/src/binutils-gdb/gas/fuzz_as.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* as.c - GAS main program. |
2 | | Copyright (C) 1987-2024 Free Software Foundation, Inc. |
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 |
8 | | the Free Software Foundation; either version 3, or (at your option) |
9 | | any later version. |
10 | | |
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. |
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 |
18 | | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
19 | | 02110-1301, USA. */ |
20 | | |
21 | | /* Main program for AS; a 32-bit assembler of GNU. |
22 | | Understands command arguments. |
23 | | Has a few routines that don't fit in other modules because they |
24 | | are shared. |
25 | | |
26 | | bugs |
27 | | |
28 | | : initialisers |
29 | | Since no-one else says they will support them in future: I |
30 | | don't support them now. */ |
31 | | |
32 | | #define COMMON |
33 | | |
34 | | /* Disable code to set FAKE_LABEL_NAME in obj-multi.h, to avoid circular |
35 | | reference. */ |
36 | | #define INITIALIZING_EMULS |
37 | | |
38 | | #include "as.h" |
39 | | #include "subsegs.h" |
40 | | #include "output-file.h" |
41 | | #include "sb.h" |
42 | | #include "macro.h" |
43 | | #include "dwarf2dbg.h" |
44 | | #include "dw2gencfi.h" |
45 | | #include "codeview.h" |
46 | | #include "bfdver.h" |
47 | | #include "write.h" |
48 | | #include "ginsn.h" |
49 | | |
50 | | #ifdef HAVE_ITBL_CPU |
51 | | #include "itbl-ops.h" |
52 | | #else |
53 | | #define itbl_init() |
54 | | #endif |
55 | | |
56 | | #ifdef USING_CGEN |
57 | | /* Perform any cgen specific initialisation for gas. */ |
58 | | extern void gas_cgen_begin (void); |
59 | | #endif |
60 | | |
61 | | /* We build a list of defsyms as we read the options, and then define |
62 | | them after we have initialized everything. */ |
63 | | struct defsym_list |
64 | | { |
65 | | struct defsym_list *next; |
66 | | char *name; |
67 | | valueT value; |
68 | | }; |
69 | | |
70 | | |
71 | | /* True if a listing is wanted. */ |
72 | | int listing; |
73 | | |
74 | | /* Type of debugging to generate. */ |
75 | | enum debug_info_type debug_type = DEBUG_UNSPECIFIED; |
76 | | int use_gnu_debug_info_extensions = 0; |
77 | | |
78 | | #ifndef MD_DEBUG_FORMAT_SELECTOR |
79 | | #define MD_DEBUG_FORMAT_SELECTOR NULL |
80 | | #endif |
81 | | static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR; |
82 | | |
83 | | /* Maximum level of macro nesting. */ |
84 | | int max_macro_nest = 100; |
85 | | |
86 | | /* argv[0] */ |
87 | | static char * myname; |
88 | | |
89 | | /* The default obstack chunk size. If we set this to zero, the |
90 | | obstack code will use whatever will fit in a 4096 byte block. */ |
91 | | int chunksize = 0; |
92 | | |
93 | | /* To monitor memory allocation more effectively, make this non-zero. |
94 | | Then the chunk sizes for gas and bfd will be reduced. */ |
95 | | int debug_memory = 0; |
96 | | |
97 | | /* Enable verbose mode. */ |
98 | | int verbose = 0; |
99 | | |
100 | | /* Which version of DWARF CIE to produce. This default value of -1 |
101 | | indicates that this value has not been set yet, a default value is |
102 | | provided in dwarf2_init. A different value can also be supplied by the |
103 | | command line flag --gdwarf-cie-version, or by a target in |
104 | | MD_AFTER_PARSE_ARGS. */ |
105 | | int flag_dwarf_cie_version = -1; |
106 | | |
107 | | /* The maximum level of DWARF DEBUG information we should manufacture. |
108 | | This defaults to 3 unless overridden by a command line option. */ |
109 | | unsigned int dwarf_level = 3; |
110 | | |
111 | | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
112 | | int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON; |
113 | | bool flag_generate_build_notes = DEFAULT_GENERATE_BUILD_NOTES; |
114 | | #endif |
115 | | |
116 | | segT reg_section; |
117 | | segT expr_section; |
118 | | segT text_section; |
119 | | segT data_section; |
120 | | segT bss_section; |
121 | | |
122 | | /* Name of listing file. */ |
123 | | static char *listing_filename = NULL; |
124 | | |
125 | | static struct defsym_list *defsyms; |
126 | | |
127 | | static long start_time; |
128 | | |
129 | | |
130 | | #ifdef USE_EMULATIONS |
131 | | #define EMULATION_ENVIRON "AS_EMULATION" |
132 | | |
133 | | extern struct emulation mipsbelf, mipslelf, mipself; |
134 | | extern struct emulation i386coff, i386elf, i386aout; |
135 | | extern struct emulation crisaout, criself; |
136 | | |
137 | | static struct emulation *const emulations[] = { EMULATIONS }; |
138 | | static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]); |
139 | | |
140 | | static void |
141 | | select_emulation_mode (int argc, char **argv) |
142 | | { |
143 | | int i; |
144 | | char *p; |
145 | | const char *em = NULL; |
146 | | |
147 | | for (i = 1; i < argc; i++) |
148 | | if (startswith (argv[i], "--em")) |
149 | | break; |
150 | | |
151 | | if (i == argc) |
152 | | goto do_default; |
153 | | |
154 | | p = strchr (argv[i], '='); |
155 | | if (p) |
156 | | p++; |
157 | | else |
158 | | p = argv[i + 1]; |
159 | | |
160 | | if (!p || !*p) |
161 | | as_fatal (_("missing emulation mode name")); |
162 | | em = p; |
163 | | |
164 | | do_default: |
165 | | if (em == 0) |
166 | | em = getenv (EMULATION_ENVIRON); |
167 | | if (em == 0) |
168 | | em = DEFAULT_EMULATION; |
169 | | |
170 | | if (em) |
171 | | { |
172 | | for (i = 0; i < n_emulations; i++) |
173 | | if (!strcmp (emulations[i]->name, em)) |
174 | | break; |
175 | | if (i == n_emulations) |
176 | | as_fatal (_("unrecognized emulation name `%s'"), em); |
177 | | this_emulation = emulations[i]; |
178 | | } |
179 | | else |
180 | | this_emulation = emulations[0]; |
181 | | |
182 | | this_emulation->init (); |
183 | | } |
184 | | |
185 | | const char * |
186 | | default_emul_bfd_name (void) |
187 | | { |
188 | | abort (); |
189 | | return NULL; |
190 | | } |
191 | | |
192 | | void |
193 | | common_emul_init (void) |
194 | | { |
195 | | this_format = this_emulation->format; |
196 | | |
197 | | if (this_emulation->leading_underscore == 2) |
198 | | this_emulation->leading_underscore = this_format->dfl_leading_underscore; |
199 | | |
200 | | if (this_emulation->default_endian != 2) |
201 | | target_big_endian = this_emulation->default_endian; |
202 | | |
203 | | if (this_emulation->fake_label_name == 0) |
204 | | { |
205 | | if (this_emulation->leading_underscore) |
206 | | this_emulation->fake_label_name = FAKE_LABEL_NAME; |
207 | | else |
208 | | /* What other parameters should we test? */ |
209 | | this_emulation->fake_label_name = "." FAKE_LABEL_NAME; |
210 | | } |
211 | | } |
212 | | #endif |
213 | | |
214 | | void |
215 | | print_version_id (void) |
216 | 0 | { |
217 | 0 | static int printed; |
218 | |
|
219 | 0 | if (printed) |
220 | 0 | return; |
221 | 0 | printed = 1; |
222 | |
|
223 | 0 | fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"), |
224 | 0 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
225 | 0 | } |
226 | | |
227 | | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
228 | | enum compressed_debug_section_type flag_compress_debug |
229 | | = DEFAULT_COMPRESSED_DEBUG_ALGORITHM; |
230 | | #define DEFAULT_COMPRESSED_DEBUG_ALGORITHM_HELP \ |
231 | 0 | DEFAULT_COMPRESSED_DEBUG_ALGORITHM |
232 | | #else |
233 | | #define DEFAULT_COMPRESSED_DEBUG_ALGORITHM_HELP COMPRESS_DEBUG_NONE |
234 | | #endif |
235 | | |
236 | | static void |
237 | | show_usage (FILE * stream) |
238 | 0 | { |
239 | 0 | fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname); |
240 | |
|
241 | 0 | fprintf (stream, _("\ |
242 | 0 | Options:\n\ |
243 | 0 | -a[sub-option...] turn on listings\n\ |
244 | 0 | Sub-options [default hls]:\n\ |
245 | 0 | c omit false conditionals\n\ |
246 | 0 | d omit debugging directives\n\ |
247 | 0 | g include general info\n\ |
248 | 0 | h include high-level source\n\ |
249 | 0 | i include ginsn and synthesized CFI info\n\ |
250 | 0 | l include assembly\n\ |
251 | 0 | m include macro expansions\n\ |
252 | 0 | n omit forms processing\n\ |
253 | 0 | s include symbols\n\ |
254 | 0 | =FILE list to FILE (must be last sub-option)\n")); |
255 | |
|
256 | 0 | fprintf (stream, _("\ |
257 | 0 | --alternate initially turn on alternate macro syntax\n")); |
258 | 0 | fprintf (stream, _("\ |
259 | 0 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi|zstd}]\n\ |
260 | 0 | compress DWARF debug sections\n")), |
261 | 0 | fprintf (stream, _("\ |
262 | 0 | Default: %s\n"), |
263 | 0 | bfd_get_compression_algorithm_name |
264 | 0 | (DEFAULT_COMPRESSED_DEBUG_ALGORITHM_HELP)); |
265 | |
|
266 | 0 | fprintf (stream, _("\ |
267 | 0 | --nocompress-debug-sections\n\ |
268 | 0 | don't compress DWARF debug sections\n")); |
269 | 0 | fprintf (stream, _("\ |
270 | 0 | -D produce assembler debugging messages\n")); |
271 | 0 | fprintf (stream, _("\ |
272 | 0 | --dump-config display how the assembler is configured and then exit\n")); |
273 | 0 | fprintf (stream, _("\ |
274 | 0 | --debug-prefix-map OLD=NEW\n\ |
275 | 0 | map OLD to NEW in debug information\n")); |
276 | 0 | fprintf (stream, _("\ |
277 | 0 | --defsym SYM=VAL define symbol SYM to given value\n")); |
278 | | #ifdef USE_EMULATIONS |
279 | | { |
280 | | int i; |
281 | | const char *def_em; |
282 | | |
283 | | fprintf (stream, "\ |
284 | | --emulation=["); |
285 | | for (i = 0; i < n_emulations - 1; i++) |
286 | | fprintf (stream, "%s | ", emulations[i]->name); |
287 | | fprintf (stream, "%s]\n", emulations[i]->name); |
288 | | |
289 | | def_em = getenv (EMULATION_ENVIRON); |
290 | | if (!def_em) |
291 | | def_em = DEFAULT_EMULATION; |
292 | | fprintf (stream, _("\ |
293 | | emulate output (default %s)\n"), def_em); |
294 | | } |
295 | | #endif |
296 | 0 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
297 | 0 | fprintf (stream, _("\ |
298 | 0 | --execstack require executable stack for this object\n")); |
299 | 0 | fprintf (stream, _("\ |
300 | 0 | --noexecstack don't require executable stack for this object\n")); |
301 | 0 | fprintf (stream, _("\ |
302 | 0 | --size-check=[error|warning]\n\ |
303 | 0 | ELF .size directive check (default --size-check=error)\n")); |
304 | 0 | fprintf (stream, _("\ |
305 | 0 | --elf-stt-common=[no|yes] ")); |
306 | 0 | if (DEFAULT_GENERATE_ELF_STT_COMMON) |
307 | 0 | fprintf (stream, _("(default: yes)\n")); |
308 | 0 | else |
309 | 0 | fprintf (stream, _("(default: no)\n")); |
310 | 0 | fprintf (stream, _("\ |
311 | 0 | generate ELF common symbols with STT_COMMON type\n")); |
312 | 0 | fprintf (stream, _("\ |
313 | 0 | --sectname-subst enable section name substitution sequences\n")); |
314 | |
|
315 | 0 | fprintf (stream, _("\ |
316 | 0 | --generate-missing-build-notes=[no|yes] ")); |
317 | | #if DEFAULT_GENERATE_BUILD_NOTES |
318 | | fprintf (stream, _("(default: yes)\n")); |
319 | | #else |
320 | 0 | fprintf (stream, _("(default: no)\n")); |
321 | 0 | #endif |
322 | 0 | fprintf (stream, _("\ |
323 | 0 | generate GNU Build notes if none are present in the input\n")); |
324 | 0 | fprintf (stream, _("\ |
325 | 0 | --gsframe generate SFrame stack trace information\n")); |
326 | 0 | # if defined (TARGET_USE_SCFI) && defined (TARGET_USE_GINSN) |
327 | 0 | fprintf (stream, _("\ |
328 | 0 | --scfi=experimental Synthesize DWARF CFI for hand-written asm\n\ |
329 | 0 | (experimental support)\n")); |
330 | 0 | # endif |
331 | 0 | #endif /* OBJ_ELF */ |
332 | |
|
333 | 0 | fprintf (stream, _("\ |
334 | 0 | -f skip whitespace and comment preprocessing\n")); |
335 | 0 | fprintf (stream, _("\ |
336 | 0 | -g --gen-debug generate debugging information\n")); |
337 | 0 | fprintf (stream, _("\ |
338 | 0 | --gstabs generate STABS debugging information\n")); |
339 | 0 | fprintf (stream, _("\ |
340 | 0 | --gstabs+ generate STABS debug info with GNU extensions\n")); |
341 | 0 | fprintf (stream, _("\ |
342 | 0 | --gdwarf-<N> generate DWARF<N> debugging information. 2 <= <N> <= 5\n")); |
343 | 0 | fprintf (stream, _("\ |
344 | 0 | --gdwarf-cie-version=<N> generate version 1, 3 or 4 DWARF CIEs\n")); |
345 | 0 | fprintf (stream, _("\ |
346 | 0 | --gdwarf-sections generate per-function section names for DWARF line information\n")); |
347 | | #if defined (TE_PE) && defined (O_secrel) |
348 | | fprintf (stream, _("\ |
349 | | --gcodeview generate CodeView debugging information\n")); |
350 | | #endif |
351 | 0 | fprintf (stream, _("\ |
352 | 0 | --hash-size=<N> ignored\n")); |
353 | 0 | fprintf (stream, _("\ |
354 | 0 | --help show all assembler options\n")); |
355 | 0 | fprintf (stream, _("\ |
356 | 0 | --target-help show target specific options\n")); |
357 | 0 | fprintf (stream, _("\ |
358 | 0 | -I DIR add DIR to search list for .include directives\n")); |
359 | 0 | fprintf (stream, _("\ |
360 | 0 | -J don't warn about signed overflow\n")); |
361 | 0 | fprintf (stream, _("\ |
362 | 0 | -K warn when differences altered for long displacements\n")); |
363 | 0 | fprintf (stream, _("\ |
364 | 0 | -L,--keep-locals keep local symbols (e.g. starting with `L')\n")); |
365 | 0 | fprintf (stream, _("\ |
366 | 0 | -M,--mri assemble in MRI compatibility mode\n")); |
367 | 0 | fprintf (stream, _("\ |
368 | 0 | --MD FILE write dependency information in FILE (default none)\n")); |
369 | 0 | fprintf (stream, _("\ |
370 | 0 | --multibyte-handling=<method>\n\ |
371 | 0 | what to do with multibyte characters encountered in the input\n")); |
372 | 0 | fprintf (stream, _("\ |
373 | 0 | -nocpp ignored\n")); |
374 | 0 | fprintf (stream, _("\ |
375 | 0 | -no-pad-sections do not pad the end of sections to alignment boundaries\n")); |
376 | 0 | fprintf (stream, _("\ |
377 | 0 | -o OBJFILE name the object-file output OBJFILE (default a.out)\n")); |
378 | 0 | fprintf (stream, _("\ |
379 | 0 | -R fold data section into text section\n")); |
380 | 0 | fprintf (stream, _("\ |
381 | 0 | --reduce-memory-overheads ignored\n")); |
382 | 0 | fprintf (stream, _("\ |
383 | 0 | --statistics print various measured statistics from execution\n")); |
384 | 0 | fprintf (stream, _("\ |
385 | 0 | --strip-local-absolute strip local absolute symbols\n")); |
386 | 0 | fprintf (stream, _("\ |
387 | 0 | --traditional-format Use same format as native assembler when possible\n")); |
388 | 0 | fprintf (stream, _("\ |
389 | 0 | --version print assembler version number and exit\n")); |
390 | 0 | fprintf (stream, _("\ |
391 | 0 | -W --no-warn suppress warnings\n")); |
392 | 0 | fprintf (stream, _("\ |
393 | 0 | --warn don't suppress warnings\n")); |
394 | 0 | fprintf (stream, _("\ |
395 | 0 | --fatal-warnings treat warnings as errors\n")); |
396 | | #ifdef HAVE_ITBL_CPU |
397 | | fprintf (stream, _("\ |
398 | | --itbl INSTTBL extend instruction set to include instructions\n\ |
399 | | matching the specifications defined in file INSTTBL\n")); |
400 | | #endif |
401 | 0 | fprintf (stream, _("\ |
402 | 0 | -w ignored\n")); |
403 | 0 | fprintf (stream, _("\ |
404 | 0 | -X ignored\n")); |
405 | 0 | fprintf (stream, _("\ |
406 | 0 | -Z generate object file even after errors\n")); |
407 | 0 | fprintf (stream, _("\ |
408 | 0 | --listing-lhs-width set the width in words of the output data column of\n\ |
409 | 0 | the listing\n")); |
410 | 0 | fprintf (stream, _("\ |
411 | 0 | --listing-lhs-width2 set the width in words of the continuation lines\n\ |
412 | 0 | of the output data column; ignored if smaller than\n\ |
413 | 0 | the width of the first line\n")); |
414 | 0 | fprintf (stream, _("\ |
415 | 0 | --listing-rhs-width set the max width in characters of the lines from\n\ |
416 | 0 | the source file\n")); |
417 | 0 | fprintf (stream, _("\ |
418 | 0 | --listing-cont-lines set the maximum number of continuation lines used\n\ |
419 | 0 | for the output data column of the listing\n")); |
420 | 0 | fprintf (stream, _("\ |
421 | 0 | @FILE read options from FILE\n")); |
422 | |
|
423 | 0 | md_show_usage (stream); |
424 | |
|
425 | 0 | fputc ('\n', stream); |
426 | |
|
427 | 0 | if (REPORT_BUGS_TO[0] && stream == stdout) |
428 | 0 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
429 | 0 | } |
430 | | |
431 | | /* Since it is easy to do here we interpret the special arg "-" |
432 | | to mean "use stdin" and we set that argv[] pointing to "". |
433 | | After we have munged argv[], the only things left are source file |
434 | | name(s) and ""(s) denoting stdin. These file names are used |
435 | | (perhaps more than once) later. |
436 | | |
437 | | check for new machine-dep cmdline options in |
438 | | md_parse_option definitions in config/tc-*.c. */ |
439 | | |
440 | | static void |
441 | | parse_args (int * pargc, char *** pargv) |
442 | 0 | { |
443 | 0 | int old_argc; |
444 | 0 | int new_argc; |
445 | 0 | char ** old_argv; |
446 | 0 | char ** new_argv; |
447 | | /* Starting the short option string with '-' is for programs that |
448 | | expect options and other ARGV-elements in any order and that care about |
449 | | the ordering of the two. We describe each non-option ARGV-element |
450 | | as if it were the argument of an option with character code 1. */ |
451 | 0 | char *shortopts; |
452 | 0 | extern const char *md_shortopts; |
453 | 0 | static const char std_shortopts[] = |
454 | 0 | { |
455 | 0 | '-', 'J', |
456 | | #ifndef WORKING_DOT_WORD |
457 | | /* -K is not meaningful if .word is not being hacked. */ |
458 | | 'K', |
459 | | #endif |
460 | 0 | 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':', |
461 | 0 | #ifndef VMS |
462 | | /* -v takes an argument on VMS, so we don't make it a generic |
463 | | option. */ |
464 | 0 | 'v', |
465 | 0 | #endif |
466 | 0 | 'w', 'X', |
467 | | #ifdef HAVE_ITBL_CPU |
468 | | /* New option for extending instruction set (see also --itbl below). */ |
469 | | 't', ':', |
470 | | #endif |
471 | 0 | '\0' |
472 | 0 | }; |
473 | 0 | struct option *longopts; |
474 | 0 | extern struct option md_longopts[]; |
475 | 0 | extern size_t md_longopts_size; |
476 | | /* Codes used for the long options with no short synonyms. */ |
477 | 0 | enum option_values |
478 | 0 | { |
479 | 0 | OPTION_HELP = OPTION_STD_BASE, |
480 | 0 | OPTION_NOCPP, |
481 | 0 | OPTION_STATISTICS, |
482 | 0 | OPTION_VERSION, |
483 | 0 | OPTION_DUMPCONFIG, |
484 | 0 | OPTION_VERBOSE, |
485 | 0 | OPTION_EMULATION, |
486 | 0 | OPTION_DEBUG_PREFIX_MAP, |
487 | 0 | OPTION_DEFSYM, |
488 | 0 | OPTION_LISTING_LHS_WIDTH, |
489 | 0 | OPTION_LISTING_LHS_WIDTH2, /* = STD_BASE + 10 */ |
490 | 0 | OPTION_LISTING_RHS_WIDTH, |
491 | 0 | OPTION_LISTING_CONT_LINES, |
492 | 0 | OPTION_DEPFILE, |
493 | 0 | OPTION_GSTABS, |
494 | 0 | OPTION_GSTABS_PLUS, |
495 | 0 | OPTION_GDWARF_2, |
496 | 0 | OPTION_GDWARF_3, |
497 | 0 | OPTION_GDWARF_4, |
498 | 0 | OPTION_GDWARF_5, |
499 | 0 | OPTION_GDWARF_SECTIONS, /* = STD_BASE + 20 */ |
500 | 0 | OPTION_GDWARF_CIE_VERSION, |
501 | 0 | OPTION_GCODEVIEW, |
502 | 0 | OPTION_STRIP_LOCAL_ABSOLUTE, |
503 | 0 | OPTION_TRADITIONAL_FORMAT, |
504 | 0 | OPTION_WARN, |
505 | 0 | OPTION_TARGET_HELP, |
506 | 0 | OPTION_EXECSTACK, |
507 | 0 | OPTION_NOEXECSTACK, |
508 | 0 | OPTION_SIZE_CHECK, |
509 | 0 | OPTION_ELF_STT_COMMON, |
510 | 0 | OPTION_ELF_BUILD_NOTES, /* = STD_BASE + 30 */ |
511 | 0 | OPTION_SECTNAME_SUBST, |
512 | 0 | OPTION_ALTERNATE, |
513 | 0 | OPTION_AL, |
514 | 0 | OPTION_HASH_TABLE_SIZE, |
515 | 0 | OPTION_REDUCE_MEMORY_OVERHEADS, |
516 | 0 | OPTION_WARN_FATAL, |
517 | 0 | OPTION_COMPRESS_DEBUG, |
518 | 0 | OPTION_NOCOMPRESS_DEBUG, |
519 | 0 | OPTION_NO_PAD_SECTIONS, |
520 | 0 | OPTION_MULTIBYTE_HANDLING, /* = STD_BASE + 40 */ |
521 | 0 | OPTION_SFRAME, |
522 | 0 | OPTION_SCFI |
523 | | /* When you add options here, check that they do |
524 | | not collide with OPTION_MD_BASE. See as.h. */ |
525 | 0 | }; |
526 | |
|
527 | 0 | static const struct option std_longopts[] = |
528 | 0 | { |
529 | | /* Note: commas are placed at the start of the line rather than |
530 | | the end of the preceding line so that it is simpler to |
531 | | selectively add and remove lines from this list. */ |
532 | 0 | {"alternate", no_argument, NULL, OPTION_ALTERNATE} |
533 | | /* The entry for "a" is here to prevent getopt_long_only() from |
534 | | considering that -a is an abbreviation for --alternate. This is |
535 | | necessary because -a=<FILE> is a valid switch but getopt would |
536 | | normally reject it since --alternate does not take an argument. */ |
537 | 0 | ,{"a", optional_argument, NULL, 'a'} |
538 | | /* Handle -al=<FILE>. */ |
539 | 0 | ,{"al", optional_argument, NULL, OPTION_AL} |
540 | 0 | ,{"compress-debug-sections", optional_argument, NULL, OPTION_COMPRESS_DEBUG} |
541 | 0 | ,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG} |
542 | 0 | ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP} |
543 | 0 | ,{"defsym", required_argument, NULL, OPTION_DEFSYM} |
544 | 0 | ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG} |
545 | 0 | ,{"emulation", required_argument, NULL, OPTION_EMULATION} |
546 | 0 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
547 | 0 | ,{"execstack", no_argument, NULL, OPTION_EXECSTACK} |
548 | 0 | ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK} |
549 | 0 | ,{"size-check", required_argument, NULL, OPTION_SIZE_CHECK} |
550 | 0 | ,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON} |
551 | 0 | ,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST} |
552 | 0 | ,{"generate-missing-build-notes", required_argument, NULL, OPTION_ELF_BUILD_NOTES} |
553 | 0 | ,{"gsframe", no_argument, NULL, OPTION_SFRAME} |
554 | 0 | # if defined (TARGET_USE_SCFI) && defined (TARGET_USE_GINSN) |
555 | 0 | ,{"scfi", required_argument, NULL, OPTION_SCFI} |
556 | 0 | # endif |
557 | 0 | #endif /* OBJ_ELF || OBJ_MAYBE_ELF. */ |
558 | 0 | ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL} |
559 | 0 | ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF_2} |
560 | 0 | ,{"gdwarf-3", no_argument, NULL, OPTION_GDWARF_3} |
561 | 0 | ,{"gdwarf-4", no_argument, NULL, OPTION_GDWARF_4} |
562 | 0 | ,{"gdwarf-5", no_argument, NULL, OPTION_GDWARF_5} |
563 | | /* GCC uses --gdwarf-2 but GAS used to to use --gdwarf2, |
564 | | so we keep it here for backwards compatibility. */ |
565 | 0 | ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF_2} |
566 | 0 | ,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS} |
567 | 0 | ,{"gdwarf-cie-version", required_argument, NULL, OPTION_GDWARF_CIE_VERSION} |
568 | | #if defined (TE_PE) && defined (O_secrel) |
569 | | ,{"gcodeview", no_argument, NULL, OPTION_GCODEVIEW} |
570 | | #endif |
571 | 0 | ,{"gen-debug", no_argument, NULL, 'g'} |
572 | 0 | ,{"gstabs", no_argument, NULL, OPTION_GSTABS} |
573 | 0 | ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS} |
574 | 0 | ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE} |
575 | 0 | ,{"help", no_argument, NULL, OPTION_HELP} |
576 | | #ifdef HAVE_ITBL_CPU |
577 | | /* New option for extending instruction set (see also -t above). |
578 | | The "-t file" or "--itbl file" option extends the basic set of |
579 | | valid instructions by reading "file", a text file containing a |
580 | | list of instruction formats. The additional opcodes and their |
581 | | formats are added to the built-in set of instructions, and |
582 | | mnemonics for new registers may also be defined. */ |
583 | | ,{"itbl", required_argument, NULL, 't'} |
584 | | #endif |
585 | | /* getopt allows abbreviations, so we do this to stop it from |
586 | | treating -k as an abbreviation for --keep-locals. Some |
587 | | ports use -k to enable PIC assembly. */ |
588 | 0 | ,{"keep-locals", no_argument, NULL, 'L'} |
589 | 0 | ,{"keep-locals", no_argument, NULL, 'L'} |
590 | 0 | ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH} |
591 | 0 | ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2} |
592 | 0 | ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH} |
593 | 0 | ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES} |
594 | 0 | ,{"MD", required_argument, NULL, OPTION_DEPFILE} |
595 | 0 | ,{"mri", no_argument, NULL, 'M'} |
596 | 0 | ,{"nocpp", no_argument, NULL, OPTION_NOCPP} |
597 | 0 | ,{"no-pad-sections", no_argument, NULL, OPTION_NO_PAD_SECTIONS} |
598 | 0 | ,{"no-warn", no_argument, NULL, 'W'} |
599 | 0 | ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS} |
600 | 0 | ,{"statistics", no_argument, NULL, OPTION_STATISTICS} |
601 | 0 | ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE} |
602 | 0 | ,{"version", no_argument, NULL, OPTION_VERSION} |
603 | 0 | ,{"verbose", no_argument, NULL, OPTION_VERBOSE} |
604 | 0 | ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP} |
605 | 0 | ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT} |
606 | 0 | ,{"warn", no_argument, NULL, OPTION_WARN} |
607 | 0 | ,{"multibyte-handling", required_argument, NULL, OPTION_MULTIBYTE_HANDLING} |
608 | 0 | }; |
609 | | |
610 | | /* Construct the option lists from the standard list and the target |
611 | | dependent list. Include space for an extra NULL option and |
612 | | always NULL terminate. */ |
613 | 0 | shortopts = concat (std_shortopts, md_shortopts, (char *) NULL); |
614 | 0 | longopts = (struct option *) xmalloc (sizeof (std_longopts) |
615 | 0 | + md_longopts_size + sizeof (struct option)); |
616 | 0 | memcpy (longopts, std_longopts, sizeof (std_longopts)); |
617 | 0 | memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size); |
618 | 0 | memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size, |
619 | 0 | 0, sizeof (struct option)); |
620 | | |
621 | | /* Make a local copy of the old argv. */ |
622 | 0 | old_argc = *pargc; |
623 | 0 | old_argv = *pargv; |
624 | | |
625 | | /* Initialize a new argv that contains no options. */ |
626 | 0 | new_argv = notes_alloc (sizeof (char *) * (old_argc + 1)); |
627 | 0 | new_argv[0] = old_argv[0]; |
628 | 0 | new_argc = 1; |
629 | 0 | new_argv[new_argc] = NULL; |
630 | |
|
631 | 0 | while (1) |
632 | 0 | { |
633 | | /* getopt_long_only is like getopt_long, but '-' as well as '--' can |
634 | | indicate a long option. */ |
635 | 0 | int longind; |
636 | 0 | int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts, |
637 | 0 | &longind); |
638 | |
|
639 | 0 | if (optc == -1) |
640 | 0 | break; |
641 | | |
642 | 0 | switch (optc) |
643 | 0 | { |
644 | 0 | default: |
645 | | /* md_parse_option should return 1 if it recognizes optc, |
646 | | 0 if not. */ |
647 | 0 | if (md_parse_option (optc, optarg) != 0) |
648 | 0 | break; |
649 | | /* `-v' isn't included in the general short_opts list, so check for |
650 | | it explicitly here before deciding we've gotten a bad argument. */ |
651 | 0 | if (optc == 'v') |
652 | 0 | { |
653 | | #ifdef VMS |
654 | | /* Telling getopt to treat -v's value as optional can result |
655 | | in it picking up a following filename argument here. The |
656 | | VMS code in md_parse_option can return 0 in that case, |
657 | | but it has no way of pushing the filename argument back. */ |
658 | | if (optarg && *optarg) |
659 | | new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL; |
660 | | else |
661 | | #else |
662 | 0 | case 'v': |
663 | 0 | #endif |
664 | 0 | case OPTION_VERBOSE: |
665 | 0 | print_version_id (); |
666 | 0 | verbose = 1; |
667 | 0 | break; |
668 | 0 | } |
669 | 0 | else |
670 | 0 | as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : ""); |
671 | | /* Fall through. */ |
672 | | |
673 | 0 | case '?': |
674 | 0 | exit (EXIT_FAILURE); |
675 | | |
676 | 0 | case 1: /* File name. */ |
677 | 0 | if (!strcmp (optarg, "-")) |
678 | 0 | optarg = (char *) ""; |
679 | 0 | new_argv[new_argc++] = optarg; |
680 | 0 | new_argv[new_argc] = NULL; |
681 | 0 | break; |
682 | | |
683 | 0 | case OPTION_TARGET_HELP: |
684 | 0 | md_show_usage (stdout); |
685 | 0 | exit (EXIT_SUCCESS); |
686 | | |
687 | 0 | case OPTION_HELP: |
688 | 0 | show_usage (stdout); |
689 | 0 | exit (EXIT_SUCCESS); |
690 | | |
691 | 0 | case OPTION_NOCPP: |
692 | 0 | break; |
693 | | |
694 | 0 | case OPTION_NO_PAD_SECTIONS: |
695 | 0 | do_not_pad_sections_to_alignment = 1; |
696 | 0 | break; |
697 | | |
698 | 0 | case OPTION_STATISTICS: |
699 | 0 | flag_print_statistics = 1; |
700 | 0 | break; |
701 | | |
702 | 0 | case OPTION_STRIP_LOCAL_ABSOLUTE: |
703 | 0 | flag_strip_local_absolute = 1; |
704 | 0 | break; |
705 | | |
706 | 0 | case OPTION_TRADITIONAL_FORMAT: |
707 | 0 | flag_traditional_format = 1; |
708 | 0 | break; |
709 | | |
710 | 0 | case OPTION_MULTIBYTE_HANDLING: |
711 | 0 | if (strcmp (optarg, "allow") == 0) |
712 | 0 | multibyte_handling = multibyte_allow; |
713 | 0 | else if (strcmp (optarg, "warn") == 0) |
714 | 0 | multibyte_handling = multibyte_warn; |
715 | 0 | else if (strcmp (optarg, "warn-sym-only") == 0) |
716 | 0 | multibyte_handling = multibyte_warn_syms; |
717 | 0 | else if (strcmp (optarg, "warn_sym_only") == 0) |
718 | 0 | multibyte_handling = multibyte_warn_syms; |
719 | 0 | else |
720 | 0 | as_fatal (_("unexpected argument to --multibyte-input-option: '%s'"), optarg); |
721 | 0 | break; |
722 | | |
723 | 0 | case OPTION_VERSION: |
724 | | /* This output is intended to follow the GNU standards document. */ |
725 | 0 | printf (_("GNU assembler %s\n"), BFD_VERSION_STRING); |
726 | 0 | printf (_("Copyright (C) 2024 Free Software Foundation, Inc.\n")); |
727 | 0 | printf (_("\ |
728 | 0 | This program is free software; you may redistribute it under the terms of\n\ |
729 | 0 | the GNU General Public License version 3 or later.\n\ |
730 | 0 | This program has absolutely no warranty.\n")); |
731 | | #ifdef TARGET_WITH_CPU |
732 | | printf (_("This assembler was configured for a target of `%s' " |
733 | | "and default,\ncpu type `%s'.\n"), |
734 | | TARGET_ALIAS, TARGET_WITH_CPU); |
735 | | #else |
736 | 0 | printf (_("This assembler was configured for a target of `%s'.\n"), |
737 | 0 | TARGET_ALIAS); |
738 | 0 | #endif |
739 | 0 | exit (EXIT_SUCCESS); |
740 | | |
741 | 0 | case OPTION_EMULATION: |
742 | | #ifdef USE_EMULATIONS |
743 | | if (strcmp (optarg, this_emulation->name)) |
744 | | as_fatal (_("multiple emulation names specified")); |
745 | | #else |
746 | 0 | as_fatal (_("emulations not handled in this configuration")); |
747 | 0 | #endif |
748 | 0 | break; |
749 | | |
750 | 0 | case OPTION_DUMPCONFIG: |
751 | 0 | fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS); |
752 | 0 | fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL); |
753 | 0 | fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU); |
754 | | #ifdef TARGET_OBJ_FORMAT |
755 | | fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT); |
756 | | #endif |
757 | 0 | #ifdef TARGET_FORMAT |
758 | 0 | fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT); |
759 | 0 | #endif |
760 | 0 | exit (EXIT_SUCCESS); |
761 | | |
762 | 0 | case OPTION_COMPRESS_DEBUG: |
763 | 0 | if (optarg) |
764 | 0 | { |
765 | 0 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
766 | 0 | flag_compress_debug = bfd_get_compression_algorithm (optarg); |
767 | 0 | #ifndef HAVE_ZSTD |
768 | 0 | if (flag_compress_debug == COMPRESS_DEBUG_ZSTD) |
769 | 0 | as_fatal (_ ("--compress-debug-sections=zstd: gas is not " |
770 | 0 | "built with zstd support")); |
771 | 0 | #endif |
772 | 0 | if (flag_compress_debug == COMPRESS_UNKNOWN) |
773 | 0 | as_fatal (_("Invalid --compress-debug-sections option: `%s'"), |
774 | 0 | optarg); |
775 | | #else |
776 | | as_fatal (_("--compress-debug-sections=%s is unsupported"), |
777 | | optarg); |
778 | | #endif |
779 | 0 | } |
780 | 0 | else |
781 | 0 | flag_compress_debug = DEFAULT_COMPRESSED_DEBUG_ALGORITHM; |
782 | 0 | break; |
783 | | |
784 | 0 | case OPTION_NOCOMPRESS_DEBUG: |
785 | 0 | flag_compress_debug = COMPRESS_DEBUG_NONE; |
786 | 0 | break; |
787 | | |
788 | 0 | case OPTION_DEBUG_PREFIX_MAP: |
789 | 0 | add_debug_prefix_map (optarg); |
790 | 0 | break; |
791 | | |
792 | 0 | case OPTION_DEFSYM: |
793 | 0 | { |
794 | 0 | char *s; |
795 | 0 | valueT i; |
796 | 0 | struct defsym_list *n; |
797 | |
|
798 | 0 | for (s = optarg; *s != '\0' && *s != '='; s++) |
799 | 0 | ; |
800 | 0 | if (*s == '\0') |
801 | 0 | as_fatal (_("bad defsym; format is --defsym name=value")); |
802 | 0 | *s++ = '\0'; |
803 | 0 | i = bfd_scan_vma (s, (const char **) NULL, 0); |
804 | 0 | n = XNEW (struct defsym_list); |
805 | 0 | n->next = defsyms; |
806 | 0 | n->name = optarg; |
807 | 0 | n->value = i; |
808 | 0 | defsyms = n; |
809 | 0 | } |
810 | 0 | break; |
811 | | |
812 | | #ifdef HAVE_ITBL_CPU |
813 | | case 't': |
814 | | { |
815 | | /* optarg is the name of the file containing the instruction |
816 | | formats, opcodes, register names, etc. */ |
817 | | if (optarg == NULL) |
818 | | { |
819 | | as_warn (_("no file name following -t option")); |
820 | | break; |
821 | | } |
822 | | |
823 | | /* Parse the file and add the new instructions to our internal |
824 | | table. If multiple instruction tables are specified, the |
825 | | information from this table gets appended onto the existing |
826 | | internal table. */ |
827 | | if (itbl_parse (optarg) != 0) |
828 | | as_fatal (_("failed to read instruction table %s\n"), |
829 | | optarg); |
830 | | } |
831 | | break; |
832 | | #endif |
833 | | |
834 | 0 | case OPTION_DEPFILE: |
835 | 0 | start_dependencies (optarg); |
836 | 0 | break; |
837 | | |
838 | 0 | case 'g': |
839 | | /* Some backends, eg Alpha and Mips, use the -g switch for their |
840 | | own purposes. So we check here for an explicit -g and allow |
841 | | the backend to decide if it wants to process it. */ |
842 | 0 | if ( old_argv[optind - 1][1] == 'g' |
843 | 0 | && md_parse_option (optc, optarg)) |
844 | 0 | continue; |
845 | | |
846 | | /* We end up here for any -gsomething-not-already-a-long-option. |
847 | | give some useful feedback on not (yet) supported -gdwarfxxx |
848 | | versions/sections/options. */ |
849 | 0 | if (startswith (old_argv[optind - 1], "-gdwarf")) |
850 | 0 | as_fatal (_("unknown DWARF option %s\n"), old_argv[optind - 1]); |
851 | 0 | else if (old_argv[optind - 1][1] == 'g' && optarg != NULL) |
852 | 0 | as_fatal (_("unknown option `%s'"), old_argv[optind - 1]); |
853 | | |
854 | 0 | if (md_debug_format_selector) |
855 | 0 | debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions); |
856 | 0 | else if (IS_ELF) |
857 | 0 | { |
858 | 0 | debug_type = DEBUG_DWARF2; |
859 | 0 | dwarf_level = 2; |
860 | 0 | } |
861 | 0 | else |
862 | 0 | debug_type = DEBUG_STABS; |
863 | 0 | break; |
864 | | |
865 | 0 | case OPTION_GSTABS_PLUS: |
866 | 0 | use_gnu_debug_info_extensions = 1; |
867 | | /* Fall through. */ |
868 | 0 | case OPTION_GSTABS: |
869 | 0 | debug_type = DEBUG_STABS; |
870 | 0 | break; |
871 | | |
872 | 0 | case OPTION_GDWARF_2: |
873 | 0 | debug_type = DEBUG_DWARF2; |
874 | 0 | dwarf_level = 2; |
875 | 0 | break; |
876 | | |
877 | 0 | case OPTION_GDWARF_3: |
878 | 0 | debug_type = DEBUG_DWARF2; |
879 | 0 | dwarf_level = 3; |
880 | 0 | break; |
881 | | |
882 | 0 | case OPTION_GDWARF_4: |
883 | 0 | debug_type = DEBUG_DWARF2; |
884 | 0 | dwarf_level = 4; |
885 | 0 | break; |
886 | | |
887 | 0 | case OPTION_GDWARF_5: |
888 | 0 | debug_type = DEBUG_DWARF2; |
889 | 0 | dwarf_level = 5; |
890 | 0 | break; |
891 | | |
892 | 0 | case OPTION_GDWARF_SECTIONS: |
893 | 0 | flag_dwarf_sections = true; |
894 | 0 | break; |
895 | | |
896 | | #if defined (TE_PE) && defined (O_secrel) |
897 | | case OPTION_GCODEVIEW: |
898 | | debug_type = DEBUG_CODEVIEW; |
899 | | break; |
900 | | #endif |
901 | | |
902 | 0 | case OPTION_GDWARF_CIE_VERSION: |
903 | 0 | flag_dwarf_cie_version = atoi (optarg); |
904 | | /* The available CIE versions are 1 (DWARF 2), 3 (DWARF 3), and 4 |
905 | | (DWARF 4 and 5). */ |
906 | 0 | if (flag_dwarf_cie_version < 1 |
907 | 0 | || flag_dwarf_cie_version == 2 |
908 | 0 | || flag_dwarf_cie_version > 4) |
909 | 0 | as_fatal (_("Invalid --gdwarf-cie-version `%s'"), optarg); |
910 | 0 | switch (flag_dwarf_cie_version) |
911 | 0 | { |
912 | 0 | case 1: |
913 | 0 | if (dwarf_level < 2) |
914 | 0 | dwarf_level = 2; |
915 | 0 | break; |
916 | 0 | case 3: |
917 | 0 | if (dwarf_level < 3) |
918 | 0 | dwarf_level = 3; |
919 | 0 | break; |
920 | 0 | default: |
921 | 0 | if (dwarf_level < 4) |
922 | 0 | dwarf_level = 4; |
923 | 0 | break; |
924 | 0 | } |
925 | 0 | break; |
926 | | |
927 | 0 | case 'J': |
928 | 0 | flag_signed_overflow_ok = 1; |
929 | 0 | break; |
930 | | |
931 | | #ifndef WORKING_DOT_WORD |
932 | | case 'K': |
933 | | flag_warn_displacement = 1; |
934 | | break; |
935 | | #endif |
936 | 0 | case 'L': |
937 | 0 | flag_keep_locals = 1; |
938 | 0 | break; |
939 | | |
940 | 0 | case OPTION_LISTING_LHS_WIDTH: |
941 | 0 | listing_lhs_width = atoi (optarg); |
942 | 0 | if (listing_lhs_width_second < listing_lhs_width) |
943 | 0 | listing_lhs_width_second = listing_lhs_width; |
944 | 0 | break; |
945 | 0 | case OPTION_LISTING_LHS_WIDTH2: |
946 | 0 | { |
947 | 0 | int tmp = atoi (optarg); |
948 | |
|
949 | 0 | if (tmp > listing_lhs_width) |
950 | 0 | listing_lhs_width_second = tmp; |
951 | 0 | } |
952 | 0 | break; |
953 | 0 | case OPTION_LISTING_RHS_WIDTH: |
954 | 0 | listing_rhs_width = atoi (optarg); |
955 | 0 | break; |
956 | 0 | case OPTION_LISTING_CONT_LINES: |
957 | 0 | listing_lhs_cont_lines = atoi (optarg); |
958 | 0 | break; |
959 | | |
960 | 0 | case 'M': |
961 | 0 | flag_mri = 1; |
962 | | #ifdef TC_M68K |
963 | | flag_m68k_mri = 1; |
964 | | #endif |
965 | 0 | break; |
966 | | |
967 | 0 | case 'R': |
968 | 0 | flag_readonly_data_in_text = 1; |
969 | 0 | break; |
970 | | |
971 | 0 | case 'W': |
972 | 0 | flag_no_warnings = 1; |
973 | 0 | break; |
974 | | |
975 | 0 | case OPTION_WARN: |
976 | 0 | flag_no_warnings = 0; |
977 | 0 | flag_fatal_warnings = 0; |
978 | 0 | break; |
979 | | |
980 | 0 | case OPTION_WARN_FATAL: |
981 | 0 | flag_no_warnings = 0; |
982 | 0 | flag_fatal_warnings = 1; |
983 | 0 | break; |
984 | | |
985 | 0 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
986 | 0 | case OPTION_EXECSTACK: |
987 | 0 | flag_execstack = 1; |
988 | 0 | flag_noexecstack = 0; |
989 | 0 | break; |
990 | | |
991 | 0 | case OPTION_NOEXECSTACK: |
992 | 0 | flag_noexecstack = 1; |
993 | 0 | flag_execstack = 0; |
994 | 0 | break; |
995 | | |
996 | 0 | # if defined (TARGET_USE_SCFI) && defined (TARGET_USE_GINSN) |
997 | 0 | case OPTION_SCFI: |
998 | 0 | if (optarg && strcasecmp (optarg, "experimental") == 0) |
999 | 0 | flag_synth_cfi = SYNTH_CFI_EXPERIMENTAL; |
1000 | 0 | else |
1001 | 0 | as_fatal (_("Invalid --scfi= option: `%s'; suggested option: experimental"), |
1002 | 0 | optarg); |
1003 | 0 | break; |
1004 | 0 | # endif |
1005 | | |
1006 | 0 | case OPTION_SIZE_CHECK: |
1007 | 0 | if (strcasecmp (optarg, "error") == 0) |
1008 | 0 | flag_allow_nonconst_size = false; |
1009 | 0 | else if (strcasecmp (optarg, "warning") == 0) |
1010 | 0 | flag_allow_nonconst_size = true; |
1011 | 0 | else |
1012 | 0 | as_fatal (_("Invalid --size-check= option: `%s'"), optarg); |
1013 | 0 | break; |
1014 | | |
1015 | 0 | case OPTION_ELF_STT_COMMON: |
1016 | 0 | if (strcasecmp (optarg, "no") == 0) |
1017 | 0 | flag_use_elf_stt_common = 0; |
1018 | 0 | else if (strcasecmp (optarg, "yes") == 0) |
1019 | 0 | flag_use_elf_stt_common = 1; |
1020 | 0 | else |
1021 | 0 | as_fatal (_("Invalid --elf-stt-common= option: `%s'"), |
1022 | 0 | optarg); |
1023 | 0 | break; |
1024 | | |
1025 | 0 | case OPTION_SECTNAME_SUBST: |
1026 | 0 | flag_sectname_subst = 1; |
1027 | 0 | break; |
1028 | | |
1029 | 0 | case OPTION_ELF_BUILD_NOTES: |
1030 | 0 | if (strcasecmp (optarg, "no") == 0) |
1031 | 0 | flag_generate_build_notes = false; |
1032 | 0 | else if (strcasecmp (optarg, "yes") == 0) |
1033 | 0 | flag_generate_build_notes = true; |
1034 | 0 | else |
1035 | 0 | as_fatal (_("Invalid --generate-missing-build-notes option: `%s'"), |
1036 | 0 | optarg); |
1037 | 0 | break; |
1038 | | |
1039 | 0 | case OPTION_SFRAME: |
1040 | 0 | flag_gen_sframe = 1; |
1041 | 0 | break; |
1042 | | |
1043 | 0 | #endif /* OBJ_ELF */ |
1044 | | |
1045 | 0 | case 'Z': |
1046 | 0 | flag_always_generate_output = 1; |
1047 | 0 | break; |
1048 | | |
1049 | 0 | case OPTION_AL: |
1050 | 0 | listing |= LISTING_LISTING; |
1051 | 0 | if (optarg) |
1052 | 0 | listing_filename = notes_strdup (optarg); |
1053 | 0 | break; |
1054 | | |
1055 | 0 | case OPTION_ALTERNATE: |
1056 | 0 | optarg = old_argv [optind - 1]; |
1057 | 0 | while (* optarg == '-') |
1058 | 0 | optarg ++; |
1059 | |
|
1060 | 0 | if (strcmp (optarg, "alternate") == 0) |
1061 | 0 | { |
1062 | 0 | flag_macro_alternate = 1; |
1063 | 0 | break; |
1064 | 0 | } |
1065 | 0 | optarg ++; |
1066 | | /* Fall through. */ |
1067 | |
|
1068 | 0 | case 'a': |
1069 | 0 | if (optarg) |
1070 | 0 | { |
1071 | 0 | if (optarg != old_argv[optind] && optarg[-1] == '=') |
1072 | 0 | --optarg; |
1073 | |
|
1074 | 0 | if (md_parse_option (optc, optarg) != 0) |
1075 | 0 | break; |
1076 | | |
1077 | 0 | while (*optarg) |
1078 | 0 | { |
1079 | 0 | switch (*optarg) |
1080 | 0 | { |
1081 | 0 | case 'c': |
1082 | 0 | listing |= LISTING_NOCOND; |
1083 | 0 | break; |
1084 | 0 | case 'd': |
1085 | 0 | listing |= LISTING_NODEBUG; |
1086 | 0 | break; |
1087 | 0 | case 'g': |
1088 | 0 | listing |= LISTING_GENERAL; |
1089 | 0 | break; |
1090 | 0 | case 'h': |
1091 | 0 | listing |= LISTING_HLL; |
1092 | 0 | break; |
1093 | 0 | case 'i': |
1094 | 0 | listing |= LISTING_GINSN_SCFI; |
1095 | 0 | break; |
1096 | 0 | case 'l': |
1097 | 0 | listing |= LISTING_LISTING; |
1098 | 0 | break; |
1099 | 0 | case 'm': |
1100 | 0 | listing |= LISTING_MACEXP; |
1101 | 0 | break; |
1102 | 0 | case 'n': |
1103 | 0 | listing |= LISTING_NOFORM; |
1104 | 0 | break; |
1105 | 0 | case 's': |
1106 | 0 | listing |= LISTING_SYMBOLS; |
1107 | 0 | break; |
1108 | 0 | case '=': |
1109 | 0 | listing_filename = notes_strdup (optarg + 1); |
1110 | 0 | optarg += strlen (listing_filename); |
1111 | 0 | break; |
1112 | 0 | default: |
1113 | 0 | as_fatal (_("invalid listing option `%c'"), *optarg); |
1114 | 0 | break; |
1115 | 0 | } |
1116 | 0 | optarg++; |
1117 | 0 | } |
1118 | 0 | } |
1119 | 0 | if (!listing) |
1120 | 0 | listing = LISTING_DEFAULT; |
1121 | 0 | break; |
1122 | | |
1123 | 0 | case 'D': |
1124 | | /* DEBUG is implemented: it debugs different |
1125 | | things from other people's assemblers. */ |
1126 | 0 | flag_debug = 1; |
1127 | 0 | break; |
1128 | | |
1129 | 0 | case 'f': |
1130 | 0 | flag_no_comments = 1; |
1131 | 0 | break; |
1132 | | |
1133 | 0 | case 'I': |
1134 | 0 | { /* Include file directory. */ |
1135 | 0 | char *temp = notes_strdup (optarg); |
1136 | |
|
1137 | 0 | add_include_dir (temp); |
1138 | 0 | break; |
1139 | 0 | } |
1140 | | |
1141 | 0 | case 'o': |
1142 | 0 | out_file_name = notes_strdup (optarg); |
1143 | 0 | break; |
1144 | | |
1145 | 0 | case 'w': |
1146 | 0 | break; |
1147 | | |
1148 | 0 | case 'X': |
1149 | | /* -X means treat warnings as errors. */ |
1150 | 0 | break; |
1151 | | |
1152 | 0 | case OPTION_REDUCE_MEMORY_OVERHEADS: |
1153 | 0 | break; |
1154 | | |
1155 | 0 | case OPTION_HASH_TABLE_SIZE: |
1156 | 0 | break; |
1157 | 0 | } |
1158 | 0 | } |
1159 | | |
1160 | 0 | free (shortopts); |
1161 | 0 | free (longopts); |
1162 | |
|
1163 | 0 | *pargc = new_argc; |
1164 | 0 | *pargv = new_argv; |
1165 | |
|
1166 | | #ifdef md_after_parse_args |
1167 | | md_after_parse_args (); |
1168 | | #endif |
1169 | 0 | } |
1170 | | |
1171 | | static void |
1172 | | dump_statistics (void) |
1173 | 0 | { |
1174 | 0 | long run_time = get_run_time () - start_time; |
1175 | |
|
1176 | 0 | fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"), |
1177 | 0 | myname, run_time / 1000000, run_time % 1000000); |
1178 | |
|
1179 | 0 | subsegs_print_statistics (stderr); |
1180 | 0 | write_print_statistics (stderr); |
1181 | 0 | symbol_print_statistics (stderr); |
1182 | 0 | read_print_statistics (stderr); |
1183 | |
|
1184 | 0 | #ifdef tc_print_statistics |
1185 | 0 | tc_print_statistics (stderr); |
1186 | 0 | #endif |
1187 | |
|
1188 | | #ifdef obj_print_statistics |
1189 | | obj_print_statistics (stderr); |
1190 | | #endif |
1191 | 0 | } |
1192 | | |
1193 | | /* Here to attempt 1 pass over each input file. |
1194 | | We scan argv[*] looking for filenames or exactly "" which is |
1195 | | shorthand for stdin. Any argv that is NULL is not a file-name. |
1196 | | We set need_pass_2 TRUE if, after this, we still have unresolved |
1197 | | expressions of the form (unknown value)+-(unknown value). |
1198 | | |
1199 | | Note the un*x semantics: there is only 1 logical input file, but it |
1200 | | may be a catenation of many 'physical' input files. */ |
1201 | | |
1202 | | static void |
1203 | | perform_an_assembly_pass (int argc, char ** argv) |
1204 | 736 | { |
1205 | 736 | int saw_a_file = 0; |
1206 | 736 | #ifndef OBJ_MACH_O |
1207 | 736 | flagword applicable; |
1208 | 736 | #endif |
1209 | | |
1210 | 736 | need_pass_2 = 0; |
1211 | | |
1212 | 736 | #ifndef OBJ_MACH_O |
1213 | | /* Create the standard sections, and those the assembler uses |
1214 | | internally. */ |
1215 | 736 | text_section = subseg_new (TEXT_SECTION_NAME, 0); |
1216 | 736 | data_section = subseg_new (DATA_SECTION_NAME, 0); |
1217 | 736 | bss_section = subseg_new (BSS_SECTION_NAME, 0); |
1218 | | /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed |
1219 | | to have relocs, otherwise we don't find out in time. */ |
1220 | 736 | applicable = bfd_applicable_section_flags (stdoutput); |
1221 | 736 | bfd_set_section_flags (text_section, |
1222 | 736 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
1223 | 736 | | SEC_CODE | SEC_READONLY)); |
1224 | 736 | bfd_set_section_flags (data_section, |
1225 | 736 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC |
1226 | 736 | | SEC_DATA)); |
1227 | 736 | bfd_set_section_flags (bss_section, applicable & SEC_ALLOC); |
1228 | 736 | seg_info (bss_section)->bss = 1; |
1229 | 736 | #endif |
1230 | 736 | subseg_new (BFD_ABS_SECTION_NAME, 0); |
1231 | 736 | subseg_new (BFD_UND_SECTION_NAME, 0); |
1232 | 736 | reg_section = subseg_new ("*GAS `reg' section*", 0); |
1233 | 736 | expr_section = subseg_new ("*GAS `expr' section*", 0); |
1234 | | |
1235 | 736 | #ifndef OBJ_MACH_O |
1236 | 736 | subseg_set (text_section, 0); |
1237 | 736 | #endif |
1238 | | |
1239 | | /* This may add symbol table entries, which requires having an open BFD, |
1240 | | and sections already created. */ |
1241 | 736 | md_begin (); |
1242 | | |
1243 | | #ifdef USING_CGEN |
1244 | | gas_cgen_begin (); |
1245 | | #endif |
1246 | 736 | #ifdef obj_begin |
1247 | 736 | obj_begin (); |
1248 | 736 | #endif |
1249 | | |
1250 | | /* Skip argv[0]. */ |
1251 | 736 | argv++; |
1252 | 736 | argc--; |
1253 | | |
1254 | 1.47k | while (argc--) |
1255 | 736 | { |
1256 | 736 | if (*argv) |
1257 | 736 | { /* Is it a file-name argument? */ |
1258 | 736 | saw_a_file++; |
1259 | | /* argv->"" if stdin desired, else->filename. */ |
1260 | 736 | read_a_source_file (*argv); |
1261 | 736 | } |
1262 | 736 | argv++; /* Completed that argv. */ |
1263 | 736 | } |
1264 | 736 | if (!saw_a_file) |
1265 | 0 | read_a_source_file (""); |
1266 | 736 | } |
1267 | | |
1268 | | static void |
1269 | | free_notes (void) |
1270 | 736 | { |
1271 | 736 | _obstack_free (¬es, NULL); |
1272 | 736 | } |
1273 | | |
1274 | | /* Early initialisation, before gas prints messages. */ |
1275 | | |
1276 | | static void |
1277 | | gas_early_init (int *argcp, char ***argvp) |
1278 | 736 | { |
1279 | 736 | start_time = get_run_time (); |
1280 | 736 | signal_init (); |
1281 | | |
1282 | 736 | #ifdef HAVE_LC_MESSAGES |
1283 | 736 | setlocale (LC_MESSAGES, ""); |
1284 | 736 | #endif |
1285 | 736 | setlocale (LC_CTYPE, ""); |
1286 | 736 | bindtextdomain (PACKAGE, LOCALEDIR); |
1287 | 736 | textdomain (PACKAGE); |
1288 | | |
1289 | 736 | if (debug_memory) |
1290 | 0 | chunksize = 64; |
1291 | | |
1292 | 736 | #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME |
1293 | 736 | #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out" |
1294 | 736 | #endif |
1295 | | |
1296 | 736 | out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; |
1297 | | |
1298 | 736 | hex_init (); |
1299 | 736 | if (bfd_init () != BFD_INIT_MAGIC) |
1300 | 0 | as_fatal (_("libbfd ABI mismatch")); |
1301 | | |
1302 | 736 | obstack_begin (¬es, chunksize); |
1303 | 736 | xatexit (free_notes); |
1304 | | |
1305 | 736 | myname = **argvp; |
1306 | 736 | xmalloc_set_program_name (myname); |
1307 | 736 | bfd_set_error_program_name (myname); |
1308 | | |
1309 | 736 | expandargv (argcp, argvp); |
1310 | | |
1311 | 736 | init_include_dir (); |
1312 | | |
1313 | | #ifdef HOST_SPECIAL_INIT |
1314 | | HOST_SPECIAL_INIT (*argcp, *argvp); |
1315 | | #endif |
1316 | | |
1317 | | #ifdef USE_EMULATIONS |
1318 | | select_emulation_mode (*argcp, *argvp); |
1319 | | #endif |
1320 | 736 | } |
1321 | | |
1322 | | /* The bulk of gas initialisation. This is after args are parsed. */ |
1323 | | |
1324 | | static void |
1325 | | gas_init (void) |
1326 | 736 | { |
1327 | 736 | symbol_begin (); |
1328 | 736 | frag_init (); |
1329 | 736 | subsegs_begin (); |
1330 | 736 | read_begin (); |
1331 | 736 | input_scrub_begin (); |
1332 | 736 | expr_begin (); |
1333 | 736 | eh_begin (); |
1334 | | |
1335 | 736 | macro_init (); |
1336 | | |
1337 | 736 | dwarf2_init (); |
1338 | | |
1339 | 736 | local_symbol_make (".gasversion.", absolute_section, |
1340 | 736 | &predefined_address_frag, BFD_VERSION / 10000UL); |
1341 | | |
1342 | | /* Note: Put new initialisation calls that don't depend on stdoutput |
1343 | | being open above this point. stdoutput must be open for anything |
1344 | | that might use stdoutput objalloc memory, eg. calling bfd_alloc |
1345 | | or creating global symbols (via bfd_make_empty_symbol). */ |
1346 | 736 | xatexit (output_file_close); |
1347 | 736 | output_file_create (out_file_name); |
1348 | 736 | gas_assert (stdoutput != 0); |
1349 | | |
1350 | | /* Must be called before output_file_close. xexit calls the xatexit |
1351 | | list in reverse order. */ |
1352 | 736 | if (flag_print_statistics) |
1353 | 0 | xatexit (dump_statistics); |
1354 | | |
1355 | 736 | dot_symbol_init (); |
1356 | | |
1357 | | #ifdef tc_init_after_args |
1358 | | tc_init_after_args (); |
1359 | | #endif |
1360 | | |
1361 | 736 | itbl_init (); |
1362 | | |
1363 | | /* Now that we have fully initialized, and have created the output |
1364 | | file, define any symbols requested by --defsym command line |
1365 | | arguments. */ |
1366 | 736 | while (defsyms != NULL) |
1367 | 0 | { |
1368 | 0 | symbolS *sym; |
1369 | 0 | struct defsym_list *next; |
1370 | |
|
1371 | 0 | sym = symbol_new (defsyms->name, absolute_section, |
1372 | 0 | &zero_address_frag, defsyms->value); |
1373 | | /* Make symbols defined on the command line volatile, so that they |
1374 | | can be redefined inside a source file. This makes this assembler's |
1375 | | behaviour compatible with earlier versions, but it may not be |
1376 | | completely intuitive. */ |
1377 | 0 | S_SET_VOLATILE (sym); |
1378 | 0 | symbol_table_insert (sym); |
1379 | 0 | next = defsyms->next; |
1380 | 0 | free (defsyms); |
1381 | 0 | defsyms = next; |
1382 | 0 | } |
1383 | 736 | } |
1384 | | |
1385 | | int |
1386 | | old_main32 (int argc, char **argv); |
1387 | | int old_main32 (int argc, char ** argv) |
1388 | 0 | { |
1389 | 0 | char ** argv_orig = argv; |
1390 | 0 | struct stat sob; |
1391 | |
|
1392 | 0 | gas_early_init (&argc, &argv); |
1393 | | |
1394 | | /* Call parse_args before gas_init so that switches like |
1395 | | --hash-size can be honored. */ |
1396 | 0 | parse_args (&argc, &argv); |
1397 | |
|
1398 | 0 | if (argc > 1 && stat (out_file_name, &sob) == 0) |
1399 | 0 | { |
1400 | 0 | int i; |
1401 | |
|
1402 | 0 | for (i = 1; i < argc; ++i) |
1403 | 0 | { |
1404 | 0 | struct stat sib; |
1405 | | |
1406 | | /* Check that the input file and output file are different. */ |
1407 | 0 | if (stat (argv[i], &sib) == 0 |
1408 | 0 | && sib.st_ino == sob.st_ino |
1409 | | /* POSIX emulating systems may support stat() but if the |
1410 | | underlying file system does not support a file serial number |
1411 | | of some kind then they will return 0 for the inode. So |
1412 | | two files with an inode of 0 may not actually be the same. |
1413 | | On real POSIX systems no ordinary file will ever have an |
1414 | | inode of 0. */ |
1415 | 0 | && sib.st_ino != 0 |
1416 | | /* Different files may have the same inode number if they |
1417 | | reside on different devices, so check the st_dev field as |
1418 | | well. */ |
1419 | 0 | && sib.st_dev == sob.st_dev |
1420 | | /* PR 25572: Only check regular files. Devices, sockets and so |
1421 | | on might actually work as both input and output. Plus there |
1422 | | is a use case for using /dev/null as both input and output |
1423 | | when checking for command line option support in a script: |
1424 | | as --foo /dev/null -o /dev/null; if $? then ... */ |
1425 | 0 | && S_ISREG (sib.st_mode)) |
1426 | 0 | { |
1427 | 0 | const char *saved_out_file_name = out_file_name; |
1428 | | |
1429 | | /* Don't let as_fatal remove the output file! */ |
1430 | 0 | out_file_name = NULL; |
1431 | 0 | as_fatal (_("The input '%s' and output '%s' files are the same"), |
1432 | 0 | argv[i], saved_out_file_name); |
1433 | 0 | } |
1434 | 0 | } |
1435 | 0 | } |
1436 | | |
1437 | 0 | gas_init (); |
1438 | | |
1439 | | /* Assemble it. */ |
1440 | 0 | perform_an_assembly_pass (argc, argv); |
1441 | |
|
1442 | 0 | cond_finish_check (-1); |
1443 | |
|
1444 | | #ifdef md_finish |
1445 | | md_finish (); |
1446 | | #endif |
1447 | |
|
1448 | 0 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
1449 | 0 | if ((flag_execstack || flag_noexecstack) |
1450 | 0 | && OUTPUT_FLAVOR == bfd_target_elf_flavour) |
1451 | 0 | { |
1452 | 0 | segT gnustack; |
1453 | |
|
1454 | 0 | gnustack = subseg_new (".note.GNU-stack", 0); |
1455 | 0 | bfd_set_section_flags (gnustack, |
1456 | 0 | SEC_READONLY | (flag_execstack ? SEC_CODE : 0)); |
1457 | |
|
1458 | 0 | } |
1459 | 0 | #endif |
1460 | |
|
1461 | 0 | codeview_finish (); |
1462 | | |
1463 | | /* If we've been collecting dwarf2 .debug_line info, either for |
1464 | | assembly debugging or on behalf of the compiler, emit it now. */ |
1465 | 0 | dwarf2_finish (); |
1466 | | |
1467 | | /* If we constructed dwarf2 .eh_frame info, either via .cfi |
1468 | | directives from the user or by the backend, emit it now. */ |
1469 | 0 | cfi_finish (); |
1470 | |
|
1471 | 0 | keep_it = 0; |
1472 | 0 | if (seen_at_least_1_file ()) |
1473 | 0 | { |
1474 | 0 | int n_warns, n_errs; |
1475 | 0 | char warn_msg[50]; |
1476 | 0 | char err_msg[50]; |
1477 | |
|
1478 | 0 | write_object_file (); |
1479 | |
|
1480 | 0 | n_warns = had_warnings (); |
1481 | 0 | n_errs = had_errors (); |
1482 | |
|
1483 | 0 | sprintf (warn_msg, |
1484 | 0 | ngettext ("%d warning", "%d warnings", n_warns), n_warns); |
1485 | 0 | sprintf (err_msg, |
1486 | 0 | ngettext ("%d error", "%d errors", n_errs), n_errs); |
1487 | 0 | if (flag_fatal_warnings && n_warns != 0) |
1488 | 0 | { |
1489 | 0 | if (n_errs == 0) |
1490 | 0 | as_bad (_("%s, treating warnings as errors"), warn_msg); |
1491 | 0 | n_errs += n_warns; |
1492 | 0 | } |
1493 | |
|
1494 | 0 | if (n_errs == 0) |
1495 | 0 | keep_it = 1; |
1496 | 0 | else if (flag_always_generate_output) |
1497 | 0 | { |
1498 | | /* The -Z flag indicates that an object file should be generated, |
1499 | | regardless of warnings and errors. */ |
1500 | 0 | keep_it = 1; |
1501 | 0 | fprintf (stderr, _("%s, %s, generating bad object file\n"), |
1502 | 0 | err_msg, warn_msg); |
1503 | 0 | } |
1504 | 0 | } |
1505 | |
|
1506 | 0 | fflush (stderr); |
1507 | |
|
1508 | 0 | #ifndef NO_LISTING |
1509 | 0 | listing_print (listing_filename, argv_orig); |
1510 | 0 | #endif |
1511 | |
|
1512 | 0 | input_scrub_end (); |
1513 | | |
1514 | | /* Use xexit instead of return, because under VMS environments they |
1515 | | may not place the same interpretation on the value given. */ |
1516 | 0 | if (had_errors () != 0) |
1517 | 0 | xexit (EXIT_FAILURE); |
1518 | | |
1519 | | /* Only generate dependency file if assembler was successful. */ |
1520 | 0 | print_dependencies (); |
1521 | |
|
1522 | 0 | xexit (EXIT_SUCCESS); |
1523 | 0 | } |