Commit | Line | Data |
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252b5132 RH |
1 | /* objcopy.c -- copy object file from input to output, optionally massaging it. |
2 | Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 1999 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | \f | |
22 | #include "bfd.h" | |
23 | #include "progress.h" | |
24 | #include "bucomm.h" | |
25 | #include "getopt.h" | |
26 | #include "libiberty.h" | |
27 | #include "budbg.h" | |
28 | #include <sys/stat.h> | |
29 | ||
30 | /* A list of symbols to explicitly strip out, or to keep. A linked | |
31 | list is good enough for a small number from the command line, but | |
32 | this will slow things down a lot if many symbols are being | |
33 | deleted. */ | |
34 | ||
35 | struct symlist | |
36 | { | |
37 | const char *name; | |
38 | struct symlist *next; | |
39 | }; | |
40 | ||
41 | static void copy_usage PARAMS ((FILE *, int)); | |
42 | static void strip_usage PARAMS ((FILE *, int)); | |
43 | static flagword parse_flags PARAMS ((const char *)); | |
44 | static struct section_list *find_section_list PARAMS ((const char *, boolean)); | |
45 | static void setup_section PARAMS ((bfd *, asection *, PTR)); | |
46 | static void copy_section PARAMS ((bfd *, asection *, PTR)); | |
47 | static void get_sections PARAMS ((bfd *, asection *, PTR)); | |
48 | static int compare_section_lma PARAMS ((const PTR, const PTR)); | |
49 | static void add_specific_symbol PARAMS ((const char *, struct symlist **)); | |
50 | static boolean is_specified_symbol PARAMS ((const char *, struct symlist *)); | |
51 | static boolean is_strip_section PARAMS ((bfd *, asection *)); | |
52 | static unsigned int filter_symbols | |
53 | PARAMS ((bfd *, bfd *, asymbol **, asymbol **, long)); | |
54 | static void mark_symbols_used_in_relocations PARAMS ((bfd *, asection *, PTR)); | |
55 | static void filter_bytes PARAMS ((char *, bfd_size_type *)); | |
56 | static boolean write_debugging_info PARAMS ((bfd *, PTR, long *, asymbol ***)); | |
57 | static void copy_object PARAMS ((bfd *, bfd *)); | |
58 | static void copy_archive PARAMS ((bfd *, bfd *, const char *)); | |
59 | static void copy_file | |
60 | PARAMS ((const char *, const char *, const char *, const char *)); | |
61 | static int strip_main PARAMS ((int, char **)); | |
62 | static int copy_main PARAMS ((int, char **)); | |
63 | ||
64 | #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;} | |
65 | ||
66 | static asymbol **isympp = NULL; /* Input symbols */ | |
67 | static asymbol **osympp = NULL; /* Output symbols that survive stripping */ | |
68 | ||
69 | /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */ | |
70 | static int copy_byte = -1; | |
71 | static int interleave = 4; | |
72 | ||
73 | static boolean verbose; /* Print file and target names. */ | |
74 | static boolean preserve_dates; /* Preserve input file timestamp. */ | |
75 | static int status = 0; /* Exit status. */ | |
76 | ||
77 | enum strip_action | |
78 | { | |
79 | STRIP_UNDEF, | |
80 | STRIP_NONE, /* don't strip */ | |
81 | STRIP_DEBUG, /* strip all debugger symbols */ | |
82 | STRIP_UNNEEDED, /* strip unnecessary symbols */ | |
83 | STRIP_ALL /* strip all symbols */ | |
84 | }; | |
85 | ||
86 | /* Which symbols to remove. */ | |
87 | static enum strip_action strip_symbols; | |
88 | ||
89 | enum locals_action | |
90 | { | |
91 | LOCALS_UNDEF, | |
92 | LOCALS_START_L, /* discard locals starting with L */ | |
93 | LOCALS_ALL /* discard all locals */ | |
94 | }; | |
95 | ||
96 | /* Which local symbols to remove. Overrides STRIP_ALL. */ | |
97 | static enum locals_action discard_locals; | |
98 | ||
99 | /* What kind of change to perform. */ | |
100 | enum change_action | |
101 | { | |
102 | CHANGE_IGNORE, | |
103 | CHANGE_MODIFY, | |
104 | CHANGE_SET | |
105 | }; | |
106 | ||
107 | /* Structure used to hold lists of sections and actions to take. */ | |
108 | struct section_list | |
109 | { | |
110 | struct section_list * next; /* Next section to change. */ | |
111 | const char * name; /* Section name. */ | |
112 | boolean used; /* Whether this entry was used. */ | |
113 | boolean remove; /* Whether to remove this section. */ | |
f91ea849 | 114 | boolean copy; /* Whether to copy this section. */ |
252b5132 RH |
115 | enum change_action change_vma;/* Whether to change or set VMA. */ |
116 | bfd_vma vma_val; /* Amount to change by or set to. */ | |
117 | enum change_action change_lma;/* Whether to change or set LMA. */ | |
118 | bfd_vma lma_val; /* Amount to change by or set to. */ | |
119 | boolean set_flags; /* Whether to set the section flags. */ | |
120 | flagword flags; /* What to set the section flags to. */ | |
121 | }; | |
122 | ||
123 | static struct section_list *change_sections; | |
124 | static boolean sections_removed; | |
f91ea849 | 125 | static boolean sections_copied; |
252b5132 RH |
126 | |
127 | /* Changes to the start address. */ | |
128 | static bfd_vma change_start = 0; | |
129 | static boolean set_start_set = false; | |
130 | static bfd_vma set_start; | |
131 | ||
132 | /* Changes to section addresses. */ | |
133 | static bfd_vma change_section_address = 0; | |
134 | ||
135 | /* Filling gaps between sections. */ | |
136 | static boolean gap_fill_set = false; | |
137 | static bfd_byte gap_fill = 0; | |
138 | ||
139 | /* Pad to a given address. */ | |
140 | static boolean pad_to_set = false; | |
141 | static bfd_vma pad_to; | |
142 | ||
143 | /* List of sections to add. */ | |
144 | ||
145 | struct section_add | |
146 | { | |
147 | /* Next section to add. */ | |
148 | struct section_add *next; | |
149 | /* Name of section to add. */ | |
150 | const char *name; | |
151 | /* Name of file holding section contents. */ | |
152 | const char *filename; | |
153 | /* Size of file. */ | |
154 | size_t size; | |
155 | /* Contents of file. */ | |
156 | bfd_byte *contents; | |
157 | /* BFD section, after it has been added. */ | |
158 | asection *section; | |
159 | }; | |
160 | ||
161 | static struct section_add *add_sections; | |
162 | ||
163 | /* Whether to convert debugging information. */ | |
164 | ||
165 | static boolean convert_debugging = false; | |
166 | ||
167 | /* Whether to change the leading character in symbol names. */ | |
168 | ||
169 | static boolean change_leading_char = false; | |
170 | ||
171 | /* Whether to remove the leading character from global symbol names. */ | |
172 | ||
173 | static boolean remove_leading_char = false; | |
174 | ||
175 | /* List of symbols to strip, keep, localize, and weaken. */ | |
176 | ||
177 | static struct symlist *strip_specific_list = NULL; | |
178 | static struct symlist *keep_specific_list = NULL; | |
179 | static struct symlist *localize_specific_list = NULL; | |
180 | static struct symlist *weaken_specific_list = NULL; | |
181 | ||
182 | /* If this is true, we weaken global symbols (set BSF_WEAK). */ | |
183 | ||
184 | static boolean weaken = false; | |
185 | ||
186 | /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ | |
187 | ||
188 | #define OPTION_ADD_SECTION 150 | |
189 | #define OPTION_CHANGE_ADDRESSES (OPTION_ADD_SECTION + 1) | |
190 | #define OPTION_CHANGE_LEADING_CHAR (OPTION_CHANGE_ADDRESSES + 1) | |
191 | #define OPTION_CHANGE_START (OPTION_CHANGE_LEADING_CHAR + 1) | |
192 | #define OPTION_CHANGE_SECTION_ADDRESS (OPTION_CHANGE_START + 1) | |
193 | #define OPTION_CHANGE_SECTION_LMA (OPTION_CHANGE_SECTION_ADDRESS + 1) | |
194 | #define OPTION_CHANGE_SECTION_VMA (OPTION_CHANGE_SECTION_LMA + 1) | |
195 | #define OPTION_CHANGE_WARNINGS (OPTION_CHANGE_SECTION_VMA + 1) | |
196 | #define OPTION_DEBUGGING (OPTION_CHANGE_WARNINGS + 1) | |
197 | #define OPTION_GAP_FILL (OPTION_DEBUGGING + 1) | |
198 | #define OPTION_NO_CHANGE_WARNINGS (OPTION_GAP_FILL + 1) | |
199 | #define OPTION_PAD_TO (OPTION_NO_CHANGE_WARNINGS + 1) | |
200 | #define OPTION_REMOVE_LEADING_CHAR (OPTION_PAD_TO + 1) | |
201 | #define OPTION_SET_SECTION_FLAGS (OPTION_REMOVE_LEADING_CHAR + 1) | |
202 | #define OPTION_SET_START (OPTION_SET_SECTION_FLAGS + 1) | |
203 | #define OPTION_STRIP_UNNEEDED (OPTION_SET_START + 1) | |
204 | #define OPTION_WEAKEN (OPTION_STRIP_UNNEEDED + 1) | |
205 | ||
206 | /* Options to handle if running as "strip". */ | |
207 | ||
208 | static struct option strip_options[] = | |
209 | { | |
210 | {"discard-all", no_argument, 0, 'x'}, | |
211 | {"discard-locals", no_argument, 0, 'X'}, | |
212 | {"format", required_argument, 0, 'F'}, /* Obsolete */ | |
213 | {"help", no_argument, 0, 'h'}, | |
214 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ | |
215 | {"input-target", required_argument, 0, 'I'}, | |
216 | {"keep-symbol", required_argument, 0, 'K'}, | |
217 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ | |
218 | {"output-target", required_argument, 0, 'O'}, | |
219 | {"preserve-dates", no_argument, 0, 'p'}, | |
220 | {"remove-section", required_argument, 0, 'R'}, | |
221 | {"strip-all", no_argument, 0, 's'}, | |
222 | {"strip-debug", no_argument, 0, 'S'}, | |
223 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, | |
224 | {"strip-symbol", required_argument, 0, 'N'}, | |
225 | {"target", required_argument, 0, 'F'}, | |
226 | {"verbose", no_argument, 0, 'v'}, | |
227 | {"version", no_argument, 0, 'V'}, | |
228 | {0, no_argument, 0, 0} | |
229 | }; | |
230 | ||
231 | /* Options to handle if running as "objcopy". */ | |
232 | ||
233 | static struct option copy_options[] = | |
234 | { | |
235 | {"add-section", required_argument, 0, OPTION_ADD_SECTION}, | |
236 | {"adjust-start", required_argument, 0, OPTION_CHANGE_START}, | |
237 | {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES}, | |
238 | {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, | |
239 | {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, | |
240 | {"byte", required_argument, 0, 'b'}, | |
241 | {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES}, | |
242 | {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR}, | |
243 | {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, | |
244 | {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA}, | |
245 | {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA}, | |
246 | {"change-start", required_argument, 0, OPTION_CHANGE_START}, | |
247 | {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, | |
248 | {"debugging", no_argument, 0, OPTION_DEBUGGING}, | |
249 | {"discard-all", no_argument, 0, 'x'}, | |
250 | {"discard-locals", no_argument, 0, 'X'}, | |
f91ea849 | 251 | {"only-section", required_argument, 0, 'j'}, |
252b5132 RH |
252 | {"format", required_argument, 0, 'F'}, /* Obsolete */ |
253 | {"gap-fill", required_argument, 0, OPTION_GAP_FILL}, | |
254 | {"help", no_argument, 0, 'h'}, | |
255 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ | |
256 | {"input-target", required_argument, 0, 'I'}, | |
257 | {"interleave", required_argument, 0, 'i'}, | |
258 | {"keep-symbol", required_argument, 0, 'K'}, | |
259 | {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, | |
260 | {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, | |
261 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ | |
262 | {"output-target", required_argument, 0, 'O'}, | |
263 | {"pad-to", required_argument, 0, OPTION_PAD_TO}, | |
264 | {"preserve-dates", no_argument, 0, 'p'}, | |
265 | {"localize-symbol", required_argument, 0, 'L'}, | |
266 | {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR}, | |
267 | {"remove-section", required_argument, 0, 'R'}, | |
268 | {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS}, | |
269 | {"set-start", required_argument, 0, OPTION_SET_START}, | |
270 | {"strip-all", no_argument, 0, 'S'}, | |
271 | {"strip-debug", no_argument, 0, 'g'}, | |
272 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, | |
273 | {"strip-symbol", required_argument, 0, 'N'}, | |
274 | {"target", required_argument, 0, 'F'}, | |
275 | {"verbose", no_argument, 0, 'v'}, | |
276 | {"version", no_argument, 0, 'V'}, | |
277 | {"weaken", no_argument, 0, OPTION_WEAKEN}, | |
278 | {"weaken-symbol", required_argument, 0, 'W'}, | |
279 | {0, no_argument, 0, 0} | |
280 | }; | |
281 | ||
282 | /* IMPORTS */ | |
283 | extern char *program_name; | |
284 | ||
285 | /* This flag distinguishes between strip and objcopy: | |
286 | 1 means this is 'strip'; 0 means this is 'objcopy'. | |
287 | -1 means if we should use argv[0] to decide. */ | |
288 | extern int is_strip; | |
289 | ||
290 | ||
291 | static void | |
292 | copy_usage (stream, exit_status) | |
293 | FILE *stream; | |
294 | int exit_status; | |
295 | { | |
d5bcb29d NC |
296 | fprintf (stream, _("Usage: %s <switches> in-file [out-file]\n"), program_name); |
297 | fprintf (stream, _(" The switches are:\n")); | |
252b5132 | 298 | fprintf (stream, _("\ |
d5bcb29d NC |
299 | -I --input-target <bfdname> Assume input file is in format <bfdname>\n\ |
300 | -O --output-target <bfdname> Create an output file in format <bfdname>\n\ | |
301 | -F --target <bfdname> Set both input and output format to <bfdname>\n\ | |
302 | --debugging Convert debugging information, if possible\n\ | |
303 | -p --preserve-dates Copy modified/access timestamps to the output\n\ | |
304 | -j --only-section <name> Only copy section <name> into the output\n\ | |
305 | -R --remove-section <name> Remove section <name> from the output\n\ | |
306 | -S --strip-all Remove all symbol and relocation information\n\ | |
307 | -g --strip-debug Remove all debugging symbols\n\ | |
308 | --strip-unneeded Remove all symbols not needed by relocations\n\ | |
309 | -N --strip-symbol <name> Do not copy symbol <name>\n\ | |
310 | -K --keep-symbol <name> Only copy symbol <name>\n\ | |
311 | -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\ | |
312 | -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\ | |
313 | --weaken Force all global symbols to be marked as weak\n\ | |
314 | -x --discard-all Remove all non-global symbols\n\ | |
315 | -X --discard-locals Remove any compiler-generated symbols\n\ | |
316 | -i --interleave <number> Only copy one out of every <number> bytes\n\ | |
317 | -b --byte <num> Select byte <num> in every interleaved block\n\ | |
318 | --gap-fill <val> Fill gaps between sections with <val>\n\ | |
319 | --pad-to <addr> Pad the last section up to address <addr>\n\ | |
320 | --set-start <addr> Set the start address to <addr>\n\ | |
321 | {--change-start|--adjust-start} <incr>\n\ | |
322 | Add <incr> to the start address\n\ | |
323 | {--change-addresses|--adjust-vma} <incr>\n\ | |
324 | Add <incr> to LMA, VMA and start addresses\n\ | |
325 | {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\ | |
326 | Change LMA and VMA of section <name> by <val>\n\ | |
327 | --change-section-lma <name>{=|+|-}<val>\n\ | |
328 | Change the LMA of section <name> by <val>\n\ | |
329 | --change-section-vma <name>{=|+|-}<val>\n\ | |
330 | Change the VMA of section <name> by <val>\n\ | |
331 | {--[no-]change-warnings|--[no-]adjust-warnings}\n\ | |
332 | Warn if a named section does not exist\n\ | |
333 | --set-section-flags <name>=<flags>\n\ | |
334 | Set section <name>'s properties to <flags>\n\ | |
335 | --add-section <name>=<file> Add section <name> found in <file> to output\n\ | |
336 | --change-leading-char Force output format's leading character style\n\ | |
337 | --remove-leading-char Remove leading character from global symbols\n\ | |
338 | -v --verbose List all object files modified\n\ | |
339 | -V --version Display this program's version number\n\ | |
340 | -h --help Display this output\n\ | |
341 | ")); | |
252b5132 RH |
342 | list_supported_targets (program_name, stream); |
343 | if (exit_status == 0) | |
c20f4f8c | 344 | fprintf (stream, REPORT_BUGS_TO); |
252b5132 RH |
345 | exit (exit_status); |
346 | } | |
347 | ||
348 | static void | |
349 | strip_usage (stream, exit_status) | |
350 | FILE *stream; | |
351 | int exit_status; | |
352 | { | |
d5bcb29d NC |
353 | fprintf (stream, _("Usage: %s <switches> in-file(s)\n"), program_name); |
354 | fprintf (stream, _(" The switches are:\n")); | |
252b5132 | 355 | fprintf (stream, _("\ |
d5bcb29d NC |
356 | -I --input-target <bfdname> Assume input file is in format <bfdname>\n\ |
357 | -O --output-target <bfdname> Create an output file in format <bfdname>\n\ | |
358 | -F --target <bfdname> Set both input and output format to <bfdname>\n\ | |
359 | -p --preserve-dates Copy modified/access timestamps to the output\n\ | |
360 | -R --remove-section <name> Remove section <name> from the output\n\ | |
361 | -s --strip-all Remove all symbol and relocation information\n\ | |
362 | -g -S --strip-debug Remove all debugging symbols\n\ | |
363 | --strip-unneeded Remove all symbols not needed by relocations\n\ | |
364 | -N --strip-symbol <name> Do not copy symbol <name>\n\ | |
365 | -K --keep-symbol <name> Only copy symbol <name>\n\ | |
366 | -x --discard-all Remove all non-global symbols\n\ | |
367 | -X --discard-locals Remove any compiler-generated symbols\n\ | |
368 | -v --verbose List all object files modified\n\ | |
369 | -V --version Display this program's version number\n\ | |
370 | -h --help Display this output\n\ | |
371 | -o <file> Place stripped output into <file>\n\ | |
372 | ")); | |
373 | ||
252b5132 RH |
374 | list_supported_targets (program_name, stream); |
375 | if (exit_status == 0) | |
c20f4f8c | 376 | fprintf (stream, REPORT_BUGS_TO); |
252b5132 RH |
377 | exit (exit_status); |
378 | } | |
379 | ||
380 | /* Parse section flags into a flagword, with a fatal error if the | |
381 | string can't be parsed. */ | |
382 | ||
383 | static flagword | |
384 | parse_flags (s) | |
385 | const char *s; | |
386 | { | |
387 | flagword ret; | |
388 | const char *snext; | |
389 | int len; | |
390 | ||
391 | ret = SEC_NO_FLAGS; | |
392 | ||
393 | do | |
394 | { | |
395 | snext = strchr (s, ','); | |
396 | if (snext == NULL) | |
397 | len = strlen (s); | |
398 | else | |
399 | { | |
400 | len = snext - s; | |
401 | ++snext; | |
402 | } | |
403 | ||
404 | if (0) ; | |
405 | #define PARSE_FLAG(fname,fval) \ | |
406 | else if (strncasecmp (fname, s, len) == 0) ret |= fval | |
407 | PARSE_FLAG ("alloc", SEC_ALLOC); | |
408 | PARSE_FLAG ("load", SEC_LOAD); | |
3994e2c6 | 409 | PARSE_FLAG ("noload", SEC_NEVER_LOAD); |
252b5132 | 410 | PARSE_FLAG ("readonly", SEC_READONLY); |
3994e2c6 | 411 | PARSE_FLAG ("debug", SEC_DEBUGGING); |
252b5132 RH |
412 | PARSE_FLAG ("code", SEC_CODE); |
413 | PARSE_FLAG ("data", SEC_DATA); | |
414 | PARSE_FLAG ("rom", SEC_ROM); | |
3994e2c6 | 415 | PARSE_FLAG ("share", SEC_SHARED); |
252b5132 RH |
416 | PARSE_FLAG ("contents", SEC_HAS_CONTENTS); |
417 | #undef PARSE_FLAG | |
418 | else | |
419 | { | |
420 | char *copy; | |
421 | ||
422 | copy = xmalloc (len + 1); | |
423 | strncpy (copy, s, len); | |
424 | copy[len] = '\0'; | |
425 | non_fatal (_("unrecognized section flag `%s'"), copy); | |
3994e2c6 | 426 | fatal (_("supported flags: alloc, load, noload, readonly, debug, code, data, rom, share, contents")); |
252b5132 RH |
427 | } |
428 | ||
429 | s = snext; | |
430 | } | |
431 | while (s != NULL); | |
432 | ||
433 | return ret; | |
434 | } | |
435 | ||
436 | /* Find and optionally add an entry in the change_sections list. */ | |
437 | ||
438 | static struct section_list * | |
439 | find_section_list (name, add) | |
440 | const char *name; | |
441 | boolean add; | |
442 | { | |
443 | register struct section_list *p; | |
444 | ||
445 | for (p = change_sections; p != NULL; p = p->next) | |
446 | if (strcmp (p->name, name) == 0) | |
447 | return p; | |
448 | ||
449 | if (! add) | |
450 | return NULL; | |
451 | ||
452 | p = (struct section_list *) xmalloc (sizeof (struct section_list)); | |
453 | p->name = name; | |
454 | p->used = false; | |
455 | p->remove = false; | |
f91ea849 | 456 | p->copy = false; |
252b5132 RH |
457 | p->change_vma = CHANGE_IGNORE; |
458 | p->change_lma = CHANGE_IGNORE; | |
459 | p->vma_val = 0; | |
460 | p->lma_val = 0; | |
461 | p->set_flags = false; | |
462 | p->flags = 0; | |
463 | ||
464 | p->next = change_sections; | |
465 | change_sections = p; | |
466 | ||
467 | return p; | |
468 | } | |
469 | ||
470 | /* Add a symbol to strip_specific_list. */ | |
471 | ||
472 | static void | |
473 | add_specific_symbol (name, list) | |
474 | const char *name; | |
475 | struct symlist **list; | |
476 | { | |
477 | struct symlist *tmp_list; | |
478 | ||
479 | tmp_list = (struct symlist *) xmalloc (sizeof (struct symlist)); | |
480 | tmp_list->name = name; | |
481 | tmp_list->next = *list; | |
482 | *list = tmp_list; | |
483 | } | |
484 | ||
485 | /* See whether a symbol should be stripped or kept based on | |
486 | strip_specific_list and keep_symbols. */ | |
487 | ||
488 | static boolean | |
489 | is_specified_symbol (name, list) | |
490 | const char *name; | |
491 | struct symlist *list; | |
492 | { | |
493 | struct symlist *tmp_list; | |
494 | ||
495 | for (tmp_list = list; tmp_list; tmp_list = tmp_list->next) | |
496 | { | |
497 | if (strcmp (name, tmp_list->name) == 0) | |
498 | return true; | |
499 | } | |
500 | return false; | |
501 | } | |
502 | ||
503 | /* See if a section is being removed. */ | |
504 | ||
505 | static boolean | |
506 | is_strip_section (abfd, sec) | |
b4c96d0d | 507 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
508 | asection *sec; |
509 | { | |
510 | struct section_list *p; | |
511 | ||
512 | if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0 | |
513 | && (strip_symbols == STRIP_DEBUG | |
514 | || strip_symbols == STRIP_UNNEEDED | |
515 | || strip_symbols == STRIP_ALL | |
516 | || discard_locals == LOCALS_ALL | |
517 | || convert_debugging)) | |
518 | return true; | |
519 | ||
f91ea849 | 520 | if (! sections_removed && ! sections_copied) |
252b5132 | 521 | return false; |
f91ea849 | 522 | |
252b5132 | 523 | p = find_section_list (bfd_get_section_name (abfd, sec), false); |
f91ea849 ILT |
524 | if (sections_removed && p != NULL && p->remove) |
525 | return true; | |
526 | if (sections_copied && (p == NULL || ! p->copy)) | |
527 | return true; | |
528 | return false; | |
252b5132 RH |
529 | } |
530 | ||
531 | /* Choose which symbol entries to copy; put the result in OSYMS. | |
532 | We don't copy in place, because that confuses the relocs. | |
533 | Return the number of symbols to print. */ | |
534 | ||
535 | static unsigned int | |
536 | filter_symbols (abfd, obfd, osyms, isyms, symcount) | |
537 | bfd *abfd; | |
538 | bfd *obfd; | |
539 | asymbol **osyms, **isyms; | |
540 | long symcount; | |
541 | { | |
542 | register asymbol **from = isyms, **to = osyms; | |
543 | long src_count = 0, dst_count = 0; | |
544 | ||
545 | for (; src_count < symcount; src_count++) | |
546 | { | |
547 | asymbol *sym = from[src_count]; | |
548 | flagword flags = sym->flags; | |
549 | const char *name = bfd_asymbol_name (sym); | |
550 | int keep; | |
551 | ||
552 | if (change_leading_char | |
553 | && (bfd_get_symbol_leading_char (abfd) | |
554 | != bfd_get_symbol_leading_char (obfd)) | |
555 | && (bfd_get_symbol_leading_char (abfd) == '\0' | |
556 | || (name[0] == bfd_get_symbol_leading_char (abfd)))) | |
557 | { | |
558 | if (bfd_get_symbol_leading_char (obfd) == '\0') | |
559 | name = bfd_asymbol_name (sym) = name + 1; | |
560 | else | |
561 | { | |
562 | char *n; | |
563 | ||
564 | n = xmalloc (strlen (name) + 2); | |
565 | n[0] = bfd_get_symbol_leading_char (obfd); | |
566 | if (bfd_get_symbol_leading_char (abfd) == '\0') | |
567 | strcpy (n + 1, name); | |
568 | else | |
569 | strcpy (n + 1, name + 1); | |
570 | name = bfd_asymbol_name (sym) = n; | |
571 | } | |
572 | } | |
573 | ||
574 | if (remove_leading_char | |
575 | && ((flags & BSF_GLOBAL) != 0 | |
576 | || (flags & BSF_WEAK) != 0 | |
577 | || bfd_is_und_section (bfd_get_section (sym)) | |
578 | || bfd_is_com_section (bfd_get_section (sym))) | |
579 | && name[0] == bfd_get_symbol_leading_char (abfd)) | |
580 | name = bfd_asymbol_name (sym) = name + 1; | |
581 | ||
582 | if (strip_symbols == STRIP_ALL) | |
583 | keep = 0; | |
584 | else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */ | |
585 | || ((flags & BSF_SECTION_SYM) != 0 | |
586 | && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags | |
587 | & BSF_KEEP) != 0)) | |
588 | keep = 1; | |
589 | else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */ | |
590 | || (flags & BSF_WEAK) != 0 | |
591 | || bfd_is_und_section (bfd_get_section (sym)) | |
592 | || bfd_is_com_section (bfd_get_section (sym))) | |
593 | keep = strip_symbols != STRIP_UNNEEDED; | |
594 | else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */ | |
595 | keep = (strip_symbols != STRIP_DEBUG | |
596 | && strip_symbols != STRIP_UNNEEDED | |
597 | && ! convert_debugging); | |
598 | else /* Local symbol. */ | |
599 | keep = (strip_symbols != STRIP_UNNEEDED | |
600 | && (discard_locals != LOCALS_ALL | |
601 | && (discard_locals != LOCALS_START_L | |
602 | || ! bfd_is_local_label (abfd, sym)))); | |
603 | ||
604 | if (keep && is_specified_symbol (name, strip_specific_list)) | |
605 | keep = 0; | |
606 | if (!keep && is_specified_symbol (name, keep_specific_list)) | |
607 | keep = 1; | |
608 | if (keep && is_strip_section (abfd, bfd_get_section (sym))) | |
609 | keep = 0; | |
610 | ||
611 | if (keep && (flags & BSF_GLOBAL) != 0 | |
612 | && (weaken || is_specified_symbol (name, weaken_specific_list))) | |
613 | { | |
614 | sym->flags &=~ BSF_GLOBAL; | |
615 | sym->flags |= BSF_WEAK; | |
616 | } | |
617 | if (keep && (flags & (BSF_GLOBAL | BSF_WEAK)) | |
618 | && is_specified_symbol (name, localize_specific_list)) | |
619 | { | |
620 | sym->flags &= ~(BSF_GLOBAL | BSF_WEAK); | |
621 | sym->flags |= BSF_LOCAL; | |
622 | } | |
623 | ||
624 | if (keep) | |
625 | to[dst_count++] = sym; | |
626 | } | |
627 | ||
628 | to[dst_count] = NULL; | |
629 | ||
630 | return dst_count; | |
631 | } | |
632 | ||
633 | /* Keep only every `copy_byte'th byte in MEMHUNK, which is *SIZE bytes long. | |
634 | Adjust *SIZE. */ | |
635 | ||
636 | static void | |
637 | filter_bytes (memhunk, size) | |
638 | char *memhunk; | |
639 | bfd_size_type *size; | |
640 | { | |
641 | char *from = memhunk + copy_byte, *to = memhunk, *end = memhunk + *size; | |
642 | ||
643 | for (; from < end; from += interleave) | |
644 | *to++ = *from; | |
b4c96d0d | 645 | if (*size % interleave > (bfd_size_type) copy_byte) |
252b5132 RH |
646 | *size = (*size / interleave) + 1; |
647 | else | |
648 | *size /= interleave; | |
649 | } | |
650 | ||
651 | /* Copy object file IBFD onto OBFD. */ | |
652 | ||
653 | static void | |
654 | copy_object (ibfd, obfd) | |
655 | bfd *ibfd; | |
656 | bfd *obfd; | |
657 | { | |
658 | bfd_vma start; | |
659 | long symcount; | |
660 | asection **osections = NULL; | |
661 | bfd_size_type *gaps = NULL; | |
662 | bfd_size_type max_gap = 0; | |
663 | long symsize; | |
664 | PTR dhandle; | |
665 | ||
666 | ||
667 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) | |
668 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
669 | ||
670 | if (verbose) | |
671 | printf (_("copy from %s(%s) to %s(%s)\n"), | |
672 | bfd_get_filename (ibfd), bfd_get_target (ibfd), | |
673 | bfd_get_filename (obfd), bfd_get_target (obfd)); | |
674 | ||
675 | if (set_start_set) | |
676 | start = set_start; | |
677 | else | |
678 | start = bfd_get_start_address (ibfd); | |
679 | start += change_start; | |
680 | ||
681 | if (!bfd_set_start_address (obfd, start) | |
682 | || !bfd_set_file_flags (obfd, | |
683 | (bfd_get_file_flags (ibfd) | |
684 | & bfd_applicable_file_flags (obfd)))) | |
685 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
686 | ||
687 | /* Copy architecture of input file to output file */ | |
688 | if (!bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
689 | bfd_get_mach (ibfd))) | |
690 | non_fatal (_("Warning: Output file cannot represent architecture %s"), | |
691 | bfd_printable_arch_mach (bfd_get_arch (ibfd), | |
692 | bfd_get_mach (ibfd))); | |
693 | ||
694 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) | |
695 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
696 | ||
697 | if (isympp) | |
698 | free (isympp); | |
699 | ||
700 | if (osympp != isympp) | |
701 | free (osympp); | |
702 | ||
703 | /* BFD mandates that all output sections be created and sizes set before | |
704 | any output is done. Thus, we traverse all sections multiple times. */ | |
705 | bfd_map_over_sections (ibfd, setup_section, (void *) obfd); | |
706 | ||
707 | if (add_sections != NULL) | |
708 | { | |
709 | struct section_add *padd; | |
710 | struct section_list *pset; | |
711 | ||
712 | for (padd = add_sections; padd != NULL; padd = padd->next) | |
713 | { | |
714 | padd->section = bfd_make_section (obfd, padd->name); | |
715 | if (padd->section == NULL) | |
716 | { | |
717 | non_fatal (_("can't create section `%s': %s"), | |
718 | padd->name, bfd_errmsg (bfd_get_error ())); | |
719 | status = 1; | |
720 | return; | |
721 | } | |
722 | else | |
723 | { | |
724 | flagword flags; | |
725 | ||
726 | if (! bfd_set_section_size (obfd, padd->section, padd->size)) | |
727 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
728 | ||
729 | pset = find_section_list (padd->name, false); | |
730 | if (pset != NULL) | |
731 | pset->used = true; | |
732 | ||
733 | if (pset != NULL && pset->set_flags) | |
734 | flags = pset->flags | SEC_HAS_CONTENTS; | |
735 | else | |
736 | flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA; | |
737 | ||
738 | if (! bfd_set_section_flags (obfd, padd->section, flags)) | |
739 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
740 | ||
741 | if (pset != NULL) | |
742 | { | |
743 | if (pset->change_vma != CHANGE_IGNORE) | |
744 | if (! bfd_set_section_vma (obfd, padd->section, pset->vma_val)) | |
745 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
746 | ||
747 | if (pset->change_lma != CHANGE_IGNORE) | |
748 | { | |
749 | padd->section->lma = pset->lma_val; | |
750 | ||
751 | if (! bfd_set_section_alignment | |
752 | (obfd, padd->section, | |
753 | bfd_section_alignment (obfd, padd->section))) | |
754 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
755 | } | |
756 | } | |
757 | } | |
758 | } | |
759 | } | |
760 | ||
761 | if (gap_fill_set || pad_to_set) | |
762 | { | |
763 | asection **set; | |
764 | unsigned int c, i; | |
765 | ||
766 | /* We must fill in gaps between the sections and/or we must pad | |
767 | the last section to a specified address. We do this by | |
768 | grabbing a list of the sections, sorting them by VMA, and | |
769 | increasing the section sizes as required to fill the gaps. | |
770 | We write out the gap contents below. */ | |
771 | ||
772 | c = bfd_count_sections (obfd); | |
773 | osections = (asection **) xmalloc (c * sizeof (asection *)); | |
774 | set = osections; | |
775 | bfd_map_over_sections (obfd, get_sections, (void *) &set); | |
776 | ||
777 | qsort (osections, c, sizeof (asection *), compare_section_lma); | |
778 | ||
779 | gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type)); | |
780 | memset (gaps, 0, c * sizeof (bfd_size_type)); | |
781 | ||
782 | if (gap_fill_set) | |
783 | { | |
784 | for (i = 0; i < c - 1; i++) | |
785 | { | |
786 | flagword flags; | |
787 | bfd_size_type size; | |
788 | bfd_vma gap_start, gap_stop; | |
789 | ||
790 | flags = bfd_get_section_flags (obfd, osections[i]); | |
791 | if ((flags & SEC_HAS_CONTENTS) == 0 | |
792 | || (flags & SEC_LOAD) == 0) | |
793 | continue; | |
794 | ||
795 | size = bfd_section_size (obfd, osections[i]); | |
796 | gap_start = bfd_section_lma (obfd, osections[i]) + size; | |
797 | gap_stop = bfd_section_lma (obfd, osections[i + 1]); | |
798 | if (gap_start < gap_stop) | |
799 | { | |
800 | if (! bfd_set_section_size (obfd, osections[i], | |
801 | size + (gap_stop - gap_start))) | |
802 | { | |
803 | non_fatal (_("Can't fill gap after %s: %s"), | |
804 | bfd_get_section_name (obfd, osections[i]), | |
805 | bfd_errmsg (bfd_get_error ())); | |
806 | status = 1; | |
807 | break; | |
808 | } | |
809 | gaps[i] = gap_stop - gap_start; | |
810 | if (max_gap < gap_stop - gap_start) | |
811 | max_gap = gap_stop - gap_start; | |
812 | } | |
813 | } | |
814 | } | |
815 | ||
816 | if (pad_to_set) | |
817 | { | |
818 | bfd_vma lma; | |
819 | bfd_size_type size; | |
820 | ||
821 | lma = bfd_section_lma (obfd, osections[c - 1]); | |
822 | size = bfd_section_size (obfd, osections[c - 1]); | |
823 | if (lma + size < pad_to) | |
824 | { | |
825 | if (! bfd_set_section_size (obfd, osections[c - 1], | |
826 | pad_to - lma)) | |
827 | { | |
828 | non_fatal (_("Can't add padding to %s: %s"), | |
829 | bfd_get_section_name (obfd, osections[c - 1]), | |
830 | bfd_errmsg (bfd_get_error ())); | |
831 | status = 1; | |
832 | } | |
833 | else | |
834 | { | |
835 | gaps[c - 1] = pad_to - (lma + size); | |
836 | if (max_gap < pad_to - (lma + size)) | |
837 | max_gap = pad_to - (lma + size); | |
838 | } | |
839 | } | |
840 | } | |
841 | } | |
842 | ||
843 | /* Symbol filtering must happen after the output sections have | |
844 | been created, but before their contents are set. */ | |
845 | dhandle = NULL; | |
846 | symsize = bfd_get_symtab_upper_bound (ibfd); | |
847 | if (symsize < 0) | |
848 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
849 | ||
850 | osympp = isympp = (asymbol **) xmalloc (symsize); | |
851 | symcount = bfd_canonicalize_symtab (ibfd, isympp); | |
852 | if (symcount < 0) | |
853 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
854 | ||
855 | if (convert_debugging) | |
856 | dhandle = read_debugging_info (ibfd, isympp, symcount); | |
857 | ||
858 | if (strip_symbols == STRIP_DEBUG | |
859 | || strip_symbols == STRIP_ALL | |
860 | || strip_symbols == STRIP_UNNEEDED | |
861 | || discard_locals != LOCALS_UNDEF | |
862 | || strip_specific_list != NULL | |
863 | || keep_specific_list != NULL | |
864 | || localize_specific_list != NULL | |
865 | || weaken_specific_list != NULL | |
866 | || sections_removed | |
f91ea849 | 867 | || sections_copied |
252b5132 RH |
868 | || convert_debugging |
869 | || change_leading_char | |
870 | || remove_leading_char | |
871 | || weaken) | |
872 | { | |
873 | /* Mark symbols used in output relocations so that they | |
874 | are kept, even if they are local labels or static symbols. | |
875 | ||
876 | Note we iterate over the input sections examining their | |
877 | relocations since the relocations for the output sections | |
878 | haven't been set yet. mark_symbols_used_in_relocations will | |
879 | ignore input sections which have no corresponding output | |
880 | section. */ | |
881 | if (strip_symbols != STRIP_ALL) | |
882 | bfd_map_over_sections (ibfd, | |
883 | mark_symbols_used_in_relocations, | |
884 | (PTR)isympp); | |
885 | osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *)); | |
886 | symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount); | |
887 | } | |
888 | ||
889 | if (convert_debugging && dhandle != NULL) | |
890 | { | |
891 | if (! write_debugging_info (obfd, dhandle, &symcount, &osympp)) | |
892 | { | |
893 | status = 1; | |
894 | return; | |
895 | } | |
896 | } | |
897 | ||
898 | bfd_set_symtab (obfd, osympp, symcount); | |
899 | ||
900 | /* This has to happen after the symbol table has been set. */ | |
901 | bfd_map_over_sections (ibfd, copy_section, (void *) obfd); | |
902 | ||
903 | if (add_sections != NULL) | |
904 | { | |
905 | struct section_add *padd; | |
906 | ||
907 | for (padd = add_sections; padd != NULL; padd = padd->next) | |
908 | { | |
909 | if (! bfd_set_section_contents (obfd, padd->section, | |
910 | (PTR) padd->contents, | |
911 | (file_ptr) 0, | |
912 | (bfd_size_type) padd->size)) | |
913 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
914 | } | |
915 | } | |
916 | ||
917 | if (gap_fill_set || pad_to_set) | |
918 | { | |
919 | bfd_byte *buf; | |
920 | int c, i; | |
921 | ||
922 | /* Fill in the gaps. */ | |
923 | ||
924 | if (max_gap > 8192) | |
925 | max_gap = 8192; | |
926 | buf = (bfd_byte *) xmalloc (max_gap); | |
927 | memset (buf, gap_fill, (size_t) max_gap); | |
928 | ||
929 | c = bfd_count_sections (obfd); | |
930 | for (i = 0; i < c; i++) | |
931 | { | |
932 | if (gaps[i] != 0) | |
933 | { | |
934 | bfd_size_type left; | |
935 | file_ptr off; | |
936 | ||
937 | left = gaps[i]; | |
938 | off = bfd_section_size (obfd, osections[i]) - left; | |
939 | while (left > 0) | |
940 | { | |
941 | bfd_size_type now; | |
942 | ||
943 | if (left > 8192) | |
944 | now = 8192; | |
945 | else | |
946 | now = left; | |
947 | ||
948 | if (! bfd_set_section_contents (obfd, osections[i], buf, | |
949 | off, now)) | |
950 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
951 | ||
952 | left -= now; | |
953 | off += now; | |
954 | } | |
955 | } | |
956 | } | |
957 | } | |
958 | ||
959 | /* Allow the BFD backend to copy any private data it understands | |
960 | from the input BFD to the output BFD. This is done last to | |
961 | permit the routine to look at the filtered symbol table, which is | |
962 | important for the ECOFF code at least. */ | |
963 | if (!bfd_copy_private_bfd_data (ibfd, obfd)) | |
964 | { | |
965 | non_fatal (_("%s: error copying private BFD data: %s"), | |
966 | bfd_get_filename (obfd), | |
967 | bfd_errmsg (bfd_get_error ())); | |
968 | status = 1; | |
969 | return; | |
970 | } | |
971 | } | |
972 | ||
973 | /* Read each archive element in turn from IBFD, copy the | |
974 | contents to temp file, and keep the temp file handle. */ | |
975 | ||
976 | static void | |
977 | copy_archive (ibfd, obfd, output_target) | |
978 | bfd *ibfd; | |
979 | bfd *obfd; | |
980 | const char *output_target; | |
981 | { | |
982 | struct name_list | |
983 | { | |
984 | struct name_list *next; | |
985 | char *name; | |
986 | bfd *obfd; | |
987 | } *list, *l; | |
988 | bfd **ptr = &obfd->archive_head; | |
989 | bfd *this_element; | |
990 | char *dir = make_tempname (bfd_get_filename (obfd)); | |
991 | ||
992 | /* Make a temp directory to hold the contents. */ | |
993 | #if defined (_WIN32) && !defined (__CYGWIN32__) | |
994 | if (mkdir (dir) != 0) | |
995 | #else | |
996 | if (mkdir (dir, 0700) != 0) | |
997 | #endif | |
998 | { | |
999 | fatal (_("cannot mkdir %s for archive copying (error: %s)"), | |
1000 | dir, strerror (errno)); | |
1001 | } | |
1002 | obfd->has_armap = ibfd->has_armap; | |
1003 | ||
1004 | list = NULL; | |
1005 | ||
1006 | this_element = bfd_openr_next_archived_file (ibfd, NULL); | |
1007 | while (!status && this_element != (bfd *) NULL) | |
1008 | { | |
1009 | /* Create an output file for this member. */ | |
1010 | char *output_name = concat (dir, "/", bfd_get_filename (this_element), | |
1011 | (char *) NULL); | |
1012 | bfd *output_bfd = bfd_openw (output_name, output_target); | |
1013 | bfd *last_element; | |
8066d1a2 AS |
1014 | struct stat buf; |
1015 | int stat_status = 0; | |
1016 | ||
1017 | if (preserve_dates) | |
1018 | { | |
1019 | stat_status = bfd_stat_arch_elt (this_element, &buf); | |
1020 | if (stat_status != 0) | |
1021 | non_fatal (_("internal stat error on %s"), | |
1022 | bfd_get_filename (this_element)); | |
1023 | } | |
252b5132 RH |
1024 | |
1025 | l = (struct name_list *) xmalloc (sizeof (struct name_list)); | |
1026 | l->name = output_name; | |
1027 | l->next = list; | |
1028 | list = l; | |
1029 | ||
1030 | if (output_bfd == (bfd *) NULL) | |
1031 | RETURN_NONFATAL (output_name); | |
1032 | ||
1033 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) | |
1034 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
1035 | ||
1036 | if (bfd_check_format (this_element, bfd_object) == true) | |
1037 | copy_object (this_element, output_bfd); | |
1038 | ||
1039 | if (!bfd_close (output_bfd)) | |
1040 | { | |
1041 | bfd_nonfatal (bfd_get_filename (output_bfd)); | |
1042 | /* Error in new object file. Don't change archive. */ | |
1043 | status = 1; | |
1044 | } | |
1045 | ||
8066d1a2 AS |
1046 | if (preserve_dates && stat_status == 0) |
1047 | set_times (output_name, &buf); | |
1048 | ||
252b5132 RH |
1049 | /* Open the newly output file and attach to our list. */ |
1050 | output_bfd = bfd_openr (output_name, output_target); | |
1051 | ||
1052 | l->obfd = output_bfd; | |
1053 | ||
1054 | *ptr = output_bfd; | |
1055 | ptr = &output_bfd->next; | |
1056 | ||
1057 | last_element = this_element; | |
1058 | ||
1059 | this_element = bfd_openr_next_archived_file (ibfd, last_element); | |
1060 | ||
1061 | bfd_close (last_element); | |
1062 | } | |
1063 | *ptr = (bfd *) NULL; | |
1064 | ||
1065 | if (!bfd_close (obfd)) | |
1066 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
1067 | ||
1068 | if (!bfd_close (ibfd)) | |
1069 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
1070 | ||
1071 | /* Delete all the files that we opened. */ | |
1072 | for (l = list; l != NULL; l = l->next) | |
1073 | { | |
1074 | bfd_close (l->obfd); | |
1075 | unlink (l->name); | |
1076 | } | |
1077 | rmdir (dir); | |
1078 | } | |
1079 | ||
1080 | /* The top-level control. */ | |
1081 | ||
1082 | static void | |
1083 | copy_file (input_filename, output_filename, input_target, output_target) | |
1084 | const char *input_filename; | |
1085 | const char *output_filename; | |
1086 | const char *input_target; | |
1087 | const char *output_target; | |
1088 | { | |
1089 | bfd *ibfd; | |
1090 | char **matching; | |
1091 | ||
1092 | /* To allow us to do "strip *" without dying on the first | |
1093 | non-object file, failures are nonfatal. */ | |
1094 | ||
1095 | ibfd = bfd_openr (input_filename, input_target); | |
1096 | if (ibfd == NULL) | |
1097 | RETURN_NONFATAL (input_filename); | |
1098 | ||
1099 | if (bfd_check_format (ibfd, bfd_archive)) | |
1100 | { | |
1101 | bfd *obfd; | |
1102 | ||
1103 | /* bfd_get_target does not return the correct value until | |
1104 | bfd_check_format succeeds. */ | |
1105 | if (output_target == NULL) | |
1106 | output_target = bfd_get_target (ibfd); | |
1107 | ||
1108 | obfd = bfd_openw (output_filename, output_target); | |
1109 | if (obfd == NULL) | |
1110 | RETURN_NONFATAL (output_filename); | |
1111 | ||
1112 | copy_archive (ibfd, obfd, output_target); | |
1113 | } | |
1114 | else if (bfd_check_format_matches (ibfd, bfd_object, &matching)) | |
1115 | { | |
1116 | bfd *obfd; | |
1117 | ||
1118 | /* bfd_get_target does not return the correct value until | |
1119 | bfd_check_format succeeds. */ | |
1120 | if (output_target == NULL) | |
1121 | output_target = bfd_get_target (ibfd); | |
1122 | ||
1123 | obfd = bfd_openw (output_filename, output_target); | |
1124 | if (obfd == NULL) | |
1125 | RETURN_NONFATAL (output_filename); | |
1126 | ||
1127 | copy_object (ibfd, obfd); | |
1128 | ||
1129 | if (!bfd_close (obfd)) | |
1130 | RETURN_NONFATAL (output_filename); | |
1131 | ||
1132 | if (!bfd_close (ibfd)) | |
1133 | RETURN_NONFATAL (input_filename); | |
1134 | } | |
1135 | else | |
1136 | { | |
1137 | bfd_nonfatal (input_filename); | |
1138 | ||
1139 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) | |
1140 | { | |
1141 | list_matching_formats (matching); | |
1142 | free (matching); | |
1143 | } | |
1144 | ||
1145 | status = 1; | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | /* Create a section in OBFD with the same name and attributes | |
1150 | as ISECTION in IBFD. */ | |
1151 | ||
1152 | static void | |
1153 | setup_section (ibfd, isection, obfdarg) | |
1154 | bfd *ibfd; | |
1155 | sec_ptr isection; | |
1156 | PTR obfdarg; | |
1157 | { | |
1158 | bfd *obfd = (bfd *) obfdarg; | |
1159 | struct section_list *p; | |
1160 | sec_ptr osection; | |
1161 | bfd_size_type size; | |
1162 | bfd_vma vma; | |
1163 | bfd_vma lma; | |
1164 | flagword flags; | |
1165 | char *err; | |
1166 | ||
1167 | if ((bfd_get_section_flags (ibfd, isection) & SEC_DEBUGGING) != 0 | |
1168 | && (strip_symbols == STRIP_DEBUG | |
1169 | || strip_symbols == STRIP_UNNEEDED | |
1170 | || strip_symbols == STRIP_ALL | |
1171 | || discard_locals == LOCALS_ALL | |
1172 | || convert_debugging)) | |
1173 | return; | |
1174 | ||
1175 | p = find_section_list (bfd_section_name (ibfd, isection), false); | |
1176 | if (p != NULL) | |
1177 | p->used = true; | |
1178 | ||
f91ea849 ILT |
1179 | if (sections_removed && p != NULL && p->remove) |
1180 | return; | |
1181 | if (sections_copied && (p == NULL || ! p->copy)) | |
252b5132 RH |
1182 | return; |
1183 | ||
1184 | osection = bfd_make_section_anyway (obfd, bfd_section_name (ibfd, isection)); | |
1185 | ||
1186 | if (osection == NULL) | |
1187 | { | |
1188 | err = "making"; | |
1189 | goto loser; | |
1190 | } | |
1191 | ||
1192 | size = bfd_section_size (ibfd, isection); | |
1193 | if (copy_byte >= 0) | |
1194 | size = (size + interleave - 1) / interleave; | |
1195 | if (! bfd_set_section_size (obfd, osection, size)) | |
1196 | { | |
1197 | err = "size"; | |
1198 | goto loser; | |
1199 | } | |
1200 | ||
1201 | vma = bfd_section_vma (ibfd, isection); | |
1202 | if (p != NULL && p->change_vma == CHANGE_MODIFY) | |
1203 | vma += p->vma_val; | |
1204 | else if (p != NULL && p->change_vma == CHANGE_SET) | |
1205 | vma = p->vma_val; | |
1206 | else | |
1207 | vma += change_section_address; | |
1208 | ||
1209 | if (! bfd_set_section_vma (obfd, osection, vma)) | |
1210 | { | |
1211 | err = "vma"; | |
1212 | goto loser; | |
1213 | } | |
1214 | ||
1215 | lma = isection->lma; | |
1216 | if ((p != NULL) && p->change_lma != CHANGE_IGNORE) | |
1217 | { | |
1218 | if (p->change_lma == CHANGE_MODIFY) | |
1219 | lma += p->lma_val; | |
1220 | else if (p->change_lma == CHANGE_SET) | |
1221 | lma = p->lma_val; | |
1222 | else | |
1223 | abort (); | |
1224 | } | |
1225 | else | |
1226 | lma += change_section_address; | |
1227 | ||
1228 | osection->lma = lma; | |
1229 | ||
1230 | /* FIXME: This is probably not enough. If we change the LMA we | |
1231 | may have to recompute the header for the file as well. */ | |
1232 | if (bfd_set_section_alignment (obfd, | |
1233 | osection, | |
1234 | bfd_section_alignment (ibfd, isection)) | |
1235 | == false) | |
1236 | { | |
1237 | err = "alignment"; | |
1238 | goto loser; | |
1239 | } | |
1240 | ||
1241 | flags = bfd_get_section_flags (ibfd, isection); | |
1242 | if (p != NULL && p->set_flags) | |
1243 | flags = p->flags | (flags & SEC_HAS_CONTENTS); | |
1244 | if (!bfd_set_section_flags (obfd, osection, flags)) | |
1245 | { | |
1246 | err = "flags"; | |
1247 | goto loser; | |
1248 | } | |
1249 | ||
1250 | /* This used to be mangle_section; we do here to avoid using | |
1251 | bfd_get_section_by_name since some formats allow multiple | |
1252 | sections with the same name. */ | |
1253 | isection->output_section = osection; | |
1254 | isection->output_offset = 0; | |
1255 | ||
1256 | /* Allow the BFD backend to copy any private data it understands | |
1257 | from the input section to the output section. */ | |
1258 | if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection)) | |
1259 | { | |
1260 | err = "private data"; | |
1261 | goto loser; | |
1262 | } | |
1263 | ||
1264 | /* All went well */ | |
1265 | return; | |
1266 | ||
1267 | loser: | |
1268 | non_fatal (_("%s: section `%s': error in %s: %s"), | |
1269 | bfd_get_filename (ibfd), | |
1270 | bfd_section_name (ibfd, isection), | |
1271 | err, bfd_errmsg (bfd_get_error ())); | |
1272 | status = 1; | |
1273 | } | |
1274 | ||
1275 | /* Copy the data of input section ISECTION of IBFD | |
1276 | to an output section with the same name in OBFD. | |
1277 | If stripping then don't copy any relocation info. */ | |
1278 | ||
1279 | static void | |
1280 | copy_section (ibfd, isection, obfdarg) | |
1281 | bfd *ibfd; | |
1282 | sec_ptr isection; | |
1283 | PTR obfdarg; | |
1284 | { | |
1285 | bfd *obfd = (bfd *) obfdarg; | |
1286 | struct section_list *p; | |
1287 | arelent **relpp; | |
1288 | long relcount; | |
1289 | sec_ptr osection; | |
1290 | bfd_size_type size; | |
1291 | long relsize; | |
1292 | ||
1293 | /* If we have already failed earlier on, do not keep on generating | |
1294 | complaints now. */ | |
1295 | if (status != 0) | |
1296 | return; | |
1297 | ||
1298 | if ((bfd_get_section_flags (ibfd, isection) & SEC_DEBUGGING) != 0 | |
1299 | && (strip_symbols == STRIP_DEBUG | |
1300 | || strip_symbols == STRIP_UNNEEDED | |
1301 | || strip_symbols == STRIP_ALL | |
1302 | || discard_locals == LOCALS_ALL | |
1303 | || convert_debugging)) | |
1304 | { | |
1305 | return; | |
1306 | } | |
1307 | ||
1308 | p = find_section_list (bfd_section_name (ibfd, isection), false); | |
1309 | ||
f91ea849 ILT |
1310 | if (sections_removed && p != NULL && p->remove) |
1311 | return; | |
1312 | if (sections_copied && (p == NULL || ! p->copy)) | |
252b5132 RH |
1313 | return; |
1314 | ||
1315 | osection = isection->output_section; | |
1316 | size = bfd_get_section_size_before_reloc (isection); | |
1317 | ||
1318 | if (size == 0 || osection == 0) | |
1319 | return; | |
1320 | ||
1321 | ||
1322 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); | |
1323 | if (relsize < 0) | |
1324 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
1325 | ||
1326 | if (relsize == 0) | |
1327 | bfd_set_reloc (obfd, osection, (arelent **) NULL, 0); | |
1328 | else | |
1329 | { | |
1330 | relpp = (arelent **) xmalloc (relsize); | |
1331 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp); | |
1332 | if (relcount < 0) | |
1333 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
1334 | ||
1335 | if (strip_symbols == STRIP_ALL) | |
1336 | { | |
1337 | /* Remove relocations which are not in | |
1338 | keep_strip_specific_list. */ | |
1339 | arelent **temp_relpp; | |
1340 | long temp_relcount = 0; | |
1341 | long i; | |
1342 | ||
1343 | temp_relpp = (arelent **) xmalloc (relsize); | |
1344 | for (i = 0; i < relcount; i++) | |
1345 | if (is_specified_symbol | |
1346 | (bfd_asymbol_name (*relpp [i]->sym_ptr_ptr), | |
1347 | keep_specific_list)) | |
1348 | temp_relpp [temp_relcount++] = relpp [i]; | |
1349 | relcount = temp_relcount; | |
1350 | free (relpp); | |
1351 | relpp = temp_relpp; | |
1352 | } | |
1353 | bfd_set_reloc (obfd, osection, | |
1354 | (relcount == 0 ? (arelent **) NULL : relpp), relcount); | |
1355 | } | |
1356 | ||
1357 | isection->_cooked_size = isection->_raw_size; | |
1358 | isection->reloc_done = true; | |
1359 | ||
1360 | if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS) | |
1361 | { | |
1362 | PTR memhunk = (PTR) xmalloc ((unsigned) size); | |
1363 | ||
1364 | if (!bfd_get_section_contents (ibfd, isection, memhunk, (file_ptr) 0, | |
1365 | size)) | |
1366 | RETURN_NONFATAL (bfd_get_filename (ibfd)); | |
1367 | ||
1368 | if (copy_byte >= 0) | |
1369 | filter_bytes (memhunk, &size); | |
1370 | ||
1371 | if (!bfd_set_section_contents (obfd, osection, memhunk, (file_ptr) 0, | |
1372 | size)) | |
1373 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
1374 | ||
1375 | free (memhunk); | |
1376 | } | |
1377 | else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0) | |
1378 | { | |
1379 | PTR memhunk = (PTR) xmalloc ((unsigned) size); | |
1380 | ||
1381 | /* We don't permit the user to turn off the SEC_HAS_CONTENTS | |
1382 | flag--they can just remove the section entirely and add it | |
1383 | back again. However, we do permit them to turn on the | |
1384 | SEC_HAS_CONTENTS flag, and take it to mean that the section | |
1385 | contents should be zeroed out. */ | |
1386 | ||
1387 | memset (memhunk, 0, size); | |
1388 | if (! bfd_set_section_contents (obfd, osection, memhunk, (file_ptr) 0, | |
1389 | size)) | |
1390 | RETURN_NONFATAL (bfd_get_filename (obfd)); | |
1391 | free (memhunk); | |
1392 | } | |
1393 | } | |
1394 | ||
1395 | /* Get all the sections. This is used when --gap-fill or --pad-to is | |
1396 | used. */ | |
1397 | ||
1398 | static void | |
1399 | get_sections (obfd, osection, secppparg) | |
b4c96d0d | 1400 | bfd *obfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1401 | asection *osection; |
1402 | PTR secppparg; | |
1403 | { | |
1404 | asection ***secppp = (asection ***) secppparg; | |
1405 | ||
1406 | **secppp = osection; | |
1407 | ++(*secppp); | |
1408 | } | |
1409 | ||
1410 | /* Sort sections by VMA. This is called via qsort, and is used when | |
1411 | --gap-fill or --pad-to is used. We force non loadable or empty | |
1412 | sections to the front, where they are easier to ignore. */ | |
1413 | ||
1414 | static int | |
1415 | compare_section_lma (arg1, arg2) | |
1416 | const PTR arg1; | |
1417 | const PTR arg2; | |
1418 | { | |
1419 | const asection **sec1 = (const asection **) arg1; | |
1420 | const asection **sec2 = (const asection **) arg2; | |
1421 | flagword flags1, flags2; | |
1422 | ||
1423 | /* Sort non loadable sections to the front. */ | |
1424 | flags1 = (*sec1)->flags; | |
1425 | flags2 = (*sec2)->flags; | |
1426 | if ((flags1 & SEC_HAS_CONTENTS) == 0 | |
1427 | || (flags1 & SEC_LOAD) == 0) | |
1428 | { | |
1429 | if ((flags2 & SEC_HAS_CONTENTS) != 0 | |
1430 | && (flags2 & SEC_LOAD) != 0) | |
1431 | return -1; | |
1432 | } | |
1433 | else | |
1434 | { | |
1435 | if ((flags2 & SEC_HAS_CONTENTS) == 0 | |
1436 | || (flags2 & SEC_LOAD) == 0) | |
1437 | return 1; | |
1438 | } | |
1439 | ||
1440 | /* Sort sections by LMA. */ | |
1441 | if ((*sec1)->lma > (*sec2)->lma) | |
1442 | return 1; | |
1443 | else if ((*sec1)->lma < (*sec2)->lma) | |
1444 | return -1; | |
1445 | ||
1446 | /* Sort sections with the same LMA by size. */ | |
1447 | if ((*sec1)->_raw_size > (*sec2)->_raw_size) | |
1448 | return 1; | |
1449 | else if ((*sec1)->_raw_size < (*sec2)->_raw_size) | |
1450 | return -1; | |
1451 | ||
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | /* Mark all the symbols which will be used in output relocations with | |
1456 | the BSF_KEEP flag so that those symbols will not be stripped. | |
1457 | ||
1458 | Ignore relocations which will not appear in the output file. */ | |
1459 | ||
1460 | static void | |
1461 | mark_symbols_used_in_relocations (ibfd, isection, symbolsarg) | |
1462 | bfd *ibfd; | |
1463 | sec_ptr isection; | |
1464 | PTR symbolsarg; | |
1465 | { | |
1466 | asymbol **symbols = (asymbol **) symbolsarg; | |
1467 | long relsize; | |
1468 | arelent **relpp; | |
1469 | long relcount, i; | |
1470 | ||
1471 | /* Ignore an input section with no corresponding output section. */ | |
1472 | if (isection->output_section == NULL) | |
1473 | return; | |
1474 | ||
1475 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); | |
1476 | if (relsize < 0) | |
1477 | bfd_fatal (bfd_get_filename (ibfd)); | |
1478 | ||
1479 | if (relsize == 0) | |
1480 | return; | |
1481 | ||
1482 | relpp = (arelent **) xmalloc (relsize); | |
1483 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols); | |
1484 | if (relcount < 0) | |
1485 | bfd_fatal (bfd_get_filename (ibfd)); | |
1486 | ||
1487 | /* Examine each symbol used in a relocation. If it's not one of the | |
1488 | special bfd section symbols, then mark it with BSF_KEEP. */ | |
1489 | for (i = 0; i < relcount; i++) | |
1490 | { | |
1491 | if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol | |
1492 | && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol | |
1493 | && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol) | |
1494 | (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP; | |
1495 | } | |
1496 | ||
1497 | if (relpp != NULL) | |
1498 | free (relpp); | |
1499 | } | |
1500 | ||
1501 | /* Write out debugging information. */ | |
1502 | ||
1503 | static boolean | |
1504 | write_debugging_info (obfd, dhandle, symcountp, symppp) | |
1505 | bfd *obfd; | |
1506 | PTR dhandle; | |
b4c96d0d ILT |
1507 | long *symcountp ATTRIBUTE_UNUSED; |
1508 | asymbol ***symppp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1509 | { |
1510 | if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour) | |
1511 | return write_ieee_debugging_info (obfd, dhandle); | |
1512 | ||
1513 | if (bfd_get_flavour (obfd) == bfd_target_coff_flavour | |
1514 | || bfd_get_flavour (obfd) == bfd_target_elf_flavour) | |
1515 | { | |
1516 | bfd_byte *syms, *strings; | |
1517 | bfd_size_type symsize, stringsize; | |
1518 | asection *stabsec, *stabstrsec; | |
1519 | ||
1520 | if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms, | |
1521 | &symsize, &strings, | |
1522 | &stringsize)) | |
1523 | return false; | |
1524 | ||
1525 | stabsec = bfd_make_section (obfd, ".stab"); | |
1526 | stabstrsec = bfd_make_section (obfd, ".stabstr"); | |
1527 | if (stabsec == NULL | |
1528 | || stabstrsec == NULL | |
1529 | || ! bfd_set_section_size (obfd, stabsec, symsize) | |
1530 | || ! bfd_set_section_size (obfd, stabstrsec, stringsize) | |
1531 | || ! bfd_set_section_alignment (obfd, stabsec, 2) | |
1532 | || ! bfd_set_section_alignment (obfd, stabstrsec, 0) | |
1533 | || ! bfd_set_section_flags (obfd, stabsec, | |
1534 | (SEC_HAS_CONTENTS | |
1535 | | SEC_READONLY | |
1536 | | SEC_DEBUGGING)) | |
1537 | || ! bfd_set_section_flags (obfd, stabstrsec, | |
1538 | (SEC_HAS_CONTENTS | |
1539 | | SEC_READONLY | |
1540 | | SEC_DEBUGGING))) | |
1541 | { | |
1542 | non_fatal (_("%s: can't create debugging section: %s"), | |
1543 | bfd_get_filename (obfd), | |
1544 | bfd_errmsg (bfd_get_error ())); | |
1545 | return false; | |
1546 | } | |
1547 | ||
1548 | /* We can get away with setting the section contents now because | |
1549 | the next thing the caller is going to do is copy over the | |
1550 | real sections. We may someday have to split the contents | |
1551 | setting out of this function. */ | |
1552 | if (! bfd_set_section_contents (obfd, stabsec, syms, (file_ptr) 0, | |
1553 | symsize) | |
1554 | || ! bfd_set_section_contents (obfd, stabstrsec, strings, | |
1555 | (file_ptr) 0, stringsize)) | |
1556 | { | |
1557 | non_fatal (_("%s: can't set debugging section contents: %s"), | |
1558 | bfd_get_filename (obfd), | |
1559 | bfd_errmsg (bfd_get_error ())); | |
1560 | return false; | |
1561 | } | |
1562 | ||
1563 | return true; | |
1564 | } | |
1565 | ||
1566 | non_fatal (_("%s: don't know how to write debugging information for %s"), | |
1567 | bfd_get_filename (obfd), bfd_get_target (obfd)); | |
1568 | return false; | |
1569 | } | |
1570 | ||
1571 | static int | |
1572 | strip_main (argc, argv) | |
1573 | int argc; | |
1574 | char *argv[]; | |
1575 | { | |
1576 | char *input_target = NULL, *output_target = NULL; | |
1577 | boolean show_version = false; | |
1578 | int c, i; | |
1579 | struct section_list *p; | |
1580 | char *output_file = NULL; | |
1581 | ||
1582 | while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpgxXVv", | |
1583 | strip_options, (int *) 0)) != EOF) | |
1584 | { | |
1585 | switch (c) | |
1586 | { | |
1587 | case 'I': | |
1588 | input_target = optarg; | |
1589 | break; | |
1590 | case 'O': | |
1591 | output_target = optarg; | |
1592 | break; | |
1593 | case 'F': | |
1594 | input_target = output_target = optarg; | |
1595 | break; | |
1596 | case 'R': | |
1597 | p = find_section_list (optarg, true); | |
1598 | p->remove = true; | |
1599 | sections_removed = true; | |
1600 | break; | |
1601 | case 's': | |
1602 | strip_symbols = STRIP_ALL; | |
1603 | break; | |
1604 | case 'S': | |
1605 | case 'g': | |
1606 | strip_symbols = STRIP_DEBUG; | |
1607 | break; | |
1608 | case OPTION_STRIP_UNNEEDED: | |
1609 | strip_symbols = STRIP_UNNEEDED; | |
1610 | break; | |
1611 | case 'K': | |
1612 | add_specific_symbol (optarg, &keep_specific_list); | |
1613 | break; | |
1614 | case 'N': | |
1615 | add_specific_symbol (optarg, &strip_specific_list); | |
1616 | break; | |
1617 | case 'o': | |
1618 | output_file = optarg; | |
1619 | break; | |
1620 | case 'p': | |
1621 | preserve_dates = true; | |
1622 | break; | |
1623 | case 'x': | |
1624 | discard_locals = LOCALS_ALL; | |
1625 | break; | |
1626 | case 'X': | |
1627 | discard_locals = LOCALS_START_L; | |
1628 | break; | |
1629 | case 'v': | |
1630 | verbose = true; | |
1631 | break; | |
1632 | case 'V': | |
1633 | show_version = true; | |
1634 | break; | |
1635 | case 0: | |
1636 | break; /* we've been given a long option */ | |
1637 | case 'h': | |
1638 | strip_usage (stdout, 0); | |
1639 | default: | |
1640 | strip_usage (stderr, 1); | |
1641 | } | |
1642 | } | |
1643 | ||
1644 | if (show_version) | |
1645 | print_version ("strip"); | |
1646 | ||
1647 | /* Default is to strip all symbols. */ | |
1648 | if (strip_symbols == STRIP_UNDEF | |
1649 | && discard_locals == LOCALS_UNDEF | |
1650 | && strip_specific_list == NULL) | |
1651 | strip_symbols = STRIP_ALL; | |
1652 | ||
1653 | if (output_target == (char *) NULL) | |
1654 | output_target = input_target; | |
1655 | ||
1656 | i = optind; | |
1657 | if (i == argc | |
1658 | || (output_file != NULL && (i + 1) < argc)) | |
1659 | strip_usage (stderr, 1); | |
1660 | ||
1661 | for (; i < argc; i++) | |
1662 | { | |
1663 | int hold_status = status; | |
1664 | struct stat statbuf; | |
1665 | char *tmpname; | |
1666 | ||
1667 | if (preserve_dates) | |
1668 | { | |
1669 | if (stat (argv[i], &statbuf) < 0) | |
1670 | { | |
1671 | non_fatal (_("%s: cannot stat: %s"), argv[i], strerror (errno)); | |
1672 | continue; | |
1673 | } | |
1674 | } | |
1675 | ||
1676 | if (output_file != NULL) | |
1677 | tmpname = output_file; | |
1678 | else | |
1679 | tmpname = make_tempname (argv[i]); | |
1680 | status = 0; | |
1681 | ||
1682 | copy_file (argv[i], tmpname, input_target, output_target); | |
1683 | if (status == 0) | |
1684 | { | |
1685 | if (preserve_dates) | |
1686 | set_times (tmpname, &statbuf); | |
1687 | if (output_file == NULL) | |
1688 | smart_rename (tmpname, argv[i], preserve_dates); | |
1689 | status = hold_status; | |
1690 | } | |
1691 | else | |
1692 | unlink (tmpname); | |
1693 | if (output_file == NULL) | |
1694 | free (tmpname); | |
1695 | } | |
1696 | ||
1697 | return 0; | |
1698 | } | |
1699 | ||
1700 | static int | |
1701 | copy_main (argc, argv) | |
1702 | int argc; | |
1703 | char *argv[]; | |
1704 | { | |
1705 | char *input_filename = NULL, *output_filename = NULL; | |
1706 | char *input_target = NULL, *output_target = NULL; | |
1707 | boolean show_version = false; | |
1708 | boolean change_warn = true; | |
1709 | int c; | |
1710 | struct section_list *p; | |
1711 | struct stat statbuf; | |
1712 | ||
f91ea849 | 1713 | while ((c = getopt_long (argc, argv, "b:i:I:j:K:N:s:O:d:F:L:R:SpgxXVvW:", |
252b5132 RH |
1714 | copy_options, (int *) 0)) != EOF) |
1715 | { | |
1716 | switch (c) | |
1717 | { | |
1718 | case 'b': | |
1719 | copy_byte = atoi (optarg); | |
1720 | if (copy_byte < 0) | |
1721 | fatal (_("byte number must be non-negative")); | |
1722 | break; | |
1723 | case 'i': | |
1724 | interleave = atoi (optarg); | |
1725 | if (interleave < 1) | |
1726 | fatal (_("interleave must be positive")); | |
1727 | break; | |
1728 | case 'I': | |
1729 | case 's': /* "source" - 'I' is preferred */ | |
1730 | input_target = optarg; | |
1731 | break; | |
1732 | case 'O': | |
1733 | case 'd': /* "destination" - 'O' is preferred */ | |
1734 | output_target = optarg; | |
1735 | break; | |
1736 | case 'F': | |
1737 | input_target = output_target = optarg; | |
1738 | break; | |
f91ea849 ILT |
1739 | case 'j': |
1740 | p = find_section_list (optarg, true); | |
1741 | if (p->remove) | |
1742 | fatal (_("%s both copied and removed"), optarg); | |
1743 | p->copy = true; | |
1744 | sections_copied = true; | |
1745 | break; | |
252b5132 RH |
1746 | case 'R': |
1747 | p = find_section_list (optarg, true); | |
f91ea849 ILT |
1748 | if (p->copy) |
1749 | fatal (_("%s both copied and removed"), optarg); | |
252b5132 RH |
1750 | p->remove = true; |
1751 | sections_removed = true; | |
1752 | break; | |
1753 | case 'S': | |
1754 | strip_symbols = STRIP_ALL; | |
1755 | break; | |
1756 | case 'g': | |
1757 | strip_symbols = STRIP_DEBUG; | |
1758 | break; | |
1759 | case OPTION_STRIP_UNNEEDED: | |
1760 | strip_symbols = STRIP_UNNEEDED; | |
1761 | break; | |
1762 | case 'K': | |
1763 | add_specific_symbol (optarg, &keep_specific_list); | |
1764 | break; | |
1765 | case 'N': | |
1766 | add_specific_symbol (optarg, &strip_specific_list); | |
1767 | break; | |
1768 | case 'L': | |
1769 | add_specific_symbol (optarg, &localize_specific_list); | |
1770 | break; | |
1771 | case 'W': | |
1772 | add_specific_symbol (optarg, &weaken_specific_list); | |
1773 | break; | |
1774 | case 'p': | |
1775 | preserve_dates = true; | |
1776 | break; | |
1777 | case 'x': | |
1778 | discard_locals = LOCALS_ALL; | |
1779 | break; | |
1780 | case 'X': | |
1781 | discard_locals = LOCALS_START_L; | |
1782 | break; | |
1783 | case 'v': | |
1784 | verbose = true; | |
1785 | break; | |
1786 | case 'V': | |
1787 | show_version = true; | |
1788 | break; | |
1789 | case OPTION_WEAKEN: | |
1790 | weaken = true; | |
1791 | break; | |
1792 | case OPTION_ADD_SECTION: | |
1793 | { | |
1794 | const char *s; | |
1795 | struct stat st; | |
1796 | struct section_add *pa; | |
1797 | int len; | |
1798 | char *name; | |
1799 | FILE *f; | |
1800 | ||
1801 | s = strchr (optarg, '='); | |
1802 | ||
1803 | if (s == NULL) | |
1804 | fatal (_("bad format for --add-section NAME=FILENAME")); | |
1805 | ||
1806 | if (stat (s + 1, & st) < 0) | |
1807 | fatal (_("cannot stat: %s: %s"), s + 1, strerror (errno)); | |
1808 | ||
1809 | pa = (struct section_add *) xmalloc (sizeof (struct section_add)); | |
1810 | ||
1811 | len = s - optarg; | |
1812 | name = (char *) xmalloc (len + 1); | |
1813 | strncpy (name, optarg, len); | |
1814 | name[len] = '\0'; | |
1815 | pa->name = name; | |
1816 | ||
1817 | pa->filename = s + 1; | |
1818 | ||
1819 | pa->size = st.st_size; | |
1820 | ||
1821 | pa->contents = (bfd_byte *) xmalloc (pa->size); | |
1822 | f = fopen (pa->filename, FOPEN_RB); | |
1823 | ||
1824 | if (f == NULL) | |
1825 | fatal (_("cannot open: %s: %s"), pa->filename, strerror (errno)); | |
1826 | ||
1827 | if (fread (pa->contents, 1, pa->size, f) == 0 | |
1828 | || ferror (f)) | |
1829 | fatal (_("%s: fread failed"), pa->filename); | |
1830 | ||
1831 | fclose (f); | |
1832 | ||
1833 | pa->next = add_sections; | |
1834 | add_sections = pa; | |
1835 | } | |
1836 | break; | |
1837 | case OPTION_CHANGE_START: | |
1838 | change_start = parse_vma (optarg, "--change-start"); | |
1839 | break; | |
1840 | case OPTION_CHANGE_SECTION_ADDRESS: | |
1841 | case OPTION_CHANGE_SECTION_LMA: | |
1842 | case OPTION_CHANGE_SECTION_VMA: | |
1843 | { | |
1844 | const char *s; | |
1845 | int len; | |
1846 | char *name; | |
b4c96d0d | 1847 | char *option = NULL; |
252b5132 | 1848 | bfd_vma val; |
b4c96d0d | 1849 | enum change_action what = CHANGE_IGNORE; |
252b5132 RH |
1850 | |
1851 | switch (c) | |
1852 | { | |
b4c96d0d ILT |
1853 | case OPTION_CHANGE_SECTION_ADDRESS: |
1854 | option = "--change-section-address"; | |
1855 | break; | |
1856 | case OPTION_CHANGE_SECTION_LMA: | |
1857 | option = "--change-section-lma"; | |
1858 | break; | |
1859 | case OPTION_CHANGE_SECTION_VMA: | |
1860 | option = "--change-section-vma"; | |
1861 | break; | |
252b5132 RH |
1862 | } |
1863 | ||
1864 | s = strchr (optarg, '='); | |
1865 | if (s == NULL) | |
1866 | { | |
1867 | s = strchr (optarg, '+'); | |
1868 | if (s == NULL) | |
1869 | { | |
1870 | s = strchr (optarg, '-'); | |
1871 | if (s == NULL) | |
1872 | fatal (_("bad format for %s"), option); | |
1873 | } | |
1874 | } | |
1875 | ||
1876 | len = s - optarg; | |
1877 | name = (char *) xmalloc (len + 1); | |
1878 | strncpy (name, optarg, len); | |
1879 | name[len] = '\0'; | |
1880 | ||
1881 | p = find_section_list (name, true); | |
1882 | ||
1883 | val = parse_vma (s + 1, option); | |
1884 | ||
1885 | switch (*s) | |
1886 | { | |
1887 | case '=': what = CHANGE_SET; break; | |
1888 | case '-': val = - val; /* Drop through. */ | |
1889 | case '+': what = CHANGE_MODIFY; break; | |
1890 | } | |
1891 | ||
1892 | switch (c) | |
1893 | { | |
1894 | case OPTION_CHANGE_SECTION_ADDRESS: | |
1895 | p->change_vma = what; | |
1896 | p->vma_val = val; | |
1897 | /* Drop through. */ | |
1898 | ||
1899 | case OPTION_CHANGE_SECTION_LMA: | |
1900 | p->change_lma = what; | |
1901 | p->lma_val = val; | |
1902 | break; | |
1903 | ||
1904 | case OPTION_CHANGE_SECTION_VMA: | |
1905 | p->change_vma = what; | |
1906 | p->vma_val = val; | |
1907 | break; | |
1908 | } | |
1909 | } | |
1910 | break; | |
1911 | case OPTION_CHANGE_ADDRESSES: | |
1912 | change_section_address = parse_vma (optarg, "--change-addresses"); | |
1913 | change_start = change_section_address; | |
1914 | break; | |
1915 | case OPTION_CHANGE_WARNINGS: | |
1916 | change_warn = true; | |
1917 | break; | |
1918 | case OPTION_CHANGE_LEADING_CHAR: | |
1919 | change_leading_char = true; | |
1920 | break; | |
1921 | case OPTION_DEBUGGING: | |
1922 | convert_debugging = true; | |
1923 | break; | |
1924 | case OPTION_GAP_FILL: | |
1925 | { | |
1926 | bfd_vma gap_fill_vma; | |
1927 | ||
1928 | gap_fill_vma = parse_vma (optarg, "--gap-fill"); | |
1929 | gap_fill = (bfd_byte) gap_fill_vma; | |
1930 | if ((bfd_vma) gap_fill != gap_fill_vma) | |
1931 | { | |
1932 | char buff[20]; | |
1933 | ||
1934 | sprintf_vma (buff, gap_fill_vma); | |
1935 | ||
1936 | non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"), | |
1937 | buff, gap_fill); | |
1938 | } | |
1939 | gap_fill_set = true; | |
1940 | } | |
1941 | break; | |
1942 | case OPTION_NO_CHANGE_WARNINGS: | |
1943 | change_warn = false; | |
1944 | break; | |
1945 | case OPTION_PAD_TO: | |
1946 | pad_to = parse_vma (optarg, "--pad-to"); | |
1947 | pad_to_set = true; | |
1948 | break; | |
1949 | case OPTION_REMOVE_LEADING_CHAR: | |
1950 | remove_leading_char = true; | |
1951 | break; | |
1952 | case OPTION_SET_SECTION_FLAGS: | |
1953 | { | |
1954 | const char *s; | |
1955 | int len; | |
1956 | char *name; | |
1957 | ||
1958 | s = strchr (optarg, '='); | |
1959 | if (s == NULL) | |
1960 | fatal (_("bad format for --set-section-flags")); | |
1961 | ||
1962 | len = s - optarg; | |
1963 | name = (char *) xmalloc (len + 1); | |
1964 | strncpy (name, optarg, len); | |
1965 | name[len] = '\0'; | |
1966 | ||
1967 | p = find_section_list (name, true); | |
1968 | ||
1969 | p->set_flags = true; | |
1970 | p->flags = parse_flags (s + 1); | |
1971 | } | |
1972 | break; | |
1973 | case OPTION_SET_START: | |
1974 | set_start = parse_vma (optarg, "--set-start"); | |
1975 | set_start_set = true; | |
1976 | break; | |
1977 | case 0: | |
1978 | break; /* we've been given a long option */ | |
1979 | case 'h': | |
1980 | copy_usage (stdout, 0); | |
1981 | default: | |
1982 | copy_usage (stderr, 1); | |
1983 | } | |
1984 | } | |
1985 | ||
1986 | if (show_version) | |
1987 | print_version ("objcopy"); | |
1988 | ||
1989 | if (copy_byte >= interleave) | |
1990 | fatal (_("byte number must be less than interleave")); | |
1991 | ||
1992 | if (optind == argc || optind + 2 < argc) | |
1993 | copy_usage (stderr, 1); | |
1994 | ||
1995 | input_filename = argv[optind]; | |
1996 | if (optind + 1 < argc) | |
1997 | output_filename = argv[optind + 1]; | |
1998 | ||
1999 | /* Default is to strip no symbols. */ | |
2000 | if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF) | |
2001 | strip_symbols = STRIP_NONE; | |
2002 | ||
2003 | if (output_target == (char *) NULL) | |
2004 | output_target = input_target; | |
2005 | ||
2006 | if (preserve_dates) | |
2007 | { | |
2008 | if (stat (input_filename, &statbuf) < 0) | |
2009 | fatal (_("Cannot stat: %s: %s"), input_filename, strerror (errno)); | |
2010 | } | |
2011 | ||
2012 | /* If there is no destination file then create a temp and rename | |
2013 | the result into the input. */ | |
2014 | ||
2015 | if (output_filename == (char *) NULL) | |
2016 | { | |
2017 | char *tmpname = make_tempname (input_filename); | |
2018 | ||
2019 | copy_file (input_filename, tmpname, input_target, output_target); | |
2020 | if (status == 0) | |
2021 | { | |
2022 | if (preserve_dates) | |
2023 | set_times (tmpname, &statbuf); | |
2024 | smart_rename (tmpname, input_filename, preserve_dates); | |
2025 | } | |
2026 | else | |
2027 | unlink (tmpname); | |
2028 | } | |
2029 | else | |
2030 | { | |
2031 | copy_file (input_filename, output_filename, input_target, output_target); | |
2032 | if (status == 0 && preserve_dates) | |
2033 | set_times (output_filename, &statbuf); | |
2034 | } | |
2035 | ||
2036 | if (change_warn) | |
2037 | { | |
2038 | for (p = change_sections; p != NULL; p = p->next) | |
2039 | { | |
2040 | if (! p->used) | |
2041 | { | |
2042 | if (p->change_vma != CHANGE_IGNORE) | |
2043 | { | |
2044 | char buff [20]; | |
2045 | ||
2046 | sprintf_vma (buff, p->vma_val); | |
2047 | ||
2048 | /* xgettext:c-format */ | |
2049 | non_fatal (_("Warning: --change-section-vma %s%c0x%s never used"), | |
2050 | p->name, | |
2051 | p->change_vma == CHANGE_SET ? '=' : '+', | |
2052 | buff); | |
2053 | } | |
2054 | ||
2055 | if (p->change_lma != CHANGE_IGNORE) | |
2056 | { | |
2057 | char buff [20]; | |
2058 | ||
2059 | sprintf_vma (buff, p->lma_val); | |
2060 | ||
2061 | /* xgettext:c-format */ | |
2062 | non_fatal (_("Warning: --change-section-lma %s%c0x%s never used"), | |
2063 | p->name, | |
2064 | p->change_lma == CHANGE_SET ? '=' : '+', | |
2065 | buff); | |
2066 | } | |
2067 | } | |
2068 | } | |
2069 | } | |
2070 | ||
2071 | return 0; | |
2072 | } | |
2073 | ||
2074 | int | |
2075 | main (argc, argv) | |
2076 | int argc; | |
2077 | char *argv[]; | |
2078 | { | |
2079 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
2080 | setlocale (LC_MESSAGES, ""); | |
2081 | #endif | |
2082 | bindtextdomain (PACKAGE, LOCALEDIR); | |
2083 | textdomain (PACKAGE); | |
2084 | ||
2085 | program_name = argv[0]; | |
2086 | xmalloc_set_program_name (program_name); | |
2087 | ||
2088 | START_PROGRESS (program_name, 0); | |
2089 | ||
2090 | strip_symbols = STRIP_UNDEF; | |
2091 | discard_locals = LOCALS_UNDEF; | |
2092 | ||
2093 | bfd_init (); | |
2094 | set_default_bfd_target (); | |
2095 | ||
2096 | if (is_strip < 0) | |
2097 | { | |
2098 | int i = strlen (program_name); | |
2099 | is_strip = (i >= 5 && strcmp (program_name + i - 5, "strip") == 0); | |
2100 | } | |
2101 | ||
2102 | if (is_strip) | |
2103 | strip_main (argc, argv); | |
2104 | else | |
2105 | copy_main (argc, argv); | |
2106 | ||
2107 | END_PROGRESS (program_name); | |
2108 | ||
2109 | return status; | |
2110 | } |