| 1 | /* objcopy.c -- copy object file from input to output, optionally massaging it. |
| 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
| 3 | 2001, 2002, 2003, 2004, 2005 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GNU Binutils. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 21 | 02111-1307, USA. */ |
| 22 | \f |
| 23 | #include "bfd.h" |
| 24 | #include "progress.h" |
| 25 | #include "bucomm.h" |
| 26 | #include "getopt.h" |
| 27 | #include "libiberty.h" |
| 28 | #include "budbg.h" |
| 29 | #include "filenames.h" |
| 30 | #include "fnmatch.h" |
| 31 | #include "elf-bfd.h" |
| 32 | #include <sys/stat.h> |
| 33 | |
| 34 | /* A list of symbols to explicitly strip out, or to keep. A linked |
| 35 | list is good enough for a small number from the command line, but |
| 36 | this will slow things down a lot if many symbols are being |
| 37 | deleted. */ |
| 38 | |
| 39 | struct symlist |
| 40 | { |
| 41 | const char *name; |
| 42 | struct symlist *next; |
| 43 | }; |
| 44 | |
| 45 | /* A list to support redefine_sym. */ |
| 46 | struct redefine_node |
| 47 | { |
| 48 | char *source; |
| 49 | char *target; |
| 50 | struct redefine_node *next; |
| 51 | }; |
| 52 | |
| 53 | typedef struct section_rename |
| 54 | { |
| 55 | const char * old_name; |
| 56 | const char * new_name; |
| 57 | flagword flags; |
| 58 | struct section_rename * next; |
| 59 | } |
| 60 | section_rename; |
| 61 | |
| 62 | /* List of sections to be renamed. */ |
| 63 | static section_rename *section_rename_list; |
| 64 | |
| 65 | #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;} |
| 66 | |
| 67 | static asymbol **isympp = NULL; /* Input symbols. */ |
| 68 | static asymbol **osympp = NULL; /* Output symbols that survive stripping. */ |
| 69 | |
| 70 | /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */ |
| 71 | static int copy_byte = -1; |
| 72 | static int interleave = 4; |
| 73 | |
| 74 | static bfd_boolean verbose; /* Print file and target names. */ |
| 75 | static bfd_boolean preserve_dates; /* Preserve input file timestamp. */ |
| 76 | static int status = 0; /* Exit status. */ |
| 77 | |
| 78 | enum strip_action |
| 79 | { |
| 80 | STRIP_UNDEF, |
| 81 | STRIP_NONE, /* Don't strip. */ |
| 82 | STRIP_DEBUG, /* Strip all debugger symbols. */ |
| 83 | STRIP_UNNEEDED, /* Strip unnecessary symbols. */ |
| 84 | STRIP_NONDEBUG, /* Strip everything but debug info. */ |
| 85 | STRIP_ALL /* Strip all symbols. */ |
| 86 | }; |
| 87 | |
| 88 | /* Which symbols to remove. */ |
| 89 | static enum strip_action strip_symbols; |
| 90 | |
| 91 | enum locals_action |
| 92 | { |
| 93 | LOCALS_UNDEF, |
| 94 | LOCALS_START_L, /* Discard locals starting with L. */ |
| 95 | LOCALS_ALL /* Discard all locals. */ |
| 96 | }; |
| 97 | |
| 98 | /* Which local symbols to remove. Overrides STRIP_ALL. */ |
| 99 | static enum locals_action discard_locals; |
| 100 | |
| 101 | /* What kind of change to perform. */ |
| 102 | enum change_action |
| 103 | { |
| 104 | CHANGE_IGNORE, |
| 105 | CHANGE_MODIFY, |
| 106 | CHANGE_SET |
| 107 | }; |
| 108 | |
| 109 | /* Structure used to hold lists of sections and actions to take. */ |
| 110 | struct section_list |
| 111 | { |
| 112 | struct section_list * next; /* Next section to change. */ |
| 113 | const char * name; /* Section name. */ |
| 114 | bfd_boolean used; /* Whether this entry was used. */ |
| 115 | bfd_boolean remove; /* Whether to remove this section. */ |
| 116 | bfd_boolean copy; /* Whether to copy this section. */ |
| 117 | enum change_action change_vma;/* Whether to change or set VMA. */ |
| 118 | bfd_vma vma_val; /* Amount to change by or set to. */ |
| 119 | enum change_action change_lma;/* Whether to change or set LMA. */ |
| 120 | bfd_vma lma_val; /* Amount to change by or set to. */ |
| 121 | bfd_boolean set_flags; /* Whether to set the section flags. */ |
| 122 | flagword flags; /* What to set the section flags to. */ |
| 123 | }; |
| 124 | |
| 125 | static struct section_list *change_sections; |
| 126 | |
| 127 | /* TRUE if some sections are to be removed. */ |
| 128 | static bfd_boolean sections_removed; |
| 129 | |
| 130 | /* TRUE if only some sections are to be copied. */ |
| 131 | static bfd_boolean sections_copied; |
| 132 | |
| 133 | /* Changes to the start address. */ |
| 134 | static bfd_vma change_start = 0; |
| 135 | static bfd_boolean set_start_set = FALSE; |
| 136 | static bfd_vma set_start; |
| 137 | |
| 138 | /* Changes to section addresses. */ |
| 139 | static bfd_vma change_section_address = 0; |
| 140 | |
| 141 | /* Filling gaps between sections. */ |
| 142 | static bfd_boolean gap_fill_set = FALSE; |
| 143 | static bfd_byte gap_fill = 0; |
| 144 | |
| 145 | /* Pad to a given address. */ |
| 146 | static bfd_boolean pad_to_set = FALSE; |
| 147 | static bfd_vma pad_to; |
| 148 | |
| 149 | /* Use alternate machine code? */ |
| 150 | static int use_alt_mach_code = 0; |
| 151 | |
| 152 | /* Output BFD flags user wants to set or clear */ |
| 153 | static flagword bfd_flags_to_set; |
| 154 | static flagword bfd_flags_to_clear; |
| 155 | |
| 156 | /* List of sections to add. */ |
| 157 | struct section_add |
| 158 | { |
| 159 | /* Next section to add. */ |
| 160 | struct section_add *next; |
| 161 | /* Name of section to add. */ |
| 162 | const char *name; |
| 163 | /* Name of file holding section contents. */ |
| 164 | const char *filename; |
| 165 | /* Size of file. */ |
| 166 | size_t size; |
| 167 | /* Contents of file. */ |
| 168 | bfd_byte *contents; |
| 169 | /* BFD section, after it has been added. */ |
| 170 | asection *section; |
| 171 | }; |
| 172 | |
| 173 | /* List of sections to add to the output BFD. */ |
| 174 | static struct section_add *add_sections; |
| 175 | |
| 176 | /* If non-NULL the argument to --add-gnu-debuglink. |
| 177 | This should be the filename to store in the .gnu_debuglink section. */ |
| 178 | static const char * gnu_debuglink_filename = NULL; |
| 179 | |
| 180 | /* Whether to convert debugging information. */ |
| 181 | static bfd_boolean convert_debugging = FALSE; |
| 182 | |
| 183 | /* Whether to change the leading character in symbol names. */ |
| 184 | static bfd_boolean change_leading_char = FALSE; |
| 185 | |
| 186 | /* Whether to remove the leading character from global symbol names. */ |
| 187 | static bfd_boolean remove_leading_char = FALSE; |
| 188 | |
| 189 | /* Whether to permit wildcard in symbol comparison. */ |
| 190 | static bfd_boolean wildcard = FALSE; |
| 191 | |
| 192 | /* List of symbols to strip, keep, localize, keep-global, weaken, |
| 193 | or redefine. */ |
| 194 | static struct symlist *strip_specific_list = NULL; |
| 195 | static struct symlist *strip_unneeded_list = NULL; |
| 196 | static struct symlist *keep_specific_list = NULL; |
| 197 | static struct symlist *localize_specific_list = NULL; |
| 198 | static struct symlist *globalize_specific_list = NULL; |
| 199 | static struct symlist *keepglobal_specific_list = NULL; |
| 200 | static struct symlist *weaken_specific_list = NULL; |
| 201 | static struct redefine_node *redefine_sym_list = NULL; |
| 202 | |
| 203 | /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */ |
| 204 | static bfd_boolean weaken = FALSE; |
| 205 | |
| 206 | /* Prefix symbols/sections. */ |
| 207 | static char *prefix_symbols_string = 0; |
| 208 | static char *prefix_sections_string = 0; |
| 209 | static char *prefix_alloc_sections_string = 0; |
| 210 | |
| 211 | /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ |
| 212 | enum command_line_switch |
| 213 | { |
| 214 | OPTION_ADD_SECTION=150, |
| 215 | OPTION_CHANGE_ADDRESSES, |
| 216 | OPTION_CHANGE_LEADING_CHAR, |
| 217 | OPTION_CHANGE_START, |
| 218 | OPTION_CHANGE_SECTION_ADDRESS, |
| 219 | OPTION_CHANGE_SECTION_LMA, |
| 220 | OPTION_CHANGE_SECTION_VMA, |
| 221 | OPTION_CHANGE_WARNINGS, |
| 222 | OPTION_DEBUGGING, |
| 223 | OPTION_GAP_FILL, |
| 224 | OPTION_NO_CHANGE_WARNINGS, |
| 225 | OPTION_PAD_TO, |
| 226 | OPTION_REMOVE_LEADING_CHAR, |
| 227 | OPTION_SET_SECTION_FLAGS, |
| 228 | OPTION_SET_START, |
| 229 | OPTION_STRIP_UNNEEDED, |
| 230 | OPTION_WEAKEN, |
| 231 | OPTION_REDEFINE_SYM, |
| 232 | OPTION_REDEFINE_SYMS, |
| 233 | OPTION_SREC_LEN, |
| 234 | OPTION_SREC_FORCES3, |
| 235 | OPTION_STRIP_SYMBOLS, |
| 236 | OPTION_STRIP_UNNEEDED_SYMBOL, |
| 237 | OPTION_STRIP_UNNEEDED_SYMBOLS, |
| 238 | OPTION_KEEP_SYMBOLS, |
| 239 | OPTION_LOCALIZE_SYMBOLS, |
| 240 | OPTION_GLOBALIZE_SYMBOL, |
| 241 | OPTION_GLOBALIZE_SYMBOLS, |
| 242 | OPTION_KEEPGLOBAL_SYMBOLS, |
| 243 | OPTION_WEAKEN_SYMBOLS, |
| 244 | OPTION_RENAME_SECTION, |
| 245 | OPTION_ALT_MACH_CODE, |
| 246 | OPTION_PREFIX_SYMBOLS, |
| 247 | OPTION_PREFIX_SECTIONS, |
| 248 | OPTION_PREFIX_ALLOC_SECTIONS, |
| 249 | OPTION_FORMATS_INFO, |
| 250 | OPTION_ADD_GNU_DEBUGLINK, |
| 251 | OPTION_ONLY_KEEP_DEBUG, |
| 252 | OPTION_READONLY_TEXT, |
| 253 | OPTION_WRITABLE_TEXT, |
| 254 | OPTION_PURE, |
| 255 | OPTION_IMPURE |
| 256 | }; |
| 257 | |
| 258 | /* Options to handle if running as "strip". */ |
| 259 | |
| 260 | static struct option strip_options[] = |
| 261 | { |
| 262 | {"discard-all", no_argument, 0, 'x'}, |
| 263 | {"discard-locals", no_argument, 0, 'X'}, |
| 264 | {"format", required_argument, 0, 'F'}, /* Obsolete */ |
| 265 | {"help", no_argument, 0, 'h'}, |
| 266 | {"info", no_argument, 0, OPTION_FORMATS_INFO}, |
| 267 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| 268 | {"input-target", required_argument, 0, 'I'}, |
| 269 | {"keep-symbol", required_argument, 0, 'K'}, |
| 270 | {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG}, |
| 271 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ |
| 272 | {"output-target", required_argument, 0, 'O'}, |
| 273 | {"output-file", required_argument, 0, 'o'}, |
| 274 | {"preserve-dates", no_argument, 0, 'p'}, |
| 275 | {"remove-section", required_argument, 0, 'R'}, |
| 276 | {"strip-all", no_argument, 0, 's'}, |
| 277 | {"strip-debug", no_argument, 0, 'S'}, |
| 278 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, |
| 279 | {"strip-symbol", required_argument, 0, 'N'}, |
| 280 | {"target", required_argument, 0, 'F'}, |
| 281 | {"verbose", no_argument, 0, 'v'}, |
| 282 | {"version", no_argument, 0, 'V'}, |
| 283 | {"wildcard", no_argument, 0, 'w'}, |
| 284 | {0, no_argument, 0, 0} |
| 285 | }; |
| 286 | |
| 287 | /* Options to handle if running as "objcopy". */ |
| 288 | |
| 289 | static struct option copy_options[] = |
| 290 | { |
| 291 | {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK}, |
| 292 | {"add-section", required_argument, 0, OPTION_ADD_SECTION}, |
| 293 | {"adjust-start", required_argument, 0, OPTION_CHANGE_START}, |
| 294 | {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES}, |
| 295 | {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, |
| 296 | {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, |
| 297 | {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE}, |
| 298 | {"binary-architecture", required_argument, 0, 'B'}, |
| 299 | {"byte", required_argument, 0, 'b'}, |
| 300 | {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES}, |
| 301 | {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR}, |
| 302 | {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, |
| 303 | {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA}, |
| 304 | {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA}, |
| 305 | {"change-start", required_argument, 0, OPTION_CHANGE_START}, |
| 306 | {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, |
| 307 | {"debugging", no_argument, 0, OPTION_DEBUGGING}, |
| 308 | {"discard-all", no_argument, 0, 'x'}, |
| 309 | {"discard-locals", no_argument, 0, 'X'}, |
| 310 | {"format", required_argument, 0, 'F'}, /* Obsolete */ |
| 311 | {"gap-fill", required_argument, 0, OPTION_GAP_FILL}, |
| 312 | {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL}, |
| 313 | {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS}, |
| 314 | {"help", no_argument, 0, 'h'}, |
| 315 | {"impure", no_argument, 0, OPTION_IMPURE}, |
| 316 | {"info", no_argument, 0, OPTION_FORMATS_INFO}, |
| 317 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| 318 | {"input-target", required_argument, 0, 'I'}, |
| 319 | {"interleave", required_argument, 0, 'i'}, |
| 320 | {"keep-global-symbol", required_argument, 0, 'G'}, |
| 321 | {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS}, |
| 322 | {"keep-symbol", required_argument, 0, 'K'}, |
| 323 | {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS}, |
| 324 | {"localize-symbol", required_argument, 0, 'L'}, |
| 325 | {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS}, |
| 326 | {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, |
| 327 | {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, |
| 328 | {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG}, |
| 329 | {"only-section", required_argument, 0, 'j'}, |
| 330 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ |
| 331 | {"output-target", required_argument, 0, 'O'}, |
| 332 | {"pad-to", required_argument, 0, OPTION_PAD_TO}, |
| 333 | {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS}, |
| 334 | {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS}, |
| 335 | {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS}, |
| 336 | {"preserve-dates", no_argument, 0, 'p'}, |
| 337 | {"pure", no_argument, 0, OPTION_PURE}, |
| 338 | {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT}, |
| 339 | {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM}, |
| 340 | {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS}, |
| 341 | {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR}, |
| 342 | {"remove-section", required_argument, 0, 'R'}, |
| 343 | {"rename-section", required_argument, 0, OPTION_RENAME_SECTION}, |
| 344 | {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS}, |
| 345 | {"set-start", required_argument, 0, OPTION_SET_START}, |
| 346 | {"srec-len", required_argument, 0, OPTION_SREC_LEN}, |
| 347 | {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3}, |
| 348 | {"strip-all", no_argument, 0, 'S'}, |
| 349 | {"strip-debug", no_argument, 0, 'g'}, |
| 350 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, |
| 351 | {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL}, |
| 352 | {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS}, |
| 353 | {"strip-symbol", required_argument, 0, 'N'}, |
| 354 | {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS}, |
| 355 | {"target", required_argument, 0, 'F'}, |
| 356 | {"verbose", no_argument, 0, 'v'}, |
| 357 | {"version", no_argument, 0, 'V'}, |
| 358 | {"weaken", no_argument, 0, OPTION_WEAKEN}, |
| 359 | {"weaken-symbol", required_argument, 0, 'W'}, |
| 360 | {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS}, |
| 361 | {"wildcard", no_argument, 0, 'w'}, |
| 362 | {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT}, |
| 363 | {0, no_argument, 0, 0} |
| 364 | }; |
| 365 | |
| 366 | /* IMPORTS */ |
| 367 | extern char *program_name; |
| 368 | |
| 369 | /* This flag distinguishes between strip and objcopy: |
| 370 | 1 means this is 'strip'; 0 means this is 'objcopy'. |
| 371 | -1 means if we should use argv[0] to decide. */ |
| 372 | extern int is_strip; |
| 373 | |
| 374 | /* The maximum length of an S record. This variable is declared in srec.c |
| 375 | and can be modified by the --srec-len parameter. */ |
| 376 | extern unsigned int Chunk; |
| 377 | |
| 378 | /* Restrict the generation of Srecords to type S3 only. |
| 379 | This variable is declare in bfd/srec.c and can be toggled |
| 380 | on by the --srec-forceS3 command line switch. */ |
| 381 | extern bfd_boolean S3Forced; |
| 382 | |
| 383 | /* Defined in bfd/binary.c. Used to set architecture and machine of input |
| 384 | binary files. */ |
| 385 | extern enum bfd_architecture bfd_external_binary_architecture; |
| 386 | extern unsigned long bfd_external_machine; |
| 387 | |
| 388 | /* Forward declarations. */ |
| 389 | static void setup_section (bfd *, asection *, void *); |
| 390 | static void setup_bfd_headers (bfd *, bfd *); |
| 391 | static void copy_section (bfd *, asection *, void *); |
| 392 | static void get_sections (bfd *, asection *, void *); |
| 393 | static int compare_section_lma (const void *, const void *); |
| 394 | static void mark_symbols_used_in_relocations (bfd *, asection *, void *); |
| 395 | static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***); |
| 396 | static const char *lookup_sym_redefinition (const char *); |
| 397 | \f |
| 398 | static void |
| 399 | copy_usage (FILE *stream, int exit_status) |
| 400 | { |
| 401 | fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name); |
| 402 | fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n")); |
| 403 | fprintf (stream, _(" The options are:\n")); |
| 404 | fprintf (stream, _("\ |
| 405 | -I --input-target <bfdname> Assume input file is in format <bfdname>\n\ |
| 406 | -O --output-target <bfdname> Create an output file in format <bfdname>\n\ |
| 407 | -B --binary-architecture <arch> Set arch of output file, when input is binary\n\ |
| 408 | -F --target <bfdname> Set both input and output format to <bfdname>\n\ |
| 409 | --debugging Convert debugging information, if possible\n\ |
| 410 | -p --preserve-dates Copy modified/access timestamps to the output\n\ |
| 411 | -j --only-section <name> Only copy section <name> into the output\n\ |
| 412 | --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\ |
| 413 | -R --remove-section <name> Remove section <name> from the output\n\ |
| 414 | -S --strip-all Remove all symbol and relocation information\n\ |
| 415 | -g --strip-debug Remove all debugging symbols & sections\n\ |
| 416 | --strip-unneeded Remove all symbols not needed by relocations\n\ |
| 417 | -N --strip-symbol <name> Do not copy symbol <name>\n\ |
| 418 | --strip-unneeded-symbol <name>\n\ |
| 419 | Do not copy symbol <name> unless needed by\n\ |
| 420 | relocations\n\ |
| 421 | --only-keep-debug Strip everything but the debug information\n\ |
| 422 | -K --keep-symbol <name> Only copy symbol <name>\n\ |
| 423 | -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\ |
| 424 | --globalize-symbol <name> Force symbol <name> to be marked as a global\n\ |
| 425 | -G --keep-global-symbol <name> Localize all symbols except <name>\n\ |
| 426 | -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\ |
| 427 | --weaken Force all global symbols to be marked as weak\n\ |
| 428 | -w --wildcard Permit wildcard in symbol comparison\n\ |
| 429 | -x --discard-all Remove all non-global symbols\n\ |
| 430 | -X --discard-locals Remove any compiler-generated symbols\n\ |
| 431 | -i --interleave <number> Only copy one out of every <number> bytes\n\ |
| 432 | -b --byte <num> Select byte <num> in every interleaved block\n\ |
| 433 | --gap-fill <val> Fill gaps between sections with <val>\n\ |
| 434 | --pad-to <addr> Pad the last section up to address <addr>\n\ |
| 435 | --set-start <addr> Set the start address to <addr>\n\ |
| 436 | {--change-start|--adjust-start} <incr>\n\ |
| 437 | Add <incr> to the start address\n\ |
| 438 | {--change-addresses|--adjust-vma} <incr>\n\ |
| 439 | Add <incr> to LMA, VMA and start addresses\n\ |
| 440 | {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\ |
| 441 | Change LMA and VMA of section <name> by <val>\n\ |
| 442 | --change-section-lma <name>{=|+|-}<val>\n\ |
| 443 | Change the LMA of section <name> by <val>\n\ |
| 444 | --change-section-vma <name>{=|+|-}<val>\n\ |
| 445 | Change the VMA of section <name> by <val>\n\ |
| 446 | {--[no-]change-warnings|--[no-]adjust-warnings}\n\ |
| 447 | Warn if a named section does not exist\n\ |
| 448 | --set-section-flags <name>=<flags>\n\ |
| 449 | Set section <name>'s properties to <flags>\n\ |
| 450 | --add-section <name>=<file> Add section <name> found in <file> to output\n\ |
| 451 | --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\ |
| 452 | --change-leading-char Force output format's leading character style\n\ |
| 453 | --remove-leading-char Remove leading character from global symbols\n\ |
| 454 | --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\ |
| 455 | --redefine-syms <file> --redefine-sym for all symbol pairs \n\ |
| 456 | listed in <file>\n\ |
| 457 | --srec-len <number> Restrict the length of generated Srecords\n\ |
| 458 | --srec-forceS3 Restrict the type of generated Srecords to S3\n\ |
| 459 | --strip-symbols <file> -N for all symbols listed in <file>\n\ |
| 460 | --strip-unneeded-symbols <file>\n\ |
| 461 | --strip-unneeded-symbol for all symbols listed\n\ |
| 462 | in <file>\n\ |
| 463 | --keep-symbols <file> -K for all symbols listed in <file>\n\ |
| 464 | --localize-symbols <file> -L for all symbols listed in <file>\n\ |
| 465 | --globalize-symbols <file> --globalize-symbol for all in <file>\n\ |
| 466 | --keep-global-symbols <file> -G for all symbols listed in <file>\n\ |
| 467 | --weaken-symbols <file> -W for all symbols listed in <file>\n\ |
| 468 | --alt-machine-code <index> Use alternate machine code for output\n\ |
| 469 | --writable-text Mark the output text as writable\n\ |
| 470 | --readonly-text Make the output text write protected\n\ |
| 471 | --pure Mark the output file as demand paged\n\ |
| 472 | --impure Mark the output file as impure\n\ |
| 473 | --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\ |
| 474 | --prefix-sections <prefix> Add <prefix> to start of every section name\n\ |
| 475 | --prefix-alloc-sections <prefix>\n\ |
| 476 | Add <prefix> to start of every allocatable\n\ |
| 477 | section name\n\ |
| 478 | -v --verbose List all object files modified\n\ |
| 479 | -V --version Display this program's version number\n\ |
| 480 | -h --help Display this output\n\ |
| 481 | --info List object formats & architectures supported\n\ |
| 482 | ")); |
| 483 | list_supported_targets (program_name, stream); |
| 484 | if (exit_status == 0) |
| 485 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
| 486 | exit (exit_status); |
| 487 | } |
| 488 | |
| 489 | static void |
| 490 | strip_usage (FILE *stream, int exit_status) |
| 491 | { |
| 492 | fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name); |
| 493 | fprintf (stream, _(" Removes symbols and sections from files\n")); |
| 494 | fprintf (stream, _(" The options are:\n")); |
| 495 | fprintf (stream, _("\ |
| 496 | -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\ |
| 497 | -O --output-target=<bfdname> Create an output file in format <bfdname>\n\ |
| 498 | -F --target=<bfdname> Set both input and output format to <bfdname>\n\ |
| 499 | -p --preserve-dates Copy modified/access timestamps to the output\n\ |
| 500 | -R --remove-section=<name> Remove section <name> from the output\n\ |
| 501 | -s --strip-all Remove all symbol and relocation information\n\ |
| 502 | -g -S -d --strip-debug Remove all debugging symbols & sections\n\ |
| 503 | --strip-unneeded Remove all symbols not needed by relocations\n\ |
| 504 | --only-keep-debug Strip everything but the debug information\n\ |
| 505 | -N --strip-symbol=<name> Do not copy symbol <name>\n\ |
| 506 | -K --keep-symbol=<name> Only copy symbol <name>\n\ |
| 507 | -w --wildcard Permit wildcard in symbol comparison\n\ |
| 508 | -x --discard-all Remove all non-global symbols\n\ |
| 509 | -X --discard-locals Remove any compiler-generated symbols\n\ |
| 510 | -v --verbose List all object files modified\n\ |
| 511 | -V --version Display this program's version number\n\ |
| 512 | -h --help Display this output\n\ |
| 513 | --info List object formats & architectures supported\n\ |
| 514 | -o <file> Place stripped output into <file>\n\ |
| 515 | ")); |
| 516 | |
| 517 | list_supported_targets (program_name, stream); |
| 518 | if (exit_status == 0) |
| 519 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
| 520 | exit (exit_status); |
| 521 | } |
| 522 | |
| 523 | /* Parse section flags into a flagword, with a fatal error if the |
| 524 | string can't be parsed. */ |
| 525 | |
| 526 | static flagword |
| 527 | parse_flags (const char *s) |
| 528 | { |
| 529 | flagword ret; |
| 530 | const char *snext; |
| 531 | int len; |
| 532 | |
| 533 | ret = SEC_NO_FLAGS; |
| 534 | |
| 535 | do |
| 536 | { |
| 537 | snext = strchr (s, ','); |
| 538 | if (snext == NULL) |
| 539 | len = strlen (s); |
| 540 | else |
| 541 | { |
| 542 | len = snext - s; |
| 543 | ++snext; |
| 544 | } |
| 545 | |
| 546 | if (0) ; |
| 547 | #define PARSE_FLAG(fname,fval) \ |
| 548 | else if (strncasecmp (fname, s, len) == 0) ret |= fval |
| 549 | PARSE_FLAG ("alloc", SEC_ALLOC); |
| 550 | PARSE_FLAG ("load", SEC_LOAD); |
| 551 | PARSE_FLAG ("noload", SEC_NEVER_LOAD); |
| 552 | PARSE_FLAG ("readonly", SEC_READONLY); |
| 553 | PARSE_FLAG ("debug", SEC_DEBUGGING); |
| 554 | PARSE_FLAG ("code", SEC_CODE); |
| 555 | PARSE_FLAG ("data", SEC_DATA); |
| 556 | PARSE_FLAG ("rom", SEC_ROM); |
| 557 | PARSE_FLAG ("share", SEC_COFF_SHARED); |
| 558 | PARSE_FLAG ("contents", SEC_HAS_CONTENTS); |
| 559 | #undef PARSE_FLAG |
| 560 | else |
| 561 | { |
| 562 | char *copy; |
| 563 | |
| 564 | copy = xmalloc (len + 1); |
| 565 | strncpy (copy, s, len); |
| 566 | copy[len] = '\0'; |
| 567 | non_fatal (_("unrecognized section flag `%s'"), copy); |
| 568 | fatal (_("supported flags: %s"), |
| 569 | "alloc, load, noload, readonly, debug, code, data, rom, share, contents"); |
| 570 | } |
| 571 | |
| 572 | s = snext; |
| 573 | } |
| 574 | while (s != NULL); |
| 575 | |
| 576 | return ret; |
| 577 | } |
| 578 | |
| 579 | /* Find and optionally add an entry in the change_sections list. */ |
| 580 | |
| 581 | static struct section_list * |
| 582 | find_section_list (const char *name, bfd_boolean add) |
| 583 | { |
| 584 | struct section_list *p; |
| 585 | |
| 586 | for (p = change_sections; p != NULL; p = p->next) |
| 587 | if (strcmp (p->name, name) == 0) |
| 588 | return p; |
| 589 | |
| 590 | if (! add) |
| 591 | return NULL; |
| 592 | |
| 593 | p = xmalloc (sizeof (struct section_list)); |
| 594 | p->name = name; |
| 595 | p->used = FALSE; |
| 596 | p->remove = FALSE; |
| 597 | p->copy = FALSE; |
| 598 | p->change_vma = CHANGE_IGNORE; |
| 599 | p->change_lma = CHANGE_IGNORE; |
| 600 | p->vma_val = 0; |
| 601 | p->lma_val = 0; |
| 602 | p->set_flags = FALSE; |
| 603 | p->flags = 0; |
| 604 | |
| 605 | p->next = change_sections; |
| 606 | change_sections = p; |
| 607 | |
| 608 | return p; |
| 609 | } |
| 610 | |
| 611 | /* Add a symbol to strip_specific_list. */ |
| 612 | |
| 613 | static void |
| 614 | add_specific_symbol (const char *name, struct symlist **list) |
| 615 | { |
| 616 | struct symlist *tmp_list; |
| 617 | |
| 618 | tmp_list = xmalloc (sizeof (struct symlist)); |
| 619 | tmp_list->name = name; |
| 620 | tmp_list->next = *list; |
| 621 | *list = tmp_list; |
| 622 | } |
| 623 | |
| 624 | /* Add symbols listed in `filename' to strip_specific_list. */ |
| 625 | |
| 626 | #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t') |
| 627 | #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0') |
| 628 | |
| 629 | static void |
| 630 | add_specific_symbols (const char *filename, struct symlist **list) |
| 631 | { |
| 632 | off_t size; |
| 633 | FILE * f; |
| 634 | char * line; |
| 635 | char * buffer; |
| 636 | unsigned int line_count; |
| 637 | |
| 638 | size = get_file_size (filename); |
| 639 | if (size == 0) |
| 640 | return; |
| 641 | |
| 642 | buffer = xmalloc (size + 2); |
| 643 | f = fopen (filename, FOPEN_RT); |
| 644 | if (f == NULL) |
| 645 | fatal (_("cannot open '%s': %s"), filename, strerror (errno)); |
| 646 | |
| 647 | if (fread (buffer, 1, size, f) == 0 || ferror (f)) |
| 648 | fatal (_("%s: fread failed"), filename); |
| 649 | |
| 650 | fclose (f); |
| 651 | buffer [size] = '\n'; |
| 652 | buffer [size + 1] = '\0'; |
| 653 | |
| 654 | line_count = 1; |
| 655 | |
| 656 | for (line = buffer; * line != '\0'; line ++) |
| 657 | { |
| 658 | char * eol; |
| 659 | char * name; |
| 660 | char * name_end; |
| 661 | int finished = FALSE; |
| 662 | |
| 663 | for (eol = line;; eol ++) |
| 664 | { |
| 665 | switch (* eol) |
| 666 | { |
| 667 | case '\n': |
| 668 | * eol = '\0'; |
| 669 | /* Cope with \n\r. */ |
| 670 | if (eol[1] == '\r') |
| 671 | ++ eol; |
| 672 | finished = TRUE; |
| 673 | break; |
| 674 | |
| 675 | case '\r': |
| 676 | * eol = '\0'; |
| 677 | /* Cope with \r\n. */ |
| 678 | if (eol[1] == '\n') |
| 679 | ++ eol; |
| 680 | finished = TRUE; |
| 681 | break; |
| 682 | |
| 683 | case 0: |
| 684 | finished = TRUE; |
| 685 | break; |
| 686 | |
| 687 | case '#': |
| 688 | /* Line comment, Terminate the line here, in case a |
| 689 | name is present and then allow the rest of the |
| 690 | loop to find the real end of the line. */ |
| 691 | * eol = '\0'; |
| 692 | break; |
| 693 | |
| 694 | default: |
| 695 | break; |
| 696 | } |
| 697 | |
| 698 | if (finished) |
| 699 | break; |
| 700 | } |
| 701 | |
| 702 | /* A name may now exist somewhere between 'line' and 'eol'. |
| 703 | Strip off leading whitespace and trailing whitespace, |
| 704 | then add it to the list. */ |
| 705 | for (name = line; IS_WHITESPACE (* name); name ++) |
| 706 | ; |
| 707 | for (name_end = name; |
| 708 | (! IS_WHITESPACE (* name_end)) |
| 709 | && (! IS_LINE_TERMINATOR (* name_end)); |
| 710 | name_end ++) |
| 711 | ; |
| 712 | |
| 713 | if (! IS_LINE_TERMINATOR (* name_end)) |
| 714 | { |
| 715 | char * extra; |
| 716 | |
| 717 | for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++) |
| 718 | ; |
| 719 | |
| 720 | if (! IS_LINE_TERMINATOR (* extra)) |
| 721 | non_fatal (_("%s:%d: Ignoring rubbish found on this line"), |
| 722 | filename, line_count); |
| 723 | } |
| 724 | |
| 725 | * name_end = '\0'; |
| 726 | |
| 727 | if (name_end > name) |
| 728 | add_specific_symbol (name, list); |
| 729 | |
| 730 | /* Advance line pointer to end of line. The 'eol ++' in the for |
| 731 | loop above will then advance us to the start of the next line. */ |
| 732 | line = eol; |
| 733 | line_count ++; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | /* See whether a symbol should be stripped or kept based on |
| 738 | strip_specific_list and keep_symbols. */ |
| 739 | |
| 740 | static bfd_boolean |
| 741 | is_specified_symbol (const char *name, struct symlist *list) |
| 742 | { |
| 743 | struct symlist *tmp_list; |
| 744 | |
| 745 | if (wildcard) |
| 746 | { |
| 747 | for (tmp_list = list; tmp_list; tmp_list = tmp_list->next) |
| 748 | if (*(tmp_list->name) != '!') |
| 749 | { |
| 750 | if (!fnmatch (tmp_list->name, name, 0)) |
| 751 | return TRUE; |
| 752 | } |
| 753 | else |
| 754 | { |
| 755 | if (fnmatch (tmp_list->name + 1, name, 0)) |
| 756 | return TRUE; |
| 757 | } |
| 758 | } |
| 759 | else |
| 760 | { |
| 761 | for (tmp_list = list; tmp_list; tmp_list = tmp_list->next) |
| 762 | if (strcmp (name, tmp_list->name) == 0) |
| 763 | return TRUE; |
| 764 | } |
| 765 | |
| 766 | return FALSE; |
| 767 | } |
| 768 | |
| 769 | /* See if a section is being removed. */ |
| 770 | |
| 771 | static bfd_boolean |
| 772 | is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) |
| 773 | { |
| 774 | if (sections_removed || sections_copied) |
| 775 | { |
| 776 | struct section_list *p; |
| 777 | |
| 778 | p = find_section_list (bfd_get_section_name (abfd, sec), FALSE); |
| 779 | |
| 780 | if (sections_removed && p != NULL && p->remove) |
| 781 | return TRUE; |
| 782 | if (sections_copied && (p == NULL || ! p->copy)) |
| 783 | return TRUE; |
| 784 | } |
| 785 | |
| 786 | if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0) |
| 787 | { |
| 788 | if (strip_symbols == STRIP_DEBUG |
| 789 | || strip_symbols == STRIP_UNNEEDED |
| 790 | || strip_symbols == STRIP_ALL |
| 791 | || discard_locals == LOCALS_ALL |
| 792 | || convert_debugging) |
| 793 | return TRUE; |
| 794 | |
| 795 | if (strip_symbols == STRIP_NONDEBUG) |
| 796 | return FALSE; |
| 797 | } |
| 798 | |
| 799 | return FALSE; |
| 800 | } |
| 801 | |
| 802 | /* Choose which symbol entries to copy; put the result in OSYMS. |
| 803 | We don't copy in place, because that confuses the relocs. |
| 804 | Return the number of symbols to print. */ |
| 805 | |
| 806 | static unsigned int |
| 807 | filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, |
| 808 | asymbol **isyms, long symcount) |
| 809 | { |
| 810 | asymbol **from = isyms, **to = osyms; |
| 811 | long src_count = 0, dst_count = 0; |
| 812 | int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC)) |
| 813 | == HAS_RELOC; |
| 814 | |
| 815 | for (; src_count < symcount; src_count++) |
| 816 | { |
| 817 | asymbol *sym = from[src_count]; |
| 818 | flagword flags = sym->flags; |
| 819 | char *name = (char *) bfd_asymbol_name (sym); |
| 820 | int keep; |
| 821 | bfd_boolean undefined; |
| 822 | bfd_boolean rem_leading_char; |
| 823 | bfd_boolean add_leading_char; |
| 824 | |
| 825 | undefined = bfd_is_und_section (bfd_get_section (sym)); |
| 826 | |
| 827 | if (redefine_sym_list) |
| 828 | { |
| 829 | char *old_name, *new_name; |
| 830 | |
| 831 | old_name = (char *) bfd_asymbol_name (sym); |
| 832 | new_name = (char *) lookup_sym_redefinition (old_name); |
| 833 | bfd_asymbol_name (sym) = new_name; |
| 834 | name = new_name; |
| 835 | } |
| 836 | |
| 837 | /* Check if we will remove the current leading character. */ |
| 838 | rem_leading_char = |
| 839 | (name[0] == bfd_get_symbol_leading_char (abfd)) |
| 840 | && (change_leading_char |
| 841 | || (remove_leading_char |
| 842 | && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0 |
| 843 | || undefined |
| 844 | || bfd_is_com_section (bfd_get_section (sym))))); |
| 845 | |
| 846 | /* Check if we will add a new leading character. */ |
| 847 | add_leading_char = |
| 848 | change_leading_char |
| 849 | && (bfd_get_symbol_leading_char (obfd) != '\0') |
| 850 | && (bfd_get_symbol_leading_char (abfd) == '\0' |
| 851 | || (name[0] == bfd_get_symbol_leading_char (abfd))); |
| 852 | |
| 853 | /* Short circuit for change_leading_char if we can do it in-place. */ |
| 854 | if (rem_leading_char && add_leading_char && !prefix_symbols_string) |
| 855 | { |
| 856 | name[0] = bfd_get_symbol_leading_char (obfd); |
| 857 | bfd_asymbol_name (sym) = name; |
| 858 | rem_leading_char = FALSE; |
| 859 | add_leading_char = FALSE; |
| 860 | } |
| 861 | |
| 862 | /* Remove leading char. */ |
| 863 | if (rem_leading_char) |
| 864 | bfd_asymbol_name (sym) = ++name; |
| 865 | |
| 866 | /* Add new leading char and/or prefix. */ |
| 867 | if (add_leading_char || prefix_symbols_string) |
| 868 | { |
| 869 | char *n, *ptr; |
| 870 | |
| 871 | ptr = n = xmalloc (1 + strlen (prefix_symbols_string) |
| 872 | + strlen (name) + 1); |
| 873 | if (add_leading_char) |
| 874 | *ptr++ = bfd_get_symbol_leading_char (obfd); |
| 875 | |
| 876 | if (prefix_symbols_string) |
| 877 | { |
| 878 | strcpy (ptr, prefix_symbols_string); |
| 879 | ptr += strlen (prefix_symbols_string); |
| 880 | } |
| 881 | |
| 882 | strcpy (ptr, name); |
| 883 | bfd_asymbol_name (sym) = n; |
| 884 | name = n; |
| 885 | } |
| 886 | |
| 887 | if (strip_symbols == STRIP_ALL) |
| 888 | keep = 0; |
| 889 | else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */ |
| 890 | || ((flags & BSF_SECTION_SYM) != 0 |
| 891 | && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags |
| 892 | & BSF_KEEP) != 0)) |
| 893 | keep = 1; |
| 894 | else if (relocatable /* Relocatable file. */ |
| 895 | && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0) |
| 896 | keep = 1; |
| 897 | else if (bfd_decode_symclass (sym) == 'I') |
| 898 | /* Global symbols in $idata sections need to be retained |
| 899 | even if relocatable is FALSE. External users of the |
| 900 | library containing the $idata section may reference these |
| 901 | symbols. */ |
| 902 | keep = 1; |
| 903 | else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */ |
| 904 | || (flags & BSF_WEAK) != 0 |
| 905 | || undefined |
| 906 | || bfd_is_com_section (bfd_get_section (sym))) |
| 907 | keep = strip_symbols != STRIP_UNNEEDED; |
| 908 | else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */ |
| 909 | keep = (strip_symbols != STRIP_DEBUG |
| 910 | && strip_symbols != STRIP_UNNEEDED |
| 911 | && ! convert_debugging); |
| 912 | else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym))) |
| 913 | /* COMDAT sections store special information in local |
| 914 | symbols, so we cannot risk stripping any of them. */ |
| 915 | keep = 1; |
| 916 | else /* Local symbol. */ |
| 917 | keep = (strip_symbols != STRIP_UNNEEDED |
| 918 | && (discard_locals != LOCALS_ALL |
| 919 | && (discard_locals != LOCALS_START_L |
| 920 | || ! bfd_is_local_label (abfd, sym)))); |
| 921 | |
| 922 | if (keep && is_specified_symbol (name, strip_specific_list)) |
| 923 | keep = 0; |
| 924 | if (keep |
| 925 | && !(flags & BSF_KEEP) |
| 926 | && is_specified_symbol (name, strip_unneeded_list)) |
| 927 | keep = 0; |
| 928 | if (!keep && is_specified_symbol (name, keep_specific_list)) |
| 929 | keep = 1; |
| 930 | if (keep && is_strip_section (abfd, bfd_get_section (sym))) |
| 931 | keep = 0; |
| 932 | |
| 933 | if (keep) |
| 934 | { |
| 935 | if ((flags & BSF_GLOBAL) != 0 |
| 936 | && (weaken || is_specified_symbol (name, weaken_specific_list))) |
| 937 | { |
| 938 | sym->flags &= ~ BSF_GLOBAL; |
| 939 | sym->flags |= BSF_WEAK; |
| 940 | } |
| 941 | |
| 942 | if (!undefined |
| 943 | && (flags & (BSF_GLOBAL | BSF_WEAK)) |
| 944 | && (is_specified_symbol (name, localize_specific_list) |
| 945 | || (keepglobal_specific_list != NULL |
| 946 | && ! is_specified_symbol (name, keepglobal_specific_list)))) |
| 947 | { |
| 948 | sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK); |
| 949 | sym->flags |= BSF_LOCAL; |
| 950 | } |
| 951 | |
| 952 | if (!undefined |
| 953 | && (flags & BSF_LOCAL) |
| 954 | && is_specified_symbol (name, globalize_specific_list)) |
| 955 | { |
| 956 | sym->flags &= ~ BSF_LOCAL; |
| 957 | sym->flags |= BSF_GLOBAL; |
| 958 | } |
| 959 | |
| 960 | to[dst_count++] = sym; |
| 961 | } |
| 962 | } |
| 963 | |
| 964 | to[dst_count] = NULL; |
| 965 | |
| 966 | return dst_count; |
| 967 | } |
| 968 | |
| 969 | /* Find the redefined name of symbol SOURCE. */ |
| 970 | |
| 971 | static const char * |
| 972 | lookup_sym_redefinition (const char *source) |
| 973 | { |
| 974 | struct redefine_node *list; |
| 975 | |
| 976 | for (list = redefine_sym_list; list != NULL; list = list->next) |
| 977 | if (strcmp (source, list->source) == 0) |
| 978 | return list->target; |
| 979 | |
| 980 | return source; |
| 981 | } |
| 982 | |
| 983 | /* Add a node to a symbol redefine list. */ |
| 984 | |
| 985 | static void |
| 986 | redefine_list_append (const char *cause, const char *source, const char *target) |
| 987 | { |
| 988 | struct redefine_node **p; |
| 989 | struct redefine_node *list; |
| 990 | struct redefine_node *new_node; |
| 991 | |
| 992 | for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next) |
| 993 | { |
| 994 | if (strcmp (source, list->source) == 0) |
| 995 | fatal (_("%s: Multiple redefinition of symbol \"%s\""), |
| 996 | cause, source); |
| 997 | |
| 998 | if (strcmp (target, list->target) == 0) |
| 999 | fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"), |
| 1000 | cause, target); |
| 1001 | } |
| 1002 | |
| 1003 | new_node = xmalloc (sizeof (struct redefine_node)); |
| 1004 | |
| 1005 | new_node->source = strdup (source); |
| 1006 | new_node->target = strdup (target); |
| 1007 | new_node->next = NULL; |
| 1008 | |
| 1009 | *p = new_node; |
| 1010 | } |
| 1011 | |
| 1012 | /* Handle the --redefine-syms option. Read lines containing "old new" |
| 1013 | from the file, and add them to the symbol redefine list. */ |
| 1014 | |
| 1015 | static void |
| 1016 | add_redefine_syms_file (const char *filename) |
| 1017 | { |
| 1018 | FILE *file; |
| 1019 | char *buf; |
| 1020 | size_t bufsize; |
| 1021 | size_t len; |
| 1022 | size_t outsym_off; |
| 1023 | int c, lineno; |
| 1024 | |
| 1025 | file = fopen (filename, "r"); |
| 1026 | if (file == NULL) |
| 1027 | fatal (_("couldn't open symbol redefinition file %s (error: %s)"), |
| 1028 | filename, strerror (errno)); |
| 1029 | |
| 1030 | bufsize = 100; |
| 1031 | buf = xmalloc (bufsize); |
| 1032 | |
| 1033 | lineno = 1; |
| 1034 | c = getc (file); |
| 1035 | len = 0; |
| 1036 | outsym_off = 0; |
| 1037 | while (c != EOF) |
| 1038 | { |
| 1039 | /* Collect the input symbol name. */ |
| 1040 | while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF) |
| 1041 | { |
| 1042 | if (c == '#') |
| 1043 | goto comment; |
| 1044 | buf[len++] = c; |
| 1045 | if (len >= bufsize) |
| 1046 | { |
| 1047 | bufsize *= 2; |
| 1048 | buf = xrealloc (buf, bufsize); |
| 1049 | } |
| 1050 | c = getc (file); |
| 1051 | } |
| 1052 | buf[len++] = '\0'; |
| 1053 | if (c == EOF) |
| 1054 | break; |
| 1055 | |
| 1056 | /* Eat white space between the symbol names. */ |
| 1057 | while (IS_WHITESPACE (c)) |
| 1058 | c = getc (file); |
| 1059 | if (c == '#' || IS_LINE_TERMINATOR (c)) |
| 1060 | goto comment; |
| 1061 | if (c == EOF) |
| 1062 | break; |
| 1063 | |
| 1064 | /* Collect the output symbol name. */ |
| 1065 | outsym_off = len; |
| 1066 | while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF) |
| 1067 | { |
| 1068 | if (c == '#') |
| 1069 | goto comment; |
| 1070 | buf[len++] = c; |
| 1071 | if (len >= bufsize) |
| 1072 | { |
| 1073 | bufsize *= 2; |
| 1074 | buf = xrealloc (buf, bufsize); |
| 1075 | } |
| 1076 | c = getc (file); |
| 1077 | } |
| 1078 | buf[len++] = '\0'; |
| 1079 | if (c == EOF) |
| 1080 | break; |
| 1081 | |
| 1082 | /* Eat white space at end of line. */ |
| 1083 | while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c)) |
| 1084 | c = getc (file); |
| 1085 | if (c == '#') |
| 1086 | goto comment; |
| 1087 | /* Handle \r\n. */ |
| 1088 | if ((c == '\r' && (c = getc (file)) == '\n') |
| 1089 | || c == '\n' || c == EOF) |
| 1090 | { |
| 1091 | end_of_line: |
| 1092 | /* Append the redefinition to the list. */ |
| 1093 | if (buf[0] != '\0') |
| 1094 | redefine_list_append (filename, &buf[0], &buf[outsym_off]); |
| 1095 | |
| 1096 | lineno++; |
| 1097 | len = 0; |
| 1098 | outsym_off = 0; |
| 1099 | if (c == EOF) |
| 1100 | break; |
| 1101 | c = getc (file); |
| 1102 | continue; |
| 1103 | } |
| 1104 | else |
| 1105 | fatal (_("%s:%d: garbage found at end of line"), filename, lineno); |
| 1106 | comment: |
| 1107 | if (len != 0 && (outsym_off == 0 || outsym_off == len)) |
| 1108 | fatal (_("%s:%d: missing new symbol name"), filename, lineno); |
| 1109 | buf[len++] = '\0'; |
| 1110 | |
| 1111 | /* Eat the rest of the line and finish it. */ |
| 1112 | while (c != '\n' && c != EOF) |
| 1113 | c = getc (file); |
| 1114 | goto end_of_line; |
| 1115 | } |
| 1116 | |
| 1117 | if (len != 0) |
| 1118 | fatal (_("%s:%d: premature end of file"), filename, lineno); |
| 1119 | |
| 1120 | free (buf); |
| 1121 | } |
| 1122 | |
| 1123 | /* Copy object file IBFD onto OBFD. |
| 1124 | Returns TRUE upon success, FALSE otherwise. */ |
| 1125 | |
| 1126 | static bfd_boolean |
| 1127 | copy_object (bfd *ibfd, bfd *obfd) |
| 1128 | { |
| 1129 | bfd_vma start; |
| 1130 | long symcount; |
| 1131 | asection **osections = NULL; |
| 1132 | asection *gnu_debuglink_section = NULL; |
| 1133 | bfd_size_type *gaps = NULL; |
| 1134 | bfd_size_type max_gap = 0; |
| 1135 | long symsize; |
| 1136 | void *dhandle; |
| 1137 | enum bfd_architecture iarch; |
| 1138 | unsigned int imach; |
| 1139 | |
| 1140 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder |
| 1141 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
| 1142 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
| 1143 | fatal (_("Unable to change endianness of input file(s)")); |
| 1144 | |
| 1145 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 1146 | { |
| 1147 | bfd_nonfatal (bfd_get_filename (obfd)); |
| 1148 | return FALSE; |
| 1149 | } |
| 1150 | |
| 1151 | if (verbose) |
| 1152 | printf (_("copy from %s(%s) to %s(%s)\n"), |
| 1153 | bfd_get_filename (ibfd), bfd_get_target (ibfd), |
| 1154 | bfd_get_filename (obfd), bfd_get_target (obfd)); |
| 1155 | |
| 1156 | if (set_start_set) |
| 1157 | start = set_start; |
| 1158 | else |
| 1159 | start = bfd_get_start_address (ibfd); |
| 1160 | start += change_start; |
| 1161 | |
| 1162 | /* Neither the start address nor the flags |
| 1163 | need to be set for a core file. */ |
| 1164 | if (bfd_get_format (obfd) != bfd_core) |
| 1165 | { |
| 1166 | flagword flags; |
| 1167 | |
| 1168 | flags = bfd_get_file_flags (ibfd); |
| 1169 | flags |= bfd_flags_to_set; |
| 1170 | flags &= ~bfd_flags_to_clear; |
| 1171 | flags &= bfd_applicable_file_flags (obfd); |
| 1172 | |
| 1173 | if (!bfd_set_start_address (obfd, start) |
| 1174 | || !bfd_set_file_flags (obfd, flags)) |
| 1175 | { |
| 1176 | bfd_nonfatal (bfd_get_filename (ibfd)); |
| 1177 | return FALSE; |
| 1178 | } |
| 1179 | } |
| 1180 | |
| 1181 | /* Copy architecture of input file to output file. */ |
| 1182 | iarch = bfd_get_arch (ibfd); |
| 1183 | imach = bfd_get_mach (ibfd); |
| 1184 | if (!bfd_set_arch_mach (obfd, iarch, imach) |
| 1185 | && (ibfd->target_defaulted |
| 1186 | || bfd_get_arch (ibfd) != bfd_get_arch (obfd))) |
| 1187 | { |
| 1188 | if (bfd_get_arch (ibfd) == bfd_arch_unknown) |
| 1189 | fatal (_("Unable to recognise the format of the input file %s"), |
| 1190 | bfd_get_filename (ibfd)); |
| 1191 | else |
| 1192 | { |
| 1193 | non_fatal (_("Warning: Output file cannot represent architecture %s"), |
| 1194 | bfd_printable_arch_mach (bfd_get_arch (ibfd), |
| 1195 | bfd_get_mach (ibfd))); |
| 1196 | return FALSE; |
| 1197 | } |
| 1198 | } |
| 1199 | |
| 1200 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 1201 | { |
| 1202 | bfd_nonfatal (bfd_get_filename (ibfd)); |
| 1203 | return FALSE; |
| 1204 | } |
| 1205 | |
| 1206 | if (isympp) |
| 1207 | free (isympp); |
| 1208 | |
| 1209 | if (osympp != isympp) |
| 1210 | free (osympp); |
| 1211 | |
| 1212 | /* BFD mandates that all output sections be created and sizes set before |
| 1213 | any output is done. Thus, we traverse all sections multiple times. */ |
| 1214 | bfd_map_over_sections (ibfd, setup_section, obfd); |
| 1215 | |
| 1216 | setup_bfd_headers (ibfd, obfd); |
| 1217 | |
| 1218 | if (add_sections != NULL) |
| 1219 | { |
| 1220 | struct section_add *padd; |
| 1221 | struct section_list *pset; |
| 1222 | |
| 1223 | for (padd = add_sections; padd != NULL; padd = padd->next) |
| 1224 | { |
| 1225 | flagword flags; |
| 1226 | |
| 1227 | padd->section = bfd_make_section (obfd, padd->name); |
| 1228 | if (padd->section == NULL) |
| 1229 | { |
| 1230 | non_fatal (_("can't create section `%s': %s"), |
| 1231 | padd->name, bfd_errmsg (bfd_get_error ())); |
| 1232 | return FALSE; |
| 1233 | } |
| 1234 | |
| 1235 | if (! bfd_set_section_size (obfd, padd->section, padd->size)) |
| 1236 | { |
| 1237 | bfd_nonfatal (bfd_get_filename (obfd)); |
| 1238 | return FALSE; |
| 1239 | } |
| 1240 | |
| 1241 | pset = find_section_list (padd->name, FALSE); |
| 1242 | if (pset != NULL) |
| 1243 | pset->used = TRUE; |
| 1244 | |
| 1245 | if (pset != NULL && pset->set_flags) |
| 1246 | flags = pset->flags | SEC_HAS_CONTENTS; |
| 1247 | else |
| 1248 | flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA; |
| 1249 | |
| 1250 | if (! bfd_set_section_flags (obfd, padd->section, flags)) |
| 1251 | { |
| 1252 | bfd_nonfatal (bfd_get_filename (obfd)); |
| 1253 | return FALSE; |
| 1254 | } |
| 1255 | |
| 1256 | if (pset != NULL) |
| 1257 | { |
| 1258 | if (pset->change_vma != CHANGE_IGNORE) |
| 1259 | if (! bfd_set_section_vma (obfd, padd->section, |
| 1260 | pset->vma_val)) |
| 1261 | { |
| 1262 | bfd_nonfatal (bfd_get_filename (obfd)); |
| 1263 | return FALSE; |
| 1264 | } |
| 1265 | |
| 1266 | if (pset->change_lma != CHANGE_IGNORE) |
| 1267 | { |
| 1268 | padd->section->lma = pset->lma_val; |
| 1269 | |
| 1270 | if (! bfd_set_section_alignment |
| 1271 | (obfd, padd->section, |
| 1272 | bfd_section_alignment (obfd, padd->section))) |
| 1273 | { |
| 1274 | bfd_nonfatal (bfd_get_filename (obfd)); |
| 1275 | return FALSE; |
| 1276 | } |
| 1277 | } |
| 1278 | } |
| 1279 | } |
| 1280 | } |
| 1281 | |
| 1282 | if (gnu_debuglink_filename != NULL) |
| 1283 | { |
| 1284 | gnu_debuglink_section = bfd_create_gnu_debuglink_section |
| 1285 | (obfd, gnu_debuglink_filename); |
| 1286 | |
| 1287 | if (gnu_debuglink_section == NULL) |
| 1288 | { |
| 1289 | bfd_nonfatal (gnu_debuglink_filename); |
| 1290 | return FALSE; |
| 1291 | } |
| 1292 | } |
| 1293 | |
| 1294 | if (bfd_count_sections (obfd) == 0) |
| 1295 | { |
| 1296 | non_fatal (_("there are no sections to be copied!")); |
| 1297 | return FALSE; |
| 1298 | } |
| 1299 | |
| 1300 | if (gap_fill_set || pad_to_set) |
| 1301 | { |
| 1302 | asection **set; |
| 1303 | unsigned int c, i; |
| 1304 | |
| 1305 | /* We must fill in gaps between the sections and/or we must pad |
| 1306 | the last section to a specified address. We do this by |
| 1307 | grabbing a list of the sections, sorting them by VMA, and |
| 1308 | increasing the section sizes as required to fill the gaps. |
| 1309 | We write out the gap contents below. */ |
| 1310 | |
| 1311 | c = bfd_count_sections (obfd); |
| 1312 | osections = xmalloc (c * sizeof (asection *)); |
| 1313 | set = osections; |
| 1314 | bfd_map_over_sections (obfd, get_sections, &set); |
| 1315 | |
| 1316 | qsort (osections, c, sizeof (asection *), compare_section_lma); |
| 1317 | |
| 1318 | gaps = xmalloc (c * sizeof (bfd_size_type)); |
| 1319 | memset (gaps, 0, c * sizeof (bfd_size_type)); |
| 1320 | |
| 1321 | if (gap_fill_set) |
| 1322 | { |
| 1323 | for (i = 0; i < c - 1; i++) |
| 1324 | { |
| 1325 | flagword flags; |
| 1326 | bfd_size_type size; |
| 1327 | bfd_vma gap_start, gap_stop; |
| 1328 | |
| 1329 | flags = bfd_get_section_flags (obfd, osections[i]); |
| 1330 | if ((flags & SEC_HAS_CONTENTS) == 0 |
| 1331 | || (flags & SEC_LOAD) == 0) |
| 1332 | continue; |
| 1333 | |
| 1334 | size = bfd_section_size (obfd, osections[i]); |
| 1335 | gap_start = bfd_section_lma (obfd, osections[i]) + size; |
| 1336 | gap_stop = bfd_section_lma (obfd, osections[i + 1]); |
| 1337 | if (gap_start < gap_stop) |
| 1338 | { |
| 1339 | if (! bfd_set_section_size (obfd, osections[i], |
| 1340 | size + (gap_stop - gap_start))) |
| 1341 | { |
| 1342 | non_fatal (_("Can't fill gap after %s: %s"), |
| 1343 | bfd_get_section_name (obfd, osections[i]), |
| 1344 | bfd_errmsg (bfd_get_error ())); |
| 1345 | status = 1; |
| 1346 | break; |
| 1347 | } |
| 1348 | gaps[i] = gap_stop - gap_start; |
| 1349 | if (max_gap < gap_stop - gap_start) |
| 1350 | max_gap = gap_stop - gap_start; |
| 1351 | } |
| 1352 | } |
| 1353 | } |
| 1354 | |
| 1355 | if (pad_to_set) |
| 1356 | { |
| 1357 | bfd_vma lma; |
| 1358 | bfd_size_type size; |
| 1359 | |
| 1360 | lma = bfd_section_lma (obfd, osections[c - 1]); |
| 1361 | size = bfd_section_size (obfd, osections[c - 1]); |
| 1362 | if (lma + size < pad_to) |
| 1363 | { |
| 1364 | if (! bfd_set_section_size (obfd, osections[c - 1], |
| 1365 | pad_to - lma)) |
| 1366 | { |
| 1367 | non_fatal (_("Can't add padding to %s: %s"), |
| 1368 | bfd_get_section_name (obfd, osections[c - 1]), |
| 1369 | bfd_errmsg (bfd_get_error ())); |
| 1370 | status = 1; |
| 1371 | } |
| 1372 | else |
| 1373 | { |
| 1374 | gaps[c - 1] = pad_to - (lma + size); |
| 1375 | if (max_gap < pad_to - (lma + size)) |
| 1376 | max_gap = pad_to - (lma + size); |
| 1377 | } |
| 1378 | } |
| 1379 | } |
| 1380 | } |
| 1381 | |
| 1382 | /* Symbol filtering must happen after the output sections |
| 1383 | have been created, but before their contents are set. */ |
| 1384 | dhandle = NULL; |
| 1385 | symsize = bfd_get_symtab_upper_bound (ibfd); |
| 1386 | if (symsize < 0) |
| 1387 | { |
| 1388 | bfd_nonfatal (bfd_get_filename (ibfd)); |
| 1389 | return FALSE; |
| 1390 | } |
| 1391 | |
| 1392 | osympp = isympp = xmalloc (symsize); |
| 1393 | symcount = bfd_canonicalize_symtab (ibfd, isympp); |
| 1394 | if (symcount < 0) |
| 1395 | { |
| 1396 | bfd_nonfatal (bfd_get_filename (ibfd)); |
| 1397 | return FALSE; |
| 1398 | } |
| 1399 | |
| 1400 | if (convert_debugging) |
| 1401 | dhandle = read_debugging_info (ibfd, isympp, symcount); |
| 1402 | |
| 1403 | if (strip_symbols == STRIP_DEBUG |
| 1404 | || strip_symbols == STRIP_ALL |
| 1405 | || strip_symbols == STRIP_UNNEEDED |
| 1406 | || strip_symbols == STRIP_NONDEBUG |
| 1407 | || discard_locals != LOCALS_UNDEF |
| 1408 | || strip_specific_list != NULL |
| 1409 | || keep_specific_list != NULL |
| 1410 | || localize_specific_list != NULL |
| 1411 | || globalize_specific_list != NULL |
| 1412 | || keepglobal_specific_list != NULL |
| 1413 | || weaken_specific_list != NULL |
| 1414 | || prefix_symbols_string |
| 1415 | || sections_removed |
| 1416 | || sections_copied |
| 1417 | || convert_debugging |
| 1418 | || change_leading_char |
| 1419 | || remove_leading_char |
| 1420 | || redefine_sym_list |
| 1421 | || weaken) |
| 1422 | { |
| 1423 | /* Mark symbols used in output relocations so that they |
| 1424 | are kept, even if they are local labels or static symbols. |
| 1425 | |
| 1426 | Note we iterate over the input sections examining their |
| 1427 | relocations since the relocations for the output sections |
| 1428 | haven't been set yet. mark_symbols_used_in_relocations will |
| 1429 | ignore input sections which have no corresponding output |
| 1430 | section. */ |
| 1431 | if (strip_symbols != STRIP_ALL) |
| 1432 | bfd_map_over_sections (ibfd, |
| 1433 | mark_symbols_used_in_relocations, |
| 1434 | isympp); |
| 1435 | osympp = xmalloc ((symcount + 1) * sizeof (asymbol *)); |
| 1436 | symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount); |
| 1437 | } |
| 1438 | |
| 1439 | if (convert_debugging && dhandle != NULL) |
| 1440 | { |
| 1441 | if (! write_debugging_info (obfd, dhandle, &symcount, &osympp)) |
| 1442 | { |
| 1443 | status = 1; |
| 1444 | return FALSE; |
| 1445 | } |
| 1446 | } |
| 1447 | |
| 1448 | bfd_set_symtab (obfd, osympp, symcount); |
| 1449 | |
| 1450 | /* This has to happen after the symbol table has been set. */ |
| 1451 | bfd_map_over_sections (ibfd, copy_section, obfd); |
| 1452 | |
| 1453 | if (add_sections != NULL) |
| 1454 | { |
| 1455 | struct section_add *padd; |
| 1456 | |
| 1457 | for (padd = add_sections; padd != NULL; padd = padd->next) |
| 1458 | { |
| 1459 | if (! bfd_set_section_contents (obfd, padd->section, padd->contents, |
| 1460 | 0, padd->size)) |
| 1461 | { |
| 1462 | bfd_nonfatal (bfd_get_filename (obfd)); |
| 1463 | return FALSE; |
| 1464 | } |
| 1465 | } |
| 1466 | } |
| 1467 | |
| 1468 | if (gnu_debuglink_filename != NULL) |
| 1469 | { |
| 1470 | if (! bfd_fill_in_gnu_debuglink_section |
| 1471 | (obfd, gnu_debuglink_section, gnu_debuglink_filename)) |
| 1472 | { |
| 1473 | bfd_nonfatal (gnu_debuglink_filename); |
| 1474 | return FALSE; |
| 1475 | } |
| 1476 | } |
| 1477 | |
| 1478 | if (gap_fill_set || pad_to_set) |
| 1479 | { |
| 1480 | bfd_byte *buf; |
| 1481 | int c, i; |
| 1482 | |
| 1483 | /* Fill in the gaps. */ |
| 1484 | if (max_gap > 8192) |
| 1485 | max_gap = 8192; |
| 1486 | buf = xmalloc (max_gap); |
| 1487 | memset (buf, gap_fill, max_gap); |
| 1488 | |
| 1489 | c = bfd_count_sections (obfd); |
| 1490 | for (i = 0; i < c; i++) |
| 1491 | { |
| 1492 | if (gaps[i] != 0) |
| 1493 | { |
| 1494 | bfd_size_type left; |
| 1495 | file_ptr off; |
| 1496 | |
| 1497 | left = gaps[i]; |
| 1498 | off = bfd_section_size (obfd, osections[i]) - left; |
| 1499 | |
| 1500 | while (left > 0) |
| 1501 | { |
| 1502 | bfd_size_type now; |
| 1503 | |
| 1504 | if (left > 8192) |
| 1505 | now = 8192; |
| 1506 | else |
| 1507 | now = left; |
| 1508 | |
| 1509 | if (! bfd_set_section_contents (obfd, osections[i], buf, |
| 1510 | off, now)) |
| 1511 | { |
| 1512 | bfd_nonfatal (bfd_get_filename (obfd)); |
| 1513 | return FALSE; |
| 1514 | } |
| 1515 | |
| 1516 | left -= now; |
| 1517 | off += now; |
| 1518 | } |
| 1519 | } |
| 1520 | } |
| 1521 | } |
| 1522 | |
| 1523 | /* Allow the BFD backend to copy any private data it understands |
| 1524 | from the input BFD to the output BFD. This is done last to |
| 1525 | permit the routine to look at the filtered symbol table, which is |
| 1526 | important for the ECOFF code at least. */ |
| 1527 | if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour |
| 1528 | && strip_symbols == STRIP_NONDEBUG) |
| 1529 | /* Do not copy the private data when creating an ELF format |
| 1530 | debug info file. We do not want the program headers. */ |
| 1531 | ; |
| 1532 | else if (! bfd_copy_private_bfd_data (ibfd, obfd)) |
| 1533 | { |
| 1534 | non_fatal (_("%s: error copying private BFD data: %s"), |
| 1535 | bfd_get_filename (obfd), |
| 1536 | bfd_errmsg (bfd_get_error ())); |
| 1537 | return FALSE; |
| 1538 | } |
| 1539 | |
| 1540 | /* Switch to the alternate machine code. We have to do this at the |
| 1541 | very end, because we only initialize the header when we create |
| 1542 | the first section. */ |
| 1543 | if (use_alt_mach_code != 0 |
| 1544 | && ! bfd_alt_mach_code (obfd, use_alt_mach_code)) |
| 1545 | non_fatal (_("unknown alternate machine code, ignored")); |
| 1546 | |
| 1547 | return TRUE; |
| 1548 | } |
| 1549 | |
| 1550 | #undef MKDIR |
| 1551 | #if defined (_WIN32) && !defined (__CYGWIN32__) |
| 1552 | #define MKDIR(DIR, MODE) mkdir (DIR) |
| 1553 | #else |
| 1554 | #define MKDIR(DIR, MODE) mkdir (DIR, MODE) |
| 1555 | #endif |
| 1556 | |
| 1557 | /* Read each archive element in turn from IBFD, copy the |
| 1558 | contents to temp file, and keep the temp file handle. */ |
| 1559 | |
| 1560 | static void |
| 1561 | copy_archive (bfd *ibfd, bfd *obfd, const char *output_target) |
| 1562 | { |
| 1563 | struct name_list |
| 1564 | { |
| 1565 | struct name_list *next; |
| 1566 | const char *name; |
| 1567 | bfd *obfd; |
| 1568 | } *list, *l; |
| 1569 | bfd **ptr = &obfd->archive_head; |
| 1570 | bfd *this_element; |
| 1571 | char *dir = make_tempname (bfd_get_filename (obfd)); |
| 1572 | |
| 1573 | /* Make a temp directory to hold the contents. */ |
| 1574 | if (MKDIR (dir, 0700) != 0) |
| 1575 | fatal (_("cannot mkdir %s for archive copying (error: %s)"), |
| 1576 | dir, strerror (errno)); |
| 1577 | |
| 1578 | obfd->has_armap = ibfd->has_armap; |
| 1579 | |
| 1580 | list = NULL; |
| 1581 | |
| 1582 | this_element = bfd_openr_next_archived_file (ibfd, NULL); |
| 1583 | |
| 1584 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 1585 | RETURN_NONFATAL (bfd_get_filename (obfd)); |
| 1586 | |
| 1587 | while (!status && this_element != NULL) |
| 1588 | { |
| 1589 | char *output_name; |
| 1590 | bfd *output_bfd; |
| 1591 | bfd *last_element; |
| 1592 | struct stat buf; |
| 1593 | int stat_status = 0; |
| 1594 | bfd_boolean delete = TRUE; |
| 1595 | |
| 1596 | /* Create an output file for this member. */ |
| 1597 | output_name = concat (dir, "/", |
| 1598 | bfd_get_filename (this_element), (char *) 0); |
| 1599 | |
| 1600 | /* If the file already exists, make another temp dir. */ |
| 1601 | if (stat (output_name, &buf) >= 0) |
| 1602 | { |
| 1603 | output_name = make_tempname (output_name); |
| 1604 | if (MKDIR (output_name, 0700) != 0) |
| 1605 | fatal (_("cannot mkdir %s for archive copying (error: %s)"), |
| 1606 | output_name, strerror (errno)); |
| 1607 | |
| 1608 | l = xmalloc (sizeof (struct name_list)); |
| 1609 | l->name = output_name; |
| 1610 | l->next = list; |
| 1611 | l->obfd = NULL; |
| 1612 | list = l; |
| 1613 | output_name = concat (output_name, "/", |
| 1614 | bfd_get_filename (this_element), (char *) 0); |
| 1615 | } |
| 1616 | |
| 1617 | output_bfd = bfd_openw (output_name, output_target); |
| 1618 | if (preserve_dates) |
| 1619 | { |
| 1620 | stat_status = bfd_stat_arch_elt (this_element, &buf); |
| 1621 | |
| 1622 | if (stat_status != 0) |
| 1623 | non_fatal (_("internal stat error on %s"), |
| 1624 | bfd_get_filename (this_element)); |
| 1625 | } |
| 1626 | |
| 1627 | l = xmalloc (sizeof (struct name_list)); |
| 1628 | l->name = output_name; |
| 1629 | l->next = list; |
| 1630 | list = l; |
| 1631 | |
| 1632 | if (output_bfd == NULL) |
| 1633 | RETURN_NONFATAL (output_name); |
| 1634 | |
| 1635 | if (bfd_check_format (this_element, bfd_object)) |
| 1636 | delete = ! copy_object (this_element, output_bfd); |
| 1637 | |
| 1638 | if (!bfd_close (output_bfd)) |
| 1639 | { |
| 1640 | bfd_nonfatal (bfd_get_filename (output_bfd)); |
| 1641 | /* Error in new object file. Don't change archive. */ |
| 1642 | status = 1; |
| 1643 | } |
| 1644 | |
| 1645 | if (delete) |
| 1646 | { |
| 1647 | unlink (output_name); |
| 1648 | status = 1; |
| 1649 | } |
| 1650 | else |
| 1651 | { |
| 1652 | if (preserve_dates && stat_status == 0) |
| 1653 | set_times (output_name, &buf); |
| 1654 | |
| 1655 | /* Open the newly output file and attach to our list. */ |
| 1656 | output_bfd = bfd_openr (output_name, output_target); |
| 1657 | |
| 1658 | l->obfd = output_bfd; |
| 1659 | |
| 1660 | *ptr = output_bfd; |
| 1661 | ptr = &output_bfd->next; |
| 1662 | |
| 1663 | last_element = this_element; |
| 1664 | |
| 1665 | this_element = bfd_openr_next_archived_file (ibfd, last_element); |
| 1666 | |
| 1667 | bfd_close (last_element); |
| 1668 | } |
| 1669 | } |
| 1670 | *ptr = NULL; |
| 1671 | |
| 1672 | if (!bfd_close (obfd)) |
| 1673 | RETURN_NONFATAL (bfd_get_filename (obfd)); |
| 1674 | |
| 1675 | if (!bfd_close (ibfd)) |
| 1676 | RETURN_NONFATAL (bfd_get_filename (ibfd)); |
| 1677 | |
| 1678 | /* Delete all the files that we opened. */ |
| 1679 | for (l = list; l != NULL; l = l->next) |
| 1680 | { |
| 1681 | if (l->obfd == NULL) |
| 1682 | rmdir (l->name); |
| 1683 | else |
| 1684 | { |
| 1685 | bfd_close (l->obfd); |
| 1686 | unlink (l->name); |
| 1687 | } |
| 1688 | } |
| 1689 | rmdir (dir); |
| 1690 | } |
| 1691 | |
| 1692 | /* The top-level control. */ |
| 1693 | |
| 1694 | static void |
| 1695 | copy_file (const char *input_filename, const char *output_filename, |
| 1696 | const char *input_target, const char *output_target) |
| 1697 | { |
| 1698 | bfd *ibfd; |
| 1699 | char **obj_matching; |
| 1700 | char **core_matching; |
| 1701 | |
| 1702 | if (get_file_size (input_filename) < 1) |
| 1703 | { |
| 1704 | non_fatal (_("error: the input file '%s' is empty"), input_filename); |
| 1705 | status = 1; |
| 1706 | return; |
| 1707 | } |
| 1708 | |
| 1709 | /* To allow us to do "strip *" without dying on the first |
| 1710 | non-object file, failures are nonfatal. */ |
| 1711 | ibfd = bfd_openr (input_filename, input_target); |
| 1712 | if (ibfd == NULL) |
| 1713 | RETURN_NONFATAL (input_filename); |
| 1714 | |
| 1715 | if (bfd_check_format (ibfd, bfd_archive)) |
| 1716 | { |
| 1717 | bfd *obfd; |
| 1718 | |
| 1719 | /* bfd_get_target does not return the correct value until |
| 1720 | bfd_check_format succeeds. */ |
| 1721 | if (output_target == NULL) |
| 1722 | output_target = bfd_get_target (ibfd); |
| 1723 | |
| 1724 | obfd = bfd_openw (output_filename, output_target); |
| 1725 | if (obfd == NULL) |
| 1726 | RETURN_NONFATAL (output_filename); |
| 1727 | |
| 1728 | copy_archive (ibfd, obfd, output_target); |
| 1729 | } |
| 1730 | else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching)) |
| 1731 | { |
| 1732 | bfd *obfd; |
| 1733 | bfd_boolean delete; |
| 1734 | do_copy: |
| 1735 | |
| 1736 | /* bfd_get_target does not return the correct value until |
| 1737 | bfd_check_format succeeds. */ |
| 1738 | if (output_target == NULL) |
| 1739 | output_target = bfd_get_target (ibfd); |
| 1740 | |
| 1741 | obfd = bfd_openw (output_filename, output_target); |
| 1742 | if (obfd == NULL) |
| 1743 | RETURN_NONFATAL (output_filename); |
| 1744 | |
| 1745 | delete = ! copy_object (ibfd, obfd); |
| 1746 | |
| 1747 | if (!bfd_close (obfd)) |
| 1748 | RETURN_NONFATAL (output_filename); |
| 1749 | |
| 1750 | if (!bfd_close (ibfd)) |
| 1751 | RETURN_NONFATAL (input_filename); |
| 1752 | |
| 1753 | if (delete) |
| 1754 | { |
| 1755 | unlink_if_ordinary (output_filename); |
| 1756 | status = 1; |
| 1757 | } |
| 1758 | } |
| 1759 | else |
| 1760 | { |
| 1761 | bfd_error_type obj_error = bfd_get_error (); |
| 1762 | bfd_error_type core_error; |
| 1763 | |
| 1764 | if (bfd_check_format_matches (ibfd, bfd_core, &core_matching)) |
| 1765 | { |
| 1766 | /* This probably can't happen.. */ |
| 1767 | if (obj_error == bfd_error_file_ambiguously_recognized) |
| 1768 | free (obj_matching); |
| 1769 | goto do_copy; |
| 1770 | } |
| 1771 | |
| 1772 | core_error = bfd_get_error (); |
| 1773 | /* Report the object error in preference to the core error. */ |
| 1774 | if (obj_error != core_error) |
| 1775 | bfd_set_error (obj_error); |
| 1776 | |
| 1777 | bfd_nonfatal (input_filename); |
| 1778 | |
| 1779 | if (obj_error == bfd_error_file_ambiguously_recognized) |
| 1780 | { |
| 1781 | list_matching_formats (obj_matching); |
| 1782 | free (obj_matching); |
| 1783 | } |
| 1784 | if (core_error == bfd_error_file_ambiguously_recognized) |
| 1785 | { |
| 1786 | list_matching_formats (core_matching); |
| 1787 | free (core_matching); |
| 1788 | } |
| 1789 | |
| 1790 | status = 1; |
| 1791 | } |
| 1792 | } |
| 1793 | |
| 1794 | /* Add a name to the section renaming list. */ |
| 1795 | |
| 1796 | static void |
| 1797 | add_section_rename (const char * old_name, const char * new_name, |
| 1798 | flagword flags) |
| 1799 | { |
| 1800 | section_rename * rename; |
| 1801 | |
| 1802 | /* Check for conflicts first. */ |
| 1803 | for (rename = section_rename_list; rename != NULL; rename = rename->next) |
| 1804 | if (strcmp (rename->old_name, old_name) == 0) |
| 1805 | { |
| 1806 | /* Silently ignore duplicate definitions. */ |
| 1807 | if (strcmp (rename->new_name, new_name) == 0 |
| 1808 | && rename->flags == flags) |
| 1809 | return; |
| 1810 | |
| 1811 | fatal (_("Multiple renames of section %s"), old_name); |
| 1812 | } |
| 1813 | |
| 1814 | rename = xmalloc (sizeof (* rename)); |
| 1815 | |
| 1816 | rename->old_name = old_name; |
| 1817 | rename->new_name = new_name; |
| 1818 | rename->flags = flags; |
| 1819 | rename->next = section_rename_list; |
| 1820 | |
| 1821 | section_rename_list = rename; |
| 1822 | } |
| 1823 | |
| 1824 | /* Check the section rename list for a new name of the input section |
| 1825 | ISECTION. Return the new name if one is found. |
| 1826 | Also set RETURNED_FLAGS to the flags to be used for this section. */ |
| 1827 | |
| 1828 | static const char * |
| 1829 | find_section_rename (bfd * ibfd ATTRIBUTE_UNUSED, sec_ptr isection, |
| 1830 | flagword * returned_flags) |
| 1831 | { |
| 1832 | const char * old_name = bfd_section_name (ibfd, isection); |
| 1833 | section_rename * rename; |
| 1834 | |
| 1835 | /* Default to using the flags of the input section. */ |
| 1836 | * returned_flags = bfd_get_section_flags (ibfd, isection); |
| 1837 | |
| 1838 | for (rename = section_rename_list; rename != NULL; rename = rename->next) |
| 1839 | if (strcmp (rename->old_name, old_name) == 0) |
| 1840 | { |
| 1841 | if (rename->flags != (flagword) -1) |
| 1842 | * returned_flags = rename->flags; |
| 1843 | |
| 1844 | return rename->new_name; |
| 1845 | } |
| 1846 | |
| 1847 | return old_name; |
| 1848 | } |
| 1849 | |
| 1850 | /* Once each of the sections is copied, we may still need to do some |
| 1851 | finalization work for private section headers. Do that here. */ |
| 1852 | |
| 1853 | static void |
| 1854 | setup_bfd_headers (bfd *ibfd, bfd *obfd) |
| 1855 | { |
| 1856 | const char *err; |
| 1857 | |
| 1858 | /* Allow the BFD backend to copy any private data it understands |
| 1859 | from the input section to the output section. */ |
| 1860 | if (! bfd_copy_private_header_data (ibfd, obfd)) |
| 1861 | { |
| 1862 | err = _("private header data"); |
| 1863 | goto loser; |
| 1864 | } |
| 1865 | |
| 1866 | /* All went well. */ |
| 1867 | return; |
| 1868 | |
| 1869 | loser: |
| 1870 | non_fatal (_("%s: error in %s: %s"), |
| 1871 | bfd_get_filename (ibfd), |
| 1872 | err, bfd_errmsg (bfd_get_error ())); |
| 1873 | status = 1; |
| 1874 | } |
| 1875 | |
| 1876 | /* Create a section in OBFD with the same |
| 1877 | name and attributes as ISECTION in IBFD. */ |
| 1878 | |
| 1879 | static void |
| 1880 | setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) |
| 1881 | { |
| 1882 | bfd *obfd = obfdarg; |
| 1883 | struct section_list *p; |
| 1884 | sec_ptr osection; |
| 1885 | bfd_size_type size; |
| 1886 | bfd_vma vma; |
| 1887 | bfd_vma lma; |
| 1888 | flagword flags; |
| 1889 | const char *err; |
| 1890 | const char * name; |
| 1891 | char *prefix = NULL; |
| 1892 | |
| 1893 | if (is_strip_section (ibfd, isection)) |
| 1894 | return; |
| 1895 | |
| 1896 | p = find_section_list (bfd_section_name (ibfd, isection), FALSE); |
| 1897 | if (p != NULL) |
| 1898 | p->used = TRUE; |
| 1899 | |
| 1900 | /* Get the, possibly new, name of the output section. */ |
| 1901 | name = find_section_rename (ibfd, isection, & flags); |
| 1902 | |
| 1903 | /* Prefix sections. */ |
| 1904 | if ((prefix_alloc_sections_string) |
| 1905 | && (bfd_get_section_flags (ibfd, isection) & SEC_ALLOC)) |
| 1906 | prefix = prefix_alloc_sections_string; |
| 1907 | else if (prefix_sections_string) |
| 1908 | prefix = prefix_sections_string; |
| 1909 | |
| 1910 | if (prefix) |
| 1911 | { |
| 1912 | char *n; |
| 1913 | |
| 1914 | n = xmalloc (strlen (prefix) + strlen (name) + 1); |
| 1915 | strcpy (n, prefix); |
| 1916 | strcat (n, name); |
| 1917 | name = n; |
| 1918 | } |
| 1919 | |
| 1920 | osection = bfd_make_section_anyway (obfd, name); |
| 1921 | |
| 1922 | if (osection == NULL) |
| 1923 | { |
| 1924 | err = _("making"); |
| 1925 | goto loser; |
| 1926 | } |
| 1927 | |
| 1928 | size = bfd_section_size (ibfd, isection); |
| 1929 | if (copy_byte >= 0) |
| 1930 | size = (size + interleave - 1) / interleave; |
| 1931 | if (! bfd_set_section_size (obfd, osection, size)) |
| 1932 | { |
| 1933 | err = _("size"); |
| 1934 | goto loser; |
| 1935 | } |
| 1936 | |
| 1937 | vma = bfd_section_vma (ibfd, isection); |
| 1938 | if (p != NULL && p->change_vma == CHANGE_MODIFY) |
| 1939 | vma += p->vma_val; |
| 1940 | else if (p != NULL && p->change_vma == CHANGE_SET) |
| 1941 | vma = p->vma_val; |
| 1942 | else |
| 1943 | vma += change_section_address; |
| 1944 | |
| 1945 | if (! bfd_set_section_vma (obfd, osection, vma)) |
| 1946 | { |
| 1947 | err = _("vma"); |
| 1948 | goto loser; |
| 1949 | } |
| 1950 | |
| 1951 | lma = isection->lma; |
| 1952 | if ((p != NULL) && p->change_lma != CHANGE_IGNORE) |
| 1953 | { |
| 1954 | if (p->change_lma == CHANGE_MODIFY) |
| 1955 | lma += p->lma_val; |
| 1956 | else if (p->change_lma == CHANGE_SET) |
| 1957 | lma = p->lma_val; |
| 1958 | else |
| 1959 | abort (); |
| 1960 | } |
| 1961 | else |
| 1962 | lma += change_section_address; |
| 1963 | |
| 1964 | osection->lma = lma; |
| 1965 | |
| 1966 | /* FIXME: This is probably not enough. If we change the LMA we |
| 1967 | may have to recompute the header for the file as well. */ |
| 1968 | if (!bfd_set_section_alignment (obfd, |
| 1969 | osection, |
| 1970 | bfd_section_alignment (ibfd, isection))) |
| 1971 | { |
| 1972 | err = _("alignment"); |
| 1973 | goto loser; |
| 1974 | } |
| 1975 | |
| 1976 | if (p != NULL && p->set_flags) |
| 1977 | flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC)); |
| 1978 | else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0) |
| 1979 | { |
| 1980 | flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD); |
| 1981 | if (obfd->xvec->flavour == bfd_target_elf_flavour) |
| 1982 | elf_section_type (osection) = SHT_NOBITS; |
| 1983 | } |
| 1984 | |
| 1985 | if (!bfd_set_section_flags (obfd, osection, flags)) |
| 1986 | { |
| 1987 | err = _("flags"); |
| 1988 | goto loser; |
| 1989 | } |
| 1990 | |
| 1991 | /* Copy merge entity size. */ |
| 1992 | osection->entsize = isection->entsize; |
| 1993 | |
| 1994 | /* This used to be mangle_section; we do here to avoid using |
| 1995 | bfd_get_section_by_name since some formats allow multiple |
| 1996 | sections with the same name. */ |
| 1997 | isection->output_section = osection; |
| 1998 | isection->output_offset = 0; |
| 1999 | |
| 2000 | /* Allow the BFD backend to copy any private data it understands |
| 2001 | from the input section to the output section. */ |
| 2002 | if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour |
| 2003 | && strip_symbols == STRIP_NONDEBUG) |
| 2004 | /* Do not copy the private data when creating an ELF format |
| 2005 | debug info file. We do not want the program headers. */ |
| 2006 | ; |
| 2007 | else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection)) |
| 2008 | { |
| 2009 | err = _("private data"); |
| 2010 | goto loser; |
| 2011 | } |
| 2012 | |
| 2013 | /* All went well. */ |
| 2014 | return; |
| 2015 | |
| 2016 | loser: |
| 2017 | non_fatal (_("%s: section `%s': error in %s: %s"), |
| 2018 | bfd_get_filename (ibfd), |
| 2019 | bfd_section_name (ibfd, isection), |
| 2020 | err, bfd_errmsg (bfd_get_error ())); |
| 2021 | status = 1; |
| 2022 | } |
| 2023 | |
| 2024 | /* Copy the data of input section ISECTION of IBFD |
| 2025 | to an output section with the same name in OBFD. |
| 2026 | If stripping then don't copy any relocation info. */ |
| 2027 | |
| 2028 | static void |
| 2029 | copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) |
| 2030 | { |
| 2031 | bfd *obfd = obfdarg; |
| 2032 | struct section_list *p; |
| 2033 | arelent **relpp; |
| 2034 | long relcount; |
| 2035 | sec_ptr osection; |
| 2036 | bfd_size_type size; |
| 2037 | long relsize; |
| 2038 | flagword flags; |
| 2039 | |
| 2040 | /* If we have already failed earlier on, |
| 2041 | do not keep on generating complaints now. */ |
| 2042 | if (status != 0) |
| 2043 | return; |
| 2044 | |
| 2045 | if (is_strip_section (ibfd, isection)) |
| 2046 | return; |
| 2047 | |
| 2048 | flags = bfd_get_section_flags (ibfd, isection); |
| 2049 | if ((flags & SEC_GROUP) != 0) |
| 2050 | return; |
| 2051 | |
| 2052 | osection = isection->output_section; |
| 2053 | size = bfd_get_section_size (isection); |
| 2054 | |
| 2055 | if (size == 0 || osection == 0) |
| 2056 | return; |
| 2057 | |
| 2058 | p = find_section_list (bfd_get_section_name (ibfd, isection), FALSE); |
| 2059 | |
| 2060 | /* Core files do not need to be relocated. */ |
| 2061 | if (bfd_get_format (obfd) == bfd_core) |
| 2062 | relsize = 0; |
| 2063 | else |
| 2064 | { |
| 2065 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| 2066 | |
| 2067 | if (relsize < 0) |
| 2068 | { |
| 2069 | /* Do not complain if the target does not support relocations. */ |
| 2070 | if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation) |
| 2071 | relsize = 0; |
| 2072 | else |
| 2073 | RETURN_NONFATAL (bfd_get_filename (ibfd)); |
| 2074 | } |
| 2075 | } |
| 2076 | |
| 2077 | if (relsize == 0) |
| 2078 | bfd_set_reloc (obfd, osection, NULL, 0); |
| 2079 | else |
| 2080 | { |
| 2081 | relpp = xmalloc (relsize); |
| 2082 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp); |
| 2083 | if (relcount < 0) |
| 2084 | RETURN_NONFATAL (bfd_get_filename (ibfd)); |
| 2085 | |
| 2086 | if (strip_symbols == STRIP_ALL) |
| 2087 | { |
| 2088 | /* Remove relocations which are not in |
| 2089 | keep_strip_specific_list. */ |
| 2090 | arelent **temp_relpp; |
| 2091 | long temp_relcount = 0; |
| 2092 | long i; |
| 2093 | |
| 2094 | temp_relpp = xmalloc (relsize); |
| 2095 | for (i = 0; i < relcount; i++) |
| 2096 | if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr), |
| 2097 | keep_specific_list)) |
| 2098 | temp_relpp [temp_relcount++] = relpp [i]; |
| 2099 | relcount = temp_relcount; |
| 2100 | free (relpp); |
| 2101 | relpp = temp_relpp; |
| 2102 | } |
| 2103 | |
| 2104 | bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount); |
| 2105 | if (relcount == 0) |
| 2106 | free (relpp); |
| 2107 | } |
| 2108 | |
| 2109 | if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS |
| 2110 | && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS) |
| 2111 | { |
| 2112 | void *memhunk = xmalloc (size); |
| 2113 | |
| 2114 | if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size)) |
| 2115 | RETURN_NONFATAL (bfd_get_filename (ibfd)); |
| 2116 | |
| 2117 | if (copy_byte >= 0) |
| 2118 | { |
| 2119 | /* Keep only every `copy_byte'th byte in MEMHUNK. */ |
| 2120 | char *from = (char *) memhunk + copy_byte; |
| 2121 | char *to = memhunk; |
| 2122 | char *end = (char *) memhunk + size; |
| 2123 | |
| 2124 | for (; from < end; from += interleave) |
| 2125 | *to++ = *from; |
| 2126 | |
| 2127 | size = (size + interleave - 1 - copy_byte) / interleave; |
| 2128 | osection->lma /= interleave; |
| 2129 | } |
| 2130 | |
| 2131 | if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size)) |
| 2132 | RETURN_NONFATAL (bfd_get_filename (obfd)); |
| 2133 | |
| 2134 | free (memhunk); |
| 2135 | } |
| 2136 | else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0) |
| 2137 | { |
| 2138 | void *memhunk = xmalloc (size); |
| 2139 | |
| 2140 | /* We don't permit the user to turn off the SEC_HAS_CONTENTS |
| 2141 | flag--they can just remove the section entirely and add it |
| 2142 | back again. However, we do permit them to turn on the |
| 2143 | SEC_HAS_CONTENTS flag, and take it to mean that the section |
| 2144 | contents should be zeroed out. */ |
| 2145 | |
| 2146 | memset (memhunk, 0, size); |
| 2147 | if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size)) |
| 2148 | RETURN_NONFATAL (bfd_get_filename (obfd)); |
| 2149 | free (memhunk); |
| 2150 | } |
| 2151 | } |
| 2152 | |
| 2153 | /* Get all the sections. This is used when --gap-fill or --pad-to is |
| 2154 | used. */ |
| 2155 | |
| 2156 | static void |
| 2157 | get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg) |
| 2158 | { |
| 2159 | asection ***secppp = secppparg; |
| 2160 | |
| 2161 | **secppp = osection; |
| 2162 | ++(*secppp); |
| 2163 | } |
| 2164 | |
| 2165 | /* Sort sections by VMA. This is called via qsort, and is used when |
| 2166 | --gap-fill or --pad-to is used. We force non loadable or empty |
| 2167 | sections to the front, where they are easier to ignore. */ |
| 2168 | |
| 2169 | static int |
| 2170 | compare_section_lma (const void *arg1, const void *arg2) |
| 2171 | { |
| 2172 | const asection *const *sec1 = arg1; |
| 2173 | const asection *const *sec2 = arg2; |
| 2174 | flagword flags1, flags2; |
| 2175 | |
| 2176 | /* Sort non loadable sections to the front. */ |
| 2177 | flags1 = (*sec1)->flags; |
| 2178 | flags2 = (*sec2)->flags; |
| 2179 | if ((flags1 & SEC_HAS_CONTENTS) == 0 |
| 2180 | || (flags1 & SEC_LOAD) == 0) |
| 2181 | { |
| 2182 | if ((flags2 & SEC_HAS_CONTENTS) != 0 |
| 2183 | && (flags2 & SEC_LOAD) != 0) |
| 2184 | return -1; |
| 2185 | } |
| 2186 | else |
| 2187 | { |
| 2188 | if ((flags2 & SEC_HAS_CONTENTS) == 0 |
| 2189 | || (flags2 & SEC_LOAD) == 0) |
| 2190 | return 1; |
| 2191 | } |
| 2192 | |
| 2193 | /* Sort sections by LMA. */ |
| 2194 | if ((*sec1)->lma > (*sec2)->lma) |
| 2195 | return 1; |
| 2196 | else if ((*sec1)->lma < (*sec2)->lma) |
| 2197 | return -1; |
| 2198 | |
| 2199 | /* Sort sections with the same LMA by size. */ |
| 2200 | if (bfd_get_section_size (*sec1) > bfd_get_section_size (*sec2)) |
| 2201 | return 1; |
| 2202 | else if (bfd_get_section_size (*sec1) < bfd_get_section_size (*sec2)) |
| 2203 | return -1; |
| 2204 | |
| 2205 | return 0; |
| 2206 | } |
| 2207 | |
| 2208 | /* Mark all the symbols which will be used in output relocations with |
| 2209 | the BSF_KEEP flag so that those symbols will not be stripped. |
| 2210 | |
| 2211 | Ignore relocations which will not appear in the output file. */ |
| 2212 | |
| 2213 | static void |
| 2214 | mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg) |
| 2215 | { |
| 2216 | asymbol **symbols = symbolsarg; |
| 2217 | long relsize; |
| 2218 | arelent **relpp; |
| 2219 | long relcount, i; |
| 2220 | |
| 2221 | /* Ignore an input section with no corresponding output section. */ |
| 2222 | if (isection->output_section == NULL) |
| 2223 | return; |
| 2224 | |
| 2225 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| 2226 | if (relsize < 0) |
| 2227 | { |
| 2228 | /* Do not complain if the target does not support relocations. */ |
| 2229 | if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation) |
| 2230 | return; |
| 2231 | bfd_fatal (bfd_get_filename (ibfd)); |
| 2232 | } |
| 2233 | |
| 2234 | if (relsize == 0) |
| 2235 | return; |
| 2236 | |
| 2237 | relpp = xmalloc (relsize); |
| 2238 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols); |
| 2239 | if (relcount < 0) |
| 2240 | bfd_fatal (bfd_get_filename (ibfd)); |
| 2241 | |
| 2242 | /* Examine each symbol used in a relocation. If it's not one of the |
| 2243 | special bfd section symbols, then mark it with BSF_KEEP. */ |
| 2244 | for (i = 0; i < relcount; i++) |
| 2245 | { |
| 2246 | if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol |
| 2247 | && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol |
| 2248 | && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol) |
| 2249 | (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP; |
| 2250 | } |
| 2251 | |
| 2252 | if (relpp != NULL) |
| 2253 | free (relpp); |
| 2254 | } |
| 2255 | |
| 2256 | /* Write out debugging information. */ |
| 2257 | |
| 2258 | static bfd_boolean |
| 2259 | write_debugging_info (bfd *obfd, void *dhandle, |
| 2260 | long *symcountp ATTRIBUTE_UNUSED, |
| 2261 | asymbol ***symppp ATTRIBUTE_UNUSED) |
| 2262 | { |
| 2263 | if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour) |
| 2264 | return write_ieee_debugging_info (obfd, dhandle); |
| 2265 | |
| 2266 | if (bfd_get_flavour (obfd) == bfd_target_coff_flavour |
| 2267 | || bfd_get_flavour (obfd) == bfd_target_elf_flavour) |
| 2268 | { |
| 2269 | bfd_byte *syms, *strings; |
| 2270 | bfd_size_type symsize, stringsize; |
| 2271 | asection *stabsec, *stabstrsec; |
| 2272 | |
| 2273 | if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms, |
| 2274 | &symsize, &strings, |
| 2275 | &stringsize)) |
| 2276 | return FALSE; |
| 2277 | |
| 2278 | stabsec = bfd_make_section (obfd, ".stab"); |
| 2279 | stabstrsec = bfd_make_section (obfd, ".stabstr"); |
| 2280 | if (stabsec == NULL |
| 2281 | || stabstrsec == NULL |
| 2282 | || ! bfd_set_section_size (obfd, stabsec, symsize) |
| 2283 | || ! bfd_set_section_size (obfd, stabstrsec, stringsize) |
| 2284 | || ! bfd_set_section_alignment (obfd, stabsec, 2) |
| 2285 | || ! bfd_set_section_alignment (obfd, stabstrsec, 0) |
| 2286 | || ! bfd_set_section_flags (obfd, stabsec, |
| 2287 | (SEC_HAS_CONTENTS |
| 2288 | | SEC_READONLY |
| 2289 | | SEC_DEBUGGING)) |
| 2290 | || ! bfd_set_section_flags (obfd, stabstrsec, |
| 2291 | (SEC_HAS_CONTENTS |
| 2292 | | SEC_READONLY |
| 2293 | | SEC_DEBUGGING))) |
| 2294 | { |
| 2295 | non_fatal (_("%s: can't create debugging section: %s"), |
| 2296 | bfd_get_filename (obfd), |
| 2297 | bfd_errmsg (bfd_get_error ())); |
| 2298 | return FALSE; |
| 2299 | } |
| 2300 | |
| 2301 | /* We can get away with setting the section contents now because |
| 2302 | the next thing the caller is going to do is copy over the |
| 2303 | real sections. We may someday have to split the contents |
| 2304 | setting out of this function. */ |
| 2305 | if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize) |
| 2306 | || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0, |
| 2307 | stringsize)) |
| 2308 | { |
| 2309 | non_fatal (_("%s: can't set debugging section contents: %s"), |
| 2310 | bfd_get_filename (obfd), |
| 2311 | bfd_errmsg (bfd_get_error ())); |
| 2312 | return FALSE; |
| 2313 | } |
| 2314 | |
| 2315 | return TRUE; |
| 2316 | } |
| 2317 | |
| 2318 | non_fatal (_("%s: don't know how to write debugging information for %s"), |
| 2319 | bfd_get_filename (obfd), bfd_get_target (obfd)); |
| 2320 | return FALSE; |
| 2321 | } |
| 2322 | |
| 2323 | static int |
| 2324 | strip_main (int argc, char *argv[]) |
| 2325 | { |
| 2326 | char *input_target = NULL; |
| 2327 | char *output_target = NULL; |
| 2328 | bfd_boolean show_version = FALSE; |
| 2329 | bfd_boolean formats_info = FALSE; |
| 2330 | int c; |
| 2331 | int i; |
| 2332 | struct section_list *p; |
| 2333 | char *output_file = NULL; |
| 2334 | |
| 2335 | while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVvw", |
| 2336 | strip_options, (int *) 0)) != EOF) |
| 2337 | { |
| 2338 | switch (c) |
| 2339 | { |
| 2340 | case 'I': |
| 2341 | input_target = optarg; |
| 2342 | break; |
| 2343 | case 'O': |
| 2344 | output_target = optarg; |
| 2345 | break; |
| 2346 | case 'F': |
| 2347 | input_target = output_target = optarg; |
| 2348 | break; |
| 2349 | case 'R': |
| 2350 | p = find_section_list (optarg, TRUE); |
| 2351 | p->remove = TRUE; |
| 2352 | sections_removed = TRUE; |
| 2353 | break; |
| 2354 | case 's': |
| 2355 | strip_symbols = STRIP_ALL; |
| 2356 | break; |
| 2357 | case 'S': |
| 2358 | case 'g': |
| 2359 | case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */ |
| 2360 | strip_symbols = STRIP_DEBUG; |
| 2361 | break; |
| 2362 | case OPTION_STRIP_UNNEEDED: |
| 2363 | strip_symbols = STRIP_UNNEEDED; |
| 2364 | break; |
| 2365 | case 'K': |
| 2366 | add_specific_symbol (optarg, &keep_specific_list); |
| 2367 | break; |
| 2368 | case 'N': |
| 2369 | add_specific_symbol (optarg, &strip_specific_list); |
| 2370 | break; |
| 2371 | case 'o': |
| 2372 | output_file = optarg; |
| 2373 | break; |
| 2374 | case 'p': |
| 2375 | preserve_dates = TRUE; |
| 2376 | break; |
| 2377 | case 'x': |
| 2378 | discard_locals = LOCALS_ALL; |
| 2379 | break; |
| 2380 | case 'X': |
| 2381 | discard_locals = LOCALS_START_L; |
| 2382 | break; |
| 2383 | case 'v': |
| 2384 | verbose = TRUE; |
| 2385 | break; |
| 2386 | case 'V': |
| 2387 | show_version = TRUE; |
| 2388 | break; |
| 2389 | case OPTION_FORMATS_INFO: |
| 2390 | formats_info = TRUE; |
| 2391 | break; |
| 2392 | case OPTION_ONLY_KEEP_DEBUG: |
| 2393 | strip_symbols = STRIP_NONDEBUG; |
| 2394 | break; |
| 2395 | case 0: |
| 2396 | /* We've been given a long option. */ |
| 2397 | break; |
| 2398 | case 'w': |
| 2399 | wildcard = TRUE; |
| 2400 | break; |
| 2401 | case 'H': |
| 2402 | case 'h': |
| 2403 | strip_usage (stdout, 0); |
| 2404 | default: |
| 2405 | strip_usage (stderr, 1); |
| 2406 | } |
| 2407 | } |
| 2408 | |
| 2409 | if (formats_info) |
| 2410 | { |
| 2411 | display_info (); |
| 2412 | return 0; |
| 2413 | } |
| 2414 | |
| 2415 | if (show_version) |
| 2416 | print_version ("strip"); |
| 2417 | |
| 2418 | /* Default is to strip all symbols. */ |
| 2419 | if (strip_symbols == STRIP_UNDEF |
| 2420 | && discard_locals == LOCALS_UNDEF |
| 2421 | && strip_specific_list == NULL) |
| 2422 | strip_symbols = STRIP_ALL; |
| 2423 | |
| 2424 | if (output_target == NULL) |
| 2425 | output_target = input_target; |
| 2426 | |
| 2427 | i = optind; |
| 2428 | if (i == argc |
| 2429 | || (output_file != NULL && (i + 1) < argc)) |
| 2430 | strip_usage (stderr, 1); |
| 2431 | |
| 2432 | for (; i < argc; i++) |
| 2433 | { |
| 2434 | int hold_status = status; |
| 2435 | struct stat statbuf; |
| 2436 | char *tmpname; |
| 2437 | |
| 2438 | if (get_file_size (argv[i]) < 1) |
| 2439 | continue; |
| 2440 | |
| 2441 | if (preserve_dates) |
| 2442 | /* No need to check the return value of stat(). |
| 2443 | It has already been checked in get_file_size(). */ |
| 2444 | stat (argv[i], &statbuf); |
| 2445 | |
| 2446 | if (output_file != NULL) |
| 2447 | tmpname = output_file; |
| 2448 | else |
| 2449 | tmpname = make_tempname (argv[i]); |
| 2450 | status = 0; |
| 2451 | |
| 2452 | copy_file (argv[i], tmpname, input_target, output_target); |
| 2453 | if (status == 0) |
| 2454 | { |
| 2455 | if (preserve_dates) |
| 2456 | set_times (tmpname, &statbuf); |
| 2457 | if (output_file == NULL) |
| 2458 | smart_rename (tmpname, argv[i], preserve_dates); |
| 2459 | status = hold_status; |
| 2460 | } |
| 2461 | else |
| 2462 | unlink_if_ordinary (tmpname); |
| 2463 | if (output_file == NULL) |
| 2464 | free (tmpname); |
| 2465 | } |
| 2466 | |
| 2467 | return 0; |
| 2468 | } |
| 2469 | |
| 2470 | static int |
| 2471 | copy_main (int argc, char *argv[]) |
| 2472 | { |
| 2473 | char * binary_architecture = NULL; |
| 2474 | char *input_filename = NULL; |
| 2475 | char *output_filename = NULL; |
| 2476 | char *input_target = NULL; |
| 2477 | char *output_target = NULL; |
| 2478 | bfd_boolean show_version = FALSE; |
| 2479 | bfd_boolean change_warn = TRUE; |
| 2480 | bfd_boolean formats_info = FALSE; |
| 2481 | int c; |
| 2482 | struct section_list *p; |
| 2483 | struct stat statbuf; |
| 2484 | |
| 2485 | while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:w", |
| 2486 | copy_options, (int *) 0)) != EOF) |
| 2487 | { |
| 2488 | switch (c) |
| 2489 | { |
| 2490 | case 'b': |
| 2491 | copy_byte = atoi (optarg); |
| 2492 | if (copy_byte < 0) |
| 2493 | fatal (_("byte number must be non-negative")); |
| 2494 | break; |
| 2495 | |
| 2496 | case 'B': |
| 2497 | binary_architecture = optarg; |
| 2498 | break; |
| 2499 | |
| 2500 | case 'i': |
| 2501 | interleave = atoi (optarg); |
| 2502 | if (interleave < 1) |
| 2503 | fatal (_("interleave must be positive")); |
| 2504 | break; |
| 2505 | |
| 2506 | case 'I': |
| 2507 | case 's': /* "source" - 'I' is preferred */ |
| 2508 | input_target = optarg; |
| 2509 | break; |
| 2510 | |
| 2511 | case 'O': |
| 2512 | case 'd': /* "destination" - 'O' is preferred */ |
| 2513 | output_target = optarg; |
| 2514 | break; |
| 2515 | |
| 2516 | case 'F': |
| 2517 | input_target = output_target = optarg; |
| 2518 | break; |
| 2519 | |
| 2520 | case 'j': |
| 2521 | p = find_section_list (optarg, TRUE); |
| 2522 | if (p->remove) |
| 2523 | fatal (_("%s both copied and removed"), optarg); |
| 2524 | p->copy = TRUE; |
| 2525 | sections_copied = TRUE; |
| 2526 | break; |
| 2527 | |
| 2528 | case 'R': |
| 2529 | p = find_section_list (optarg, TRUE); |
| 2530 | if (p->copy) |
| 2531 | fatal (_("%s both copied and removed"), optarg); |
| 2532 | p->remove = TRUE; |
| 2533 | sections_removed = TRUE; |
| 2534 | break; |
| 2535 | |
| 2536 | case 'S': |
| 2537 | strip_symbols = STRIP_ALL; |
| 2538 | break; |
| 2539 | |
| 2540 | case 'g': |
| 2541 | strip_symbols = STRIP_DEBUG; |
| 2542 | break; |
| 2543 | |
| 2544 | case OPTION_STRIP_UNNEEDED: |
| 2545 | strip_symbols = STRIP_UNNEEDED; |
| 2546 | break; |
| 2547 | |
| 2548 | case OPTION_ONLY_KEEP_DEBUG: |
| 2549 | strip_symbols = STRIP_NONDEBUG; |
| 2550 | break; |
| 2551 | |
| 2552 | case OPTION_ADD_GNU_DEBUGLINK: |
| 2553 | gnu_debuglink_filename = optarg; |
| 2554 | break; |
| 2555 | |
| 2556 | case 'K': |
| 2557 | add_specific_symbol (optarg, &keep_specific_list); |
| 2558 | break; |
| 2559 | |
| 2560 | case 'N': |
| 2561 | add_specific_symbol (optarg, &strip_specific_list); |
| 2562 | break; |
| 2563 | |
| 2564 | case OPTION_STRIP_UNNEEDED_SYMBOL: |
| 2565 | add_specific_symbol (optarg, &strip_unneeded_list); |
| 2566 | break; |
| 2567 | |
| 2568 | case 'L': |
| 2569 | add_specific_symbol (optarg, &localize_specific_list); |
| 2570 | break; |
| 2571 | |
| 2572 | case OPTION_GLOBALIZE_SYMBOL: |
| 2573 | add_specific_symbol (optarg, &globalize_specific_list); |
| 2574 | break; |
| 2575 | |
| 2576 | case 'G': |
| 2577 | add_specific_symbol (optarg, &keepglobal_specific_list); |
| 2578 | break; |
| 2579 | |
| 2580 | case 'W': |
| 2581 | add_specific_symbol (optarg, &weaken_specific_list); |
| 2582 | break; |
| 2583 | |
| 2584 | case 'p': |
| 2585 | preserve_dates = TRUE; |
| 2586 | break; |
| 2587 | |
| 2588 | case 'w': |
| 2589 | wildcard = TRUE; |
| 2590 | break; |
| 2591 | |
| 2592 | case 'x': |
| 2593 | discard_locals = LOCALS_ALL; |
| 2594 | break; |
| 2595 | |
| 2596 | case 'X': |
| 2597 | discard_locals = LOCALS_START_L; |
| 2598 | break; |
| 2599 | |
| 2600 | case 'v': |
| 2601 | verbose = TRUE; |
| 2602 | break; |
| 2603 | |
| 2604 | case 'V': |
| 2605 | show_version = TRUE; |
| 2606 | break; |
| 2607 | |
| 2608 | case OPTION_FORMATS_INFO: |
| 2609 | formats_info = TRUE; |
| 2610 | break; |
| 2611 | |
| 2612 | case OPTION_WEAKEN: |
| 2613 | weaken = TRUE; |
| 2614 | break; |
| 2615 | |
| 2616 | case OPTION_ADD_SECTION: |
| 2617 | { |
| 2618 | const char *s; |
| 2619 | off_t size; |
| 2620 | struct section_add *pa; |
| 2621 | int len; |
| 2622 | char *name; |
| 2623 | FILE *f; |
| 2624 | |
| 2625 | s = strchr (optarg, '='); |
| 2626 | |
| 2627 | if (s == NULL) |
| 2628 | fatal (_("bad format for %s"), "--add-section"); |
| 2629 | |
| 2630 | size = get_file_size (s + 1); |
| 2631 | if (size < 1) |
| 2632 | break; |
| 2633 | |
| 2634 | pa = xmalloc (sizeof (struct section_add)); |
| 2635 | |
| 2636 | len = s - optarg; |
| 2637 | name = xmalloc (len + 1); |
| 2638 | strncpy (name, optarg, len); |
| 2639 | name[len] = '\0'; |
| 2640 | pa->name = name; |
| 2641 | |
| 2642 | pa->filename = s + 1; |
| 2643 | pa->size = size; |
| 2644 | pa->contents = xmalloc (size); |
| 2645 | |
| 2646 | f = fopen (pa->filename, FOPEN_RB); |
| 2647 | |
| 2648 | if (f == NULL) |
| 2649 | fatal (_("cannot open: %s: %s"), |
| 2650 | pa->filename, strerror (errno)); |
| 2651 | |
| 2652 | if (fread (pa->contents, 1, pa->size, f) == 0 |
| 2653 | || ferror (f)) |
| 2654 | fatal (_("%s: fread failed"), pa->filename); |
| 2655 | |
| 2656 | fclose (f); |
| 2657 | |
| 2658 | pa->next = add_sections; |
| 2659 | add_sections = pa; |
| 2660 | } |
| 2661 | break; |
| 2662 | |
| 2663 | case OPTION_CHANGE_START: |
| 2664 | change_start = parse_vma (optarg, "--change-start"); |
| 2665 | break; |
| 2666 | |
| 2667 | case OPTION_CHANGE_SECTION_ADDRESS: |
| 2668 | case OPTION_CHANGE_SECTION_LMA: |
| 2669 | case OPTION_CHANGE_SECTION_VMA: |
| 2670 | { |
| 2671 | const char *s; |
| 2672 | int len; |
| 2673 | char *name; |
| 2674 | char *option = NULL; |
| 2675 | bfd_vma val; |
| 2676 | enum change_action what = CHANGE_IGNORE; |
| 2677 | |
| 2678 | switch (c) |
| 2679 | { |
| 2680 | case OPTION_CHANGE_SECTION_ADDRESS: |
| 2681 | option = "--change-section-address"; |
| 2682 | break; |
| 2683 | case OPTION_CHANGE_SECTION_LMA: |
| 2684 | option = "--change-section-lma"; |
| 2685 | break; |
| 2686 | case OPTION_CHANGE_SECTION_VMA: |
| 2687 | option = "--change-section-vma"; |
| 2688 | break; |
| 2689 | } |
| 2690 | |
| 2691 | s = strchr (optarg, '='); |
| 2692 | if (s == NULL) |
| 2693 | { |
| 2694 | s = strchr (optarg, '+'); |
| 2695 | if (s == NULL) |
| 2696 | { |
| 2697 | s = strchr (optarg, '-'); |
| 2698 | if (s == NULL) |
| 2699 | fatal (_("bad format for %s"), option); |
| 2700 | } |
| 2701 | } |
| 2702 | |
| 2703 | len = s - optarg; |
| 2704 | name = xmalloc (len + 1); |
| 2705 | strncpy (name, optarg, len); |
| 2706 | name[len] = '\0'; |
| 2707 | |
| 2708 | p = find_section_list (name, TRUE); |
| 2709 | |
| 2710 | val = parse_vma (s + 1, option); |
| 2711 | |
| 2712 | switch (*s) |
| 2713 | { |
| 2714 | case '=': what = CHANGE_SET; break; |
| 2715 | case '-': val = - val; /* Drop through. */ |
| 2716 | case '+': what = CHANGE_MODIFY; break; |
| 2717 | } |
| 2718 | |
| 2719 | switch (c) |
| 2720 | { |
| 2721 | case OPTION_CHANGE_SECTION_ADDRESS: |
| 2722 | p->change_vma = what; |
| 2723 | p->vma_val = val; |
| 2724 | /* Drop through. */ |
| 2725 | |
| 2726 | case OPTION_CHANGE_SECTION_LMA: |
| 2727 | p->change_lma = what; |
| 2728 | p->lma_val = val; |
| 2729 | break; |
| 2730 | |
| 2731 | case OPTION_CHANGE_SECTION_VMA: |
| 2732 | p->change_vma = what; |
| 2733 | p->vma_val = val; |
| 2734 | break; |
| 2735 | } |
| 2736 | } |
| 2737 | break; |
| 2738 | |
| 2739 | case OPTION_CHANGE_ADDRESSES: |
| 2740 | change_section_address = parse_vma (optarg, "--change-addresses"); |
| 2741 | change_start = change_section_address; |
| 2742 | break; |
| 2743 | |
| 2744 | case OPTION_CHANGE_WARNINGS: |
| 2745 | change_warn = TRUE; |
| 2746 | break; |
| 2747 | |
| 2748 | case OPTION_CHANGE_LEADING_CHAR: |
| 2749 | change_leading_char = TRUE; |
| 2750 | break; |
| 2751 | |
| 2752 | case OPTION_DEBUGGING: |
| 2753 | convert_debugging = TRUE; |
| 2754 | break; |
| 2755 | |
| 2756 | case OPTION_GAP_FILL: |
| 2757 | { |
| 2758 | bfd_vma gap_fill_vma; |
| 2759 | |
| 2760 | gap_fill_vma = parse_vma (optarg, "--gap-fill"); |
| 2761 | gap_fill = (bfd_byte) gap_fill_vma; |
| 2762 | if ((bfd_vma) gap_fill != gap_fill_vma) |
| 2763 | { |
| 2764 | char buff[20]; |
| 2765 | |
| 2766 | sprintf_vma (buff, gap_fill_vma); |
| 2767 | |
| 2768 | non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"), |
| 2769 | buff, gap_fill); |
| 2770 | } |
| 2771 | gap_fill_set = TRUE; |
| 2772 | } |
| 2773 | break; |
| 2774 | |
| 2775 | case OPTION_NO_CHANGE_WARNINGS: |
| 2776 | change_warn = FALSE; |
| 2777 | break; |
| 2778 | |
| 2779 | case OPTION_PAD_TO: |
| 2780 | pad_to = parse_vma (optarg, "--pad-to"); |
| 2781 | pad_to_set = TRUE; |
| 2782 | break; |
| 2783 | |
| 2784 | case OPTION_REMOVE_LEADING_CHAR: |
| 2785 | remove_leading_char = TRUE; |
| 2786 | break; |
| 2787 | |
| 2788 | case OPTION_REDEFINE_SYM: |
| 2789 | { |
| 2790 | /* Push this redefinition onto redefine_symbol_list. */ |
| 2791 | |
| 2792 | int len; |
| 2793 | const char *s; |
| 2794 | const char *nextarg; |
| 2795 | char *source, *target; |
| 2796 | |
| 2797 | s = strchr (optarg, '='); |
| 2798 | if (s == NULL) |
| 2799 | fatal (_("bad format for %s"), "--redefine-sym"); |
| 2800 | |
| 2801 | len = s - optarg; |
| 2802 | source = xmalloc (len + 1); |
| 2803 | strncpy (source, optarg, len); |
| 2804 | source[len] = '\0'; |
| 2805 | |
| 2806 | nextarg = s + 1; |
| 2807 | len = strlen (nextarg); |
| 2808 | target = xmalloc (len + 1); |
| 2809 | strcpy (target, nextarg); |
| 2810 | |
| 2811 | redefine_list_append ("--redefine-sym", source, target); |
| 2812 | |
| 2813 | free (source); |
| 2814 | free (target); |
| 2815 | } |
| 2816 | break; |
| 2817 | |
| 2818 | case OPTION_REDEFINE_SYMS: |
| 2819 | add_redefine_syms_file (optarg); |
| 2820 | break; |
| 2821 | |
| 2822 | case OPTION_SET_SECTION_FLAGS: |
| 2823 | { |
| 2824 | const char *s; |
| 2825 | int len; |
| 2826 | char *name; |
| 2827 | |
| 2828 | s = strchr (optarg, '='); |
| 2829 | if (s == NULL) |
| 2830 | fatal (_("bad format for %s"), "--set-section-flags"); |
| 2831 | |
| 2832 | len = s - optarg; |
| 2833 | name = xmalloc (len + 1); |
| 2834 | strncpy (name, optarg, len); |
| 2835 | name[len] = '\0'; |
| 2836 | |
| 2837 | p = find_section_list (name, TRUE); |
| 2838 | |
| 2839 | p->set_flags = TRUE; |
| 2840 | p->flags = parse_flags (s + 1); |
| 2841 | } |
| 2842 | break; |
| 2843 | |
| 2844 | case OPTION_RENAME_SECTION: |
| 2845 | { |
| 2846 | flagword flags; |
| 2847 | const char *eq, *fl; |
| 2848 | char *old_name; |
| 2849 | char *new_name; |
| 2850 | unsigned int len; |
| 2851 | |
| 2852 | eq = strchr (optarg, '='); |
| 2853 | if (eq == NULL) |
| 2854 | fatal (_("bad format for %s"), "--rename-section"); |
| 2855 | |
| 2856 | len = eq - optarg; |
| 2857 | if (len == 0) |
| 2858 | fatal (_("bad format for %s"), "--rename-section"); |
| 2859 | |
| 2860 | old_name = xmalloc (len + 1); |
| 2861 | strncpy (old_name, optarg, len); |
| 2862 | old_name[len] = 0; |
| 2863 | |
| 2864 | eq++; |
| 2865 | fl = strchr (eq, ','); |
| 2866 | if (fl) |
| 2867 | { |
| 2868 | flags = parse_flags (fl + 1); |
| 2869 | len = fl - eq; |
| 2870 | } |
| 2871 | else |
| 2872 | { |
| 2873 | flags = -1; |
| 2874 | len = strlen (eq); |
| 2875 | } |
| 2876 | |
| 2877 | if (len == 0) |
| 2878 | fatal (_("bad format for %s"), "--rename-section"); |
| 2879 | |
| 2880 | new_name = xmalloc (len + 1); |
| 2881 | strncpy (new_name, eq, len); |
| 2882 | new_name[len] = 0; |
| 2883 | |
| 2884 | add_section_rename (old_name, new_name, flags); |
| 2885 | } |
| 2886 | break; |
| 2887 | |
| 2888 | case OPTION_SET_START: |
| 2889 | set_start = parse_vma (optarg, "--set-start"); |
| 2890 | set_start_set = TRUE; |
| 2891 | break; |
| 2892 | |
| 2893 | case OPTION_SREC_LEN: |
| 2894 | Chunk = parse_vma (optarg, "--srec-len"); |
| 2895 | break; |
| 2896 | |
| 2897 | case OPTION_SREC_FORCES3: |
| 2898 | S3Forced = TRUE; |
| 2899 | break; |
| 2900 | |
| 2901 | case OPTION_STRIP_SYMBOLS: |
| 2902 | add_specific_symbols (optarg, &strip_specific_list); |
| 2903 | break; |
| 2904 | |
| 2905 | case OPTION_STRIP_UNNEEDED_SYMBOLS: |
| 2906 | add_specific_symbols (optarg, &strip_unneeded_list); |
| 2907 | break; |
| 2908 | |
| 2909 | case OPTION_KEEP_SYMBOLS: |
| 2910 | add_specific_symbols (optarg, &keep_specific_list); |
| 2911 | break; |
| 2912 | |
| 2913 | case OPTION_LOCALIZE_SYMBOLS: |
| 2914 | add_specific_symbols (optarg, &localize_specific_list); |
| 2915 | break; |
| 2916 | |
| 2917 | case OPTION_GLOBALIZE_SYMBOLS: |
| 2918 | add_specific_symbols (optarg, &globalize_specific_list); |
| 2919 | break; |
| 2920 | |
| 2921 | case OPTION_KEEPGLOBAL_SYMBOLS: |
| 2922 | add_specific_symbols (optarg, &keepglobal_specific_list); |
| 2923 | break; |
| 2924 | |
| 2925 | case OPTION_WEAKEN_SYMBOLS: |
| 2926 | add_specific_symbols (optarg, &weaken_specific_list); |
| 2927 | break; |
| 2928 | |
| 2929 | case OPTION_ALT_MACH_CODE: |
| 2930 | use_alt_mach_code = atoi (optarg); |
| 2931 | if (use_alt_mach_code <= 0) |
| 2932 | fatal (_("alternate machine code index must be positive")); |
| 2933 | break; |
| 2934 | |
| 2935 | case OPTION_PREFIX_SYMBOLS: |
| 2936 | prefix_symbols_string = optarg; |
| 2937 | break; |
| 2938 | |
| 2939 | case OPTION_PREFIX_SECTIONS: |
| 2940 | prefix_sections_string = optarg; |
| 2941 | break; |
| 2942 | |
| 2943 | case OPTION_PREFIX_ALLOC_SECTIONS: |
| 2944 | prefix_alloc_sections_string = optarg; |
| 2945 | break; |
| 2946 | |
| 2947 | case OPTION_READONLY_TEXT: |
| 2948 | bfd_flags_to_set |= WP_TEXT; |
| 2949 | bfd_flags_to_clear &= ~WP_TEXT; |
| 2950 | break; |
| 2951 | |
| 2952 | case OPTION_WRITABLE_TEXT: |
| 2953 | bfd_flags_to_clear |= WP_TEXT; |
| 2954 | bfd_flags_to_set &= ~WP_TEXT; |
| 2955 | break; |
| 2956 | |
| 2957 | case OPTION_PURE: |
| 2958 | bfd_flags_to_set |= D_PAGED; |
| 2959 | bfd_flags_to_clear &= ~D_PAGED; |
| 2960 | break; |
| 2961 | |
| 2962 | case OPTION_IMPURE: |
| 2963 | bfd_flags_to_clear |= D_PAGED; |
| 2964 | bfd_flags_to_set &= ~D_PAGED; |
| 2965 | break; |
| 2966 | |
| 2967 | case 0: |
| 2968 | /* We've been given a long option. */ |
| 2969 | break; |
| 2970 | |
| 2971 | case 'H': |
| 2972 | case 'h': |
| 2973 | copy_usage (stdout, 0); |
| 2974 | |
| 2975 | default: |
| 2976 | copy_usage (stderr, 1); |
| 2977 | } |
| 2978 | } |
| 2979 | |
| 2980 | if (formats_info) |
| 2981 | { |
| 2982 | display_info (); |
| 2983 | return 0; |
| 2984 | } |
| 2985 | |
| 2986 | if (show_version) |
| 2987 | print_version ("objcopy"); |
| 2988 | |
| 2989 | if (copy_byte >= interleave) |
| 2990 | fatal (_("byte number must be less than interleave")); |
| 2991 | |
| 2992 | if (optind == argc || optind + 2 < argc) |
| 2993 | copy_usage (stderr, 1); |
| 2994 | |
| 2995 | input_filename = argv[optind]; |
| 2996 | if (optind + 1 < argc) |
| 2997 | output_filename = argv[optind + 1]; |
| 2998 | |
| 2999 | /* Default is to strip no symbols. */ |
| 3000 | if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF) |
| 3001 | strip_symbols = STRIP_NONE; |
| 3002 | |
| 3003 | if (output_target == NULL) |
| 3004 | output_target = input_target; |
| 3005 | |
| 3006 | if (binary_architecture != NULL) |
| 3007 | { |
| 3008 | if (input_target && strcmp (input_target, "binary") == 0) |
| 3009 | { |
| 3010 | const bfd_arch_info_type * temp_arch_info; |
| 3011 | |
| 3012 | temp_arch_info = bfd_scan_arch (binary_architecture); |
| 3013 | |
| 3014 | if (temp_arch_info != NULL) |
| 3015 | { |
| 3016 | bfd_external_binary_architecture = temp_arch_info->arch; |
| 3017 | bfd_external_machine = temp_arch_info->mach; |
| 3018 | } |
| 3019 | else |
| 3020 | fatal (_("architecture %s unknown"), binary_architecture); |
| 3021 | } |
| 3022 | else |
| 3023 | { |
| 3024 | non_fatal (_("Warning: input target 'binary' required for binary architecture parameter.")); |
| 3025 | non_fatal (_(" Argument %s ignored"), binary_architecture); |
| 3026 | } |
| 3027 | } |
| 3028 | |
| 3029 | if (preserve_dates) |
| 3030 | if (stat (input_filename, & statbuf) < 0) |
| 3031 | fatal (_("warning: could not locate '%s'. System error message: %s"), |
| 3032 | input_filename, strerror (errno)); |
| 3033 | |
| 3034 | /* If there is no destination file, or the source and destination files |
| 3035 | are the same, then create a temp and rename the result into the input. */ |
| 3036 | if (output_filename == NULL || strcmp (input_filename, output_filename) == 0) |
| 3037 | { |
| 3038 | char *tmpname = make_tempname (input_filename); |
| 3039 | |
| 3040 | copy_file (input_filename, tmpname, input_target, output_target); |
| 3041 | if (status == 0) |
| 3042 | { |
| 3043 | if (preserve_dates) |
| 3044 | set_times (tmpname, &statbuf); |
| 3045 | smart_rename (tmpname, input_filename, preserve_dates); |
| 3046 | } |
| 3047 | else |
| 3048 | unlink (tmpname); |
| 3049 | } |
| 3050 | else |
| 3051 | { |
| 3052 | copy_file (input_filename, output_filename, input_target, output_target); |
| 3053 | |
| 3054 | if (status == 0 && preserve_dates) |
| 3055 | set_times (output_filename, &statbuf); |
| 3056 | } |
| 3057 | |
| 3058 | if (change_warn) |
| 3059 | { |
| 3060 | for (p = change_sections; p != NULL; p = p->next) |
| 3061 | { |
| 3062 | if (! p->used) |
| 3063 | { |
| 3064 | if (p->change_vma != CHANGE_IGNORE) |
| 3065 | { |
| 3066 | char buff [20]; |
| 3067 | |
| 3068 | sprintf_vma (buff, p->vma_val); |
| 3069 | |
| 3070 | /* xgettext:c-format */ |
| 3071 | non_fatal (_("%s %s%c0x%s never used"), |
| 3072 | "--change-section-vma", |
| 3073 | p->name, |
| 3074 | p->change_vma == CHANGE_SET ? '=' : '+', |
| 3075 | buff); |
| 3076 | } |
| 3077 | |
| 3078 | if (p->change_lma != CHANGE_IGNORE) |
| 3079 | { |
| 3080 | char buff [20]; |
| 3081 | |
| 3082 | sprintf_vma (buff, p->lma_val); |
| 3083 | |
| 3084 | /* xgettext:c-format */ |
| 3085 | non_fatal (_("%s %s%c0x%s never used"), |
| 3086 | "--change-section-lma", |
| 3087 | p->name, |
| 3088 | p->change_lma == CHANGE_SET ? '=' : '+', |
| 3089 | buff); |
| 3090 | } |
| 3091 | } |
| 3092 | } |
| 3093 | } |
| 3094 | |
| 3095 | return 0; |
| 3096 | } |
| 3097 | |
| 3098 | int |
| 3099 | main (int argc, char *argv[]) |
| 3100 | { |
| 3101 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
| 3102 | setlocale (LC_MESSAGES, ""); |
| 3103 | #endif |
| 3104 | #if defined (HAVE_SETLOCALE) |
| 3105 | setlocale (LC_CTYPE, ""); |
| 3106 | #endif |
| 3107 | bindtextdomain (PACKAGE, LOCALEDIR); |
| 3108 | textdomain (PACKAGE); |
| 3109 | |
| 3110 | program_name = argv[0]; |
| 3111 | xmalloc_set_program_name (program_name); |
| 3112 | |
| 3113 | START_PROGRESS (program_name, 0); |
| 3114 | |
| 3115 | strip_symbols = STRIP_UNDEF; |
| 3116 | discard_locals = LOCALS_UNDEF; |
| 3117 | |
| 3118 | bfd_init (); |
| 3119 | set_default_bfd_target (); |
| 3120 | |
| 3121 | if (is_strip < 0) |
| 3122 | { |
| 3123 | int i = strlen (program_name); |
| 3124 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 3125 | /* Drop the .exe suffix, if any. */ |
| 3126 | if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0) |
| 3127 | { |
| 3128 | i -= 4; |
| 3129 | program_name[i] = '\0'; |
| 3130 | } |
| 3131 | #endif |
| 3132 | is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0); |
| 3133 | } |
| 3134 | |
| 3135 | if (is_strip) |
| 3136 | strip_main (argc, argv); |
| 3137 | else |
| 3138 | copy_main (argc, argv); |
| 3139 | |
| 3140 | END_PROGRESS (program_name); |
| 3141 | |
| 3142 | return status; |
| 3143 | } |