Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* as.c - GAS main program. |
f7e42eb4 | 2 | Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
bf083c64 | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
11 | any later version. |
12 | ||
ec2655a6 NC |
13 | GAS is distributed in the hope that it will be useful, but WITHOUT |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
16 | License for more details. | |
252b5132 RH |
17 | |
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 | 22 | |
76b0a8c0 | 23 | /* Main program for AS; a 32-bit assembler of GNU. |
33948635 NC |
24 | Understands command arguments. |
25 | Has a few routines that don't fit in other modules because they | |
26 | are shared. | |
27 | ||
28 | bugs | |
29 | ||
30 | : initialisers | |
31 | Since no-one else says they will support them in future: I | |
32 | don't support them now. */ | |
252b5132 | 33 | |
252b5132 RH |
34 | #define COMMON |
35 | ||
36 | #include "as.h" | |
37 | #include "subsegs.h" | |
38 | #include "output-file.h" | |
39 | #include "sb.h" | |
40 | #include "macro.h" | |
bccba5f0 | 41 | #include "dwarf2dbg.h" |
54cfded0 | 42 | #include "dw2gencfi.h" |
b95d15c6 | 43 | #include "bfdver.h" |
b95d15c6 | 44 | |
84be4d71 ILT |
45 | #ifdef HAVE_ITBL_CPU |
46 | #include "itbl-ops.h" | |
47 | #else | |
252b5132 RH |
48 | #define itbl_init() |
49 | #endif | |
50 | ||
51 | #ifdef HAVE_SBRK | |
52 | #ifdef NEED_DECLARATION_SBRK | |
53 | extern PTR sbrk (); | |
54 | #endif | |
55 | #endif | |
56 | ||
9cc92a36 NC |
57 | #ifdef USING_CGEN |
58 | /* Perform any cgen specific initialisation for gas. */ | |
33948635 | 59 | extern void gas_cgen_begin (void); |
9cc92a36 | 60 | #endif |
252b5132 | 61 | |
33948635 NC |
62 | /* We build a list of defsyms as we read the options, and then define |
63 | them after we have initialized everything. */ | |
64 | struct defsym_list | |
65 | { | |
66 | struct defsym_list *next; | |
67 | char *name; | |
68 | valueT value; | |
69 | }; | |
70 | ||
71 | ||
76b0a8c0 KH |
72 | /* True if a listing is wanted. */ |
73 | int listing; | |
252b5132 | 74 | |
252b5132 | 75 | /* Type of debugging to generate. */ |
4dc7ead9 | 76 | enum debug_info_type debug_type = DEBUG_UNSPECIFIED; |
05da4302 | 77 | int use_gnu_debug_info_extensions = 0; |
252b5132 | 78 | |
329e276d NC |
79 | #ifndef MD_DEBUG_FORMAT_SELECTOR |
80 | #define MD_DEBUG_FORMAT_SELECTOR NULL | |
81 | #endif | |
82 | static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR; | |
83 | ||
252b5132 | 84 | /* Maximum level of macro nesting. */ |
252b5132 RH |
85 | int max_macro_nest = 100; |
86 | ||
76b0a8c0 | 87 | /* argv[0] */ |
87c245cc | 88 | static char * myname; |
252b5132 RH |
89 | |
90 | /* The default obstack chunk size. If we set this to zero, the | |
91 | obstack code will use whatever will fit in a 4096 byte block. */ | |
92 | int chunksize = 0; | |
93 | ||
94 | /* To monitor memory allocation more effectively, make this non-zero. | |
95 | Then the chunk sizes for gas and bfd will be reduced. */ | |
96 | int debug_memory = 0; | |
97 | ||
54cfded0 AM |
98 | /* Enable verbose mode. */ |
99 | int verbose = 0; | |
100 | ||
33948635 NC |
101 | segT reg_section; |
102 | segT expr_section; | |
103 | segT text_section; | |
104 | segT data_section; | |
105 | segT bss_section; | |
252b5132 | 106 | |
33948635 NC |
107 | /* Name of listing file. */ |
108 | static char *listing_filename = NULL; | |
252b5132 RH |
109 | |
110 | static struct defsym_list *defsyms; | |
111 | ||
732f54cd JB |
112 | #ifdef HAVE_ITBL_CPU |
113 | /* Keep a record of the itbl files we read in. */ | |
114 | struct itbl_file_list | |
115 | { | |
116 | struct itbl_file_list *next; | |
117 | char *name; | |
118 | }; | |
33948635 | 119 | static struct itbl_file_list *itbl_files; |
732f54cd | 120 | #endif |
252b5132 | 121 | |
33948635 | 122 | static long start_time; |
252b5132 | 123 | |
caa32fe5 NC |
124 | static int flag_macro_alternate; |
125 | ||
252b5132 | 126 | \f |
252b5132 RH |
127 | #ifdef USE_EMULATIONS |
128 | #define EMULATION_ENVIRON "AS_EMULATION" | |
129 | ||
130 | extern struct emulation mipsbelf, mipslelf, mipself; | |
131 | extern struct emulation mipsbecoff, mipslecoff, mipsecoff; | |
4c63da97 | 132 | extern struct emulation i386coff, i386elf, i386aout; |
3bcbcc3d | 133 | extern struct emulation crisaout, criself; |
252b5132 RH |
134 | |
135 | static struct emulation *const emulations[] = { EMULATIONS }; | |
136 | static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]); | |
137 | ||
252b5132 | 138 | static void |
33948635 | 139 | select_emulation_mode (int argc, char **argv) |
252b5132 RH |
140 | { |
141 | int i; | |
142 | char *p, *em = 0; | |
143 | ||
144 | for (i = 1; i < argc; i++) | |
145 | if (!strncmp ("--em", argv[i], 4)) | |
146 | break; | |
147 | ||
148 | if (i == argc) | |
149 | goto do_default; | |
150 | ||
151 | p = strchr (argv[i], '='); | |
152 | if (p) | |
153 | p++; | |
154 | else | |
76b0a8c0 | 155 | p = argv[i + 1]; |
252b5132 RH |
156 | |
157 | if (!p || !*p) | |
158 | as_fatal (_("missing emulation mode name")); | |
159 | em = p; | |
160 | ||
161 | do_default: | |
162 | if (em == 0) | |
163 | em = getenv (EMULATION_ENVIRON); | |
164 | if (em == 0) | |
165 | em = DEFAULT_EMULATION; | |
166 | ||
167 | if (em) | |
168 | { | |
169 | for (i = 0; i < n_emulations; i++) | |
170 | if (!strcmp (emulations[i]->name, em)) | |
171 | break; | |
172 | if (i == n_emulations) | |
173 | as_fatal (_("unrecognized emulation name `%s'"), em); | |
174 | this_emulation = emulations[i]; | |
175 | } | |
176 | else | |
177 | this_emulation = emulations[0]; | |
178 | ||
179 | this_emulation->init (); | |
180 | } | |
181 | ||
182 | const char * | |
33948635 | 183 | default_emul_bfd_name (void) |
252b5132 RH |
184 | { |
185 | abort (); | |
186 | return NULL; | |
187 | } | |
188 | ||
189 | void | |
33948635 | 190 | common_emul_init (void) |
252b5132 RH |
191 | { |
192 | this_format = this_emulation->format; | |
193 | ||
194 | if (this_emulation->leading_underscore == 2) | |
195 | this_emulation->leading_underscore = this_format->dfl_leading_underscore; | |
196 | ||
197 | if (this_emulation->default_endian != 2) | |
198 | target_big_endian = this_emulation->default_endian; | |
199 | ||
200 | if (this_emulation->fake_label_name == 0) | |
201 | { | |
202 | if (this_emulation->leading_underscore) | |
203 | this_emulation->fake_label_name = "L0\001"; | |
204 | else | |
205 | /* What other parameters should we test? */ | |
206 | this_emulation->fake_label_name = ".L0\001"; | |
207 | } | |
208 | } | |
209 | #endif | |
210 | ||
4c63da97 | 211 | void |
33948635 | 212 | print_version_id (void) |
4c63da97 AM |
213 | { |
214 | static int printed; | |
33948635 | 215 | |
4c63da97 AM |
216 | if (printed) |
217 | return; | |
218 | printed = 1; | |
219 | ||
7be1c489 | 220 | fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"), |
403487ec | 221 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
4c63da97 AM |
222 | } |
223 | ||
224 | static void | |
33948635 | 225 | show_usage (FILE * stream) |
4c63da97 AM |
226 | { |
227 | fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname); | |
228 | ||
229 | fprintf (stream, _("\ | |
230 | Options:\n\ | |
231 | -a[sub-option...] turn on listings\n\ | |
232 | Sub-options [default hls]:\n\ | |
233 | c omit false conditionals\n\ | |
234 | d omit debugging directives\n\ | |
235 | h include high-level source\n\ | |
236 | l include assembly\n\ | |
237 | m include macro expansions\n\ | |
238 | n omit forms processing\n\ | |
239 | s include symbols\n\ | |
4c63da97 AM |
240 | =FILE list to FILE (must be last sub-option)\n")); |
241 | ||
caa32fe5 NC |
242 | fprintf (stream, _("\ |
243 | --alternate initially turn on alternate macro syntax\n")); | |
4c63da97 AM |
244 | fprintf (stream, _("\ |
245 | -D produce assembler debugging messages\n")); | |
246 | fprintf (stream, _("\ | |
3d6b762c JM |
247 | --debug-prefix-map OLD=NEW Map OLD to NEW in debug information\n")); |
248 | fprintf (stream, _("\ | |
4c63da97 AM |
249 | --defsym SYM=VAL define symbol SYM to given value\n")); |
250 | #ifdef USE_EMULATIONS | |
251 | { | |
252 | int i; | |
253 | char *def_em; | |
254 | ||
255 | fprintf (stream, "\ | |
256 | --em=["); | |
76b0a8c0 | 257 | for (i = 0; i < n_emulations - 1; i++) |
4c63da97 AM |
258 | fprintf (stream, "%s | ", emulations[i]->name); |
259 | fprintf (stream, "%s]\n", emulations[i]->name); | |
260 | ||
261 | def_em = getenv (EMULATION_ENVIRON); | |
76b0a8c0 | 262 | if (!def_em) |
4c63da97 AM |
263 | def_em = DEFAULT_EMULATION; |
264 | fprintf (stream, _("\ | |
265 | emulate output (default %s)\n"), def_em); | |
266 | } | |
68d55fe3 | 267 | #endif |
7be1c489 | 268 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
269 | fprintf (stream, _("\ |
270 | --execstack require executable stack for this object\n")); | |
271 | fprintf (stream, _("\ | |
272 | --noexecstack don't require executable stack for this object\n")); | |
4c63da97 AM |
273 | #endif |
274 | fprintf (stream, _("\ | |
275 | -f skip whitespace and comment preprocessing\n")); | |
276 | fprintf (stream, _("\ | |
329e276d NC |
277 | -g --gen-debug generate debugging information\n")); |
278 | fprintf (stream, _("\ | |
279 | --gstabs generate STABS debugging information\n")); | |
4c63da97 | 280 | fprintf (stream, _("\ |
329e276d | 281 | --gstabs+ generate STABS debug info with GNU extensions\n")); |
05da4302 | 282 | fprintf (stream, _("\ |
329e276d | 283 | --gdwarf-2 generate DWARF2 debugging information\n")); |
4c63da97 | 284 | fprintf (stream, _("\ |
4bdd3565 NC |
285 | --hash-size=<value> set the hash table size close to <value>\n")); |
286 | fprintf (stream, _("\ | |
4c63da97 AM |
287 | --help show this message and exit\n")); |
288 | fprintf (stream, _("\ | |
ea20a7da CC |
289 | --target-help show target specific options\n")); |
290 | fprintf (stream, _("\ | |
4c63da97 AM |
291 | -I DIR add DIR to search list for .include directives\n")); |
292 | fprintf (stream, _("\ | |
293 | -J don't warn about signed overflow\n")); | |
294 | fprintf (stream, _("\ | |
295 | -K warn when differences altered for long displacements\n")); | |
296 | fprintf (stream, _("\ | |
297 | -L,--keep-locals keep local symbols (e.g. starting with `L')\n")); | |
298 | fprintf (stream, _("\ | |
299 | -M,--mri assemble in MRI compatibility mode\n")); | |
300 | fprintf (stream, _("\ | |
301 | --MD FILE write dependency information in FILE (default none)\n")); | |
302 | fprintf (stream, _("\ | |
303 | -nocpp ignored\n")); | |
304 | fprintf (stream, _("\ | |
305 | -o OBJFILE name the object-file output OBJFILE (default a.out)\n")); | |
306 | fprintf (stream, _("\ | |
307 | -R fold data section into text section\n")); | |
308 | fprintf (stream, _("\ | |
4bdd3565 NC |
309 | --reduce-memory-overheads \n\ |
310 | prefer smaller memory use at the cost of longer\n\ | |
311 | assembly times\n")); | |
312 | fprintf (stream, _("\ | |
4c63da97 AM |
313 | --statistics print various measured statistics from execution\n")); |
314 | fprintf (stream, _("\ | |
315 | --strip-local-absolute strip local absolute symbols\n")); | |
316 | fprintf (stream, _("\ | |
317 | --traditional-format Use same format as native assembler when possible\n")); | |
318 | fprintf (stream, _("\ | |
319 | --version print assembler version number and exit\n")); | |
320 | fprintf (stream, _("\ | |
321 | -W --no-warn suppress warnings\n")); | |
322 | fprintf (stream, _("\ | |
323 | --warn don't suppress warnings\n")); | |
324 | fprintf (stream, _("\ | |
325 | --fatal-warnings treat warnings as errors\n")); | |
732f54cd | 326 | #ifdef HAVE_ITBL_CPU |
4c63da97 AM |
327 | fprintf (stream, _("\ |
328 | --itbl INSTTBL extend instruction set to include instructions\n\ | |
329 | matching the specifications defined in file INSTTBL\n")); | |
732f54cd | 330 | #endif |
4c63da97 AM |
331 | fprintf (stream, _("\ |
332 | -w ignored\n")); | |
333 | fprintf (stream, _("\ | |
334 | -X ignored\n")); | |
335 | fprintf (stream, _("\ | |
336 | -Z generate object file even after errors\n")); | |
337 | fprintf (stream, _("\ | |
338 | --listing-lhs-width set the width in words of the output data column of\n\ | |
339 | the listing\n")); | |
340 | fprintf (stream, _("\ | |
341 | --listing-lhs-width2 set the width in words of the continuation lines\n\ | |
342 | of the output data column; ignored if smaller than\n\ | |
343 | the width of the first line\n")); | |
344 | fprintf (stream, _("\ | |
345 | --listing-rhs-width set the max width in characters of the lines from\n\ | |
346 | the source file\n")); | |
347 | fprintf (stream, _("\ | |
348 | --listing-cont-lines set the maximum number of continuation lines used\n\ | |
349 | for the output data column of the listing\n")); | |
a55ff675 MM |
350 | fprintf (stream, _("\ |
351 | @FILE read options from FILE\n")); | |
4c63da97 AM |
352 | |
353 | md_show_usage (stream); | |
354 | ||
c20f4f8c | 355 | fputc ('\n', stream); |
92f01d61 JM |
356 | |
357 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
358 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); | |
4c63da97 AM |
359 | } |
360 | ||
76b0a8c0 KH |
361 | /* Since it is easy to do here we interpret the special arg "-" |
362 | to mean "use stdin" and we set that argv[] pointing to "". | |
363 | After we have munged argv[], the only things left are source file | |
364 | name(s) and ""(s) denoting stdin. These file names are used | |
365 | (perhaps more than once) later. | |
366 | ||
367 | check for new machine-dep cmdline options in | |
368 | md_parse_option definitions in config/tc-*.c. */ | |
252b5132 RH |
369 | |
370 | static void | |
33948635 | 371 | parse_args (int * pargc, char *** pargv) |
252b5132 | 372 | { |
33948635 NC |
373 | int old_argc; |
374 | int new_argc; | |
375 | char ** old_argv; | |
376 | char ** new_argv; | |
252b5132 RH |
377 | /* Starting the short option string with '-' is for programs that |
378 | expect options and other ARGV-elements in any order and that care about | |
379 | the ordering of the two. We describe each non-option ARGV-element | |
380 | as if it were the argument of an option with character code 1. */ | |
252b5132 | 381 | char *shortopts; |
5a38dc70 | 382 | extern const char *md_shortopts; |
33948635 NC |
383 | static const char std_shortopts[] = |
384 | { | |
30a2b4ef | 385 | '-', 'J', |
252b5132 | 386 | #ifndef WORKING_DOT_WORD |
30a2b4ef KH |
387 | /* -K is not meaningful if .word is not being hacked. */ |
388 | 'K', | |
252b5132 | 389 | #endif |
8f94ae4d | 390 | 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':', |
252b5132 | 391 | #ifndef VMS |
30a2b4ef KH |
392 | /* -v takes an argument on VMS, so we don't make it a generic |
393 | option. */ | |
394 | 'v', | |
252b5132 | 395 | #endif |
30a2b4ef | 396 | 'w', 'X', |
732f54cd | 397 | #ifdef HAVE_ITBL_CPU |
33948635 | 398 | /* New option for extending instruction set (see also --itbl below). */ |
30a2b4ef | 399 | 't', ':', |
732f54cd | 400 | #endif |
30a2b4ef KH |
401 | '\0' |
402 | }; | |
252b5132 RH |
403 | struct option *longopts; |
404 | extern struct option md_longopts[]; | |
405 | extern size_t md_longopts_size; | |
33948635 NC |
406 | /* Codes used for the long options with no short synonyms. */ |
407 | enum option_values | |
408 | { | |
409 | OPTION_HELP = OPTION_STD_BASE, | |
410 | OPTION_NOCPP, | |
411 | OPTION_STATISTICS, | |
412 | OPTION_VERSION, | |
413 | OPTION_DUMPCONFIG, | |
414 | OPTION_VERBOSE, | |
415 | OPTION_EMULATION, | |
3d6b762c | 416 | OPTION_DEBUG_PREFIX_MAP, |
33948635 | 417 | OPTION_DEFSYM, |
33948635 NC |
418 | OPTION_LISTING_LHS_WIDTH, |
419 | OPTION_LISTING_LHS_WIDTH2, | |
420 | OPTION_LISTING_RHS_WIDTH, | |
421 | OPTION_LISTING_CONT_LINES, | |
422 | OPTION_DEPFILE, | |
423 | OPTION_GSTABS, | |
05da4302 | 424 | OPTION_GSTABS_PLUS, |
329e276d | 425 | OPTION_GDWARF2, |
33948635 NC |
426 | OPTION_STRIP_LOCAL_ABSOLUTE, |
427 | OPTION_TRADITIONAL_FORMAT, | |
33948635 NC |
428 | OPTION_WARN, |
429 | OPTION_TARGET_HELP, | |
430 | OPTION_EXECSTACK, | |
431 | OPTION_NOEXECSTACK, | |
caa32fe5 | 432 | OPTION_ALTERNATE, |
5a14ab23 | 433 | OPTION_AL, |
4bdd3565 NC |
434 | OPTION_HASH_TABLE_SIZE, |
435 | OPTION_REDUCE_MEMORY_OVERHEADS, | |
33948635 | 436 | OPTION_WARN_FATAL |
329e276d NC |
437 | /* When you add options here, check that they do |
438 | not collide with OPTION_MD_BASE. See as.h. */ | |
33948635 NC |
439 | }; |
440 | ||
441 | static const struct option std_longopts[] = | |
442 | { | |
329e276d NC |
443 | /* Note: commas are placed at the start of the line rather than |
444 | the end of the preceeding line so that it is simpler to | |
445 | selectively add and remove lines from this list. */ | |
446 | {"alternate", no_argument, NULL, OPTION_ALTERNATE} | |
fb767913 NC |
447 | /* The entry for "a" is here to prevent getopt_long_only() from |
448 | considering that -a is an abbreviation for --alternate. This is | |
449 | necessary because -a=<FILE> is a valid switch but getopt would | |
450 | normally reject it since --alternate does not take an argument. */ | |
451 | ,{"a", optional_argument, NULL, 'a'} | |
5a14ab23 L |
452 | /* Handle -al=<FILE>. */ |
453 | ,{"al", optional_argument, NULL, OPTION_AL} | |
3d6b762c | 454 | ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP} |
329e276d NC |
455 | ,{"defsym", required_argument, NULL, OPTION_DEFSYM} |
456 | ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG} | |
457 | ,{"emulation", required_argument, NULL, OPTION_EMULATION} | |
7be1c489 | 458 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
329e276d NC |
459 | ,{"execstack", no_argument, NULL, OPTION_EXECSTACK} |
460 | ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK} | |
461 | #endif | |
462 | ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL} | |
463 | ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2} | |
464 | /* GCC uses --gdwarf-2 but GAS uses to use --gdwarf2, | |
465 | so we keep it here for backwards compatibility. */ | |
466 | ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2} | |
467 | ,{"gen-debug", no_argument, NULL, 'g'} | |
468 | ,{"gstabs", no_argument, NULL, OPTION_GSTABS} | |
469 | ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS} | |
4bdd3565 | 470 | ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE} |
329e276d | 471 | ,{"help", no_argument, NULL, OPTION_HELP} |
732f54cd | 472 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
473 | /* New option for extending instruction set (see also -t above). |
474 | The "-t file" or "--itbl file" option extends the basic set of | |
475 | valid instructions by reading "file", a text file containing a | |
476 | list of instruction formats. The additional opcodes and their | |
477 | formats are added to the built-in set of instructions, and | |
478 | mnemonics for new registers may also be defined. */ | |
732f54cd JB |
479 | ,{"itbl", required_argument, NULL, 't'} |
480 | #endif | |
329e276d NC |
481 | /* getopt allows abbreviations, so we do this to stop it from |
482 | treating -k as an abbreviation for --keep-locals. Some | |
483 | ports use -k to enable PIC assembly. */ | |
484 | ,{"keep-locals", no_argument, NULL, 'L'} | |
485 | ,{"keep-locals", no_argument, NULL, 'L'} | |
486 | ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH} | |
487 | ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2} | |
488 | ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH} | |
489 | ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES} | |
490 | ,{"MD", required_argument, NULL, OPTION_DEPFILE} | |
491 | ,{"mri", no_argument, NULL, 'M'} | |
492 | ,{"nocpp", no_argument, NULL, OPTION_NOCPP} | |
493 | ,{"no-warn", no_argument, NULL, 'W'} | |
4bdd3565 | 494 | ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS} |
329e276d NC |
495 | ,{"statistics", no_argument, NULL, OPTION_STATISTICS} |
496 | ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE} | |
497 | ,{"version", no_argument, NULL, OPTION_VERSION} | |
498 | ,{"verbose", no_argument, NULL, OPTION_VERBOSE} | |
499 | ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP} | |
500 | ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT} | |
501 | ,{"warn", no_argument, NULL, OPTION_WARN} | |
252b5132 RH |
502 | }; |
503 | ||
beb2de9b AC |
504 | /* Construct the option lists from the standard list and the target |
505 | dependent list. Include space for an extra NULL option and | |
76b0a8c0 | 506 | always NULL terminate. */ |
252b5132 | 507 | shortopts = concat (std_shortopts, md_shortopts, (char *) NULL); |
33948635 | 508 | longopts = xmalloc (sizeof (std_longopts) + md_longopts_size + sizeof (struct option)); |
252b5132 | 509 | memcpy (longopts, std_longopts, sizeof (std_longopts)); |
33948635 NC |
510 | memcpy (((char *) longopts) + sizeof (std_longopts), md_longopts, md_longopts_size); |
511 | memset (((char *) longopts) + sizeof (std_longopts) + md_longopts_size, | |
beb2de9b | 512 | 0, sizeof (struct option)); |
252b5132 RH |
513 | |
514 | /* Make a local copy of the old argv. */ | |
515 | old_argc = *pargc; | |
516 | old_argv = *pargv; | |
517 | ||
518 | /* Initialize a new argv that contains no options. */ | |
33948635 | 519 | new_argv = xmalloc (sizeof (char *) * (old_argc + 1)); |
252b5132 RH |
520 | new_argv[0] = old_argv[0]; |
521 | new_argc = 1; | |
522 | new_argv[new_argc] = NULL; | |
523 | ||
524 | while (1) | |
525 | { | |
526 | /* getopt_long_only is like getopt_long, but '-' as well as '--' can | |
527 | indicate a long option. */ | |
528 | int longind; | |
529 | int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts, | |
530 | &longind); | |
531 | ||
532 | if (optc == -1) | |
533 | break; | |
534 | ||
535 | switch (optc) | |
536 | { | |
537 | default: | |
538 | /* md_parse_option should return 1 if it recognizes optc, | |
539 | 0 if not. */ | |
540 | if (md_parse_option (optc, optarg) != 0) | |
541 | break; | |
542 | /* `-v' isn't included in the general short_opts list, so check for | |
47eebc20 | 543 | it explicitly here before deciding we've gotten a bad argument. */ |
252b5132 RH |
544 | if (optc == 'v') |
545 | { | |
546 | #ifdef VMS | |
547 | /* Telling getopt to treat -v's value as optional can result | |
548 | in it picking up a following filename argument here. The | |
549 | VMS code in md_parse_option can return 0 in that case, | |
550 | but it has no way of pushing the filename argument back. */ | |
551 | if (optarg && *optarg) | |
30a2b4ef | 552 | new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL; |
252b5132 RH |
553 | else |
554 | #else | |
555 | case 'v': | |
556 | #endif | |
557 | case OPTION_VERBOSE: | |
558 | print_version_id (); | |
54cfded0 | 559 | verbose = 1; |
252b5132 RH |
560 | break; |
561 | } | |
329e276d NC |
562 | else |
563 | as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : ""); | |
76b0a8c0 | 564 | /* Fall through. */ |
252b5132 RH |
565 | |
566 | case '?': | |
567 | exit (EXIT_FAILURE); | |
568 | ||
569 | case 1: /* File name. */ | |
570 | if (!strcmp (optarg, "-")) | |
571 | optarg = ""; | |
572 | new_argv[new_argc++] = optarg; | |
573 | new_argv[new_argc] = NULL; | |
574 | break; | |
ef99799a | 575 | |
ea20a7da | 576 | case OPTION_TARGET_HELP: |
411863a4 KH |
577 | md_show_usage (stdout); |
578 | exit (EXIT_SUCCESS); | |
252b5132 RH |
579 | |
580 | case OPTION_HELP: | |
581 | show_usage (stdout); | |
582 | exit (EXIT_SUCCESS); | |
583 | ||
584 | case OPTION_NOCPP: | |
585 | break; | |
586 | ||
587 | case OPTION_STATISTICS: | |
588 | flag_print_statistics = 1; | |
589 | break; | |
590 | ||
591 | case OPTION_STRIP_LOCAL_ABSOLUTE: | |
592 | flag_strip_local_absolute = 1; | |
593 | break; | |
594 | ||
595 | case OPTION_TRADITIONAL_FORMAT: | |
596 | flag_traditional_format = 1; | |
597 | break; | |
598 | ||
599 | case OPTION_VERSION: | |
600 | /* This output is intended to follow the GNU standards document. */ | |
6c19f338 | 601 | printf (_("GNU assembler %s\n"), BFD_VERSION_STRING); |
066c2a57 | 602 | printf (_("Copyright 2007 Free Software Foundation, Inc.\n")); |
252b5132 RH |
603 | printf (_("\ |
604 | This program is free software; you may redistribute it under the terms of\n\ | |
ec2655a6 NC |
605 | the GNU General Public License version 3 or later.\n\ |
606 | This program has absolutely no warranty.\n")); | |
252b5132 RH |
607 | printf (_("This assembler was configured for a target of `%s'.\n"), |
608 | TARGET_ALIAS); | |
609 | exit (EXIT_SUCCESS); | |
610 | ||
611 | case OPTION_EMULATION: | |
612 | #ifdef USE_EMULATIONS | |
613 | if (strcmp (optarg, this_emulation->name)) | |
614 | as_fatal (_("multiple emulation names specified")); | |
615 | #else | |
616 | as_fatal (_("emulations not handled in this configuration")); | |
617 | #endif | |
618 | break; | |
619 | ||
620 | case OPTION_DUMPCONFIG: | |
621 | fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS); | |
622 | fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL); | |
623 | fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU); | |
624 | #ifdef TARGET_OBJ_FORMAT | |
625 | fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT); | |
626 | #endif | |
627 | #ifdef TARGET_FORMAT | |
628 | fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT); | |
629 | #endif | |
630 | exit (EXIT_SUCCESS); | |
631 | ||
3d6b762c JM |
632 | case OPTION_DEBUG_PREFIX_MAP: |
633 | add_debug_prefix_map (optarg); | |
634 | break; | |
635 | ||
252b5132 RH |
636 | case OPTION_DEFSYM: |
637 | { | |
638 | char *s; | |
a38cf1db | 639 | valueT i; |
252b5132 RH |
640 | struct defsym_list *n; |
641 | ||
642 | for (s = optarg; *s != '\0' && *s != '='; s++) | |
643 | ; | |
644 | if (*s == '\0') | |
645 | as_fatal (_("bad defsym; format is --defsym name=value")); | |
646 | *s++ = '\0'; | |
a38cf1db | 647 | i = bfd_scan_vma (s, (const char **) NULL, 0); |
33948635 | 648 | n = xmalloc (sizeof *n); |
252b5132 RH |
649 | n->next = defsyms; |
650 | n->name = optarg; | |
651 | n->value = i; | |
652 | defsyms = n; | |
653 | } | |
654 | break; | |
655 | ||
732f54cd | 656 | #ifdef HAVE_ITBL_CPU |
252b5132 RH |
657 | case 't': |
658 | { | |
76b0a8c0 KH |
659 | /* optarg is the name of the file containing the instruction |
660 | formats, opcodes, register names, etc. */ | |
252b5132 RH |
661 | struct itbl_file_list *n; |
662 | ||
663 | if (optarg == NULL) | |
664 | { | |
0e389e77 | 665 | as_warn (_("no file name following -t option")); |
252b5132 RH |
666 | break; |
667 | } | |
76b0a8c0 | 668 | |
33948635 | 669 | n = xmalloc (sizeof * n); |
252b5132 RH |
670 | n->next = itbl_files; |
671 | n->name = optarg; | |
672 | itbl_files = n; | |
673 | ||
674 | /* Parse the file and add the new instructions to our internal | |
76b0a8c0 KH |
675 | table. If multiple instruction tables are specified, the |
676 | information from this table gets appended onto the existing | |
677 | internal table. */ | |
252b5132 RH |
678 | itbl_files->name = xstrdup (optarg); |
679 | if (itbl_parse (itbl_files->name) != 0) | |
0e389e77 AM |
680 | as_fatal (_("failed to read instruction table %s\n"), |
681 | itbl_files->name); | |
252b5132 RH |
682 | } |
683 | break; | |
732f54cd | 684 | #endif |
252b5132 RH |
685 | |
686 | case OPTION_DEPFILE: | |
687 | start_dependencies (optarg); | |
688 | break; | |
689 | ||
329e276d | 690 | case 'g': |
8f94ae4d NC |
691 | /* Some backends, eg Alpha and Mips, use the -g switch for their |
692 | own purposes. So we check here for an explicit -g and allow | |
329e276d NC |
693 | the backend to decide if it wants to process it. */ |
694 | if ( old_argv[optind - 1][1] == 'g' | |
329e276d NC |
695 | && md_parse_option (optc, optarg)) |
696 | continue; | |
697 | ||
698 | if (md_debug_format_selector) | |
699 | debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions); | |
700 | else if (IS_ELF) | |
701 | debug_type = DEBUG_DWARF2; | |
702 | else | |
703 | debug_type = DEBUG_STABS; | |
704 | break; | |
705 | ||
05da4302 NC |
706 | case OPTION_GSTABS_PLUS: |
707 | use_gnu_debug_info_extensions = 1; | |
708 | /* Fall through. */ | |
252b5132 RH |
709 | case OPTION_GSTABS: |
710 | debug_type = DEBUG_STABS; | |
711 | break; | |
76b0a8c0 | 712 | |
fac0d250 RH |
713 | case OPTION_GDWARF2: |
714 | debug_type = DEBUG_DWARF2; | |
715 | break; | |
716 | ||
252b5132 RH |
717 | case 'J': |
718 | flag_signed_overflow_ok = 1; | |
719 | break; | |
720 | ||
721 | #ifndef WORKING_DOT_WORD | |
722 | case 'K': | |
723 | flag_warn_displacement = 1; | |
724 | break; | |
725 | #endif | |
252b5132 RH |
726 | case 'L': |
727 | flag_keep_locals = 1; | |
728 | break; | |
729 | ||
730 | case OPTION_LISTING_LHS_WIDTH: | |
76b0a8c0 | 731 | listing_lhs_width = atoi (optarg); |
252b5132 RH |
732 | if (listing_lhs_width_second < listing_lhs_width) |
733 | listing_lhs_width_second = listing_lhs_width; | |
734 | break; | |
735 | case OPTION_LISTING_LHS_WIDTH2: | |
736 | { | |
76b0a8c0 | 737 | int tmp = atoi (optarg); |
329e276d | 738 | |
252b5132 RH |
739 | if (tmp > listing_lhs_width) |
740 | listing_lhs_width_second = tmp; | |
741 | } | |
742 | break; | |
743 | case OPTION_LISTING_RHS_WIDTH: | |
76b0a8c0 | 744 | listing_rhs_width = atoi (optarg); |
252b5132 RH |
745 | break; |
746 | case OPTION_LISTING_CONT_LINES: | |
76b0a8c0 | 747 | listing_lhs_cont_lines = atoi (optarg); |
252b5132 RH |
748 | break; |
749 | ||
750 | case 'M': | |
751 | flag_mri = 1; | |
752 | #ifdef TC_M68K | |
753 | flag_m68k_mri = 1; | |
754 | #endif | |
755 | break; | |
756 | ||
757 | case 'R': | |
758 | flag_readonly_data_in_text = 1; | |
759 | break; | |
760 | ||
761 | case 'W': | |
762 | flag_no_warnings = 1; | |
763 | break; | |
764 | ||
2bdd6cf5 GK |
765 | case OPTION_WARN: |
766 | flag_no_warnings = 0; | |
767 | flag_fatal_warnings = 0; | |
768 | break; | |
769 | ||
770 | case OPTION_WARN_FATAL: | |
771 | flag_no_warnings = 0; | |
772 | flag_fatal_warnings = 1; | |
773 | break; | |
774 | ||
7be1c489 | 775 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
776 | case OPTION_EXECSTACK: |
777 | flag_execstack = 1; | |
778 | flag_noexecstack = 0; | |
779 | break; | |
780 | ||
781 | case OPTION_NOEXECSTACK: | |
782 | flag_noexecstack = 1; | |
783 | flag_execstack = 0; | |
784 | break; | |
785 | #endif | |
252b5132 RH |
786 | case 'Z': |
787 | flag_always_generate_output = 1; | |
788 | break; | |
789 | ||
5a14ab23 L |
790 | case OPTION_AL: |
791 | listing |= LISTING_LISTING; | |
792 | if (optarg) | |
793 | listing_filename = xstrdup (optarg); | |
794 | break; | |
795 | ||
caa32fe5 NC |
796 | case OPTION_ALTERNATE: |
797 | optarg = old_argv [optind - 1]; | |
798 | while (* optarg == '-') | |
799 | optarg ++; | |
800 | ||
801 | if (strcmp (optarg, "alternate") == 0) | |
802 | { | |
803 | flag_macro_alternate = 1; | |
804 | break; | |
805 | } | |
806 | optarg ++; | |
807 | /* Fall through. */ | |
808 | ||
252b5132 RH |
809 | case 'a': |
810 | if (optarg) | |
811 | { | |
fb767913 NC |
812 | if (optarg != old_argv[optind] && optarg[-1] == '=') |
813 | --optarg; | |
814 | ||
7f6d05e8 CP |
815 | if (md_parse_option (optc, optarg) != 0) |
816 | break; | |
817 | ||
252b5132 RH |
818 | while (*optarg) |
819 | { | |
820 | switch (*optarg) | |
821 | { | |
822 | case 'c': | |
823 | listing |= LISTING_NOCOND; | |
824 | break; | |
825 | case 'd': | |
826 | listing |= LISTING_NODEBUG; | |
827 | break; | |
828 | case 'h': | |
829 | listing |= LISTING_HLL; | |
830 | break; | |
831 | case 'l': | |
832 | listing |= LISTING_LISTING; | |
833 | break; | |
834 | case 'm': | |
835 | listing |= LISTING_MACEXP; | |
836 | break; | |
837 | case 'n': | |
838 | listing |= LISTING_NOFORM; | |
839 | break; | |
840 | case 's': | |
841 | listing |= LISTING_SYMBOLS; | |
842 | break; | |
843 | case '=': | |
844 | listing_filename = xstrdup (optarg + 1); | |
845 | optarg += strlen (listing_filename); | |
846 | break; | |
847 | default: | |
848 | as_fatal (_("invalid listing option `%c'"), *optarg); | |
849 | break; | |
850 | } | |
851 | optarg++; | |
852 | } | |
853 | } | |
854 | if (!listing) | |
855 | listing = LISTING_DEFAULT; | |
856 | break; | |
857 | ||
858 | case 'D': | |
76b0a8c0 KH |
859 | /* DEBUG is implemented: it debugs different |
860 | things from other people's assemblers. */ | |
252b5132 RH |
861 | flag_debug = 1; |
862 | break; | |
863 | ||
864 | case 'f': | |
865 | flag_no_comments = 1; | |
866 | break; | |
867 | ||
868 | case 'I': | |
76b0a8c0 | 869 | { /* Include file directory. */ |
252b5132 | 870 | char *temp = xstrdup (optarg); |
329e276d | 871 | |
252b5132 RH |
872 | add_include_dir (temp); |
873 | break; | |
874 | } | |
875 | ||
876 | case 'o': | |
877 | out_file_name = xstrdup (optarg); | |
878 | break; | |
879 | ||
880 | case 'w': | |
881 | break; | |
882 | ||
883 | case 'X': | |
76b0a8c0 | 884 | /* -X means treat warnings as errors. */ |
252b5132 | 885 | break; |
4bdd3565 NC |
886 | |
887 | case OPTION_REDUCE_MEMORY_OVERHEADS: | |
888 | /* The only change we make at the moment is to reduce | |
889 | the size of the hash tables that we use. */ | |
890 | set_gas_hash_table_size (4051); | |
891 | break; | |
892 | ||
893 | case OPTION_HASH_TABLE_SIZE: | |
894 | { | |
f7a568ea | 895 | unsigned long new_size; |
4bdd3565 NC |
896 | |
897 | new_size = strtoul (optarg, NULL, 0); | |
898 | if (new_size) | |
899 | set_gas_hash_table_size (new_size); | |
900 | else | |
901 | as_fatal (_("--hash-size needs a numeric argument")); | |
902 | break; | |
903 | } | |
252b5132 RH |
904 | } |
905 | } | |
906 | ||
907 | free (shortopts); | |
908 | free (longopts); | |
909 | ||
910 | *pargc = new_argc; | |
911 | *pargv = new_argv; | |
acebd4ce AS |
912 | |
913 | #ifdef md_after_parse_args | |
914 | md_after_parse_args (); | |
915 | #endif | |
252b5132 RH |
916 | } |
917 | ||
33948635 NC |
918 | static void |
919 | dump_statistics (void) | |
920 | { | |
921 | #ifdef HAVE_SBRK | |
922 | char *lim = (char *) sbrk (0); | |
923 | #endif | |
924 | long run_time = get_run_time () - start_time; | |
925 | ||
926 | fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"), | |
927 | myname, run_time / 1000000, run_time % 1000000); | |
928 | #ifdef HAVE_SBRK | |
929 | fprintf (stderr, _("%s: data size %ld\n"), | |
930 | myname, (long) (lim - (char *) &environ)); | |
931 | #endif | |
252b5132 | 932 | |
33948635 NC |
933 | subsegs_print_statistics (stderr); |
934 | write_print_statistics (stderr); | |
935 | symbol_print_statistics (stderr); | |
936 | read_print_statistics (stderr); | |
937 | ||
938 | #ifdef tc_print_statistics | |
939 | tc_print_statistics (stderr); | |
940 | #endif | |
941 | ||
942 | #ifdef obj_print_statistics | |
943 | obj_print_statistics (stderr); | |
944 | #endif | |
945 | } | |
946 | ||
0d474464 L |
947 | #ifndef OBJ_VMS |
948 | static void | |
949 | close_output_file (void) | |
950 | { | |
951 | output_file_close (out_file_name); | |
952 | } | |
953 | #endif | |
954 | ||
33948635 NC |
955 | /* The interface between the macro code and gas expression handling. */ |
956 | ||
957 | static int | |
958 | macro_expr (const char *emsg, int idx, sb *in, int *val) | |
959 | { | |
960 | char *hold; | |
961 | expressionS ex; | |
962 | ||
963 | sb_terminate (in); | |
964 | ||
965 | hold = input_line_pointer; | |
966 | input_line_pointer = in->ptr + idx; | |
9497f5ac | 967 | expression_and_evaluate (&ex); |
33948635 NC |
968 | idx = input_line_pointer - in->ptr; |
969 | input_line_pointer = hold; | |
970 | ||
971 | if (ex.X_op != O_constant) | |
972 | as_bad ("%s", emsg); | |
973 | ||
974 | *val = (int) ex.X_add_number; | |
975 | ||
976 | return idx; | |
977 | } | |
978 | \f | |
979 | /* Here to attempt 1 pass over each input file. | |
980 | We scan argv[*] looking for filenames or exactly "" which is | |
981 | shorthand for stdin. Any argv that is NULL is not a file-name. | |
982 | We set need_pass_2 TRUE if, after this, we still have unresolved | |
983 | expressions of the form (unknown value)+-(unknown value). | |
984 | ||
985 | Note the un*x semantics: there is only 1 logical input file, but it | |
986 | may be a catenation of many 'physical' input files. */ | |
987 | ||
988 | static void | |
989 | perform_an_assembly_pass (int argc, char ** argv) | |
990 | { | |
991 | int saw_a_file = 0; | |
33948635 | 992 | flagword applicable; |
33948635 NC |
993 | |
994 | need_pass_2 = 0; | |
995 | ||
33948635 NC |
996 | /* Create the standard sections, and those the assembler uses |
997 | internally. */ | |
998 | text_section = subseg_new (TEXT_SECTION_NAME, 0); | |
999 | data_section = subseg_new (DATA_SECTION_NAME, 0); | |
1000 | bss_section = subseg_new (BSS_SECTION_NAME, 0); | |
1001 | /* @@ FIXME -- we're setting the RELOC flag so that sections are assumed | |
1002 | to have relocs, otherwise we don't find out in time. */ | |
1003 | applicable = bfd_applicable_section_flags (stdoutput); | |
1004 | bfd_set_section_flags (stdoutput, text_section, | |
1005 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
1006 | | SEC_CODE | SEC_READONLY)); | |
1007 | bfd_set_section_flags (stdoutput, data_section, | |
1008 | applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | |
1009 | | SEC_DATA)); | |
1010 | bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC); | |
1011 | seg_info (bss_section)->bss = 1; | |
1012 | subseg_new (BFD_ABS_SECTION_NAME, 0); | |
1013 | subseg_new (BFD_UND_SECTION_NAME, 0); | |
1014 | reg_section = subseg_new ("*GAS `reg' section*", 0); | |
1015 | expr_section = subseg_new ("*GAS `expr' section*", 0); | |
1016 | ||
33948635 NC |
1017 | subseg_set (text_section, 0); |
1018 | ||
1019 | /* This may add symbol table entries, which requires having an open BFD, | |
7be1c489 | 1020 | and sections already created. */ |
33948635 NC |
1021 | md_begin (); |
1022 | ||
1023 | #ifdef USING_CGEN | |
1024 | gas_cgen_begin (); | |
1025 | #endif | |
1026 | #ifdef obj_begin | |
1027 | obj_begin (); | |
1028 | #endif | |
1029 | ||
1030 | /* Skip argv[0]. */ | |
1031 | argv++; | |
1032 | argc--; | |
1033 | ||
1034 | while (argc--) | |
1035 | { | |
1036 | if (*argv) | |
1037 | { /* Is it a file-name argument? */ | |
1038 | PROGRESS (1); | |
1039 | saw_a_file++; | |
1040 | /* argv->"" if stdin desired, else->filename. */ | |
1041 | read_a_source_file (*argv); | |
1042 | } | |
1043 | argv++; /* Completed that argv. */ | |
1044 | } | |
1045 | if (!saw_a_file) | |
1046 | read_a_source_file (""); | |
1047 | } | |
1048 | \f | |
104d59d1 JM |
1049 | #ifdef OBJ_ELF |
1050 | static void | |
1051 | create_obj_attrs_section (void) | |
1052 | { | |
1053 | segT s; | |
1054 | char *p; | |
1055 | addressT addr; | |
1056 | offsetT size; | |
1057 | const char *name; | |
1058 | ||
1059 | size = bfd_elf_obj_attr_size (stdoutput); | |
1060 | if (size) | |
1061 | { | |
1062 | name = get_elf_backend_data (stdoutput)->obj_attrs_section; | |
1063 | if (!name) | |
1064 | name = ".gnu.attributes"; | |
1065 | s = subseg_new (name, 0); | |
1066 | elf_section_type (s) | |
1067 | = get_elf_backend_data (stdoutput)->obj_attrs_section_type; | |
1068 | bfd_set_section_flags (stdoutput, s, SEC_READONLY | SEC_DATA); | |
1069 | addr = frag_now_fix (); | |
1070 | p = frag_more (size); | |
1071 | bfd_elf_set_obj_attr_contents (stdoutput, (bfd_byte *)p, size); | |
1072 | } | |
1073 | } | |
1074 | #endif | |
1075 | \f | |
a80076a1 | 1076 | |
76b0a8c0 | 1077 | int |
33948635 | 1078 | main (int argc, char ** argv) |
252b5132 | 1079 | { |
252b5132 RH |
1080 | int macro_strip_at; |
1081 | int keep_it; | |
1082 | ||
1083 | start_time = get_run_time (); | |
1084 | ||
1085 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
1086 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
1087 | #endif |
1088 | #if defined (HAVE_SETLOCALE) | |
1089 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
1090 | #endif |
1091 | bindtextdomain (PACKAGE, LOCALEDIR); | |
1092 | textdomain (PACKAGE); | |
1093 | ||
1094 | if (debug_memory) | |
091e58c1 | 1095 | chunksize = 64; |
252b5132 RH |
1096 | |
1097 | #ifdef HOST_SPECIAL_INIT | |
1098 | HOST_SPECIAL_INIT (argc, argv); | |
1099 | #endif | |
1100 | ||
1101 | myname = argv[0]; | |
1102 | xmalloc_set_program_name (myname); | |
1103 | ||
869b9d07 MM |
1104 | expandargv (&argc, &argv); |
1105 | ||
252b5132 RH |
1106 | START_PROGRESS (myname, 0); |
1107 | ||
1108 | #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME | |
1109 | #define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out" | |
1110 | #endif | |
1111 | ||
1112 | out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; | |
1113 | ||
1114 | hex_init (); | |
252b5132 RH |
1115 | bfd_init (); |
1116 | bfd_set_error_program_name (myname); | |
252b5132 RH |
1117 | |
1118 | #ifdef USE_EMULATIONS | |
1119 | select_emulation_mode (argc, argv); | |
1120 | #endif | |
1121 | ||
1122 | PROGRESS (1); | |
f7a568ea NC |
1123 | /* Call parse_args before any of the init/begin functions |
1124 | so that switches like --hash-size can be honored. */ | |
1125 | parse_args (&argc, &argv); | |
252b5132 RH |
1126 | symbol_begin (); |
1127 | frag_init (); | |
1128 | subsegs_begin (); | |
252b5132 RH |
1129 | read_begin (); |
1130 | input_scrub_begin (); | |
1131 | expr_begin (); | |
1132 | ||
0d474464 L |
1133 | #ifndef OBJ_VMS /* Does its own file handling. */ |
1134 | /* It has to be called after dump_statistics (). */ | |
1135 | xatexit (close_output_file); | |
1136 | #endif | |
1137 | ||
252b5132 RH |
1138 | if (flag_print_statistics) |
1139 | xatexit (dump_statistics); | |
1140 | ||
252b5132 RH |
1141 | macro_strip_at = 0; |
1142 | #ifdef TC_I960 | |
1143 | macro_strip_at = flag_mri; | |
1144 | #endif | |
252b5132 | 1145 | |
caa32fe5 | 1146 | macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr); |
252b5132 RH |
1147 | |
1148 | PROGRESS (1); | |
1149 | ||
252b5132 RH |
1150 | output_file_create (out_file_name); |
1151 | assert (stdoutput != 0); | |
252b5132 RH |
1152 | |
1153 | #ifdef tc_init_after_args | |
1154 | tc_init_after_args (); | |
1155 | #endif | |
1156 | ||
1157 | itbl_init (); | |
1158 | ||
1159 | /* Now that we have fully initialized, and have created the output | |
1160 | file, define any symbols requested by --defsym command line | |
1161 | arguments. */ | |
1162 | while (defsyms != NULL) | |
1163 | { | |
1164 | symbolS *sym; | |
1165 | struct defsym_list *next; | |
1166 | ||
1167 | sym = symbol_new (defsyms->name, absolute_section, defsyms->value, | |
1168 | &zero_address_frag); | |
bf083c64 NC |
1169 | /* Make symbols defined on the command line volatile, so that they |
1170 | can be redefined inside a source file. This makes this assembler's | |
1171 | behaviour compatible with earlier versions, but it may not be | |
1172 | completely intuitive. */ | |
1173 | S_SET_VOLATILE (sym); | |
252b5132 RH |
1174 | symbol_table_insert (sym); |
1175 | next = defsyms->next; | |
1176 | free (defsyms); | |
1177 | defsyms = next; | |
1178 | } | |
1179 | ||
1180 | PROGRESS (1); | |
1181 | ||
76b0a8c0 KH |
1182 | /* Assemble it. */ |
1183 | perform_an_assembly_pass (argc, argv); | |
252b5132 RH |
1184 | |
1185 | cond_finish_check (-1); | |
1186 | ||
1187 | #ifdef md_end | |
1188 | md_end (); | |
1189 | #endif | |
1190 | ||
104d59d1 | 1191 | #ifdef OBJ_ELF |
7ace4e4c JM |
1192 | if (IS_ELF) |
1193 | create_obj_attrs_section (); | |
104d59d1 JM |
1194 | #endif |
1195 | ||
7be1c489 | 1196 | #if defined OBJ_ELF || defined OBJ_MAYBE_ELF |
68d55fe3 JJ |
1197 | if ((flag_execstack || flag_noexecstack) |
1198 | && OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
1199 | { | |
1200 | segT gnustack; | |
1201 | ||
1202 | gnustack = subseg_new (".note.GNU-stack", 0); | |
1203 | bfd_set_section_flags (stdoutput, gnustack, | |
1204 | SEC_READONLY | (flag_execstack ? SEC_CODE : 0)); | |
1205 | ||
1206 | } | |
1207 | #endif | |
1208 | ||
43ad3147 | 1209 | /* If we've been collecting dwarf2 .debug_line info, either for |
39bb5fe6 RH |
1210 | assembly debugging or on behalf of the compiler, emit it now. */ |
1211 | dwarf2_finish (); | |
1212 | ||
a4447b93 RH |
1213 | /* If we constructed dwarf2 .eh_frame info, either via .cfi |
1214 | directives from the user or by the backend, emit it now. */ | |
54cfded0 | 1215 | cfi_finish (); |
54cfded0 | 1216 | |
252b5132 RH |
1217 | if (seen_at_least_1_file () |
1218 | && (flag_always_generate_output || had_errors () == 0)) | |
1219 | keep_it = 1; | |
1220 | else | |
1221 | keep_it = 0; | |
1222 | ||
252b5132 RH |
1223 | /* This used to be done at the start of write_object_file in |
1224 | write.c, but that caused problems when doing listings when | |
1225 | keep_it was zero. This could probably be moved above md_end, but | |
1226 | I didn't want to risk the change. */ | |
1227 | subsegs_finish (); | |
252b5132 RH |
1228 | |
1229 | if (keep_it) | |
1230 | write_object_file (); | |
1231 | ||
7f6a71ff JM |
1232 | fflush (stderr); |
1233 | ||
252b5132 RH |
1234 | #ifndef NO_LISTING |
1235 | listing_print (listing_filename); | |
1236 | #endif | |
1237 | ||
76b0a8c0 KH |
1238 | if (flag_fatal_warnings && had_warnings () > 0 && had_errors () == 0) |
1239 | as_bad (_("%d warnings, treating warnings as errors"), had_warnings ()); | |
2bdd6cf5 | 1240 | |
252b5132 RH |
1241 | if (had_errors () > 0 && ! flag_always_generate_output) |
1242 | keep_it = 0; | |
1243 | ||
1244 | if (!keep_it) | |
bb14f524 | 1245 | unlink_if_ordinary (out_file_name); |
252b5132 RH |
1246 | |
1247 | input_scrub_end (); | |
1248 | ||
1249 | END_PROGRESS (myname); | |
1250 | ||
1251 | /* Use xexit instead of return, because under VMS environments they | |
1252 | may not place the same interpretation on the value given. */ | |
1253 | if (had_errors () > 0) | |
1254 | xexit (EXIT_FAILURE); | |
1255 | ||
1256 | /* Only generate dependency file if assembler was successful. */ | |
1257 | print_dependencies (); | |
1258 | ||
1259 | xexit (EXIT_SUCCESS); | |
1260 | } |