1 /* objcopy.c -- copy object file from input to output, optionally massaging it.
2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
4 Free Software Foundation, Inc.
6 This file is part of GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27 #include "libiberty.h"
29 #include "filenames.h"
32 /* A list of symbols to explicitly strip out, or to keep. A linked
33 list is good enough for a small number from the command line, but
34 this will slow things down a lot if many symbols are being
43 /* A list to support redefine_sym. */
48 struct redefine_node *next;
51 typedef struct section_rename
53 const char * old_name;
54 const char * new_name;
56 struct section_rename * next;
60 /* List of sections to be renamed. */
61 static section_rename * section_rename_list;
63 static void copy_usage PARAMS ((FILE *, int));
64 static void strip_usage PARAMS ((FILE *, int));
65 static flagword parse_flags PARAMS ((const char *));
66 static struct section_list *find_section_list PARAMS ((const char *, boolean));
67 static void setup_section PARAMS ((bfd *, asection *, PTR));
68 static void copy_section PARAMS ((bfd *, asection *, PTR));
69 static void get_sections PARAMS ((bfd *, asection *, PTR));
70 static int compare_section_lma PARAMS ((const PTR, const PTR));
71 static void add_specific_symbol PARAMS ((const char *, struct symlist **));
72 static void add_specific_symbols PARAMS ((const char *, struct symlist **));
73 static boolean is_specified_symbol PARAMS ((const char *, struct symlist *));
74 static boolean is_strip_section PARAMS ((bfd *, asection *));
75 static unsigned int filter_symbols
76 PARAMS ((bfd *, bfd *, asymbol **, asymbol **, long));
77 static void mark_symbols_used_in_relocations PARAMS ((bfd *, asection *, PTR));
78 static void filter_bytes PARAMS ((char *, bfd_size_type *));
79 static boolean write_debugging_info PARAMS ((bfd *, PTR, long *, asymbol ***));
80 static void copy_object PARAMS ((bfd *, bfd *));
81 static void copy_archive PARAMS ((bfd *, bfd *, const char *));
83 PARAMS ((const char *, const char *, const char *, const char *));
84 static int strip_main PARAMS ((int, char **));
85 static int copy_main PARAMS ((int, char **));
86 static const char *lookup_sym_redefinition PARAMS((const char *));
87 static void redefine_list_append PARAMS ((const char *, const char *));
88 static const char * find_section_rename PARAMS ((bfd *, sec_ptr, flagword *));
89 static void add_section_rename PARAMS ((const char *, const char *, flagword));
91 #define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
93 static asymbol **isympp = NULL; /* Input symbols */
94 static asymbol **osympp = NULL; /* Output symbols that survive stripping */
96 /* If `copy_byte' >= 0, copy only that byte of every `interleave' bytes. */
97 static int copy_byte = -1;
98 static int interleave = 4;
100 static boolean verbose; /* Print file and target names. */
101 static boolean preserve_dates; /* Preserve input file timestamp. */
102 static int status = 0; /* Exit status. */
107 STRIP_NONE, /* don't strip */
108 STRIP_DEBUG, /* strip all debugger symbols */
109 STRIP_UNNEEDED, /* strip unnecessary symbols */
110 STRIP_ALL /* strip all symbols */
113 /* Which symbols to remove. */
114 static enum strip_action strip_symbols;
119 LOCALS_START_L, /* discard locals starting with L */
120 LOCALS_ALL /* discard all locals */
123 /* Which local symbols to remove. Overrides STRIP_ALL. */
124 static enum locals_action discard_locals;
126 /* What kind of change to perform. */
134 /* Structure used to hold lists of sections and actions to take. */
137 struct section_list * next; /* Next section to change. */
138 const char * name; /* Section name. */
139 boolean used; /* Whether this entry was used. */
140 boolean remove; /* Whether to remove this section. */
141 boolean copy; /* Whether to copy this section. */
142 enum change_action change_vma;/* Whether to change or set VMA. */
143 bfd_vma vma_val; /* Amount to change by or set to. */
144 enum change_action change_lma;/* Whether to change or set LMA. */
145 bfd_vma lma_val; /* Amount to change by or set to. */
146 boolean set_flags; /* Whether to set the section flags. */
147 flagword flags; /* What to set the section flags to. */
150 static struct section_list *change_sections;
152 /* True if some sections are to be removed. */
153 static boolean sections_removed;
155 /* True if only some sections are to be copied. */
156 static boolean sections_copied;
158 /* Changes to the start address. */
159 static bfd_vma change_start = 0;
160 static boolean set_start_set = false;
161 static bfd_vma set_start;
163 /* Changes to section addresses. */
164 static bfd_vma change_section_address = 0;
166 /* Filling gaps between sections. */
167 static boolean gap_fill_set = false;
168 static bfd_byte gap_fill = 0;
170 /* Pad to a given address. */
171 static boolean pad_to_set = false;
172 static bfd_vma pad_to;
174 /* Use alternate machine code? */
175 static int use_alt_mach_code = 0;
177 /* List of sections to add. */
180 /* Next section to add. */
181 struct section_add *next;
182 /* Name of section to add. */
184 /* Name of file holding section contents. */
185 const char *filename;
188 /* Contents of file. */
190 /* BFD section, after it has been added. */
194 /* List of sections to add to the output BFD. */
195 static struct section_add *add_sections;
197 /* Whether to convert debugging information. */
198 static boolean convert_debugging = false;
200 /* Whether to change the leading character in symbol names. */
201 static boolean change_leading_char = false;
203 /* Whether to remove the leading character from global symbol names. */
204 static boolean remove_leading_char = false;
206 /* List of symbols to strip, keep, localize, keep-global, weaken,
208 static struct symlist *strip_specific_list = NULL;
209 static struct symlist *keep_specific_list = NULL;
210 static struct symlist *localize_specific_list = NULL;
211 static struct symlist *keepglobal_specific_list = NULL;
212 static struct symlist *weaken_specific_list = NULL;
213 static struct redefine_node *redefine_sym_list = NULL;
215 /* If this is true, we weaken global symbols (set BSF_WEAK). */
216 static boolean weaken = false;
218 /* 150 isn't special; it's just an arbitrary non-ASCII char value. */
220 #define OPTION_ADD_SECTION 150
221 #define OPTION_CHANGE_ADDRESSES (OPTION_ADD_SECTION + 1)
222 #define OPTION_CHANGE_LEADING_CHAR (OPTION_CHANGE_ADDRESSES + 1)
223 #define OPTION_CHANGE_START (OPTION_CHANGE_LEADING_CHAR + 1)
224 #define OPTION_CHANGE_SECTION_ADDRESS (OPTION_CHANGE_START + 1)
225 #define OPTION_CHANGE_SECTION_LMA (OPTION_CHANGE_SECTION_ADDRESS + 1)
226 #define OPTION_CHANGE_SECTION_VMA (OPTION_CHANGE_SECTION_LMA + 1)
227 #define OPTION_CHANGE_WARNINGS (OPTION_CHANGE_SECTION_VMA + 1)
228 #define OPTION_DEBUGGING (OPTION_CHANGE_WARNINGS + 1)
229 #define OPTION_GAP_FILL (OPTION_DEBUGGING + 1)
230 #define OPTION_NO_CHANGE_WARNINGS (OPTION_GAP_FILL + 1)
231 #define OPTION_PAD_TO (OPTION_NO_CHANGE_WARNINGS + 1)
232 #define OPTION_REMOVE_LEADING_CHAR (OPTION_PAD_TO + 1)
233 #define OPTION_SET_SECTION_FLAGS (OPTION_REMOVE_LEADING_CHAR + 1)
234 #define OPTION_SET_START (OPTION_SET_SECTION_FLAGS + 1)
235 #define OPTION_STRIP_UNNEEDED (OPTION_SET_START + 1)
236 #define OPTION_WEAKEN (OPTION_STRIP_UNNEEDED + 1)
237 #define OPTION_REDEFINE_SYM (OPTION_WEAKEN + 1)
238 #define OPTION_SREC_LEN (OPTION_REDEFINE_SYM + 1)
239 #define OPTION_SREC_FORCES3 (OPTION_SREC_LEN + 1)
240 #define OPTION_STRIP_SYMBOLS (OPTION_SREC_FORCES3 + 1)
241 #define OPTION_KEEP_SYMBOLS (OPTION_STRIP_SYMBOLS + 1)
242 #define OPTION_LOCALIZE_SYMBOLS (OPTION_KEEP_SYMBOLS + 1)
243 #define OPTION_KEEPGLOBAL_SYMBOLS (OPTION_LOCALIZE_SYMBOLS + 1)
244 #define OPTION_WEAKEN_SYMBOLS (OPTION_KEEPGLOBAL_SYMBOLS + 1)
245 #define OPTION_RENAME_SECTION (OPTION_WEAKEN_SYMBOLS + 1)
246 #define OPTION_ALT_MACH_CODE (OPTION_RENAME_SECTION + 1)
248 /* Options to handle if running as "strip". */
250 static struct option strip_options[] =
252 {"discard-all", no_argument, 0, 'x'},
253 {"discard-locals", no_argument, 0, 'X'},
254 {"format", required_argument, 0, 'F'}, /* Obsolete */
255 {"help", no_argument, 0, 'h'},
256 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
257 {"input-target", required_argument, 0, 'I'},
258 {"keep-symbol", required_argument, 0, 'K'},
259 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
260 {"output-target", required_argument, 0, 'O'},
261 {"output-file", required_argument, 0, 'o'},
262 {"preserve-dates", no_argument, 0, 'p'},
263 {"remove-section", required_argument, 0, 'R'},
264 {"strip-all", no_argument, 0, 's'},
265 {"strip-debug", no_argument, 0, 'S'},
266 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
267 {"strip-symbol", required_argument, 0, 'N'},
268 {"target", required_argument, 0, 'F'},
269 {"verbose", no_argument, 0, 'v'},
270 {"version", no_argument, 0, 'V'},
271 {0, no_argument, 0, 0}
274 /* Options to handle if running as "objcopy". */
276 static struct option copy_options[] =
278 {"add-section", required_argument, 0, OPTION_ADD_SECTION},
279 {"adjust-start", required_argument, 0, OPTION_CHANGE_START},
280 {"adjust-vma", required_argument, 0, OPTION_CHANGE_ADDRESSES},
281 {"adjust-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
282 {"adjust-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
283 {"binary-architecture", required_argument, 0, 'B'},
284 {"byte", required_argument, 0, 'b'},
285 {"change-addresses", required_argument, 0, OPTION_CHANGE_ADDRESSES},
286 {"change-leading-char", no_argument, 0, OPTION_CHANGE_LEADING_CHAR},
287 {"change-section-address", required_argument, 0, OPTION_CHANGE_SECTION_ADDRESS},
288 {"change-section-lma", required_argument, 0, OPTION_CHANGE_SECTION_LMA},
289 {"change-section-vma", required_argument, 0, OPTION_CHANGE_SECTION_VMA},
290 {"change-start", required_argument, 0, OPTION_CHANGE_START},
291 {"change-warnings", no_argument, 0, OPTION_CHANGE_WARNINGS},
292 {"debugging", no_argument, 0, OPTION_DEBUGGING},
293 {"discard-all", no_argument, 0, 'x'},
294 {"discard-locals", no_argument, 0, 'X'},
295 {"only-section", required_argument, 0, 'j'},
296 {"format", required_argument, 0, 'F'}, /* Obsolete */
297 {"gap-fill", required_argument, 0, OPTION_GAP_FILL},
298 {"help", no_argument, 0, 'h'},
299 {"input-format", required_argument, 0, 'I'}, /* Obsolete */
300 {"input-target", required_argument, 0, 'I'},
301 {"interleave", required_argument, 0, 'i'},
302 {"keep-symbol", required_argument, 0, 'K'},
303 {"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
304 {"no-change-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
305 {"output-format", required_argument, 0, 'O'}, /* Obsolete */
306 {"output-target", required_argument, 0, 'O'},
307 {"pad-to", required_argument, 0, OPTION_PAD_TO},
308 {"preserve-dates", no_argument, 0, 'p'},
309 {"localize-symbol", required_argument, 0, 'L'},
310 {"keep-global-symbol", required_argument, 0, 'G'},
311 {"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
312 {"remove-section", required_argument, 0, 'R'},
313 {"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
314 {"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
315 {"set-start", required_argument, 0, OPTION_SET_START},
316 {"strip-all", no_argument, 0, 'S'},
317 {"strip-debug", no_argument, 0, 'g'},
318 {"strip-unneeded", no_argument, 0, OPTION_STRIP_UNNEEDED},
319 {"strip-symbol", required_argument, 0, 'N'},
320 {"target", required_argument, 0, 'F'},
321 {"verbose", no_argument, 0, 'v'},
322 {"version", no_argument, 0, 'V'},
323 {"weaken", no_argument, 0, OPTION_WEAKEN},
324 {"weaken-symbol", required_argument, 0, 'W'},
325 {"redefine-sym", required_argument, 0, OPTION_REDEFINE_SYM},
326 {"srec-len", required_argument, 0, OPTION_SREC_LEN},
327 {"srec-forceS3", no_argument, 0, OPTION_SREC_FORCES3},
328 {"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
329 {"strip-symbols", required_argument, 0, OPTION_STRIP_SYMBOLS},
330 {"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
331 {"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
332 {"weaken-symbols", required_argument, 0, OPTION_WEAKEN_SYMBOLS},
333 {"alt-machine-code", required_argument, 0, OPTION_ALT_MACH_CODE},
334 {0, no_argument, 0, 0}
338 extern char *program_name;
340 /* This flag distinguishes between strip and objcopy:
341 1 means this is 'strip'; 0 means this is 'objcopy'.
342 -1 means if we should use argv[0] to decide. */
345 /* The maximum length of an S record. This variable is declared in srec.c
346 and can be modified by the --srec-len parameter. */
347 extern unsigned int Chunk;
349 /* Restrict the generation of Srecords to type S3 only.
350 This variable is declare in bfd/srec.c and can be toggled
351 on by the --srec-forceS3 command line switch. */
352 extern boolean S3Forced;
354 /* Defined in bfd/binary.c. Used to set architecture of input binary files. */
355 extern enum bfd_architecture bfd_external_binary_architecture;
359 copy_usage (stream, exit_status)
363 fprintf (stream, _("Usage: %s [option(s)] in-file [out-file]\n"), program_name);
364 fprintf (stream, _(" Copies a binary file, possibly transforming it in the process\n"));
365 fprintf (stream, _(" The options are:\n"));
366 fprintf (stream, _("\
367 -I --input-target <bfdname> Assume input file is in format <bfdname>\n\
368 -O --output-target <bfdname> Create an output file in format <bfdname>\n\
369 -B --binary-architecture <arch> Set arch of output file, when input is binary\n\
370 -F --target <bfdname> Set both input and output format to <bfdname>\n\
371 --debugging Convert debugging information, if possible\n\
372 -p --preserve-dates Copy modified/access timestamps to the output\n\
373 -j --only-section <name> Only copy section <name> into the output\n\
374 -R --remove-section <name> Remove section <name> from the output\n\
375 -S --strip-all Remove all symbol and relocation information\n\
376 -g --strip-debug Remove all debugging symbols\n\
377 --strip-unneeded Remove all symbols not needed by relocations\n\
378 -N --strip-symbol <name> Do not copy symbol <name>\n\
379 -K --keep-symbol <name> Only copy symbol <name>\n\
380 -L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
381 -G --keep-global-symbol <name> Localize all symbols except <name>\n\
382 -W --weaken-symbol <name> Force symbol <name> to be marked as a weak\n\
383 --weaken Force all global symbols to be marked as weak\n\
384 -x --discard-all Remove all non-global symbols\n\
385 -X --discard-locals Remove any compiler-generated symbols\n\
386 -i --interleave <number> Only copy one out of every <number> bytes\n\
387 -b --byte <num> Select byte <num> in every interleaved block\n\
388 --gap-fill <val> Fill gaps between sections with <val>\n\
389 --pad-to <addr> Pad the last section up to address <addr>\n\
390 --set-start <addr> Set the start address to <addr>\n\
391 {--change-start|--adjust-start} <incr>\n\
392 Add <incr> to the start address\n\
393 {--change-addresses|--adjust-vma} <incr>\n\
394 Add <incr> to LMA, VMA and start addresses\n\
395 {--change-section-address|--adjust-section-vma} <name>{=|+|-}<val>\n\
396 Change LMA and VMA of section <name> by <val>\n\
397 --change-section-lma <name>{=|+|-}<val>\n\
398 Change the LMA of section <name> by <val>\n\
399 --change-section-vma <name>{=|+|-}<val>\n\
400 Change the VMA of section <name> by <val>\n\
401 {--[no-]change-warnings|--[no-]adjust-warnings}\n\
402 Warn if a named section does not exist\n\
403 --set-section-flags <name>=<flags>\n\
404 Set section <name>'s properties to <flags>\n\
405 --add-section <name>=<file> Add section <name> found in <file> to output\n\
406 --rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
407 --change-leading-char Force output format's leading character style\n\
408 --remove-leading-char Remove leading character from global symbols\n\
409 --redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
410 --srec-len <number> Restrict the length of generated Srecords\n\
411 --srec-forceS3 Restrict the type of generated Srecords to S3\n\
412 --strip-symbols <file> -N for all symbols listed in <file>\n\
413 --keep-symbols <file> -K for all symbols listed in <file>\n\
414 --localize-symbols <file> -L for all symbols listed in <file>\n\
415 --keep-global-symbols <file> -G for all symbols listed in <file>\n\
416 --weaken-symbols <file> -W for all symbols listed in <file>\n\
417 --alt-machine-code <index> Use alternate machine code for output\n\
418 -v --verbose List all object files modified\n\
419 -V --version Display this program's version number\n\
420 -h --help Display this output\n\
422 list_supported_targets (program_name, stream);
423 if (exit_status == 0)
424 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
429 strip_usage (stream, exit_status)
433 fprintf (stream, _("Usage: %s <option(s)> in-file(s)\n"), program_name);
434 fprintf (stream, _(" Removes symbols and sections from files\n"));
435 fprintf (stream, _(" The options are:\n"));
436 fprintf (stream, _("\
437 -I --input-target=<bfdname> Assume input file is in format <bfdname>\n\
438 -O --output-target=<bfdname> Create an output file in format <bfdname>\n\
439 -F --target=<bfdname> Set both input and output format to <bfdname>\n\
440 -p --preserve-dates Copy modified/access timestamps to the output\n\
441 -R --remove-section=<name> Remove section <name> from the output\n\
442 -s --strip-all Remove all symbol and relocation information\n\
443 -g -S -d --strip-debug Remove all debugging symbols\n\
444 --strip-unneeded Remove all symbols not needed by relocations\n\
445 -N --strip-symbol=<name> Do not copy symbol <name>\n\
446 -K --keep-symbol=<name> Only copy symbol <name>\n\
447 -x --discard-all Remove all non-global symbols\n\
448 -X --discard-locals Remove any compiler-generated symbols\n\
449 -v --verbose List all object files modified\n\
450 -V --version Display this program's version number\n\
451 -h --help Display this output\n\
452 -o <file> Place stripped output into <file>\n\
455 list_supported_targets (program_name, stream);
456 if (exit_status == 0)
457 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
461 /* Parse section flags into a flagword, with a fatal error if the
462 string can't be parsed. */
476 snext = strchr (s, ',');
486 #define PARSE_FLAG(fname,fval) \
487 else if (strncasecmp (fname, s, len) == 0) ret |= fval
488 PARSE_FLAG ("alloc", SEC_ALLOC);
489 PARSE_FLAG ("load", SEC_LOAD);
490 PARSE_FLAG ("noload", SEC_NEVER_LOAD);
491 PARSE_FLAG ("readonly", SEC_READONLY);
492 PARSE_FLAG ("debug", SEC_DEBUGGING);
493 PARSE_FLAG ("code", SEC_CODE);
494 PARSE_FLAG ("data", SEC_DATA);
495 PARSE_FLAG ("rom", SEC_ROM);
496 PARSE_FLAG ("share", SEC_SHARED);
497 PARSE_FLAG ("contents", SEC_HAS_CONTENTS);
503 copy = xmalloc (len + 1);
504 strncpy (copy, s, len);
506 non_fatal (_("unrecognized section flag `%s'"), copy);
507 fatal (_("supported flags: %s"),
508 "alloc, load, noload, readonly, debug, code, data, rom, share, contents");
518 /* Find and optionally add an entry in the change_sections list. */
520 static struct section_list *
521 find_section_list (name, add)
525 register struct section_list *p;
527 for (p = change_sections; p != NULL; p = p->next)
528 if (strcmp (p->name, name) == 0)
534 p = (struct section_list *) xmalloc (sizeof (struct section_list));
539 p->change_vma = CHANGE_IGNORE;
540 p->change_lma = CHANGE_IGNORE;
543 p->set_flags = false;
546 p->next = change_sections;
552 /* Add a symbol to strip_specific_list. */
555 add_specific_symbol (name, list)
557 struct symlist **list;
559 struct symlist *tmp_list;
561 tmp_list = (struct symlist *) xmalloc (sizeof (struct symlist));
562 tmp_list->name = name;
563 tmp_list->next = *list;
567 /* Add symbols listed in `filename' to strip_specific_list. */
569 #define IS_WHITESPACE(c) ((c) == ' ' || (c) == '\t')
570 #define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
573 add_specific_symbols (filename, list)
574 const char *filename;
575 struct symlist **list;
581 unsigned int line_count;
583 if (stat (filename, & st) < 0)
584 fatal (_("cannot stat: %s: %s"), filename, strerror (errno));
588 buffer = (char *) xmalloc (st.st_size + 2);
589 f = fopen (filename, FOPEN_RT);
591 fatal (_("cannot open: %s: %s"), filename, strerror (errno));
593 if (fread (buffer, 1, st.st_size, f) == 0 || ferror (f))
594 fatal (_("%s: fread failed"), filename);
597 buffer [st.st_size] = '\n';
598 buffer [st.st_size + 1] = '\0';
602 for (line = buffer; * line != '\0'; line ++)
607 int finished = false;
609 for (eol = line;; eol ++)
615 /* Cope with \n\r. */
623 /* Cope with \r\n. */
634 /* Line comment, Terminate the line here, in case a
635 name is present and then allow the rest of the
636 loop to find the real end of the line. */
648 /* A name may now exist somewhere between 'line' and 'eol'.
649 Strip off leading whitespace and trailing whitespace,
650 then add it to the list. */
651 for (name = line; IS_WHITESPACE (* name); name ++)
653 for (name_end = name;
654 (! IS_WHITESPACE (* name_end))
655 && (! IS_LINE_TERMINATOR (* name_end));
659 if (! IS_LINE_TERMINATOR (* name_end))
663 for (extra = name_end + 1; IS_WHITESPACE (* extra); extra ++)
666 if (! IS_LINE_TERMINATOR (* extra))
667 non_fatal (_("Ignoring rubbish found on line %d of %s"),
668 line_count, filename);
674 add_specific_symbol (name, list);
676 /* Advance line pointer to end of line. The 'eol ++' in the for
677 loop above will then advance us to the start of the next line. */
683 /* See whether a symbol should be stripped or kept based on
684 strip_specific_list and keep_symbols. */
687 is_specified_symbol (name, list)
689 struct symlist *list;
691 struct symlist *tmp_list;
693 for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
694 if (strcmp (name, tmp_list->name) == 0)
700 /* See if a section is being removed. */
703 is_strip_section (abfd, sec)
704 bfd *abfd ATTRIBUTE_UNUSED;
707 struct section_list *p;
709 if ((bfd_get_section_flags (abfd, sec) & SEC_DEBUGGING) != 0
710 && (strip_symbols == STRIP_DEBUG
711 || strip_symbols == STRIP_UNNEEDED
712 || strip_symbols == STRIP_ALL
713 || discard_locals == LOCALS_ALL
714 || convert_debugging))
717 if (! sections_removed && ! sections_copied)
720 p = find_section_list (bfd_get_section_name (abfd, sec), false);
721 if (sections_removed && p != NULL && p->remove)
723 if (sections_copied && (p == NULL || ! p->copy))
728 /* Choose which symbol entries to copy; put the result in OSYMS.
729 We don't copy in place, because that confuses the relocs.
730 Return the number of symbols to print. */
733 filter_symbols (abfd, obfd, osyms, isyms, symcount)
736 asymbol **osyms, **isyms;
739 register asymbol **from = isyms, **to = osyms;
740 long src_count = 0, dst_count = 0;
741 int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
744 for (; src_count < symcount; src_count++)
746 asymbol *sym = from[src_count];
747 flagword flags = sym->flags;
748 const char *name = bfd_asymbol_name (sym);
752 if (redefine_sym_list)
754 const char *old_name, *new_name;
756 old_name = bfd_asymbol_name (sym);
757 new_name = lookup_sym_redefinition (old_name);
758 name = bfd_asymbol_name (sym) = new_name;
761 if (change_leading_char
762 && (bfd_get_symbol_leading_char (abfd)
763 != bfd_get_symbol_leading_char (obfd))
764 && (bfd_get_symbol_leading_char (abfd) == '\0'
765 || (name[0] == bfd_get_symbol_leading_char (abfd))))
767 if (bfd_get_symbol_leading_char (obfd) == '\0')
768 name = bfd_asymbol_name (sym) = name + 1;
773 n = xmalloc (strlen (name) + 2);
774 n[0] = bfd_get_symbol_leading_char (obfd);
775 if (bfd_get_symbol_leading_char (abfd) == '\0')
776 strcpy (n + 1, name);
778 strcpy (n + 1, name + 1);
779 name = bfd_asymbol_name (sym) = n;
783 undefined = bfd_is_und_section (bfd_get_section (sym));
785 if (remove_leading_char
786 && ((flags & BSF_GLOBAL) != 0
787 || (flags & BSF_WEAK) != 0
789 || bfd_is_com_section (bfd_get_section (sym)))
790 && name[0] == bfd_get_symbol_leading_char (abfd))
791 name = bfd_asymbol_name (sym) = name + 1;
793 if (strip_symbols == STRIP_ALL)
795 else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
796 || ((flags & BSF_SECTION_SYM) != 0
797 && ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
800 else if (relocatable /* Relocatable file. */
801 && (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
803 else if (bfd_decode_symclass (sym) == 'I')
804 /* Global symbols in $idata sections need to be retained
805 even if relocatable is false. External users of the
806 library containing the $idata section may reference these
809 else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
810 || (flags & BSF_WEAK) != 0
812 || bfd_is_com_section (bfd_get_section (sym)))
813 keep = strip_symbols != STRIP_UNNEEDED;
814 else if ((flags & BSF_DEBUGGING) != 0) /* Debugging symbol. */
815 keep = (strip_symbols != STRIP_DEBUG
816 && strip_symbols != STRIP_UNNEEDED
817 && ! convert_debugging);
818 else if (bfd_get_section (sym)->comdat)
819 /* COMDAT sections store special information in local
820 symbols, so we cannot risk stripping any of them. */
822 else /* Local symbol. */
823 keep = (strip_symbols != STRIP_UNNEEDED
824 && (discard_locals != LOCALS_ALL
825 && (discard_locals != LOCALS_START_L
826 || ! bfd_is_local_label (abfd, sym))));
828 if (keep && is_specified_symbol (name, strip_specific_list))
830 if (!keep && is_specified_symbol (name, keep_specific_list))
832 if (keep && is_strip_section (abfd, bfd_get_section (sym)))
835 if (keep && (flags & BSF_GLOBAL) != 0
836 && (weaken || is_specified_symbol (name, weaken_specific_list)))
838 sym->flags &=~ BSF_GLOBAL;
839 sym->flags |= BSF_WEAK;
841 if (keep && !undefined && (flags & (BSF_GLOBAL | BSF_WEAK))
842 && (is_specified_symbol (name, localize_specific_list)
843 || (keepglobal_specific_list != NULL
844 && ! is_specified_symbol (name, keepglobal_specific_list))))
846 sym->flags &= ~(BSF_GLOBAL | BSF_WEAK);
847 sym->flags |= BSF_LOCAL;
851 to[dst_count++] = sym;
854 to[dst_count] = NULL;
859 /* Find the redefined name of symbol SOURCE. */
862 lookup_sym_redefinition (source)
865 struct redefine_node *list;
867 for (list = redefine_sym_list; list != NULL; list = list->next)
868 if (strcmp (source, list->source) == 0)
874 /* Add a node to a symbol redefine list. */
877 redefine_list_append (source, target)
881 struct redefine_node **p;
882 struct redefine_node *list;
883 struct redefine_node *new_node;
885 for (p = &redefine_sym_list; (list = *p) != NULL; p = &list->next)
887 if (strcmp (source, list->source) == 0)
888 fatal (_("%s: Multiple redefinition of symbol \"%s\""),
892 if (strcmp (target, list->target) == 0)
893 fatal (_("%s: Symbol \"%s\" is target of more than one redefinition"),
898 new_node = (struct redefine_node *) xmalloc (sizeof (struct redefine_node));
900 new_node->source = strdup (source);
901 new_node->target = strdup (target);
902 new_node->next = NULL;
907 /* Keep only every `copy_byte'th byte in MEMHUNK, which is *SIZE bytes long.
911 filter_bytes (memhunk, size)
915 char *from = memhunk + copy_byte, *to = memhunk, *end = memhunk + *size;
917 for (; from < end; from += interleave)
920 if (*size % interleave > (bfd_size_type) copy_byte)
921 *size = (*size / interleave) + 1;
926 /* Copy object file IBFD onto OBFD. */
929 copy_object (ibfd, obfd)
935 asection **osections = NULL;
936 bfd_size_type *gaps = NULL;
937 bfd_size_type max_gap = 0;
941 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
942 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
943 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
945 fatal (_("Unable to change endianness of input file(s)"));
949 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
950 RETURN_NONFATAL (bfd_get_filename (obfd));
953 printf (_("copy from %s(%s) to %s(%s)\n"),
954 bfd_get_filename (ibfd), bfd_get_target (ibfd),
955 bfd_get_filename (obfd), bfd_get_target (obfd));
960 start = bfd_get_start_address (ibfd);
961 start += change_start;
963 /* Neither the start address nor the flags
964 need to be set for a core file. */
965 if (bfd_get_format (obfd) != bfd_core)
967 if (!bfd_set_start_address (obfd, start)
968 || !bfd_set_file_flags (obfd,
969 (bfd_get_file_flags (ibfd)
970 & bfd_applicable_file_flags (obfd))))
971 RETURN_NONFATAL (bfd_get_filename (ibfd));
974 /* Copy architecture of input file to output file. */
975 if (!bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
976 bfd_get_mach (ibfd)))
977 non_fatal (_("Warning: Output file cannot represent architecture %s"),
978 bfd_printable_arch_mach (bfd_get_arch (ibfd),
979 bfd_get_mach (ibfd)));
981 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
982 RETURN_NONFATAL (bfd_get_filename (ibfd));
987 if (osympp != isympp)
990 /* BFD mandates that all output sections be created and sizes set before
991 any output is done. Thus, we traverse all sections multiple times. */
992 bfd_map_over_sections (ibfd, setup_section, (void *) obfd);
994 if (add_sections != NULL)
996 struct section_add *padd;
997 struct section_list *pset;
999 for (padd = add_sections; padd != NULL; padd = padd->next)
1001 padd->section = bfd_make_section (obfd, padd->name);
1002 if (padd->section == NULL)
1004 non_fatal (_("can't create section `%s': %s"),
1005 padd->name, bfd_errmsg (bfd_get_error ()));
1013 if (! bfd_set_section_size (obfd, padd->section, padd->size))
1014 RETURN_NONFATAL (bfd_get_filename (obfd));
1016 pset = find_section_list (padd->name, false);
1020 if (pset != NULL && pset->set_flags)
1021 flags = pset->flags | SEC_HAS_CONTENTS;
1023 flags = SEC_HAS_CONTENTS | SEC_READONLY | SEC_DATA;
1025 if (! bfd_set_section_flags (obfd, padd->section, flags))
1026 RETURN_NONFATAL (bfd_get_filename (obfd));
1030 if (pset->change_vma != CHANGE_IGNORE)
1031 if (! bfd_set_section_vma (obfd, padd->section, pset->vma_val))
1032 RETURN_NONFATAL (bfd_get_filename (obfd));
1034 if (pset->change_lma != CHANGE_IGNORE)
1036 padd->section->lma = pset->lma_val;
1038 if (! bfd_set_section_alignment
1039 (obfd, padd->section,
1040 bfd_section_alignment (obfd, padd->section)))
1041 RETURN_NONFATAL (bfd_get_filename (obfd));
1048 if (gap_fill_set || pad_to_set)
1053 /* We must fill in gaps between the sections and/or we must pad
1054 the last section to a specified address. We do this by
1055 grabbing a list of the sections, sorting them by VMA, and
1056 increasing the section sizes as required to fill the gaps.
1057 We write out the gap contents below. */
1059 c = bfd_count_sections (obfd);
1060 osections = (asection **) xmalloc (c * sizeof (asection *));
1062 bfd_map_over_sections (obfd, get_sections, (void *) &set);
1064 qsort (osections, c, sizeof (asection *), compare_section_lma);
1066 gaps = (bfd_size_type *) xmalloc (c * sizeof (bfd_size_type));
1067 memset (gaps, 0, c * sizeof (bfd_size_type));
1071 for (i = 0; i < c - 1; i++)
1075 bfd_vma gap_start, gap_stop;
1077 flags = bfd_get_section_flags (obfd, osections[i]);
1078 if ((flags & SEC_HAS_CONTENTS) == 0
1079 || (flags & SEC_LOAD) == 0)
1082 size = bfd_section_size (obfd, osections[i]);
1083 gap_start = bfd_section_lma (obfd, osections[i]) + size;
1084 gap_stop = bfd_section_lma (obfd, osections[i + 1]);
1085 if (gap_start < gap_stop)
1087 if (! bfd_set_section_size (obfd, osections[i],
1088 size + (gap_stop - gap_start)))
1090 non_fatal (_("Can't fill gap after %s: %s"),
1091 bfd_get_section_name (obfd, osections[i]),
1092 bfd_errmsg (bfd_get_error ()));
1096 gaps[i] = gap_stop - gap_start;
1097 if (max_gap < gap_stop - gap_start)
1098 max_gap = gap_stop - gap_start;
1108 lma = bfd_section_lma (obfd, osections[c - 1]);
1109 size = bfd_section_size (obfd, osections[c - 1]);
1110 if (lma + size < pad_to)
1112 if (! bfd_set_section_size (obfd, osections[c - 1],
1115 non_fatal (_("Can't add padding to %s: %s"),
1116 bfd_get_section_name (obfd, osections[c - 1]),
1117 bfd_errmsg (bfd_get_error ()));
1122 gaps[c - 1] = pad_to - (lma + size);
1123 if (max_gap < pad_to - (lma + size))
1124 max_gap = pad_to - (lma + size);
1130 /* Symbol filtering must happen after the output sections
1131 have been created, but before their contents are set. */
1133 symsize = bfd_get_symtab_upper_bound (ibfd);
1135 RETURN_NONFATAL (bfd_get_filename (ibfd));
1137 osympp = isympp = (asymbol **) xmalloc (symsize);
1138 symcount = bfd_canonicalize_symtab (ibfd, isympp);
1140 RETURN_NONFATAL (bfd_get_filename (ibfd));
1142 if (convert_debugging)
1143 dhandle = read_debugging_info (ibfd, isympp, symcount);
1145 if (strip_symbols == STRIP_DEBUG
1146 || strip_symbols == STRIP_ALL
1147 || strip_symbols == STRIP_UNNEEDED
1148 || discard_locals != LOCALS_UNDEF
1149 || strip_specific_list != NULL
1150 || keep_specific_list != NULL
1151 || localize_specific_list != NULL
1152 || keepglobal_specific_list != NULL
1153 || weaken_specific_list != NULL
1156 || convert_debugging
1157 || change_leading_char
1158 || remove_leading_char
1159 || redefine_sym_list
1162 /* Mark symbols used in output relocations so that they
1163 are kept, even if they are local labels or static symbols.
1165 Note we iterate over the input sections examining their
1166 relocations since the relocations for the output sections
1167 haven't been set yet. mark_symbols_used_in_relocations will
1168 ignore input sections which have no corresponding output
1170 if (strip_symbols != STRIP_ALL)
1171 bfd_map_over_sections (ibfd,
1172 mark_symbols_used_in_relocations,
1174 osympp = (asymbol **) xmalloc ((symcount + 1) * sizeof (asymbol *));
1175 symcount = filter_symbols (ibfd, obfd, osympp, isympp, symcount);
1178 if (convert_debugging && dhandle != NULL)
1180 if (! write_debugging_info (obfd, dhandle, &symcount, &osympp))
1187 bfd_set_symtab (obfd, osympp, symcount);
1189 /* This has to happen after the symbol table has been set. */
1190 bfd_map_over_sections (ibfd, copy_section, (void *) obfd);
1192 if (add_sections != NULL)
1194 struct section_add *padd;
1196 for (padd = add_sections; padd != NULL; padd = padd->next)
1198 if (! bfd_set_section_contents (obfd, padd->section,
1199 (PTR) padd->contents,
1201 (bfd_size_type) padd->size))
1202 RETURN_NONFATAL (bfd_get_filename (obfd));
1206 if (gap_fill_set || pad_to_set)
1211 /* Fill in the gaps. */
1214 buf = (bfd_byte *) xmalloc (max_gap);
1215 memset (buf, gap_fill, (size_t) max_gap);
1217 c = bfd_count_sections (obfd);
1218 for (i = 0; i < c; i++)
1226 off = bfd_section_size (obfd, osections[i]) - left;
1237 if (! bfd_set_section_contents (obfd, osections[i], buf,
1239 RETURN_NONFATAL (bfd_get_filename (obfd));
1248 /* Allow the BFD backend to copy any private data it understands
1249 from the input BFD to the output BFD. This is done last to
1250 permit the routine to look at the filtered symbol table, which is
1251 important for the ECOFF code at least. */
1252 if (! bfd_copy_private_bfd_data (ibfd, obfd))
1254 non_fatal (_("%s: error copying private BFD data: %s"),
1255 bfd_get_filename (obfd),
1256 bfd_errmsg (bfd_get_error ()));
1261 /* Switch to the alternate machine code. We have to do this at the
1262 very end, because we only initialize the header when we create
1263 the first section. */
1264 if (use_alt_mach_code != 0)
1266 if (!bfd_alt_mach_code (obfd, use_alt_mach_code))
1267 non_fatal (_("unknown alternate machine code, ignored"));
1271 /* Read each archive element in turn from IBFD, copy the
1272 contents to temp file, and keep the temp file handle. */
1275 copy_archive (ibfd, obfd, output_target)
1278 const char *output_target;
1282 struct name_list *next;
1286 bfd **ptr = &obfd->archive_head;
1288 char *dir = make_tempname (bfd_get_filename (obfd));
1290 /* Make a temp directory to hold the contents. */
1291 #if defined (_WIN32) && !defined (__CYGWIN32__)
1292 if (mkdir (dir) != 0)
1294 if (mkdir (dir, 0700) != 0)
1297 fatal (_("cannot mkdir %s for archive copying (error: %s)"),
1298 dir, strerror (errno));
1300 obfd->has_armap = ibfd->has_armap;
1304 this_element = bfd_openr_next_archived_file (ibfd, NULL);
1306 if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
1307 RETURN_NONFATAL (bfd_get_filename (obfd));
1309 while (!status && this_element != (bfd *) NULL)
1311 /* Create an output file for this member. */
1312 char *output_name = concat (dir, "/", bfd_get_filename (this_element),
1314 bfd *output_bfd = bfd_openw (output_name, output_target);
1317 int stat_status = 0;
1321 stat_status = bfd_stat_arch_elt (this_element, &buf);
1323 if (stat_status != 0)
1324 non_fatal (_("internal stat error on %s"),
1325 bfd_get_filename (this_element));
1328 l = (struct name_list *) xmalloc (sizeof (struct name_list));
1329 l->name = output_name;
1333 if (output_bfd == (bfd *) NULL)
1334 RETURN_NONFATAL (output_name);
1336 if (bfd_check_format (this_element, bfd_object) == true)
1337 copy_object (this_element, output_bfd);
1339 if (!bfd_close (output_bfd))
1341 bfd_nonfatal (bfd_get_filename (output_bfd));
1342 /* Error in new object file. Don't change archive. */
1346 if (preserve_dates && stat_status == 0)
1347 set_times (output_name, &buf);
1349 /* Open the newly output file and attach to our list. */
1350 output_bfd = bfd_openr (output_name, output_target);
1352 l->obfd = output_bfd;
1355 ptr = &output_bfd->next;
1357 last_element = this_element;
1359 this_element = bfd_openr_next_archived_file (ibfd, last_element);
1361 bfd_close (last_element);
1363 *ptr = (bfd *) NULL;
1365 if (!bfd_close (obfd))
1366 RETURN_NONFATAL (bfd_get_filename (obfd));
1368 if (!bfd_close (ibfd))
1369 RETURN_NONFATAL (bfd_get_filename (ibfd));
1371 /* Delete all the files that we opened. */
1372 for (l = list; l != NULL; l = l->next)
1374 bfd_close (l->obfd);
1380 /* The top-level control. */
1383 copy_file (input_filename, output_filename, input_target, output_target)
1384 const char *input_filename;
1385 const char *output_filename;
1386 const char *input_target;
1387 const char *output_target;
1392 /* To allow us to do "strip *" without dying on the first
1393 non-object file, failures are nonfatal. */
1394 ibfd = bfd_openr (input_filename, input_target);
1396 RETURN_NONFATAL (input_filename);
1398 if (bfd_check_format (ibfd, bfd_archive))
1402 /* bfd_get_target does not return the correct value until
1403 bfd_check_format succeeds. */
1404 if (output_target == NULL)
1405 output_target = bfd_get_target (ibfd);
1407 obfd = bfd_openw (output_filename, output_target);
1409 RETURN_NONFATAL (output_filename);
1411 copy_archive (ibfd, obfd, output_target);
1413 else if (bfd_check_format_matches (ibfd, bfd_object, &matching)
1414 || bfd_check_format_matches (ibfd, bfd_core, &matching))
1418 /* bfd_get_target does not return the correct value until
1419 bfd_check_format succeeds. */
1420 if (output_target == NULL)
1421 output_target = bfd_get_target (ibfd);
1423 obfd = bfd_openw (output_filename, output_target);
1425 RETURN_NONFATAL (output_filename);
1427 copy_object (ibfd, obfd);
1429 if (!bfd_close (obfd))
1430 RETURN_NONFATAL (output_filename);
1432 if (!bfd_close (ibfd))
1433 RETURN_NONFATAL (input_filename);
1437 bfd_nonfatal (input_filename);
1439 if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
1441 list_matching_formats (matching);
1449 /* Add a name to the section renaming list. */
1452 add_section_rename (old_name, new_name, flags)
1453 const char * old_name;
1454 const char * new_name;
1457 section_rename * rename;
1459 /* Check for conflicts first. */
1460 for (rename = section_rename_list; rename != NULL; rename = rename->next)
1461 if (strcmp (rename->old_name, old_name) == 0)
1463 /* Silently ignore duplicate definitions. */
1464 if (strcmp (rename->new_name, new_name) == 0
1465 && rename->flags == flags)
1468 fatal (_("Multiple renames of section %s"), old_name);
1471 rename = (section_rename *) xmalloc (sizeof (* rename));
1473 rename->old_name = old_name;
1474 rename->new_name = new_name;
1475 rename->flags = flags;
1476 rename->next = section_rename_list;
1478 section_rename_list = rename;
1481 /* Check the section rename list for a new name of the input section
1482 ISECTION. Return the new name if one is found.
1483 Also set RETURNED_FLAGS to the flags to be used for this section. */
1486 find_section_rename (ibfd, isection, returned_flags)
1487 bfd * ibfd ATTRIBUTE_UNUSED;
1489 flagword * returned_flags;
1491 const char * old_name = bfd_section_name (ibfd, isection);
1492 section_rename * rename;
1494 /* Default to using the flags of the input section. */
1495 * returned_flags = bfd_get_section_flags (ibfd, isection);
1497 for (rename = section_rename_list; rename != NULL; rename = rename->next)
1498 if (strcmp (rename->old_name, old_name) == 0)
1500 if (rename->flags != (flagword) -1)
1501 * returned_flags = rename->flags;
1503 return rename->new_name;
1509 /* Create a section in OBFD with the same
1510 name and attributes as ISECTION in IBFD. */
1513 setup_section (ibfd, isection, obfdarg)
1518 bfd *obfd = (bfd *) obfdarg;
1519 struct section_list *p;
1528 if ((bfd_get_section_flags (ibfd, isection) & SEC_DEBUGGING) != 0
1529 && (strip_symbols == STRIP_DEBUG
1530 || strip_symbols == STRIP_UNNEEDED
1531 || strip_symbols == STRIP_ALL
1532 || discard_locals == LOCALS_ALL
1533 || convert_debugging))
1536 p = find_section_list (bfd_section_name (ibfd, isection), false);
1540 if (sections_removed && p != NULL && p->remove)
1542 if (sections_copied && (p == NULL || ! p->copy))
1545 /* Get the, possibly new, name of the output section. */
1546 name = find_section_rename (ibfd, isection, & flags);
1548 osection = bfd_make_section_anyway (obfd, name);
1550 if (osection == NULL)
1556 size = bfd_section_size (ibfd, isection);
1558 size = (size + interleave - 1) / interleave;
1559 if (! bfd_set_section_size (obfd, osection, size))
1565 vma = bfd_section_vma (ibfd, isection);
1566 if (p != NULL && p->change_vma == CHANGE_MODIFY)
1568 else if (p != NULL && p->change_vma == CHANGE_SET)
1571 vma += change_section_address;
1573 if (! bfd_set_section_vma (obfd, osection, vma))
1579 lma = isection->lma;
1580 if ((p != NULL) && p->change_lma != CHANGE_IGNORE)
1582 if (p->change_lma == CHANGE_MODIFY)
1584 else if (p->change_lma == CHANGE_SET)
1590 lma += change_section_address;
1592 osection->lma = lma;
1594 /* FIXME: This is probably not enough. If we change the LMA we
1595 may have to recompute the header for the file as well. */
1596 if (bfd_set_section_alignment (obfd,
1598 bfd_section_alignment (ibfd, isection))
1601 err = _("alignment");
1605 if (p != NULL && p->set_flags)
1606 flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
1607 if (!bfd_set_section_flags (obfd, osection, flags))
1613 /* Copy merge entity size. */
1614 osection->entsize = isection->entsize;
1616 /* This used to be mangle_section; we do here to avoid using
1617 bfd_get_section_by_name since some formats allow multiple
1618 sections with the same name. */
1619 isection->output_section = osection;
1620 isection->output_offset = 0;
1622 /* Allow the BFD backend to copy any private data it understands
1623 from the input section to the output section. */
1624 if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
1626 err = _("private data");
1630 /* All went well. */
1634 non_fatal (_("%s: section `%s': error in %s: %s"),
1635 bfd_get_filename (ibfd),
1636 bfd_section_name (ibfd, isection),
1637 err, bfd_errmsg (bfd_get_error ()));
1641 /* Copy the data of input section ISECTION of IBFD
1642 to an output section with the same name in OBFD.
1643 If stripping then don't copy any relocation info. */
1646 copy_section (ibfd, isection, obfdarg)
1651 bfd *obfd = (bfd *) obfdarg;
1652 struct section_list *p;
1659 /* If we have already failed earlier on,
1660 do not keep on generating complaints now. */
1664 if ((bfd_get_section_flags (ibfd, isection) & SEC_DEBUGGING) != 0
1665 && (strip_symbols == STRIP_DEBUG
1666 || strip_symbols == STRIP_UNNEEDED
1667 || strip_symbols == STRIP_ALL
1668 || discard_locals == LOCALS_ALL
1669 || convert_debugging))
1672 p = find_section_list (bfd_section_name (ibfd, isection), false);
1674 if (sections_removed && p != NULL && p->remove)
1676 if (sections_copied && (p == NULL || ! p->copy))
1679 osection = isection->output_section;
1680 size = bfd_get_section_size_before_reloc (isection);
1682 if (size == 0 || osection == 0)
1685 /* Core files do not need to be relocated. */
1686 if (bfd_get_format (obfd) == bfd_core)
1689 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
1692 RETURN_NONFATAL (bfd_get_filename (ibfd));
1695 bfd_set_reloc (obfd, osection, (arelent **) NULL, 0);
1698 relpp = (arelent **) xmalloc (relsize);
1699 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
1701 RETURN_NONFATAL (bfd_get_filename (ibfd));
1703 if (strip_symbols == STRIP_ALL)
1705 /* Remove relocations which are not in
1706 keep_strip_specific_list. */
1707 arelent **temp_relpp;
1708 long temp_relcount = 0;
1711 temp_relpp = (arelent **) xmalloc (relsize);
1712 for (i = 0; i < relcount; i++)
1713 if (is_specified_symbol
1714 (bfd_asymbol_name (*relpp [i]->sym_ptr_ptr),
1715 keep_specific_list))
1716 temp_relpp [temp_relcount++] = relpp [i];
1717 relcount = temp_relcount;
1722 bfd_set_reloc (obfd, osection,
1723 (relcount == 0 ? (arelent **) NULL : relpp), relcount);
1726 isection->_cooked_size = isection->_raw_size;
1727 isection->reloc_done = true;
1729 if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
1730 && bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
1732 PTR memhunk = (PTR) xmalloc ((unsigned) size);
1734 if (!bfd_get_section_contents (ibfd, isection, memhunk, (file_ptr) 0,
1736 RETURN_NONFATAL (bfd_get_filename (ibfd));
1739 filter_bytes (memhunk, &size);
1741 if (!bfd_set_section_contents (obfd, osection, memhunk, (file_ptr) 0,
1743 RETURN_NONFATAL (bfd_get_filename (obfd));
1747 else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
1749 PTR memhunk = (PTR) xmalloc ((unsigned) size);
1751 /* We don't permit the user to turn off the SEC_HAS_CONTENTS
1752 flag--they can just remove the section entirely and add it
1753 back again. However, we do permit them to turn on the
1754 SEC_HAS_CONTENTS flag, and take it to mean that the section
1755 contents should be zeroed out. */
1757 memset (memhunk, 0, size);
1758 if (! bfd_set_section_contents (obfd, osection, memhunk, (file_ptr) 0,
1760 RETURN_NONFATAL (bfd_get_filename (obfd));
1765 /* Get all the sections. This is used when --gap-fill or --pad-to is
1769 get_sections (obfd, osection, secppparg)
1770 bfd *obfd ATTRIBUTE_UNUSED;
1774 asection ***secppp = (asection ***) secppparg;
1776 **secppp = osection;
1780 /* Sort sections by VMA. This is called via qsort, and is used when
1781 --gap-fill or --pad-to is used. We force non loadable or empty
1782 sections to the front, where they are easier to ignore. */
1785 compare_section_lma (arg1, arg2)
1789 const asection **sec1 = (const asection **) arg1;
1790 const asection **sec2 = (const asection **) arg2;
1791 flagword flags1, flags2;
1793 /* Sort non loadable sections to the front. */
1794 flags1 = (*sec1)->flags;
1795 flags2 = (*sec2)->flags;
1796 if ((flags1 & SEC_HAS_CONTENTS) == 0
1797 || (flags1 & SEC_LOAD) == 0)
1799 if ((flags2 & SEC_HAS_CONTENTS) != 0
1800 && (flags2 & SEC_LOAD) != 0)
1805 if ((flags2 & SEC_HAS_CONTENTS) == 0
1806 || (flags2 & SEC_LOAD) == 0)
1810 /* Sort sections by LMA. */
1811 if ((*sec1)->lma > (*sec2)->lma)
1813 else if ((*sec1)->lma < (*sec2)->lma)
1816 /* Sort sections with the same LMA by size. */
1817 if ((*sec1)->_raw_size > (*sec2)->_raw_size)
1819 else if ((*sec1)->_raw_size < (*sec2)->_raw_size)
1825 /* Mark all the symbols which will be used in output relocations with
1826 the BSF_KEEP flag so that those symbols will not be stripped.
1828 Ignore relocations which will not appear in the output file. */
1831 mark_symbols_used_in_relocations (ibfd, isection, symbolsarg)
1836 asymbol **symbols = (asymbol **) symbolsarg;
1841 /* Ignore an input section with no corresponding output section. */
1842 if (isection->output_section == NULL)
1845 relsize = bfd_get_reloc_upper_bound (ibfd, isection);
1847 bfd_fatal (bfd_get_filename (ibfd));
1852 relpp = (arelent **) xmalloc (relsize);
1853 relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, symbols);
1855 bfd_fatal (bfd_get_filename (ibfd));
1857 /* Examine each symbol used in a relocation. If it's not one of the
1858 special bfd section symbols, then mark it with BSF_KEEP. */
1859 for (i = 0; i < relcount; i++)
1861 if (*relpp[i]->sym_ptr_ptr != bfd_com_section_ptr->symbol
1862 && *relpp[i]->sym_ptr_ptr != bfd_abs_section_ptr->symbol
1863 && *relpp[i]->sym_ptr_ptr != bfd_und_section_ptr->symbol)
1864 (*relpp[i]->sym_ptr_ptr)->flags |= BSF_KEEP;
1871 /* Write out debugging information. */
1874 write_debugging_info (obfd, dhandle, symcountp, symppp)
1877 long *symcountp ATTRIBUTE_UNUSED;
1878 asymbol ***symppp ATTRIBUTE_UNUSED;
1880 if (bfd_get_flavour (obfd) == bfd_target_ieee_flavour)
1881 return write_ieee_debugging_info (obfd, dhandle);
1883 if (bfd_get_flavour (obfd) == bfd_target_coff_flavour
1884 || bfd_get_flavour (obfd) == bfd_target_elf_flavour)
1886 bfd_byte *syms, *strings;
1887 bfd_size_type symsize, stringsize;
1888 asection *stabsec, *stabstrsec;
1890 if (! write_stabs_in_sections_debugging_info (obfd, dhandle, &syms,
1895 stabsec = bfd_make_section (obfd, ".stab");
1896 stabstrsec = bfd_make_section (obfd, ".stabstr");
1898 || stabstrsec == NULL
1899 || ! bfd_set_section_size (obfd, stabsec, symsize)
1900 || ! bfd_set_section_size (obfd, stabstrsec, stringsize)
1901 || ! bfd_set_section_alignment (obfd, stabsec, 2)
1902 || ! bfd_set_section_alignment (obfd, stabstrsec, 0)
1903 || ! bfd_set_section_flags (obfd, stabsec,
1907 || ! bfd_set_section_flags (obfd, stabstrsec,
1912 non_fatal (_("%s: can't create debugging section: %s"),
1913 bfd_get_filename (obfd),
1914 bfd_errmsg (bfd_get_error ()));
1918 /* We can get away with setting the section contents now because
1919 the next thing the caller is going to do is copy over the
1920 real sections. We may someday have to split the contents
1921 setting out of this function. */
1922 if (! bfd_set_section_contents (obfd, stabsec, syms, (file_ptr) 0,
1924 || ! bfd_set_section_contents (obfd, stabstrsec, strings,
1925 (file_ptr) 0, stringsize))
1927 non_fatal (_("%s: can't set debugging section contents: %s"),
1928 bfd_get_filename (obfd),
1929 bfd_errmsg (bfd_get_error ()));
1936 non_fatal (_("%s: don't know how to write debugging information for %s"),
1937 bfd_get_filename (obfd), bfd_get_target (obfd));
1942 strip_main (argc, argv)
1946 char *input_target = NULL, *output_target = NULL;
1947 boolean show_version = false;
1949 struct section_list *p;
1950 char *output_file = NULL;
1952 while ((c = getopt_long (argc, argv, "I:O:F:K:N:R:o:sSpdgxXHhVv",
1953 strip_options, (int *) 0)) != EOF)
1958 input_target = optarg;
1961 output_target = optarg;
1964 input_target = output_target = optarg;
1967 p = find_section_list (optarg, true);
1969 sections_removed = true;
1972 strip_symbols = STRIP_ALL;
1976 case 'd': /* Historic BSD alias for -g. Used by early NetBSD. */
1977 strip_symbols = STRIP_DEBUG;
1979 case OPTION_STRIP_UNNEEDED:
1980 strip_symbols = STRIP_UNNEEDED;
1983 add_specific_symbol (optarg, &keep_specific_list);
1986 add_specific_symbol (optarg, &strip_specific_list);
1989 output_file = optarg;
1992 preserve_dates = true;
1995 discard_locals = LOCALS_ALL;
1998 discard_locals = LOCALS_START_L;
2004 show_version = true;
2007 /* We've been given a long option. */
2011 strip_usage (stdout, 0);
2013 strip_usage (stderr, 1);
2018 print_version ("strip");
2020 /* Default is to strip all symbols. */
2021 if (strip_symbols == STRIP_UNDEF
2022 && discard_locals == LOCALS_UNDEF
2023 && strip_specific_list == NULL)
2024 strip_symbols = STRIP_ALL;
2026 if (output_target == (char *) NULL)
2027 output_target = input_target;
2031 || (output_file != NULL && (i + 1) < argc))
2032 strip_usage (stderr, 1);
2034 for (; i < argc; i++)
2036 int hold_status = status;
2037 struct stat statbuf;
2042 if (stat (argv[i], &statbuf) < 0)
2044 non_fatal (_("%s: cannot stat: %s"), argv[i], strerror (errno));
2049 if (output_file != NULL)
2050 tmpname = output_file;
2052 tmpname = make_tempname (argv[i]);
2055 copy_file (argv[i], tmpname, input_target, output_target);
2059 set_times (tmpname, &statbuf);
2060 if (output_file == NULL)
2061 smart_rename (tmpname, argv[i], preserve_dates);
2062 status = hold_status;
2066 if (output_file == NULL)
2074 copy_main (argc, argv)
2078 char * binary_architecture = NULL;
2079 char *input_filename = NULL, *output_filename = NULL;
2080 char *input_target = NULL, *output_target = NULL;
2081 boolean show_version = false;
2082 boolean change_warn = true;
2084 struct section_list *p;
2085 struct stat statbuf;
2087 while ((c = getopt_long (argc, argv, "b:B:i:I:j:K:N:s:O:d:F:L:G:R:SpgxXHhVvW:",
2088 copy_options, (int *) 0)) != EOF)
2093 copy_byte = atoi (optarg);
2095 fatal (_("byte number must be non-negative"));
2099 binary_architecture = optarg;
2103 interleave = atoi (optarg);
2105 fatal (_("interleave must be positive"));
2109 case 's': /* "source" - 'I' is preferred */
2110 input_target = optarg;
2114 case 'd': /* "destination" - 'O' is preferred */
2115 output_target = optarg;
2119 input_target = output_target = optarg;
2123 p = find_section_list (optarg, true);
2125 fatal (_("%s both copied and removed"), optarg);
2127 sections_copied = true;
2131 p = find_section_list (optarg, true);
2133 fatal (_("%s both copied and removed"), optarg);
2135 sections_removed = true;
2139 strip_symbols = STRIP_ALL;
2143 strip_symbols = STRIP_DEBUG;
2146 case OPTION_STRIP_UNNEEDED:
2147 strip_symbols = STRIP_UNNEEDED;
2151 add_specific_symbol (optarg, &keep_specific_list);
2155 add_specific_symbol (optarg, &strip_specific_list);
2159 add_specific_symbol (optarg, &localize_specific_list);
2163 add_specific_symbol (optarg, &keepglobal_specific_list);
2167 add_specific_symbol (optarg, &weaken_specific_list);
2171 preserve_dates = true;
2175 discard_locals = LOCALS_ALL;
2179 discard_locals = LOCALS_START_L;
2187 show_version = true;
2194 case OPTION_ADD_SECTION:
2198 struct section_add *pa;
2203 s = strchr (optarg, '=');
2206 fatal (_("bad format for %s"), "--add-section");
2208 if (stat (s + 1, & st) < 0)
2209 fatal (_("cannot stat: %s: %s"), s + 1, strerror (errno));
2211 pa = (struct section_add *) xmalloc (sizeof (struct section_add));
2214 name = (char *) xmalloc (len + 1);
2215 strncpy (name, optarg, len);
2219 pa->filename = s + 1;
2221 pa->size = st.st_size;
2223 pa->contents = (bfd_byte *) xmalloc (pa->size);
2224 f = fopen (pa->filename, FOPEN_RB);
2227 fatal (_("cannot open: %s: %s"), pa->filename, strerror (errno));
2229 if (fread (pa->contents, 1, pa->size, f) == 0
2231 fatal (_("%s: fread failed"), pa->filename);
2235 pa->next = add_sections;
2240 case OPTION_CHANGE_START:
2241 change_start = parse_vma (optarg, "--change-start");
2244 case OPTION_CHANGE_SECTION_ADDRESS:
2245 case OPTION_CHANGE_SECTION_LMA:
2246 case OPTION_CHANGE_SECTION_VMA:
2251 char *option = NULL;
2253 enum change_action what = CHANGE_IGNORE;
2257 case OPTION_CHANGE_SECTION_ADDRESS:
2258 option = "--change-section-address";
2260 case OPTION_CHANGE_SECTION_LMA:
2261 option = "--change-section-lma";
2263 case OPTION_CHANGE_SECTION_VMA:
2264 option = "--change-section-vma";
2268 s = strchr (optarg, '=');
2271 s = strchr (optarg, '+');
2274 s = strchr (optarg, '-');
2276 fatal (_("bad format for %s"), option);
2281 name = (char *) xmalloc (len + 1);
2282 strncpy (name, optarg, len);
2285 p = find_section_list (name, true);
2287 val = parse_vma (s + 1, option);
2291 case '=': what = CHANGE_SET; break;
2292 case '-': val = - val; /* Drop through. */
2293 case '+': what = CHANGE_MODIFY; break;
2298 case OPTION_CHANGE_SECTION_ADDRESS:
2299 p->change_vma = what;
2303 case OPTION_CHANGE_SECTION_LMA:
2304 p->change_lma = what;
2308 case OPTION_CHANGE_SECTION_VMA:
2309 p->change_vma = what;
2316 case OPTION_CHANGE_ADDRESSES:
2317 change_section_address = parse_vma (optarg, "--change-addresses");
2318 change_start = change_section_address;
2321 case OPTION_CHANGE_WARNINGS:
2325 case OPTION_CHANGE_LEADING_CHAR:
2326 change_leading_char = true;
2329 case OPTION_DEBUGGING:
2330 convert_debugging = true;
2333 case OPTION_GAP_FILL:
2335 bfd_vma gap_fill_vma;
2337 gap_fill_vma = parse_vma (optarg, "--gap-fill");
2338 gap_fill = (bfd_byte) gap_fill_vma;
2339 if ((bfd_vma) gap_fill != gap_fill_vma)
2343 sprintf_vma (buff, gap_fill_vma);
2345 non_fatal (_("Warning: truncating gap-fill from 0x%s to 0x%x"),
2348 gap_fill_set = true;
2352 case OPTION_NO_CHANGE_WARNINGS:
2353 change_warn = false;
2357 pad_to = parse_vma (optarg, "--pad-to");
2361 case OPTION_REMOVE_LEADING_CHAR:
2362 remove_leading_char = true;
2365 case OPTION_REDEFINE_SYM:
2367 /* Push this redefinition onto redefine_symbol_list. */
2371 const char *nextarg;
2372 char *source, *target;
2374 s = strchr (optarg, '=');
2376 fatal (_("bad format for %s"), "--redefine-sym");
2379 source = (char *) xmalloc (len + 1);
2380 strncpy (source, optarg, len);
2384 len = strlen (nextarg);
2385 target = (char *) xmalloc (len + 1);
2386 strcpy (target, nextarg);
2388 redefine_list_append (source, target);
2395 case OPTION_SET_SECTION_FLAGS:
2401 s = strchr (optarg, '=');
2403 fatal (_("bad format for %s"), "--set-section-flags");
2406 name = (char *) xmalloc (len + 1);
2407 strncpy (name, optarg, len);
2410 p = find_section_list (name, true);
2412 p->set_flags = true;
2413 p->flags = parse_flags (s + 1);
2417 case OPTION_RENAME_SECTION:
2420 const char *eq, *fl;
2425 eq = strchr (optarg, '=');
2427 fatal (_("bad format for %s"), "--rename-section");
2431 fatal (_("bad format for %s"), "--rename-section");
2433 old_name = (char *) xmalloc (len + 1);
2434 strncpy (old_name, optarg, len);
2438 fl = strchr (eq, ',');
2441 flags = parse_flags (fl + 1);
2451 fatal (_("bad format for %s"), "--rename-section");
2453 new_name = (char *) xmalloc (len + 1);
2454 strncpy (new_name, eq, len);
2457 add_section_rename (old_name, new_name, flags);
2461 case OPTION_SET_START:
2462 set_start = parse_vma (optarg, "--set-start");
2463 set_start_set = true;
2466 case OPTION_SREC_LEN:
2467 Chunk = parse_vma (optarg, "--srec-len");
2470 case OPTION_SREC_FORCES3:
2474 case OPTION_STRIP_SYMBOLS:
2475 add_specific_symbols (optarg, &strip_specific_list);
2478 case OPTION_KEEP_SYMBOLS:
2479 add_specific_symbols (optarg, &keep_specific_list);
2482 case OPTION_LOCALIZE_SYMBOLS:
2483 add_specific_symbols (optarg, &localize_specific_list);
2486 case OPTION_KEEPGLOBAL_SYMBOLS:
2487 add_specific_symbols (optarg, &keepglobal_specific_list);
2490 case OPTION_WEAKEN_SYMBOLS:
2491 add_specific_symbols (optarg, &weaken_specific_list);
2494 case OPTION_ALT_MACH_CODE:
2495 use_alt_mach_code = atoi (optarg);
2496 if (use_alt_mach_code <= 0)
2497 fatal (_("alternate machine code index must be positive"));
2501 break; /* we've been given a long option */
2505 copy_usage (stdout, 0);
2508 copy_usage (stderr, 1);
2513 print_version ("objcopy");
2515 if (copy_byte >= interleave)
2516 fatal (_("byte number must be less than interleave"));
2518 if (optind == argc || optind + 2 < argc)
2519 copy_usage (stderr, 1);
2521 input_filename = argv[optind];
2522 if (optind + 1 < argc)
2523 output_filename = argv[optind + 1];
2525 /* Default is to strip no symbols. */
2526 if (strip_symbols == STRIP_UNDEF && discard_locals == LOCALS_UNDEF)
2527 strip_symbols = STRIP_NONE;
2529 if (output_target == (char *) NULL)
2530 output_target = input_target;
2532 if (binary_architecture != (char *) NULL)
2534 if (input_target && strcmp (input_target, "binary") == 0)
2536 const bfd_arch_info_type * temp_arch_info;
2538 temp_arch_info = bfd_scan_arch (binary_architecture);
2540 if (temp_arch_info != NULL)
2541 bfd_external_binary_architecture = temp_arch_info->arch;
2543 fatal (_("architecture %s unknown"), binary_architecture);
2547 non_fatal (_("Warning: input target 'binary' required for binary architecture parameter."));
2548 non_fatal (_(" Argument %s ignored"), binary_architecture);
2553 if (stat (input_filename, & statbuf) < 0)
2554 fatal (_("Cannot stat: %s: %s"), input_filename, strerror (errno));
2556 /* If there is no destination file then create a temp and rename
2557 the result into the input. */
2559 if (output_filename == (char *) NULL)
2561 char *tmpname = make_tempname (input_filename);
2563 copy_file (input_filename, tmpname, input_target, output_target);
2567 set_times (tmpname, &statbuf);
2568 smart_rename (tmpname, input_filename, preserve_dates);
2575 copy_file (input_filename, output_filename, input_target, output_target);
2577 if (status == 0 && preserve_dates)
2578 set_times (output_filename, &statbuf);
2583 for (p = change_sections; p != NULL; p = p->next)
2587 if (p->change_vma != CHANGE_IGNORE)
2591 sprintf_vma (buff, p->vma_val);
2593 /* xgettext:c-format */
2594 non_fatal (_("%s %s%c0x%s never used"),
2595 "--change-section-vma",
2597 p->change_vma == CHANGE_SET ? '=' : '+',
2601 if (p->change_lma != CHANGE_IGNORE)
2605 sprintf_vma (buff, p->lma_val);
2607 /* xgettext:c-format */
2608 non_fatal (_("%s %s%c0x%s never used"),
2609 "--change-section-lma",
2611 p->change_lma == CHANGE_SET ? '=' : '+',
2621 int main PARAMS ((int, char **));
2628 #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
2629 setlocale (LC_MESSAGES, "");
2631 #if defined (HAVE_SETLOCALE)
2632 setlocale (LC_CTYPE, "");
2634 bindtextdomain (PACKAGE, LOCALEDIR);
2635 textdomain (PACKAGE);
2637 program_name = argv[0];
2638 xmalloc_set_program_name (program_name);
2640 START_PROGRESS (program_name, 0);
2642 strip_symbols = STRIP_UNDEF;
2643 discard_locals = LOCALS_UNDEF;
2646 set_default_bfd_target ();
2650 int i = strlen (program_name);
2651 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2652 /* Drop the .exe suffix, if any. */
2653 if (i > 4 && FILENAME_CMP (program_name + i - 4, ".exe") == 0)
2656 program_name[i] = '\0';
2659 is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
2663 strip_main (argc, argv);
2665 copy_main (argc, argv);
2667 END_PROGRESS (program_name);