | |
850 | debug_type = DEBUG_DWARF2; | |
851 | dwarf_level = 3; | |
852 | break; | |
853 | ||
854 | case OPTION_GDWARF_4: | |
fac0d250 | 855 | debug_type = DEBUG_DWARF2; |
31bf1864 NC |
856 | dwarf_level = 4; |
857 | break; | |
858 | ||
859 | case OPTION_GDWARF_5: | |
860 | debug_type = DEBUG_DWARF2; | |
861 | dwarf_level = 5; | |
fac0d250 RH |
862 | break; |
863 | ||
b40bf0a2 NC |
864 | case OPTION_GDWARF_SECTIONS: |
865 | flag_dwarf_sections = TRUE; | |
866 | break; | |
867 | ||
66f8b2cb AB |
868 | case OPTION_GDWARF_CIE_VERSION: |
869 | flag_dwarf_cie_version = atoi (optarg); | |
870 | /* The available CIE versions are 1 (DWARF 2), 3 (DWARF 3), and 4 | |
871 | (DWARF 4 and 5). */ | |
872 | if (flag_dwarf_cie_version < 1 | |
873 | || flag_dwarf_cie_version == 2 | |
874 | || flag_dwarf_cie_version > 4) | |
875 | as_fatal (_("Invalid --gdwarf-cie-version `%s'"), optarg); | |
31bf1864 NC |
876 | switch (flag_dwarf_cie_version) |
877 | { | |
878 | case 1: | |
879 | if (dwarf_level < 2) | |
880 | dwarf_level = 2; | |
881 | break; | |
882 | case 3: | |
883 | if (dwarf_level < 3) | |
884 | dwarf_level = 3; | |
885 | break; | |
886 | default: | |
887 | if (dwarf_level < 4) | |
888 | dwarf_level = 4; | |
889 | break; | |
890 | } | |
66f8b2cb AB |
891 | break; |
892 | ||
252b5132 RH |
893 | case 'J': |
894 | flag_signed_overflow_ok = 1; | |
895 | break; | |
896 | ||
897 | #ifndef WORKING_DOT_WORD | |
898 | case 'K': | |
899 | flag_warn_displacement = 1; | |
900 | break; | |
901 | #endif | |
252b5132 RH |
902 | case 'L': |
903 | flag_keep_locals = 1; | |
904 | break; | |
905 | ||
906 | case OPTION_LISTING_LHS_WIDTH: | |
76b0a8c0 | 907 | listing_lhs_width = atoi (optarg); |
252b5132 RH |
908 | if (listing_lhs_width_second < listing_lhs_width) |
909 | listing_lhs_width_second = listing_lhs_width; | |
910 | break; | |
911 | case OPTION_LISTING_LHS_WIDTH2: | |
912 | { | |
76b0a8c0 | 913 | int tmp = atoi (optarg); |
329e276d | 914 | |
252b5132 RH |
915 | if (tmp > listing_lhs_width) |
916 | listing_lhs_width_second = tmp; | |
917 | } | |
918 | break; | |
919 | case OPTION_LISTING_RHS_WIDTH: | |
76b0a8c0 | 920 | listing_rhs_width = atoi (optarg); |
252b5132 RH |
921 | break; |
922 | case OPTION_LISTING_CONT_LINES: | |
76b0a8c0 | 923 | listing_lhs_cont_lines = atoi (optarg); |
252b5132 RH |
924 | break; |
925 | ||
926 | case 'M': | |
927 | flag_mri = 1; | |
928 | #ifdef TC_M68K | |
929 | flag_m68k_mri = 1; | |
930 | #endif | |
931 | break; | |
932 | ||
933 | case 'R': | |
934 | flag_readonly_data_in_text = 1; | |
935 | break; | |
936 | ||
937 | case 'W': | |
938 | flag_no_warnings = 1; | |
939 | break; | |
940 | ||
2bdd6cf5 GK |
941 | case OPTION_WARN: |
942 | flag_no_warnings = 0; | |
943 | flag_fatal_warnings = 0; | |
944 | break; | |
945 | ||
946 | case OPTION_WARN_FATAL: | |
947 | flag_no_warnings = 0; | |
948 | flag_fatal_warnings = 1; | |
949 | break; | |
950 | ||
7be1c489 | 951 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
952 | case OPTION_EXECSTACK: |
953 | flag_execstack = 1; | |
954 | flag_noexecstack = 0; | |
955 | break; | |
956 | ||
957 | case OPTION_NOEXECSTACK: | |
958 | flag_noexecstack = 1; | |
959 | flag_execstack = 0; | |
960 | break; | |
21be61f5 L |
961 | |
962 | case OPTION_SIZE_CHECK: | |
963 | if (strcasecmp (optarg, "error") == 0) | |
a90fb5e3 | 964 | flag_allow_nonconst_size = FALSE; |
21be61f5 | 965 | else if (strcasecmp (optarg, "warning") == 0) |
a90fb5e3 | 966 | flag_allow_nonconst_size = TRUE; |
21be61f5 L |
967 | else |
968 | as_fatal (_("Invalid --size-check= option: `%s'"), optarg); | |
969 | break; | |
451133ce | 970 | |
b8871f35 L |
971 | case OPTION_ELF_STT_COMMON: |
972 | if (strcasecmp (optarg, "no") == 0) | |
973 | flag_use_elf_stt_common = 0; | |
974 | else if (strcasecmp (optarg, "yes") == 0) | |
975 | flag_use_elf_stt_common = 1; | |
976 | else | |
977 | as_fatal (_("Invalid --elf-stt-common= option: `%s'"), | |
978 | optarg); | |
979 | break; | |
980 | ||
451133ce NP |
981 | case OPTION_SECTNAME_SUBST: |
982 | flag_sectname_subst = 1; | |
983 | break; | |
0df8ad28 NC |
984 | |
985 | case OPTION_ELF_BUILD_NOTES: | |
986 | if (strcasecmp (optarg, "no") == 0) | |
987 | flag_generate_build_notes = FALSE; | |
988 | else if (strcasecmp (optarg, "yes") == 0) | |
989 | flag_generate_build_notes = TRUE; | |
990 | else | |
991 | as_fatal (_("Invalid --generate-missing-build-notes option: `%s'"), | |
992 | optarg); | |
993 | break; | |
994 | ||
995 | #endif /* OBJ_ELF */ | |
996 | ||
252b5132 RH |
997 | case 'Z': |
998 | flag_always_generate_output = 1; | |
999 | break; | |
1000 | ||
5a14ab23 L |
1001 | case OPTION_AL: |
1002 | listing |= LISTING_LISTING; | |
1003 | if (optarg) | |
1004 | listing_filename = xstrdup (optarg); | |
1005 | break; | |
1006 | ||
caa32fe5 NC |
1007 | case OPTION_ALTERNATE: |
1008 | optarg = old_argv [optind - 1]; | |
1009 | while (* optarg == '-') | |
1010 | optarg ++; | |
1011 | ||
1012 | if (strcmp (optarg, "alternate") == 0) | |
1013 | { | |
1014 | flag_macro_alternate = 1; | |
1015 | break; | |
1016 | } | |
1017 | optarg ++; | |
1018 | /* Fall through. */ | |
1019 | ||
252b5132 RH |
1020 | case 'a': |
1021 | if (optarg) | |
1022 | { | |
fb767913 NC |
1023 | if (optarg != old_argv[optind] && optarg[-1] == '=') |
1024 | --optarg; | |
1025 | ||
7f6d05e8 CP |
1026 | if (md_parse_option (optc, optarg) != 0) |
1027 | break; | |
1028 | ||
252b5132 RH |
1029 | while (*optarg) |
1030 | { | |
1031 | switch (*optarg) | |
1032 | { | |
1033 | case 'c': | |
1034 | listing |= LISTING_NOCOND; | |
1035 | break; | |
1036 | case 'd': | |
1037 | listing |= LISTING_NODEBUG; | |
1038 | break; | |
83f10cb2 NC |
1039 | case 'g': |
1040 | listing |= LISTING_GENERAL; | |
1041 | break; | |
252b5132 RH |
1042 | case 'h': |
1043 | listing |= LISTING_HLL; | |
1044 | break; | |
1045 | case 'l': | |
1046 | listing |= LISTING_LISTING; | |
1047 | break; | |
1048 | case 'm': | |
1049 | listing |= LISTING_MACEXP; | |
1050 | break; | |
1051 | case 'n': | |
1052 | listing |= LISTING_NOFORM; | |
1053 | break; | |
1054 | case 's': | |
1055 | listing |= LISTING_SYMBOLS; | |
1056 | break; | |
1057 | case '=': | |
1058 | listing_filename = xstrdup (optarg + 1); | |
1059 | optarg += strlen (listing_filename); | |
1060 | break; | |
1061 | default: | |
1062 | as_fatal (_("invalid listing option `%c'"), *optarg); | |
1063 | break; | |
1064 | } | |
1065 | optarg++; | |
1066 | } | |
1067 | } | |
1068 | if (!listing) | |
1069 | listing = LISTING_DEFAULT; | |
1070 | break; | |
1071 | ||
1072 | case 'D': | |
76b0a8c0 KH |
1073 | /* DEBUG is implemented: it debugs different |
1074 | things from other people's assemblers. */ | |
252b5132 RH |
1075 | flag_debug = 1; |
1076 | break; | |
1077 | ||
1078 | case 'f': | |
1079 | flag_no_comments = 1; | |
1080 | break; | |
1081 | ||
1082 | case 'I': | |
76b0a8c0 | 1083 | { /* Include file directory. */ |
252b5132 | 1084 | char *temp = xstrdup (optarg); |
329e276d | 1085 | |
252b5132 RH |
1086 | add_include_dir (temp); |
1087 | break; | |
1088 | } | |
1089 | ||
1090 | case 'o': | |
1091 | out_file_name = xstrdup (optarg); | |
1092 | break; | |
1093 | ||
1094 | case 'w': | |
1095 | break; | |
1096 | ||
1097 | case 'X': | |
76b0a8c0 | 1098 | /* -X means treat warnings as errors. */ |
252b5132 | 1099 | break; |
4bdd3565 NC |
1100 | |
1101 | case OPTION_REDUCE_MEMORY_OVERHEADS: | |
1102 | /* The only change we make at the moment is to reduce | |
1103 | the size of the hash tables that we use. */ | |
1104 | set_gas_hash_table_size (4051); | |
1105 | break; | |
1106 | ||
1107 | case OPTION_HASH_TABLE_SIZE: | |
1108 | { | |
f7a568ea | 1109 | unsigned long new_size; |
4bdd3565 NC |
1110 | |
1111 | new_size = strtoul (optarg, NULL, 0); | |
1112 | if (new_size) | |
1113 | set_gas_hash_table_size (new_size); | |
1114 | else | |
1115 | as_fatal (_("--hash-size needs a numeric argument")); | |
1116 | break; | |
1117 | } | |
252b5132 RH |
1118 | } |
1119 | } | |
1120 | ||
1121 | free (shortopts); | |
1122 | free (longopts); | |
1123 | ||
1124 | *pargc = new_argc; | |
1125 | *pargv = new_argv; | |
acebd4ce AS |
1126 | |
1127 | #ifdef md_after_parse_args | |
1128 | md_after_parse_args (); | |
1129 | #endif | |
252b5132 RH |
1130 | } |
1131 | ||
33948635 NC |
1132 | static void |
1133 | dump_statistics (void) | |
1134 | { | |
33948635 NC |
1135 | long run_time = get_run_time () - start_time; |
1136 | ||
1137 | fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"), | |
1138 | myname, run_time / 1000000, run_time % 1000000); | |
252b5132 | 1139 | |
33948635 NC |
1140 | subsegs_print_statistics (stderr); |
1141 | write_print_statistics (stderr); | |
1142 | symbol_print_statistics (stderr); | |
1143 | read_print_statistics (stderr); | |
1144 | ||
1145 | #ifdef tc_print_statistics | |
1146 | tc_print_statistics (stderr); | |
1147 | #endif | |
1148 | ||
1149 | #ifdef obj_print_statistics | |
1150 | obj_print_statistics (stderr); | |
1151 | #endif | |
1152 | } | |
1153 | ||
0d474464 L |
1154 | static void |
1155 | close_output_file (void) | |
1156 | { | |
1157 | output_file_close (out_file_name); | |
58e8191c SA |
1158 | if (!keep_it) |
1159 | unlink_if_ordinary (out_file_name); | |
0d474464 | 1160 | } |
0d474464 | 1161 | |
33948635 NC |
1162 | /* The interface between the macro code and gas expression handling. */ |
1163 | ||
39a45edc AM |
1164 | static size_t |
1165 | macro_expr (const char *emsg, size_t idx, sb *in, offsetT *val) | |
33948635 | 1166 | { |
33948635 NC |
1167 | expressionS ex; |
1168 | ||
1169 | sb_terminate (in); | |
1170 | ||
af60449c | 1171 | temp_ilp (in->ptr + idx); |
9497f5ac | 1172 | expression_and_evaluate (&ex); |
33948635 | 1173 | idx = input_line_pointer - in->ptr; |
af60449c | 1174 | restore_ilp (); |
33948635 NC |
1175 | |
1176 | if (ex.X_op != O_constant) | |
1177 | as_bad ("%s", emsg); | |
1178 | ||
39a45edc | 1179 | *val = ex.X_add_number; |
33948635 NC |
1180 | |
1181 | return idx; | |
1182 | } | |
1183 | \f | |
1184 | /* Here to attempt 1 pass over each input file. | |
1185 | We scan argv[*] looking for filenames or exactly "" which is | |
1186 | shorthand for stdin. Any argv that is NULL is not a file-name. | |
1187 | We set need_pass_2 TRUE if, after this, we still have unresolved | |
1188 | expressions of the form (unknown value)+-(unknown value). | |
1189 | ||
1190 | Note the un*x semantics: there is only 1 logical input file, but it | |
1191 | may be a catenation of many 'physical' input files. */ | |
1192 | ||
1193 | static void | |
1194 | perform_an_assembly_pass (int argc, char ** argv) | |
1195 | { | |
1196 | int saw_a_file = 0; | |
bcf0aac6 | 1197 | #ifndef OBJ_MACH_O |
33948635 | 1198 | flagword applicable; |
bcf0aac6 | 1199 | #endif |
33948635 NC |
1200 | |
1201 | need_pass_2 = 0; | |
1202 | ||
bcf0aac6 | 1203 | #ifndef OBJ_MACH_O |
33948635 NC |
1204 | /* Create the standard sections, and those the assembler uses |
1205 | internally. */ | |
1206 | text_section = subseg_new (TEXT_SECTION_NAME, 0); | |
1207 | data_section = subseg_new (DATA_SECTION_NAME, 0); | |
1208 | bss_section = subseg_new (BSS_SECTION_NAME, 0); | |
1209 | /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed | |
1210 | to have relocs, otherwise we don't find out in time. */ | |
1211 | applicable = bfd_applicable_section_flags (stdoutput); | |
fd361982 | 1212 | bfd_set_section_flags (text_section, |
33948635 NC |
1213 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
1214 | | SEC_CODE | SEC_READONLY)); | |
fd361982 | 1215 | bfd_set_section_flags (data_section, |
33948635 NC |
1216 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
1217 | | SEC_DATA)); | |
fd361982 | 1218 | bfd_set_section_flags (bss_section, applicable & SEC_ALLOC); |
33948635 | 1219 | seg_info (bss_section)->bss = 1; |
bcf0aac6 | 1220 | #endif |
33948635 NC |
1221 | subseg_new (BFD_ABS_SECTION_NAME, 0); |
1222 | subseg_new (BFD_UND_SECTION_NAME, 0); | |
1223 | reg_section = subseg_new ("*GAS `reg' section*", 0); | |
1224 | expr_section = subseg_new ("*GAS `expr' section*", 0); | |
1225 | ||
bcf0aac6 | 1226 | #ifndef OBJ_MACH_O |
33948635 | 1227 | subseg_set (text_section, 0); |
bcf0aac6 | 1228 | #endif |
33948635 NC |
1229 | |
1230 | /* This may add symbol table entries, which requires having an open BFD, | |
7be1c489 | 1231 | and sections already created. */ |
33948635 NC |
1232 | md_begin (); |
1233 | ||
1234 | #ifdef USING_CGEN | |
1235 | gas_cgen_begin (); | |
1236 | #endif | |
1237 | #ifdef obj_begin | |
1238 | obj_begin (); | |
1239 | #endif | |
1240 | ||
1241 | /* Skip argv[0]. */ | |
1242 | argv++; | |
1243 | argc--; | |
1244 | ||
1245 | while (argc--) | |
1246 | { | |
1247 | if (*argv) | |
1248 | { /* Is it a file-name argument? */ | |
1249 | PROGRESS (1); | |
1250 | saw_a_file++; | |
1251 | /* argv->"" if stdin desired, else->filename. */ | |
1252 | read_a_source_file (*argv); | |
1253 | } | |
1254 | argv++; /* Completed that argv. */ | |
1255 | } | |
1256 | if (!saw_a_file) | |
1257 | read_a_source_file (""); | |
1258 | } | |
1259 | \f | |
a80076a1 | 1260 | |
76b0a8c0 | 1261 | int |
33948635 | 1262 | main (int argc, char ** argv) |
252b5132 | 1263 | { |
83f10cb2 | 1264 | char ** argv_orig = argv; |
67f846b5 | 1265 | struct stat sob; |
83f10cb2 | 1266 | |
252b5132 | 1267 | int macro_strip_at; |
252b5132 RH |
1268 | |
1269 | start_time = get_run_time (); | |
1ec4b9f2 | 1270 | signal_init (); |
252b5132 RH |
1271 | |
1272 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
1273 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
1274 | #endif |
1275 | #if defined (HAVE_SETLOCALE) | |
1276 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
1277 | #endif |
1278 | bindtextdomain (PACKAGE, LOCALEDIR); | |
1279 | textdomain (PACKAGE); | |
1280 | ||
1281 | if (debug_memory) | |
091e58c1 | 1282 | chunksize = 64; |
252b5132 RH |
1283 | |
1284 | #ifdef HOST_SPECIAL_INIT | |
1285 | HOST_SPECIAL_INIT (argc, argv); | |
1286 | #endif | |
1287 | ||
1288 | myname = argv[0]; | |
1289 | xmalloc_set_program_name (myname); | |
1290 | ||
869b9d07 MM |
1291 | expandargv (&argc, &argv); |
1292 | ||
252b5132 RH |
1293 | START_PROGRESS (myname, 0); |
1294 | ||
1295 | #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME | |
1296 | #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out" | |
1297 | #endif | |
1298 | ||
1299 | out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; | |
1300 | ||
1301 | hex_init (); | |
bf2dd8d7 AM |
1302 | if (bfd_init () != BFD_INIT_MAGIC) |
1303 | as_fatal (_("libbfd ABI mismatch")); | |
252b5132 | 1304 | bfd_set_error_program_name (myname); |
252b5132 RH |
1305 | |
1306 | #ifdef USE_EMULATIONS | |
1307 | select_emulation_mode (argc, argv); | |
1308 | #endif | |
1309 | ||
1310 | PROGRESS (1); | |
f7a568ea NC |
1311 | /* Call parse_args before any of the init/begin functions |
1312 | so that switches like --hash-size can be honored. */ | |
1313 | parse_args (&argc, &argv); | |
67f846b5 JD |
1314 | |
1315 | if (argc > 1 && stat (out_file_name, &sob) == 0) | |
1316 | { | |
1317 | int i; | |
1318 | ||
1319 | for (i = 1; i < argc; ++i) | |
1320 | { | |
1321 | struct stat sib; | |
1322 | ||
2a50366d RY |
1323 | /* Check that the input file and output file are different. */ |
1324 | if (stat (argv[i], &sib) == 0 | |
1325 | && sib.st_ino == sob.st_ino | |
1326 | /* POSIX emulating systems may support stat() but if the | |
1327 | underlying file system does not support a file serial number | |
1328 | of some kind then they will return 0 for the inode. So | |
1329 | two files with an inode of 0 may not actually be the same. | |
1330 | On real POSIX systems no ordinary file will ever have an | |
1331 | inode of 0. */ | |
1332 | && sib.st_ino != 0 | |
1333 | /* Different files may have the same inode number if they | |
1334 | reside on different devices, so check the st_dev field as | |
1335 | well. */ | |
3c968de5 NC |
1336 | && sib.st_dev == sob.st_dev |
1337 | /* PR 25572: Only check regular files. Devices, sockets and so | |
1338 | on might actually work as both input and output. Plus there | |
1339 | is a use case for using /dev/null as both input and output | |
1340 | when checking for command line option support in a script: | |
1341 | as --foo /dev/null -o /dev/null; if $? then ... */ | |
1342 | && S_ISREG (sib.st_mode)) | |
67f846b5 | 1343 | { |
2a50366d RY |
1344 | const char *saved_out_file_name = out_file_name; |
1345 | ||
1346 | /* Don't let as_fatal remove the output file! */ | |
1347 | out_file_name = NULL; | |
1348 | as_fatal (_("The input '%s' and output '%s' files are the same"), | |
1349 | argv[i], saved_out_file_name); | |
67f846b5 JD |
1350 | } |
1351 | } | |
1352 | } | |
1353 | ||
252b5132 RH |
1354 | symbol_begin (); |
1355 | frag_init (); | |
1356 | subsegs_begin (); | |
252b5132 RH |
1357 | read_begin (); |
1358 | input_scrub_begin (); | |
1359 | expr_begin (); | |
1360 | ||
0d474464 L |
1361 | /* It has to be called after dump_statistics (). */ |
1362 | xatexit (close_output_file); | |
0d474464 | 1363 | |
252b5132 RH |
1364 | if (flag_print_statistics) |
1365 | xatexit (dump_statistics); | |
1366 | ||
252b5132 RH |
1367 | macro_strip_at = 0; |
1368 | #ifdef TC_I960 | |
1369 | macro_strip_at = flag_mri; | |
1370 | #endif | |
252b5132 | 1371 | |
caa32fe5 | 1372 | macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr); |
252b5132 RH |
1373 | |
1374 | PROGRESS (1); | |
1375 | ||
252b5132 | 1376 | output_file_create (out_file_name); |
9c2799c2 | 1377 | gas_assert (stdoutput != 0); |
252b5132 | 1378 | |
4a826962 MR |
1379 | dot_symbol_init (); |
1380 | ||
252b5132 RH |
1381 | #ifdef tc_init_after_args |
1382 | tc_init_after_args (); | |
1383 | #endif | |
1384 | ||
1385 | itbl_init (); | |
1386 | ||
1e9cc1c2 NC |
1387 | dwarf2_init (); |
1388 | ||
6885131b AM |
1389 | local_symbol_make (".gasversion.", absolute_section, |
1390 | BFD_VERSION / 10000UL, &predefined_address_frag); | |
00ce9deb | 1391 | |
252b5132 RH |
1392 | /* Now that we have fully initialized, and have created the output |
1393 | file, define any symbols requested by --defsym command line | |
1394 | arguments. */ | |
1395 | while (defsyms != NULL) | |
1396 | { | |
1397 | symbolS *sym; | |
1398 | struct defsym_list *next; | |
1399 | ||
1400 | sym = symbol_new (defsyms->name, absolute_section, defsyms->value, | |
1401 | &zero_address_frag); | |
bf083c64 NC |
1402 | /* Make symbols defined on the command line volatile, so that they |
1403 | can be redefined inside a source file. This makes this assembler's | |
1404 | behaviour compatible with earlier versions, but it may not be | |
1405 | completely intuitive. */ | |
1406 | S_SET_VOLATILE (sym); | |
252b5132 RH |
1407 | symbol_table_insert (sym); |
1408 | next = defsyms->next; | |
1409 | free (defsyms); | |
1410 | defsyms = next; | |
1411 | } | |
1412 | ||
1413 | PROGRESS (1); | |
1414 | ||
76b0a8c0 KH |
1415 | /* Assemble it. */ |
1416 | perform_an_assembly_pass (argc, argv); | |
252b5132 RH |
1417 | |
1418 | cond_finish_check (-1); | |
1419 | ||
1420 | #ifdef md_end | |
1421 | md_end (); | |
1422 | #endif | |
104d59d1 | 1423 | |
7be1c489 | 1424 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
1425 | if ((flag_execstack || flag_noexecstack) |
1426 | && OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
1427 | { | |
1428 | segT gnustack; | |
1429 | ||
1430 | gnustack = subseg_new (".note.GNU-stack", 0); | |
fd361982 | 1431 | bfd_set_section_flags (gnustack, |
68d55fe3 | 1432 | SEC_READONLY | (flag_execstack ? SEC_CODE : 0)); |
34bca508 | 1433 | |
68d55fe3 JJ |
1434 | } |
1435 | #endif | |
1436 | ||
43ad3147 | 1437 | /* If we've been collecting dwarf2 .debug_line info, either for |
39bb5fe6 RH |
1438 | assembly debugging or on behalf of the compiler, emit it now. */ |
1439 | dwarf2_finish (); | |
1440 | ||
34bca508 | 1441 | /* If we constructed dwarf2 .eh_frame info, either via .cfi |
a4447b93 | 1442 | directives from the user or by the backend, emit it now. */ |
54cfded0 | 1443 | cfi_finish (); |
54cfded0 | 1444 | |
85024cd8 AM |
1445 | keep_it = 0; |
1446 | if (seen_at_least_1_file ()) | |
1447 | { | |
1448 | int n_warns, n_errs; | |
1449 | char warn_msg[50]; | |
1450 | char err_msg[50]; | |
1451 | ||
1452 | write_object_file (); | |
1453 | ||
1454 | n_warns = had_warnings (); | |
1455 | n_errs = had_errors (); | |
1456 | ||
992a06ee AM |
1457 | sprintf (warn_msg, |
1458 | ngettext ("%d warning", "%d warnings", n_warns), n_warns); | |
1459 | sprintf (err_msg, | |
1460 | ngettext ("%d error", "%d errors", n_errs), n_errs); | |
85024cd8 AM |
1461 | if (flag_fatal_warnings && n_warns != 0) |
1462 | { | |
1463 | if (n_errs == 0) | |
1464 | as_bad (_("%s, treating warnings as errors"), warn_msg); | |
1465 | n_errs += n_warns; | |
1466 | } | |
252b5132 | 1467 | |
85024cd8 AM |
1468 | if (n_errs == 0) |
1469 | keep_it = 1; | |
1470 | else if (flag_always_generate_output) | |
1471 | { | |
1472 | /* The -Z flag indicates that an object file should be generated, | |
1473 | regardless of warnings and errors. */ | |
1474 | keep_it = 1; | |
1475 | fprintf (stderr, _("%s, %s, generating bad object file\n"), | |
1476 | err_msg, warn_msg); | |
1477 | } | |
1478 | } | |
252b5132 | 1479 | |
7f6a71ff JM |
1480 | fflush (stderr); |
1481 | ||
252b5132 | 1482 | #ifndef NO_LISTING |
83f10cb2 | 1483 | listing_print (listing_filename, argv_orig); |
252b5132 RH |
1484 | #endif |
1485 | ||
252b5132 RH |
1486 | input_scrub_end (); |
1487 | ||
1488 | END_PROGRESS (myname); | |
1489 | ||
1490 | /* Use xexit instead of return, because under VMS environments they | |
1491 | may not place the same interpretation on the value given. */ | |
85024cd8 | 1492 | if (had_errors () != 0) |
252b5132 RH |
1493 | xexit (EXIT_FAILURE); |
1494 | ||
1495 | /* Only generate dependency file if assembler was successful. */ | |
1496 | print_dependencies (); | |
1497 | ||
1498 | xexit (EXIT_SUCCESS); | |
1499 | } |