| 1 | /* objcopy.c -- copy object file from input to output, optionally massaging it. |
| 2 | Copyright (C) 1991, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Binutils. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 19 | \f |
| 20 | #include "bfd.h" |
| 21 | #include "progress.h" |
| 22 | #include "bucomm.h" |
| 23 | #include "getopt.h" |
| 24 | #include "libiberty.h" |
| 25 | #include "budbg.h" |
| 26 | #include <sys/stat.h> |
| 27 | |
| 28 | #ifdef HAVE_GOOD_UTIME_H |
| 29 | #include <utime.h> |
| 30 | #else /* ! HAVE_GOOD_UTIME_H */ |
| 31 | #ifdef HAVE_UTIMES |
| 32 | #include <sys/time.h> |
| 33 | #endif /* HAVE_UTIMES */ |
| 34 | #endif /* ! HAVE_GOOD_UTIME_H */ |
| 35 | |
| 36 | static void copy_usage PARAMS ((FILE *, int)); |
| 37 | static void strip_usage PARAMS ((FILE *, int)); |
| 38 | static flagword parse_flags PARAMS ((const char *)); |
| 39 | static struct section_list *find_section_list PARAMS ((const char *, boolean)); |
| 40 | static void setup_section PARAMS ((bfd *, asection *, PTR)); |
| 41 | static void copy_section PARAMS ((bfd *, asection *, PTR)); |
| 42 | static void get_sections PARAMS ((bfd *, asection *, PTR)); |
| 43 | static int compare_section_vma PARAMS ((const PTR, const PTR)); |
| 44 | static void add_strip_symbol PARAMS ((const char *)); |
| 45 | static boolean is_strip_symbol PARAMS ((const char *)); |
| 46 | static boolean is_strip_section PARAMS ((bfd *, asection *)); |
| 47 | static unsigned int filter_symbols |
| 48 | PARAMS ((bfd *, bfd *, asymbol **, asymbol **, long)); |
| 49 | static void mark_symbols_used_in_relocations PARAMS ((bfd *, asection *, PTR)); |
| 50 | static void filter_bytes PARAMS ((char *, bfd_size_type *)); |
| 51 | static boolean write_debugging_info PARAMS ((bfd *, PTR, long *, asymbol ***)); |
| 52 | static void copy_object PARAMS ((bfd *, bfd *)); |
| 53 | static void copy_archive PARAMS ((bfd *, bfd *, const char *)); |
| 54 | static void copy_file |
| 55 | PARAMS ((const char *, const char *, const char *, const char *)); |
| 56 | static int simple_copy PARAMS ((const char *, const char *)); |
| 57 | static int smart_rename PARAMS ((const char *, const char *)); |
| 58 | static void set_times PARAMS ((const char *, const struct stat *)); |
| 59 | static int strip_main PARAMS ((int, char **)); |
| 60 | static int copy_main PARAMS ((int, char **)); |
| 61 | |
| 62 | #define nonfatal(s) {bfd_nonfatal(s); status = 1; return;} |
| 63 | |
| 64 | static asymbol **isympp = NULL; /* Input symbols */ |
| 65 | static asymbol **osympp = NULL; /* Output symbols that survive stripping */ |
| 66 | |
| 67 | /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */ |
| 68 | static int copy_byte = -1; |
| 69 | static int interleave = 4; |
| 70 | |
| 71 | static boolean verbose; /* Print file and target names. */ |
| 72 | static int status = 0; /* Exit status. */ |
| 73 | |
| 74 | enum strip_action |
| 75 | { |
| 76 | strip_undef, |
| 77 | strip_none, /* don't strip */ |
| 78 | strip_debug, /* strip all debugger symbols */ |
| 79 | strip_unneeded, /* strip unnecessary symbols */ |
| 80 | strip_all /* strip all symbols */ |
| 81 | }; |
| 82 | |
| 83 | /* Which symbols to remove. */ |
| 84 | static enum strip_action strip_symbols; |
| 85 | |
| 86 | enum locals_action |
| 87 | { |
| 88 | locals_undef, |
| 89 | locals_start_L, /* discard locals starting with L */ |
| 90 | locals_all /* discard all locals */ |
| 91 | }; |
| 92 | |
| 93 | /* Which local symbols to remove. Overrides strip_all. */ |
| 94 | static enum locals_action discard_locals; |
| 95 | |
| 96 | /* Structure used to hold lists of sections and actions to take. */ |
| 97 | |
| 98 | struct section_list |
| 99 | { |
| 100 | /* Next section to adjust. */ |
| 101 | struct section_list *next; |
| 102 | /* Section name. */ |
| 103 | const char *name; |
| 104 | /* Whether this entry was used. */ |
| 105 | boolean used; |
| 106 | /* Whether to remove this section. */ |
| 107 | boolean remove; |
| 108 | /* Whether to adjust or set VMA. */ |
| 109 | enum { ignore_vma, adjust_vma, set_vma } adjust; |
| 110 | /* Amount to adjust by or set to. */ |
| 111 | bfd_vma val; |
| 112 | /* Whether to set the section flags. */ |
| 113 | boolean set_flags; |
| 114 | /* What to set the section flags to. */ |
| 115 | flagword flags; |
| 116 | }; |
| 117 | |
| 118 | static struct section_list *adjust_sections; |
| 119 | static boolean sections_removed; |
| 120 | |
| 121 | /* Adjustments to the start address. */ |
| 122 | static bfd_vma adjust_start = 0; |
| 123 | static boolean set_start_set = false; |
| 124 | static bfd_vma set_start; |
| 125 | |
| 126 | /* Adjustments to section VMA's. */ |
| 127 | static bfd_vma adjust_section_vma = 0; |
| 128 | |
| 129 | /* Filling gaps between sections. */ |
| 130 | static boolean gap_fill_set = false; |
| 131 | static bfd_byte gap_fill = 0; |
| 132 | |
| 133 | /* Pad to a given address. */ |
| 134 | static boolean pad_to_set = false; |
| 135 | static bfd_vma pad_to; |
| 136 | |
| 137 | /* List of sections to add. */ |
| 138 | |
| 139 | struct section_add |
| 140 | { |
| 141 | /* Next section to add. */ |
| 142 | struct section_add *next; |
| 143 | /* Name of section to add. */ |
| 144 | const char *name; |
| 145 | /* Name of file holding section contents. */ |
| 146 | const char *filename; |
| 147 | /* Size of file. */ |
| 148 | size_t size; |
| 149 | /* Contents of file. */ |
| 150 | bfd_byte *contents; |
| 151 | /* BFD section, after it has been added. */ |
| 152 | asection *section; |
| 153 | }; |
| 154 | |
| 155 | static struct section_add *add_sections; |
| 156 | |
| 157 | /* Whether to convert debugging information. */ |
| 158 | |
| 159 | static boolean convert_debugging = false; |
| 160 | |
| 161 | /* Whether to change the leading character in symbol names. */ |
| 162 | |
| 163 | static boolean change_leading_char = false; |
| 164 | |
| 165 | /* Whether to remove the leading character from global symbol names. */ |
| 166 | |
| 167 | static boolean remove_leading_char = false; |
| 168 | |
| 169 | /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ |
| 170 | |
| 171 | #define OPTION_ADD_SECTION 150 |
| 172 | #define OPTION_ADJUST_START (OPTION_ADD_SECTION + 1) |
| 173 | #define OPTION_ADJUST_VMA (OPTION_ADJUST_START + 1) |
| 174 | #define OPTION_ADJUST_SECTION_VMA (OPTION_ADJUST_VMA + 1) |
| 175 | #define OPTION_ADJUST_WARNINGS (OPTION_ADJUST_SECTION_VMA + 1) |
| 176 | #define OPTION_CHANGE_LEADING_CHAR (OPTION_ADJUST_WARNINGS + 1) |
| 177 | #define OPTION_DEBUGGING (OPTION_CHANGE_LEADING_CHAR + 1) |
| 178 | #define OPTION_GAP_FILL (OPTION_DEBUGGING + 1) |
| 179 | #define OPTION_NO_ADJUST_WARNINGS (OPTION_GAP_FILL + 1) |
| 180 | #define OPTION_PAD_TO (OPTION_NO_ADJUST_WARNINGS + 1) |
| 181 | #define OPTION_REMOVE_LEADING_CHAR (OPTION_PAD_TO + 1) |
| 182 | #define OPTION_SET_SECTION_FLAGS (OPTION_REMOVE_LEADING_CHAR + 1) |
| 183 | #define OPTION_SET_START (OPTION_SET_SECTION_FLAGS + 1) |
| 184 | #define OPTION_STRIP_UNNEEDED (OPTION_SET_START + 1) |
| 185 | #define OPTION_WEAKEN (OPTION_STRIP_UNNEEDED + 1) |
| 186 | |
| 187 | /* Options to handle if running as "strip". */ |
| 188 | |
| 189 | static struct option strip_options[] = |
| 190 | { |
| 191 | {"discard-all", no_argument, 0, 'x'}, |
| 192 | {"discard-locals", no_argument, 0, 'X'}, |
| 193 | {"format", required_argument, 0, 'F'}, /* Obsolete */ |
| 194 | {"help", no_argument, 0, 'h'}, |
| 195 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| 196 | {"input-target", required_argument, 0, 'I'}, |
| 197 | {"keep-symbol", required_argument, 0, 'K'}, |
| 198 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ |
| 199 | {"output-target", required_argument, 0, 'O'}, |
| 200 | {"preserve-dates", no_argument, 0, 'p'}, |
| 201 | {"remove-section", required_argument, 0, 'R'}, |
| 202 | {"strip-all", no_argument, 0, 's'}, |
| 203 | {"strip-debug", no_argument, 0, 'S'}, |
| 204 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, |
| 205 | {"strip-symbol", required_argument, 0, 'N'}, |
| 206 | {"target", required_argument, 0, 'F'}, |
| 207 | {"verbose", no_argument, 0, 'v'}, |
| 208 | {"version", no_argument, 0, 'V'}, |
| 209 | {0, no_argument, 0, 0} |
| 210 | }; |
| 211 | |
| 212 | /* Options to handle if running as "objcopy". */ |
| 213 | |
| 214 | static struct option copy_options[] = |
| 215 | { |
| 216 | {"add-section", required_argument, 0, OPTION_ADD_SECTION}, |
| 217 | {"adjust-start", required_argument, 0, OPTION_ADJUST_START}, |
| 218 | {"adjust-vma", required_argument, 0, OPTION_ADJUST_VMA}, |
| 219 | {"adjust-section-vma", required_argument, 0, OPTION_ADJUST_SECTION_VMA}, |
| 220 | {"adjust-warnings", no_argument, 0, OPTION_ADJUST_WARNINGS}, |
| 221 | {"byte", required_argument, 0, 'b'}, |
| 222 | {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR}, |
| 223 | {"debugging", no_argument, 0, OPTION_DEBUGGING}, |
| 224 | {"discard-all", no_argument, 0, 'x'}, |
| 225 | {"discard-locals", no_argument, 0, 'X'}, |
| 226 | {"format", required_argument, 0, 'F'}, /* Obsolete */ |
| 227 | {"gap-fill", required_argument, 0, OPTION_GAP_FILL}, |
| 228 | {"help", no_argument, 0, 'h'}, |
| 229 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| 230 | {"input-target", required_argument, 0, 'I'}, |
| 231 | {"interleave", required_argument, 0, 'i'}, |
| 232 | {"keep-symbol", required_argument, 0, 'K'}, |
| 233 | {"no-adjust-warnings", no_argument, 0, OPTION_NO_ADJUST_WARNINGS}, |
| 234 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ |
| 235 | {"output-target", required_argument, 0, 'O'}, |
| 236 | {"pad-to", required_argument, 0, OPTION_PAD_TO}, |
| 237 | {"preserve-dates", no_argument, 0, 'p'}, |
| 238 | {"privatize-symbol", required_argument, 0, 'P'}, |
| 239 | {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR}, |
| 240 | {"remove-section", required_argument, 0, 'R'}, |
| 241 | {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS}, |
| 242 | {"set-start", required_argument, 0, OPTION_SET_START}, |
| 243 | {"strip-all", no_argument, 0, 'S'}, |
| 244 | {"strip-debug", no_argument, 0, 'g'}, |
| 245 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, |
| 246 | {"strip-symbol", required_argument, 0, 'N'}, |
| 247 | {"target", required_argument, 0, 'F'}, |
| 248 | {"verbose", no_argument, 0, 'v'}, |
| 249 | {"version", no_argument, 0, 'V'}, |
| 250 | {"weaken", no_argument, 0, OPTION_WEAKEN}, |
| 251 | {"weaken-symbol", required_argument, 0, 'W'}, |
| 252 | {0, no_argument, 0, 0} |
| 253 | }; |
| 254 | |
| 255 | /* IMPORTS */ |
| 256 | extern char *program_name; |
| 257 | |
| 258 | /* This flag distinguishes between strip and objcopy: |
| 259 | 1 means this is 'strip'; 0 means this is 'objcopy'. |
| 260 | -1 means if we should use argv[0] to decide. */ |
| 261 | extern int is_strip; |
| 262 | |
| 263 | |
| 264 | static void |
| 265 | copy_usage (stream, exit_status) |
| 266 | FILE *stream; |
| 267 | int exit_status; |
| 268 | { |
| 269 | fprintf (stream, "\ |
| 270 | Usage: %s [-vVSpgxX] [-I bfdname] [-O bfdname] [-F bfdname] [-b byte]\n\ |
| 271 | [-R section] [-i interleave] [--interleave=interleave] [--byte=byte]\n\ |
| 272 | [--input-target=bfdname] [--output-target=bfdname] [--target=bfdname]\n\ |
| 273 | [--strip-all] [--strip-debug] [--strip-unneeded] [--discard-all]\n\ |
| 274 | [--discard-locals] [--debugging] [--remove-section=section]\n", |
| 275 | program_name); |
| 276 | fprintf (stream, "\ |
| 277 | [--gap-fill=val] [--pad-to=address] [--preserve-dates]\n\ |
| 278 | [--set-start=val] [--adjust-start=incr]\n\ |
| 279 | [--adjust-vma=incr] [--adjust-section-vma=section{=,+,-}val]\n\ |
| 280 | [--adjust-warnings] [--no-adjust-warnings]\n\ |
| 281 | [--set-section-flags=section=flags] [--add-section=sectionname=filename]\n\ |
| 282 | [--keep-symbol symbol] [-K symbol] [--strip-symbol symbol] [-N symbol]\n\ |
| 283 | [--privatize-symbol symbol] [-P symbol] [--weaken-symbol symbol]\n\ |
| 284 | [-W symbol] [--change-leading-char] [--remove-leading-char] [--weaken]\n\ |
| 285 | [--verbose] [--version] [--help] in-file [out-file]\n"); |
| 286 | list_supported_targets (program_name, stream); |
| 287 | if (exit_status == 0) |
| 288 | fprintf (stream, "Report bugs to bug-gnu-utils@prep.ai.mit.edu\n"); |
| 289 | exit (exit_status); |
| 290 | } |
| 291 | |
| 292 | static void |
| 293 | strip_usage (stream, exit_status) |
| 294 | FILE *stream; |
| 295 | int exit_status; |
| 296 | { |
| 297 | fprintf (stream, "\ |
| 298 | Usage: %s [-vVsSpgxX] [-I bfdname] [-O bfdname] [-F bfdname] [-R section]\n\ |
| 299 | [--input-target=bfdname] [--output-target=bfdname] [--target=bfdname]\n\ |
| 300 | [--strip-all] [--strip-debug] [--strip-unneeded] [--discard-all]\n\ |
| 301 | [--discard-locals] [--keep-symbol symbol] [-K symbol]\n\ |
| 302 | [--strip-symbol symbol] [-N symbol] [--remove-section=section]\n\ |
| 303 | [-o file] [--preserve-dates] [--verbose] [--version] [--help] file...\n", |
| 304 | program_name); |
| 305 | list_supported_targets (program_name, stream); |
| 306 | if (exit_status == 0) |
| 307 | fprintf (stream, "Report bugs to bug-gnu-utils@prep.ai.mit.edu\n"); |
| 308 | exit (exit_status); |
| 309 | } |
| 310 | |
| 311 | /* Parse section flags into a flagword, with a fatal error if the |
| 312 | string can't be parsed. */ |
| 313 | |
| 314 | static flagword |
| 315 | parse_flags (s) |
| 316 | const char *s; |
| 317 | { |
| 318 | flagword ret; |
| 319 | const char *snext; |
| 320 | int len; |
| 321 | |
| 322 | ret = SEC_NO_FLAGS; |
| 323 | |
| 324 | do |
| 325 | { |
| 326 | snext = strchr (s, ','); |
| 327 | if (snext == NULL) |
| 328 | len = strlen (s); |
| 329 | else |
| 330 | { |
| 331 | len = snext - s; |
| 332 | ++snext; |
| 333 | } |
| 334 | |
| 335 | #define PARSE_FLAG(fname,fval) if (strncmp (fname, s, len) == 0) ret |= fval; |
| 336 | PARSE_FLAG ("alloc", SEC_ALLOC); |
| 337 | PARSE_FLAG ("load", SEC_LOAD); |
| 338 | PARSE_FLAG ("readonly", SEC_READONLY); |
| 339 | PARSE_FLAG ("code", SEC_CODE); |
| 340 | PARSE_FLAG ("data", SEC_DATA); |
| 341 | PARSE_FLAG ("rom", SEC_ROM); |
| 342 | #undef PARSE_FLAG |
| 343 | |
| 344 | s = snext; |
| 345 | } |
| 346 | while (s != NULL); |
| 347 | |
| 348 | return ret; |
| 349 | } |
| 350 | |
| 351 | /* Find and optionally add an entry in the adjust_sections list. */ |
| 352 | |
| 353 | static struct section_list * |
| 354 | find_section_list (name, add) |
| 355 | const char *name; |
| 356 | boolean add; |
| 357 | { |
| 358 | register struct section_list *p; |
| 359 | |
| 360 | for (p = adjust_sections; p != NULL; p = p->next) |
| 361 | if (strcmp (p->name, name) == 0) |
| 362 | return p; |
| 363 | |
| 364 | if (! add) |
| 365 | return NULL; |
| 366 | |
| 367 | p = (struct section_list *) xmalloc (sizeof (struct section_list)); |
| 368 | p->name = name; |
| 369 | p->used = false; |
| 370 | p->remove = false; |
| 371 | p->adjust = ignore_vma; |
| 372 | p->val = 0; |
| 373 | p->set_flags = false; |
| 374 | p->flags = 0; |
| 375 | |
| 376 | p->next = adjust_sections; |
| 377 | adjust_sections = p; |
| 378 | |
| 379 | return p; |
| 380 | } |
| 381 | |
| 382 | /* Make a list of symbols to explicitly strip out, or to keep. A |
| 383 | linked list is good enough for a small number from the command |
| 384 | line, but this will slow things down a lot if many symbols are |
| 385 | being deleted. */ |
| 386 | |
| 387 | struct symlist |
| 388 | { |
| 389 | const char *name; |
| 390 | struct symlist *next; |
| 391 | }; |
| 392 | |
| 393 | /* List of symbols to strip, keep, privatize, and weaken. */ |
| 394 | |
| 395 | static struct symlist *strip_specific_list = NULL; |
| 396 | static struct symlist *keep_specific_list = NULL; |
| 397 | static struct symlist *privatize_specific_list = NULL; |
| 398 | static struct symlist *weaken_specific_list = NULL; |
| 399 | |
| 400 | /* If this is true, we weaken global symbols (set BSF_WEAK). */ |
| 401 | |
| 402 | static boolean weaken = false; |
| 403 | |
| 404 | /* Add a symbol to strip_specific_list. */ |
| 405 | |
| 406 | static void |
| 407 | add_specific_symbol (name, list) |
| 408 | const char *name; |
| 409 | struct symlist **list; |
| 410 | { |
| 411 | struct symlist *tmp_list; |
| 412 | |
| 413 | tmp_list = (struct symlist *) xmalloc (sizeof (struct symlist)); |
| 414 | tmp_list->name = name; |
| 415 | tmp_list->next = *list; |
| 416 | *list = tmp_list; |
| 417 | } |
| 418 | |
| 419 | /* See whether a symbol should be stripped or kept based on |
| 420 | strip_specific_list and keep_symbols. */ |
| 421 | |
| 422 | static boolean |
| 423 | is_specified_symbol (name, list) |
| 424 | const char *name; |
| 425 | struct symlist *list; |
| 426 | { |
| 427 | struct symlist *tmp_list; |
| 428 | |
| 429 | for (tmp_list = list; tmp_list; tmp_list = tmp_list->next) |
| 430 | { |
| 431 | if (strcmp (name, tmp_list->name) == 0) |
| 432 | return true; |
| 433 | } |
| 434 | return false; |
| 435 | } |
| 436 | |
| 437 | /* See if a section is being removed. */ |
| 438 | |
| 439 | static boolean |
| 440 | is_strip_section (abfd, sec) |
| 441 | bfd *abfd; |
| 442 | asection *sec; |
| 443 | { |
| 444 | struct section_list *p; |
| 445 | |
| 446 | if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0 |
| 447 | && (strip_symbols == strip_debug |
| 448 | || strip_symbols == strip_unneeded |
| 449 | || strip_symbols == strip_all |
| 450 | || discard_locals == locals_all |
| 451 | || convert_debugging)) |
| 452 | return true; |
| 453 | |
| 454 | if (! sections_removed) |
| 455 | return false; |
| 456 | p = find_section_list (bfd_get_section_name (abfd, sec), false); |
| 457 | return p != NULL && p->remove ? true : false; |
| 458 | } |
| 459 | |
| 460 | /* Choose which symbol entries to copy; put the result in OSYMS. |
| 461 | We don't copy in place, because that confuses the relocs. |
| 462 | Return the number of symbols to print. */ |
| 463 | |
| 464 | static unsigned int |
| 465 | filter_symbols (abfd, obfd, osyms, isyms, symcount) |
| 466 | bfd *abfd; |
| 467 | bfd *obfd; |
| 468 | asymbol **osyms, **isyms; |
| 469 | long symcount; |
| 470 | { |
| 471 | register asymbol **from = isyms, **to = osyms; |
| 472 | long src_count = 0, dst_count = 0; |
| 473 | |
| 474 | for (; src_count < symcount; src_count++) |
| 475 | { |
| 476 | asymbol *sym = from[src_count]; |
| 477 | flagword flags = sym->flags; |
| 478 | const char *name = bfd_asymbol_name (sym); |
| 479 | int keep; |
| 480 | |
| 481 | if (change_leading_char |
| 482 | && (bfd_get_symbol_leading_char (abfd) |
| 483 | != bfd_get_symbol_leading_char (obfd)) |
| 484 | && (bfd_get_symbol_leading_char (abfd) == '\0' |
| 485 | || (name[0] == bfd_get_symbol_leading_char (abfd)))) |
| 486 | { |
| 487 | if (bfd_get_symbol_leading_char (obfd) == '\0') |
| 488 | name = bfd_asymbol_name (sym) = name + 1; |
| 489 | else |
| 490 | { |
| 491 | char *n; |
| 492 | |
| 493 | n = xmalloc (strlen (name) + 2); |
| 494 | n[0] = bfd_get_symbol_leading_char (obfd); |
| 495 | if (bfd_get_symbol_leading_char (abfd) == '\0') |
| 496 | strcpy (n + 1, name); |
| 497 | else |
| 498 | strcpy (n + 1, name + 1); |
| 499 | name = bfd_asymbol_name (sym) = n; |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | if (remove_leading_char |
| 504 | && ((flags & BSF_GLOBAL) != 0 |
| 505 | || (flags & BSF_WEAK) != 0 |
| 506 | || bfd_is_und_section (bfd_get_section (sym)) |
| 507 | || bfd_is_com_section (bfd_get_section (sym))) |
| 508 | && name[0] == bfd_get_symbol_leading_char (abfd)) |
| 509 | name = bfd_asymbol_name (sym) = name + 1; |
| 510 | |
| 511 | if ((flags & BSF_KEEP) != 0) /* Used in relocation. */ |
| 512 | keep = 1; |
| 513 | else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */ |
| 514 | || (flags & BSF_WEAK) != 0 |
| 515 | || bfd_is_und_section (bfd_get_section (sym)) |
| 516 | || bfd_is_com_section (bfd_get_section (sym))) |
| 517 | keep = strip_symbols != strip_unneeded; |
| 518 | else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */ |
| 519 | keep = (strip_symbols != strip_debug |
| 520 | && strip_symbols != strip_unneeded |
| 521 | && ! convert_debugging); |
| 522 | else /* Local symbol. */ |
| 523 | keep = (strip_symbols != strip_unneeded |
| 524 | && (discard_locals != locals_all |
| 525 | && (discard_locals != locals_start_L |
| 526 | || ! bfd_is_local_label (abfd, sym)))); |
| 527 | |
| 528 | if (keep && is_specified_symbol (name, strip_specific_list)) |
| 529 | keep = 0; |
| 530 | if (!keep && is_specified_symbol (name, keep_specific_list)) |
| 531 | keep = 1; |
| 532 | if (keep && is_strip_section (abfd, bfd_get_section (sym))) |
| 533 | keep = 0; |
| 534 | |
| 535 | if (keep && (flags & BSF_GLOBAL) != 0 |
| 536 | && (weaken || is_specified_symbol (name, weaken_specific_list))) |
| 537 | { |
| 538 | sym->flags &=~ BSF_GLOBAL; |
| 539 | sym->flags |= BSF_WEAK; |
| 540 | } |
| 541 | if (keep && (flags & (BSF_GLOBAL | BSF_WEAK)) |
| 542 | && is_specified_symbol (name, privatize_specific_list)) |
| 543 | { |
| 544 | sym->flags &= ~(BSF_GLOBAL | BSF_WEAK); |
| 545 | sym->flags |= BSF_LOCAL; |
| 546 | } |
| 547 | |
| 548 | if (keep) |
| 549 | to[dst_count++] = sym; |
| 550 | } |
| 551 | |
| 552 | to[dst_count] = NULL; |
| 553 | |
| 554 | return dst_count; |
| 555 | } |
| 556 | |
| 557 | /* Keep only every `copy_byte'th byte in MEMHUNK, which is *SIZE bytes long. |
| 558 | Adjust *SIZE. */ |
| 559 | |
| 560 | static void |
| 561 | filter_bytes (memhunk, size) |
| 562 | char *memhunk; |
| 563 | bfd_size_type *size; |
| 564 | { |
| 565 | char *from = memhunk + copy_byte, *to = memhunk, *end = memhunk + *size; |
| 566 | |
| 567 | for (; from < end; from += interleave) |
| 568 | *to++ = *from; |
| 569 | *size /= interleave; |
| 570 | } |
| 571 | |
| 572 | /* Copy object file IBFD onto OBFD. */ |
| 573 | |
| 574 | static void |
| 575 | copy_object (ibfd, obfd) |
| 576 | bfd *ibfd; |
| 577 | bfd *obfd; |
| 578 | { |
| 579 | bfd_vma start; |
| 580 | long symcount; |
| 581 | asection **osections = NULL; |
| 582 | bfd_size_type *gaps = NULL; |
| 583 | bfd_size_type max_gap = 0; |
| 584 | |
| 585 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 586 | { |
| 587 | nonfatal (bfd_get_filename (obfd)); |
| 588 | } |
| 589 | |
| 590 | if (verbose) |
| 591 | printf ("copy from %s(%s) to %s(%s)\n", |
| 592 | bfd_get_filename(ibfd), bfd_get_target(ibfd), |
| 593 | bfd_get_filename(obfd), bfd_get_target(obfd)); |
| 594 | |
| 595 | if (set_start_set) |
| 596 | start = set_start; |
| 597 | else |
| 598 | start = bfd_get_start_address (ibfd); |
| 599 | start += adjust_start; |
| 600 | |
| 601 | if (!bfd_set_start_address (obfd, start) |
| 602 | || !bfd_set_file_flags (obfd, |
| 603 | (bfd_get_file_flags (ibfd) |
| 604 | & bfd_applicable_file_flags (obfd)))) |
| 605 | { |
| 606 | nonfatal (bfd_get_filename (ibfd)); |
| 607 | } |
| 608 | |
| 609 | /* Copy architecture of input file to output file */ |
| 610 | if (!bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), |
| 611 | bfd_get_mach (ibfd))) |
| 612 | { |
| 613 | fprintf (stderr, |
| 614 | "Warning: Output file cannot represent architecture %s\n", |
| 615 | bfd_printable_arch_mach (bfd_get_arch (ibfd), |
| 616 | bfd_get_mach (ibfd))); |
| 617 | } |
| 618 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 619 | { |
| 620 | nonfatal (bfd_get_filename(ibfd)); |
| 621 | } |
| 622 | |
| 623 | if (isympp) |
| 624 | free (isympp); |
| 625 | if (osympp != isympp) |
| 626 | free (osympp); |
| 627 | |
| 628 | /* bfd mandates that all output sections be created and sizes set before |
| 629 | any output is done. Thus, we traverse all sections multiple times. */ |
| 630 | bfd_map_over_sections (ibfd, setup_section, (void *) obfd); |
| 631 | |
| 632 | if (add_sections != NULL) |
| 633 | { |
| 634 | struct section_add *padd; |
| 635 | struct section_list *pset; |
| 636 | |
| 637 | for (padd = add_sections; padd != NULL; padd = padd->next) |
| 638 | { |
| 639 | padd->section = bfd_make_section (obfd, padd->name); |
| 640 | if (padd->section == NULL) |
| 641 | { |
| 642 | fprintf (stderr, "%s: can't create section `%s': %s\n", |
| 643 | program_name, padd->name, |
| 644 | bfd_errmsg (bfd_get_error ())); |
| 645 | status = 1; |
| 646 | return; |
| 647 | } |
| 648 | else |
| 649 | { |
| 650 | flagword flags; |
| 651 | |
| 652 | if (! bfd_set_section_size (obfd, padd->section, padd->size)) |
| 653 | nonfatal (bfd_get_filename (obfd)); |
| 654 | |
| 655 | pset = find_section_list (padd->name, false); |
| 656 | if (pset != NULL) |
| 657 | pset->used = true; |
| 658 | |
| 659 | if (pset != NULL && pset->set_flags) |
| 660 | flags = pset->flags | SEC_HAS_CONTENTS; |
| 661 | else |
| 662 | flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA; |
| 663 | if (! bfd_set_section_flags (obfd, padd->section, flags)) |
| 664 | nonfatal (bfd_get_filename (obfd)); |
| 665 | |
| 666 | if (pset != NULL |
| 667 | && (pset->adjust == adjust_vma |
| 668 | || pset->adjust == set_vma)) |
| 669 | { |
| 670 | if (! bfd_set_section_vma (obfd, padd->section, pset->val)) |
| 671 | nonfatal (bfd_get_filename (obfd)); |
| 672 | } |
| 673 | } |
| 674 | } |
| 675 | } |
| 676 | |
| 677 | if (gap_fill_set || pad_to_set) |
| 678 | { |
| 679 | asection **set; |
| 680 | unsigned int c, i; |
| 681 | |
| 682 | /* We must fill in gaps between the sections and/or we must pad |
| 683 | the last section to a specified address. We do this by |
| 684 | grabbing a list of the sections, sorting them by VMA, and |
| 685 | increasing the section sizes as required to fill the gaps. |
| 686 | We write out the gap contents below. */ |
| 687 | |
| 688 | c = bfd_count_sections (obfd); |
| 689 | osections = (asection **) xmalloc (c * sizeof (asection *)); |
| 690 | set = osections; |
| 691 | bfd_map_over_sections (obfd, get_sections, (void *) &set); |
| 692 | |
| 693 | qsort (osections, c, sizeof (asection *), compare_section_vma); |
| 694 | |
| 695 | gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type)); |
| 696 | memset (gaps, 0, c * sizeof (bfd_size_type)); |
| 697 | |
| 698 | if (gap_fill_set) |
| 699 | { |
| 700 | for (i = 0; i < c - 1; i++) |
| 701 | { |
| 702 | flagword flags; |
| 703 | bfd_size_type size; |
| 704 | bfd_vma gap_start, gap_stop; |
| 705 | |
| 706 | flags = bfd_get_section_flags (obfd, osections[i]); |
| 707 | if ((flags & SEC_HAS_CONTENTS) == 0 |
| 708 | || (flags & SEC_LOAD) == 0) |
| 709 | continue; |
| 710 | |
| 711 | size = bfd_section_size (obfd, osections[i]); |
| 712 | gap_start = bfd_section_vma (obfd, osections[i]) + size; |
| 713 | gap_stop = bfd_section_vma (obfd, osections[i + 1]); |
| 714 | if (gap_start < gap_stop) |
| 715 | { |
| 716 | if (! bfd_set_section_size (obfd, osections[i], |
| 717 | size + (gap_stop - gap_start))) |
| 718 | { |
| 719 | fprintf (stderr, "%s: Can't fill gap after %s: %s\n", |
| 720 | program_name, |
| 721 | bfd_get_section_name (obfd, osections[i]), |
| 722 | bfd_errmsg (bfd_get_error())); |
| 723 | status = 1; |
| 724 | break; |
| 725 | } |
| 726 | gaps[i] = gap_stop - gap_start; |
| 727 | if (max_gap < gap_stop - gap_start) |
| 728 | max_gap = gap_stop - gap_start; |
| 729 | } |
| 730 | } |
| 731 | } |
| 732 | |
| 733 | if (pad_to_set) |
| 734 | { |
| 735 | bfd_vma vma; |
| 736 | bfd_size_type size; |
| 737 | |
| 738 | vma = bfd_section_vma (obfd, osections[c - 1]); |
| 739 | size = bfd_section_size (obfd, osections[c - 1]); |
| 740 | if (vma + size < pad_to) |
| 741 | { |
| 742 | if (! bfd_set_section_size (obfd, osections[c - 1], |
| 743 | pad_to - vma)) |
| 744 | { |
| 745 | fprintf (stderr, "%s: Can't add padding to %s: %s\n", |
| 746 | program_name, |
| 747 | bfd_get_section_name (obfd, osections[c - 1]), |
| 748 | bfd_errmsg (bfd_get_error ())); |
| 749 | status = 1; |
| 750 | } |
| 751 | else |
| 752 | { |
| 753 | gaps[c - 1] = pad_to - (vma + size); |
| 754 | if (max_gap < pad_to - (vma + size)) |
| 755 | max_gap = pad_to - (vma + size); |
| 756 | } |
| 757 | } |
| 758 | } |
| 759 | } |
| 760 | |
| 761 | /* Symbol filtering must happen after the output sections have |
| 762 | been created, but before their contents are set. */ |
| 763 | if (strip_symbols == strip_all) |
| 764 | { |
| 765 | osympp = isympp = NULL; |
| 766 | symcount = 0; |
| 767 | } |
| 768 | else |
| 769 | { |
| 770 | long symsize; |
| 771 | PTR dhandle = NULL; |
| 772 | |
| 773 | symsize = bfd_get_symtab_upper_bound (ibfd); |
| 774 | if (symsize < 0) |
| 775 | { |
| 776 | nonfatal (bfd_get_filename (ibfd)); |
| 777 | } |
| 778 | |
| 779 | osympp = isympp = (asymbol **) xmalloc (symsize); |
| 780 | symcount = bfd_canonicalize_symtab (ibfd, isympp); |
| 781 | if (symcount < 0) |
| 782 | { |
| 783 | nonfatal (bfd_get_filename (ibfd)); |
| 784 | } |
| 785 | |
| 786 | if (convert_debugging) |
| 787 | dhandle = read_debugging_info (ibfd, isympp, symcount); |
| 788 | |
| 789 | if (strip_symbols == strip_debug |
| 790 | || strip_symbols == strip_unneeded |
| 791 | || discard_locals != locals_undef |
| 792 | || strip_specific_list != NULL |
| 793 | || keep_specific_list != NULL |
| 794 | || privatize_specific_list != NULL |
| 795 | || weaken_specific_list != NULL |
| 796 | || sections_removed |
| 797 | || convert_debugging |
| 798 | || change_leading_char |
| 799 | || remove_leading_char |
| 800 | || weaken) |
| 801 | { |
| 802 | /* Mark symbols used in output relocations so that they |
| 803 | are kept, even if they are local labels or static symbols. |
| 804 | |
| 805 | Note we iterate over the input sections examining their |
| 806 | relocations since the relocations for the output sections |
| 807 | haven't been set yet. mark_symbols_used_in_relocations will |
| 808 | ignore input sections which have no corresponding output |
| 809 | section. */ |
| 810 | bfd_map_over_sections (ibfd, |
| 811 | mark_symbols_used_in_relocations, |
| 812 | (PTR)isympp); |
| 813 | osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *)); |
| 814 | symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount); |
| 815 | } |
| 816 | |
| 817 | if (convert_debugging && dhandle != NULL) |
| 818 | { |
| 819 | if (! write_debugging_info (obfd, dhandle, &symcount, &osympp)) |
| 820 | { |
| 821 | status = 1; |
| 822 | return; |
| 823 | } |
| 824 | } |
| 825 | } |
| 826 | |
| 827 | bfd_set_symtab (obfd, osympp, symcount); |
| 828 | |
| 829 | /* This has to happen after the symbol table has been set. */ |
| 830 | bfd_map_over_sections (ibfd, copy_section, (void *) obfd); |
| 831 | |
| 832 | if (add_sections != NULL) |
| 833 | { |
| 834 | struct section_add *padd; |
| 835 | |
| 836 | for (padd = add_sections; padd != NULL; padd = padd->next) |
| 837 | { |
| 838 | if (! bfd_set_section_contents (obfd, padd->section, |
| 839 | (PTR) padd->contents, |
| 840 | (file_ptr) 0, |
| 841 | (bfd_size_type) padd->size)) |
| 842 | nonfatal (bfd_get_filename (obfd)); |
| 843 | } |
| 844 | } |
| 845 | |
| 846 | if (gap_fill_set || pad_to_set) |
| 847 | { |
| 848 | bfd_byte *buf; |
| 849 | int c, i; |
| 850 | |
| 851 | /* Fill in the gaps. */ |
| 852 | |
| 853 | if (max_gap > 8192) |
| 854 | max_gap = 8192; |
| 855 | buf = (bfd_byte *) xmalloc (max_gap); |
| 856 | memset (buf, gap_fill, (size_t) max_gap); |
| 857 | |
| 858 | c = bfd_count_sections (obfd); |
| 859 | for (i = 0; i < c; i++) |
| 860 | { |
| 861 | if (gaps[i] != 0) |
| 862 | { |
| 863 | bfd_size_type left; |
| 864 | file_ptr off; |
| 865 | |
| 866 | left = gaps[i]; |
| 867 | off = bfd_section_size (obfd, osections[i]) - left; |
| 868 | while (left > 0) |
| 869 | { |
| 870 | bfd_size_type now; |
| 871 | |
| 872 | if (left > 8192) |
| 873 | now = 8192; |
| 874 | else |
| 875 | now = left; |
| 876 | if (! bfd_set_section_contents (obfd, osections[i], buf, |
| 877 | off, now)) |
| 878 | { |
| 879 | nonfatal (bfd_get_filename (obfd)); |
| 880 | } |
| 881 | left -= now; |
| 882 | off += now; |
| 883 | } |
| 884 | } |
| 885 | } |
| 886 | } |
| 887 | |
| 888 | /* Allow the BFD backend to copy any private data it understands |
| 889 | from the input BFD to the output BFD. This is done last to |
| 890 | permit the routine to look at the filtered symbol table, which is |
| 891 | important for the ECOFF code at least. */ |
| 892 | if (!bfd_copy_private_bfd_data (ibfd, obfd)) |
| 893 | { |
| 894 | fprintf (stderr, "%s: %s: error copying private BFD data: %s\n", |
| 895 | program_name, bfd_get_filename (obfd), |
| 896 | bfd_errmsg (bfd_get_error ())); |
| 897 | status = 1; |
| 898 | return; |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | /* Read each archive element in turn from IBFD, copy the |
| 903 | contents to temp file, and keep the temp file handle. */ |
| 904 | |
| 905 | static void |
| 906 | copy_archive (ibfd, obfd, output_target) |
| 907 | bfd *ibfd; |
| 908 | bfd *obfd; |
| 909 | const char *output_target; |
| 910 | { |
| 911 | struct name_list |
| 912 | { |
| 913 | struct name_list *next; |
| 914 | char *name; |
| 915 | bfd *obfd; |
| 916 | } *list, *l; |
| 917 | bfd **ptr = &obfd->archive_head; |
| 918 | bfd *this_element; |
| 919 | char *dir = make_tempname (bfd_get_filename (obfd)); |
| 920 | |
| 921 | /* Make a temp directory to hold the contents. */ |
| 922 | if (mkdir (dir, 0700) != 0) |
| 923 | { |
| 924 | fatal ("cannot mkdir %s for archive copying (error: %s)", |
| 925 | dir, strerror (errno)); |
| 926 | } |
| 927 | obfd->has_armap = ibfd->has_armap; |
| 928 | |
| 929 | list = NULL; |
| 930 | |
| 931 | this_element = bfd_openr_next_archived_file (ibfd, NULL); |
| 932 | while (this_element != (bfd *) NULL) |
| 933 | { |
| 934 | /* Create an output file for this member. */ |
| 935 | char *output_name = concat (dir, "/", bfd_get_filename(this_element), |
| 936 | (char *) NULL); |
| 937 | bfd *output_bfd = bfd_openw (output_name, output_target); |
| 938 | bfd *last_element; |
| 939 | |
| 940 | l = (struct name_list *) xmalloc (sizeof (struct name_list)); |
| 941 | l->name = output_name; |
| 942 | l->next = list; |
| 943 | list = l; |
| 944 | |
| 945 | if (output_bfd == (bfd *) NULL) |
| 946 | { |
| 947 | nonfatal (output_name); |
| 948 | } |
| 949 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 950 | { |
| 951 | nonfatal (bfd_get_filename (obfd)); |
| 952 | } |
| 953 | |
| 954 | if (bfd_check_format (this_element, bfd_object) == true) |
| 955 | { |
| 956 | copy_object (this_element, output_bfd); |
| 957 | } |
| 958 | |
| 959 | bfd_close (output_bfd); |
| 960 | |
| 961 | /* Open the newly output file and attach to our list. */ |
| 962 | output_bfd = bfd_openr (output_name, output_target); |
| 963 | |
| 964 | l->obfd = output_bfd; |
| 965 | |
| 966 | *ptr = output_bfd; |
| 967 | ptr = &output_bfd->next; |
| 968 | |
| 969 | last_element = this_element; |
| 970 | |
| 971 | this_element = bfd_openr_next_archived_file (ibfd, last_element); |
| 972 | |
| 973 | bfd_close (last_element); |
| 974 | } |
| 975 | *ptr = (bfd *) NULL; |
| 976 | |
| 977 | if (!bfd_close (obfd)) |
| 978 | { |
| 979 | nonfatal (bfd_get_filename (obfd)); |
| 980 | } |
| 981 | |
| 982 | if (!bfd_close (ibfd)) |
| 983 | { |
| 984 | nonfatal (bfd_get_filename (ibfd)); |
| 985 | } |
| 986 | |
| 987 | /* Delete all the files that we opened. */ |
| 988 | for (l = list; l != NULL; l = l->next) |
| 989 | { |
| 990 | bfd_close (l->obfd); |
| 991 | unlink (l->name); |
| 992 | } |
| 993 | rmdir (dir); |
| 994 | } |
| 995 | |
| 996 | /* The top-level control. */ |
| 997 | |
| 998 | static void |
| 999 | copy_file (input_filename, output_filename, input_target, output_target) |
| 1000 | const char *input_filename; |
| 1001 | const char *output_filename; |
| 1002 | const char *input_target; |
| 1003 | const char *output_target; |
| 1004 | { |
| 1005 | bfd *ibfd; |
| 1006 | char **matching; |
| 1007 | |
| 1008 | /* To allow us to do "strip *" without dying on the first |
| 1009 | non-object file, failures are nonfatal. */ |
| 1010 | |
| 1011 | ibfd = bfd_openr (input_filename, input_target); |
| 1012 | if (ibfd == NULL) |
| 1013 | { |
| 1014 | nonfatal (input_filename); |
| 1015 | } |
| 1016 | |
| 1017 | if (bfd_check_format (ibfd, bfd_archive)) |
| 1018 | { |
| 1019 | bfd *obfd; |
| 1020 | |
| 1021 | /* bfd_get_target does not return the correct value until |
| 1022 | bfd_check_format succeeds. */ |
| 1023 | if (output_target == NULL) |
| 1024 | output_target = bfd_get_target (ibfd); |
| 1025 | |
| 1026 | obfd = bfd_openw (output_filename, output_target); |
| 1027 | if (obfd == NULL) |
| 1028 | { |
| 1029 | nonfatal (output_filename); |
| 1030 | } |
| 1031 | copy_archive (ibfd, obfd, output_target); |
| 1032 | } |
| 1033 | else if (bfd_check_format_matches (ibfd, bfd_object, &matching)) |
| 1034 | { |
| 1035 | bfd *obfd; |
| 1036 | |
| 1037 | /* bfd_get_target does not return the correct value until |
| 1038 | bfd_check_format succeeds. */ |
| 1039 | if (output_target == NULL) |
| 1040 | output_target = bfd_get_target (ibfd); |
| 1041 | |
| 1042 | obfd = bfd_openw (output_filename, output_target); |
| 1043 | if (obfd == NULL) |
| 1044 | { |
| 1045 | nonfatal (output_filename); |
| 1046 | } |
| 1047 | |
| 1048 | copy_object (ibfd, obfd); |
| 1049 | |
| 1050 | if (!bfd_close (obfd)) |
| 1051 | { |
| 1052 | nonfatal (output_filename); |
| 1053 | } |
| 1054 | |
| 1055 | if (!bfd_close (ibfd)) |
| 1056 | { |
| 1057 | nonfatal (input_filename); |
| 1058 | } |
| 1059 | } |
| 1060 | else |
| 1061 | { |
| 1062 | bfd_nonfatal (input_filename); |
| 1063 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
| 1064 | { |
| 1065 | list_matching_formats (matching); |
| 1066 | free (matching); |
| 1067 | } |
| 1068 | status = 1; |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | /* Create a section in OBFD with the same name and attributes |
| 1073 | as ISECTION in IBFD. */ |
| 1074 | |
| 1075 | static void |
| 1076 | setup_section (ibfd, isection, obfdarg) |
| 1077 | bfd *ibfd; |
| 1078 | sec_ptr isection; |
| 1079 | PTR obfdarg; |
| 1080 | { |
| 1081 | bfd *obfd = (bfd *) obfdarg; |
| 1082 | struct section_list *p; |
| 1083 | sec_ptr osection; |
| 1084 | bfd_vma vma; |
| 1085 | bfd_vma lma; |
| 1086 | flagword flags; |
| 1087 | char *err; |
| 1088 | |
| 1089 | if ((bfd_get_section_flags (ibfd, isection) & SEC_DEBUGGING) != 0 |
| 1090 | && (strip_symbols == strip_debug |
| 1091 | || strip_symbols == strip_unneeded |
| 1092 | || strip_symbols == strip_all |
| 1093 | || discard_locals == locals_all |
| 1094 | || convert_debugging)) |
| 1095 | return; |
| 1096 | |
| 1097 | p = find_section_list (bfd_section_name (ibfd, isection), false); |
| 1098 | if (p != NULL) |
| 1099 | p->used = true; |
| 1100 | |
| 1101 | if (p != NULL && p->remove) |
| 1102 | return; |
| 1103 | |
| 1104 | osection = bfd_make_section_anyway (obfd, bfd_section_name (ibfd, isection)); |
| 1105 | if (osection == NULL) |
| 1106 | { |
| 1107 | err = "making"; |
| 1108 | goto loser; |
| 1109 | } |
| 1110 | |
| 1111 | if (!bfd_set_section_size (obfd, |
| 1112 | osection, |
| 1113 | bfd_section_size (ibfd, isection))) |
| 1114 | { |
| 1115 | err = "size"; |
| 1116 | goto loser; |
| 1117 | } |
| 1118 | |
| 1119 | vma = bfd_section_vma (ibfd, isection); |
| 1120 | if (p != NULL && p->adjust == adjust_vma) |
| 1121 | vma += p->val; |
| 1122 | else if (p != NULL && p->adjust == set_vma) |
| 1123 | vma = p->val; |
| 1124 | else |
| 1125 | vma += adjust_section_vma; |
| 1126 | if (! bfd_set_section_vma (obfd, osection, vma)) |
| 1127 | { |
| 1128 | err = "vma"; |
| 1129 | goto loser; |
| 1130 | } |
| 1131 | |
| 1132 | lma = isection->lma; |
| 1133 | if (p != NULL && p->adjust == adjust_vma) |
| 1134 | lma += p->val; |
| 1135 | else if (p != NULL && p->adjust == set_vma) |
| 1136 | lma = p->val; |
| 1137 | else |
| 1138 | lma += adjust_section_vma; |
| 1139 | osection->lma = lma; |
| 1140 | |
| 1141 | if (bfd_set_section_alignment (obfd, |
| 1142 | osection, |
| 1143 | bfd_section_alignment (ibfd, isection)) |
| 1144 | == false) |
| 1145 | { |
| 1146 | err = "alignment"; |
| 1147 | goto loser; |
| 1148 | } |
| 1149 | |
| 1150 | flags = bfd_get_section_flags (ibfd, isection); |
| 1151 | if (p != NULL && p->set_flags) |
| 1152 | flags = p->flags | (flags & SEC_HAS_CONTENTS); |
| 1153 | if (!bfd_set_section_flags (obfd, osection, flags)) |
| 1154 | { |
| 1155 | err = "flags"; |
| 1156 | goto loser; |
| 1157 | } |
| 1158 | |
| 1159 | /* This used to be mangle_section; we do here to avoid using |
| 1160 | bfd_get_section_by_name since some formats allow multiple |
| 1161 | sections with the same name. */ |
| 1162 | isection->output_section = osection; |
| 1163 | isection->output_offset = 0; |
| 1164 | |
| 1165 | /* Allow the BFD backend to copy any private data it understands |
| 1166 | from the input section to the output section. */ |
| 1167 | if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection)) |
| 1168 | { |
| 1169 | err = "private data"; |
| 1170 | goto loser; |
| 1171 | } |
| 1172 | |
| 1173 | /* All went well */ |
| 1174 | return; |
| 1175 | |
| 1176 | loser: |
| 1177 | fprintf (stderr, "%s: %s: section `%s': error in %s: %s\n", |
| 1178 | program_name, |
| 1179 | bfd_get_filename (ibfd), bfd_section_name (ibfd, isection), |
| 1180 | err, bfd_errmsg (bfd_get_error ())); |
| 1181 | status = 1; |
| 1182 | } |
| 1183 | |
| 1184 | /* Copy the data of input section ISECTION of IBFD |
| 1185 | to an output section with the same name in OBFD. |
| 1186 | If stripping then don't copy any relocation info. */ |
| 1187 | |
| 1188 | static void |
| 1189 | copy_section (ibfd, isection, obfdarg) |
| 1190 | bfd *ibfd; |
| 1191 | sec_ptr isection; |
| 1192 | PTR obfdarg; |
| 1193 | { |
| 1194 | bfd *obfd = (bfd *) obfdarg; |
| 1195 | struct section_list *p; |
| 1196 | arelent **relpp; |
| 1197 | long relcount; |
| 1198 | sec_ptr osection; |
| 1199 | bfd_size_type size; |
| 1200 | |
| 1201 | if ((bfd_get_section_flags (ibfd, isection) & SEC_DEBUGGING) != 0 |
| 1202 | && (strip_symbols == strip_debug |
| 1203 | || strip_symbols == strip_unneeded |
| 1204 | || strip_symbols == strip_all |
| 1205 | || discard_locals == locals_all |
| 1206 | || convert_debugging)) |
| 1207 | { |
| 1208 | return; |
| 1209 | } |
| 1210 | |
| 1211 | p = find_section_list (bfd_section_name (ibfd, isection), false); |
| 1212 | |
| 1213 | if (p != NULL && p->remove) |
| 1214 | return; |
| 1215 | |
| 1216 | osection = isection->output_section; |
| 1217 | size = bfd_get_section_size_before_reloc (isection); |
| 1218 | |
| 1219 | if (size == 0 || osection == 0) |
| 1220 | return; |
| 1221 | |
| 1222 | if (strip_symbols == strip_all) |
| 1223 | bfd_set_reloc (obfd, osection, (arelent **) NULL, 0); |
| 1224 | else |
| 1225 | { |
| 1226 | long relsize; |
| 1227 | |
| 1228 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| 1229 | if (relsize < 0) |
| 1230 | { |
| 1231 | nonfatal (bfd_get_filename (ibfd)); |
| 1232 | } |
| 1233 | if (relsize == 0) |
| 1234 | bfd_set_reloc (obfd, osection, (arelent **) NULL, 0); |
| 1235 | else |
| 1236 | { |
| 1237 | relpp = (arelent **) xmalloc (relsize); |
| 1238 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp); |
| 1239 | if (relcount < 0) |
| 1240 | { |
| 1241 | nonfatal (bfd_get_filename (ibfd)); |
| 1242 | } |
| 1243 | bfd_set_reloc (obfd, osection, relpp, relcount); |
| 1244 | } |
| 1245 | } |
| 1246 | |
| 1247 | isection->_cooked_size = isection->_raw_size; |
| 1248 | isection->reloc_done = true; |
| 1249 | |
| 1250 | if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS) |
| 1251 | { |
| 1252 | PTR memhunk = (PTR) xmalloc ((unsigned) size); |
| 1253 | |
| 1254 | if (!bfd_get_section_contents (ibfd, isection, memhunk, (file_ptr) 0, |
| 1255 | size)) |
| 1256 | { |
| 1257 | nonfatal (bfd_get_filename (ibfd)); |
| 1258 | } |
| 1259 | |
| 1260 | if (copy_byte >= 0) |
| 1261 | { |
| 1262 | filter_bytes (memhunk, &size); |
| 1263 | /* The section has gotten smaller. */ |
| 1264 | if (!bfd_set_section_size (obfd, osection, size)) |
| 1265 | nonfatal (bfd_get_filename (obfd)); |
| 1266 | } |
| 1267 | |
| 1268 | if (!bfd_set_section_contents (obfd, osection, memhunk, (file_ptr) 0, |
| 1269 | size)) |
| 1270 | { |
| 1271 | nonfatal (bfd_get_filename (obfd)); |
| 1272 | } |
| 1273 | free (memhunk); |
| 1274 | } |
| 1275 | } |
| 1276 | |
| 1277 | /* Get all the sections. This is used when --gap-fill or --pad-to is |
| 1278 | used. */ |
| 1279 | |
| 1280 | static void |
| 1281 | get_sections (obfd, osection, secppparg) |
| 1282 | bfd *obfd; |
| 1283 | asection *osection; |
| 1284 | PTR secppparg; |
| 1285 | { |
| 1286 | asection ***secppp = (asection ***) secppparg; |
| 1287 | |
| 1288 | **secppp = osection; |
| 1289 | ++(*secppp); |
| 1290 | } |
| 1291 | |
| 1292 | /* Sort sections by VMA. This is called via qsort, and is used when |
| 1293 | --gap-fill or --pad-to is used. We force non loadable or empty |
| 1294 | sections to the front, where they are easier to ignore. */ |
| 1295 | |
| 1296 | static int |
| 1297 | compare_section_vma (arg1, arg2) |
| 1298 | const PTR arg1; |
| 1299 | const PTR arg2; |
| 1300 | { |
| 1301 | const asection **sec1 = (const asection **) arg1; |
| 1302 | const asection **sec2 = (const asection **) arg2; |
| 1303 | flagword flags1, flags2; |
| 1304 | |
| 1305 | /* Sort non loadable sections to the front. */ |
| 1306 | flags1 = (*sec1)->flags; |
| 1307 | flags2 = (*sec2)->flags; |
| 1308 | if ((flags1 & SEC_HAS_CONTENTS) == 0 |
| 1309 | || (flags1 & SEC_LOAD) == 0) |
| 1310 | { |
| 1311 | if ((flags2 & SEC_HAS_CONTENTS) != 0 |
| 1312 | && (flags2 & SEC_LOAD) != 0) |
| 1313 | return -1; |
| 1314 | } |
| 1315 | else |
| 1316 | { |
| 1317 | if ((flags2 & SEC_HAS_CONTENTS) == 0 |
| 1318 | || (flags2 & SEC_LOAD) == 0) |
| 1319 | return 1; |
| 1320 | } |
| 1321 | |
| 1322 | /* Sort sections by VMA. */ |
| 1323 | if ((*sec1)->vma > (*sec2)->vma) |
| 1324 | return 1; |
| 1325 | else if ((*sec1)->vma < (*sec2)->vma) |
| 1326 | return -1; |
| 1327 | |
| 1328 | /* Sort sections with the same VMA by size. */ |
| 1329 | if ((*sec1)->_raw_size > (*sec2)->_raw_size) |
| 1330 | return 1; |
| 1331 | else if ((*sec1)->_raw_size < (*sec2)->_raw_size) |
| 1332 | return -1; |
| 1333 | |
| 1334 | return 0; |
| 1335 | } |
| 1336 | |
| 1337 | /* Mark all the symbols which will be used in output relocations with |
| 1338 | the BSF_KEEP flag so that those symbols will not be stripped. |
| 1339 | |
| 1340 | Ignore relocations which will not appear in the output file. */ |
| 1341 | |
| 1342 | static void |
| 1343 | mark_symbols_used_in_relocations (ibfd, isection, symbolsarg) |
| 1344 | bfd *ibfd; |
| 1345 | sec_ptr isection; |
| 1346 | PTR symbolsarg; |
| 1347 | { |
| 1348 | asymbol **symbols = (asymbol **) symbolsarg; |
| 1349 | long relsize; |
| 1350 | arelent **relpp; |
| 1351 | long relcount, i; |
| 1352 | |
| 1353 | /* Ignore an input section with no corresponding output section. */ |
| 1354 | if (isection->output_section == NULL) |
| 1355 | return; |
| 1356 | |
| 1357 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| 1358 | if (relsize < 0) |
| 1359 | bfd_fatal (bfd_get_filename (ibfd)); |
| 1360 | |
| 1361 | if (relsize == 0) |
| 1362 | return; |
| 1363 | |
| 1364 | relpp = (arelent **) xmalloc (relsize); |
| 1365 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols); |
| 1366 | if (relcount < 0) |
| 1367 | bfd_fatal (bfd_get_filename (ibfd)); |
| 1368 | |
| 1369 | /* Examine each symbol used in a relocation. If it's not one of the |
| 1370 | special bfd section symbols, then mark it with BSF_KEEP. */ |
| 1371 | for (i = 0; i < relcount; i++) |
| 1372 | { |
| 1373 | if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol |
| 1374 | && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol |
| 1375 | && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol) |
| 1376 | (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP; |
| 1377 | } |
| 1378 | |
| 1379 | if (relpp != NULL) |
| 1380 | free (relpp); |
| 1381 | } |
| 1382 | |
| 1383 | /* Write out debugging information. */ |
| 1384 | |
| 1385 | static boolean |
| 1386 | write_debugging_info (obfd, dhandle, symcountp, symppp) |
| 1387 | bfd *obfd; |
| 1388 | PTR dhandle; |
| 1389 | long *symcountp; |
| 1390 | asymbol ***symppp; |
| 1391 | { |
| 1392 | if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour) |
| 1393 | return write_ieee_debugging_info (obfd, dhandle); |
| 1394 | |
| 1395 | if (bfd_get_flavour (obfd) == bfd_target_coff_flavour |
| 1396 | || bfd_get_flavour (obfd) == bfd_target_elf_flavour) |
| 1397 | { |
| 1398 | bfd_byte *syms, *strings; |
| 1399 | bfd_size_type symsize, stringsize; |
| 1400 | asection *stabsec, *stabstrsec; |
| 1401 | |
| 1402 | if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms, |
| 1403 | &symsize, &strings, |
| 1404 | &stringsize)) |
| 1405 | return false; |
| 1406 | |
| 1407 | stabsec = bfd_make_section (obfd, ".stab"); |
| 1408 | stabstrsec = bfd_make_section (obfd, ".stabstr"); |
| 1409 | if (stabsec == NULL |
| 1410 | || stabstrsec == NULL |
| 1411 | || ! bfd_set_section_size (obfd, stabsec, symsize) |
| 1412 | || ! bfd_set_section_size (obfd, stabstrsec, stringsize) |
| 1413 | || ! bfd_set_section_alignment (obfd, stabsec, 2) |
| 1414 | || ! bfd_set_section_alignment (obfd, stabstrsec, 0) |
| 1415 | || ! bfd_set_section_flags (obfd, stabsec, |
| 1416 | (SEC_HAS_CONTENTS |
| 1417 | | SEC_READONLY |
| 1418 | | SEC_DEBUGGING)) |
| 1419 | || ! bfd_set_section_flags (obfd, stabstrsec, |
| 1420 | (SEC_HAS_CONTENTS |
| 1421 | | SEC_READONLY |
| 1422 | | SEC_DEBUGGING))) |
| 1423 | { |
| 1424 | fprintf (stderr, "%s: can't create debugging section: %s\n", |
| 1425 | bfd_get_filename (obfd), bfd_errmsg (bfd_get_error ())); |
| 1426 | return false; |
| 1427 | } |
| 1428 | |
| 1429 | /* We can get away with setting the section contents now because |
| 1430 | the next thing the caller is going to do is copy over the |
| 1431 | real sections. We may someday have to split the contents |
| 1432 | setting out of this function. */ |
| 1433 | if (! bfd_set_section_contents (obfd, stabsec, syms, (file_ptr) 0, |
| 1434 | symsize) |
| 1435 | || ! bfd_set_section_contents (obfd, stabstrsec, strings, |
| 1436 | (file_ptr) 0, stringsize)) |
| 1437 | { |
| 1438 | fprintf (stderr, "%s: can't set debugging section contents: %s\n", |
| 1439 | bfd_get_filename (obfd), bfd_errmsg (bfd_get_error ())); |
| 1440 | return false; |
| 1441 | } |
| 1442 | |
| 1443 | return true; |
| 1444 | } |
| 1445 | |
| 1446 | fprintf (stderr, |
| 1447 | "%s: don't know how to write debugging information for %s\n", |
| 1448 | bfd_get_filename (obfd), bfd_get_target (obfd)); |
| 1449 | return false; |
| 1450 | } |
| 1451 | |
| 1452 | /* The number of bytes to copy at once. */ |
| 1453 | #define COPY_BUF 8192 |
| 1454 | |
| 1455 | /* Copy file FROM to file TO, performing no translations. |
| 1456 | Return 0 if ok, -1 if error. */ |
| 1457 | |
| 1458 | static int |
| 1459 | simple_copy (from, to) |
| 1460 | const char *from; |
| 1461 | const char *to; |
| 1462 | { |
| 1463 | int fromfd, tofd, nread; |
| 1464 | int saved; |
| 1465 | char buf[COPY_BUF]; |
| 1466 | |
| 1467 | fromfd = open (from, O_RDONLY); |
| 1468 | if (fromfd < 0) |
| 1469 | return -1; |
| 1470 | tofd = creat (to, 0777); |
| 1471 | if (tofd < 0) |
| 1472 | { |
| 1473 | saved = errno; |
| 1474 | close (fromfd); |
| 1475 | errno = saved; |
| 1476 | return -1; |
| 1477 | } |
| 1478 | while ((nread = read (fromfd, buf, sizeof buf)) > 0) |
| 1479 | { |
| 1480 | if (write (tofd, buf, nread) != nread) |
| 1481 | { |
| 1482 | saved = errno; |
| 1483 | close (fromfd); |
| 1484 | close (tofd); |
| 1485 | errno = saved; |
| 1486 | return -1; |
| 1487 | } |
| 1488 | } |
| 1489 | saved = errno; |
| 1490 | close (fromfd); |
| 1491 | close (tofd); |
| 1492 | if (nread < 0) |
| 1493 | { |
| 1494 | errno = saved; |
| 1495 | return -1; |
| 1496 | } |
| 1497 | return 0; |
| 1498 | } |
| 1499 | |
| 1500 | #ifndef S_ISLNK |
| 1501 | #ifdef S_IFLNK |
| 1502 | #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) |
| 1503 | #else |
| 1504 | #define S_ISLNK(m) 0 |
| 1505 | #define lstat stat |
| 1506 | #endif |
| 1507 | #endif |
| 1508 | |
| 1509 | /* Rename FROM to TO, copying if TO is a link. |
| 1510 | Assumes that TO already exists, because FROM is a temp file. |
| 1511 | Return 0 if ok, -1 if error. */ |
| 1512 | |
| 1513 | static int |
| 1514 | smart_rename (from, to) |
| 1515 | const char *from; |
| 1516 | const char *to; |
| 1517 | { |
| 1518 | struct stat s; |
| 1519 | int ret = 0; |
| 1520 | |
| 1521 | if (lstat (to, &s)) |
| 1522 | return -1; |
| 1523 | |
| 1524 | /* Use rename only if TO is not a symbolic link and has |
| 1525 | only one hard link. */ |
| 1526 | if (!S_ISLNK (s.st_mode) && s.st_nlink == 1) |
| 1527 | { |
| 1528 | ret = rename (from, to); |
| 1529 | if (ret == 0) |
| 1530 | { |
| 1531 | /* Try to preserve the permission bits and ownership of TO. |
| 1532 | First get the mode right except for the setuid bit. Then |
| 1533 | change the ownership. Then fix the setuid bit. We do |
| 1534 | the chmod before the chown because if the chown succeeds, |
| 1535 | and we are a normal user, we won't be able to do the |
| 1536 | chmod afterward. We don't bother to fix the setuid bit |
| 1537 | first because that might introduce a fleeting security |
| 1538 | problem, and because the chown will clear the setuid bit |
| 1539 | anyhow. We only fix the setuid bit if the chown |
| 1540 | succeeds, because we don't want to introduce an |
| 1541 | unexpected setuid file owned by the user running objcopy. */ |
| 1542 | chmod (to, s.st_mode & 0777); |
| 1543 | if (chown (to, s.st_uid, s.st_gid) >= 0) |
| 1544 | chmod (to, s.st_mode & 07777); |
| 1545 | } |
| 1546 | else |
| 1547 | { |
| 1548 | /* We have to clean up here. */ |
| 1549 | int saved = errno; |
| 1550 | fprintf (stderr, "%s: %s: ", program_name, to); |
| 1551 | errno = saved; |
| 1552 | perror ("rename"); |
| 1553 | unlink (from); |
| 1554 | } |
| 1555 | } |
| 1556 | else |
| 1557 | { |
| 1558 | ret = simple_copy (from, to); |
| 1559 | if (ret != 0) |
| 1560 | { |
| 1561 | int saved = errno; |
| 1562 | fprintf (stderr, "%s: %s: ", program_name, to); |
| 1563 | errno = saved; |
| 1564 | perror ("simple_copy"); |
| 1565 | } |
| 1566 | unlink (from); |
| 1567 | } |
| 1568 | return ret; |
| 1569 | } |
| 1570 | |
| 1571 | /* Set the times of the file DESTINATION to be the same as those in |
| 1572 | STATBUF. */ |
| 1573 | |
| 1574 | static void |
| 1575 | set_times (destination, statbuf) |
| 1576 | const char *destination; |
| 1577 | const struct stat *statbuf; |
| 1578 | { |
| 1579 | int result; |
| 1580 | |
| 1581 | { |
| 1582 | #ifdef HAVE_GOOD_UTIME_H |
| 1583 | struct utimbuf tb; |
| 1584 | |
| 1585 | tb.actime = statbuf->st_atime; |
| 1586 | tb.modtime = statbuf->st_mtime; |
| 1587 | result = utime (destination, &tb); |
| 1588 | #else /* ! HAVE_GOOD_UTIME_H */ |
| 1589 | #ifndef HAVE_UTIMES |
| 1590 | long tb[2]; |
| 1591 | |
| 1592 | tb[0] = statbuf->st_atime; |
| 1593 | tb[1] = statbuf->st_mtime; |
| 1594 | result = utime (destination, tb); |
| 1595 | #else /* HAVE_UTIMES */ |
| 1596 | struct timeval tv[2]; |
| 1597 | |
| 1598 | tv[0].tv_sec = statbuf->st_atime; |
| 1599 | tv[0].tv_usec = 0; |
| 1600 | tv[1].tv_sec = statbuf->st_mtime; |
| 1601 | tv[1].tv_usec = 0; |
| 1602 | result = utimes (destination, tv); |
| 1603 | #endif /* HAVE_UTIMES */ |
| 1604 | #endif /* ! HAVE_GOOD_UTIME_H */ |
| 1605 | } |
| 1606 | |
| 1607 | if (result != 0) |
| 1608 | { |
| 1609 | fprintf (stderr, "%s: ", destination); |
| 1610 | perror ("can not set time"); |
| 1611 | } |
| 1612 | } |
| 1613 | |
| 1614 | static int |
| 1615 | strip_main (argc, argv) |
| 1616 | int argc; |
| 1617 | char *argv[]; |
| 1618 | { |
| 1619 | char *input_target = NULL, *output_target = NULL; |
| 1620 | boolean show_version = false; |
| 1621 | boolean preserve_dates = false; |
| 1622 | int c, i; |
| 1623 | struct section_list *p; |
| 1624 | char *output_file = NULL; |
| 1625 | |
| 1626 | while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpgxXVv", |
| 1627 | strip_options, (int *) 0)) != EOF) |
| 1628 | { |
| 1629 | switch (c) |
| 1630 | { |
| 1631 | case 'I': |
| 1632 | input_target = optarg; |
| 1633 | break; |
| 1634 | case 'O': |
| 1635 | output_target = optarg; |
| 1636 | break; |
| 1637 | case 'F': |
| 1638 | input_target = output_target = optarg; |
| 1639 | break; |
| 1640 | case 'R': |
| 1641 | p = find_section_list (optarg, true); |
| 1642 | p->remove = true; |
| 1643 | sections_removed = true; |
| 1644 | break; |
| 1645 | case 's': |
| 1646 | strip_symbols = strip_all; |
| 1647 | break; |
| 1648 | case 'S': |
| 1649 | case 'g': |
| 1650 | strip_symbols = strip_debug; |
| 1651 | break; |
| 1652 | case OPTION_STRIP_UNNEEDED: |
| 1653 | strip_symbols = strip_unneeded; |
| 1654 | break; |
| 1655 | case 'K': |
| 1656 | add_specific_symbol (optarg, &keep_specific_list); |
| 1657 | break; |
| 1658 | case 'N': |
| 1659 | add_specific_symbol (optarg, &strip_specific_list); |
| 1660 | break; |
| 1661 | case 'o': |
| 1662 | output_file = optarg; |
| 1663 | break; |
| 1664 | case 'p': |
| 1665 | preserve_dates = true; |
| 1666 | break; |
| 1667 | case 'x': |
| 1668 | discard_locals = locals_all; |
| 1669 | break; |
| 1670 | case 'X': |
| 1671 | discard_locals = locals_start_L; |
| 1672 | break; |
| 1673 | case 'v': |
| 1674 | verbose = true; |
| 1675 | break; |
| 1676 | case 'V': |
| 1677 | show_version = true; |
| 1678 | break; |
| 1679 | case 0: |
| 1680 | break; /* we've been given a long option */ |
| 1681 | case 'h': |
| 1682 | strip_usage (stdout, 0); |
| 1683 | default: |
| 1684 | strip_usage (stderr, 1); |
| 1685 | } |
| 1686 | } |
| 1687 | |
| 1688 | if (show_version) |
| 1689 | print_version ("strip"); |
| 1690 | |
| 1691 | /* Default is to strip all symbols. */ |
| 1692 | if (strip_symbols == strip_undef |
| 1693 | && discard_locals == locals_undef |
| 1694 | && strip_specific_list == NULL) |
| 1695 | strip_symbols = strip_all; |
| 1696 | |
| 1697 | if (output_target == (char *) NULL) |
| 1698 | output_target = input_target; |
| 1699 | |
| 1700 | i = optind; |
| 1701 | if (i == argc |
| 1702 | || (output_file != NULL && (i + 1) < argc)) |
| 1703 | strip_usage (stderr, 1); |
| 1704 | |
| 1705 | for (; i < argc; i++) |
| 1706 | { |
| 1707 | int hold_status = status; |
| 1708 | struct stat statbuf; |
| 1709 | char *tmpname; |
| 1710 | |
| 1711 | if (preserve_dates) |
| 1712 | { |
| 1713 | if (stat (argv[i], &statbuf) < 0) |
| 1714 | { |
| 1715 | fprintf (stderr, "%s: ", argv[i]); |
| 1716 | perror ("cannot stat"); |
| 1717 | continue; |
| 1718 | } |
| 1719 | } |
| 1720 | |
| 1721 | if (output_file != NULL) |
| 1722 | tmpname = output_file; |
| 1723 | else |
| 1724 | tmpname = make_tempname (argv[i]); |
| 1725 | status = 0; |
| 1726 | |
| 1727 | copy_file (argv[i], tmpname, input_target, output_target); |
| 1728 | if (status == 0) |
| 1729 | { |
| 1730 | if (preserve_dates) |
| 1731 | set_times (tmpname, &statbuf); |
| 1732 | if (output_file == NULL) |
| 1733 | smart_rename (tmpname, argv[i]); |
| 1734 | status = hold_status; |
| 1735 | } |
| 1736 | else |
| 1737 | unlink (tmpname); |
| 1738 | if (output_file == NULL) |
| 1739 | free (tmpname); |
| 1740 | } |
| 1741 | |
| 1742 | return 0; |
| 1743 | } |
| 1744 | |
| 1745 | static int |
| 1746 | copy_main (argc, argv) |
| 1747 | int argc; |
| 1748 | char *argv[]; |
| 1749 | { |
| 1750 | char *input_filename = NULL, *output_filename = NULL; |
| 1751 | char *input_target = NULL, *output_target = NULL; |
| 1752 | boolean show_version = false; |
| 1753 | boolean adjust_warn = true; |
| 1754 | boolean preserve_dates = false; |
| 1755 | int c; |
| 1756 | struct section_list *p; |
| 1757 | struct stat statbuf; |
| 1758 | |
| 1759 | while ((c = getopt_long (argc, argv, "b:i:I:K:N:s:O:d:F:P:R:SpgxXVvW:", |
| 1760 | copy_options, (int *) 0)) != EOF) |
| 1761 | { |
| 1762 | switch (c) |
| 1763 | { |
| 1764 | case 'b': |
| 1765 | copy_byte = atoi(optarg); |
| 1766 | if (copy_byte < 0) |
| 1767 | { |
| 1768 | fprintf (stderr, "%s: byte number must be non-negative\n", |
| 1769 | program_name); |
| 1770 | exit (1); |
| 1771 | } |
| 1772 | break; |
| 1773 | case 'i': |
| 1774 | interleave = atoi(optarg); |
| 1775 | if (interleave < 1) |
| 1776 | { |
| 1777 | fprintf(stderr, "%s: interleave must be positive\n", |
| 1778 | program_name); |
| 1779 | exit (1); |
| 1780 | } |
| 1781 | break; |
| 1782 | case 'I': |
| 1783 | case 's': /* "source" - 'I' is preferred */ |
| 1784 | input_target = optarg; |
| 1785 | break; |
| 1786 | case 'O': |
| 1787 | case 'd': /* "destination" - 'O' is preferred */ |
| 1788 | output_target = optarg; |
| 1789 | break; |
| 1790 | case 'F': |
| 1791 | input_target = output_target = optarg; |
| 1792 | break; |
| 1793 | case 'R': |
| 1794 | p = find_section_list (optarg, true); |
| 1795 | p->remove = true; |
| 1796 | sections_removed = true; |
| 1797 | break; |
| 1798 | case 'S': |
| 1799 | strip_symbols = strip_all; |
| 1800 | break; |
| 1801 | case 'g': |
| 1802 | strip_symbols = strip_debug; |
| 1803 | break; |
| 1804 | case OPTION_STRIP_UNNEEDED: |
| 1805 | strip_symbols = strip_unneeded; |
| 1806 | break; |
| 1807 | case 'K': |
| 1808 | add_specific_symbol (optarg, &keep_specific_list); |
| 1809 | break; |
| 1810 | case 'N': |
| 1811 | add_specific_symbol (optarg, &strip_specific_list); |
| 1812 | break; |
| 1813 | case 'P': |
| 1814 | add_specific_symbol (optarg, &privatize_specific_list); |
| 1815 | break; |
| 1816 | case 'W': |
| 1817 | add_specific_symbol (optarg, &weaken_specific_list); |
| 1818 | break; |
| 1819 | case 'p': |
| 1820 | preserve_dates = true; |
| 1821 | break; |
| 1822 | case 'x': |
| 1823 | discard_locals = locals_all; |
| 1824 | break; |
| 1825 | case 'X': |
| 1826 | discard_locals = locals_start_L; |
| 1827 | break; |
| 1828 | case 'v': |
| 1829 | verbose = true; |
| 1830 | break; |
| 1831 | case 'V': |
| 1832 | show_version = true; |
| 1833 | break; |
| 1834 | case OPTION_WEAKEN: |
| 1835 | weaken = true; |
| 1836 | break; |
| 1837 | case OPTION_ADD_SECTION: |
| 1838 | { |
| 1839 | const char *s; |
| 1840 | struct stat st; |
| 1841 | struct section_add *pa; |
| 1842 | int len; |
| 1843 | char *name; |
| 1844 | FILE *f; |
| 1845 | |
| 1846 | s = strchr (optarg, '='); |
| 1847 | if (s == NULL) |
| 1848 | { |
| 1849 | fprintf (stderr, |
| 1850 | "%s: bad format for --add-section NAME=FILENAME\n", |
| 1851 | program_name); |
| 1852 | exit (1); |
| 1853 | } |
| 1854 | |
| 1855 | if (stat (s + 1, &st) < 0) |
| 1856 | { |
| 1857 | fprintf (stderr, "%s: ", program_name); |
| 1858 | perror (s + 1); |
| 1859 | exit (1); |
| 1860 | } |
| 1861 | |
| 1862 | pa = (struct section_add *) xmalloc (sizeof (struct section_add)); |
| 1863 | |
| 1864 | len = s - optarg; |
| 1865 | name = (char *) xmalloc (len + 1); |
| 1866 | strncpy (name, optarg, len); |
| 1867 | name[len] = '\0'; |
| 1868 | pa->name = name; |
| 1869 | |
| 1870 | pa->filename = s + 1; |
| 1871 | |
| 1872 | pa->size = st.st_size; |
| 1873 | |
| 1874 | pa->contents = (bfd_byte *) xmalloc (pa->size); |
| 1875 | f = fopen (pa->filename, FOPEN_RB); |
| 1876 | if (f == NULL) |
| 1877 | { |
| 1878 | fprintf (stderr, "%s: ", program_name); |
| 1879 | perror (pa->filename); |
| 1880 | exit (1); |
| 1881 | } |
| 1882 | if (fread (pa->contents, 1, pa->size, f) == 0 |
| 1883 | || ferror (f)) |
| 1884 | { |
| 1885 | fprintf (stderr, "%s: %s: fread failed\n", |
| 1886 | program_name, pa->filename); |
| 1887 | exit (1); |
| 1888 | } |
| 1889 | fclose (f); |
| 1890 | |
| 1891 | pa->next = add_sections; |
| 1892 | add_sections = pa; |
| 1893 | } |
| 1894 | break; |
| 1895 | case OPTION_ADJUST_START: |
| 1896 | adjust_start = parse_vma (optarg, "--adjust-start"); |
| 1897 | break; |
| 1898 | case OPTION_ADJUST_SECTION_VMA: |
| 1899 | { |
| 1900 | const char *s; |
| 1901 | int len; |
| 1902 | char *name; |
| 1903 | |
| 1904 | s = strchr (optarg, '='); |
| 1905 | if (s == NULL) |
| 1906 | { |
| 1907 | s = strchr (optarg, '+'); |
| 1908 | if (s == NULL) |
| 1909 | { |
| 1910 | s = strchr (optarg, '-'); |
| 1911 | if (s == NULL) |
| 1912 | { |
| 1913 | fprintf (stderr, |
| 1914 | "%s: bad format for --adjust-section-vma\n", |
| 1915 | program_name); |
| 1916 | exit (1); |
| 1917 | } |
| 1918 | } |
| 1919 | } |
| 1920 | |
| 1921 | len = s - optarg; |
| 1922 | name = (char *) xmalloc (len + 1); |
| 1923 | strncpy (name, optarg, len); |
| 1924 | name[len] = '\0'; |
| 1925 | |
| 1926 | p = find_section_list (name, true); |
| 1927 | |
| 1928 | p->val = parse_vma (s + 1, "--adjust-section-vma"); |
| 1929 | |
| 1930 | if (*s == '=') |
| 1931 | p->adjust = set_vma; |
| 1932 | else |
| 1933 | { |
| 1934 | p->adjust = adjust_vma; |
| 1935 | if (*s == '-') |
| 1936 | p->val = - p->val; |
| 1937 | } |
| 1938 | } |
| 1939 | break; |
| 1940 | case OPTION_ADJUST_VMA: |
| 1941 | adjust_section_vma = parse_vma (optarg, "--adjust-vma"); |
| 1942 | adjust_start = adjust_section_vma; |
| 1943 | break; |
| 1944 | case OPTION_ADJUST_WARNINGS: |
| 1945 | adjust_warn = true; |
| 1946 | break; |
| 1947 | case OPTION_CHANGE_LEADING_CHAR: |
| 1948 | change_leading_char = true; |
| 1949 | break; |
| 1950 | case OPTION_DEBUGGING: |
| 1951 | convert_debugging = true; |
| 1952 | break; |
| 1953 | case OPTION_GAP_FILL: |
| 1954 | { |
| 1955 | bfd_vma gap_fill_vma; |
| 1956 | |
| 1957 | gap_fill_vma = parse_vma (optarg, "--gap-fill"); |
| 1958 | gap_fill = (bfd_byte) gap_fill_vma; |
| 1959 | if ((bfd_vma) gap_fill != gap_fill_vma) |
| 1960 | { |
| 1961 | fprintf (stderr, "%s: warning: truncating gap-fill from 0x", |
| 1962 | program_name); |
| 1963 | fprintf_vma (stderr, gap_fill_vma); |
| 1964 | fprintf (stderr, "to 0x%x\n", (unsigned int) gap_fill); |
| 1965 | } |
| 1966 | gap_fill_set = true; |
| 1967 | } |
| 1968 | break; |
| 1969 | case OPTION_NO_ADJUST_WARNINGS: |
| 1970 | adjust_warn = false; |
| 1971 | break; |
| 1972 | case OPTION_PAD_TO: |
| 1973 | pad_to = parse_vma (optarg, "--pad-to"); |
| 1974 | pad_to_set = true; |
| 1975 | break; |
| 1976 | case OPTION_REMOVE_LEADING_CHAR: |
| 1977 | remove_leading_char = true; |
| 1978 | break; |
| 1979 | case OPTION_SET_SECTION_FLAGS: |
| 1980 | { |
| 1981 | const char *s; |
| 1982 | int len; |
| 1983 | char *name; |
| 1984 | |
| 1985 | s = strchr (optarg, '='); |
| 1986 | if (s == NULL) |
| 1987 | { |
| 1988 | fprintf (stderr, "%s: bad format for --set-section-flags\n", |
| 1989 | program_name); |
| 1990 | exit (1); |
| 1991 | } |
| 1992 | |
| 1993 | len = s - optarg; |
| 1994 | name = (char *) xmalloc (len + 1); |
| 1995 | strncpy (name, optarg, len); |
| 1996 | name[len] = '\0'; |
| 1997 | |
| 1998 | p = find_section_list (name, true); |
| 1999 | |
| 2000 | p->set_flags = true; |
| 2001 | p->flags = parse_flags (s + 1); |
| 2002 | } |
| 2003 | break; |
| 2004 | case OPTION_SET_START: |
| 2005 | set_start = parse_vma (optarg, "--set-start"); |
| 2006 | set_start_set = true; |
| 2007 | break; |
| 2008 | case 0: |
| 2009 | break; /* we've been given a long option */ |
| 2010 | case 'h': |
| 2011 | copy_usage (stdout, 0); |
| 2012 | default: |
| 2013 | copy_usage (stderr, 1); |
| 2014 | } |
| 2015 | } |
| 2016 | |
| 2017 | if (show_version) |
| 2018 | print_version ("objcopy"); |
| 2019 | |
| 2020 | if (copy_byte >= interleave) |
| 2021 | { |
| 2022 | fprintf (stderr, "%s: byte number must be less than interleave\n", |
| 2023 | program_name); |
| 2024 | exit (1); |
| 2025 | } |
| 2026 | |
| 2027 | if (optind == argc || optind + 2 < argc) |
| 2028 | copy_usage (stderr, 1); |
| 2029 | |
| 2030 | input_filename = argv[optind]; |
| 2031 | if (optind + 1 < argc) |
| 2032 | output_filename = argv[optind + 1]; |
| 2033 | |
| 2034 | /* Default is to strip no symbols. */ |
| 2035 | if (strip_symbols == strip_undef && discard_locals == locals_undef) |
| 2036 | strip_symbols = strip_none; |
| 2037 | |
| 2038 | if (output_target == (char *) NULL) |
| 2039 | output_target = input_target; |
| 2040 | |
| 2041 | if (preserve_dates) |
| 2042 | { |
| 2043 | if (stat (input_filename, &statbuf) < 0) |
| 2044 | { |
| 2045 | fprintf (stderr, "%s: ", input_filename); |
| 2046 | perror ("cannot stat"); |
| 2047 | exit (1); |
| 2048 | } |
| 2049 | } |
| 2050 | |
| 2051 | /* If there is no destination file then create a temp and rename |
| 2052 | the result into the input. */ |
| 2053 | |
| 2054 | if (output_filename == (char *) NULL) |
| 2055 | { |
| 2056 | char *tmpname = make_tempname (input_filename); |
| 2057 | |
| 2058 | copy_file (input_filename, tmpname, input_target, output_target); |
| 2059 | if (status == 0) |
| 2060 | { |
| 2061 | if (preserve_dates) |
| 2062 | set_times (tmpname, &statbuf); |
| 2063 | smart_rename (tmpname, input_filename); |
| 2064 | } |
| 2065 | else |
| 2066 | unlink (tmpname); |
| 2067 | } |
| 2068 | else |
| 2069 | { |
| 2070 | copy_file (input_filename, output_filename, input_target, output_target); |
| 2071 | if (status == 0 && preserve_dates) |
| 2072 | set_times (output_filename, &statbuf); |
| 2073 | } |
| 2074 | |
| 2075 | if (adjust_warn) |
| 2076 | { |
| 2077 | for (p = adjust_sections; p != NULL; p = p->next) |
| 2078 | { |
| 2079 | if (! p->used && p->adjust != ignore_vma) |
| 2080 | { |
| 2081 | fprintf (stderr, "%s: warning: --adjust-section-vma %s%c0x", |
| 2082 | program_name, p->name, |
| 2083 | p->adjust == set_vma ? '=' : '+'); |
| 2084 | fprintf_vma (stderr, p->val); |
| 2085 | fprintf (stderr, " never used\n"); |
| 2086 | } |
| 2087 | } |
| 2088 | } |
| 2089 | |
| 2090 | return 0; |
| 2091 | } |
| 2092 | |
| 2093 | int |
| 2094 | main (argc, argv) |
| 2095 | int argc; |
| 2096 | char *argv[]; |
| 2097 | { |
| 2098 | program_name = argv[0]; |
| 2099 | xmalloc_set_program_name (program_name); |
| 2100 | |
| 2101 | START_PROGRESS (program_name, 0); |
| 2102 | |
| 2103 | strip_symbols = strip_undef; |
| 2104 | discard_locals = locals_undef; |
| 2105 | |
| 2106 | bfd_init (); |
| 2107 | set_default_bfd_target (); |
| 2108 | |
| 2109 | if (is_strip < 0) |
| 2110 | { |
| 2111 | int i = strlen (program_name); |
| 2112 | is_strip = (i >= 5 && strcmp (program_name + i - 5, "strip") == 0); |
| 2113 | } |
| 2114 | |
| 2115 | if (is_strip) |
| 2116 | strip_main (argc, argv); |
| 2117 | else |
| 2118 | copy_main (argc, argv); |
| 2119 | |
| 2120 | END_PROGRESS (program_name); |
| 2121 | |
| 2122 | return status; |
| 2123 | } |