| 1 | /* objcopy.c -- copy object file from input to output, optionally massaging it. |
| 2 | Copyright (C) 1991-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Binutils. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 19 | 02110-1301, USA. */ |
| 20 | \f |
| 21 | #include "sysdep.h" |
| 22 | #include "bfd.h" |
| 23 | #include "progress.h" |
| 24 | #include "getopt.h" |
| 25 | #include "libiberty.h" |
| 26 | #include "bucomm.h" |
| 27 | #include "budbg.h" |
| 28 | #include "filenames.h" |
| 29 | #include "fnmatch.h" |
| 30 | #include "elf-bfd.h" |
| 31 | #include "coff/internal.h" |
| 32 | #include "libcoff.h" |
| 33 | #include "safe-ctype.h" |
| 34 | |
| 35 | /* FIXME: See bfd/peXXigen.c for why we include an architecture specific |
| 36 | header in generic PE code. */ |
| 37 | #include "coff/i386.h" |
| 38 | #include "coff/pe.h" |
| 39 | |
| 40 | static bfd_vma pe_file_alignment = (bfd_vma) -1; |
| 41 | static bfd_vma pe_heap_commit = (bfd_vma) -1; |
| 42 | static bfd_vma pe_heap_reserve = (bfd_vma) -1; |
| 43 | static bfd_vma pe_image_base = (bfd_vma) -1; |
| 44 | static bfd_vma pe_section_alignment = (bfd_vma) -1; |
| 45 | static bfd_vma pe_stack_commit = (bfd_vma) -1; |
| 46 | static bfd_vma pe_stack_reserve = (bfd_vma) -1; |
| 47 | static short pe_subsystem = -1; |
| 48 | static short pe_major_subsystem_version = -1; |
| 49 | static short pe_minor_subsystem_version = -1; |
| 50 | |
| 51 | struct is_specified_symbol_predicate_data |
| 52 | { |
| 53 | const char * name; |
| 54 | bfd_boolean found; |
| 55 | }; |
| 56 | |
| 57 | /* A node includes symbol name mapping to support redefine_sym. */ |
| 58 | struct redefine_node |
| 59 | { |
| 60 | char *source; |
| 61 | char *target; |
| 62 | }; |
| 63 | |
| 64 | struct addsym_node |
| 65 | { |
| 66 | struct addsym_node *next; |
| 67 | char * symdef; |
| 68 | long symval; |
| 69 | flagword flags; |
| 70 | char * section; |
| 71 | const char * othersym; |
| 72 | }; |
| 73 | |
| 74 | typedef struct section_rename |
| 75 | { |
| 76 | const char * old_name; |
| 77 | const char * new_name; |
| 78 | flagword flags; |
| 79 | struct section_rename * next; |
| 80 | } |
| 81 | section_rename; |
| 82 | |
| 83 | /* List of sections to be renamed. */ |
| 84 | static section_rename *section_rename_list; |
| 85 | |
| 86 | static asymbol **isympp = NULL; /* Input symbols. */ |
| 87 | static asymbol **osympp = NULL; /* Output symbols that survive stripping. */ |
| 88 | |
| 89 | /* If `copy_byte' >= 0, copy 'copy_width' byte(s) of every `interleave' bytes. */ |
| 90 | static int copy_byte = -1; |
| 91 | static int interleave = 0; /* Initialised to 4 in copy_main(). */ |
| 92 | static int copy_width = 1; |
| 93 | |
| 94 | static bfd_boolean verbose; /* Print file and target names. */ |
| 95 | static bfd_boolean preserve_dates; /* Preserve input file timestamp. */ |
| 96 | static int deterministic = -1; /* Enable deterministic archives. */ |
| 97 | static int status = 0; /* Exit status. */ |
| 98 | |
| 99 | static bfd_boolean merge_notes = FALSE; /* Merge note sections. */ |
| 100 | |
| 101 | typedef struct merged_note_section |
| 102 | { |
| 103 | asection * sec; /* The section that is being merged. */ |
| 104 | bfd_byte * contents;/* New contents of the section. */ |
| 105 | bfd_size_type size; /* New size of the section. */ |
| 106 | struct merged_note_section * next; /* Link to next merged note section. */ |
| 107 | } merged_note_section; |
| 108 | |
| 109 | enum strip_action |
| 110 | { |
| 111 | STRIP_UNDEF, |
| 112 | STRIP_NONE, /* Don't strip. */ |
| 113 | STRIP_DEBUG, /* Strip all debugger symbols. */ |
| 114 | STRIP_UNNEEDED, /* Strip unnecessary symbols. */ |
| 115 | STRIP_NONDEBUG, /* Strip everything but debug info. */ |
| 116 | STRIP_DWO, /* Strip all DWO info. */ |
| 117 | STRIP_NONDWO, /* Strip everything but DWO info. */ |
| 118 | STRIP_ALL /* Strip all symbols. */ |
| 119 | }; |
| 120 | |
| 121 | /* Which symbols to remove. */ |
| 122 | static enum strip_action strip_symbols = STRIP_UNDEF; |
| 123 | |
| 124 | enum locals_action |
| 125 | { |
| 126 | LOCALS_UNDEF, |
| 127 | LOCALS_START_L, /* Discard locals starting with L. */ |
| 128 | LOCALS_ALL /* Discard all locals. */ |
| 129 | }; |
| 130 | |
| 131 | /* Which local symbols to remove. Overrides STRIP_ALL. */ |
| 132 | static enum locals_action discard_locals; |
| 133 | |
| 134 | /* Structure used to hold lists of sections and actions to take. */ |
| 135 | struct section_list |
| 136 | { |
| 137 | struct section_list * next; /* Next section to change. */ |
| 138 | const char * pattern; /* Section name pattern. */ |
| 139 | bfd_boolean used; /* Whether this entry was used. */ |
| 140 | |
| 141 | unsigned int context; /* What to do with matching sections. */ |
| 142 | /* Flag bits used in the context field. |
| 143 | COPY and REMOVE are mutually exlusive. SET and ALTER are mutually exclusive. */ |
| 144 | #define SECTION_CONTEXT_REMOVE (1 << 0) /* Remove this section. */ |
| 145 | #define SECTION_CONTEXT_COPY (1 << 1) /* Copy this section, delete all non-copied section. */ |
| 146 | #define SECTION_CONTEXT_KEEP (1 << 2) /* Keep this section. */ |
| 147 | #define SECTION_CONTEXT_SET_VMA (1 << 3) /* Set the sections' VMA address. */ |
| 148 | #define SECTION_CONTEXT_ALTER_VMA (1 << 4) /* Increment or decrement the section's VMA address. */ |
| 149 | #define SECTION_CONTEXT_SET_LMA (1 << 5) /* Set the sections' LMA address. */ |
| 150 | #define SECTION_CONTEXT_ALTER_LMA (1 << 6) /* Increment or decrement the section's LMA address. */ |
| 151 | #define SECTION_CONTEXT_SET_FLAGS (1 << 7) /* Set the section's flags. */ |
| 152 | #define SECTION_CONTEXT_REMOVE_RELOCS (1 << 8) /* Remove relocations for this section. */ |
| 153 | #define SECTION_CONTEXT_SET_ALIGNMENT (1 << 9) /* Set alignment for section. */ |
| 154 | |
| 155 | bfd_vma vma_val; /* Amount to change by or set to. */ |
| 156 | bfd_vma lma_val; /* Amount to change by or set to. */ |
| 157 | flagword flags; /* What to set the section flags to. */ |
| 158 | unsigned int alignment; /* Alignment of output section. */ |
| 159 | }; |
| 160 | |
| 161 | static struct section_list *change_sections; |
| 162 | |
| 163 | /* TRUE if some sections are to be removed. */ |
| 164 | static bfd_boolean sections_removed; |
| 165 | |
| 166 | /* TRUE if only some sections are to be copied. */ |
| 167 | static bfd_boolean sections_copied; |
| 168 | |
| 169 | /* Changes to the start address. */ |
| 170 | static bfd_vma change_start = 0; |
| 171 | static bfd_boolean set_start_set = FALSE; |
| 172 | static bfd_vma set_start; |
| 173 | |
| 174 | /* Changes to section addresses. */ |
| 175 | static bfd_vma change_section_address = 0; |
| 176 | |
| 177 | /* Filling gaps between sections. */ |
| 178 | static bfd_boolean gap_fill_set = FALSE; |
| 179 | static bfd_byte gap_fill = 0; |
| 180 | |
| 181 | /* Pad to a given address. */ |
| 182 | static bfd_boolean pad_to_set = FALSE; |
| 183 | static bfd_vma pad_to; |
| 184 | |
| 185 | /* Use alternative machine code? */ |
| 186 | static unsigned long use_alt_mach_code = 0; |
| 187 | |
| 188 | /* Output BFD flags user wants to set or clear */ |
| 189 | static flagword bfd_flags_to_set; |
| 190 | static flagword bfd_flags_to_clear; |
| 191 | |
| 192 | /* List of sections to add. */ |
| 193 | struct section_add |
| 194 | { |
| 195 | /* Next section to add. */ |
| 196 | struct section_add *next; |
| 197 | /* Name of section to add. */ |
| 198 | const char *name; |
| 199 | /* Name of file holding section contents. */ |
| 200 | const char *filename; |
| 201 | /* Size of file. */ |
| 202 | size_t size; |
| 203 | /* Contents of file. */ |
| 204 | bfd_byte *contents; |
| 205 | /* BFD section, after it has been added. */ |
| 206 | asection *section; |
| 207 | }; |
| 208 | |
| 209 | /* List of sections to add to the output BFD. */ |
| 210 | static struct section_add *add_sections; |
| 211 | |
| 212 | /* List of sections to update in the output BFD. */ |
| 213 | static struct section_add *update_sections; |
| 214 | |
| 215 | /* List of sections to dump from the output BFD. */ |
| 216 | static struct section_add *dump_sections; |
| 217 | |
| 218 | /* If non-NULL the argument to --add-gnu-debuglink. |
| 219 | This should be the filename to store in the .gnu_debuglink section. */ |
| 220 | static const char * gnu_debuglink_filename = NULL; |
| 221 | |
| 222 | /* Whether to convert debugging information. */ |
| 223 | static bfd_boolean convert_debugging = FALSE; |
| 224 | |
| 225 | /* Whether to compress/decompress DWARF debug sections. */ |
| 226 | static enum |
| 227 | { |
| 228 | nothing = 0, |
| 229 | compress = 1 << 0, |
| 230 | compress_zlib = compress | 1 << 1, |
| 231 | compress_gnu_zlib = compress | 1 << 2, |
| 232 | compress_gabi_zlib = compress | 1 << 3, |
| 233 | decompress = 1 << 4 |
| 234 | } do_debug_sections = nothing; |
| 235 | |
| 236 | /* Whether to generate ELF common symbols with the STT_COMMON type. */ |
| 237 | static enum bfd_link_elf_stt_common do_elf_stt_common = unchanged; |
| 238 | |
| 239 | /* Whether to change the leading character in symbol names. */ |
| 240 | static bfd_boolean change_leading_char = FALSE; |
| 241 | |
| 242 | /* Whether to remove the leading character from global symbol names. */ |
| 243 | static bfd_boolean remove_leading_char = FALSE; |
| 244 | |
| 245 | /* Whether to permit wildcard in symbol comparison. */ |
| 246 | static bfd_boolean wildcard = FALSE; |
| 247 | |
| 248 | /* True if --localize-hidden is in effect. */ |
| 249 | static bfd_boolean localize_hidden = FALSE; |
| 250 | |
| 251 | /* List of symbols to strip, keep, localize, keep-global, weaken, |
| 252 | or redefine. */ |
| 253 | static htab_t strip_specific_htab = NULL; |
| 254 | static htab_t strip_unneeded_htab = NULL; |
| 255 | static htab_t keep_specific_htab = NULL; |
| 256 | static htab_t localize_specific_htab = NULL; |
| 257 | static htab_t globalize_specific_htab = NULL; |
| 258 | static htab_t keepglobal_specific_htab = NULL; |
| 259 | static htab_t weaken_specific_htab = NULL; |
| 260 | static htab_t redefine_specific_htab = NULL; |
| 261 | static htab_t redefine_specific_reverse_htab = NULL; |
| 262 | static struct addsym_node *add_sym_list = NULL, **add_sym_tail = &add_sym_list; |
| 263 | static int add_symbols = 0; |
| 264 | |
| 265 | static char *strip_specific_buffer = NULL; |
| 266 | static char *strip_unneeded_buffer = NULL; |
| 267 | static char *keep_specific_buffer = NULL; |
| 268 | static char *localize_specific_buffer = NULL; |
| 269 | static char *globalize_specific_buffer = NULL; |
| 270 | static char *keepglobal_specific_buffer = NULL; |
| 271 | static char *weaken_specific_buffer = NULL; |
| 272 | |
| 273 | /* If this is TRUE, we weaken global symbols (set BSF_WEAK). */ |
| 274 | static bfd_boolean weaken = FALSE; |
| 275 | |
| 276 | /* If this is TRUE, we retain BSF_FILE symbols. */ |
| 277 | static bfd_boolean keep_file_symbols = FALSE; |
| 278 | |
| 279 | /* Prefix symbols/sections. */ |
| 280 | static char *prefix_symbols_string = 0; |
| 281 | static char *prefix_sections_string = 0; |
| 282 | static char *prefix_alloc_sections_string = 0; |
| 283 | |
| 284 | /* True if --extract-symbol was passed on the command line. */ |
| 285 | static bfd_boolean extract_symbol = FALSE; |
| 286 | |
| 287 | /* If `reverse_bytes' is nonzero, then reverse the order of every chunk |
| 288 | of <reverse_bytes> bytes within each output section. */ |
| 289 | static int reverse_bytes = 0; |
| 290 | |
| 291 | /* For Coff objects, we may want to allow or disallow long section names, |
| 292 | or preserve them where found in the inputs. Debug info relies on them. */ |
| 293 | enum long_section_name_handling |
| 294 | { |
| 295 | DISABLE, |
| 296 | ENABLE, |
| 297 | KEEP |
| 298 | }; |
| 299 | |
| 300 | /* The default long section handling mode is to preserve them. |
| 301 | This is also the only behaviour for 'strip'. */ |
| 302 | static enum long_section_name_handling long_section_names = KEEP; |
| 303 | |
| 304 | /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ |
| 305 | enum command_line_switch |
| 306 | { |
| 307 | OPTION_ADD_SECTION=150, |
| 308 | OPTION_ADD_GNU_DEBUGLINK, |
| 309 | OPTION_ADD_SYMBOL, |
| 310 | OPTION_ALT_MACH_CODE, |
| 311 | OPTION_CHANGE_ADDRESSES, |
| 312 | OPTION_CHANGE_LEADING_CHAR, |
| 313 | OPTION_CHANGE_SECTION_ADDRESS, |
| 314 | OPTION_CHANGE_SECTION_LMA, |
| 315 | OPTION_CHANGE_SECTION_VMA, |
| 316 | OPTION_CHANGE_START, |
| 317 | OPTION_CHANGE_WARNINGS, |
| 318 | OPTION_COMPRESS_DEBUG_SECTIONS, |
| 319 | OPTION_DEBUGGING, |
| 320 | OPTION_DECOMPRESS_DEBUG_SECTIONS, |
| 321 | OPTION_DUMP_SECTION, |
| 322 | OPTION_ELF_STT_COMMON, |
| 323 | OPTION_EXTRACT_DWO, |
| 324 | OPTION_EXTRACT_SYMBOL, |
| 325 | OPTION_FILE_ALIGNMENT, |
| 326 | OPTION_FORMATS_INFO, |
| 327 | OPTION_GAP_FILL, |
| 328 | OPTION_GLOBALIZE_SYMBOL, |
| 329 | OPTION_GLOBALIZE_SYMBOLS, |
| 330 | OPTION_HEAP, |
| 331 | OPTION_IMAGE_BASE, |
| 332 | OPTION_IMPURE, |
| 333 | OPTION_INTERLEAVE_WIDTH, |
| 334 | OPTION_KEEPGLOBAL_SYMBOLS, |
| 335 | OPTION_KEEP_FILE_SYMBOLS, |
| 336 | OPTION_KEEP_SECTION, |
| 337 | OPTION_KEEP_SYMBOLS, |
| 338 | OPTION_LOCALIZE_HIDDEN, |
| 339 | OPTION_LOCALIZE_SYMBOLS, |
| 340 | OPTION_LONG_SECTION_NAMES, |
| 341 | OPTION_MERGE_NOTES, |
| 342 | OPTION_NO_MERGE_NOTES, |
| 343 | OPTION_NO_CHANGE_WARNINGS, |
| 344 | OPTION_ONLY_KEEP_DEBUG, |
| 345 | OPTION_PAD_TO, |
| 346 | OPTION_PREFIX_ALLOC_SECTIONS, |
| 347 | OPTION_PREFIX_SECTIONS, |
| 348 | OPTION_PREFIX_SYMBOLS, |
| 349 | OPTION_PURE, |
| 350 | OPTION_READONLY_TEXT, |
| 351 | OPTION_REDEFINE_SYM, |
| 352 | OPTION_REDEFINE_SYMS, |
| 353 | OPTION_REMOVE_LEADING_CHAR, |
| 354 | OPTION_REMOVE_RELOCS, |
| 355 | OPTION_RENAME_SECTION, |
| 356 | OPTION_REVERSE_BYTES, |
| 357 | OPTION_PE_SECTION_ALIGNMENT, |
| 358 | OPTION_SET_SECTION_FLAGS, |
| 359 | OPTION_SET_SECTION_ALIGNMENT, |
| 360 | OPTION_SET_START, |
| 361 | OPTION_SREC_FORCES3, |
| 362 | OPTION_SREC_LEN, |
| 363 | OPTION_STACK, |
| 364 | OPTION_STRIP_DWO, |
| 365 | OPTION_STRIP_SYMBOLS, |
| 366 | OPTION_STRIP_UNNEEDED, |
| 367 | OPTION_STRIP_UNNEEDED_SYMBOL, |
| 368 | OPTION_STRIP_UNNEEDED_SYMBOLS, |
| 369 | OPTION_SUBSYSTEM, |
| 370 | OPTION_UPDATE_SECTION, |
| 371 | OPTION_VERILOG_DATA_WIDTH, |
| 372 | OPTION_WEAKEN, |
| 373 | OPTION_WEAKEN_SYMBOLS, |
| 374 | OPTION_WRITABLE_TEXT |
| 375 | }; |
| 376 | |
| 377 | /* Options to handle if running as "strip". */ |
| 378 | |
| 379 | static struct option strip_options[] = |
| 380 | { |
| 381 | {"disable-deterministic-archives", no_argument, 0, 'U'}, |
| 382 | {"discard-all", no_argument, 0, 'x'}, |
| 383 | {"discard-locals", no_argument, 0, 'X'}, |
| 384 | {"enable-deterministic-archives", no_argument, 0, 'D'}, |
| 385 | {"format", required_argument, 0, 'F'}, /* Obsolete */ |
| 386 | {"help", no_argument, 0, 'h'}, |
| 387 | {"info", no_argument, 0, OPTION_FORMATS_INFO}, |
| 388 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| 389 | {"input-target", required_argument, 0, 'I'}, |
| 390 | {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS}, |
| 391 | {"keep-section", required_argument, 0, OPTION_KEEP_SECTION}, |
| 392 | {"keep-symbol", required_argument, 0, 'K'}, |
| 393 | {"merge-notes", no_argument, 0, 'M'}, |
| 394 | {"no-merge-notes", no_argument, 0, OPTION_NO_MERGE_NOTES}, |
| 395 | {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG}, |
| 396 | {"output-file", required_argument, 0, 'o'}, |
| 397 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ |
| 398 | {"output-target", required_argument, 0, 'O'}, |
| 399 | {"preserve-dates", no_argument, 0, 'p'}, |
| 400 | {"remove-section", required_argument, 0, 'R'}, |
| 401 | {"remove-relocations", required_argument, 0, OPTION_REMOVE_RELOCS}, |
| 402 | {"strip-all", no_argument, 0, 's'}, |
| 403 | {"strip-debug", no_argument, 0, 'S'}, |
| 404 | {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO}, |
| 405 | {"strip-symbol", required_argument, 0, 'N'}, |
| 406 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, |
| 407 | {"target", required_argument, 0, 'F'}, |
| 408 | {"verbose", no_argument, 0, 'v'}, |
| 409 | {"version", no_argument, 0, 'V'}, |
| 410 | {"wildcard", no_argument, 0, 'w'}, |
| 411 | {0, no_argument, 0, 0} |
| 412 | }; |
| 413 | |
| 414 | /* Options to handle if running as "objcopy". */ |
| 415 | |
| 416 | static struct option copy_options[] = |
| 417 | { |
| 418 | {"add-gnu-debuglink", required_argument, 0, OPTION_ADD_GNU_DEBUGLINK}, |
| 419 | {"add-section", required_argument, 0, OPTION_ADD_SECTION}, |
| 420 | {"add-symbol", required_argument, 0, OPTION_ADD_SYMBOL}, |
| 421 | {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, |
| 422 | {"adjust-start", required_argument, 0, OPTION_CHANGE_START}, |
| 423 | {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES}, |
| 424 | {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, |
| 425 | {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE}, |
| 426 | {"binary-architecture", required_argument, 0, 'B'}, |
| 427 | {"byte", required_argument, 0, 'b'}, |
| 428 | {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES}, |
| 429 | {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR}, |
| 430 | {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS}, |
| 431 | {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA}, |
| 432 | {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA}, |
| 433 | {"change-start", required_argument, 0, OPTION_CHANGE_START}, |
| 434 | {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS}, |
| 435 | {"compress-debug-sections", optional_argument, 0, OPTION_COMPRESS_DEBUG_SECTIONS}, |
| 436 | {"debugging", no_argument, 0, OPTION_DEBUGGING}, |
| 437 | {"decompress-debug-sections", no_argument, 0, OPTION_DECOMPRESS_DEBUG_SECTIONS}, |
| 438 | {"disable-deterministic-archives", no_argument, 0, 'U'}, |
| 439 | {"discard-all", no_argument, 0, 'x'}, |
| 440 | {"discard-locals", no_argument, 0, 'X'}, |
| 441 | {"dump-section", required_argument, 0, OPTION_DUMP_SECTION}, |
| 442 | {"elf-stt-common", required_argument, 0, OPTION_ELF_STT_COMMON}, |
| 443 | {"enable-deterministic-archives", no_argument, 0, 'D'}, |
| 444 | {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO}, |
| 445 | {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL}, |
| 446 | {"file-alignment", required_argument, 0, OPTION_FILE_ALIGNMENT}, |
| 447 | {"format", required_argument, 0, 'F'}, /* Obsolete */ |
| 448 | {"gap-fill", required_argument, 0, OPTION_GAP_FILL}, |
| 449 | {"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL}, |
| 450 | {"globalize-symbols", required_argument, 0, OPTION_GLOBALIZE_SYMBOLS}, |
| 451 | {"heap", required_argument, 0, OPTION_HEAP}, |
| 452 | {"help", no_argument, 0, 'h'}, |
| 453 | {"image-base", required_argument, 0 , OPTION_IMAGE_BASE}, |
| 454 | {"impure", no_argument, 0, OPTION_IMPURE}, |
| 455 | {"info", no_argument, 0, OPTION_FORMATS_INFO}, |
| 456 | {"input-format", required_argument, 0, 'I'}, /* Obsolete */ |
| 457 | {"input-target", required_argument, 0, 'I'}, |
| 458 | {"interleave", optional_argument, 0, 'i'}, |
| 459 | {"interleave-width", required_argument, 0, OPTION_INTERLEAVE_WIDTH}, |
| 460 | {"keep-file-symbols", no_argument, 0, OPTION_KEEP_FILE_SYMBOLS}, |
| 461 | {"keep-global-symbol", required_argument, 0, 'G'}, |
| 462 | {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS}, |
| 463 | {"keep-section", required_argument, 0, OPTION_KEEP_SECTION}, |
| 464 | {"keep-symbol", required_argument, 0, 'K'}, |
| 465 | {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS}, |
| 466 | {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN}, |
| 467 | {"localize-symbol", required_argument, 0, 'L'}, |
| 468 | {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS}, |
| 469 | {"long-section-names", required_argument, 0, OPTION_LONG_SECTION_NAMES}, |
| 470 | {"merge-notes", no_argument, 0, 'M'}, |
| 471 | {"no-merge-notes", no_argument, 0, OPTION_NO_MERGE_NOTES}, |
| 472 | {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, |
| 473 | {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS}, |
| 474 | {"only-keep-debug", no_argument, 0, OPTION_ONLY_KEEP_DEBUG}, |
| 475 | {"only-section", required_argument, 0, 'j'}, |
| 476 | {"output-format", required_argument, 0, 'O'}, /* Obsolete */ |
| 477 | {"output-target", required_argument, 0, 'O'}, |
| 478 | {"pad-to", required_argument, 0, OPTION_PAD_TO}, |
| 479 | {"prefix-alloc-sections", required_argument, 0, OPTION_PREFIX_ALLOC_SECTIONS}, |
| 480 | {"prefix-sections", required_argument, 0, OPTION_PREFIX_SECTIONS}, |
| 481 | {"prefix-symbols", required_argument, 0, OPTION_PREFIX_SYMBOLS}, |
| 482 | {"preserve-dates", no_argument, 0, 'p'}, |
| 483 | {"pure", no_argument, 0, OPTION_PURE}, |
| 484 | {"readonly-text", no_argument, 0, OPTION_READONLY_TEXT}, |
| 485 | {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM}, |
| 486 | {"redefine-syms", required_argument, 0, OPTION_REDEFINE_SYMS}, |
| 487 | {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR}, |
| 488 | {"remove-section", required_argument, 0, 'R'}, |
| 489 | {"remove-relocations", required_argument, 0, OPTION_REMOVE_RELOCS}, |
| 490 | {"rename-section", required_argument, 0, OPTION_RENAME_SECTION}, |
| 491 | {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES}, |
| 492 | {"section-alignment", required_argument, 0, OPTION_PE_SECTION_ALIGNMENT}, |
| 493 | {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS}, |
| 494 | {"set-section-alignment", required_argument, 0, OPTION_SET_SECTION_ALIGNMENT}, |
| 495 | {"set-start", required_argument, 0, OPTION_SET_START}, |
| 496 | {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3}, |
| 497 | {"srec-len", required_argument, 0, OPTION_SREC_LEN}, |
| 498 | {"stack", required_argument, 0, OPTION_STACK}, |
| 499 | {"strip-all", no_argument, 0, 'S'}, |
| 500 | {"strip-debug", no_argument, 0, 'g'}, |
| 501 | {"strip-dwo", no_argument, 0, OPTION_STRIP_DWO}, |
| 502 | {"strip-symbol", required_argument, 0, 'N'}, |
| 503 | {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS}, |
| 504 | {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED}, |
| 505 | {"strip-unneeded-symbol", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOL}, |
| 506 | {"strip-unneeded-symbols", required_argument, 0, OPTION_STRIP_UNNEEDED_SYMBOLS}, |
| 507 | {"subsystem", required_argument, 0, OPTION_SUBSYSTEM}, |
| 508 | {"target", required_argument, 0, 'F'}, |
| 509 | {"update-section", required_argument, 0, OPTION_UPDATE_SECTION}, |
| 510 | {"verbose", no_argument, 0, 'v'}, |
| 511 | {"verilog-data-width", required_argument, 0, OPTION_VERILOG_DATA_WIDTH}, |
| 512 | {"version", no_argument, 0, 'V'}, |
| 513 | {"weaken", no_argument, 0, OPTION_WEAKEN}, |
| 514 | {"weaken-symbol", required_argument, 0, 'W'}, |
| 515 | {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS}, |
| 516 | {"wildcard", no_argument, 0, 'w'}, |
| 517 | {"writable-text", no_argument, 0, OPTION_WRITABLE_TEXT}, |
| 518 | {0, no_argument, 0, 0} |
| 519 | }; |
| 520 | |
| 521 | /* IMPORTS */ |
| 522 | extern char *program_name; |
| 523 | |
| 524 | /* This flag distinguishes between strip and objcopy: |
| 525 | 1 means this is 'strip'; 0 means this is 'objcopy'. |
| 526 | -1 means if we should use argv[0] to decide. */ |
| 527 | extern int is_strip; |
| 528 | |
| 529 | /* The maximum length of an S record. This variable is defined in srec.c |
| 530 | and can be modified by the --srec-len parameter. */ |
| 531 | extern unsigned int _bfd_srec_len; |
| 532 | |
| 533 | /* Restrict the generation of Srecords to type S3 only. |
| 534 | This variable is defined in bfd/srec.c and can be toggled |
| 535 | on by the --srec-forceS3 command line switch. */ |
| 536 | extern bfd_boolean _bfd_srec_forceS3; |
| 537 | |
| 538 | /* Width of data in bytes for verilog output. |
| 539 | This variable is declared in bfd/verilog.c and can be modified by |
| 540 | the --verilog-data-width parameter. */ |
| 541 | extern unsigned int VerilogDataWidth; |
| 542 | |
| 543 | /* Forward declarations. */ |
| 544 | static void setup_section (bfd *, asection *, void *); |
| 545 | static void setup_bfd_headers (bfd *, bfd *); |
| 546 | static void copy_relocations_in_section (bfd *, asection *, void *); |
| 547 | static void copy_section (bfd *, asection *, void *); |
| 548 | static void get_sections (bfd *, asection *, void *); |
| 549 | static int compare_section_lma (const void *, const void *); |
| 550 | static void mark_symbols_used_in_relocations (bfd *, asection *, void *); |
| 551 | static bfd_boolean write_debugging_info (bfd *, void *, long *, asymbol ***); |
| 552 | static const char *lookup_sym_redefinition (const char *); |
| 553 | static const char *find_section_rename (const char *, flagword *); |
| 554 | \f |
| 555 | ATTRIBUTE_NORETURN static void |
| 556 | copy_usage (FILE *stream, int exit_status) |
| 557 | { |
| 558 | fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name); |
| 559 | fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n")); |
| 560 | fprintf (stream, _(" The options are:\n")); |
| 561 | fprintf (stream, _("\ |
| 562 | -I --input-target <bfdname> Assume input file is in format <bfdname>\n\ |
| 563 | -O --output-target <bfdname> Create an output file in format <bfdname>\n\ |
| 564 | -B --binary-architecture <arch> Set output arch, when input is arch-less\n\ |
| 565 | -F --target <bfdname> Set both input and output format to <bfdname>\n\ |
| 566 | --debugging Convert debugging information, if possible\n\ |
| 567 | -p --preserve-dates Copy modified/access timestamps to the output\n")); |
| 568 | if (DEFAULT_AR_DETERMINISTIC) |
| 569 | fprintf (stream, _("\ |
| 570 | -D --enable-deterministic-archives\n\ |
| 571 | Produce deterministic output when stripping archives (default)\n\ |
| 572 | -U --disable-deterministic-archives\n\ |
| 573 | Disable -D behavior\n")); |
| 574 | else |
| 575 | fprintf (stream, _("\ |
| 576 | -D --enable-deterministic-archives\n\ |
| 577 | Produce deterministic output when stripping archives\n\ |
| 578 | -U --disable-deterministic-archives\n\ |
| 579 | Disable -D behavior (default)\n")); |
| 580 | fprintf (stream, _("\ |
| 581 | -j --only-section <name> Only copy section <name> into the output\n\ |
| 582 | --add-gnu-debuglink=<file> Add section .gnu_debuglink linking to <file>\n\ |
| 583 | -R --remove-section <name> Remove section <name> from the output\n\ |
| 584 | --remove-relocations <name> Remove relocations from section <name>\n\ |
| 585 | -S --strip-all Remove all symbol and relocation information\n\ |
| 586 | -g --strip-debug Remove all debugging symbols & sections\n\ |
| 587 | --strip-dwo Remove all DWO sections\n\ |
| 588 | --strip-unneeded Remove all symbols not needed by relocations\n\ |
| 589 | -N --strip-symbol <name> Do not copy symbol <name>\n\ |
| 590 | --strip-unneeded-symbol <name>\n\ |
| 591 | Do not copy symbol <name> unless needed by\n\ |
| 592 | relocations\n\ |
| 593 | --only-keep-debug Strip everything but the debug information\n\ |
| 594 | --extract-dwo Copy only DWO sections\n\ |
| 595 | --extract-symbol Remove section contents but keep symbols\n\ |
| 596 | --keep-section <name> Do not strip section <name>\n\ |
| 597 | -K --keep-symbol <name> Do not strip symbol <name>\n\ |
| 598 | --keep-file-symbols Do not strip file symbol(s)\n\ |
| 599 | --localize-hidden Turn all ELF hidden symbols into locals\n\ |
| 600 | -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\ |
| 601 | --globalize-symbol <name> Force symbol <name> to be marked as a global\n\ |
| 602 | -G --keep-global-symbol <name> Localize all symbols except <name>\n\ |
| 603 | -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\ |
| 604 | --weaken Force all global symbols to be marked as weak\n\ |
| 605 | -w --wildcard Permit wildcard in symbol comparison\n\ |
| 606 | -x --discard-all Remove all non-global symbols\n\ |
| 607 | -X --discard-locals Remove any compiler-generated symbols\n\ |
| 608 | -i --interleave[=<number>] Only copy N out of every <number> bytes\n\ |
| 609 | --interleave-width <number> Set N for --interleave\n\ |
| 610 | -b --byte <num> Select byte <num> in every interleaved block\n\ |
| 611 | --gap-fill <val> Fill gaps between sections with <val>\n\ |
| 612 | --pad-to <addr> Pad the last section up to address <addr>\n\ |
| 613 | --set-start <addr> Set the start address to <addr>\n\ |
| 614 | {--change-start|--adjust-start} <incr>\n\ |
| 615 | Add <incr> to the start address\n\ |
| 616 | {--change-addresses|--adjust-vma} <incr>\n\ |
| 617 | Add <incr> to LMA, VMA and start addresses\n\ |
| 618 | {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\ |
| 619 | Change LMA and VMA of section <name> by <val>\n\ |
| 620 | --change-section-lma <name>{=|+|-}<val>\n\ |
| 621 | Change the LMA of section <name> by <val>\n\ |
| 622 | --change-section-vma <name>{=|+|-}<val>\n\ |
| 623 | Change the VMA of section <name> by <val>\n\ |
| 624 | {--[no-]change-warnings|--[no-]adjust-warnings}\n\ |
| 625 | Warn if a named section does not exist\n\ |
| 626 | --set-section-flags <name>=<flags>\n\ |
| 627 | Set section <name>'s properties to <flags>\n\ |
| 628 | --set-section-alignment <name>=<align>\n\ |
| 629 | Set section <name>'s alignment to <align> bytes\n\ |
| 630 | --add-section <name>=<file> Add section <name> found in <file> to output\n\ |
| 631 | --update-section <name>=<file>\n\ |
| 632 | Update contents of section <name> with\n\ |
| 633 | contents found in <file>\n\ |
| 634 | --dump-section <name>=<file> Dump the contents of section <name> into <file>\n\ |
| 635 | --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\ |
| 636 | --long-section-names {enable|disable|keep}\n\ |
| 637 | Handle long section names in Coff objects.\n\ |
| 638 | --change-leading-char Force output format's leading character style\n\ |
| 639 | --remove-leading-char Remove leading character from global symbols\n\ |
| 640 | --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\ |
| 641 | --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\ |
| 642 | --redefine-syms <file> --redefine-sym for all symbol pairs \n\ |
| 643 | listed in <file>\n\ |
| 644 | --srec-len <number> Restrict the length of generated Srecords\n\ |
| 645 | --srec-forceS3 Restrict the type of generated Srecords to S3\n\ |
| 646 | --strip-symbols <file> -N for all symbols listed in <file>\n\ |
| 647 | --strip-unneeded-symbols <file>\n\ |
| 648 | --strip-unneeded-symbol for all symbols listed\n\ |
| 649 | in <file>\n\ |
| 650 | --keep-symbols <file> -K for all symbols listed in <file>\n\ |
| 651 | --localize-symbols <file> -L for all symbols listed in <file>\n\ |
| 652 | --globalize-symbols <file> --globalize-symbol for all in <file>\n\ |
| 653 | --keep-global-symbols <file> -G for all symbols listed in <file>\n\ |
| 654 | --weaken-symbols <file> -W for all symbols listed in <file>\n\ |
| 655 | --add-symbol <name>=[<section>:]<value>[,<flags>] Add a symbol\n\ |
| 656 | --alt-machine-code <index> Use the target's <index>'th alternative machine\n\ |
| 657 | --writable-text Mark the output text as writable\n\ |
| 658 | --readonly-text Make the output text write protected\n\ |
| 659 | --pure Mark the output file as demand paged\n\ |
| 660 | --impure Mark the output file as impure\n\ |
| 661 | --prefix-symbols <prefix> Add <prefix> to start of every symbol name\n\ |
| 662 | --prefix-sections <prefix> Add <prefix> to start of every section name\n\ |
| 663 | --prefix-alloc-sections <prefix>\n\ |
| 664 | Add <prefix> to start of every allocatable\n\ |
| 665 | section name\n\ |
| 666 | --file-alignment <num> Set PE file alignment to <num>\n\ |
| 667 | --heap <reserve>[,<commit>] Set PE reserve/commit heap to <reserve>/\n\ |
| 668 | <commit>\n\ |
| 669 | --image-base <address> Set PE image base to <address>\n\ |
| 670 | --section-alignment <num> Set PE section alignment to <num>\n\ |
| 671 | --stack <reserve>[,<commit>] Set PE reserve/commit stack to <reserve>/\n\ |
| 672 | <commit>\n\ |
| 673 | --subsystem <name>[:<version>]\n\ |
| 674 | Set PE subsystem to <name> [& <version>]\n\ |
| 675 | --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ |
| 676 | Compress DWARF debug sections using zlib\n\ |
| 677 | --decompress-debug-sections Decompress DWARF debug sections using zlib\n\ |
| 678 | --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\ |
| 679 | type\n\ |
| 680 | --verilog-data-width <number> Specifies data width, in bytes, for verilog output\n\ |
| 681 | -M --merge-notes Remove redundant entries in note sections\n\ |
| 682 | --no-merge-notes Do not attempt to remove redundant notes (default)\n\ |
| 683 | -v --verbose List all object files modified\n\ |
| 684 | @<file> Read options from <file>\n\ |
| 685 | -V --version Display this program's version number\n\ |
| 686 | -h --help Display this output\n\ |
| 687 | --info List object formats & architectures supported\n\ |
| 688 | ")); |
| 689 | list_supported_targets (program_name, stream); |
| 690 | if (REPORT_BUGS_TO[0] && exit_status == 0) |
| 691 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
| 692 | exit (exit_status); |
| 693 | } |
| 694 | |
| 695 | ATTRIBUTE_NORETURN static void |
| 696 | strip_usage (FILE *stream, int exit_status) |
| 697 | { |
| 698 | fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name); |
| 699 | fprintf (stream, _(" Removes symbols and sections from files\n")); |
| 700 | fprintf (stream, _(" The options are:\n")); |
| 701 | fprintf (stream, _("\ |
| 702 | -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\ |
| 703 | -O --output-target=<bfdname> Create an output file in format <bfdname>\n\ |
| 704 | -F --target=<bfdname> Set both input and output format to <bfdname>\n\ |
| 705 | -p --preserve-dates Copy modified/access timestamps to the output\n\ |
| 706 | ")); |
| 707 | if (DEFAULT_AR_DETERMINISTIC) |
| 708 | fprintf (stream, _("\ |
| 709 | -D --enable-deterministic-archives\n\ |
| 710 | Produce deterministic output when stripping archives (default)\n\ |
| 711 | -U --disable-deterministic-archives\n\ |
| 712 | Disable -D behavior\n")); |
| 713 | else |
| 714 | fprintf (stream, _("\ |
| 715 | -D --enable-deterministic-archives\n\ |
| 716 | Produce deterministic output when stripping archives\n\ |
| 717 | -U --disable-deterministic-archives\n\ |
| 718 | Disable -D behavior (default)\n")); |
| 719 | fprintf (stream, _("\ |
| 720 | -R --remove-section=<name> Also remove section <name> from the output\n\ |
| 721 | --remove-relocations <name> Remove relocations from section <name>\n\ |
| 722 | -s --strip-all Remove all symbol and relocation information\n\ |
| 723 | -g -S -d --strip-debug Remove all debugging symbols & sections\n\ |
| 724 | --strip-dwo Remove all DWO sections\n\ |
| 725 | --strip-unneeded Remove all symbols not needed by relocations\n\ |
| 726 | --only-keep-debug Strip everything but the debug information\n\ |
| 727 | -M --merge-notes Remove redundant entries in note sections (default)\n\ |
| 728 | --no-merge-notes Do not attempt to remove redundant notes\n\ |
| 729 | -N --strip-symbol=<name> Do not copy symbol <name>\n\ |
| 730 | --keep-section=<name> Do not strip section <name>\n\ |
| 731 | -K --keep-symbol=<name> Do not strip symbol <name>\n\ |
| 732 | --keep-file-symbols Do not strip file symbol(s)\n\ |
| 733 | -w --wildcard Permit wildcard in symbol comparison\n\ |
| 734 | -x --discard-all Remove all non-global symbols\n\ |
| 735 | -X --discard-locals Remove any compiler-generated symbols\n\ |
| 736 | -v --verbose List all object files modified\n\ |
| 737 | -V --version Display this program's version number\n\ |
| 738 | -h --help Display this output\n\ |
| 739 | --info List object formats & architectures supported\n\ |
| 740 | -o <file> Place stripped output into <file>\n\ |
| 741 | ")); |
| 742 | |
| 743 | list_supported_targets (program_name, stream); |
| 744 | if (REPORT_BUGS_TO[0] && exit_status == 0) |
| 745 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO); |
| 746 | exit (exit_status); |
| 747 | } |
| 748 | |
| 749 | /* Parse section flags into a flagword, with a fatal error if the |
| 750 | string can't be parsed. */ |
| 751 | |
| 752 | static flagword |
| 753 | parse_flags (const char *s) |
| 754 | { |
| 755 | flagword ret; |
| 756 | const char *snext; |
| 757 | int len; |
| 758 | |
| 759 | ret = SEC_NO_FLAGS; |
| 760 | |
| 761 | do |
| 762 | { |
| 763 | snext = strchr (s, ','); |
| 764 | if (snext == NULL) |
| 765 | len = strlen (s); |
| 766 | else |
| 767 | { |
| 768 | len = snext - s; |
| 769 | ++snext; |
| 770 | } |
| 771 | |
| 772 | if (0) ; |
| 773 | #define PARSE_FLAG(fname,fval) \ |
| 774 | else if (strncasecmp (fname, s, len) == 0) ret |= fval |
| 775 | PARSE_FLAG ("alloc", SEC_ALLOC); |
| 776 | PARSE_FLAG ("load", SEC_LOAD); |
| 777 | PARSE_FLAG ("noload", SEC_NEVER_LOAD); |
| 778 | PARSE_FLAG ("readonly", SEC_READONLY); |
| 779 | PARSE_FLAG ("debug", SEC_DEBUGGING); |
| 780 | PARSE_FLAG ("code", SEC_CODE); |
| 781 | PARSE_FLAG ("data", SEC_DATA); |
| 782 | PARSE_FLAG ("rom", SEC_ROM); |
| 783 | PARSE_FLAG ("share", SEC_COFF_SHARED); |
| 784 | PARSE_FLAG ("contents", SEC_HAS_CONTENTS); |
| 785 | PARSE_FLAG ("merge", SEC_MERGE); |
| 786 | PARSE_FLAG ("strings", SEC_STRINGS); |
| 787 | #undef PARSE_FLAG |
| 788 | else |
| 789 | { |
| 790 | char *copy; |
| 791 | |
| 792 | copy = (char *) xmalloc (len + 1); |
| 793 | strncpy (copy, s, len); |
| 794 | copy[len] = '\0'; |
| 795 | non_fatal (_("unrecognized section flag `%s'"), copy); |
| 796 | fatal (_("supported flags: %s"), |
| 797 | "alloc, load, noload, readonly, debug, code, data, rom, share, contents, merge, strings"); |
| 798 | } |
| 799 | |
| 800 | s = snext; |
| 801 | } |
| 802 | while (s != NULL); |
| 803 | |
| 804 | return ret; |
| 805 | } |
| 806 | |
| 807 | /* Parse symbol flags into a flagword, with a fatal error if the |
| 808 | string can't be parsed. */ |
| 809 | |
| 810 | static flagword |
| 811 | parse_symflags (const char *s, const char **other) |
| 812 | { |
| 813 | flagword ret; |
| 814 | const char *snext; |
| 815 | size_t len; |
| 816 | |
| 817 | ret = BSF_NO_FLAGS; |
| 818 | |
| 819 | do |
| 820 | { |
| 821 | snext = strchr (s, ','); |
| 822 | if (snext == NULL) |
| 823 | len = strlen (s); |
| 824 | else |
| 825 | { |
| 826 | len = snext - s; |
| 827 | ++snext; |
| 828 | } |
| 829 | |
| 830 | #define PARSE_FLAG(fname, fval) \ |
| 831 | else if (len == sizeof fname - 1 \ |
| 832 | && strncasecmp (fname, s, len) == 0) \ |
| 833 | ret |= fval |
| 834 | |
| 835 | #define PARSE_OTHER(fname, fval) \ |
| 836 | else if (len >= sizeof fname \ |
| 837 | && strncasecmp (fname, s, sizeof fname - 1) == 0) \ |
| 838 | fval = xstrndup (s + sizeof fname - 1, len - sizeof fname + 1) |
| 839 | |
| 840 | if (0) ; |
| 841 | PARSE_FLAG ("local", BSF_LOCAL); |
| 842 | PARSE_FLAG ("global", BSF_GLOBAL); |
| 843 | PARSE_FLAG ("export", BSF_EXPORT); |
| 844 | PARSE_FLAG ("debug", BSF_DEBUGGING); |
| 845 | PARSE_FLAG ("function", BSF_FUNCTION); |
| 846 | PARSE_FLAG ("weak", BSF_WEAK); |
| 847 | PARSE_FLAG ("section", BSF_SECTION_SYM); |
| 848 | PARSE_FLAG ("constructor", BSF_CONSTRUCTOR); |
| 849 | PARSE_FLAG ("warning", BSF_WARNING); |
| 850 | PARSE_FLAG ("indirect", BSF_INDIRECT); |
| 851 | PARSE_FLAG ("file", BSF_FILE); |
| 852 | PARSE_FLAG ("object", BSF_OBJECT); |
| 853 | PARSE_FLAG ("synthetic", BSF_SYNTHETIC); |
| 854 | PARSE_FLAG ("indirect-function", BSF_GNU_INDIRECT_FUNCTION | BSF_FUNCTION); |
| 855 | PARSE_FLAG ("unique-object", BSF_GNU_UNIQUE | BSF_OBJECT); |
| 856 | PARSE_OTHER ("before=", *other); |
| 857 | |
| 858 | #undef PARSE_FLAG |
| 859 | #undef PARSE_OTHER |
| 860 | else |
| 861 | { |
| 862 | char *copy; |
| 863 | |
| 864 | copy = (char *) xmalloc (len + 1); |
| 865 | strncpy (copy, s, len); |
| 866 | copy[len] = '\0'; |
| 867 | non_fatal (_("unrecognized symbol flag `%s'"), copy); |
| 868 | fatal (_("supported flags: %s"), |
| 869 | "local, global, export, debug, function, weak, section, " |
| 870 | "constructor, warning, indirect, file, object, synthetic, " |
| 871 | "indirect-function, unique-object, before=<othersym>"); |
| 872 | } |
| 873 | |
| 874 | s = snext; |
| 875 | } |
| 876 | while (s != NULL); |
| 877 | |
| 878 | return ret; |
| 879 | } |
| 880 | |
| 881 | /* Find and optionally add an entry in the change_sections list. |
| 882 | |
| 883 | We need to be careful in how we match section names because of the support |
| 884 | for wildcard characters. For example suppose that the user has invoked |
| 885 | objcopy like this: |
| 886 | |
| 887 | --set-section-flags .debug_*=debug |
| 888 | --set-section-flags .debug_str=readonly,debug |
| 889 | --change-section-address .debug_*ranges=0x1000 |
| 890 | |
| 891 | With the idea that all debug sections will receive the DEBUG flag, the |
| 892 | .debug_str section will also receive the READONLY flag and the |
| 893 | .debug_ranges and .debug_aranges sections will have their address set to |
| 894 | 0x1000. (This may not make much sense, but it is just an example). |
| 895 | |
| 896 | When adding the section name patterns to the section list we need to make |
| 897 | sure that previous entries do not match with the new entry, unless the |
| 898 | match is exact. (In which case we assume that the user is overriding |
| 899 | the previous entry with the new context). |
| 900 | |
| 901 | When matching real section names to the section list we make use of the |
| 902 | wildcard characters, but we must do so in context. Eg if we are setting |
| 903 | section addresses then we match for .debug_ranges but not for .debug_info. |
| 904 | |
| 905 | Finally, if ADD is false and we do find a match, we mark the section list |
| 906 | entry as used. */ |
| 907 | |
| 908 | static struct section_list * |
| 909 | find_section_list (const char *name, bfd_boolean add, unsigned int context) |
| 910 | { |
| 911 | struct section_list *p, *match = NULL; |
| 912 | |
| 913 | /* assert ((context & ((1 << 7) - 1)) != 0); */ |
| 914 | |
| 915 | for (p = change_sections; p != NULL; p = p->next) |
| 916 | { |
| 917 | if (add) |
| 918 | { |
| 919 | if (strcmp (p->pattern, name) == 0) |
| 920 | { |
| 921 | /* Check for context conflicts. */ |
| 922 | if (((p->context & SECTION_CONTEXT_REMOVE) |
| 923 | && (context & SECTION_CONTEXT_COPY)) |
| 924 | || ((context & SECTION_CONTEXT_REMOVE) |
| 925 | && (p->context & SECTION_CONTEXT_COPY))) |
| 926 | fatal (_("error: %s both copied and removed"), name); |
| 927 | |
| 928 | if (((p->context & SECTION_CONTEXT_SET_VMA) |
| 929 | && (context & SECTION_CONTEXT_ALTER_VMA)) |
| 930 | || ((context & SECTION_CONTEXT_SET_VMA) |
| 931 | && (context & SECTION_CONTEXT_ALTER_VMA))) |
| 932 | fatal (_("error: %s both sets and alters VMA"), name); |
| 933 | |
| 934 | if (((p->context & SECTION_CONTEXT_SET_LMA) |
| 935 | && (context & SECTION_CONTEXT_ALTER_LMA)) |
| 936 | || ((context & SECTION_CONTEXT_SET_LMA) |
| 937 | && (context & SECTION_CONTEXT_ALTER_LMA))) |
| 938 | fatal (_("error: %s both sets and alters LMA"), name); |
| 939 | |
| 940 | /* Extend the context. */ |
| 941 | p->context |= context; |
| 942 | return p; |
| 943 | } |
| 944 | } |
| 945 | /* If we are not adding a new name/pattern then |
| 946 | only check for a match if the context applies. */ |
| 947 | else if (p->context & context) |
| 948 | { |
| 949 | /* We could check for the presence of wildchar characters |
| 950 | first and choose between calling strcmp and fnmatch, |
| 951 | but is that really worth it ? */ |
| 952 | if (p->pattern [0] == '!') |
| 953 | { |
| 954 | if (fnmatch (p->pattern + 1, name, 0) == 0) |
| 955 | { |
| 956 | p->used = TRUE; |
| 957 | return NULL; |
| 958 | } |
| 959 | } |
| 960 | else |
| 961 | { |
| 962 | if (fnmatch (p->pattern, name, 0) == 0) |
| 963 | { |
| 964 | if (match == NULL) |
| 965 | match = p; |
| 966 | } |
| 967 | } |
| 968 | } |
| 969 | } |
| 970 | |
| 971 | if (! add) |
| 972 | { |
| 973 | if (match != NULL) |
| 974 | match->used = TRUE; |
| 975 | return match; |
| 976 | } |
| 977 | |
| 978 | p = (struct section_list *) xmalloc (sizeof (struct section_list)); |
| 979 | p->pattern = name; |
| 980 | p->used = FALSE; |
| 981 | p->context = context; |
| 982 | p->vma_val = 0; |
| 983 | p->lma_val = 0; |
| 984 | p->flags = 0; |
| 985 | p->alignment = 0; |
| 986 | p->next = change_sections; |
| 987 | change_sections = p; |
| 988 | |
| 989 | return p; |
| 990 | } |
| 991 | |
| 992 | /* S1 is the entry node already in the table, S2 is the key node. */ |
| 993 | |
| 994 | static int |
| 995 | eq_string_redefnode (const void *s1, const void *s2) |
| 996 | { |
| 997 | struct redefine_node *node1 = (struct redefine_node *) s1; |
| 998 | struct redefine_node *node2 = (struct redefine_node *) s2; |
| 999 | return !strcmp ((const char *) node1->source, (const char *) node2->source); |
| 1000 | } |
| 1001 | |
| 1002 | /* P is redefine node. Hash value is generated from its "source" filed. */ |
| 1003 | |
| 1004 | static hashval_t |
| 1005 | htab_hash_redefnode (const void *p) |
| 1006 | { |
| 1007 | struct redefine_node *redefnode = (struct redefine_node *) p; |
| 1008 | return htab_hash_string (redefnode->source); |
| 1009 | } |
| 1010 | |
| 1011 | /* Create hashtab used for redefine node. */ |
| 1012 | |
| 1013 | static htab_t |
| 1014 | create_symbol2redef_htab (void) |
| 1015 | { |
| 1016 | return htab_create_alloc (16, htab_hash_redefnode, eq_string_redefnode, NULL, |
| 1017 | xcalloc, free); |
| 1018 | } |
| 1019 | |
| 1020 | /* There is htab_hash_string but no htab_eq_string. Makes sense. */ |
| 1021 | |
| 1022 | static int |
| 1023 | eq_string (const void *s1, const void *s2) |
| 1024 | { |
| 1025 | return strcmp ((const char *) s1, (const char *) s2) == 0; |
| 1026 | } |
| 1027 | |
| 1028 | static htab_t |
| 1029 | create_symbol_htab (void) |
| 1030 | { |
| 1031 | return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free); |
| 1032 | } |
| 1033 | |
| 1034 | static void |
| 1035 | create_symbol_htabs (void) |
| 1036 | { |
| 1037 | strip_specific_htab = create_symbol_htab (); |
| 1038 | strip_unneeded_htab = create_symbol_htab (); |
| 1039 | keep_specific_htab = create_symbol_htab (); |
| 1040 | localize_specific_htab = create_symbol_htab (); |
| 1041 | globalize_specific_htab = create_symbol_htab (); |
| 1042 | keepglobal_specific_htab = create_symbol_htab (); |
| 1043 | weaken_specific_htab = create_symbol_htab (); |
| 1044 | redefine_specific_htab = create_symbol2redef_htab (); |
| 1045 | /* As there is no bidirectional hash table in libiberty, need a reverse table |
| 1046 | to check duplicated target string. */ |
| 1047 | redefine_specific_reverse_htab = create_symbol_htab (); |
| 1048 | } |
| 1049 | |
| 1050 | /* Add a symbol to strip_specific_list. */ |
| 1051 | |
| 1052 | static void |
| 1053 | add_specific_symbol (const char *name, htab_t htab) |
| 1054 | { |
| 1055 | *htab_find_slot (htab, name, INSERT) = (char *) name; |
| 1056 | } |
| 1057 | |
| 1058 | /* Like add_specific_symbol, but the element type is void *. */ |
| 1059 | |
| 1060 | static void |
| 1061 | add_specific_symbol_node (const void *node, htab_t htab) |
| 1062 | { |
| 1063 | *htab_find_slot (htab, node, INSERT) = (void *) node; |
| 1064 | } |
| 1065 | |
| 1066 | /* Add symbols listed in `filename' to strip_specific_list. */ |
| 1067 | |
| 1068 | #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t') |
| 1069 | #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0') |
| 1070 | |
| 1071 | static void |
| 1072 | add_specific_symbols (const char *filename, htab_t htab, char **buffer_p) |
| 1073 | { |
| 1074 | off_t size; |
| 1075 | FILE * f; |
| 1076 | char * line; |
| 1077 | char * buffer; |
| 1078 | unsigned int line_count; |
| 1079 | |
| 1080 | size = get_file_size (filename); |
| 1081 | if (size == 0) |
| 1082 | { |
| 1083 | status = 1; |
| 1084 | return; |
| 1085 | } |
| 1086 | |
| 1087 | buffer = (char *) xmalloc (size + 2); |
| 1088 | f = fopen (filename, FOPEN_RT); |
| 1089 | if (f == NULL) |
| 1090 | fatal (_("cannot open '%s': %s"), filename, strerror (errno)); |
| 1091 | |
| 1092 | if (fread (buffer, 1, size, f) == 0 || ferror (f)) |
| 1093 | fatal (_("%s: fread failed"), filename); |
| 1094 | |
| 1095 | fclose (f); |
| 1096 | buffer [size] = '\n'; |
| 1097 | buffer [size + 1] = '\0'; |
| 1098 | |
| 1099 | line_count = 1; |
| 1100 | |
| 1101 | for (line = buffer; * line != '\0'; line ++) |
| 1102 | { |
| 1103 | char * eol; |
| 1104 | char * name; |
| 1105 | char * name_end; |
| 1106 | int finished = FALSE; |
| 1107 | |
| 1108 | for (eol = line;; eol ++) |
| 1109 | { |
| 1110 | switch (* eol) |
| 1111 | { |
| 1112 | case '\n': |
| 1113 | * eol = '\0'; |
| 1114 | /* Cope with \n\r. */ |
| 1115 | if (eol[1] == '\r') |
| 1116 | ++ eol; |
| 1117 | finished = TRUE; |
| 1118 | break; |
| 1119 | |
| 1120 | case '\r': |
| 1121 | * eol = '\0'; |
| 1122 | /* Cope with \r\n. */ |
| 1123 | if (eol[1] == '\n') |
| 1124 | ++ eol; |
| 1125 | finished = TRUE; |
| 1126 | break; |
| 1127 | |
| 1128 | case 0: |
| 1129 | finished = TRUE; |
| 1130 | break; |
| 1131 | |
| 1132 | case '#': |
| 1133 | /* Line comment, Terminate the line here, in case a |
| 1134 | name is present and then allow the rest of the |
| 1135 | loop to find the real end of the line. */ |
| 1136 | * eol = '\0'; |
| 1137 | break; |
| 1138 | |
| 1139 | default: |
| 1140 | break; |
| 1141 | } |
| 1142 | |
| 1143 | if (finished) |
| 1144 | break; |
| 1145 | } |
| 1146 | |
| 1147 | /* A name may now exist somewhere between 'line' and 'eol'. |
| 1148 | Strip off leading whitespace and trailing whitespace, |
| 1149 | then add it to the list. */ |
| 1150 | for (name = line; IS_WHITESPACE (* name); name ++) |
| 1151 | ; |
| 1152 | for (name_end = name; |
| 1153 | (! IS_WHITESPACE (* name_end)) |
| 1154 | && (! IS_LINE_TERMINATOR (* name_end)); |
| 1155 | name_end ++) |
| 1156 | ; |
| 1157 | |
| 1158 | if (! IS_LINE_TERMINATOR (* name_end)) |
| 1159 | { |
| 1160 | char * extra; |
| 1161 | |
| 1162 | for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++) |
| 1163 | ; |
| 1164 | |
| 1165 | if (! IS_LINE_TERMINATOR (* extra)) |
| 1166 | non_fatal (_("%s:%d: Ignoring rubbish found on this line"), |
| 1167 | filename, line_count); |
| 1168 | } |
| 1169 | |
| 1170 | * name_end = '\0'; |
| 1171 | |
| 1172 | if (name_end > name) |
| 1173 | add_specific_symbol (name, htab); |
| 1174 | |
| 1175 | /* Advance line pointer to end of line. The 'eol ++' in the for |
| 1176 | loop above will then advance us to the start of the next line. */ |
| 1177 | line = eol; |
| 1178 | line_count ++; |
| 1179 | } |
| 1180 | |
| 1181 | /* Do not free the buffer. Parts of it will have been referenced |
| 1182 | in the calls to add_specific_symbol. */ |
| 1183 | *buffer_p = buffer; |
| 1184 | } |
| 1185 | |
| 1186 | /* See whether a symbol should be stripped or kept |
| 1187 | based on strip_specific_list and keep_symbols. */ |
| 1188 | |
| 1189 | static int |
| 1190 | is_specified_symbol_predicate (void **slot, void *data) |
| 1191 | { |
| 1192 | struct is_specified_symbol_predicate_data *d = |
| 1193 | (struct is_specified_symbol_predicate_data *) data; |
| 1194 | const char *slot_name = (char *) *slot; |
| 1195 | |
| 1196 | if (*slot_name != '!') |
| 1197 | { |
| 1198 | if (! fnmatch (slot_name, d->name, 0)) |
| 1199 | { |
| 1200 | d->found = TRUE; |
| 1201 | /* Continue traversal, there might be a non-match rule. */ |
| 1202 | return 1; |
| 1203 | } |
| 1204 | } |
| 1205 | else |
| 1206 | { |
| 1207 | if (! fnmatch (slot_name + 1, d->name, 0)) |
| 1208 | { |
| 1209 | d->found = FALSE; |
| 1210 | /* Stop traversal. */ |
| 1211 | return 0; |
| 1212 | } |
| 1213 | } |
| 1214 | |
| 1215 | /* Continue traversal. */ |
| 1216 | return 1; |
| 1217 | } |
| 1218 | |
| 1219 | static bfd_boolean |
| 1220 | is_specified_symbol (const char *name, htab_t htab) |
| 1221 | { |
| 1222 | if (wildcard) |
| 1223 | { |
| 1224 | struct is_specified_symbol_predicate_data data; |
| 1225 | |
| 1226 | data.name = name; |
| 1227 | data.found = FALSE; |
| 1228 | |
| 1229 | htab_traverse (htab, is_specified_symbol_predicate, &data); |
| 1230 | |
| 1231 | return data.found; |
| 1232 | } |
| 1233 | |
| 1234 | return htab_find (htab, name) != NULL; |
| 1235 | } |
| 1236 | |
| 1237 | /* Return a pointer to the symbol used as a signature for GROUP. */ |
| 1238 | |
| 1239 | static asymbol * |
| 1240 | group_signature (asection *group) |
| 1241 | { |
| 1242 | bfd *abfd = group->owner; |
| 1243 | Elf_Internal_Shdr *ghdr; |
| 1244 | |
| 1245 | /* PR 20089: An earlier error may have prevented us from loading the symbol table. */ |
| 1246 | if (isympp == NULL) |
| 1247 | return NULL; |
| 1248 | |
| 1249 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) |
| 1250 | return NULL; |
| 1251 | |
| 1252 | ghdr = &elf_section_data (group)->this_hdr; |
| 1253 | if (ghdr->sh_link == elf_onesymtab (abfd)) |
| 1254 | { |
| 1255 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
| 1256 | Elf_Internal_Shdr *symhdr = &elf_symtab_hdr (abfd); |
| 1257 | |
| 1258 | if (ghdr->sh_info > 0 |
| 1259 | && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym) |
| 1260 | return isympp[ghdr->sh_info - 1]; |
| 1261 | } |
| 1262 | return NULL; |
| 1263 | } |
| 1264 | |
| 1265 | /* Return TRUE if the section is a DWO section. */ |
| 1266 | |
| 1267 | static bfd_boolean |
| 1268 | is_dwo_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) |
| 1269 | { |
| 1270 | const char *name = bfd_section_name (sec); |
| 1271 | int len = strlen (name); |
| 1272 | |
| 1273 | return strncmp (name + len - 4, ".dwo", 4) == 0; |
| 1274 | } |
| 1275 | |
| 1276 | /* Return TRUE if section SEC is in the update list. */ |
| 1277 | |
| 1278 | static bfd_boolean |
| 1279 | is_update_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) |
| 1280 | { |
| 1281 | if (update_sections != NULL) |
| 1282 | { |
| 1283 | struct section_add *pupdate; |
| 1284 | |
| 1285 | for (pupdate = update_sections; |
| 1286 | pupdate != NULL; |
| 1287 | pupdate = pupdate->next) |
| 1288 | { |
| 1289 | if (strcmp (sec->name, pupdate->name) == 0) |
| 1290 | return TRUE; |
| 1291 | } |
| 1292 | } |
| 1293 | |
| 1294 | return FALSE; |
| 1295 | } |
| 1296 | |
| 1297 | static bfd_boolean |
| 1298 | is_mergeable_note_section (bfd * abfd, asection * sec) |
| 1299 | { |
| 1300 | if (merge_notes |
| 1301 | && bfd_get_flavour (abfd) == bfd_target_elf_flavour |
| 1302 | && elf_section_data (sec)->this_hdr.sh_type == SHT_NOTE |
| 1303 | /* FIXME: We currently only support merging GNU_BUILD_NOTEs. |
| 1304 | We should add support for more note types. */ |
| 1305 | && ((elf_section_data (sec)->this_hdr.sh_flags & SHF_GNU_BUILD_NOTE) != 0 |
| 1306 | /* Old versions of GAS (prior to 2.27) could not set the section |
| 1307 | flags to OS-specific values, so we also accept sections that |
| 1308 | start with the expected name. */ |
| 1309 | || (CONST_STRNEQ (sec->name, GNU_BUILD_ATTRS_SECTION_NAME)))) |
| 1310 | return TRUE; |
| 1311 | |
| 1312 | return FALSE; |
| 1313 | } |
| 1314 | |
| 1315 | /* See if a non-group section is being removed. */ |
| 1316 | |
| 1317 | static bfd_boolean |
| 1318 | is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) |
| 1319 | { |
| 1320 | if (find_section_list (bfd_section_name (sec), FALSE, SECTION_CONTEXT_KEEP) |
| 1321 | != NULL) |
| 1322 | return FALSE; |
| 1323 | |
| 1324 | if (sections_removed || sections_copied) |
| 1325 | { |
| 1326 | struct section_list *p; |
| 1327 | struct section_list *q; |
| 1328 | |
| 1329 | p = find_section_list (bfd_section_name (sec), FALSE, |
| 1330 | SECTION_CONTEXT_REMOVE); |
| 1331 | q = find_section_list (bfd_section_name (sec), FALSE, |
| 1332 | SECTION_CONTEXT_COPY); |
| 1333 | |
| 1334 | if (p && q) |
| 1335 | fatal (_("error: section %s matches both remove and copy options"), |
| 1336 | bfd_section_name (sec)); |
| 1337 | if (p && is_update_section (abfd, sec)) |
| 1338 | fatal (_("error: section %s matches both update and remove options"), |
| 1339 | bfd_section_name (sec)); |
| 1340 | |
| 1341 | if (p != NULL) |
| 1342 | return TRUE; |
| 1343 | if (sections_copied && q == NULL) |
| 1344 | return TRUE; |
| 1345 | } |
| 1346 | |
| 1347 | if ((bfd_section_flags (sec) & SEC_DEBUGGING) != 0) |
| 1348 | { |
| 1349 | if (strip_symbols == STRIP_DEBUG |
| 1350 | || strip_symbols == STRIP_UNNEEDED |
| 1351 | || strip_symbols == STRIP_ALL |
| 1352 | || discard_locals == LOCALS_ALL |
| 1353 | || convert_debugging) |
| 1354 | { |
| 1355 | /* By default we don't want to strip .reloc section. |
| 1356 | This section has for pe-coff special meaning. See |
| 1357 | pe-dll.c file in ld, and peXXigen.c in bfd for details. */ |
| 1358 | if (strcmp (bfd_section_name (sec), ".reloc") != 0) |
| 1359 | return TRUE; |
| 1360 | } |
| 1361 | |
| 1362 | if (strip_symbols == STRIP_DWO) |
| 1363 | return is_dwo_section (abfd, sec); |
| 1364 | |
| 1365 | if (strip_symbols == STRIP_NONDEBUG) |
| 1366 | return FALSE; |
| 1367 | } |
| 1368 | |
| 1369 | if (strip_symbols == STRIP_NONDWO) |
| 1370 | return !is_dwo_section (abfd, sec); |
| 1371 | |
| 1372 | return FALSE; |
| 1373 | } |
| 1374 | |
| 1375 | /* See if a section is being removed. */ |
| 1376 | |
| 1377 | static bfd_boolean |
| 1378 | is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) |
| 1379 | { |
| 1380 | if (is_strip_section_1 (abfd, sec)) |
| 1381 | return TRUE; |
| 1382 | |
| 1383 | if ((bfd_section_flags (sec) & SEC_GROUP) != 0) |
| 1384 | { |
| 1385 | asymbol *gsym; |
| 1386 | const char *gname; |
| 1387 | asection *elt, *first; |
| 1388 | |
| 1389 | gsym = group_signature (sec); |
| 1390 | /* Strip groups without a valid signature. */ |
| 1391 | if (gsym == NULL) |
| 1392 | return TRUE; |
| 1393 | |
| 1394 | /* PR binutils/3181 |
| 1395 | If we are going to strip the group signature symbol, then |
| 1396 | strip the group section too. */ |
| 1397 | gname = gsym->name; |
| 1398 | if ((strip_symbols == STRIP_ALL |
| 1399 | && !is_specified_symbol (gname, keep_specific_htab)) |
| 1400 | || is_specified_symbol (gname, strip_specific_htab)) |
| 1401 | return TRUE; |
| 1402 | |
| 1403 | /* Remove the group section if all members are removed. */ |
| 1404 | first = elt = elf_next_in_group (sec); |
| 1405 | while (elt != NULL) |
| 1406 | { |
| 1407 | if (!is_strip_section_1 (abfd, elt)) |
| 1408 | return FALSE; |
| 1409 | elt = elf_next_in_group (elt); |
| 1410 | if (elt == first) |
| 1411 | break; |
| 1412 | } |
| 1413 | |
| 1414 | return TRUE; |
| 1415 | } |
| 1416 | |
| 1417 | return FALSE; |
| 1418 | } |
| 1419 | |
| 1420 | static bfd_boolean |
| 1421 | is_nondebug_keep_contents_section (bfd *ibfd, asection *isection) |
| 1422 | { |
| 1423 | /* Always keep ELF note sections. */ |
| 1424 | if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour) |
| 1425 | return elf_section_type (isection) == SHT_NOTE; |
| 1426 | |
| 1427 | /* Always keep the .buildid section for PE/COFF. |
| 1428 | |
| 1429 | Strictly, this should be written "always keep the section storing the debug |
| 1430 | directory", but that may be the .text section for objects produced by some |
| 1431 | tools, which it is not sensible to keep. */ |
| 1432 | if (bfd_get_flavour (ibfd) == bfd_target_coff_flavour) |
| 1433 | return strcmp (bfd_section_name (isection), ".buildid") == 0; |
| 1434 | |
| 1435 | return FALSE; |
| 1436 | } |
| 1437 | |
| 1438 | /* Return true if SYM is a hidden symbol. */ |
| 1439 | |
| 1440 | static bfd_boolean |
| 1441 | is_hidden_symbol (asymbol *sym) |
| 1442 | { |
| 1443 | elf_symbol_type *elf_sym; |
| 1444 | |
| 1445 | elf_sym = elf_symbol_from (sym->the_bfd, sym); |
| 1446 | if (elf_sym != NULL) |
| 1447 | switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other)) |
| 1448 | { |
| 1449 | case STV_HIDDEN: |
| 1450 | case STV_INTERNAL: |
| 1451 | return TRUE; |
| 1452 | } |
| 1453 | return FALSE; |
| 1454 | } |
| 1455 | |
| 1456 | /* Empty name is hopefully never a valid symbol name. */ |
| 1457 | static const char * empty_name = ""; |
| 1458 | |
| 1459 | static bfd_boolean |
| 1460 | need_sym_before (struct addsym_node **node, const char *sym) |
| 1461 | { |
| 1462 | int count; |
| 1463 | struct addsym_node *ptr = add_sym_list; |
| 1464 | |
| 1465 | /* 'othersym' symbols are at the front of the list. */ |
| 1466 | for (count = 0; count < add_symbols; count++) |
| 1467 | { |
| 1468 | if (!ptr->othersym) |
| 1469 | break; |
| 1470 | if (ptr->othersym == empty_name) |
| 1471 | continue; |
| 1472 | else if (strcmp (ptr->othersym, sym) == 0) |
| 1473 | { |
| 1474 | free ((char *) ptr->othersym); |
| 1475 | ptr->othersym = empty_name; |
| 1476 | *node = ptr; |
| 1477 | return TRUE; |
| 1478 | } |
| 1479 | ptr = ptr->next; |
| 1480 | } |
| 1481 | return FALSE; |
| 1482 | } |
| 1483 | |
| 1484 | static asymbol * |
| 1485 | create_new_symbol (struct addsym_node *ptr, bfd *obfd) |
| 1486 | { |
| 1487 | asymbol *sym = bfd_make_empty_symbol (obfd); |
| 1488 | |
| 1489 | bfd_set_asymbol_name (sym, ptr->symdef); |
| 1490 | sym->value = ptr->symval; |
| 1491 | sym->flags = ptr->flags; |
| 1492 | if (ptr->section) |
| 1493 | { |
| 1494 | asection *sec = bfd_get_section_by_name (obfd, ptr->section); |
| 1495 | if (!sec) |
| 1496 | fatal (_("Section %s not found"), ptr->section); |
| 1497 | sym->section = sec; |
| 1498 | } |
| 1499 | else |
| 1500 | sym->section = bfd_abs_section_ptr; |
| 1501 | return sym; |
| 1502 | } |
| 1503 | |
| 1504 | /* Choose which symbol entries to copy; put the result in OSYMS. |
| 1505 | We don't copy in place, because that confuses the relocs. |
| 1506 | Return the number of symbols to print. */ |
| 1507 | |
| 1508 | static unsigned int |
| 1509 | filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms, |
| 1510 | asymbol **isyms, long symcount) |
| 1511 | { |
| 1512 | asymbol **from = isyms, **to = osyms; |
| 1513 | long src_count = 0, dst_count = 0; |
| 1514 | int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| 1515 | |
| 1516 | for (; src_count < symcount; src_count++) |
| 1517 | { |
| 1518 | asymbol *sym = from[src_count]; |
| 1519 | flagword flags = sym->flags; |
| 1520 | char *name = (char *) bfd_asymbol_name (sym); |
| 1521 | bfd_boolean keep; |
| 1522 | bfd_boolean used_in_reloc = FALSE; |
| 1523 | bfd_boolean undefined; |
| 1524 | bfd_boolean rem_leading_char; |
| 1525 | bfd_boolean add_leading_char; |
| 1526 | |
| 1527 | undefined = bfd_is_und_section (bfd_asymbol_section (sym)); |
| 1528 | |
| 1529 | if (add_sym_list) |
| 1530 | { |
| 1531 | struct addsym_node *ptr; |
| 1532 | |
| 1533 | if (need_sym_before (&ptr, name)) |
| 1534 | to[dst_count++] = create_new_symbol (ptr, obfd); |
| 1535 | } |
| 1536 | |
| 1537 | if (htab_elements (redefine_specific_htab) || section_rename_list) |
| 1538 | { |
| 1539 | char *new_name; |
| 1540 | |
| 1541 | new_name = (char *) lookup_sym_redefinition (name); |
| 1542 | if (new_name == name |
| 1543 | && (flags & BSF_SECTION_SYM) != 0) |
| 1544 | new_name = (char *) find_section_rename (name, NULL); |
| 1545 | bfd_set_asymbol_name (sym, new_name); |
| 1546 | name = new_name; |
| 1547 | } |
| 1548 | |
| 1549 | /* Check if we will remove the current leading character. */ |
| 1550 | rem_leading_char = |
| 1551 | (name[0] == bfd_get_symbol_leading_char (abfd)) |
| 1552 | && (change_leading_char |
| 1553 | || (remove_leading_char |
| 1554 | && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0 |
| 1555 | || undefined |
| 1556 | || bfd_is_com_section (bfd_asymbol_section (sym))))); |
| 1557 | |
| 1558 | /* Check if we will add a new leading character. */ |
| 1559 | add_leading_char = |
| 1560 | change_leading_char |
| 1561 | && (bfd_get_symbol_leading_char (obfd) != '\0') |
| 1562 | && (bfd_get_symbol_leading_char (abfd) == '\0' |
| 1563 | || (name[0] == bfd_get_symbol_leading_char (abfd))); |
| 1564 | |
| 1565 | /* Short circuit for change_leading_char if we can do it in-place. */ |
| 1566 | if (rem_leading_char && add_leading_char && !prefix_symbols_string) |
| 1567 | { |
| 1568 | name[0] = bfd_get_symbol_leading_char (obfd); |
| 1569 | bfd_set_asymbol_name (sym, name); |
| 1570 | rem_leading_char = FALSE; |
| 1571 | add_leading_char = FALSE; |
| 1572 | } |
| 1573 | |
| 1574 | /* Remove leading char. */ |
| 1575 | if (rem_leading_char) |
| 1576 | bfd_set_asymbol_name (sym, ++name); |
| 1577 | |
| 1578 | /* Add new leading char and/or prefix. */ |
| 1579 | if (add_leading_char || prefix_symbols_string) |
| 1580 | { |
| 1581 | char *n, *ptr; |
| 1582 | |
| 1583 | ptr = n = (char *) xmalloc (1 + strlen (prefix_symbols_string) |
| 1584 | + strlen (name) + 1); |
| 1585 | if (add_leading_char) |
| 1586 | *ptr++ = bfd_get_symbol_leading_char (obfd); |
| 1587 | |
| 1588 | if (prefix_symbols_string) |
| 1589 | { |
| 1590 | strcpy (ptr, prefix_symbols_string); |
| 1591 | ptr += strlen (prefix_symbols_string); |
| 1592 | } |
| 1593 | |
| 1594 | strcpy (ptr, name); |
| 1595 | bfd_set_asymbol_name (sym, n); |
| 1596 | name = n; |
| 1597 | } |
| 1598 | |
| 1599 | if (strip_symbols == STRIP_ALL) |
| 1600 | keep = FALSE; |
| 1601 | else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */ |
| 1602 | || ((flags & BSF_SECTION_SYM) != 0 |
| 1603 | && ((*bfd_asymbol_section (sym)->symbol_ptr_ptr)->flags |
| 1604 | & BSF_KEEP) != 0)) |
| 1605 | { |
| 1606 | keep = TRUE; |
| 1607 | used_in_reloc = TRUE; |
| 1608 | } |
| 1609 | else if (relocatable /* Relocatable file. */ |
| 1610 | && ((flags & (BSF_GLOBAL | BSF_WEAK)) != 0 |
| 1611 | || bfd_is_com_section (bfd_asymbol_section (sym)))) |
| 1612 | keep = TRUE; |
| 1613 | else if (bfd_decode_symclass (sym) == 'I') |
| 1614 | /* Global symbols in $idata sections need to be retained |
| 1615 | even if relocatable is FALSE. External users of the |
| 1616 | library containing the $idata section may reference these |
| 1617 | symbols. */ |
| 1618 | keep = TRUE; |
| 1619 | else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */ |
| 1620 | || (flags & BSF_WEAK) != 0 |
| 1621 | || undefined |
| 1622 | || bfd_is_com_section (bfd_asymbol_section (sym))) |
| 1623 | keep = strip_symbols != STRIP_UNNEEDED; |
| 1624 | else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */ |
| 1625 | keep = (strip_symbols != STRIP_DEBUG |
| 1626 | && strip_symbols != STRIP_UNNEEDED |
| 1627 | && ! convert_debugging); |
| 1628 | else if (bfd_coff_get_comdat_section (abfd, bfd_asymbol_section (sym))) |
| 1629 | /* COMDAT sections store special information in local |
| 1630 | symbols, so we cannot risk stripping any of them. */ |
| 1631 | keep = TRUE; |
| 1632 | else /* Local symbol. */ |
| 1633 | keep = (strip_symbols != STRIP_UNNEEDED |
| 1634 | && (discard_locals != LOCALS_ALL |
| 1635 | && (discard_locals != LOCALS_START_L |
| 1636 | || ! bfd_is_local_label (abfd, sym)))); |
| 1637 | |
| 1638 | if (keep && is_specified_symbol (name, strip_specific_htab)) |
| 1639 | { |
| 1640 | /* There are multiple ways to set 'keep' above, but if it |
| 1641 | was the relocatable symbol case, then that's an error. */ |
| 1642 | if (used_in_reloc) |
| 1643 | { |
| 1644 | non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name); |
| 1645 | status = 1; |
| 1646 | } |
| 1647 | else |
| 1648 | keep = FALSE; |
| 1649 | } |
| 1650 | |
| 1651 | if (keep |
| 1652 | && !(flags & BSF_KEEP) |
| 1653 | && is_specified_symbol (name, strip_unneeded_htab)) |
| 1654 | keep = FALSE; |
| 1655 | |
| 1656 | if (!keep |
| 1657 | && ((keep_file_symbols && (flags & BSF_FILE)) |
| 1658 | || is_specified_symbol (name, keep_specific_htab))) |
| 1659 | keep = TRUE; |
| 1660 | |
| 1661 | if (keep && is_strip_section (abfd, bfd_asymbol_section (sym))) |
| 1662 | keep = FALSE; |
| 1663 | |
| 1664 | if (keep) |
| 1665 | { |
| 1666 | if ((flags & BSF_GLOBAL) != 0 |
| 1667 | && (weaken || is_specified_symbol (name, weaken_specific_htab))) |
| 1668 | { |
| 1669 | sym->flags &= ~ BSF_GLOBAL; |
| 1670 | sym->flags |= BSF_WEAK; |
| 1671 | } |
| 1672 | |
| 1673 | if (!undefined |
| 1674 | && (flags & (BSF_GLOBAL | BSF_WEAK)) |
| 1675 | && (is_specified_symbol (name, localize_specific_htab) |
| 1676 | || (htab_elements (keepglobal_specific_htab) != 0 |
| 1677 | && ! is_specified_symbol (name, keepglobal_specific_htab)) |
| 1678 | || (localize_hidden && is_hidden_symbol (sym)))) |
| 1679 | { |
| 1680 | sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK); |
| 1681 | sym->flags |= BSF_LOCAL; |
| 1682 | } |
| 1683 | |
| 1684 | if (!undefined |
| 1685 | && (flags & BSF_LOCAL) |
| 1686 | && is_specified_symbol (name, globalize_specific_htab)) |
| 1687 | { |
| 1688 | sym->flags &= ~ BSF_LOCAL; |
| 1689 | sym->flags |= BSF_GLOBAL; |
| 1690 | } |
| 1691 | |
| 1692 | to[dst_count++] = sym; |
| 1693 | } |
| 1694 | } |
| 1695 | if (add_sym_list) |
| 1696 | { |
| 1697 | struct addsym_node *ptr = add_sym_list; |
| 1698 | |
| 1699 | for (src_count = 0; src_count < add_symbols; src_count++) |
| 1700 | { |
| 1701 | if (ptr->othersym) |
| 1702 | { |
| 1703 | if (ptr->othersym != empty_name) |
| 1704 | fatal (_("'before=%s' not found"), ptr->othersym); |
| 1705 | } |
| 1706 | else |
| 1707 | to[dst_count++] = create_new_symbol (ptr, obfd); |
| 1708 | |
| 1709 | ptr = ptr->next; |
| 1710 | } |
| 1711 | } |
| 1712 | |
| 1713 | to[dst_count] = NULL; |
| 1714 | |
| 1715 | return dst_count; |
| 1716 | } |
| 1717 | |
| 1718 | /* Find the redefined name of symbol SOURCE. */ |
| 1719 | |
| 1720 | static const char * |
| 1721 | lookup_sym_redefinition (const char *source) |
| 1722 | { |
| 1723 | struct redefine_node key_node = {(char *) source, NULL}; |
| 1724 | struct redefine_node *redef_node |
| 1725 | = (struct redefine_node *) htab_find (redefine_specific_htab, &key_node); |
| 1726 | |
| 1727 | return redef_node == NULL ? source : redef_node->target; |
| 1728 | } |
| 1729 | |
| 1730 | /* Insert a node into symbol redefine hash tabel. */ |
| 1731 | |
| 1732 | static void |
| 1733 | add_redefine_and_check (const char *cause, const char *source, |
| 1734 | const char *target) |
| 1735 | { |
| 1736 | struct redefine_node *new_node |
| 1737 | = (struct redefine_node *) xmalloc (sizeof (struct redefine_node)); |
| 1738 | |
| 1739 | new_node->source = strdup (source); |
| 1740 | new_node->target = strdup (target); |
| 1741 | |
| 1742 | if (htab_find (redefine_specific_htab, new_node) != HTAB_EMPTY_ENTRY) |
| 1743 | fatal (_("%s: Multiple redefinition of symbol \"%s\""), |
| 1744 | cause, source); |
| 1745 | |
| 1746 | if (htab_find (redefine_specific_reverse_htab, target) != HTAB_EMPTY_ENTRY) |
| 1747 | fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"), |
| 1748 | cause, target); |
| 1749 | |
| 1750 | /* Insert the NEW_NODE into hash table for quick search. */ |
| 1751 | add_specific_symbol_node (new_node, redefine_specific_htab); |
| 1752 | |
| 1753 | /* Insert the target string into the reverse hash table, this is needed for |
| 1754 | duplicated target string check. */ |
| 1755 | add_specific_symbol (new_node->target, redefine_specific_reverse_htab); |
| 1756 | |
| 1757 | } |
| 1758 | |
| 1759 | /* Handle the --redefine-syms option. Read lines containing "old new" |
| 1760 | from the file, and add them to the symbol redefine list. */ |
| 1761 | |
| 1762 | static void |
| 1763 | add_redefine_syms_file (const char *filename) |
| 1764 | { |
| 1765 | FILE *file; |
| 1766 | char *buf; |
| 1767 | size_t bufsize; |
| 1768 | size_t len; |
| 1769 | size_t outsym_off; |
| 1770 | int c, lineno; |
| 1771 | |
| 1772 | file = fopen (filename, "r"); |
| 1773 | if (file == NULL) |
| 1774 | fatal (_("couldn't open symbol redefinition file %s (error: %s)"), |
| 1775 | filename, strerror (errno)); |
| 1776 | |
| 1777 | bufsize = 100; |
| 1778 | buf = (char *) xmalloc (bufsize + 1 /* For the terminating NUL. */); |
| 1779 | |
| 1780 | lineno = 1; |
| 1781 | c = getc (file); |
| 1782 | len = 0; |
| 1783 | outsym_off = 0; |
| 1784 | while (c != EOF) |
| 1785 | { |
| 1786 | /* Collect the input symbol name. */ |
| 1787 | while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF) |
| 1788 | { |
| 1789 | if (c == '#') |
| 1790 | goto comment; |
| 1791 | buf[len++] = c; |
| 1792 | if (len >= bufsize) |
| 1793 | { |
| 1794 | bufsize *= 2; |
| 1795 | buf = (char *) xrealloc (buf, bufsize + 1); |
| 1796 | } |
| 1797 | c = getc (file); |
| 1798 | } |
| 1799 | buf[len++] = '\0'; |
| 1800 | if (c == EOF) |
| 1801 | break; |
| 1802 | |
| 1803 | /* Eat white space between the symbol names. */ |
| 1804 | while (IS_WHITESPACE (c)) |
| 1805 | c = getc (file); |
| 1806 | if (c == '#' || IS_LINE_TERMINATOR (c)) |
| 1807 | goto comment; |
| 1808 | if (c == EOF) |
| 1809 | break; |
| 1810 | |
| 1811 | /* Collect the output symbol name. */ |
| 1812 | outsym_off = len; |
| 1813 | while (! IS_WHITESPACE (c) && ! IS_LINE_TERMINATOR (c) && c != EOF) |
| 1814 | { |
| 1815 | if (c == '#') |
| 1816 | goto comment; |
| 1817 | buf[len++] = c; |
| 1818 | if (len >= bufsize) |
| 1819 | { |
| 1820 | bufsize *= 2; |
| 1821 | buf = (char *) xrealloc (buf, bufsize + 1); |
| 1822 | } |
| 1823 | c = getc (file); |
| 1824 | } |
| 1825 | buf[len++] = '\0'; |
| 1826 | if (c == EOF) |
| 1827 | break; |
| 1828 | |
| 1829 | /* Eat white space at end of line. */ |
| 1830 | while (! IS_LINE_TERMINATOR(c) && c != EOF && IS_WHITESPACE (c)) |
| 1831 | c = getc (file); |
| 1832 | if (c == '#') |
| 1833 | goto comment; |
| 1834 | /* Handle \r\n. */ |
| 1835 | if ((c == '\r' && (c = getc (file)) == '\n') |
| 1836 | || c == '\n' || c == EOF) |
| 1837 | { |
| 1838 | end_of_line: |
| 1839 | /* Append the redefinition to the list. */ |
| 1840 | if (buf[0] != '\0') |
| 1841 | add_redefine_and_check (filename, &buf[0], &buf[outsym_off]); |
| 1842 | |
| 1843 | lineno++; |
| 1844 | len = 0; |
| 1845 | outsym_off = 0; |
| 1846 | if (c == EOF) |
| 1847 | break; |
| 1848 | c = getc (file); |
| 1849 | continue; |
| 1850 | } |
| 1851 | else |
| 1852 | fatal (_("%s:%d: garbage found at end of line"), filename, lineno); |
| 1853 | comment: |
| 1854 | if (len != 0 && (outsym_off == 0 || outsym_off == len)) |
| 1855 | fatal (_("%s:%d: missing new symbol name"), filename, lineno); |
| 1856 | buf[len++] = '\0'; |
| 1857 | |
| 1858 | /* Eat the rest of the line and finish it. */ |
| 1859 | while (c != '\n' && c != EOF) |
| 1860 | c = getc (file); |
| 1861 | goto end_of_line; |
| 1862 | } |
| 1863 | |
| 1864 | if (len != 0) |
| 1865 | fatal (_("%s:%d: premature end of file"), filename, lineno); |
| 1866 | |
| 1867 | free (buf); |
| 1868 | fclose (file); |
| 1869 | } |
| 1870 | |
| 1871 | /* Copy unknown object file IBFD onto OBFD. |
| 1872 | Returns TRUE upon success, FALSE otherwise. */ |
| 1873 | |
| 1874 | static bfd_boolean |
| 1875 | copy_unknown_object (bfd *ibfd, bfd *obfd) |
| 1876 | { |
| 1877 | char *cbuf; |
| 1878 | int tocopy; |
| 1879 | long ncopied; |
| 1880 | long size; |
| 1881 | struct stat buf; |
| 1882 | |
| 1883 | if (bfd_stat_arch_elt (ibfd, &buf) != 0) |
| 1884 | { |
| 1885 | bfd_nonfatal_message (NULL, ibfd, NULL, NULL); |
| 1886 | return FALSE; |
| 1887 | } |
| 1888 | |
| 1889 | size = buf.st_size; |
| 1890 | if (size < 0) |
| 1891 | { |
| 1892 | non_fatal (_("stat returns negative size for `%s'"), |
| 1893 | bfd_get_archive_filename (ibfd)); |
| 1894 | return FALSE; |
| 1895 | } |
| 1896 | |
| 1897 | if (bfd_seek (ibfd, (file_ptr) 0, SEEK_SET) != 0) |
| 1898 | { |
| 1899 | bfd_nonfatal (bfd_get_archive_filename (ibfd)); |
| 1900 | return FALSE; |
| 1901 | } |
| 1902 | |
| 1903 | if (verbose) |
| 1904 | printf (_("copy from `%s' [unknown] to `%s' [unknown]\n"), |
| 1905 | bfd_get_archive_filename (ibfd), bfd_get_filename (obfd)); |
| 1906 | |
| 1907 | cbuf = (char *) xmalloc (BUFSIZE); |
| 1908 | ncopied = 0; |
| 1909 | while (ncopied < size) |
| 1910 | { |
| 1911 | tocopy = size - ncopied; |
| 1912 | if (tocopy > BUFSIZE) |
| 1913 | tocopy = BUFSIZE; |
| 1914 | |
| 1915 | if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd) |
| 1916 | != (bfd_size_type) tocopy) |
| 1917 | { |
| 1918 | bfd_nonfatal_message (NULL, ibfd, NULL, NULL); |
| 1919 | free (cbuf); |
| 1920 | return FALSE; |
| 1921 | } |
| 1922 | |
| 1923 | if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd) |
| 1924 | != (bfd_size_type) tocopy) |
| 1925 | { |
| 1926 | bfd_nonfatal_message (NULL, obfd, NULL, NULL); |
| 1927 | free (cbuf); |
| 1928 | return FALSE; |
| 1929 | } |
| 1930 | |
| 1931 | ncopied += tocopy; |
| 1932 | } |
| 1933 | |
| 1934 | /* We should at least to be able to read it back when copying an |
| 1935 | unknown object in an archive. */ |
| 1936 | chmod (bfd_get_filename (obfd), buf.st_mode | S_IRUSR); |
| 1937 | free (cbuf); |
| 1938 | return TRUE; |
| 1939 | } |
| 1940 | |
| 1941 | typedef struct objcopy_internal_note |
| 1942 | { |
| 1943 | Elf_Internal_Note note; |
| 1944 | unsigned long padded_namesz; |
| 1945 | bfd_vma start; |
| 1946 | bfd_vma end; |
| 1947 | } objcopy_internal_note; |
| 1948 | |
| 1949 | #define DEBUG_MERGE 0 |
| 1950 | |
| 1951 | #if DEBUG_MERGE |
| 1952 | #define merge_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__) |
| 1953 | #else |
| 1954 | #define merge_debug(format, ...) |
| 1955 | #endif |
| 1956 | |
| 1957 | /* Returns TRUE iff PNOTE1 overlaps or adjoins PNOTE2. */ |
| 1958 | |
| 1959 | static bfd_boolean |
| 1960 | overlaps_or_adjoins (objcopy_internal_note * pnote1, |
| 1961 | objcopy_internal_note * pnote2) |
| 1962 | { |
| 1963 | if (pnote1->end < pnote2->start) |
| 1964 | /* FIXME: Alignment of 16 bytes taken from x86_64 binaries. |
| 1965 | Really we should extract the alignment of the section |
| 1966 | covered by the notes. */ |
| 1967 | return BFD_ALIGN (pnote1->end, 16) < pnote2->start; |
| 1968 | |
| 1969 | if (pnote2->end < pnote2->start) |
| 1970 | return BFD_ALIGN (pnote2->end, 16) < pnote1->start; |
| 1971 | |
| 1972 | if (pnote1->end < pnote2->end) |
| 1973 | return TRUE; |
| 1974 | |
| 1975 | if (pnote2->end < pnote1->end) |
| 1976 | return TRUE; |
| 1977 | |
| 1978 | return FALSE; |
| 1979 | } |
| 1980 | |
| 1981 | /* Returns TRUE iff NEEDLE is fully contained by HAYSTACK. */ |
| 1982 | |
| 1983 | static bfd_boolean |
| 1984 | contained_by (objcopy_internal_note * needle, |
| 1985 | objcopy_internal_note * haystack) |
| 1986 | { |
| 1987 | return needle->start >= haystack->start && needle->end <= haystack->end; |
| 1988 | } |
| 1989 | |
| 1990 | static bfd_boolean |
| 1991 | is_open_note (objcopy_internal_note * pnote) |
| 1992 | { |
| 1993 | return pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_OPEN; |
| 1994 | } |
| 1995 | |
| 1996 | static bfd_boolean |
| 1997 | is_func_note (objcopy_internal_note * pnote) |
| 1998 | { |
| 1999 | return pnote->note.type == NT_GNU_BUILD_ATTRIBUTE_FUNC; |
| 2000 | } |
| 2001 | |
| 2002 | static bfd_boolean |
| 2003 | is_deleted_note (objcopy_internal_note * pnote) |
| 2004 | { |
| 2005 | return pnote->note.type == 0; |
| 2006 | } |
| 2007 | |
| 2008 | static bfd_boolean |
| 2009 | is_version_note (objcopy_internal_note * pnote) |
| 2010 | { |
| 2011 | return (pnote->note.namesz > 4 |
| 2012 | && pnote->note.namedata[0] == 'G' |
| 2013 | && pnote->note.namedata[1] == 'A' |
| 2014 | && pnote->note.namedata[2] == '$' |
| 2015 | && pnote->note.namedata[3] == GNU_BUILD_ATTRIBUTE_VERSION); |
| 2016 | } |
| 2017 | |
| 2018 | static bfd_boolean |
| 2019 | is_64bit (bfd * abfd) |
| 2020 | { |
| 2021 | /* Should never happen, but let's be paranoid. */ |
| 2022 | if (bfd_get_flavour (abfd) != bfd_target_elf_flavour) |
| 2023 | return FALSE; |
| 2024 | |
| 2025 | return elf_elfheader (abfd)->e_ident[EI_CLASS] == ELFCLASS64; |
| 2026 | } |
| 2027 | |
| 2028 | /* This sorting function is used to get the notes into an order |
| 2029 | that makes merging easy. */ |
| 2030 | |
| 2031 | static int |
| 2032 | compare_gnu_build_notes (const void * data1, const void * data2) |
| 2033 | { |
| 2034 | objcopy_internal_note * pnote1 = (objcopy_internal_note *) data1; |
| 2035 | objcopy_internal_note * pnote2 = (objcopy_internal_note *) data2; |
| 2036 | |
| 2037 | /* Sort notes based upon the attribute they record. */ |
| 2038 | int cmp = memcmp (pnote1->note.namedata + 3, |
| 2039 | pnote2->note.namedata + 3, |
| 2040 | pnote1->note.namesz < pnote2->note.namesz ? |
| 2041 | pnote1->note.namesz - 3 : pnote2->note.namesz - 3); |
| 2042 | if (cmp) |
| 2043 | return cmp; |
| 2044 | |
| 2045 | if (pnote1->end < pnote2->start) |
| 2046 | return -1; |
| 2047 | if (pnote1->start > pnote2->end) |
| 2048 | return 1; |
| 2049 | |
| 2050 | /* Overlaps - we should merge the two ranges. */ |
| 2051 | if (pnote1->start < pnote2->start) |
| 2052 | return -1; |
| 2053 | if (pnote1->end > pnote2->end) |
| 2054 | return 1; |
| 2055 | |
| 2056 | /* Put OPEN notes before function notes. */ |
| 2057 | if (is_open_note (pnote1) && ! is_open_note (pnote2)) |
| 2058 | return -1; |
| 2059 | if (! is_open_note (pnote1) && is_open_note (pnote2)) |
| 2060 | return 1; |
| 2061 | |
| 2062 | return 0; |
| 2063 | } |
| 2064 | |
| 2065 | /* This sorting function is used to get the notes into an order |
| 2066 | that makes eliminating address ranges easier. */ |
| 2067 | |
| 2068 | static int |
| 2069 | sort_gnu_build_notes (const void * data1, const void * data2) |
| 2070 | { |
| 2071 | objcopy_internal_note * pnote1 = (objcopy_internal_note *) data1; |
| 2072 | objcopy_internal_note * pnote2 = (objcopy_internal_note *) data2; |
| 2073 | |
| 2074 | if (pnote1->note.type != pnote2->note.type) |
| 2075 | { |
| 2076 | /* Move deleted notes to the end. */ |
| 2077 | if (is_deleted_note (pnote1)) /* 1: OFD 2: OFD */ |
| 2078 | return 1; |
| 2079 | |
| 2080 | /* Move OPEN notes to the start. */ |
| 2081 | if (is_open_note (pnote1)) /* 1: OF 2: OFD */ |
| 2082 | return -1; |
| 2083 | |
| 2084 | if (is_deleted_note (pnote2)) /* 1: F 2: O D */ |
| 2085 | return -1; |
| 2086 | |
| 2087 | return 1; /* 1: F 2: O */ |
| 2088 | } |
| 2089 | |
| 2090 | /* Sort by starting address. */ |
| 2091 | if (pnote1->start < pnote2->start) |
| 2092 | return -1; |
| 2093 | if (pnote1->start > pnote2->start) |
| 2094 | return 1; |
| 2095 | |
| 2096 | /* Then by end address (bigger range first). */ |
| 2097 | if (pnote1->end > pnote2->end) |
| 2098 | return -1; |
| 2099 | if (pnote1->end < pnote2->end) |
| 2100 | return 1; |
| 2101 | |
| 2102 | /* Then by attribute type. */ |
| 2103 | if (pnote1->note.namesz > 4 |
| 2104 | && pnote2->note.namesz > 4 |
| 2105 | && pnote1->note.namedata[3] != pnote2->note.namedata[3]) |
| 2106 | return pnote1->note.namedata[3] - pnote2->note.namedata[3]; |
| 2107 | |
| 2108 | return 0; |
| 2109 | } |
| 2110 | |
| 2111 | /* Merge the notes on SEC, removing redundant entries. |
| 2112 | Returns the new, smaller size of the section upon success. */ |
| 2113 | |
| 2114 | static bfd_size_type |
| 2115 | merge_gnu_build_notes (bfd * abfd, |
| 2116 | asection * sec, |
| 2117 | bfd_size_type size, |
| 2118 | bfd_byte * contents) |
| 2119 | { |
| 2120 | objcopy_internal_note * pnotes_end; |
| 2121 | objcopy_internal_note * pnotes = NULL; |
| 2122 | objcopy_internal_note * pnote; |
| 2123 | bfd_size_type remain = size; |
| 2124 | unsigned version_1_seen = 0; |
| 2125 | unsigned version_2_seen = 0; |
| 2126 | unsigned version_3_seen = 0; |
| 2127 | const char * err = NULL; |
| 2128 | bfd_byte * in = contents; |
| 2129 | unsigned long previous_func_start = 0; |
| 2130 | unsigned long previous_open_start = 0; |
| 2131 | unsigned long previous_func_end = 0; |
| 2132 | unsigned long previous_open_end = 0; |
| 2133 | long relsize; |
| 2134 | |
| 2135 | relsize = bfd_get_reloc_upper_bound (abfd, sec); |
| 2136 | if (relsize > 0) |
| 2137 | { |
| 2138 | arelent ** relpp; |
| 2139 | long relcount; |
| 2140 | |
| 2141 | /* If there are relocs associated with this section then we |
| 2142 | cannot safely merge it. */ |
| 2143 | relpp = (arelent **) xmalloc (relsize); |
| 2144 | relcount = bfd_canonicalize_reloc (abfd, sec, relpp, isympp); |
| 2145 | free (relpp); |
| 2146 | if (relcount != 0) |
| 2147 | { |
| 2148 | if (! is_strip) |
| 2149 | non_fatal (_("%s[%s]: Cannot merge - there are relocations against this section"), |
| 2150 | bfd_get_filename (abfd), bfd_section_name (sec)); |
| 2151 | goto done; |
| 2152 | } |
| 2153 | } |
| 2154 | |
| 2155 | /* Make a copy of the notes and convert to our internal format. |
| 2156 | Minimum size of a note is 12 bytes. Also locate the version |
| 2157 | notes and check them. */ |
| 2158 | pnote = pnotes = (objcopy_internal_note *) |
| 2159 | xcalloc ((size / 12), sizeof (* pnote)); |
| 2160 | while (remain >= 12) |
| 2161 | { |
| 2162 | bfd_vma start, end; |
| 2163 | |
| 2164 | pnote->note.namesz = bfd_get_32 (abfd, in); |
| 2165 | pnote->note.descsz = bfd_get_32 (abfd, in + 4); |
| 2166 | pnote->note.type = bfd_get_32 (abfd, in + 8); |
| 2167 | pnote->padded_namesz = (pnote->note.namesz + 3) & ~3; |
| 2168 | |
| 2169 | if (((pnote->note.descsz + 3) & ~3) != pnote->note.descsz) |
| 2170 | { |
| 2171 | err = _("corrupt GNU build attribute note: description size not a factor of 4"); |
| 2172 | goto done; |
| 2173 | } |
| 2174 | |
| 2175 | if (pnote->note.type != NT_GNU_BUILD_ATTRIBUTE_OPEN |
| 2176 | && pnote->note.type != NT_GNU_BUILD_ATTRIBUTE_FUNC) |
| 2177 | { |
| 2178 | err = _("corrupt GNU build attribute note: wrong note type"); |
| 2179 | goto done; |
| 2180 | } |
| 2181 | |
| 2182 | if (pnote->padded_namesz + pnote->note.descsz + 12 > remain) |
| 2183 | { |
| 2184 | err = _("corrupt GNU build attribute note: note too big"); |
| 2185 | goto done; |
| 2186 | } |
| 2187 | |
| 2188 | if (pnote->note.namesz < 2) |
| 2189 | { |
| 2190 | err = _("corrupt GNU build attribute note: name too small"); |
| 2191 | goto done; |
| 2192 | } |
| 2193 | |
| 2194 | pnote->note.namedata = (char *)(in + 12); |
| 2195 | pnote->note.descdata = (char *)(in + 12 + pnote->padded_namesz); |
| 2196 | |
| 2197 | remain -= 12 + pnote->padded_namesz + pnote->note.descsz; |
| 2198 | in += 12 + pnote->padded_namesz + pnote->note.descsz; |
| 2199 | |
| 2200 | if (pnote->note.namesz > 2 |
| 2201 | && pnote->note.namedata[0] == '$' |
| 2202 | && pnote->note.namedata[1] == GNU_BUILD_ATTRIBUTE_VERSION |
| 2203 | && pnote->note.namedata[2] == '1') |
| 2204 | ++ version_1_seen; |
| 2205 | else if (is_version_note (pnote)) |
| 2206 | { |
| 2207 | if (pnote->note.namedata[4] == '2') |
| 2208 | ++ version_2_seen; |
| 2209 | else if (pnote->note.namedata[4] == '3') |
| 2210 | ++ version_3_seen; |
| 2211 | else |
| 2212 | { |
| 2213 | err = _("corrupt GNU build attribute note: unsupported version"); |
| 2214 | goto done; |
| 2215 | } |
| 2216 | } |
| 2217 | |
| 2218 | switch (pnote->note.descsz) |
| 2219 | { |
| 2220 | case 0: |
| 2221 | start = end = 0; |
| 2222 | break; |
| 2223 | |
| 2224 | case 4: |
| 2225 | start = bfd_get_32 (abfd, pnote->note.descdata); |
| 2226 | /* FIXME: For version 1 and 2 notes we should try to |
| 2227 | calculate the end address by finding a symbol whose |
| 2228 | value is START, and then adding in its size. |
| 2229 | |
| 2230 | For now though, since v1 and v2 was not intended to |
| 2231 | handle gaps, we chose an artificially large end |
| 2232 | address. */ |
| 2233 | end = (bfd_vma) -1; |
| 2234 | break; |
| 2235 | |
| 2236 | case 8: |
| 2237 | if (! is_64bit (abfd)) |
| 2238 | { |
| 2239 | start = bfd_get_32 (abfd, pnote->note.descdata); |
| 2240 | end = bfd_get_32 (abfd, pnote->note.descdata + 4); |
| 2241 | } |
| 2242 | else |
| 2243 | { |
| 2244 | start = bfd_get_64 (abfd, pnote->note.descdata); |
| 2245 | /* FIXME: For version 1 and 2 notes we should try to |
| 2246 | calculate the end address by finding a symbol whose |
| 2247 | value is START, and then adding in its size. |
| 2248 | |
| 2249 | For now though, since v1 and v2 was not intended to |
| 2250 | handle gaps, we chose an artificially large end |
| 2251 | address. */ |
| 2252 | end = (bfd_vma) -1; |
| 2253 | } |
| 2254 | break; |
| 2255 | |
| 2256 | case 16: |
| 2257 | start = bfd_get_64 (abfd, pnote->note.descdata); |
| 2258 | end = bfd_get_64 (abfd, pnote->note.descdata + 8); |
| 2259 | break; |
| 2260 | |
| 2261 | default: |
| 2262 | err = _("corrupt GNU build attribute note: bad description size"); |
| 2263 | goto done; |
| 2264 | } |
| 2265 | |
| 2266 | if (is_open_note (pnote)) |
| 2267 | { |
| 2268 | if (start) |
| 2269 | previous_open_start = start; |
| 2270 | |
| 2271 | pnote->start = previous_open_start; |
| 2272 | |
| 2273 | if (end) |
| 2274 | previous_open_end = end; |
| 2275 | |
| 2276 | pnote->end = previous_open_end; |
| 2277 | } |
| 2278 | else |
| 2279 | { |
| 2280 | if (start) |
| 2281 | previous_func_start = start; |
| 2282 | |
| 2283 | pnote->start = previous_func_start; |
| 2284 | |
| 2285 | if (end) |
| 2286 | previous_func_end = end; |
| 2287 | |
| 2288 | pnote->end = previous_func_end; |
| 2289 | } |
| 2290 | |
| 2291 | if (pnote->note.namedata[pnote->note.namesz - 1] != 0) |
| 2292 | { |
| 2293 | err = _("corrupt GNU build attribute note: name not NUL terminated"); |
| 2294 | goto done; |
| 2295 | } |
| 2296 | |
| 2297 | pnote ++; |
| 2298 | } |
| 2299 | |
| 2300 | pnotes_end = pnote; |
| 2301 | |
| 2302 | /* Check that the notes are valid. */ |
| 2303 | if (remain != 0) |
| 2304 | { |
| 2305 | err = _("corrupt GNU build attribute notes: excess data at end"); |
| 2306 | goto done; |
| 2307 | } |
| 2308 | |
| 2309 | if (version_1_seen == 0 && version_2_seen == 0 && version_3_seen == 0) |
| 2310 | { |
| 2311 | #if 0 |
| 2312 | err = _("bad GNU build attribute notes: no known versions detected"); |
| 2313 | goto done; |
| 2314 | #else |
| 2315 | /* This happens with glibc. No idea why. */ |
| 2316 | non_fatal (_("%s[%s]: Warning: version note missing - assuming version 3"), |
| 2317 | bfd_get_filename (abfd), bfd_section_name (sec)); |
| 2318 | version_3_seen = 2; |
| 2319 | #endif |
| 2320 | } |
| 2321 | |
| 2322 | if ( (version_1_seen > 0 && version_2_seen > 0) |
| 2323 | || (version_1_seen > 0 && version_3_seen > 0) |
| 2324 | || (version_2_seen > 0 && version_3_seen > 0)) |
| 2325 | { |
| 2326 | err = _("bad GNU build attribute notes: multiple different versions"); |
| 2327 | goto done; |
| 2328 | } |
| 2329 | |
| 2330 | /* We are now only supporting the merging v3+ notes |
| 2331 | - it makes things much simpler. */ |
| 2332 | if (version_3_seen == 0) |
| 2333 | { |
| 2334 | merge_debug ("%s: skipping merge - not using v3 notes", bfd_section_name (sec)); |
| 2335 | goto done; |
| 2336 | } |
| 2337 | |
| 2338 | merge_debug ("Merging section %s which contains %ld notes\n", |
| 2339 | sec->name, pnotes_end - pnotes); |
| 2340 | |
| 2341 | /* Sort the notes. */ |
| 2342 | qsort (pnotes, pnotes_end - pnotes, sizeof (* pnotes), |
| 2343 | compare_gnu_build_notes); |
| 2344 | |
| 2345 | #if DEBUG_MERGE |
| 2346 | merge_debug ("Results of initial sort:\n"); |
| 2347 | for (pnote = pnotes; pnote < pnotes_end; pnote ++) |
| 2348 | merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n", |
| 2349 | (pnote->note.namedata - (char *) contents) - 12, |
| 2350 | pnote->start, pnote->end, |
| 2351 | pnote->note.type, |
| 2352 | pnote->note.namedata[3], |
| 2353 | pnote->note.namesz |
| 2354 | ); |
| 2355 | #endif |
| 2356 | |
| 2357 | /* Now merge the notes. The rules are: |
| 2358 | 1. If a note has a zero range, it can be eliminated. |
| 2359 | 2. If two notes have the same namedata then: |
| 2360 | 2a. If one note's range is fully covered by the other note |
| 2361 | then it can be deleted. |
| 2362 | 2b. If one note's range partially overlaps or adjoins the |
| 2363 | other note then if they are both of the same type (open |
| 2364 | or func) then they can be merged and one deleted. If |
| 2365 | they are of different types then they cannot be merged. */ |
| 2366 | for (pnote = pnotes; pnote < pnotes_end; pnote ++) |
| 2367 | { |
| 2368 | /* Skip already deleted notes. |
| 2369 | FIXME: Can this happen ? We are scanning forwards and |
| 2370 | deleting backwards after all. */ |
| 2371 | if (is_deleted_note (pnote)) |
| 2372 | continue; |
| 2373 | |
| 2374 | /* Rule 1 - delete 0-range notes. */ |
| 2375 | if (pnote->start == pnote->end) |
| 2376 | { |
| 2377 | merge_debug ("Delete note at offset %#08lx - empty range\n", |
| 2378 | (pnote->note.namedata - (char *) contents) - 12); |
| 2379 | pnote->note.type = 0; |
| 2380 | continue; |
| 2381 | } |
| 2382 | |
| 2383 | int iter; |
| 2384 | objcopy_internal_note * back; |
| 2385 | |
| 2386 | /* Rule 2: Check to see if there is an identical previous note. */ |
| 2387 | for (iter = 0, back = pnote - 1; back >= pnotes; back --) |
| 2388 | { |
| 2389 | if (is_deleted_note (back)) |
| 2390 | continue; |
| 2391 | |
| 2392 | /* Our sorting function should have placed all identically |
| 2393 | attributed notes together, so if we see a note of a different |
| 2394 | attribute type stop searching. */ |
| 2395 | if (back->note.namesz != pnote->note.namesz |
| 2396 | || memcmp (back->note.namedata, |
| 2397 | pnote->note.namedata, pnote->note.namesz) != 0) |
| 2398 | break; |
| 2399 | |
| 2400 | if (back->start == pnote->start |
| 2401 | && back->end == pnote->end) |
| 2402 | { |
| 2403 | merge_debug ("Delete note at offset %#08lx - duplicate of note at offset %#08lx\n", |
| 2404 | (pnote->note.namedata - (char *) contents) - 12, |
| 2405 | (back->note.namedata - (char *) contents) - 12); |
| 2406 | pnote->note.type = 0; |
| 2407 | break; |
| 2408 | } |
| 2409 | |
| 2410 | /* Rule 2a. */ |
| 2411 | if (contained_by (pnote, back)) |
| 2412 | { |
| 2413 | merge_debug ("Delete note at offset %#08lx - fully contained by note at %#08lx\n", |
| 2414 | (pnote->note.namedata - (char *) contents) - 12, |
| 2415 | (back->note.namedata - (char *) contents) - 12); |
| 2416 | pnote->note.type = 0; |
| 2417 | break; |
| 2418 | } |
| 2419 | |
| 2420 | #if DEBUG_MERGE |
| 2421 | /* This should not happen as we have sorted the |
| 2422 | notes with earlier starting addresses first. */ |
| 2423 | if (contained_by (back, pnote)) |
| 2424 | merge_debug ("ERROR: UNEXPECTED CONTAINMENT\n"); |
| 2425 | #endif |
| 2426 | |
| 2427 | /* Rule 2b. */ |
| 2428 | if (overlaps_or_adjoins (back, pnote) |
| 2429 | && is_func_note (back) == is_func_note (pnote)) |
| 2430 | { |
| 2431 | merge_debug ("Delete note at offset %#08lx - merge into note at %#08lx\n", |
| 2432 | (pnote->note.namedata - (char *) contents) - 12, |
| 2433 | (back->note.namedata - (char *) contents) - 12); |
| 2434 | |
| 2435 | back->end = back->end > pnote->end ? back->end : pnote->end; |
| 2436 | back->start = back->start < pnote->start ? back->start : pnote->start; |
| 2437 | pnote->note.type = 0; |
| 2438 | break; |
| 2439 | } |
| 2440 | |
| 2441 | /* Don't scan too far back however. */ |
| 2442 | if (iter ++ > 16) |
| 2443 | { |
| 2444 | /* FIXME: Not sure if this can ever be triggered. */ |
| 2445 | merge_debug ("ITERATION LIMIT REACHED\n"); |
| 2446 | break; |
| 2447 | } |
| 2448 | } |
| 2449 | #if DEBUG_MERGE |
| 2450 | if (! is_deleted_note (pnote)) |
| 2451 | merge_debug ("Unable to do anything with note at %#08lx\n", |
| 2452 | (pnote->note.namedata - (char *) contents) - 12); |
| 2453 | #endif |
| 2454 | } |
| 2455 | |
| 2456 | /* Resort the notes. */ |
| 2457 | merge_debug ("Final sorting of notes\n"); |
| 2458 | qsort (pnotes, pnotes_end - pnotes, sizeof (* pnotes), sort_gnu_build_notes); |
| 2459 | |
| 2460 | /* Reconstruct the ELF notes. */ |
| 2461 | bfd_byte * new_contents; |
| 2462 | bfd_byte * old; |
| 2463 | bfd_byte * new; |
| 2464 | bfd_size_type new_size; |
| 2465 | bfd_vma prev_start = 0; |
| 2466 | bfd_vma prev_end = 0; |
| 2467 | |
| 2468 | /* Not sure how, but the notes might grow in size. |
| 2469 | (eg see PR 1774507). Allow for this here. */ |
| 2470 | new = new_contents = xmalloc (size * 2); |
| 2471 | for (pnote = pnotes, old = contents; |
| 2472 | pnote < pnotes_end; |
| 2473 | pnote ++) |
| 2474 | { |
| 2475 | bfd_size_type note_size = 12 + pnote->padded_namesz + pnote->note.descsz; |
| 2476 | |
| 2477 | if (! is_deleted_note (pnote)) |
| 2478 | { |
| 2479 | /* Create the note, potentially using the |
| 2480 | address range of the previous note. */ |
| 2481 | if (pnote->start == prev_start && pnote->end == prev_end) |
| 2482 | { |
| 2483 | bfd_put_32 (abfd, pnote->note.namesz, new); |
| 2484 | bfd_put_32 (abfd, 0, new + 4); |
| 2485 | bfd_put_32 (abfd, pnote->note.type, new + 8); |
| 2486 | new += 12; |
| 2487 | memcpy (new, pnote->note.namedata, pnote->note.namesz); |
| 2488 | if (pnote->note.namesz < pnote->padded_namesz) |
| 2489 | memset (new + pnote->note.namesz, 0, pnote->padded_namesz - pnote->note.namesz); |
| 2490 | new += pnote->padded_namesz; |
| 2491 | } |
| 2492 | else |
| 2493 | { |
| 2494 | bfd_put_32 (abfd, pnote->note.namesz, new); |
| 2495 | bfd_put_32 (abfd, is_64bit (abfd) ? 16 : 8, new + 4); |
| 2496 | bfd_put_32 (abfd, pnote->note.type, new + 8); |
| 2497 | new += 12; |
| 2498 | memcpy (new, pnote->note.namedata, pnote->note.namesz); |
| 2499 | if (pnote->note.namesz < pnote->padded_namesz) |
| 2500 | memset (new + pnote->note.namesz, 0, pnote->padded_namesz - pnote->note.namesz); |
| 2501 | new += pnote->padded_namesz; |
| 2502 | if (is_64bit (abfd)) |
| 2503 | { |
| 2504 | bfd_put_64 (abfd, pnote->start, new); |
| 2505 | bfd_put_64 (abfd, pnote->end, new + 8); |
| 2506 | new += 16; |
| 2507 | } |
| 2508 | else |
| 2509 | { |
| 2510 | bfd_put_32 (abfd, pnote->start, new); |
| 2511 | bfd_put_32 (abfd, pnote->end, new + 4); |
| 2512 | new += 8; |
| 2513 | } |
| 2514 | |
| 2515 | prev_start = pnote->start; |
| 2516 | prev_end = pnote->end; |
| 2517 | } |
| 2518 | } |
| 2519 | |
| 2520 | old += note_size; |
| 2521 | } |
| 2522 | |
| 2523 | #if DEBUG_MERGE |
| 2524 | merge_debug ("Results of merge:\n"); |
| 2525 | for (pnote = pnotes; pnote < pnotes_end; pnote ++) |
| 2526 | if (! is_deleted_note (pnote)) |
| 2527 | merge_debug ("offset %#08lx range %#08lx..%#08lx type %ld attribute %d namesz %ld\n", |
| 2528 | (pnote->note.namedata - (char *) contents) - 12, |
| 2529 | pnote->start, pnote->end, |
| 2530 | pnote->note.type, |
| 2531 | pnote->note.namedata[3], |
| 2532 | pnote->note.namesz |
| 2533 | ); |
| 2534 | #endif |
| 2535 | |
| 2536 | new_size = new - new_contents; |
| 2537 | if (new_size < size) |
| 2538 | { |
| 2539 | memcpy (contents, new_contents, new_size); |
| 2540 | size = new_size; |
| 2541 | } |
| 2542 | free (new_contents); |
| 2543 | |
| 2544 | done: |
| 2545 | if (err) |
| 2546 | { |
| 2547 | bfd_set_error (bfd_error_bad_value); |
| 2548 | bfd_nonfatal_message (NULL, abfd, sec, err); |
| 2549 | status = 1; |
| 2550 | } |
| 2551 | |
| 2552 | free (pnotes); |
| 2553 | return size; |
| 2554 | } |
| 2555 | |
| 2556 | /* Copy object file IBFD onto OBFD. |
| 2557 | Returns TRUE upon success, FALSE otherwise. */ |
| 2558 | |
| 2559 | static bfd_boolean |
| 2560 | copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) |
| 2561 | { |
| 2562 | bfd_vma start; |
| 2563 | long symcount; |
| 2564 | asection **osections = NULL; |
| 2565 | asection *osec; |
| 2566 | asection *gnu_debuglink_section = NULL; |
| 2567 | bfd_size_type *gaps = NULL; |
| 2568 | bfd_size_type max_gap = 0; |
| 2569 | long symsize; |
| 2570 | void *dhandle; |
| 2571 | enum bfd_architecture iarch; |
| 2572 | unsigned int imach; |
| 2573 | unsigned int c, i; |
| 2574 | |
| 2575 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder |
| 2576 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
| 2577 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
| 2578 | { |
| 2579 | /* PR 17636: Call non-fatal so that we return to our parent who |
| 2580 | may need to tidy temporary files. */ |
| 2581 | non_fatal (_("Unable to change endianness of input file(s)")); |
| 2582 | return FALSE; |
| 2583 | } |
| 2584 | |
| 2585 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 2586 | { |
| 2587 | bfd_nonfatal_message (NULL, obfd, NULL, NULL); |
| 2588 | return FALSE; |
| 2589 | } |
| 2590 | |
| 2591 | if (ibfd->sections == NULL) |
| 2592 | { |
| 2593 | non_fatal (_("error: the input file '%s' has no sections"), |
| 2594 | bfd_get_archive_filename (ibfd)); |
| 2595 | return FALSE; |
| 2596 | } |
| 2597 | |
| 2598 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
| 2599 | { |
| 2600 | if ((do_debug_sections & compress) != 0 |
| 2601 | && do_debug_sections != compress) |
| 2602 | { |
| 2603 | non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"), |
| 2604 | bfd_get_archive_filename (ibfd)); |
| 2605 | return FALSE; |
| 2606 | } |
| 2607 | |
| 2608 | if (do_elf_stt_common) |
| 2609 | { |
| 2610 | non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"), |
| 2611 | bfd_get_archive_filename (ibfd)); |
| 2612 | return FALSE; |
| 2613 | } |
| 2614 | } |
| 2615 | |
| 2616 | if (verbose) |
| 2617 | printf (_("copy from `%s' [%s] to `%s' [%s]\n"), |
| 2618 | bfd_get_archive_filename (ibfd), bfd_get_target (ibfd), |
| 2619 | bfd_get_filename (obfd), bfd_get_target (obfd)); |
| 2620 | |
| 2621 | if (extract_symbol) |
| 2622 | start = 0; |
| 2623 | else |
| 2624 | { |
| 2625 | if (set_start_set) |
| 2626 | start = set_start; |
| 2627 | else |
| 2628 | start = bfd_get_start_address (ibfd); |
| 2629 | start += change_start; |
| 2630 | } |
| 2631 | |
| 2632 | /* Neither the start address nor the flags |
| 2633 | need to be set for a core file. */ |
| 2634 | if (bfd_get_format (obfd) != bfd_core) |
| 2635 | { |
| 2636 | flagword flags; |
| 2637 | |
| 2638 | flags = bfd_get_file_flags (ibfd); |
| 2639 | flags |= bfd_flags_to_set; |
| 2640 | flags &= ~bfd_flags_to_clear; |
| 2641 | flags &= bfd_applicable_file_flags (obfd); |
| 2642 | |
| 2643 | if (strip_symbols == STRIP_ALL) |
| 2644 | flags &= ~HAS_RELOC; |
| 2645 | |
| 2646 | if (!bfd_set_start_address (obfd, start) |
| 2647 | || !bfd_set_file_flags (obfd, flags)) |
| 2648 | { |
| 2649 | bfd_nonfatal_message (NULL, ibfd, NULL, NULL); |
| 2650 | return FALSE; |
| 2651 | } |
| 2652 | } |
| 2653 | |
| 2654 | /* Copy architecture of input file to output file. */ |
| 2655 | iarch = bfd_get_arch (ibfd); |
| 2656 | imach = bfd_get_mach (ibfd); |
| 2657 | if (input_arch) |
| 2658 | { |
| 2659 | if (iarch == bfd_arch_unknown) |
| 2660 | { |
| 2661 | iarch = input_arch->arch; |
| 2662 | imach = input_arch->mach; |
| 2663 | } |
| 2664 | else |
| 2665 | non_fatal (_("Input file `%s' ignores binary architecture parameter."), |
| 2666 | bfd_get_archive_filename (ibfd)); |
| 2667 | } |
| 2668 | if (iarch == bfd_arch_unknown |
| 2669 | && bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| 2670 | && bfd_get_flavour (obfd) == bfd_target_elf_flavour) |
| 2671 | { |
| 2672 | const struct elf_backend_data *bed = get_elf_backend_data (obfd); |
| 2673 | iarch = bed->arch; |
| 2674 | imach = 0; |
| 2675 | } |
| 2676 | if (!bfd_set_arch_mach (obfd, iarch, imach) |
| 2677 | && (ibfd->target_defaulted |
| 2678 | || bfd_get_arch (ibfd) != bfd_get_arch (obfd))) |
| 2679 | { |
| 2680 | if (bfd_get_arch (ibfd) == bfd_arch_unknown) |
| 2681 | non_fatal (_("Unable to recognise the format of the input file `%s'"), |
| 2682 | bfd_get_archive_filename (ibfd)); |
| 2683 | else |
| 2684 | non_fatal (_("Output file cannot represent architecture `%s'"), |
| 2685 | bfd_printable_arch_mach (bfd_get_arch (ibfd), |
| 2686 | bfd_get_mach (ibfd))); |
| 2687 | return FALSE; |
| 2688 | } |
| 2689 | |
| 2690 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 2691 | { |
| 2692 | bfd_nonfatal_message (NULL, ibfd, NULL, NULL); |
| 2693 | return FALSE; |
| 2694 | } |
| 2695 | |
| 2696 | if (bfd_get_flavour (obfd) == bfd_target_coff_flavour |
| 2697 | && bfd_pei_p (obfd)) |
| 2698 | { |
| 2699 | /* Set up PE parameters. */ |
| 2700 | pe_data_type *pe = pe_data (obfd); |
| 2701 | |
| 2702 | /* Copy PE parameters before changing them. */ |
| 2703 | if (bfd_get_flavour (ibfd) == bfd_target_coff_flavour |
| 2704 | && bfd_pei_p (ibfd)) |
| 2705 | pe->pe_opthdr = pe_data (ibfd)->pe_opthdr; |
| 2706 | |
| 2707 | if (pe_file_alignment != (bfd_vma) -1) |
| 2708 | pe->pe_opthdr.FileAlignment = pe_file_alignment; |
| 2709 | else |
| 2710 | pe_file_alignment = PE_DEF_FILE_ALIGNMENT; |
| 2711 | |
| 2712 | if (pe_heap_commit != (bfd_vma) -1) |
| 2713 | pe->pe_opthdr.SizeOfHeapCommit = pe_heap_commit; |
| 2714 | |
| 2715 | if (pe_heap_reserve != (bfd_vma) -1) |
| 2716 | pe->pe_opthdr.SizeOfHeapCommit = pe_heap_reserve; |
| 2717 | |
| 2718 | if (pe_image_base != (bfd_vma) -1) |
| 2719 | pe->pe_opthdr.ImageBase = pe_image_base; |
| 2720 | |
| 2721 | if (pe_section_alignment != (bfd_vma) -1) |
| 2722 | pe->pe_opthdr.SectionAlignment = pe_section_alignment; |
| 2723 | else |
| 2724 | pe_section_alignment = PE_DEF_SECTION_ALIGNMENT; |
| 2725 | |
| 2726 | if (pe_stack_commit != (bfd_vma) -1) |
| 2727 | pe->pe_opthdr.SizeOfStackCommit = pe_stack_commit; |
| 2728 | |
| 2729 | if (pe_stack_reserve != (bfd_vma) -1) |
| 2730 | pe->pe_opthdr.SizeOfStackCommit = pe_stack_reserve; |
| 2731 | |
| 2732 | if (pe_subsystem != -1) |
| 2733 | pe->pe_opthdr.Subsystem = pe_subsystem; |
| 2734 | |
| 2735 | if (pe_major_subsystem_version != -1) |
| 2736 | pe->pe_opthdr.MajorSubsystemVersion = pe_major_subsystem_version; |
| 2737 | |
| 2738 | if (pe_minor_subsystem_version != -1) |
| 2739 | pe->pe_opthdr.MinorSubsystemVersion = pe_minor_subsystem_version; |
| 2740 | |
| 2741 | if (pe_file_alignment > pe_section_alignment) |
| 2742 | { |
| 2743 | char file_alignment[20], section_alignment[20]; |
| 2744 | |
| 2745 | sprintf_vma (file_alignment, pe_file_alignment); |
| 2746 | sprintf_vma (section_alignment, pe_section_alignment); |
| 2747 | non_fatal (_("warning: file alignment (0x%s) > section alignment (0x%s)"), |
| 2748 | |
| 2749 | file_alignment, section_alignment); |
| 2750 | } |
| 2751 | } |
| 2752 | |
| 2753 | if (isympp) |
| 2754 | free (isympp); |
| 2755 | |
| 2756 | if (osympp != isympp) |
| 2757 | free (osympp); |
| 2758 | |
| 2759 | isympp = NULL; |
| 2760 | osympp = NULL; |
| 2761 | |
| 2762 | symsize = bfd_get_symtab_upper_bound (ibfd); |
| 2763 | if (symsize < 0) |
| 2764 | { |
| 2765 | bfd_nonfatal_message (NULL, ibfd, NULL, NULL); |
| 2766 | return FALSE; |
| 2767 | } |
| 2768 | |
| 2769 | osympp = isympp = (asymbol **) xmalloc (symsize); |
| 2770 | symcount = bfd_canonicalize_symtab (ibfd, isympp); |
| 2771 | if (symcount < 0) |
| 2772 | { |
| 2773 | bfd_nonfatal_message (NULL, ibfd, NULL, NULL); |
| 2774 | return FALSE; |
| 2775 | } |
| 2776 | /* PR 17512: file: d6323821 |
| 2777 | If the symbol table could not be loaded do not pretend that we have |
| 2778 | any symbols. This trips us up later on when we load the relocs. */ |
| 2779 | if (symcount == 0) |
| 2780 | { |
| 2781 | free (isympp); |
| 2782 | osympp = isympp = NULL; |
| 2783 | } |
| 2784 | |
| 2785 | /* BFD mandates that all output sections be created and sizes set before |
| 2786 | any output is done. Thus, we traverse all sections multiple times. */ |
| 2787 | bfd_map_over_sections (ibfd, setup_section, obfd); |
| 2788 | |
| 2789 | if (!extract_symbol) |
| 2790 | setup_bfd_headers (ibfd, obfd); |
| 2791 | |
| 2792 | if (add_sections != NULL) |
| 2793 | { |
| 2794 | struct section_add *padd; |
| 2795 | struct section_list *pset; |
| 2796 | |
| 2797 | for (padd = add_sections; padd != NULL; padd = padd->next) |
| 2798 | { |
| 2799 | flagword flags; |
| 2800 | |
| 2801 | pset = find_section_list (padd->name, FALSE, |
| 2802 | SECTION_CONTEXT_SET_FLAGS); |
| 2803 | if (pset != NULL) |
| 2804 | flags = pset->flags | SEC_HAS_CONTENTS; |
| 2805 | else |
| 2806 | flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA; |
| 2807 | |
| 2808 | /* bfd_make_section_with_flags() does not return very helpful |
| 2809 | error codes, so check for the most likely user error first. */ |
| 2810 | if (bfd_get_section_by_name (obfd, padd->name)) |
| 2811 | { |
| 2812 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 2813 | _("can't add section '%s'"), padd->name); |
| 2814 | return FALSE; |
| 2815 | } |
| 2816 | else |
| 2817 | { |
| 2818 | /* We use LINKER_CREATED here so that the backend hooks |
| 2819 | will create any special section type information, |
| 2820 | instead of presuming we know what we're doing merely |
| 2821 | because we set the flags. */ |
| 2822 | padd->section = bfd_make_section_with_flags |
| 2823 | (obfd, padd->name, flags | SEC_LINKER_CREATED); |
| 2824 | if (padd->section == NULL) |
| 2825 | { |
| 2826 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 2827 | _("can't create section `%s'"), |
| 2828 | padd->name); |
| 2829 | return FALSE; |
| 2830 | } |
| 2831 | } |
| 2832 | |
| 2833 | if (!bfd_set_section_size (padd->section, padd->size)) |
| 2834 | { |
| 2835 | bfd_nonfatal_message (NULL, obfd, padd->section, NULL); |
| 2836 | return FALSE; |
| 2837 | } |
| 2838 | |
| 2839 | pset = find_section_list (padd->name, FALSE, |
| 2840 | SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA); |
| 2841 | if (pset != NULL |
| 2842 | && !bfd_set_section_vma (padd->section, pset->vma_val)) |
| 2843 | { |
| 2844 | bfd_nonfatal_message (NULL, obfd, padd->section, NULL); |
| 2845 | return FALSE; |
| 2846 | } |
| 2847 | |
| 2848 | pset = find_section_list (padd->name, FALSE, |
| 2849 | SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA); |
| 2850 | if (pset != NULL) |
| 2851 | { |
| 2852 | padd->section->lma = pset->lma_val; |
| 2853 | |
| 2854 | if (!bfd_set_section_alignment |
| 2855 | (padd->section, bfd_section_alignment (padd->section))) |
| 2856 | { |
| 2857 | bfd_nonfatal_message (NULL, obfd, padd->section, NULL); |
| 2858 | return FALSE; |
| 2859 | } |
| 2860 | } |
| 2861 | } |
| 2862 | } |
| 2863 | |
| 2864 | if (update_sections != NULL) |
| 2865 | { |
| 2866 | struct section_add *pupdate; |
| 2867 | |
| 2868 | for (pupdate = update_sections; |
| 2869 | pupdate != NULL; |
| 2870 | pupdate = pupdate->next) |
| 2871 | { |
| 2872 | pupdate->section = bfd_get_section_by_name (ibfd, pupdate->name); |
| 2873 | if (pupdate->section == NULL) |
| 2874 | { |
| 2875 | non_fatal (_("error: %s not found, can't be updated"), pupdate->name); |
| 2876 | return FALSE; |
| 2877 | } |
| 2878 | |
| 2879 | osec = pupdate->section->output_section; |
| 2880 | if (!bfd_set_section_size (osec, pupdate->size)) |
| 2881 | { |
| 2882 | bfd_nonfatal_message (NULL, obfd, osec, NULL); |
| 2883 | return FALSE; |
| 2884 | } |
| 2885 | } |
| 2886 | } |
| 2887 | |
| 2888 | merged_note_section * merged_note_sections = NULL; |
| 2889 | if (merge_notes) |
| 2890 | { |
| 2891 | /* This palaver is necessary because we must set the output |
| 2892 | section size first, before its contents are ready. */ |
| 2893 | for (osec = ibfd->sections; osec != NULL; osec = osec->next) |
| 2894 | { |
| 2895 | if (! is_mergeable_note_section (ibfd, osec)) |
| 2896 | continue; |
| 2897 | |
| 2898 | /* If the section is going to be completly deleted then |
| 2899 | do not bother to merge it. */ |
| 2900 | if (osec->output_section == NULL) |
| 2901 | continue; |
| 2902 | |
| 2903 | bfd_size_type size = bfd_section_size (osec); |
| 2904 | |
| 2905 | if (size == 0) |
| 2906 | { |
| 2907 | bfd_nonfatal_message (NULL, ibfd, osec, |
| 2908 | _("warning: note section is empty")); |
| 2909 | continue; |
| 2910 | } |
| 2911 | |
| 2912 | merged_note_section * merged = xmalloc (sizeof * merged); |
| 2913 | merged->contents = NULL; |
| 2914 | if (! bfd_get_full_section_contents (ibfd, osec, & merged->contents)) |
| 2915 | { |
| 2916 | bfd_nonfatal_message (NULL, ibfd, osec, |
| 2917 | _("warning: could not load note section")); |
| 2918 | free (merged); |
| 2919 | continue; |
| 2920 | } |
| 2921 | |
| 2922 | merged->size = merge_gnu_build_notes (ibfd, osec, size, |
| 2923 | merged->contents); |
| 2924 | |
| 2925 | /* FIXME: Once we have read the contents in, we must write |
| 2926 | them out again. So even if the mergeing has achieved |
| 2927 | nothing we still add this entry to the merge list. */ |
| 2928 | |
| 2929 | if (size != merged->size |
| 2930 | && !bfd_set_section_size (osec->output_section, merged->size)) |
| 2931 | { |
| 2932 | bfd_nonfatal_message (NULL, obfd, osec, |
| 2933 | _("warning: failed to set merged notes size")); |
| 2934 | free (merged->contents); |
| 2935 | free (merged); |
| 2936 | continue; |
| 2937 | } |
| 2938 | |
| 2939 | /* Add section to list of merged sections. */ |
| 2940 | merged->sec = osec; |
| 2941 | merged->next = merged_note_sections; |
| 2942 | merged_note_sections = merged; |
| 2943 | } |
| 2944 | } |
| 2945 | |
| 2946 | if (dump_sections != NULL) |
| 2947 | { |
| 2948 | struct section_add * pdump; |
| 2949 | |
| 2950 | for (pdump = dump_sections; pdump != NULL; pdump = pdump->next) |
| 2951 | { |
| 2952 | osec = bfd_get_section_by_name (ibfd, pdump->name); |
| 2953 | if (osec == NULL) |
| 2954 | { |
| 2955 | bfd_nonfatal_message (NULL, ibfd, NULL, |
| 2956 | _("can't dump section '%s' - it does not exist"), |
| 2957 | pdump->name); |
| 2958 | continue; |
| 2959 | } |
| 2960 | |
| 2961 | if ((bfd_section_flags (osec) & SEC_HAS_CONTENTS) == 0) |
| 2962 | { |
| 2963 | bfd_nonfatal_message (NULL, ibfd, osec, |
| 2964 | _("can't dump section - it has no contents")); |
| 2965 | continue; |
| 2966 | } |
| 2967 | |
| 2968 | bfd_size_type size = bfd_section_size (osec); |
| 2969 | if (size == 0) |
| 2970 | { |
| 2971 | bfd_nonfatal_message (NULL, ibfd, osec, |
| 2972 | _("can't dump section - it is empty")); |
| 2973 | continue; |
| 2974 | } |
| 2975 | |
| 2976 | FILE * f; |
| 2977 | f = fopen (pdump->filename, FOPEN_WB); |
| 2978 | if (f == NULL) |
| 2979 | { |
| 2980 | bfd_nonfatal_message (pdump->filename, NULL, NULL, |
| 2981 | _("could not open section dump file")); |
| 2982 | continue; |
| 2983 | } |
| 2984 | |
| 2985 | bfd_byte *contents; |
| 2986 | if (bfd_malloc_and_get_section (ibfd, osec, &contents)) |
| 2987 | { |
| 2988 | if (fwrite (contents, 1, size, f) != size) |
| 2989 | { |
| 2990 | non_fatal (_("error writing section contents to %s (error: %s)"), |
| 2991 | pdump->filename, |
| 2992 | strerror (errno)); |
| 2993 | free (contents); |
| 2994 | fclose (f); |
| 2995 | return FALSE; |
| 2996 | } |
| 2997 | } |
| 2998 | else |
| 2999 | bfd_nonfatal_message (NULL, ibfd, osec, |
| 3000 | _("could not retrieve section contents")); |
| 3001 | |
| 3002 | fclose (f); |
| 3003 | free (contents); |
| 3004 | } |
| 3005 | } |
| 3006 | |
| 3007 | if (gnu_debuglink_filename != NULL) |
| 3008 | { |
| 3009 | /* PR 15125: Give a helpful warning message if |
| 3010 | the debuglink section already exists, and |
| 3011 | allow the rest of the copy to complete. */ |
| 3012 | if (bfd_get_section_by_name (obfd, ".gnu_debuglink")) |
| 3013 | { |
| 3014 | non_fatal (_("%s: debuglink section already exists"), |
| 3015 | bfd_get_filename (obfd)); |
| 3016 | gnu_debuglink_filename = NULL; |
| 3017 | } |
| 3018 | else |
| 3019 | { |
| 3020 | gnu_debuglink_section = bfd_create_gnu_debuglink_section |
| 3021 | (obfd, gnu_debuglink_filename); |
| 3022 | |
| 3023 | if (gnu_debuglink_section == NULL) |
| 3024 | { |
| 3025 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 3026 | _("cannot create debug link section `%s'"), |
| 3027 | gnu_debuglink_filename); |
| 3028 | return FALSE; |
| 3029 | } |
| 3030 | |
| 3031 | /* Special processing for PE format files. We |
| 3032 | have no way to distinguish PE from COFF here. */ |
| 3033 | if (bfd_get_flavour (obfd) == bfd_target_coff_flavour) |
| 3034 | { |
| 3035 | bfd_vma debuglink_vma; |
| 3036 | asection * highest_section; |
| 3037 | |
| 3038 | /* The PE spec requires that all sections be adjacent and sorted |
| 3039 | in ascending order of VMA. It also specifies that debug |
| 3040 | sections should be last. This is despite the fact that debug |
| 3041 | sections are not loaded into memory and so in theory have no |
| 3042 | use for a VMA. |
| 3043 | |
| 3044 | This means that the debuglink section must be given a non-zero |
| 3045 | VMA which makes it contiguous with other debug sections. So |
| 3046 | walk the current section list, find the section with the |
| 3047 | highest VMA and start the debuglink section after that one. */ |
| 3048 | for (osec = obfd->sections, highest_section = NULL; |
| 3049 | osec != NULL; |
| 3050 | osec = osec->next) |
| 3051 | if (osec->vma > 0 |
| 3052 | && (highest_section == NULL |
| 3053 | || osec->vma > highest_section->vma)) |
| 3054 | highest_section = osec; |
| 3055 | |
| 3056 | if (highest_section) |
| 3057 | debuglink_vma = BFD_ALIGN (highest_section->vma |
| 3058 | + highest_section->size, |
| 3059 | /* FIXME: We ought to be using |
| 3060 | COFF_PAGE_SIZE here or maybe |
| 3061 | bfd_section_alignment() (if it |
| 3062 | was set) but since this is for PE |
| 3063 | and we know the required alignment |
| 3064 | it is easier just to hard code it. */ |
| 3065 | 0x1000); |
| 3066 | else |
| 3067 | /* Umm, not sure what to do in this case. */ |
| 3068 | debuglink_vma = 0x1000; |
| 3069 | |
| 3070 | bfd_set_section_vma (gnu_debuglink_section, debuglink_vma); |
| 3071 | } |
| 3072 | } |
| 3073 | } |
| 3074 | |
| 3075 | c = bfd_count_sections (obfd); |
| 3076 | if (c != 0 |
| 3077 | && (gap_fill_set || pad_to_set)) |
| 3078 | { |
| 3079 | asection **set; |
| 3080 | |
| 3081 | /* We must fill in gaps between the sections and/or we must pad |
| 3082 | the last section to a specified address. We do this by |
| 3083 | grabbing a list of the sections, sorting them by VMA, and |
| 3084 | increasing the section sizes as required to fill the gaps. |
| 3085 | We write out the gap contents below. */ |
| 3086 | |
| 3087 | osections = (asection **) xmalloc (c * sizeof (asection *)); |
| 3088 | set = osections; |
| 3089 | bfd_map_over_sections (obfd, get_sections, &set); |
| 3090 | |
| 3091 | qsort (osections, c, sizeof (asection *), compare_section_lma); |
| 3092 | |
| 3093 | gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type)); |
| 3094 | memset (gaps, 0, c * sizeof (bfd_size_type)); |
| 3095 | |
| 3096 | if (gap_fill_set) |
| 3097 | { |
| 3098 | for (i = 0; i < c - 1; i++) |
| 3099 | { |
| 3100 | flagword flags; |
| 3101 | bfd_size_type size; |
| 3102 | bfd_vma gap_start, gap_stop; |
| 3103 | |
| 3104 | flags = bfd_section_flags (osections[i]); |
| 3105 | if ((flags & SEC_HAS_CONTENTS) == 0 |
| 3106 | || (flags & SEC_LOAD) == 0) |
| 3107 | continue; |
| 3108 | |
| 3109 | size = bfd_section_size (osections[i]); |
| 3110 | gap_start = bfd_section_lma (osections[i]) + size; |
| 3111 | gap_stop = bfd_section_lma (osections[i + 1]); |
| 3112 | if (gap_start < gap_stop) |
| 3113 | { |
| 3114 | if (!bfd_set_section_size (osections[i], |
| 3115 | size + (gap_stop - gap_start))) |
| 3116 | { |
| 3117 | bfd_nonfatal_message (NULL, obfd, osections[i], |
| 3118 | _("Can't fill gap after section")); |
| 3119 | status = 1; |
| 3120 | break; |
| 3121 | } |
| 3122 | gaps[i] = gap_stop - gap_start; |
| 3123 | if (max_gap < gap_stop - gap_start) |
| 3124 | max_gap = gap_stop - gap_start; |
| 3125 | } |
| 3126 | } |
| 3127 | } |
| 3128 | |
| 3129 | if (pad_to_set) |
| 3130 | { |
| 3131 | bfd_vma lma; |
| 3132 | bfd_size_type size; |
| 3133 | |
| 3134 | lma = bfd_section_lma (osections[c - 1]); |
| 3135 | size = bfd_section_size (osections[c - 1]); |
| 3136 | if (lma + size < pad_to) |
| 3137 | { |
| 3138 | if (!bfd_set_section_size (osections[c - 1], pad_to - lma)) |
| 3139 | { |
| 3140 | bfd_nonfatal_message (NULL, obfd, osections[c - 1], |
| 3141 | _("can't add padding")); |
| 3142 | status = 1; |
| 3143 | } |
| 3144 | else |
| 3145 | { |
| 3146 | gaps[c - 1] = pad_to - (lma + size); |
| 3147 | if (max_gap < pad_to - (lma + size)) |
| 3148 | max_gap = pad_to - (lma + size); |
| 3149 | } |
| 3150 | } |
| 3151 | } |
| 3152 | } |
| 3153 | |
| 3154 | /* Symbol filtering must happen after the output sections |
| 3155 | have been created, but before their contents are set. */ |
| 3156 | dhandle = NULL; |
| 3157 | if (convert_debugging) |
| 3158 | dhandle = read_debugging_info (ibfd, isympp, symcount, FALSE); |
| 3159 | |
| 3160 | if (strip_symbols == STRIP_DEBUG |
| 3161 | || strip_symbols == STRIP_ALL |
| 3162 | || strip_symbols == STRIP_UNNEEDED |
| 3163 | || strip_symbols == STRIP_NONDEBUG |
| 3164 | || strip_symbols == STRIP_DWO |
| 3165 | || strip_symbols == STRIP_NONDWO |
| 3166 | || discard_locals != LOCALS_UNDEF |
| 3167 | || localize_hidden |
| 3168 | || htab_elements (strip_specific_htab) != 0 |
| 3169 | || htab_elements (keep_specific_htab) != 0 |
| 3170 | || htab_elements (localize_specific_htab) != 0 |
| 3171 | || htab_elements (globalize_specific_htab) != 0 |
| 3172 | || htab_elements (keepglobal_specific_htab) != 0 |
| 3173 | || htab_elements (weaken_specific_htab) != 0 |
| 3174 | || htab_elements (redefine_specific_htab) != 0 |
| 3175 | || prefix_symbols_string |
| 3176 | || sections_removed |
| 3177 | || sections_copied |
| 3178 | || convert_debugging |
| 3179 | || change_leading_char |
| 3180 | || remove_leading_char |
| 3181 | || section_rename_list |
| 3182 | || weaken |
| 3183 | || add_symbols) |
| 3184 | { |
| 3185 | /* Mark symbols used in output relocations so that they |
| 3186 | are kept, even if they are local labels or static symbols. |
| 3187 | |
| 3188 | Note we iterate over the input sections examining their |
| 3189 | relocations since the relocations for the output sections |
| 3190 | haven't been set yet. mark_symbols_used_in_relocations will |
| 3191 | ignore input sections which have no corresponding output |
| 3192 | section. */ |
| 3193 | if (strip_symbols != STRIP_ALL) |
| 3194 | { |
| 3195 | bfd_set_error (bfd_error_no_error); |
| 3196 | bfd_map_over_sections (ibfd, |
| 3197 | mark_symbols_used_in_relocations, |
| 3198 | isympp); |
| 3199 | if (bfd_get_error () != bfd_error_no_error) |
| 3200 | { |
| 3201 | status = 1; |
| 3202 | return FALSE; |
| 3203 | } |
| 3204 | } |
| 3205 | |
| 3206 | osympp = (asymbol **) xmalloc ((symcount + add_symbols + 1) * sizeof (asymbol *)); |
| 3207 | symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount); |
| 3208 | } |
| 3209 | |
| 3210 | if (convert_debugging && dhandle != NULL) |
| 3211 | { |
| 3212 | bfd_boolean res; |
| 3213 | |
| 3214 | res = write_debugging_info (obfd, dhandle, &symcount, &osympp); |
| 3215 | |
| 3216 | free (dhandle); |
| 3217 | dhandle = NULL; /* Paranoia... */ |
| 3218 | |
| 3219 | if (! res) |
| 3220 | { |
| 3221 | status = 1; |
| 3222 | return FALSE; |
| 3223 | } |
| 3224 | } |
| 3225 | |
| 3226 | bfd_set_symtab (obfd, osympp, symcount); |
| 3227 | |
| 3228 | /* This has to happen before section positions are set. */ |
| 3229 | bfd_map_over_sections (ibfd, copy_relocations_in_section, obfd); |
| 3230 | |
| 3231 | /* This has to happen after the symbol table has been set. */ |
| 3232 | bfd_map_over_sections (ibfd, copy_section, obfd); |
| 3233 | |
| 3234 | if (add_sections != NULL) |
| 3235 | { |
| 3236 | struct section_add *padd; |
| 3237 | |
| 3238 | for (padd = add_sections; padd != NULL; padd = padd->next) |
| 3239 | { |
| 3240 | if (! bfd_set_section_contents (obfd, padd->section, padd->contents, |
| 3241 | 0, padd->size)) |
| 3242 | { |
| 3243 | bfd_nonfatal_message (NULL, obfd, padd->section, NULL); |
| 3244 | return FALSE; |
| 3245 | } |
| 3246 | } |
| 3247 | } |
| 3248 | |
| 3249 | if (update_sections != NULL) |
| 3250 | { |
| 3251 | struct section_add *pupdate; |
| 3252 | |
| 3253 | for (pupdate = update_sections; |
| 3254 | pupdate != NULL; |
| 3255 | pupdate = pupdate->next) |
| 3256 | { |
| 3257 | osec = pupdate->section->output_section; |
| 3258 | if (! bfd_set_section_contents (obfd, osec, pupdate->contents, |
| 3259 | 0, pupdate->size)) |
| 3260 | { |
| 3261 | bfd_nonfatal_message (NULL, obfd, osec, NULL); |
| 3262 | return FALSE; |
| 3263 | } |
| 3264 | } |
| 3265 | } |
| 3266 | |
| 3267 | if (merged_note_sections != NULL) |
| 3268 | { |
| 3269 | merged_note_section * merged = NULL; |
| 3270 | |
| 3271 | for (osec = obfd->sections; osec != NULL; osec = osec->next) |
| 3272 | { |
| 3273 | if (! is_mergeable_note_section (obfd, osec)) |
| 3274 | continue; |
| 3275 | |
| 3276 | if (merged == NULL) |
| 3277 | merged = merged_note_sections; |
| 3278 | |
| 3279 | /* It is likely that output sections are in the same order |
| 3280 | as the input sections, but do not assume that this is |
| 3281 | the case. */ |
| 3282 | if (strcmp (bfd_section_name (merged->sec), |
| 3283 | bfd_section_name (osec)) != 0) |
| 3284 | { |
| 3285 | for (merged = merged_note_sections; |
| 3286 | merged != NULL; |
| 3287 | merged = merged->next) |
| 3288 | if (strcmp (bfd_section_name (merged->sec), |
| 3289 | bfd_section_name (osec)) == 0) |
| 3290 | break; |
| 3291 | |
| 3292 | if (merged == NULL) |
| 3293 | { |
| 3294 | bfd_nonfatal_message |
| 3295 | (NULL, obfd, osec, |
| 3296 | _("error: failed to locate merged notes")); |
| 3297 | continue; |
| 3298 | } |
| 3299 | } |
| 3300 | |
| 3301 | if (merged->contents == NULL) |
| 3302 | { |
| 3303 | bfd_nonfatal_message |
| 3304 | (NULL, obfd, osec, |
| 3305 | _("error: failed to merge notes")); |
| 3306 | continue; |
| 3307 | } |
| 3308 | |
| 3309 | if (! bfd_set_section_contents (obfd, osec, merged->contents, 0, |
| 3310 | merged->size)) |
| 3311 | { |
| 3312 | bfd_nonfatal_message |
| 3313 | (NULL, obfd, osec, |
| 3314 | _("error: failed to copy merged notes into output")); |
| 3315 | return FALSE; |
| 3316 | } |
| 3317 | |
| 3318 | merged = merged->next; |
| 3319 | } |
| 3320 | |
| 3321 | /* Free the memory. */ |
| 3322 | merged_note_section * next; |
| 3323 | for (merged = merged_note_sections; merged != NULL; merged = next) |
| 3324 | { |
| 3325 | next = merged->next; |
| 3326 | free (merged->contents); |
| 3327 | free (merged); |
| 3328 | } |
| 3329 | } |
| 3330 | else if (merge_notes && ! is_strip) |
| 3331 | non_fatal (_("%s: Could not find any mergeable note sections"), |
| 3332 | bfd_get_filename (ibfd)); |
| 3333 | |
| 3334 | if (gnu_debuglink_filename != NULL) |
| 3335 | { |
| 3336 | if (! bfd_fill_in_gnu_debuglink_section |
| 3337 | (obfd, gnu_debuglink_section, gnu_debuglink_filename)) |
| 3338 | { |
| 3339 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 3340 | _("cannot fill debug link section `%s'"), |
| 3341 | gnu_debuglink_filename); |
| 3342 | return FALSE; |
| 3343 | } |
| 3344 | } |
| 3345 | |
| 3346 | if (gap_fill_set || pad_to_set) |
| 3347 | { |
| 3348 | bfd_byte *buf; |
| 3349 | |
| 3350 | /* Fill in the gaps. */ |
| 3351 | if (max_gap > 8192) |
| 3352 | max_gap = 8192; |
| 3353 | buf = (bfd_byte *) xmalloc (max_gap); |
| 3354 | memset (buf, gap_fill, max_gap); |
| 3355 | |
| 3356 | c = bfd_count_sections (obfd); |
| 3357 | for (i = 0; i < c; i++) |
| 3358 | { |
| 3359 | if (gaps[i] != 0) |
| 3360 | { |
| 3361 | bfd_size_type left; |
| 3362 | file_ptr off; |
| 3363 | |
| 3364 | left = gaps[i]; |
| 3365 | off = bfd_section_size (osections[i]) - left; |
| 3366 | |
| 3367 | while (left > 0) |
| 3368 | { |
| 3369 | bfd_size_type now; |
| 3370 | |
| 3371 | if (left > 8192) |
| 3372 | now = 8192; |
| 3373 | else |
| 3374 | now = left; |
| 3375 | |
| 3376 | if (! bfd_set_section_contents (obfd, osections[i], buf, |
| 3377 | off, now)) |
| 3378 | { |
| 3379 | bfd_nonfatal_message (NULL, obfd, osections[i], NULL); |
| 3380 | free (buf); |
| 3381 | return FALSE; |
| 3382 | } |
| 3383 | |
| 3384 | left -= now; |
| 3385 | off += now; |
| 3386 | } |
| 3387 | } |
| 3388 | } |
| 3389 | |
| 3390 | free (buf); |
| 3391 | free (gaps); |
| 3392 | gaps = NULL; |
| 3393 | } |
| 3394 | |
| 3395 | /* Allow the BFD backend to copy any private data it understands |
| 3396 | from the input BFD to the output BFD. This is done last to |
| 3397 | permit the routine to look at the filtered symbol table, which is |
| 3398 | important for the ECOFF code at least. */ |
| 3399 | if (! bfd_copy_private_bfd_data (ibfd, obfd)) |
| 3400 | { |
| 3401 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 3402 | _("error copying private BFD data")); |
| 3403 | return FALSE; |
| 3404 | } |
| 3405 | |
| 3406 | /* Switch to the alternate machine code. We have to do this at the |
| 3407 | very end, because we only initialize the header when we create |
| 3408 | the first section. */ |
| 3409 | if (use_alt_mach_code != 0) |
| 3410 | { |
| 3411 | if (! bfd_alt_mach_code (obfd, use_alt_mach_code)) |
| 3412 | { |
| 3413 | non_fatal (_("this target does not support %lu alternative machine codes"), |
| 3414 | use_alt_mach_code); |
| 3415 | if (bfd_get_flavour (obfd) == bfd_target_elf_flavour) |
| 3416 | { |
| 3417 | non_fatal (_("treating that number as an absolute e_machine value instead")); |
| 3418 | elf_elfheader (obfd)->e_machine = use_alt_mach_code; |
| 3419 | } |
| 3420 | else |
| 3421 | non_fatal (_("ignoring the alternative value")); |
| 3422 | } |
| 3423 | } |
| 3424 | |
| 3425 | return TRUE; |
| 3426 | } |
| 3427 | |
| 3428 | /* Read each archive element in turn from IBFD, copy the |
| 3429 | contents to temp file, and keep the temp file handle. |
| 3430 | If 'force_output_target' is TRUE then make sure that |
| 3431 | all elements in the new archive are of the type |
| 3432 | 'output_target'. */ |
| 3433 | |
| 3434 | static void |
| 3435 | copy_archive (bfd *ibfd, bfd *obfd, const char *output_target, |
| 3436 | bfd_boolean force_output_target, |
| 3437 | const bfd_arch_info_type *input_arch) |
| 3438 | { |
| 3439 | struct name_list |
| 3440 | { |
| 3441 | struct name_list *next; |
| 3442 | const char *name; |
| 3443 | bfd *obfd; |
| 3444 | } *list, *l; |
| 3445 | bfd **ptr = &obfd->archive_head; |
| 3446 | bfd *this_element; |
| 3447 | char *dir; |
| 3448 | const char *filename; |
| 3449 | |
| 3450 | /* PR 24281: It is not clear what should happen when copying a thin archive. |
| 3451 | One part is straight forward - if the output archive is in a different |
| 3452 | directory from the input archive then any relative paths in the library |
| 3453 | should be adjusted to the new location. But if any transformation |
| 3454 | options are active (eg strip, rename, add, etc) then the implication is |
| 3455 | that these should be applied to the files pointed to by the archive. |
| 3456 | But since objcopy is not destructive, this means that new files must be |
| 3457 | created, and there is no guidance for the names of the new files. (Plus |
| 3458 | this conflicts with one of the goals of thin libraries - only taking up |
| 3459 | a minimal amount of space in the file system). |
| 3460 | |
| 3461 | So for now we fail if an attempt is made to copy such libraries. */ |
| 3462 | if (ibfd->is_thin_archive) |
| 3463 | { |
| 3464 | status = 1; |
| 3465 | bfd_set_error (bfd_error_invalid_operation); |
| 3466 | bfd_nonfatal_message (NULL, ibfd, NULL, |
| 3467 | _("sorry: copying thin archives is not currently supported")); |
| 3468 | return; |
| 3469 | } |
| 3470 | |
| 3471 | /* Make a temp directory to hold the contents. */ |
| 3472 | dir = make_tempdir (bfd_get_filename (obfd)); |
| 3473 | if (dir == NULL) |
| 3474 | fatal (_("cannot create tempdir for archive copying (error: %s)"), |
| 3475 | strerror (errno)); |
| 3476 | |
| 3477 | if (strip_symbols == STRIP_ALL) |
| 3478 | obfd->has_armap = FALSE; |
| 3479 | else |
| 3480 | obfd->has_armap = ibfd->has_armap; |
| 3481 | obfd->is_thin_archive = ibfd->is_thin_archive; |
| 3482 | |
| 3483 | if (deterministic) |
| 3484 | obfd->flags |= BFD_DETERMINISTIC_OUTPUT; |
| 3485 | |
| 3486 | list = NULL; |
| 3487 | |
| 3488 | this_element = bfd_openr_next_archived_file (ibfd, NULL); |
| 3489 | |
| 3490 | if (!bfd_set_format (obfd, bfd_get_format (ibfd))) |
| 3491 | { |
| 3492 | status = 1; |
| 3493 | bfd_nonfatal_message (NULL, obfd, NULL, NULL); |
| 3494 | goto cleanup_and_exit; |
| 3495 | } |
| 3496 | |
| 3497 | while (!status && this_element != NULL) |
| 3498 | { |
| 3499 | char *output_name; |
| 3500 | bfd *output_bfd; |
| 3501 | bfd *last_element; |
| 3502 | struct stat buf; |
| 3503 | int stat_status = 0; |
| 3504 | bfd_boolean del = TRUE; |
| 3505 | bfd_boolean ok_object; |
| 3506 | |
| 3507 | /* PR binutils/17533: Do not allow directory traversal |
| 3508 | outside of the current directory tree by archive members. */ |
| 3509 | if (! is_valid_archive_path (bfd_get_filename (this_element))) |
| 3510 | { |
| 3511 | non_fatal (_("illegal pathname found in archive member: %s"), |
| 3512 | bfd_get_filename (this_element)); |
| 3513 | status = 1; |
| 3514 | goto cleanup_and_exit; |
| 3515 | } |
| 3516 | |
| 3517 | /* Create an output file for this member. */ |
| 3518 | output_name = concat (dir, "/", |
| 3519 | bfd_get_filename (this_element), (char *) 0); |
| 3520 | |
| 3521 | /* If the file already exists, make another temp dir. */ |
| 3522 | if (stat (output_name, &buf) >= 0) |
| 3523 | { |
| 3524 | char * tmpdir = make_tempdir (output_name); |
| 3525 | |
| 3526 | free (output_name); |
| 3527 | if (tmpdir == NULL) |
| 3528 | { |
| 3529 | non_fatal (_("cannot create tempdir for archive copying (error: %s)"), |
| 3530 | strerror (errno)); |
| 3531 | status = 1; |
| 3532 | goto cleanup_and_exit; |
| 3533 | } |
| 3534 | |
| 3535 | l = (struct name_list *) xmalloc (sizeof (struct name_list)); |
| 3536 | l->name = tmpdir; |
| 3537 | l->next = list; |
| 3538 | l->obfd = NULL; |
| 3539 | list = l; |
| 3540 | output_name = concat (tmpdir, "/", |
| 3541 | bfd_get_filename (this_element), (char *) 0); |
| 3542 | } |
| 3543 | |
| 3544 | if (preserve_dates) |
| 3545 | { |
| 3546 | stat_status = bfd_stat_arch_elt (this_element, &buf); |
| 3547 | |
| 3548 | if (stat_status != 0) |
| 3549 | non_fatal (_("internal stat error on %s"), |
| 3550 | bfd_get_filename (this_element)); |
| 3551 | } |
| 3552 | |
| 3553 | l = (struct name_list *) xmalloc (sizeof (struct name_list)); |
| 3554 | l->name = output_name; |
| 3555 | l->next = list; |
| 3556 | l->obfd = NULL; |
| 3557 | list = l; |
| 3558 | |
| 3559 | ok_object = bfd_check_format (this_element, bfd_object); |
| 3560 | if (!ok_object) |
| 3561 | bfd_nonfatal_message (NULL, this_element, NULL, |
| 3562 | _("Unable to recognise the format of file")); |
| 3563 | |
| 3564 | /* PR binutils/3110: Cope with archives |
| 3565 | containing multiple target types. */ |
| 3566 | if (force_output_target || !ok_object) |
| 3567 | output_bfd = bfd_openw (output_name, output_target); |
| 3568 | else |
| 3569 | output_bfd = bfd_openw (output_name, bfd_get_target (this_element)); |
| 3570 | |
| 3571 | if (output_bfd == NULL) |
| 3572 | { |
| 3573 | bfd_nonfatal_message (output_name, NULL, NULL, NULL); |
| 3574 | status = 1; |
| 3575 | goto cleanup_and_exit; |
| 3576 | } |
| 3577 | |
| 3578 | if (ok_object) |
| 3579 | { |
| 3580 | del = !copy_object (this_element, output_bfd, input_arch); |
| 3581 | |
| 3582 | if (del && bfd_get_arch (this_element) == bfd_arch_unknown) |
| 3583 | /* Try again as an unknown object file. */ |
| 3584 | ok_object = FALSE; |
| 3585 | else if (!bfd_close (output_bfd)) |
| 3586 | { |
| 3587 | bfd_nonfatal_message (output_name, NULL, NULL, NULL); |
| 3588 | /* Error in new object file. Don't change archive. */ |
| 3589 | status = 1; |
| 3590 | } |
| 3591 | } |
| 3592 | |
| 3593 | if (!ok_object) |
| 3594 | { |
| 3595 | del = !copy_unknown_object (this_element, output_bfd); |
| 3596 | if (!bfd_close_all_done (output_bfd)) |
| 3597 | { |
| 3598 | bfd_nonfatal_message (output_name, NULL, NULL, NULL); |
| 3599 | /* Error in new object file. Don't change archive. */ |
| 3600 | status = 1; |
| 3601 | } |
| 3602 | } |
| 3603 | |
| 3604 | if (del) |
| 3605 | { |
| 3606 | unlink (output_name); |
| 3607 | status = 1; |
| 3608 | } |
| 3609 | else |
| 3610 | { |
| 3611 | if (preserve_dates && stat_status == 0) |
| 3612 | set_times (output_name, &buf); |
| 3613 | |
| 3614 | /* Open the newly output file and attach to our list. */ |
| 3615 | output_bfd = bfd_openr (output_name, output_target); |
| 3616 | |
| 3617 | l->obfd = output_bfd; |
| 3618 | |
| 3619 | *ptr = output_bfd; |
| 3620 | ptr = &output_bfd->archive_next; |
| 3621 | |
| 3622 | last_element = this_element; |
| 3623 | |
| 3624 | this_element = bfd_openr_next_archived_file (ibfd, last_element); |
| 3625 | |
| 3626 | bfd_close (last_element); |
| 3627 | } |
| 3628 | } |
| 3629 | *ptr = NULL; |
| 3630 | |
| 3631 | filename = bfd_get_filename (obfd); |
| 3632 | if (!bfd_close (obfd)) |
| 3633 | { |
| 3634 | status = 1; |
| 3635 | bfd_nonfatal_message (filename, NULL, NULL, NULL); |
| 3636 | } |
| 3637 | |
| 3638 | filename = bfd_get_filename (ibfd); |
| 3639 | if (!bfd_close (ibfd)) |
| 3640 | { |
| 3641 | status = 1; |
| 3642 | bfd_nonfatal_message (filename, NULL, NULL, NULL); |
| 3643 | } |
| 3644 | |
| 3645 | cleanup_and_exit: |
| 3646 | /* Delete all the files that we opened. */ |
| 3647 | { |
| 3648 | struct name_list * next; |
| 3649 | |
| 3650 | for (l = list; l != NULL; l = next) |
| 3651 | { |
| 3652 | if (l->obfd == NULL) |
| 3653 | rmdir (l->name); |
| 3654 | else |
| 3655 | { |
| 3656 | bfd_close (l->obfd); |
| 3657 | unlink (l->name); |
| 3658 | } |
| 3659 | next = l->next; |
| 3660 | free (l); |
| 3661 | } |
| 3662 | } |
| 3663 | |
| 3664 | rmdir (dir); |
| 3665 | } |
| 3666 | |
| 3667 | static void |
| 3668 | set_long_section_mode (bfd *output_bfd, bfd *input_bfd, enum long_section_name_handling style) |
| 3669 | { |
| 3670 | /* This is only relevant to Coff targets. */ |
| 3671 | if (bfd_get_flavour (output_bfd) == bfd_target_coff_flavour) |
| 3672 | { |
| 3673 | if (style == KEEP |
| 3674 | && bfd_get_flavour (input_bfd) == bfd_target_coff_flavour) |
| 3675 | style = bfd_coff_long_section_names (input_bfd) ? ENABLE : DISABLE; |
| 3676 | bfd_coff_set_long_section_names (output_bfd, style != DISABLE); |
| 3677 | } |
| 3678 | } |
| 3679 | |
| 3680 | /* The top-level control. */ |
| 3681 | |
| 3682 | static void |
| 3683 | copy_file (const char *input_filename, const char *output_filename, |
| 3684 | const char *input_target, const char *output_target, |
| 3685 | const bfd_arch_info_type *input_arch) |
| 3686 | { |
| 3687 | bfd *ibfd; |
| 3688 | char **obj_matching; |
| 3689 | char **core_matching; |
| 3690 | off_t size = get_file_size (input_filename); |
| 3691 | |
| 3692 | if (size < 1) |
| 3693 | { |
| 3694 | if (size == 0) |
| 3695 | non_fatal (_("error: the input file '%s' is empty"), |
| 3696 | input_filename); |
| 3697 | status = 1; |
| 3698 | return; |
| 3699 | } |
| 3700 | |
| 3701 | /* To allow us to do "strip *" without dying on the first |
| 3702 | non-object file, failures are nonfatal. */ |
| 3703 | ibfd = bfd_openr (input_filename, input_target); |
| 3704 | if (ibfd == NULL) |
| 3705 | { |
| 3706 | bfd_nonfatal_message (input_filename, NULL, NULL, NULL); |
| 3707 | status = 1; |
| 3708 | return; |
| 3709 | } |
| 3710 | |
| 3711 | switch (do_debug_sections) |
| 3712 | { |
| 3713 | case compress: |
| 3714 | case compress_zlib: |
| 3715 | case compress_gnu_zlib: |
| 3716 | case compress_gabi_zlib: |
| 3717 | ibfd->flags |= BFD_COMPRESS; |
| 3718 | /* Don't check if input is ELF here since this information is |
| 3719 | only available after bfd_check_format_matches is called. */ |
| 3720 | if (do_debug_sections != compress_gnu_zlib) |
| 3721 | ibfd->flags |= BFD_COMPRESS_GABI; |
| 3722 | break; |
| 3723 | case decompress: |
| 3724 | ibfd->flags |= BFD_DECOMPRESS; |
| 3725 | break; |
| 3726 | default: |
| 3727 | break; |
| 3728 | } |
| 3729 | |
| 3730 | switch (do_elf_stt_common) |
| 3731 | { |
| 3732 | case elf_stt_common: |
| 3733 | ibfd->flags |= BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON; |
| 3734 | break; |
| 3735 | break; |
| 3736 | case no_elf_stt_common: |
| 3737 | ibfd->flags |= BFD_CONVERT_ELF_COMMON; |
| 3738 | break; |
| 3739 | default: |
| 3740 | break; |
| 3741 | } |
| 3742 | |
| 3743 | if (bfd_check_format (ibfd, bfd_archive)) |
| 3744 | { |
| 3745 | bfd_boolean force_output_target; |
| 3746 | bfd *obfd; |
| 3747 | |
| 3748 | /* bfd_get_target does not return the correct value until |
| 3749 | bfd_check_format succeeds. */ |
| 3750 | if (output_target == NULL) |
| 3751 | { |
| 3752 | output_target = bfd_get_target (ibfd); |
| 3753 | force_output_target = FALSE; |
| 3754 | } |
| 3755 | else |
| 3756 | force_output_target = TRUE; |
| 3757 | |
| 3758 | obfd = bfd_openw (output_filename, output_target); |
| 3759 | if (obfd == NULL) |
| 3760 | { |
| 3761 | bfd_nonfatal_message (output_filename, NULL, NULL, NULL); |
| 3762 | status = 1; |
| 3763 | return; |
| 3764 | } |
| 3765 | |
| 3766 | if (gnu_debuglink_filename != NULL) |
| 3767 | { |
| 3768 | non_fatal (_("--add-gnu-debuglink ignored for archive %s"), |
| 3769 | bfd_get_filename (ibfd)); |
| 3770 | gnu_debuglink_filename = NULL; |
| 3771 | } |
| 3772 | |
| 3773 | /* This is a no-op on non-Coff targets. */ |
| 3774 | set_long_section_mode (obfd, ibfd, long_section_names); |
| 3775 | |
| 3776 | copy_archive (ibfd, obfd, output_target, force_output_target, input_arch); |
| 3777 | } |
| 3778 | else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching)) |
| 3779 | { |
| 3780 | bfd *obfd; |
| 3781 | do_copy: |
| 3782 | |
| 3783 | /* bfd_get_target does not return the correct value until |
| 3784 | bfd_check_format succeeds. */ |
| 3785 | if (output_target == NULL) |
| 3786 | output_target = bfd_get_target (ibfd); |
| 3787 | |
| 3788 | obfd = bfd_openw (output_filename, output_target); |
| 3789 | if (obfd == NULL) |
| 3790 | { |
| 3791 | bfd_nonfatal_message (output_filename, NULL, NULL, NULL); |
| 3792 | status = 1; |
| 3793 | return; |
| 3794 | } |
| 3795 | /* This is a no-op on non-Coff targets. */ |
| 3796 | set_long_section_mode (obfd, ibfd, long_section_names); |
| 3797 | |
| 3798 | if (! copy_object (ibfd, obfd, input_arch)) |
| 3799 | status = 1; |
| 3800 | |
| 3801 | /* PR 17512: file: 0f15796a. |
| 3802 | If the file could not be copied it may not be in a writeable |
| 3803 | state. So use bfd_close_all_done to avoid the possibility of |
| 3804 | writing uninitialised data into the file. */ |
| 3805 | if (! (status ? bfd_close_all_done (obfd) : bfd_close (obfd))) |
| 3806 | { |
| 3807 | status = 1; |
| 3808 | bfd_nonfatal_message (output_filename, NULL, NULL, NULL); |
| 3809 | return; |
| 3810 | } |
| 3811 | |
| 3812 | if (!bfd_close (ibfd)) |
| 3813 | { |
| 3814 | status = 1; |
| 3815 | bfd_nonfatal_message (input_filename, NULL, NULL, NULL); |
| 3816 | return; |
| 3817 | } |
| 3818 | } |
| 3819 | else |
| 3820 | { |
| 3821 | bfd_error_type obj_error = bfd_get_error (); |
| 3822 | bfd_error_type core_error; |
| 3823 | |
| 3824 | if (bfd_check_format_matches (ibfd, bfd_core, &core_matching)) |
| 3825 | { |
| 3826 | /* This probably can't happen.. */ |
| 3827 | if (obj_error == bfd_error_file_ambiguously_recognized) |
| 3828 | free (obj_matching); |
| 3829 | goto do_copy; |
| 3830 | } |
| 3831 | |
| 3832 | core_error = bfd_get_error (); |
| 3833 | /* Report the object error in preference to the core error. */ |
| 3834 | if (obj_error != core_error) |
| 3835 | bfd_set_error (obj_error); |
| 3836 | |
| 3837 | bfd_nonfatal_message (input_filename, NULL, NULL, NULL); |
| 3838 | |
| 3839 | if (obj_error == bfd_error_file_ambiguously_recognized) |
| 3840 | { |
| 3841 | list_matching_formats (obj_matching); |
| 3842 | free (obj_matching); |
| 3843 | } |
| 3844 | if (core_error == bfd_error_file_ambiguously_recognized) |
| 3845 | { |
| 3846 | list_matching_formats (core_matching); |
| 3847 | free (core_matching); |
| 3848 | } |
| 3849 | |
| 3850 | status = 1; |
| 3851 | } |
| 3852 | } |
| 3853 | |
| 3854 | /* Add a name to the section renaming list. */ |
| 3855 | |
| 3856 | static void |
| 3857 | add_section_rename (const char * old_name, const char * new_name, |
| 3858 | flagword flags) |
| 3859 | { |
| 3860 | section_rename * srename; |
| 3861 | |
| 3862 | /* Check for conflicts first. */ |
| 3863 | for (srename = section_rename_list; srename != NULL; srename = srename->next) |
| 3864 | if (strcmp (srename->old_name, old_name) == 0) |
| 3865 | { |
| 3866 | /* Silently ignore duplicate definitions. */ |
| 3867 | if (strcmp (srename->new_name, new_name) == 0 |
| 3868 | && srename->flags == flags) |
| 3869 | return; |
| 3870 | |
| 3871 | fatal (_("Multiple renames of section %s"), old_name); |
| 3872 | } |
| 3873 | |
| 3874 | srename = (section_rename *) xmalloc (sizeof (* srename)); |
| 3875 | |
| 3876 | srename->old_name = old_name; |
| 3877 | srename->new_name = new_name; |
| 3878 | srename->flags = flags; |
| 3879 | srename->next = section_rename_list; |
| 3880 | |
| 3881 | section_rename_list = srename; |
| 3882 | } |
| 3883 | |
| 3884 | /* Check the section rename list for a new name of the input section |
| 3885 | called OLD_NAME. Returns the new name if one is found and sets |
| 3886 | RETURNED_FLAGS if non-NULL to the flags to be used for this section. */ |
| 3887 | |
| 3888 | static const char * |
| 3889 | find_section_rename (const char *old_name, flagword *returned_flags) |
| 3890 | { |
| 3891 | const section_rename *srename; |
| 3892 | |
| 3893 | for (srename = section_rename_list; srename != NULL; srename = srename->next) |
| 3894 | if (strcmp (srename->old_name, old_name) == 0) |
| 3895 | { |
| 3896 | if (returned_flags != NULL && srename->flags != (flagword) -1) |
| 3897 | *returned_flags = srename->flags; |
| 3898 | |
| 3899 | return srename->new_name; |
| 3900 | } |
| 3901 | |
| 3902 | return old_name; |
| 3903 | } |
| 3904 | |
| 3905 | /* Once each of the sections is copied, we may still need to do some |
| 3906 | finalization work for private section headers. Do that here. */ |
| 3907 | |
| 3908 | static void |
| 3909 | setup_bfd_headers (bfd *ibfd, bfd *obfd) |
| 3910 | { |
| 3911 | /* Allow the BFD backend to copy any private data it understands |
| 3912 | from the input section to the output section. */ |
| 3913 | if (! bfd_copy_private_header_data (ibfd, obfd)) |
| 3914 | { |
| 3915 | status = 1; |
| 3916 | bfd_nonfatal_message (NULL, ibfd, NULL, |
| 3917 | _("error in private header data")); |
| 3918 | return; |
| 3919 | } |
| 3920 | |
| 3921 | /* All went well. */ |
| 3922 | return; |
| 3923 | } |
| 3924 | |
| 3925 | /* Create a section in OBFD with the same |
| 3926 | name and attributes as ISECTION in IBFD. */ |
| 3927 | |
| 3928 | static void |
| 3929 | setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg) |
| 3930 | { |
| 3931 | bfd *obfd = (bfd *) obfdarg; |
| 3932 | struct section_list *p; |
| 3933 | sec_ptr osection; |
| 3934 | bfd_size_type size; |
| 3935 | bfd_vma vma; |
| 3936 | bfd_vma lma; |
| 3937 | flagword flags; |
| 3938 | const char *err; |
| 3939 | const char * name; |
| 3940 | char *prefix = NULL; |
| 3941 | bfd_boolean make_nobits; |
| 3942 | unsigned int alignment; |
| 3943 | |
| 3944 | if (is_strip_section (ibfd, isection)) |
| 3945 | return; |
| 3946 | |
| 3947 | /* Get the, possibly new, name of the output section. */ |
| 3948 | name = bfd_section_name (isection); |
| 3949 | flags = bfd_section_flags (isection); |
| 3950 | if (bfd_get_flavour (ibfd) != bfd_get_flavour (obfd)) |
| 3951 | { |
| 3952 | flags &= bfd_applicable_section_flags (ibfd); |
| 3953 | flags &= bfd_applicable_section_flags (obfd); |
| 3954 | } |
| 3955 | name = find_section_rename (name, &flags); |
| 3956 | |
| 3957 | /* Prefix sections. */ |
| 3958 | if (prefix_alloc_sections_string |
| 3959 | && (bfd_section_flags (isection) & SEC_ALLOC) != 0) |
| 3960 | prefix = prefix_alloc_sections_string; |
| 3961 | else if (prefix_sections_string) |
| 3962 | prefix = prefix_sections_string; |
| 3963 | |
| 3964 | if (prefix) |
| 3965 | { |
| 3966 | char *n; |
| 3967 | |
| 3968 | n = (char *) xmalloc (strlen (prefix) + strlen (name) + 1); |
| 3969 | strcpy (n, prefix); |
| 3970 | strcat (n, name); |
| 3971 | name = n; |
| 3972 | } |
| 3973 | |
| 3974 | make_nobits = FALSE; |
| 3975 | |
| 3976 | p = find_section_list (bfd_section_name (isection), FALSE, |
| 3977 | SECTION_CONTEXT_SET_FLAGS); |
| 3978 | if (p != NULL) |
| 3979 | flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC)); |
| 3980 | else if (strip_symbols == STRIP_NONDEBUG |
| 3981 | && (flags & (SEC_ALLOC | SEC_GROUP)) != 0 |
| 3982 | && !is_nondebug_keep_contents_section (ibfd, isection)) |
| 3983 | { |
| 3984 | flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP); |
| 3985 | if (bfd_get_flavour (obfd) == bfd_target_elf_flavour) |
| 3986 | { |
| 3987 | make_nobits = TRUE; |
| 3988 | |
| 3989 | /* Twiddle the input section flags so that it seems to |
| 3990 | elf.c:copy_private_bfd_data that section flags have not |
| 3991 | changed between input and output sections. This hack |
| 3992 | prevents wholesale rewriting of the program headers. */ |
| 3993 | isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD | SEC_GROUP); |
| 3994 | } |
| 3995 | } |
| 3996 | |
| 3997 | osection = bfd_make_section_anyway_with_flags (obfd, name, flags); |
| 3998 | |
| 3999 | if (osection == NULL) |
| 4000 | { |
| 4001 | err = _("failed to create output section"); |
| 4002 | goto loser; |
| 4003 | } |
| 4004 | |
| 4005 | if (make_nobits) |
| 4006 | elf_section_type (osection) = SHT_NOBITS; |
| 4007 | |
| 4008 | size = bfd_section_size (isection); |
| 4009 | size = bfd_convert_section_size (ibfd, isection, obfd, size); |
| 4010 | if (copy_byte >= 0) |
| 4011 | size = (size + interleave - 1) / interleave * copy_width; |
| 4012 | else if (extract_symbol) |
| 4013 | size = 0; |
| 4014 | if (!bfd_set_section_size (osection, size)) |
| 4015 | { |
| 4016 | err = _("failed to set size"); |
| 4017 | goto loser; |
| 4018 | } |
| 4019 | |
| 4020 | vma = bfd_section_vma (isection); |
| 4021 | p = find_section_list (bfd_section_name (isection), FALSE, |
| 4022 | SECTION_CONTEXT_ALTER_VMA | SECTION_CONTEXT_SET_VMA); |
| 4023 | if (p != NULL) |
| 4024 | { |
| 4025 | if (p->context & SECTION_CONTEXT_SET_VMA) |
| 4026 | vma = p->vma_val; |
| 4027 | else |
| 4028 | vma += p->vma_val; |
| 4029 | } |
| 4030 | else |
| 4031 | vma += change_section_address; |
| 4032 | |
| 4033 | if (!bfd_set_section_vma (osection, vma)) |
| 4034 | { |
| 4035 | err = _("failed to set vma"); |
| 4036 | goto loser; |
| 4037 | } |
| 4038 | |
| 4039 | lma = isection->lma; |
| 4040 | p = find_section_list (bfd_section_name (isection), FALSE, |
| 4041 | SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_SET_LMA); |
| 4042 | if (p != NULL) |
| 4043 | { |
| 4044 | if (p->context & SECTION_CONTEXT_ALTER_LMA) |
| 4045 | lma += p->lma_val; |
| 4046 | else |
| 4047 | lma = p->lma_val; |
| 4048 | } |
| 4049 | else |
| 4050 | lma += change_section_address; |
| 4051 | |
| 4052 | osection->lma = lma; |
| 4053 | |
| 4054 | p = find_section_list (bfd_section_name (isection), FALSE, |
| 4055 | SECTION_CONTEXT_SET_ALIGNMENT); |
| 4056 | if (p != NULL) |
| 4057 | alignment = p->alignment; |
| 4058 | else |
| 4059 | alignment = bfd_section_alignment (isection); |
| 4060 | |
| 4061 | /* FIXME: This is probably not enough. If we change the LMA we |
| 4062 | may have to recompute the header for the file as well. */ |
| 4063 | if (!bfd_set_section_alignment (osection, alignment)) |
| 4064 | { |
| 4065 | err = _("failed to set alignment"); |
| 4066 | goto loser; |
| 4067 | } |
| 4068 | |
| 4069 | /* Copy merge entity size. */ |
| 4070 | osection->entsize = isection->entsize; |
| 4071 | |
| 4072 | /* Copy compress status. */ |
| 4073 | osection->compress_status = isection->compress_status; |
| 4074 | |
| 4075 | /* This used to be mangle_section; we do here to avoid using |
| 4076 | bfd_get_section_by_name since some formats allow multiple |
| 4077 | sections with the same name. */ |
| 4078 | isection->output_section = osection; |
| 4079 | isection->output_offset = 0; |
| 4080 | |
| 4081 | if ((isection->flags & SEC_GROUP) != 0) |
| 4082 | { |
| 4083 | asymbol *gsym = group_signature (isection); |
| 4084 | |
| 4085 | if (gsym != NULL) |
| 4086 | { |
| 4087 | gsym->flags |= BSF_KEEP; |
| 4088 | if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour) |
| 4089 | elf_group_id (isection) = gsym; |
| 4090 | } |
| 4091 | } |
| 4092 | |
| 4093 | /* Allow the BFD backend to copy any private data it understands |
| 4094 | from the input section to the output section. */ |
| 4095 | if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection)) |
| 4096 | { |
| 4097 | err = _("failed to copy private data"); |
| 4098 | goto loser; |
| 4099 | } |
| 4100 | |
| 4101 | /* All went well. */ |
| 4102 | return; |
| 4103 | |
| 4104 | loser: |
| 4105 | status = 1; |
| 4106 | bfd_nonfatal_message (NULL, obfd, osection, err); |
| 4107 | } |
| 4108 | |
| 4109 | /* Return TRUE if input section ISECTION should be skipped. */ |
| 4110 | |
| 4111 | static bfd_boolean |
| 4112 | skip_section (bfd *ibfd, sec_ptr isection, bfd_boolean skip_copy) |
| 4113 | { |
| 4114 | sec_ptr osection; |
| 4115 | bfd_size_type size; |
| 4116 | flagword flags; |
| 4117 | |
| 4118 | /* If we have already failed earlier on, |
| 4119 | do not keep on generating complaints now. */ |
| 4120 | if (status != 0) |
| 4121 | return TRUE; |
| 4122 | |
| 4123 | if (extract_symbol) |
| 4124 | return TRUE; |
| 4125 | |
| 4126 | if (is_strip_section (ibfd, isection)) |
| 4127 | return TRUE; |
| 4128 | |
| 4129 | if (is_update_section (ibfd, isection)) |
| 4130 | return TRUE; |
| 4131 | |
| 4132 | /* When merging a note section we skip the copying of the contents, |
| 4133 | but not the copying of the relocs associated with the contents. */ |
| 4134 | if (skip_copy && is_mergeable_note_section (ibfd, isection)) |
| 4135 | return TRUE; |
| 4136 | |
| 4137 | flags = bfd_section_flags (isection); |
| 4138 | if ((flags & SEC_GROUP) != 0) |
| 4139 | return TRUE; |
| 4140 | |
| 4141 | osection = isection->output_section; |
| 4142 | size = bfd_section_size (isection); |
| 4143 | |
| 4144 | if (size == 0 || osection == 0) |
| 4145 | return TRUE; |
| 4146 | |
| 4147 | return FALSE; |
| 4148 | } |
| 4149 | |
| 4150 | /* Add section SECTION_PATTERN to the list of sections that will have their |
| 4151 | relocations removed. */ |
| 4152 | |
| 4153 | static void |
| 4154 | handle_remove_relocations_option (const char *section_pattern) |
| 4155 | { |
| 4156 | find_section_list (section_pattern, TRUE, SECTION_CONTEXT_REMOVE_RELOCS); |
| 4157 | } |
| 4158 | |
| 4159 | /* Return TRUE if ISECTION from IBFD should have its relocations removed, |
| 4160 | otherwise return FALSE. If the user has requested that relocations be |
| 4161 | removed from a section that does not have relocations then this |
| 4162 | function will still return TRUE. */ |
| 4163 | |
| 4164 | static bfd_boolean |
| 4165 | discard_relocations (bfd *ibfd ATTRIBUTE_UNUSED, asection *isection) |
| 4166 | { |
| 4167 | return (find_section_list (bfd_section_name (isection), FALSE, |
| 4168 | SECTION_CONTEXT_REMOVE_RELOCS) != NULL); |
| 4169 | } |
| 4170 | |
| 4171 | /* Wrapper for dealing with --remove-section (-R) command line arguments. |
| 4172 | A special case is detected here, if the user asks to remove a relocation |
| 4173 | section (one starting with ".rela" or ".rel") then this removal must |
| 4174 | be done using a different technique in a relocatable object. */ |
| 4175 | |
| 4176 | static void |
| 4177 | handle_remove_section_option (const char *section_pattern) |
| 4178 | { |
| 4179 | find_section_list (section_pattern, TRUE, SECTION_CONTEXT_REMOVE); |
| 4180 | if (strncmp (section_pattern, ".rel", 4) == 0) |
| 4181 | { |
| 4182 | section_pattern += 4; |
| 4183 | if (*section_pattern == 'a') |
| 4184 | section_pattern++; |
| 4185 | if (*section_pattern) |
| 4186 | handle_remove_relocations_option (section_pattern); |
| 4187 | } |
| 4188 | sections_removed = TRUE; |
| 4189 | } |
| 4190 | |
| 4191 | /* Copy relocations in input section ISECTION of IBFD to an output |
| 4192 | section with the same name in OBFDARG. If stripping then don't |
| 4193 | copy any relocation info. */ |
| 4194 | |
| 4195 | static void |
| 4196 | copy_relocations_in_section (bfd *ibfd, sec_ptr isection, void *obfdarg) |
| 4197 | { |
| 4198 | bfd *obfd = (bfd *) obfdarg; |
| 4199 | long relsize; |
| 4200 | arelent **relpp; |
| 4201 | long relcount; |
| 4202 | sec_ptr osection; |
| 4203 | |
| 4204 | if (skip_section (ibfd, isection, FALSE)) |
| 4205 | return; |
| 4206 | |
| 4207 | osection = isection->output_section; |
| 4208 | |
| 4209 | /* Core files and DWO files do not need to be relocated. */ |
| 4210 | if (bfd_get_format (obfd) == bfd_core |
| 4211 | || strip_symbols == STRIP_NONDWO |
| 4212 | || discard_relocations (ibfd, isection)) |
| 4213 | relsize = 0; |
| 4214 | else |
| 4215 | { |
| 4216 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| 4217 | |
| 4218 | if (relsize < 0) |
| 4219 | { |
| 4220 | /* Do not complain if the target does not support relocations. */ |
| 4221 | if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation) |
| 4222 | relsize = 0; |
| 4223 | else |
| 4224 | { |
| 4225 | status = 1; |
| 4226 | bfd_nonfatal_message (NULL, ibfd, isection, NULL); |
| 4227 | return; |
| 4228 | } |
| 4229 | } |
| 4230 | } |
| 4231 | |
| 4232 | if (relsize == 0) |
| 4233 | { |
| 4234 | bfd_set_reloc (obfd, osection, NULL, 0); |
| 4235 | osection->flags &= ~SEC_RELOC; |
| 4236 | } |
| 4237 | else |
| 4238 | { |
| 4239 | if (isection->orelocation != NULL) |
| 4240 | { |
| 4241 | /* Some other function has already set up the output relocs |
| 4242 | for us, so scan those instead of the default relocs. */ |
| 4243 | relcount = isection->reloc_count; |
| 4244 | relpp = isection->orelocation; |
| 4245 | } |
| 4246 | else |
| 4247 | { |
| 4248 | relpp = (arelent **) xmalloc (relsize); |
| 4249 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp); |
| 4250 | if (relcount < 0) |
| 4251 | { |
| 4252 | status = 1; |
| 4253 | bfd_nonfatal_message (NULL, ibfd, isection, |
| 4254 | _("relocation count is negative")); |
| 4255 | return; |
| 4256 | } |
| 4257 | } |
| 4258 | |
| 4259 | if (strip_symbols == STRIP_ALL) |
| 4260 | { |
| 4261 | /* Remove relocations which are not in |
| 4262 | keep_strip_specific_list. */ |
| 4263 | arelent **temp_relpp; |
| 4264 | long temp_relcount = 0; |
| 4265 | long i; |
| 4266 | |
| 4267 | temp_relpp = (arelent **) xmalloc (relsize); |
| 4268 | for (i = 0; i < relcount; i++) |
| 4269 | { |
| 4270 | /* PR 17512: file: 9e907e0c. */ |
| 4271 | if (relpp[i]->sym_ptr_ptr |
| 4272 | /* PR 20096 */ |
| 4273 | && * relpp[i]->sym_ptr_ptr) |
| 4274 | if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr), |
| 4275 | keep_specific_htab)) |
| 4276 | temp_relpp [temp_relcount++] = relpp [i]; |
| 4277 | } |
| 4278 | relcount = temp_relcount; |
| 4279 | if (isection->orelocation == NULL) |
| 4280 | free (relpp); |
| 4281 | relpp = temp_relpp; |
| 4282 | } |
| 4283 | |
| 4284 | bfd_set_reloc (obfd, osection, relcount == 0 ? NULL : relpp, relcount); |
| 4285 | if (relcount == 0) |
| 4286 | { |
| 4287 | osection->flags &= ~SEC_RELOC; |
| 4288 | free (relpp); |
| 4289 | } |
| 4290 | } |
| 4291 | } |
| 4292 | |
| 4293 | /* Copy the data of input section ISECTION of IBFD |
| 4294 | to an output section with the same name in OBFD. */ |
| 4295 | |
| 4296 | static void |
| 4297 | copy_section (bfd *ibfd, sec_ptr isection, void *obfdarg) |
| 4298 | { |
| 4299 | bfd *obfd = (bfd *) obfdarg; |
| 4300 | struct section_list *p; |
| 4301 | sec_ptr osection; |
| 4302 | bfd_size_type size; |
| 4303 | |
| 4304 | if (skip_section (ibfd, isection, TRUE)) |
| 4305 | return; |
| 4306 | |
| 4307 | osection = isection->output_section; |
| 4308 | /* The output SHF_COMPRESSED section size is different from input if |
| 4309 | ELF classes of input and output aren't the same. We can't use |
| 4310 | the output section size since --interleave will shrink the output |
| 4311 | section. Size will be updated if the section is converted. */ |
| 4312 | size = bfd_section_size (isection); |
| 4313 | |
| 4314 | if (bfd_section_flags (isection) & SEC_HAS_CONTENTS |
| 4315 | && bfd_section_flags (osection) & SEC_HAS_CONTENTS) |
| 4316 | { |
| 4317 | bfd_byte *memhunk = NULL; |
| 4318 | |
| 4319 | if (!bfd_get_full_section_contents (ibfd, isection, &memhunk) |
| 4320 | || !bfd_convert_section_contents (ibfd, isection, obfd, |
| 4321 | &memhunk, &size)) |
| 4322 | { |
| 4323 | status = 1; |
| 4324 | bfd_nonfatal_message (NULL, ibfd, isection, NULL); |
| 4325 | free (memhunk); |
| 4326 | return; |
| 4327 | } |
| 4328 | |
| 4329 | if (reverse_bytes) |
| 4330 | { |
| 4331 | /* We don't handle leftover bytes (too many possible behaviors, |
| 4332 | and we don't know what the user wants). The section length |
| 4333 | must be a multiple of the number of bytes to swap. */ |
| 4334 | if ((size % reverse_bytes) == 0) |
| 4335 | { |
| 4336 | unsigned long i, j; |
| 4337 | bfd_byte b; |
| 4338 | |
| 4339 | for (i = 0; i < size; i += reverse_bytes) |
| 4340 | for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++) |
| 4341 | { |
| 4342 | bfd_byte *m = (bfd_byte *) memhunk; |
| 4343 | |
| 4344 | b = m[i + j]; |
| 4345 | m[i + j] = m[(i + reverse_bytes) - (j + 1)]; |
| 4346 | m[(i + reverse_bytes) - (j + 1)] = b; |
| 4347 | } |
| 4348 | } |
| 4349 | else |
| 4350 | /* User must pad the section up in order to do this. */ |
| 4351 | fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"), |
| 4352 | bfd_section_name (isection), reverse_bytes); |
| 4353 | } |
| 4354 | |
| 4355 | if (copy_byte >= 0) |
| 4356 | { |
| 4357 | /* Keep only every `copy_byte'th byte in MEMHUNK. */ |
| 4358 | char *from = (char *) memhunk + copy_byte; |
| 4359 | char *to = (char *) memhunk; |
| 4360 | char *end = (char *) memhunk + size; |
| 4361 | int i; |
| 4362 | |
| 4363 | /* If the section address is not exactly divisible by the interleave, |
| 4364 | then we must bias the from address. If the copy_byte is less than |
| 4365 | the bias, then we must skip forward one interleave, and increment |
| 4366 | the final lma. */ |
| 4367 | int extra = isection->lma % interleave; |
| 4368 | from -= extra; |
| 4369 | if (copy_byte < extra) |
| 4370 | from += interleave; |
| 4371 | |
| 4372 | for (; from < end; from += interleave) |
| 4373 | for (i = 0; i < copy_width; i++) |
| 4374 | { |
| 4375 | if (&from[i] >= end) |
| 4376 | break; |
| 4377 | *to++ = from[i]; |
| 4378 | } |
| 4379 | |
| 4380 | size = (size + interleave - 1 - copy_byte) / interleave * copy_width; |
| 4381 | osection->lma /= interleave; |
| 4382 | if (copy_byte < extra) |
| 4383 | osection->lma++; |
| 4384 | } |
| 4385 | |
| 4386 | if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size)) |
| 4387 | { |
| 4388 | status = 1; |
| 4389 | bfd_nonfatal_message (NULL, obfd, osection, NULL); |
| 4390 | free (memhunk); |
| 4391 | return; |
| 4392 | } |
| 4393 | free (memhunk); |
| 4394 | } |
| 4395 | else if ((p = find_section_list (bfd_section_name (isection), |
| 4396 | FALSE, SECTION_CONTEXT_SET_FLAGS)) != NULL |
| 4397 | && (p->flags & SEC_HAS_CONTENTS) != 0) |
| 4398 | { |
| 4399 | void *memhunk = xmalloc (size); |
| 4400 | |
| 4401 | /* We don't permit the user to turn off the SEC_HAS_CONTENTS |
| 4402 | flag--they can just remove the section entirely and add it |
| 4403 | back again. However, we do permit them to turn on the |
| 4404 | SEC_HAS_CONTENTS flag, and take it to mean that the section |
| 4405 | contents should be zeroed out. */ |
| 4406 | |
| 4407 | memset (memhunk, 0, size); |
| 4408 | if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size)) |
| 4409 | { |
| 4410 | status = 1; |
| 4411 | bfd_nonfatal_message (NULL, obfd, osection, NULL); |
| 4412 | free (memhunk); |
| 4413 | return; |
| 4414 | } |
| 4415 | free (memhunk); |
| 4416 | } |
| 4417 | } |
| 4418 | |
| 4419 | /* Get all the sections. This is used when --gap-fill or --pad-to is |
| 4420 | used. */ |
| 4421 | |
| 4422 | static void |
| 4423 | get_sections (bfd *obfd ATTRIBUTE_UNUSED, asection *osection, void *secppparg) |
| 4424 | { |
| 4425 | asection ***secppp = (asection ***) secppparg; |
| 4426 | |
| 4427 | **secppp = osection; |
| 4428 | ++(*secppp); |
| 4429 | } |
| 4430 | |
| 4431 | /* Sort sections by LMA. This is called via qsort, and is used when |
| 4432 | --gap-fill or --pad-to is used. We force non loadable or empty |
| 4433 | sections to the front, where they are easier to ignore. */ |
| 4434 | |
| 4435 | static int |
| 4436 | compare_section_lma (const void *arg1, const void *arg2) |
| 4437 | { |
| 4438 | const asection *sec1 = *(const asection **) arg1; |
| 4439 | const asection *sec2 = *(const asection **) arg2; |
| 4440 | flagword flags1, flags2; |
| 4441 | |
| 4442 | /* Sort non loadable sections to the front. */ |
| 4443 | flags1 = sec1->flags; |
| 4444 | flags2 = sec2->flags; |
| 4445 | if ((flags1 & SEC_HAS_CONTENTS) == 0 |
| 4446 | || (flags1 & SEC_LOAD) == 0) |
| 4447 | { |
| 4448 | if ((flags2 & SEC_HAS_CONTENTS) != 0 |
| 4449 | && (flags2 & SEC_LOAD) != 0) |
| 4450 | return -1; |
| 4451 | } |
| 4452 | else |
| 4453 | { |
| 4454 | if ((flags2 & SEC_HAS_CONTENTS) == 0 |
| 4455 | || (flags2 & SEC_LOAD) == 0) |
| 4456 | return 1; |
| 4457 | } |
| 4458 | |
| 4459 | /* Sort sections by LMA. */ |
| 4460 | if (sec1->lma > sec2->lma) |
| 4461 | return 1; |
| 4462 | if (sec1->lma < sec2->lma) |
| 4463 | return -1; |
| 4464 | |
| 4465 | /* Sort sections with the same LMA by size. */ |
| 4466 | if (bfd_section_size (sec1) > bfd_section_size (sec2)) |
| 4467 | return 1; |
| 4468 | if (bfd_section_size (sec1) < bfd_section_size (sec2)) |
| 4469 | return -1; |
| 4470 | |
| 4471 | if (sec1->id > sec2->id) |
| 4472 | return 1; |
| 4473 | if (sec1->id < sec2->id) |
| 4474 | return -1; |
| 4475 | return 0; |
| 4476 | } |
| 4477 | |
| 4478 | /* Mark all the symbols which will be used in output relocations with |
| 4479 | the BSF_KEEP flag so that those symbols will not be stripped. |
| 4480 | |
| 4481 | Ignore relocations which will not appear in the output file. */ |
| 4482 | |
| 4483 | static void |
| 4484 | mark_symbols_used_in_relocations (bfd *ibfd, sec_ptr isection, void *symbolsarg) |
| 4485 | { |
| 4486 | asymbol **symbols = (asymbol **) symbolsarg; |
| 4487 | long relsize; |
| 4488 | arelent **relpp; |
| 4489 | long relcount, i; |
| 4490 | |
| 4491 | /* Ignore an input section with no corresponding output section. */ |
| 4492 | if (isection->output_section == NULL) |
| 4493 | return; |
| 4494 | |
| 4495 | relsize = bfd_get_reloc_upper_bound (ibfd, isection); |
| 4496 | if (relsize < 0) |
| 4497 | { |
| 4498 | /* Do not complain if the target does not support relocations. */ |
| 4499 | if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation) |
| 4500 | return; |
| 4501 | bfd_fatal (bfd_get_filename (ibfd)); |
| 4502 | } |
| 4503 | |
| 4504 | if (relsize == 0) |
| 4505 | return; |
| 4506 | |
| 4507 | relpp = (arelent **) xmalloc (relsize); |
| 4508 | relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols); |
| 4509 | if (relcount < 0) |
| 4510 | bfd_fatal (bfd_get_filename (ibfd)); |
| 4511 | |
| 4512 | /* Examine each symbol used in a relocation. If it's not one of the |
| 4513 | special bfd section symbols, then mark it with BSF_KEEP. */ |
| 4514 | for (i = 0; i < relcount; i++) |
| 4515 | { |
| 4516 | /* See PRs 20923 and 20930 for reproducers for the NULL tests. */ |
| 4517 | if (relpp[i]->sym_ptr_ptr != NULL |
| 4518 | && * relpp[i]->sym_ptr_ptr != NULL |
| 4519 | && *relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol |
| 4520 | && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol |
| 4521 | && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol) |
| 4522 | (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP; |
| 4523 | } |
| 4524 | |
| 4525 | if (relpp != NULL) |
| 4526 | free (relpp); |
| 4527 | } |
| 4528 | |
| 4529 | /* Write out debugging information. */ |
| 4530 | |
| 4531 | static bfd_boolean |
| 4532 | write_debugging_info (bfd *obfd, void *dhandle, |
| 4533 | long *symcountp ATTRIBUTE_UNUSED, |
| 4534 | asymbol ***symppp ATTRIBUTE_UNUSED) |
| 4535 | { |
| 4536 | if (bfd_get_flavour (obfd) == bfd_target_coff_flavour |
| 4537 | || bfd_get_flavour (obfd) == bfd_target_elf_flavour) |
| 4538 | { |
| 4539 | bfd_byte *syms, *strings = NULL; |
| 4540 | bfd_size_type symsize, stringsize; |
| 4541 | asection *stabsec, *stabstrsec; |
| 4542 | flagword flags; |
| 4543 | |
| 4544 | if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms, |
| 4545 | &symsize, &strings, |
| 4546 | &stringsize)) |
| 4547 | return FALSE; |
| 4548 | |
| 4549 | flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DEBUGGING; |
| 4550 | stabsec = bfd_make_section_with_flags (obfd, ".stab", flags); |
| 4551 | stabstrsec = bfd_make_section_with_flags (obfd, ".stabstr", flags); |
| 4552 | if (stabsec == NULL |
| 4553 | || stabstrsec == NULL |
| 4554 | || !bfd_set_section_size (stabsec, symsize) |
| 4555 | || !bfd_set_section_size (stabstrsec, stringsize) |
| 4556 | || !bfd_set_section_alignment (stabsec, 2) |
| 4557 | || !bfd_set_section_alignment (stabstrsec, 0)) |
| 4558 | { |
| 4559 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 4560 | _("can't create debugging section")); |
| 4561 | free (strings); |
| 4562 | return FALSE; |
| 4563 | } |
| 4564 | |
| 4565 | /* We can get away with setting the section contents now because |
| 4566 | the next thing the caller is going to do is copy over the |
| 4567 | real sections. We may someday have to split the contents |
| 4568 | setting out of this function. */ |
| 4569 | if (! bfd_set_section_contents (obfd, stabsec, syms, 0, symsize) |
| 4570 | || ! bfd_set_section_contents (obfd, stabstrsec, strings, 0, |
| 4571 | stringsize)) |
| 4572 | { |
| 4573 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 4574 | _("can't set debugging section contents")); |
| 4575 | free (strings); |
| 4576 | return FALSE; |
| 4577 | } |
| 4578 | |
| 4579 | return TRUE; |
| 4580 | } |
| 4581 | |
| 4582 | bfd_nonfatal_message (NULL, obfd, NULL, |
| 4583 | _("don't know how to write debugging information for %s"), |
| 4584 | bfd_get_target (obfd)); |
| 4585 | return FALSE; |
| 4586 | } |
| 4587 | |
| 4588 | /* If neither -D nor -U was specified explicitly, |
| 4589 | then use the configured default. */ |
| 4590 | static void |
| 4591 | default_deterministic (void) |
| 4592 | { |
| 4593 | if (deterministic < 0) |
| 4594 | deterministic = DEFAULT_AR_DETERMINISTIC; |
| 4595 | } |
| 4596 | |
| 4597 | static int |
| 4598 | strip_main (int argc, char *argv[]) |
| 4599 | { |
| 4600 | char *input_target = NULL; |
| 4601 | char *output_target = NULL; |
| 4602 | bfd_boolean show_version = FALSE; |
| 4603 | bfd_boolean formats_info = FALSE; |
| 4604 | int c; |
| 4605 | int i; |
| 4606 | char *output_file = NULL; |
| 4607 | bfd_boolean merge_notes_set = FALSE; |
| 4608 | |
| 4609 | while ((c = getopt_long (argc, argv, "I:O:F:K:MN:R:o:sSpdgxXHhVvwDU", |
| 4610 | strip_options, (int *) 0)) != EOF) |
| 4611 | { |
| 4612 | switch (c) |
| 4613 | { |
| 4614 | case 'I': |
| 4615 | input_target = optarg; |
| 4616 | break; |
| 4617 | case 'O': |
| 4618 | output_target = optarg; |
| 4619 | break; |
| 4620 | case 'F': |
| 4621 | input_target = output_target = optarg; |
| 4622 | break; |
| 4623 | case 'R': |
| 4624 | handle_remove_section_option (optarg); |
| 4625 | break; |
| 4626 | case OPTION_KEEP_SECTION: |
| 4627 | find_section_list (optarg, TRUE, SECTION_CONTEXT_KEEP); |
| 4628 | break; |
| 4629 | case OPTION_REMOVE_RELOCS: |
| 4630 | handle_remove_relocations_option (optarg); |
| 4631 | break; |
| 4632 | case 's': |
| 4633 | strip_symbols = STRIP_ALL; |
| 4634 | break; |
| 4635 | case 'S': |
| 4636 | case 'g': |
| 4637 | case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */ |
| 4638 | strip_symbols = STRIP_DEBUG; |
| 4639 | break; |
| 4640 | case OPTION_STRIP_DWO: |
| 4641 | strip_symbols = STRIP_DWO; |
| 4642 | break; |
| 4643 | case OPTION_STRIP_UNNEEDED: |
| 4644 | strip_symbols = STRIP_UNNEEDED; |
| 4645 | break; |
| 4646 | case 'K': |
| 4647 | add_specific_symbol (optarg, keep_specific_htab); |
| 4648 | break; |
| 4649 | case 'M': |
| 4650 | merge_notes = TRUE; |
| 4651 | merge_notes_set = TRUE; |
| 4652 | break; |
| 4653 | case OPTION_NO_MERGE_NOTES: |
| 4654 | merge_notes = FALSE; |
| 4655 | merge_notes_set = TRUE; |
| 4656 | break; |
| 4657 | case 'N': |
| 4658 | add_specific_symbol (optarg, strip_specific_htab); |
| 4659 | break; |
| 4660 | case 'o': |
| 4661 | output_file = optarg; |
| 4662 | break; |
| 4663 | case 'p': |
| 4664 | preserve_dates = TRUE; |
| 4665 | break; |
| 4666 | case 'D': |
| 4667 | deterministic = TRUE; |
| 4668 | break; |
| 4669 | case 'U': |
| 4670 | deterministic = FALSE; |
| 4671 | break; |
| 4672 | case 'x': |
| 4673 | discard_locals = LOCALS_ALL; |
| 4674 | break; |
| 4675 | case 'X': |
| 4676 | discard_locals = LOCALS_START_L; |
| 4677 | break; |
| 4678 | case 'v': |
| 4679 | verbose = TRUE; |
| 4680 | break; |
| 4681 | case 'V': |
| 4682 | show_version = TRUE; |
| 4683 | break; |
| 4684 | case OPTION_FORMATS_INFO: |
| 4685 | formats_info = TRUE; |
| 4686 | break; |
| 4687 | case OPTION_ONLY_KEEP_DEBUG: |
| 4688 | strip_symbols = STRIP_NONDEBUG; |
| 4689 | break; |
| 4690 | case OPTION_KEEP_FILE_SYMBOLS: |
| 4691 | keep_file_symbols = 1; |
| 4692 | break; |
| 4693 | case 0: |
| 4694 | /* We've been given a long option. */ |
| 4695 | break; |
| 4696 | case 'w': |
| 4697 | wildcard = TRUE; |
| 4698 | break; |
| 4699 | case 'H': |
| 4700 | case 'h': |
| 4701 | strip_usage (stdout, 0); |
| 4702 | default: |
| 4703 | strip_usage (stderr, 1); |
| 4704 | } |
| 4705 | } |
| 4706 | |
| 4707 | /* If the user has not expressly chosen to merge/not-merge ELF notes |
| 4708 | then enable the merging unless we are stripping debug or dwo info. */ |
| 4709 | if (! merge_notes_set |
| 4710 | && (strip_symbols == STRIP_UNDEF |
| 4711 | || strip_symbols == STRIP_ALL |
| 4712 | || strip_symbols == STRIP_UNNEEDED |
| 4713 | || strip_symbols == STRIP_NONDEBUG |
| 4714 | || strip_symbols == STRIP_NONDWO)) |
| 4715 | merge_notes = TRUE; |
| 4716 | |
| 4717 | if (formats_info) |
| 4718 | { |
| 4719 | display_info (); |
| 4720 | return 0; |
| 4721 | } |
| 4722 | |
| 4723 | if (show_version) |
| 4724 | print_version ("strip"); |
| 4725 | |
| 4726 | default_deterministic (); |
| 4727 | |
| 4728 | /* Default is to strip all symbols. */ |
| 4729 | if (strip_symbols == STRIP_UNDEF |
| 4730 | && discard_locals == LOCALS_UNDEF |
| 4731 | && htab_elements (strip_specific_htab) == 0) |
| 4732 | strip_symbols = STRIP_ALL; |
| 4733 | |
| 4734 | if (output_target == NULL) |
| 4735 | output_target = input_target; |
| 4736 | |
| 4737 | i = optind; |
| 4738 | if (i == argc |
| 4739 | || (output_file != NULL && (i + 1) < argc)) |
| 4740 | strip_usage (stderr, 1); |
| 4741 | |
| 4742 | for (; i < argc; i++) |
| 4743 | { |
| 4744 | int hold_status = status; |
| 4745 | struct stat statbuf; |
| 4746 | char *tmpname; |
| 4747 | |
| 4748 | if (get_file_size (argv[i]) < 1) |
| 4749 | { |
| 4750 | status = 1; |
| 4751 | continue; |
| 4752 | } |
| 4753 | |
| 4754 | if (preserve_dates) |
| 4755 | /* No need to check the return value of stat(). |
| 4756 | It has already been checked in get_file_size(). */ |
| 4757 | stat (argv[i], &statbuf); |
| 4758 | |
| 4759 | if (output_file == NULL |
| 4760 | || filename_cmp (argv[i], output_file) == 0) |
| 4761 | tmpname = make_tempname (argv[i]); |
| 4762 | else |
| 4763 | tmpname = output_file; |
| 4764 | |
| 4765 | if (tmpname == NULL) |
| 4766 | { |
| 4767 | bfd_nonfatal_message (argv[i], NULL, NULL, |
| 4768 | _("could not create temporary file to hold stripped copy")); |
| 4769 | status = 1; |
| 4770 | continue; |
| 4771 | } |
| 4772 | |
| 4773 | status = 0; |
| 4774 | copy_file (argv[i], tmpname, input_target, output_target, NULL); |
| 4775 | if (status == 0) |
| 4776 | { |
| 4777 | if (preserve_dates) |
| 4778 | set_times (tmpname, &statbuf); |
| 4779 | if (output_file != tmpname) |
| 4780 | status = (smart_rename (tmpname, |
| 4781 | output_file ? output_file : argv[i], |
| 4782 | preserve_dates) != 0); |
| 4783 | if (status == 0) |
| 4784 | status = hold_status; |
| 4785 | } |
| 4786 | else |
| 4787 | unlink_if_ordinary (tmpname); |
| 4788 | if (output_file != tmpname) |
| 4789 | free (tmpname); |
| 4790 | } |
| 4791 | |
| 4792 | return status; |
| 4793 | } |
| 4794 | |
| 4795 | /* Set up PE subsystem. */ |
| 4796 | |
| 4797 | static void |
| 4798 | set_pe_subsystem (const char *s) |
| 4799 | { |
| 4800 | const char *version, *subsystem; |
| 4801 | size_t i; |
| 4802 | static const struct |
| 4803 | { |
| 4804 | const char *name; |
| 4805 | const char set_def; |
| 4806 | const short value; |
| 4807 | } |
| 4808 | v[] = |
| 4809 | { |
| 4810 | { "native", 0, IMAGE_SUBSYSTEM_NATIVE }, |
| 4811 | { "windows", 0, IMAGE_SUBSYSTEM_WINDOWS_GUI }, |
| 4812 | { "console", 0, IMAGE_SUBSYSTEM_WINDOWS_CUI }, |
| 4813 | { "posix", 0, IMAGE_SUBSYSTEM_POSIX_CUI }, |
| 4814 | { "wince", 0, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI }, |
| 4815 | { "efi-app", 1, IMAGE_SUBSYSTEM_EFI_APPLICATION }, |
| 4816 | { "efi-bsd", 1, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER }, |
| 4817 | { "efi-rtd", 1, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER }, |
| 4818 | { "sal-rtd", 1, IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER }, |
| 4819 | { "xbox", 0, IMAGE_SUBSYSTEM_XBOX } |
| 4820 | }; |
| 4821 | short value; |
| 4822 | char *copy; |
| 4823 | int set_def = -1; |
| 4824 | |
| 4825 | /* Check for the presence of a version number. */ |
| 4826 | version = strchr (s, ':'); |
| 4827 | if (version == NULL) |
| 4828 | subsystem = s; |
| 4829 | else |
| 4830 | { |
| 4831 | int len = version - s; |
| 4832 | copy = xstrdup (s); |
| 4833 | subsystem = copy; |
| 4834 | copy[len] = '\0'; |
| 4835 | version = copy + 1 + len; |
| 4836 | pe_major_subsystem_version = strtoul (version, ©, 0); |
| 4837 | if (*copy == '.') |
| 4838 | pe_minor_subsystem_version = strtoul (copy + 1, ©, 0); |
| 4839 | if (*copy != '\0') |
| 4840 | non_fatal (_("%s: bad version in PE subsystem"), s); |
| 4841 | } |
| 4842 | |
| 4843 | /* Check for numeric subsystem. */ |
| 4844 | value = (short) strtol (subsystem, ©, 0); |
| 4845 | if (*copy == '\0') |
| 4846 | { |
| 4847 | for (i = 0; i < ARRAY_SIZE (v); i++) |
| 4848 | if (v[i].value == value) |
| 4849 | { |
| 4850 | pe_subsystem = value; |
| 4851 | set_def = v[i].set_def; |
| 4852 | break; |
| 4853 | } |
| 4854 | } |
| 4855 | else |
| 4856 | { |
| 4857 | /* Search for subsystem by name. */ |
| 4858 | for (i = 0; i < ARRAY_SIZE (v); i++) |
| 4859 | if (strcmp (subsystem, v[i].name) == 0) |
| 4860 | { |
| 4861 | pe_subsystem = v[i].value; |
| 4862 | set_def = v[i].set_def; |
| 4863 | break; |
| 4864 | } |
| 4865 | } |
| 4866 | |
| 4867 | switch (set_def) |
| 4868 | { |
| 4869 | case -1: |
| 4870 | fatal (_("unknown PE subsystem: %s"), s); |
| 4871 | break; |
| 4872 | case 0: |
| 4873 | break; |
| 4874 | default: |
| 4875 | if (pe_file_alignment == (bfd_vma) -1) |
| 4876 | pe_file_alignment = PE_DEF_FILE_ALIGNMENT; |
| 4877 | if (pe_section_alignment == (bfd_vma) -1) |
| 4878 | pe_section_alignment = PE_DEF_SECTION_ALIGNMENT; |
| 4879 | break; |
| 4880 | } |
| 4881 | if (s != subsystem) |
| 4882 | free ((char *) subsystem); |
| 4883 | } |
| 4884 | |
| 4885 | /* Convert EFI target to PEI target. */ |
| 4886 | |
| 4887 | static void |
| 4888 | convert_efi_target (char *efi) |
| 4889 | { |
| 4890 | efi[0] = 'p'; |
| 4891 | efi[1] = 'e'; |
| 4892 | efi[2] = 'i'; |
| 4893 | |
| 4894 | if (strcmp (efi + 4, "ia32") == 0) |
| 4895 | { |
| 4896 | /* Change ia32 to i386. */ |
| 4897 | efi[5]= '3'; |
| 4898 | efi[6]= '8'; |
| 4899 | efi[7]= '6'; |
| 4900 | } |
| 4901 | else if (strcmp (efi + 4, "x86_64") == 0) |
| 4902 | { |
| 4903 | /* Change x86_64 to x86-64. */ |
| 4904 | efi[7] = '-'; |
| 4905 | } |
| 4906 | } |
| 4907 | |
| 4908 | /* Allocate and return a pointer to a struct section_add, initializing the |
| 4909 | structure using ARG, a string in the format "sectionname=filename". |
| 4910 | The returned structure will have its next pointer set to NEXT. The |
| 4911 | OPTION field is the name of the command line option currently being |
| 4912 | parsed, and is only used if an error needs to be reported. */ |
| 4913 | |
| 4914 | static struct section_add * |
| 4915 | init_section_add (const char *arg, |
| 4916 | struct section_add *next, |
| 4917 | const char *option) |
| 4918 | { |
| 4919 | struct section_add *pa; |
| 4920 | const char *s; |
| 4921 | |
| 4922 | s = strchr (arg, '='); |
| 4923 | if (s == NULL) |
| 4924 | fatal (_("bad format for %s"), option); |
| 4925 | |
| 4926 | pa = (struct section_add *) xmalloc (sizeof (struct section_add)); |
| 4927 | pa->name = xstrndup (arg, s - arg); |
| 4928 | pa->filename = s + 1; |
| 4929 | pa->next = next; |
| 4930 | pa->contents = NULL; |
| 4931 | pa->size = 0; |
| 4932 | |
| 4933 | return pa; |
| 4934 | } |
| 4935 | |
| 4936 | /* Load the file specified in PA, allocating memory to hold the file |
| 4937 | contents, and store a pointer to the allocated memory in the contents |
| 4938 | field of PA. The size field of PA is also updated. All errors call |
| 4939 | FATAL. */ |
| 4940 | |
| 4941 | static void |
| 4942 | section_add_load_file (struct section_add *pa) |
| 4943 | { |
| 4944 | size_t off, alloc; |
| 4945 | FILE *f; |
| 4946 | |
| 4947 | /* We don't use get_file_size so that we can do |
| 4948 | --add-section .note.GNU_stack=/dev/null |
| 4949 | get_file_size doesn't work on /dev/null. */ |
| 4950 | |
| 4951 | f = fopen (pa->filename, FOPEN_RB); |
| 4952 | if (f == NULL) |
| 4953 | fatal (_("cannot open: %s: %s"), |
| 4954 | pa->filename, strerror (errno)); |
| 4955 | |
| 4956 | off = 0; |
| 4957 | alloc = 4096; |
| 4958 | pa->contents = (bfd_byte *) xmalloc (alloc); |
| 4959 | while (!feof (f)) |
| 4960 | { |
| 4961 | off_t got; |
| 4962 | |
| 4963 | if (off == alloc) |
| 4964 | { |
| 4965 | alloc <<= 1; |
| 4966 | pa->contents = (bfd_byte *) xrealloc (pa->contents, alloc); |
| 4967 | } |
| 4968 | |
| 4969 | got = fread (pa->contents + off, 1, alloc - off, f); |
| 4970 | if (ferror (f)) |
| 4971 | fatal (_("%s: fread failed"), pa->filename); |
| 4972 | |
| 4973 | off += got; |
| 4974 | } |
| 4975 | |
| 4976 | pa->size = off; |
| 4977 | |
| 4978 | fclose (f); |
| 4979 | } |
| 4980 | |
| 4981 | static int |
| 4982 | copy_main (int argc, char *argv[]) |
| 4983 | { |
| 4984 | char *input_filename = NULL; |
| 4985 | char *output_filename = NULL; |
| 4986 | char *tmpname; |
| 4987 | char *input_target = NULL; |
| 4988 | char *output_target = NULL; |
| 4989 | bfd_boolean show_version = FALSE; |
| 4990 | bfd_boolean change_warn = TRUE; |
| 4991 | bfd_boolean formats_info = FALSE; |
| 4992 | bfd_boolean use_globalize = FALSE; |
| 4993 | bfd_boolean use_keep_global = FALSE; |
| 4994 | int c; |
| 4995 | struct stat statbuf; |
| 4996 | const bfd_arch_info_type *input_arch = NULL; |
| 4997 | |
| 4998 | while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:MN:s:O:d:F:L:G:R:SpgxXHhVvW:wDU", |
| 4999 | copy_options, (int *) 0)) != EOF) |
| 5000 | { |
| 5001 | switch (c) |
| 5002 | { |
| 5003 | case 'b': |
| 5004 | copy_byte = atoi (optarg); |
| 5005 | if (copy_byte < 0) |
| 5006 | fatal (_("byte number must be non-negative")); |
| 5007 | break; |
| 5008 | |
| 5009 | case 'B': |
| 5010 | input_arch = bfd_scan_arch (optarg); |
| 5011 | if (input_arch == NULL) |
| 5012 | fatal (_("architecture %s unknown"), optarg); |
| 5013 | break; |
| 5014 | |
| 5015 | case 'i': |
| 5016 | if (optarg) |
| 5017 | { |
| 5018 | interleave = atoi (optarg); |
| 5019 | if (interleave < 1) |
| 5020 | fatal (_("interleave must be positive")); |
| 5021 | } |
| 5022 | else |
| 5023 | interleave = 4; |
| 5024 | break; |
| 5025 | |
| 5026 | case OPTION_INTERLEAVE_WIDTH: |
| 5027 | copy_width = atoi (optarg); |
| 5028 | if (copy_width < 1) |
| 5029 | fatal(_("interleave width must be positive")); |
| 5030 | break; |
| 5031 | |
| 5032 | case 'I': |
| 5033 | case 's': /* "source" - 'I' is preferred */ |
| 5034 | input_target = optarg; |
| 5035 | break; |
| 5036 | |
| 5037 | case 'O': |
| 5038 | case 'd': /* "destination" - 'O' is preferred */ |
| 5039 | output_target = optarg; |
| 5040 | break; |
| 5041 | |
| 5042 | case 'F': |
| 5043 | input_target = output_target = optarg; |
| 5044 | break; |
| 5045 | |
| 5046 | case 'j': |
| 5047 | find_section_list (optarg, TRUE, SECTION_CONTEXT_COPY); |
| 5048 | sections_copied = TRUE; |
| 5049 | break; |
| 5050 | |
| 5051 | case 'R': |
| 5052 | handle_remove_section_option (optarg); |
| 5053 | break; |
| 5054 | |
| 5055 | case OPTION_KEEP_SECTION: |
| 5056 | find_section_list (optarg, TRUE, SECTION_CONTEXT_KEEP); |
| 5057 | break; |
| 5058 | |
| 5059 | case OPTION_REMOVE_RELOCS: |
| 5060 | handle_remove_relocations_option (optarg); |
| 5061 | break; |
| 5062 | |
| 5063 | case 'S': |
| 5064 | strip_symbols = STRIP_ALL; |
| 5065 | break; |
| 5066 | |
| 5067 | case 'g': |
| 5068 | strip_symbols = STRIP_DEBUG; |
| 5069 | break; |
| 5070 | |
| 5071 | case OPTION_STRIP_DWO: |
| 5072 | strip_symbols = STRIP_DWO; |
| 5073 | break; |
| 5074 | |
| 5075 | case OPTION_STRIP_UNNEEDED: |
| 5076 | strip_symbols = STRIP_UNNEEDED; |
| 5077 | break; |
| 5078 | |
| 5079 | case OPTION_ONLY_KEEP_DEBUG: |
| 5080 | strip_symbols = STRIP_NONDEBUG; |
| 5081 | break; |
| 5082 | |
| 5083 | case OPTION_KEEP_FILE_SYMBOLS: |
| 5084 | keep_file_symbols = 1; |
| 5085 | break; |
| 5086 | |
| 5087 | case OPTION_ADD_GNU_DEBUGLINK: |
| 5088 | long_section_names = ENABLE ; |
| 5089 | gnu_debuglink_filename = optarg; |
| 5090 | break; |
| 5091 | |
| 5092 | case 'K': |
| 5093 | add_specific_symbol (optarg, keep_specific_htab); |
| 5094 | break; |
| 5095 | |
| 5096 | case 'M': |
| 5097 | merge_notes = TRUE; |
| 5098 | break; |
| 5099 | case OPTION_NO_MERGE_NOTES: |
| 5100 | merge_notes = FALSE; |
| 5101 | break; |
| 5102 | |
| 5103 | case 'N': |
| 5104 | add_specific_symbol (optarg, strip_specific_htab); |
| 5105 | break; |
| 5106 | |
| 5107 | case OPTION_STRIP_UNNEEDED_SYMBOL: |
| 5108 | add_specific_symbol (optarg, strip_unneeded_htab); |
| 5109 | break; |
| 5110 | |
| 5111 | case 'L': |
| 5112 | add_specific_symbol (optarg, localize_specific_htab); |
| 5113 | break; |
| 5114 | |
| 5115 | case OPTION_GLOBALIZE_SYMBOL: |
| 5116 | use_globalize = TRUE; |
| 5117 | add_specific_symbol (optarg, globalize_specific_htab); |
| 5118 | break; |
| 5119 | |
| 5120 | case 'G': |
| 5121 | use_keep_global = TRUE; |
| 5122 | add_specific_symbol (optarg, keepglobal_specific_htab); |
| 5123 | break; |
| 5124 | |
| 5125 | case 'W': |
| 5126 | add_specific_symbol (optarg, weaken_specific_htab); |
| 5127 | break; |
| 5128 | |
| 5129 | case 'p': |
| 5130 | preserve_dates = TRUE; |
| 5131 | break; |
| 5132 | |
| 5133 | case 'D': |
| 5134 | deterministic = TRUE; |
| 5135 | break; |
| 5136 | |
| 5137 | case 'U': |
| 5138 | deterministic = FALSE; |
| 5139 | break; |
| 5140 | |
| 5141 | case 'w': |
| 5142 | wildcard = TRUE; |
| 5143 | break; |
| 5144 | |
| 5145 | case 'x': |
| 5146 | discard_locals = LOCALS_ALL; |
| 5147 | break; |
| 5148 | |
| 5149 | case 'X': |
| 5150 | discard_locals = LOCALS_START_L; |
| 5151 | break; |
| 5152 | |
| 5153 | case 'v': |
| 5154 | verbose = TRUE; |
| 5155 | break; |
| 5156 | |
| 5157 | case 'V': |
| 5158 | show_version = TRUE; |
| 5159 | break; |
| 5160 | |
| 5161 | case OPTION_FORMATS_INFO: |
| 5162 | formats_info = TRUE; |
| 5163 | break; |
| 5164 | |
| 5165 | case OPTION_WEAKEN: |
| 5166 | weaken = TRUE; |
| 5167 | break; |
| 5168 | |
| 5169 | case OPTION_ADD_SECTION: |
| 5170 | add_sections = init_section_add (optarg, add_sections, |
| 5171 | "--add-section"); |
| 5172 | section_add_load_file (add_sections); |
| 5173 | break; |
| 5174 | |
| 5175 | case OPTION_UPDATE_SECTION: |
| 5176 | update_sections = init_section_add (optarg, update_sections, |
| 5177 | "--update-section"); |
| 5178 | section_add_load_file (update_sections); |
| 5179 | break; |
| 5180 | |
| 5181 | case OPTION_DUMP_SECTION: |
| 5182 | dump_sections = init_section_add (optarg, dump_sections, |
| 5183 | "--dump-section"); |
| 5184 | break; |
| 5185 | |
| 5186 | case OPTION_ADD_SYMBOL: |
| 5187 | { |
| 5188 | char *s, *t; |
| 5189 | struct addsym_node *newsym = xmalloc (sizeof *newsym); |
| 5190 | |
| 5191 | newsym->next = NULL; |
| 5192 | s = strchr (optarg, '='); |
| 5193 | if (s == NULL) |
| 5194 | fatal (_("bad format for %s"), "--add-symbol"); |
| 5195 | t = strchr (s + 1, ':'); |
| 5196 | |
| 5197 | newsym->symdef = xstrndup (optarg, s - optarg); |
| 5198 | if (t) |
| 5199 | { |
| 5200 | newsym->section = xstrndup (s + 1, t - (s + 1)); |
| 5201 | newsym->symval = strtol (t + 1, NULL, 0); |
| 5202 | } |
| 5203 | else |
| 5204 | { |
| 5205 | newsym->section = NULL; |
| 5206 | newsym->symval = strtol (s + 1, NULL, 0); |
| 5207 | t = s; |
| 5208 | } |
| 5209 | |
| 5210 | t = strchr (t + 1, ','); |
| 5211 | newsym->othersym = NULL; |
| 5212 | if (t) |
| 5213 | newsym->flags = parse_symflags (t+1, &newsym->othersym); |
| 5214 | else |
| 5215 | newsym->flags = BSF_GLOBAL; |
| 5216 | |
| 5217 | /* Keep 'othersym' symbols at the front of the list. */ |
| 5218 | if (newsym->othersym) |
| 5219 | { |
| 5220 | newsym->next = add_sym_list; |
| 5221 | if (!add_sym_list) |
| 5222 | add_sym_tail = &newsym->next; |
| 5223 | add_sym_list = newsym; |
| 5224 | } |
| 5225 | else |
| 5226 | { |
| 5227 | *add_sym_tail = newsym; |
| 5228 | add_sym_tail = &newsym->next; |
| 5229 | } |
| 5230 | add_symbols++; |
| 5231 | } |
| 5232 | break; |
| 5233 | |
| 5234 | case OPTION_CHANGE_START: |
| 5235 | change_start = parse_vma (optarg, "--change-start"); |
| 5236 | break; |
| 5237 | |
| 5238 | case OPTION_CHANGE_SECTION_ADDRESS: |
| 5239 | case OPTION_CHANGE_SECTION_LMA: |
| 5240 | case OPTION_CHANGE_SECTION_VMA: |
| 5241 | { |
| 5242 | struct section_list * p; |
| 5243 | unsigned int context = 0; |
| 5244 | const char *s; |
| 5245 | int len; |
| 5246 | char *name; |
| 5247 | char *option = NULL; |
| 5248 | bfd_vma val; |
| 5249 | |
| 5250 | switch (c) |
| 5251 | { |
| 5252 | case OPTION_CHANGE_SECTION_ADDRESS: |
| 5253 | option = "--change-section-address"; |
| 5254 | context = SECTION_CONTEXT_ALTER_LMA | SECTION_CONTEXT_ALTER_VMA; |
| 5255 | break; |
| 5256 | case OPTION_CHANGE_SECTION_LMA: |
| 5257 | option = "--change-section-lma"; |
| 5258 | context = SECTION_CONTEXT_ALTER_LMA; |
| 5259 | break; |
| 5260 | case OPTION_CHANGE_SECTION_VMA: |
| 5261 | option = "--change-section-vma"; |
| 5262 | context = SECTION_CONTEXT_ALTER_VMA; |
| 5263 | break; |
| 5264 | } |
| 5265 | |
| 5266 | s = strchr (optarg, '='); |
| 5267 | if (s == NULL) |
| 5268 | { |
| 5269 | s = strchr (optarg, '+'); |
| 5270 | if (s == NULL) |
| 5271 | { |
| 5272 | s = strchr (optarg, '-'); |
| 5273 | if (s == NULL) |
| 5274 | fatal (_("bad format for %s"), option); |
| 5275 | } |
| 5276 | } |
| 5277 | else |
| 5278 | { |
| 5279 | /* Correct the context. */ |
| 5280 | switch (c) |
| 5281 | { |
| 5282 | case OPTION_CHANGE_SECTION_ADDRESS: |
| 5283 | context = SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_SET_VMA; |
| 5284 | break; |
| 5285 | case OPTION_CHANGE_SECTION_LMA: |
| 5286 | context = SECTION_CONTEXT_SET_LMA; |
| 5287 | break; |
| 5288 | case OPTION_CHANGE_SECTION_VMA: |
| 5289 | context = SECTION_CONTEXT_SET_VMA; |
| 5290 | break; |
| 5291 | } |
| 5292 | } |
| 5293 | |
| 5294 | len = s - optarg; |
| 5295 | name = (char *) xmalloc (len + 1); |
| 5296 | strncpy (name, optarg, len); |
| 5297 | name[len] = '\0'; |
| 5298 | |
| 5299 | p = find_section_list (name, TRUE, context); |
| 5300 | |
| 5301 | val = parse_vma (s + 1, option); |
| 5302 | if (*s == '-') |
| 5303 | val = - val; |
| 5304 | |
| 5305 | switch (c) |
| 5306 | { |
| 5307 | case OPTION_CHANGE_SECTION_ADDRESS: |
| 5308 | p->vma_val = val; |
| 5309 | /* Fall through. */ |
| 5310 | |
| 5311 | case OPTION_CHANGE_SECTION_LMA: |
| 5312 | p->lma_val = val; |
| 5313 | break; |
| 5314 | |
| 5315 | case OPTION_CHANGE_SECTION_VMA: |
| 5316 | p->vma_val = val; |
| 5317 | break; |
| 5318 | } |
| 5319 | } |
| 5320 | break; |
| 5321 | |
| 5322 | case OPTION_CHANGE_ADDRESSES: |
| 5323 | change_section_address = parse_vma (optarg, "--change-addresses"); |
| 5324 | change_start = change_section_address; |
| 5325 | break; |
| 5326 | |
| 5327 | case OPTION_CHANGE_WARNINGS: |
| 5328 | change_warn = TRUE; |
| 5329 | break; |
| 5330 | |
| 5331 | case OPTION_CHANGE_LEADING_CHAR: |
| 5332 | change_leading_char = TRUE; |
| 5333 | break; |
| 5334 | |
| 5335 | case OPTION_COMPRESS_DEBUG_SECTIONS: |
| 5336 | if (optarg) |
| 5337 | { |
| 5338 | if (strcasecmp (optarg, "none") == 0) |
| 5339 | do_debug_sections = decompress; |
| 5340 | else if (strcasecmp (optarg, "zlib") == 0) |
| 5341 | do_debug_sections = compress_zlib; |
| 5342 | else if (strcasecmp (optarg, "zlib-gnu") == 0) |
| 5343 | do_debug_sections = compress_gnu_zlib; |
| 5344 | else if (strcasecmp (optarg, "zlib-gabi") == 0) |
| 5345 | do_debug_sections = compress_gabi_zlib; |
| 5346 | else |
| 5347 | fatal (_("unrecognized --compress-debug-sections type `%s'"), |
| 5348 | optarg); |
| 5349 | } |
| 5350 | else |
| 5351 | do_debug_sections = compress; |
| 5352 | break; |
| 5353 | |
| 5354 | case OPTION_DEBUGGING: |
| 5355 | convert_debugging = TRUE; |
| 5356 | break; |
| 5357 | |
| 5358 | case OPTION_DECOMPRESS_DEBUG_SECTIONS: |
| 5359 | do_debug_sections = decompress; |
| 5360 | break; |
| 5361 | |
| 5362 | case OPTION_ELF_STT_COMMON: |
| 5363 | if (strcasecmp (optarg, "yes") == 0) |
| 5364 | do_elf_stt_common = elf_stt_common; |
| 5365 | else if (strcasecmp (optarg, "no") == 0) |
| 5366 | do_elf_stt_common = no_elf_stt_common; |
| 5367 | else |
| 5368 | fatal (_("unrecognized --elf-stt-common= option `%s'"), |
| 5369 | optarg); |
| 5370 | break; |
| 5371 | |
| 5372 | case OPTION_GAP_FILL: |
| 5373 | { |
| 5374 | bfd_vma gap_fill_vma; |
| 5375 | |
| 5376 | gap_fill_vma = parse_vma (optarg, "--gap-fill"); |
| 5377 | gap_fill = (bfd_byte) gap_fill_vma; |
| 5378 | if ((bfd_vma) gap_fill != gap_fill_vma) |
| 5379 | { |
| 5380 | char buff[20]; |
| 5381 | |
| 5382 | sprintf_vma (buff, gap_fill_vma); |
| 5383 | |
| 5384 | non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"), |
| 5385 | buff, gap_fill); |
| 5386 | } |
| 5387 | gap_fill_set = TRUE; |
| 5388 | } |
| 5389 | break; |
| 5390 | |
| 5391 | case OPTION_NO_CHANGE_WARNINGS: |
| 5392 | change_warn = FALSE; |
| 5393 | break; |
| 5394 | |
| 5395 | case OPTION_PAD_TO: |
| 5396 | pad_to = parse_vma (optarg, "--pad-to"); |
| 5397 | pad_to_set = TRUE; |
| 5398 | break; |
| 5399 | |
| 5400 | case OPTION_REMOVE_LEADING_CHAR: |
| 5401 | remove_leading_char = TRUE; |
| 5402 | break; |
| 5403 | |
| 5404 | case OPTION_REDEFINE_SYM: |
| 5405 | { |
| 5406 | /* Insert this redefinition onto redefine_specific_htab. */ |
| 5407 | |
| 5408 | int len; |
| 5409 | const char *s; |
| 5410 | const char *nextarg; |
| 5411 | char *source, *target; |
| 5412 | |
| 5413 | s = strchr (optarg, '='); |
| 5414 | if (s == NULL) |
| 5415 | fatal (_("bad format for %s"), "--redefine-sym"); |
| 5416 | |
| 5417 | len = s - optarg; |
| 5418 | source = (char *) xmalloc (len + 1); |
| 5419 | strncpy (source, optarg, len); |
| 5420 | source[len] = '\0'; |
| 5421 | |
| 5422 | nextarg = s + 1; |
| 5423 | len = strlen (nextarg); |
| 5424 | target = (char *) xmalloc (len + 1); |
| 5425 | strcpy (target, nextarg); |
| 5426 | |
| 5427 | add_redefine_and_check ("--redefine-sym", source, target); |
| 5428 | |
| 5429 | free (source); |
| 5430 | free (target); |
| 5431 | } |
| 5432 | break; |
| 5433 | |
| 5434 | case OPTION_REDEFINE_SYMS: |
| 5435 | add_redefine_syms_file (optarg); |
| 5436 | break; |
| 5437 | |
| 5438 | case OPTION_SET_SECTION_FLAGS: |
| 5439 | { |
| 5440 | struct section_list *p; |
| 5441 | const char *s; |
| 5442 | int len; |
| 5443 | char *name; |
| 5444 | |
| 5445 | s = strchr (optarg, '='); |
| 5446 | if (s == NULL) |
| 5447 | fatal (_("bad format for %s"), "--set-section-flags"); |
| 5448 | |
| 5449 | len = s - optarg; |
| 5450 | name = (char *) xmalloc (len + 1); |
| 5451 | strncpy (name, optarg, len); |
| 5452 | name[len] = '\0'; |
| 5453 | |
| 5454 | p = find_section_list (name, TRUE, SECTION_CONTEXT_SET_FLAGS); |
| 5455 | |
| 5456 | p->flags = parse_flags (s + 1); |
| 5457 | } |
| 5458 | break; |
| 5459 | |
| 5460 | case OPTION_SET_SECTION_ALIGNMENT: |
| 5461 | { |
| 5462 | struct section_list *p; |
| 5463 | const char *s; |
| 5464 | int len; |
| 5465 | char *name; |
| 5466 | int palign, align; |
| 5467 | |
| 5468 | s = strchr (optarg, '='); |
| 5469 | if (s == NULL) |
| 5470 | fatal (_("bad format for --set-section-alignment: argument needed")); |
| 5471 | |
| 5472 | align = atoi (s + 1); |
| 5473 | if (align <= 0) |
| 5474 | fatal (_("bad format for --set-section-alignment: numeric argument needed")); |
| 5475 | |
| 5476 | /* Convert integer alignment into a power-of-two alignment. */ |
| 5477 | palign = 0; |
| 5478 | while ((align & 1) == 0) |
| 5479 | { |
| 5480 | align >>= 1; |
| 5481 | ++palign; |
| 5482 | } |
| 5483 | |
| 5484 | if (align != 1) |
| 5485 | /* Number has more than on 1, i.e. wasn't a power of 2. */ |
| 5486 | fatal (_("bad format for --set-section-alignment: alignment is not a power of two")); |
| 5487 | |
| 5488 | /* Add the alignment setting to the section list. */ |
| 5489 | len = s - optarg; |
| 5490 | name = (char *) xmalloc (len + 1); |
| 5491 | strncpy (name, optarg, len); |
| 5492 | name[len] = '\0'; |
| 5493 | |
| 5494 | p = find_section_list (name, TRUE, SECTION_CONTEXT_SET_ALIGNMENT); |
| 5495 | if (p) |
| 5496 | p->alignment = palign; |
| 5497 | } |
| 5498 | break; |
| 5499 | |
| 5500 | case OPTION_RENAME_SECTION: |
| 5501 | { |
| 5502 | flagword flags; |
| 5503 | const char *eq, *fl; |
| 5504 | char *old_name; |
| 5505 | char *new_name; |
| 5506 | unsigned int len; |
| 5507 | |
| 5508 | eq = strchr (optarg, '='); |
| 5509 | if (eq == NULL) |
| 5510 | fatal (_("bad format for %s"), "--rename-section"); |
| 5511 | |
| 5512 | len = eq - optarg; |
| 5513 | if (len == 0) |
| 5514 | fatal (_("bad format for %s"), "--rename-section"); |
| 5515 | |
| 5516 | old_name = (char *) xmalloc (len + 1); |
| 5517 | strncpy (old_name, optarg, len); |
| 5518 | old_name[len] = 0; |
| 5519 | |
| 5520 | eq++; |
| 5521 | fl = strchr (eq, ','); |
| 5522 | if (fl) |
| 5523 | { |
| 5524 | flags = parse_flags (fl + 1); |
| 5525 | len = fl - eq; |
| 5526 | } |
| 5527 | else |
| 5528 | { |
| 5529 | flags = -1; |
| 5530 | len = strlen (eq); |
| 5531 | } |
| 5532 | |
| 5533 | if (len == 0) |
| 5534 | fatal (_("bad format for %s"), "--rename-section"); |
| 5535 | |
| 5536 | new_name = (char *) xmalloc (len + 1); |
| 5537 | strncpy (new_name, eq, len); |
| 5538 | new_name[len] = 0; |
| 5539 | |
| 5540 | add_section_rename (old_name, new_name, flags); |
| 5541 | } |
| 5542 | break; |
| 5543 | |
| 5544 | case OPTION_SET_START: |
| 5545 | set_start = parse_vma (optarg, "--set-start"); |
| 5546 | set_start_set = TRUE; |
| 5547 | break; |
| 5548 | |
| 5549 | case OPTION_SREC_LEN: |
| 5550 | _bfd_srec_len = parse_vma (optarg, "--srec-len"); |
| 5551 | break; |
| 5552 | |
| 5553 | case OPTION_SREC_FORCES3: |
| 5554 | _bfd_srec_forceS3 = TRUE; |
| 5555 | break; |
| 5556 | |
| 5557 | case OPTION_STRIP_SYMBOLS: |
| 5558 | add_specific_symbols (optarg, strip_specific_htab, |
| 5559 | &strip_specific_buffer); |
| 5560 | break; |
| 5561 | |
| 5562 | case OPTION_STRIP_UNNEEDED_SYMBOLS: |
| 5563 | add_specific_symbols (optarg, strip_unneeded_htab, |
| 5564 | &strip_unneeded_buffer); |
| 5565 | break; |
| 5566 | |
| 5567 | case OPTION_KEEP_SYMBOLS: |
| 5568 | add_specific_symbols (optarg, keep_specific_htab, |
| 5569 | &keep_specific_buffer); |
| 5570 | break; |
| 5571 | |
| 5572 | case OPTION_LOCALIZE_HIDDEN: |
| 5573 | localize_hidden = TRUE; |
| 5574 | break; |
| 5575 | |
| 5576 | case OPTION_LOCALIZE_SYMBOLS: |
| 5577 | add_specific_symbols (optarg, localize_specific_htab, |
| 5578 | &localize_specific_buffer); |
| 5579 | break; |
| 5580 | |
| 5581 | case OPTION_LONG_SECTION_NAMES: |
| 5582 | if (!strcmp ("enable", optarg)) |
| 5583 | long_section_names = ENABLE; |
| 5584 | else if (!strcmp ("disable", optarg)) |
| 5585 | long_section_names = DISABLE; |
| 5586 | else if (!strcmp ("keep", optarg)) |
| 5587 | long_section_names = KEEP; |
| 5588 | else |
| 5589 | fatal (_("unknown long section names option '%s'"), optarg); |
| 5590 | break; |
| 5591 | |
| 5592 | case OPTION_GLOBALIZE_SYMBOLS: |
| 5593 | use_globalize = TRUE; |
| 5594 | add_specific_symbols (optarg, globalize_specific_htab, |
| 5595 | &globalize_specific_buffer); |
| 5596 | break; |
| 5597 | |
| 5598 | case OPTION_KEEPGLOBAL_SYMBOLS: |
| 5599 | use_keep_global = TRUE; |
| 5600 | add_specific_symbols (optarg, keepglobal_specific_htab, |
| 5601 | &keepglobal_specific_buffer); |
| 5602 | break; |
| 5603 | |
| 5604 | case OPTION_WEAKEN_SYMBOLS: |
| 5605 | add_specific_symbols (optarg, weaken_specific_htab, |
| 5606 | &weaken_specific_buffer); |
| 5607 | break; |
| 5608 | |
| 5609 | case OPTION_ALT_MACH_CODE: |
| 5610 | use_alt_mach_code = strtoul (optarg, NULL, 0); |
| 5611 | if (use_alt_mach_code == 0) |
| 5612 | fatal (_("unable to parse alternative machine code")); |
| 5613 | break; |
| 5614 | |
| 5615 | case OPTION_PREFIX_SYMBOLS: |
| 5616 | prefix_symbols_string = optarg; |
| 5617 | break; |
| 5618 | |
| 5619 | case OPTION_PREFIX_SECTIONS: |
| 5620 | prefix_sections_string = optarg; |
| 5621 | break; |
| 5622 | |
| 5623 | case OPTION_PREFIX_ALLOC_SECTIONS: |
| 5624 | prefix_alloc_sections_string = optarg; |
| 5625 | break; |
| 5626 | |
| 5627 | case OPTION_READONLY_TEXT: |
| 5628 | bfd_flags_to_set |= WP_TEXT; |
| 5629 | bfd_flags_to_clear &= ~WP_TEXT; |
| 5630 | break; |
| 5631 | |
| 5632 | case OPTION_WRITABLE_TEXT: |
| 5633 | bfd_flags_to_clear |= WP_TEXT; |
| 5634 | bfd_flags_to_set &= ~WP_TEXT; |
| 5635 | break; |
| 5636 | |
| 5637 | case OPTION_PURE: |
| 5638 | bfd_flags_to_set |= D_PAGED; |
| 5639 | bfd_flags_to_clear &= ~D_PAGED; |
| 5640 | break; |
| 5641 | |
| 5642 | case OPTION_IMPURE: |
| 5643 | bfd_flags_to_clear |= D_PAGED; |
| 5644 | bfd_flags_to_set &= ~D_PAGED; |
| 5645 | break; |
| 5646 | |
| 5647 | case OPTION_EXTRACT_DWO: |
| 5648 | strip_symbols = STRIP_NONDWO; |
| 5649 | break; |
| 5650 | |
| 5651 | case OPTION_EXTRACT_SYMBOL: |
| 5652 | extract_symbol = TRUE; |
| 5653 | break; |
| 5654 | |
| 5655 | case OPTION_REVERSE_BYTES: |
| 5656 | { |
| 5657 | int prev = reverse_bytes; |
| 5658 | |
| 5659 | reverse_bytes = atoi (optarg); |
| 5660 | if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0)) |
| 5661 | fatal (_("number of bytes to reverse must be positive and even")); |
| 5662 | |
| 5663 | if (prev && prev != reverse_bytes) |
| 5664 | non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"), |
| 5665 | prev); |
| 5666 | break; |
| 5667 | } |
| 5668 | |
| 5669 | case OPTION_FILE_ALIGNMENT: |
| 5670 | pe_file_alignment = parse_vma (optarg, "--file-alignment"); |
| 5671 | break; |
| 5672 | |
| 5673 | case OPTION_HEAP: |
| 5674 | { |
| 5675 | char *end; |
| 5676 | pe_heap_reserve = strtoul (optarg, &end, 0); |
| 5677 | if (end == optarg |
| 5678 | || (*end != '.' && *end != '\0')) |
| 5679 | non_fatal (_("%s: invalid reserve value for --heap"), |
| 5680 | optarg); |
| 5681 | else if (*end != '\0') |
| 5682 | { |
| 5683 | pe_heap_commit = strtoul (end + 1, &end, 0); |
| 5684 | if (*end != '\0') |
| 5685 | non_fatal (_("%s: invalid commit value for --heap"), |
| 5686 | optarg); |
| 5687 | } |
| 5688 | } |
| 5689 | break; |
| 5690 | |
| 5691 | case OPTION_IMAGE_BASE: |
| 5692 | pe_image_base = parse_vma (optarg, "--image-base"); |
| 5693 | break; |
| 5694 | |
| 5695 | case OPTION_PE_SECTION_ALIGNMENT: |
| 5696 | pe_section_alignment = parse_vma (optarg, |
| 5697 | "--section-alignment"); |
| 5698 | break; |
| 5699 | |
| 5700 | case OPTION_SUBSYSTEM: |
| 5701 | set_pe_subsystem (optarg); |
| 5702 | break; |
| 5703 | |
| 5704 | case OPTION_STACK: |
| 5705 | { |
| 5706 | char *end; |
| 5707 | pe_stack_reserve = strtoul (optarg, &end, 0); |
| 5708 | if (end == optarg |
| 5709 | || (*end != '.' && *end != '\0')) |
| 5710 | non_fatal (_("%s: invalid reserve value for --stack"), |
| 5711 | optarg); |
| 5712 | else if (*end != '\0') |
| 5713 | { |
| 5714 | pe_stack_commit = strtoul (end + 1, &end, 0); |
| 5715 | if (*end != '\0') |
| 5716 | non_fatal (_("%s: invalid commit value for --stack"), |
| 5717 | optarg); |
| 5718 | } |
| 5719 | } |
| 5720 | break; |
| 5721 | |
| 5722 | case OPTION_VERILOG_DATA_WIDTH: |
| 5723 | VerilogDataWidth = parse_vma (optarg, "--verilog-data-width"); |
| 5724 | if (VerilogDataWidth < 1) |
| 5725 | fatal (_("verilog data width must be at least 1 byte")); |
| 5726 | break; |
| 5727 | |
| 5728 | case 0: |
| 5729 | /* We've been given a long option. */ |
| 5730 | break; |
| 5731 | |
| 5732 | case 'H': |
| 5733 | case 'h': |
| 5734 | copy_usage (stdout, 0); |
| 5735 | |
| 5736 | default: |
| 5737 | copy_usage (stderr, 1); |
| 5738 | } |
| 5739 | } |
| 5740 | |
| 5741 | if (use_globalize && use_keep_global) |
| 5742 | fatal(_("--globalize-symbol(s) is incompatible with -G/--keep-global-symbol(s)")); |
| 5743 | |
| 5744 | if (formats_info) |
| 5745 | { |
| 5746 | display_info (); |
| 5747 | return 0; |
| 5748 | } |
| 5749 | |
| 5750 | if (show_version) |
| 5751 | print_version ("objcopy"); |
| 5752 | |
| 5753 | if (interleave && copy_byte == -1) |
| 5754 | fatal (_("interleave start byte must be set with --byte")); |
| 5755 | |
| 5756 | if (copy_byte >= interleave) |
| 5757 | fatal (_("byte number must be less than interleave")); |
| 5758 | |
| 5759 | if (copy_width > interleave - copy_byte) |
| 5760 | fatal (_("interleave width must be less than or equal to interleave - byte`")); |
| 5761 | |
| 5762 | if (optind == argc || optind + 2 < argc) |
| 5763 | copy_usage (stderr, 1); |
| 5764 | |
| 5765 | input_filename = argv[optind]; |
| 5766 | if (optind + 1 < argc) |
| 5767 | output_filename = argv[optind + 1]; |
| 5768 | |
| 5769 | default_deterministic (); |
| 5770 | |
| 5771 | /* Default is to strip no symbols. */ |
| 5772 | if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF) |
| 5773 | strip_symbols = STRIP_NONE; |
| 5774 | |
| 5775 | if (output_target == NULL) |
| 5776 | output_target = input_target; |
| 5777 | |
| 5778 | /* Convert input EFI target to PEI target. */ |
| 5779 | if (input_target != NULL |
| 5780 | && strncmp (input_target, "efi-", 4) == 0) |
| 5781 | { |
| 5782 | char *efi; |
| 5783 | |
| 5784 | efi = xstrdup (output_target + 4); |
| 5785 | if (strncmp (efi, "bsdrv-", 6) == 0 |
| 5786 | || strncmp (efi, "rtdrv-", 6) == 0) |
| 5787 | efi += 2; |
| 5788 | else if (strncmp (efi, "app-", 4) != 0) |
| 5789 | fatal (_("unknown input EFI target: %s"), input_target); |
| 5790 | |
| 5791 | input_target = efi; |
| 5792 | convert_efi_target (efi); |
| 5793 | } |
| 5794 | |
| 5795 | /* Convert output EFI target to PEI target. */ |
| 5796 | if (output_target != NULL |
| 5797 | && strncmp (output_target, "efi-", 4) == 0) |
| 5798 | { |
| 5799 | char *efi; |
| 5800 | |
| 5801 | efi = xstrdup (output_target + 4); |
| 5802 | if (strncmp (efi, "app-", 4) == 0) |
| 5803 | { |
| 5804 | if (pe_subsystem == -1) |
| 5805 | pe_subsystem = IMAGE_SUBSYSTEM_EFI_APPLICATION; |
| 5806 | } |
| 5807 | else if (strncmp (efi, "bsdrv-", 6) == 0) |
| 5808 | { |
| 5809 | if (pe_subsystem == -1) |
| 5810 | pe_subsystem = IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER; |
| 5811 | efi += 2; |
| 5812 | } |
| 5813 | else if (strncmp (efi, "rtdrv-", 6) == 0) |
| 5814 | { |
| 5815 | if (pe_subsystem == -1) |
| 5816 | pe_subsystem = IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER; |
| 5817 | efi += 2; |
| 5818 | } |
| 5819 | else |
| 5820 | fatal (_("unknown output EFI target: %s"), output_target); |
| 5821 | |
| 5822 | if (pe_file_alignment == (bfd_vma) -1) |
| 5823 | pe_file_alignment = PE_DEF_FILE_ALIGNMENT; |
| 5824 | if (pe_section_alignment == (bfd_vma) -1) |
| 5825 | pe_section_alignment = PE_DEF_SECTION_ALIGNMENT; |
| 5826 | |
| 5827 | output_target = efi; |
| 5828 | convert_efi_target (efi); |
| 5829 | } |
| 5830 | |
| 5831 | if (preserve_dates) |
| 5832 | if (stat (input_filename, & statbuf) < 0) |
| 5833 | fatal (_("warning: could not locate '%s'. System error message: %s"), |
| 5834 | input_filename, strerror (errno)); |
| 5835 | |
| 5836 | /* If there is no destination file, or the source and destination files |
| 5837 | are the same, then create a temp and rename the result into the input. */ |
| 5838 | if (output_filename == NULL |
| 5839 | || filename_cmp (input_filename, output_filename) == 0) |
| 5840 | tmpname = make_tempname (input_filename); |
| 5841 | else |
| 5842 | tmpname = output_filename; |
| 5843 | |
| 5844 | if (tmpname == NULL) |
| 5845 | fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"), |
| 5846 | input_filename, strerror (errno)); |
| 5847 | |
| 5848 | copy_file (input_filename, tmpname, input_target, output_target, input_arch); |
| 5849 | if (status == 0) |
| 5850 | { |
| 5851 | if (preserve_dates) |
| 5852 | set_times (tmpname, &statbuf); |
| 5853 | if (tmpname != output_filename) |
| 5854 | status = (smart_rename (tmpname, input_filename, |
| 5855 | preserve_dates) != 0); |
| 5856 | } |
| 5857 | else |
| 5858 | unlink_if_ordinary (tmpname); |
| 5859 | |
| 5860 | if (tmpname != output_filename) |
| 5861 | free (tmpname); |
| 5862 | |
| 5863 | if (change_warn) |
| 5864 | { |
| 5865 | struct section_list *p; |
| 5866 | |
| 5867 | for (p = change_sections; p != NULL; p = p->next) |
| 5868 | { |
| 5869 | if (! p->used) |
| 5870 | { |
| 5871 | if (p->context & (SECTION_CONTEXT_SET_VMA | SECTION_CONTEXT_ALTER_VMA)) |
| 5872 | { |
| 5873 | char buff [20]; |
| 5874 | |
| 5875 | sprintf_vma (buff, p->vma_val); |
| 5876 | |
| 5877 | /* xgettext:c-format */ |
| 5878 | non_fatal (_("%s %s%c0x%s never used"), |
| 5879 | "--change-section-vma", |
| 5880 | p->pattern, |
| 5881 | p->context & SECTION_CONTEXT_SET_VMA ? '=' : '+', |
| 5882 | buff); |
| 5883 | } |
| 5884 | |
| 5885 | if (p->context & (SECTION_CONTEXT_SET_LMA | SECTION_CONTEXT_ALTER_LMA)) |
| 5886 | { |
| 5887 | char buff [20]; |
| 5888 | |
| 5889 | sprintf_vma (buff, p->lma_val); |
| 5890 | |
| 5891 | /* xgettext:c-format */ |
| 5892 | non_fatal (_("%s %s%c0x%s never used"), |
| 5893 | "--change-section-lma", |
| 5894 | p->pattern, |
| 5895 | p->context & SECTION_CONTEXT_SET_LMA ? '=' : '+', |
| 5896 | buff); |
| 5897 | } |
| 5898 | } |
| 5899 | } |
| 5900 | } |
| 5901 | |
| 5902 | if (strip_specific_buffer) |
| 5903 | free (strip_specific_buffer); |
| 5904 | |
| 5905 | if (strip_unneeded_buffer) |
| 5906 | free (strip_unneeded_buffer); |
| 5907 | |
| 5908 | if (keep_specific_buffer) |
| 5909 | free (keep_specific_buffer); |
| 5910 | |
| 5911 | if (localize_specific_buffer) |
| 5912 | free (globalize_specific_buffer); |
| 5913 | |
| 5914 | if (globalize_specific_buffer) |
| 5915 | free (globalize_specific_buffer); |
| 5916 | |
| 5917 | if (keepglobal_specific_buffer) |
| 5918 | free (keepglobal_specific_buffer); |
| 5919 | |
| 5920 | if (weaken_specific_buffer) |
| 5921 | free (weaken_specific_buffer); |
| 5922 | |
| 5923 | return 0; |
| 5924 | } |
| 5925 | |
| 5926 | int |
| 5927 | main (int argc, char *argv[]) |
| 5928 | { |
| 5929 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
| 5930 | setlocale (LC_MESSAGES, ""); |
| 5931 | #endif |
| 5932 | #if defined (HAVE_SETLOCALE) |
| 5933 | setlocale (LC_CTYPE, ""); |
| 5934 | #endif |
| 5935 | bindtextdomain (PACKAGE, LOCALEDIR); |
| 5936 | textdomain (PACKAGE); |
| 5937 | |
| 5938 | program_name = argv[0]; |
| 5939 | xmalloc_set_program_name (program_name); |
| 5940 | |
| 5941 | START_PROGRESS (program_name, 0); |
| 5942 | |
| 5943 | expandargv (&argc, &argv); |
| 5944 | |
| 5945 | strip_symbols = STRIP_UNDEF; |
| 5946 | discard_locals = LOCALS_UNDEF; |
| 5947 | |
| 5948 | if (bfd_init () != BFD_INIT_MAGIC) |
| 5949 | fatal (_("fatal error: libbfd ABI mismatch")); |
| 5950 | set_default_bfd_target (); |
| 5951 | |
| 5952 | if (is_strip < 0) |
| 5953 | { |
| 5954 | int i = strlen (program_name); |
| 5955 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 5956 | /* Drop the .exe suffix, if any. */ |
| 5957 | if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0) |
| 5958 | { |
| 5959 | i -= 4; |
| 5960 | program_name[i] = '\0'; |
| 5961 | } |
| 5962 | #endif |
| 5963 | is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0); |
| 5964 | } |
| 5965 | |
| 5966 | create_symbol_htabs (); |
| 5967 | |
| 5968 | if (argv != NULL) |
| 5969 | bfd_set_error_program_name (argv[0]); |
| 5970 | |
| 5971 | if (is_strip) |
| 5972 | strip_main (argc, argv); |
| 5973 | else |
| 5974 | copy_main (argc, argv); |
| 5975 | |
| 5976 | END_PROGRESS (program_name); |
| 5977 | |
| 5978 | return status; |
| 5979 | } |