/* objcopy.c -- copy object file from input to output, optionally massaging it.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003, 2004, 2005, 2006
+ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
\f
+#include "sysdep.h"
#include "bfd.h"
#include "progress.h"
-#include "bucomm.h"
#include "getopt.h"
#include "libiberty.h"
+#include "bucomm.h"
#include "budbg.h"
#include "filenames.h"
#include "fnmatch.h"
#include <sys/stat.h>
#include "libbfd.h"
-/* A list of symbols to explicitly strip out, or to keep. A linked
- list is good enough for a small number from the command line, but
- this will slow things down a lot if many symbols are being
- deleted. */
-
-struct symlist
+struct is_specified_symbol_predicate_data
{
- const char *name;
- struct symlist *next;
+ const char *name;
+ bfd_boolean found;
};
/* A list to support redefine_sym. */
/* List of sections to be renamed. */
static section_rename *section_rename_list;
-#define RETURN_NONFATAL(s) {bfd_nonfatal (s); status = 1; return;}
+#define RETURN_NONFATAL(bfd) \
+ do { \
+ status = 1; bfd_nonfatal_message (NULL, bfd, NULL, NULL); return; \
+ } while (0)
static asymbol **isympp = NULL; /* Input symbols. */
static asymbol **osympp = NULL; /* Output symbols that survive stripping. */
/* List of symbols to strip, keep, localize, keep-global, weaken,
or redefine. */
-static struct symlist *strip_specific_list = NULL;
-static struct symlist *strip_unneeded_list = NULL;
-static struct symlist *keep_specific_list = NULL;
-static struct symlist *localize_specific_list = NULL;
-static struct symlist *globalize_specific_list = NULL;
-static struct symlist *keepglobal_specific_list = NULL;
-static struct symlist *weaken_specific_list = NULL;
+static htab_t strip_specific_htab = NULL;
+static htab_t strip_unneeded_htab = NULL;
+static htab_t keep_specific_htab = NULL;
+static htab_t localize_specific_htab = NULL;
+static htab_t globalize_specific_htab = NULL;
+static htab_t keepglobal_specific_htab = NULL;
+static htab_t weaken_specific_htab = NULL;
static struct redefine_node *redefine_sym_list = NULL;
/* If this is TRUE, we weaken global symbols (set BSF_WEAK). */
static char *prefix_sections_string = 0;
static char *prefix_alloc_sections_string = 0;
+/* True if --extract-symbol was passed on the command line. */
+static bfd_boolean extract_symbol = FALSE;
+
+/* If `reverse_bytes' is nonzero, then reverse the order of every chunk
+ of <reverse_bytes> bytes within each output section. */
+static int reverse_bytes = 0;
+
+
/* 150 isn't special; it's just an arbitrary non-ASCII char value. */
enum command_line_switch
{
OPTION_READONLY_TEXT,
OPTION_WRITABLE_TEXT,
OPTION_PURE,
- OPTION_IMPURE
+ OPTION_IMPURE,
+ OPTION_EXTRACT_SYMBOL,
+ OPTION_REVERSE_BYTES
};
/* Options to handle if running as "strip". */
{"debugging", no_argument, 0, OPTION_DEBUGGING},
{"discard-all", no_argument, 0, 'x'},
{"discard-locals", no_argument, 0, 'X'},
+ {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL},
{"format", required_argument, 0, 'F'}, /* Obsolete */
{"gap-fill", required_argument, 0, OPTION_GAP_FILL},
{"globalize-symbol", required_argument, 0, OPTION_GLOBALIZE_SYMBOL},
{"remove-leading-char", no_argument, 0, OPTION_REMOVE_LEADING_CHAR},
{"remove-section", required_argument, 0, 'R'},
{"rename-section", required_argument, 0, OPTION_RENAME_SECTION},
+ {"reverse-bytes", required_argument, 0, OPTION_REVERSE_BYTES},
{"set-section-flags", required_argument, 0, OPTION_SET_SECTION_FLAGS},
{"set-start", required_argument, 0, OPTION_SET_START},
{"srec-len", required_argument, 0, OPTION_SREC_LEN},
Do not copy symbol <name> unless needed by\n\
relocations\n\
--only-keep-debug Strip everything but the debug information\n\
+ --extract-symbol Remove section contents but keep symbols\n\
-K --keep-symbol <name> Do not strip symbol <name>\n\
--keep-file-symbols Do not strip file symbol(s)\n\
--localize-hidden Turn all ELF hidden symbols into locals\n\
--rename-section <old>=<new>[,<flags>] Rename section <old> to <new>\n\
--change-leading-char Force output format's leading character style\n\
--remove-leading-char Remove leading character from global symbols\n\
+ --reverse-bytes=<num> Reverse <num> bytes at a time, in output sections with content\n\
--redefine-sym <old>=<new> Redefine symbol name <old> to <new>\n\
--redefine-syms <file> --redefine-sym for all symbol pairs \n\
listed in <file>\n\
--info List object formats & architectures supported\n\
"));
list_supported_targets (program_name, stream);
- if (exit_status == 0)
+ if (REPORT_BUGS_TO[0] && exit_status == 0)
fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
exit (exit_status);
}
"));
list_supported_targets (program_name, stream);
- if (exit_status == 0)
+ if (REPORT_BUGS_TO[0] && exit_status == 0)
fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
exit (exit_status);
}
return p;
}
-/* Add a symbol to strip_specific_list. */
+/* There is htab_hash_string but no htab_eq_string. Makes sense. */
+
+static int
+eq_string (const void *s1, const void *s2)
+{
+ return strcmp (s1, s2) == 0;
+}
+
+static htab_t
+create_symbol_htab (void)
+{
+ return htab_create_alloc (16, htab_hash_string, eq_string, NULL, xcalloc, free);
+}
static void
-add_specific_symbol (const char *name, struct symlist **list)
+create_symbol_htabs (void)
{
- struct symlist *tmp_list;
+ strip_specific_htab = create_symbol_htab ();
+ strip_unneeded_htab = create_symbol_htab ();
+ keep_specific_htab = create_symbol_htab ();
+ localize_specific_htab = create_symbol_htab ();
+ globalize_specific_htab = create_symbol_htab ();
+ keepglobal_specific_htab = create_symbol_htab ();
+ weaken_specific_htab = create_symbol_htab ();
+}
+
+/* Add a symbol to strip_specific_list. */
- tmp_list = xmalloc (sizeof (struct symlist));
- tmp_list->name = name;
- tmp_list->next = *list;
- *list = tmp_list;
+static void
+add_specific_symbol (const char *name, htab_t htab)
+{
+ *htab_find_slot (htab, name, INSERT) = (char *) name;
}
/* Add symbols listed in `filename' to strip_specific_list. */
#define IS_LINE_TERMINATOR(c) ((c) == '\n' || (c) == '\r' || (c) == '\0')
static void
-add_specific_symbols (const char *filename, struct symlist **list)
+add_specific_symbols (const char *filename, htab_t htab)
{
off_t size;
FILE * f;
* name_end = '\0';
if (name_end > name)
- add_specific_symbol (name, list);
+ add_specific_symbol (name, htab);
/* Advance line pointer to end of line. The 'eol ++' in the for
loop above will then advance us to the start of the next line. */
}
}
-/* See whether a symbol should be stripped or kept based on
- strip_specific_list and keep_symbols. */
+/* See whether a symbol should be stripped or kept
+ based on strip_specific_list and keep_symbols. */
-static bfd_boolean
-is_specified_symbol (const char *name, struct symlist *list)
+static int
+is_specified_symbol_predicate (void **slot, void *data)
{
- struct symlist *tmp_list;
+ struct is_specified_symbol_predicate_data *d = data;
+ const char *slot_name = *slot;
- if (wildcard)
+ if (*slot_name != '!')
{
- for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
- if (*(tmp_list->name) != '!')
- {
- if (!fnmatch (tmp_list->name, name, 0))
- return TRUE;
- }
- else
- {
- if (fnmatch (tmp_list->name + 1, name, 0))
- return TRUE;
- }
+ if (! fnmatch (slot_name, d->name, 0))
+ {
+ d->found = TRUE;
+ /* Stop traversal. */
+ return 0;
+ }
}
else
{
- for (tmp_list = list; tmp_list; tmp_list = tmp_list->next)
- if (strcmp (name, tmp_list->name) == 0)
- return TRUE;
+ if (fnmatch (slot_name + 1, d->name, 0))
+ {
+ d->found = TRUE;
+ /* Stop traversal. */
+ return 0;
+ }
}
- return FALSE;
+ /* Continue traversal. */
+ return 1;
+}
+
+static bfd_boolean
+is_specified_symbol (const char *name, htab_t htab)
+{
+ if (wildcard)
+ {
+ struct is_specified_symbol_predicate_data data;
+
+ data.name = name;
+ data.found = FALSE;
+
+ htab_traverse (htab, is_specified_symbol_predicate, &data);
+
+ return data.found;
+ }
+
+ return htab_find (htab, name) != NULL;
+}
+
+/* Return a pointer to the symbol used as a signature for GROUP. */
+
+static asymbol *
+group_signature (asection *group)
+{
+ bfd *abfd = group->owner;
+ Elf_Internal_Shdr *ghdr;
+
+ if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+ return NULL;
+
+ ghdr = &elf_section_data (group)->this_hdr;
+ if (ghdr->sh_link < elf_numsections (abfd))
+ {
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ Elf_Internal_Shdr *symhdr = elf_elfsections (abfd) [ghdr->sh_link];
+
+ if (symhdr->sh_type == SHT_SYMTAB
+ && ghdr->sh_info < symhdr->sh_size / bed->s->sizeof_sym)
+ return isympp[ghdr->sh_info - 1];
+ }
+ return NULL;
}
/* See if a section is being removed. */
return FALSE;
}
+ if ((bfd_get_section_flags (abfd, sec) & SEC_GROUP) != 0)
+ {
+ asymbol *gsym;
+ const char *gname;
+
+ /* PR binutils/3166
+ Group sections look like debugging sections but they are not.
+ (They have a non-zero size but they are not ALLOCated). */
+ if (strip_symbols == STRIP_NONDEBUG)
+ return TRUE;
+
+ /* PR binutils/3181
+ If we are going to strip the group signature symbol, then
+ strip the group section too. */
+ gsym = group_signature (sec);
+ if (gsym != NULL)
+ gname = gsym->name;
+ else
+ gname = sec->name;
+ if ((strip_symbols == STRIP_ALL
+ && !is_specified_symbol (gname, keep_specific_htab))
+ || is_specified_symbol (gname, strip_specific_htab))
+ return TRUE;
+ }
+
return FALSE;
}
{
asymbol **from = isyms, **to = osyms;
long src_count = 0, dst_count = 0;
- int relocatable = (abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
- == HAS_RELOC;
+ int relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0;
for (; src_count < symcount; src_count++)
{
asymbol *sym = from[src_count];
flagword flags = sym->flags;
char *name = (char *) bfd_asymbol_name (sym);
- int keep;
+ bfd_boolean keep;
+ bfd_boolean used_in_reloc = FALSE;
bfd_boolean undefined;
bfd_boolean rem_leading_char;
bfd_boolean add_leading_char;
}
if (strip_symbols == STRIP_ALL)
- keep = 0;
+ keep = FALSE;
else if ((flags & BSF_KEEP) != 0 /* Used in relocation. */
|| ((flags & BSF_SECTION_SYM) != 0
&& ((*bfd_get_section (sym)->symbol_ptr_ptr)->flags
& BSF_KEEP) != 0))
- keep = 1;
+ {
+ keep = TRUE;
+ used_in_reloc = TRUE;
+ }
else if (relocatable /* Relocatable file. */
&& (flags & (BSF_GLOBAL | BSF_WEAK)) != 0)
- keep = 1;
+ keep = TRUE;
else if (bfd_decode_symclass (sym) == 'I')
/* Global symbols in $idata sections need to be retained
even if relocatable is FALSE. External users of the
library containing the $idata section may reference these
symbols. */
- keep = 1;
+ keep = TRUE;
else if ((flags & BSF_GLOBAL) != 0 /* Global symbol. */
|| (flags & BSF_WEAK) != 0
|| undefined
else if (bfd_coff_get_comdat_section (abfd, bfd_get_section (sym)))
/* COMDAT sections store special information in local
symbols, so we cannot risk stripping any of them. */
- keep = 1;
+ keep = TRUE;
else /* Local symbol. */
keep = (strip_symbols != STRIP_UNNEEDED
&& (discard_locals != LOCALS_ALL
&& (discard_locals != LOCALS_START_L
|| ! bfd_is_local_label (abfd, sym))));
- if (keep && is_specified_symbol (name, strip_specific_list))
- keep = 0;
+ if (keep && is_specified_symbol (name, strip_specific_htab))
+ {
+ /* There are multiple ways to set 'keep' above, but if it
+ was the relocatable symbol case, then that's an error. */
+ if (used_in_reloc)
+ {
+ non_fatal (_("not stripping symbol `%s' because it is named in a relocation"), name);
+ status = 1;
+ }
+ else
+ keep = FALSE;
+ }
+
if (keep
&& !(flags & BSF_KEEP)
- && is_specified_symbol (name, strip_unneeded_list))
- keep = 0;
+ && is_specified_symbol (name, strip_unneeded_htab))
+ keep = FALSE;
+
if (!keep
&& ((keep_file_symbols && (flags & BSF_FILE))
- || is_specified_symbol (name, keep_specific_list)))
- keep = 1;
+ || is_specified_symbol (name, keep_specific_htab)))
+ keep = TRUE;
+
if (keep && is_strip_section (abfd, bfd_get_section (sym)))
- keep = 0;
+ keep = FALSE;
if (keep)
{
if ((flags & BSF_GLOBAL) != 0
- && (weaken || is_specified_symbol (name, weaken_specific_list)))
+ && (weaken || is_specified_symbol (name, weaken_specific_htab)))
{
sym->flags &= ~ BSF_GLOBAL;
sym->flags |= BSF_WEAK;
if (!undefined
&& (flags & (BSF_GLOBAL | BSF_WEAK))
- && (is_specified_symbol (name, localize_specific_list)
- || (keepglobal_specific_list != NULL
- && ! is_specified_symbol (name, keepglobal_specific_list))
+ && (is_specified_symbol (name, localize_specific_htab)
+ || (htab_elements (keepglobal_specific_htab) != 0
+ && ! is_specified_symbol (name, keepglobal_specific_htab))
|| (localize_hidden && is_hidden_symbol (sym))))
{
sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
}
if (!undefined
- && (flags & BSF_LOCAL)
- && is_specified_symbol (name, globalize_specific_list))
+ && (flags & BSF_LOCAL)
+ && is_specified_symbol (name, globalize_specific_htab))
{
sym->flags &= ~ BSF_LOCAL;
sym->flags |= BSF_GLOBAL;
if (buf[0] != '\0')
redefine_list_append (filename, &buf[0], &buf[outsym_off]);
- lineno++;
+ lineno++;
len = 0;
outsym_off = 0;
if (c == EOF)
if (bfd_stat_arch_elt (ibfd, &buf) != 0)
{
- bfd_nonfatal (bfd_get_archive_filename (ibfd));
+ bfd_nonfatal_message (bfd_get_archive_filename (ibfd), NULL, NULL, NULL);
return FALSE;
}
if (bfd_bread (cbuf, (bfd_size_type) tocopy, ibfd)
!= (bfd_size_type) tocopy)
{
- bfd_nonfatal (bfd_get_archive_filename (ibfd));
+ bfd_nonfatal_message (bfd_get_archive_filename (ibfd),
+ NULL, NULL, NULL);
free (cbuf);
return FALSE;
}
if (bfd_bwrite (cbuf, (bfd_size_type) tocopy, obfd)
!= (bfd_size_type) tocopy)
{
- bfd_nonfatal (bfd_get_filename (obfd));
+ bfd_nonfatal_message (NULL, obfd, NULL, NULL);
free (cbuf);
return FALSE;
}
if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
{
- bfd_nonfatal (bfd_get_filename (obfd));
+ bfd_nonfatal_message (NULL, obfd, NULL, NULL);
return FALSE;
}
bfd_get_archive_filename (ibfd), bfd_get_target (ibfd),
bfd_get_filename (obfd), bfd_get_target (obfd));
- if (set_start_set)
- start = set_start;
+ if (extract_symbol)
+ start = 0;
else
- start = bfd_get_start_address (ibfd);
- start += change_start;
+ {
+ if (set_start_set)
+ start = set_start;
+ else
+ start = bfd_get_start_address (ibfd);
+ start += change_start;
+ }
/* Neither the start address nor the flags
need to be set for a core file. */
if (!bfd_set_start_address (obfd, start)
|| !bfd_set_file_flags (obfd, flags))
{
- bfd_nonfatal (bfd_get_archive_filename (ibfd));
+ bfd_nonfatal_message (bfd_get_archive_filename (ibfd),
+ NULL, NULL, NULL);
return FALSE;
}
}
if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
{
- bfd_nonfatal (bfd_get_archive_filename (ibfd));
+ bfd_nonfatal_message (bfd_get_archive_filename (ibfd), NULL, NULL, NULL);
return FALSE;
}
isympp = NULL;
osympp = NULL;
+ symsize = bfd_get_symtab_upper_bound (ibfd);
+ if (symsize < 0)
+ {
+ bfd_nonfatal_message (bfd_get_archive_filename (ibfd), NULL, NULL, NULL);
+ return FALSE;
+ }
+
+ osympp = isympp = xmalloc (symsize);
+ symcount = bfd_canonicalize_symtab (ibfd, isympp);
+ if (symcount < 0)
+ {
+ bfd_nonfatal_message (NULL, ibfd, NULL, NULL);
+ return FALSE;
+ }
+
/* BFD mandates that all output sections be created and sizes set before
any output is done. Thus, we traverse all sections multiple times. */
bfd_map_over_sections (ibfd, setup_section, obfd);
error codes, so check for the most likely user error first. */
if (bfd_get_section_by_name (obfd, padd->name))
{
- non_fatal (_("can't add section '%s' - it already exists!"), padd->name);
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("can't add section '%s'"), padd->name);
return FALSE;
}
else
padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
if (padd->section == NULL)
{
- non_fatal (_("can't create section `%s': %s"),
- padd->name, bfd_errmsg (bfd_get_error ()));
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("can't create section `%s'"),
+ padd->name);
return FALSE;
}
}
if (! bfd_set_section_size (obfd, padd->section, padd->size))
{
- bfd_nonfatal (bfd_get_filename (obfd));
+ bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
return FALSE;
}
if (! bfd_set_section_vma (obfd, padd->section,
pset->vma_val))
{
- bfd_nonfatal (bfd_get_filename (obfd));
+ bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
return FALSE;
}
(obfd, padd->section,
bfd_section_alignment (obfd, padd->section)))
{
- bfd_nonfatal (bfd_get_filename (obfd));
+ bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
return FALSE;
}
}
if (gnu_debuglink_section == NULL)
{
- bfd_nonfatal (gnu_debuglink_filename);
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("cannot create debug link section `%s'"),
+ gnu_debuglink_filename);
return FALSE;
}
}
}
- if (bfd_count_sections (obfd) == 0)
- {
- non_fatal (_("there are no sections to be copied!"));
- return FALSE;
- }
-
- if (gap_fill_set || pad_to_set)
+ if (bfd_count_sections (obfd) != 0
+ && (gap_fill_set || pad_to_set))
{
asection **set;
unsigned int c, i;
if (! bfd_set_section_size (obfd, osections[i],
size + (gap_stop - gap_start)))
{
- non_fatal (_("Can't fill gap after %s: %s"),
- bfd_get_section_name (obfd, osections[i]),
- bfd_errmsg (bfd_get_error ()));
+ bfd_nonfatal_message (NULL, obfd, osections[i],
+ _("Can't fill gap after section"));
status = 1;
break;
}
if (! bfd_set_section_size (obfd, osections[c - 1],
pad_to - lma))
{
- non_fatal (_("Can't add padding to %s: %s"),
- bfd_get_section_name (obfd, osections[c - 1]),
- bfd_errmsg (bfd_get_error ()));
+ bfd_nonfatal_message (NULL, obfd, osections[c - 1],
+ _("can't add padding"));
status = 1;
}
else
/* Symbol filtering must happen after the output sections
have been created, but before their contents are set. */
dhandle = NULL;
- symsize = bfd_get_symtab_upper_bound (ibfd);
- if (symsize < 0)
- {
- bfd_nonfatal (bfd_get_archive_filename (ibfd));
- return FALSE;
- }
-
- osympp = isympp = xmalloc (symsize);
- symcount = bfd_canonicalize_symtab (ibfd, isympp);
- if (symcount < 0)
- {
- bfd_nonfatal (bfd_get_filename (ibfd));
- return FALSE;
- }
-
if (convert_debugging)
dhandle = read_debugging_info (ibfd, isympp, symcount);
|| strip_symbols == STRIP_NONDEBUG
|| discard_locals != LOCALS_UNDEF
|| localize_hidden
- || strip_specific_list != NULL
- || keep_specific_list != NULL
- || localize_specific_list != NULL
- || globalize_specific_list != NULL
- || keepglobal_specific_list != NULL
- || weaken_specific_list != NULL
+ || htab_elements (strip_specific_htab) != 0
+ || htab_elements (keep_specific_htab) != 0
+ || htab_elements (localize_specific_htab) != 0
+ || htab_elements (globalize_specific_htab) != 0
+ || htab_elements (keepglobal_specific_htab) != 0
+ || htab_elements (weaken_specific_htab) != 0
|| prefix_symbols_string
|| sections_removed
|| sections_copied
if (! bfd_set_section_contents (obfd, padd->section, padd->contents,
0, padd->size))
{
- bfd_nonfatal (bfd_get_filename (obfd));
+ bfd_nonfatal_message (NULL, obfd, padd->section, NULL);
return FALSE;
}
}
if (! bfd_fill_in_gnu_debuglink_section
(obfd, gnu_debuglink_section, gnu_debuglink_filename))
{
- bfd_nonfatal (gnu_debuglink_filename);
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("cannot fill debug link section `%s'"),
+ gnu_debuglink_filename);
return FALSE;
}
}
if (! bfd_set_section_contents (obfd, osections[i], buf,
off, now))
{
- bfd_nonfatal (bfd_get_filename (obfd));
+ bfd_nonfatal_message (NULL, obfd, osections[i], NULL);
return FALSE;
}
}
}
+ /* Do not copy backend data if --extract-symbol is passed; anything
+ that needs to look at the section contents will fail. */
+ if (extract_symbol)
+ return TRUE;
+
/* Allow the BFD backend to copy any private data it understands
from the input BFD to the output BFD. This is done last to
permit the routine to look at the filtered symbol table, which is
important for the ECOFF code at least. */
- if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
- && strip_symbols == STRIP_NONDEBUG)
- /* Do not copy the private data when creating an ELF format
- debug info file. We do not want the program headers. */
- ;
- else if (! bfd_copy_private_bfd_data (ibfd, obfd))
- {
- non_fatal (_("%s: error copying private BFD data: %s"),
- bfd_get_filename (obfd),
- bfd_errmsg (bfd_get_error ()));
+ if (! bfd_copy_private_bfd_data (ibfd, obfd))
+ {
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("error copying private BFD data"));
return FALSE;
}
return TRUE;
}
-#undef MKDIR
-#if defined (_WIN32) && !defined (__CYGWIN32__)
-#define MKDIR(DIR, MODE) mkdir (DIR)
-#else
-#define MKDIR(DIR, MODE) mkdir (DIR, MODE)
-#endif
-
/* Read each archive element in turn from IBFD, copy the
- contents to temp file, and keep the temp file handle. */
+ contents to temp file, and keep the temp file handle.
+ If 'force_output_target' is TRUE then make sure that
+ all elements in the new archive are of the type
+ 'output_target'. */
static void
-copy_archive (bfd *ibfd, bfd *obfd, const char *output_target)
+copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
+ bfd_boolean force_output_target)
{
struct name_list
{
} *list, *l;
bfd **ptr = &obfd->archive_head;
bfd *this_element;
- char *dir = make_tempname (bfd_get_filename (obfd));
+ char * dir;
/* Make a temp directory to hold the contents. */
- if (MKDIR (dir, 0700) != 0)
- fatal (_("cannot mkdir %s for archive copying (error: %s)"),
- dir, strerror (errno));
+ dir = make_tempdir (bfd_get_filename (obfd));
+ if (dir == NULL)
+ fatal (_("cannot create tempdir for archive copying (error: %s)"),
+ strerror (errno));
obfd->has_armap = ibfd->has_armap;
+ obfd->is_thin_archive = ibfd->is_thin_archive;
list = NULL;
this_element = bfd_openr_next_archived_file (ibfd, NULL);
if (!bfd_set_format (obfd, bfd_get_format (ibfd)))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ RETURN_NONFATAL (obfd);
while (!status && this_element != NULL)
{
/* If the file already exists, make another temp dir. */
if (stat (output_name, &buf) >= 0)
{
- output_name = make_tempname (output_name);
- if (MKDIR (output_name, 0700) != 0)
- fatal (_("cannot mkdir %s for archive copying (error: %s)"),
- output_name, strerror (errno));
+ output_name = make_tempdir (output_name);
+ if (output_name == NULL)
+ fatal (_("cannot create tempdir for archive copying (error: %s)"),
+ strerror (errno));
l = xmalloc (sizeof (struct name_list));
l->name = output_name;
bfd_get_filename (this_element), (char *) 0);
}
- output_bfd = bfd_openw (output_name, output_target);
if (preserve_dates)
{
stat_status = bfd_stat_arch_elt (this_element, &buf);
l->obfd = NULL;
list = l;
- if (output_bfd == NULL)
- RETURN_NONFATAL (output_name);
-
if (bfd_check_format (this_element, bfd_object))
{
+ /* PR binutils/3110: Cope with archives
+ containing multiple target types. */
+ if (force_output_target)
+ output_bfd = bfd_openw (output_name, output_target);
+ else
+ output_bfd = bfd_openw (output_name, bfd_get_target (this_element));
+
+ if (output_bfd == NULL)
+ {
+ bfd_nonfatal_message (output_name, NULL, NULL, NULL);
+ status = 1;
+ return;
+ }
+
delete = ! copy_object (this_element, output_bfd);
if (! delete
{
if (!bfd_close (output_bfd))
{
- bfd_nonfatal (bfd_get_filename (output_bfd));
+ bfd_nonfatal_message (NULL, output_bfd, NULL, NULL);
/* Error in new object file. Don't change archive. */
status = 1;
}
}
else
{
- non_fatal (_("Unable to recognise the format of the input file `%s'"),
- bfd_get_archive_filename (this_element));
+ bfd_nonfatal_message (bfd_get_archive_filename (this_element),
+ NULL, NULL,
+ _("Unable to recognise the format of file"));
+ output_bfd = bfd_openw (output_name, output_target);
copy_unknown_element:
delete = !copy_unknown_object (this_element, output_bfd);
if (!bfd_close_all_done (output_bfd))
{
- bfd_nonfatal (bfd_get_filename (output_bfd));
+ bfd_nonfatal_message (NULL, output_bfd, NULL, NULL);
/* Error in new object file. Don't change archive. */
status = 1;
}
l->obfd = output_bfd;
*ptr = output_bfd;
- ptr = &output_bfd->next;
+ ptr = &output_bfd->archive_next;
last_element = this_element;
*ptr = NULL;
if (!bfd_close (obfd))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ RETURN_NONFATAL (obfd);
if (!bfd_close (ibfd))
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ RETURN_NONFATAL (obfd);
/* Delete all the files that we opened. */
for (l = list; l != NULL; l = l->next)
non-object file, failures are nonfatal. */
ibfd = bfd_openr (input_filename, input_target);
if (ibfd == NULL)
- RETURN_NONFATAL (input_filename);
+ {
+ bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
+ status = 1;
+ return;
+ }
if (bfd_check_format (ibfd, bfd_archive))
{
+ bfd_boolean force_output_target;
bfd *obfd;
/* bfd_get_target does not return the correct value until
bfd_check_format succeeds. */
if (output_target == NULL)
- output_target = bfd_get_target (ibfd);
+ {
+ output_target = bfd_get_target (ibfd);
+ force_output_target = FALSE;
+ }
+ else
+ force_output_target = TRUE;
obfd = bfd_openw (output_filename, output_target);
if (obfd == NULL)
- RETURN_NONFATAL (output_filename);
+ {
+ bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
+ status = 1;
+ return;
+ }
- copy_archive (ibfd, obfd, output_target);
+ copy_archive (ibfd, obfd, output_target, force_output_target);
}
else if (bfd_check_format_matches (ibfd, bfd_object, &obj_matching))
{
obfd = bfd_openw (output_filename, output_target);
if (obfd == NULL)
- RETURN_NONFATAL (output_filename);
+ {
+ bfd_nonfatal_message (output_filename, NULL, NULL, NULL);
+ status = 1;
+ return;
+ }
if (! copy_object (ibfd, obfd))
status = 1;
if (!bfd_close (obfd))
- RETURN_NONFATAL (output_filename);
+ RETURN_NONFATAL (obfd);
if (!bfd_close (ibfd))
- RETURN_NONFATAL (input_filename);
-
+ RETURN_NONFATAL (ibfd);
}
else
{
if (obj_error != core_error)
bfd_set_error (obj_error);
- bfd_nonfatal (input_filename);
+ bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
if (obj_error == bfd_error_file_ambiguously_recognized)
{
static void
setup_bfd_headers (bfd *ibfd, bfd *obfd)
{
- const char *err;
-
/* Allow the BFD backend to copy any private data it understands
from the input section to the output section. */
if (! bfd_copy_private_header_data (ibfd, obfd))
{
- err = _("private header data");
- goto loser;
+ status = 1;
+ bfd_nonfatal_message (NULL, ibfd, NULL,
+ _("error in private h eader data"));
+ return;
}
/* All went well. */
return;
-
-loser:
- non_fatal (_("%s: error in %s: %s"),
- bfd_get_filename (ibfd),
- err, bfd_errmsg (bfd_get_error ()));
- status = 1;
}
/* Create a section in OBFD with the same
const char *err;
const char * name;
char *prefix = NULL;
+ bfd_boolean make_nobits;
if (is_strip_section (ibfd, isection))
return;
name = n;
}
+ make_nobits = FALSE;
if (p != NULL && p->set_flags)
flags = p->flags | (flags & (SEC_HAS_CONTENTS | SEC_RELOC));
- else if (strip_symbols == STRIP_NONDEBUG && (flags & SEC_ALLOC) != 0)
- flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
+ else if (strip_symbols == STRIP_NONDEBUG
+ && (flags & SEC_ALLOC) != 0
+ && (ibfd->xvec->flavour != bfd_target_elf_flavour
+ || elf_section_type (isection) != SHT_NOTE))
+ {
+ flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
+ if (obfd->xvec->flavour == bfd_target_elf_flavour)
+ {
+ make_nobits = TRUE;
+
+ /* Twiddle the input section flags so that it seems to
+ elf.c:copy_private_bfd_data that section flags have not
+ changed between input and output sections. This hack
+ prevents wholesale rewriting of the program headers. */
+ isection->flags &= ~(SEC_HAS_CONTENTS | SEC_LOAD);
+ }
+ }
osection = bfd_make_section_anyway_with_flags (obfd, name, flags);
if (osection == NULL)
{
- err = _("making");
+ err = _("failed to create output section");
goto loser;
}
- if (strip_symbols == STRIP_NONDEBUG
- && obfd->xvec->flavour == bfd_target_elf_flavour
- && (flags & SEC_ALLOC) != 0
- && (p == NULL || !p->set_flags))
+ if (make_nobits)
elf_section_type (osection) = SHT_NOBITS;
size = bfd_section_size (ibfd, isection);
if (copy_byte >= 0)
size = (size + interleave - 1) / interleave;
+ else if (extract_symbol)
+ size = 0;
if (! bfd_set_section_size (obfd, osection, size))
{
- err = _("size");
+ err = _("failed to set size");
goto loser;
}
else
vma += change_section_address;
- if (! bfd_set_section_vma (obfd, osection, vma))
+ if (! bfd_set_section_vma (obfd, osection, extract_symbol ? 0 : vma))
{
- err = _("vma");
+ err = _("failed to set vma");
goto loser;
}
else
lma += change_section_address;
- osection->lma = lma;
+ osection->lma = extract_symbol ? 0 : lma;
/* FIXME: This is probably not enough. If we change the LMA we
may have to recompute the header for the file as well. */
osection,
bfd_section_alignment (ibfd, isection)))
{
- err = _("alignment");
+ err = _("failed to set alignment");
goto loser;
}
bfd_get_section_by_name since some formats allow multiple
sections with the same name. */
isection->output_section = osection;
- isection->output_offset = 0;
+ isection->output_offset = extract_symbol ? vma : 0;
+
+ /* Do not copy backend data if --extract-symbol is passed; anything
+ that needs to look at the section contents will fail. */
+ if (extract_symbol)
+ return;
/* Allow the BFD backend to copy any private data it understands
from the input section to the output section. */
- if (bfd_get_flavour (ibfd) == bfd_target_elf_flavour
- && strip_symbols == STRIP_NONDEBUG)
- /* Do not copy the private data when creating an ELF format
- debug info file. We do not want the program headers. */
- ;
- else if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
- {
- err = _("private data");
+ if (!bfd_copy_private_section_data (ibfd, isection, obfd, osection))
+ {
+ err = _("failed to copy private data");
goto loser;
}
+ else if ((isection->flags & SEC_GROUP) != 0)
+ {
+ asymbol *gsym = group_signature (isection);
+
+ if (gsym != NULL)
+ gsym->flags |= BSF_KEEP;
+ }
/* All went well. */
return;
loser:
- non_fatal (_("%s: section `%s': error in %s: %s"),
- bfd_get_filename (ibfd),
- bfd_section_name (ibfd, isection),
- err, bfd_errmsg (bfd_get_error ()));
status = 1;
+ bfd_nonfatal_message (NULL, obfd, osection, err);
}
/* Copy the data of input section ISECTION of IBFD
if (relsize == -1 && bfd_get_error () == bfd_error_invalid_operation)
relsize = 0;
else
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ {
+ status = 1;
+ bfd_nonfatal_message (NULL, ibfd, isection, NULL);
+ return;
+ }
}
}
relpp = xmalloc (relsize);
relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
if (relcount < 0)
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ {
+ status = 1;
+ bfd_nonfatal_message (NULL, ibfd, isection,
+ _("relocation count is negative"));
+ return;
+ }
if (strip_symbols == STRIP_ALL)
{
temp_relpp = xmalloc (relsize);
for (i = 0; i < relcount; i++)
if (is_specified_symbol (bfd_asymbol_name (*relpp[i]->sym_ptr_ptr),
- keep_specific_list))
+ keep_specific_htab))
temp_relpp [temp_relcount++] = relpp [i];
relcount = temp_relcount;
free (relpp);
free (relpp);
}
+ if (extract_symbol)
+ return;
+
if (bfd_get_section_flags (ibfd, isection) & SEC_HAS_CONTENTS
&& bfd_get_section_flags (obfd, osection) & SEC_HAS_CONTENTS)
{
void *memhunk = xmalloc (size);
if (!bfd_get_section_contents (ibfd, isection, memhunk, 0, size))
- RETURN_NONFATAL (bfd_get_filename (ibfd));
+ {
+ status = 1;
+ bfd_nonfatal_message (NULL, ibfd, isection, NULL);
+ return;
+ }
+
+ if (reverse_bytes)
+ {
+ /* We don't handle leftover bytes (too many possible behaviors,
+ and we don't know what the user wants). The section length
+ must be a multiple of the number of bytes to swap. */
+ if ((size % reverse_bytes) == 0)
+ {
+ unsigned long i, j;
+ bfd_byte b;
+
+ for (i = 0; i < size; i += reverse_bytes)
+ for (j = 0; j < (unsigned long)(reverse_bytes / 2); j++)
+ {
+ bfd_byte *m = (bfd_byte *) memhunk;
+
+ b = m[i + j];
+ m[i + j] = m[(i + reverse_bytes) - (j + 1)];
+ m[(i + reverse_bytes) - (j + 1)] = b;
+ }
+ }
+ else
+ /* User must pad the section up in order to do this. */
+ fatal (_("cannot reverse bytes: length of section %s must be evenly divisible by %d"),
+ bfd_section_name (ibfd, isection), reverse_bytes);
+ }
if (copy_byte >= 0)
{
}
if (!bfd_set_section_contents (obfd, osection, memhunk, 0, size))
- RETURN_NONFATAL (bfd_get_filename (obfd));
-
+ {
+ status = 1;
+ bfd_nonfatal_message (NULL, obfd, osection, NULL);
+ return;
+ }
free (memhunk);
}
else if (p != NULL && p->set_flags && (p->flags & SEC_HAS_CONTENTS) != 0)
memset (memhunk, 0, size);
if (! bfd_set_section_contents (obfd, osection, memhunk, 0, size))
- RETURN_NONFATAL (bfd_get_filename (obfd));
+ {
+ status = 1;
+ bfd_nonfatal_message (NULL, obfd, osection, NULL);
+ return;
+ }
free (memhunk);
}
}
|| ! bfd_set_section_alignment (obfd, stabsec, 2)
|| ! bfd_set_section_alignment (obfd, stabstrsec, 0))
{
- non_fatal (_("%s: can't create debugging section: %s"),
- bfd_get_filename (obfd),
- bfd_errmsg (bfd_get_error ()));
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("can't create debugging section"));
return FALSE;
}
|| ! bfd_set_section_contents (obfd, stabstrsec, strings, 0,
stringsize))
{
- non_fatal (_("%s: can't set debugging section contents: %s"),
- bfd_get_filename (obfd),
- bfd_errmsg (bfd_get_error ()));
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("can't set debugging section contents"));
return FALSE;
}
return TRUE;
}
- non_fatal (_("%s: don't know how to write debugging information for %s"),
- bfd_get_filename (obfd), bfd_get_target (obfd));
+ bfd_nonfatal_message (NULL, obfd, NULL,
+ _("don't know how to write debugging information for %s"),
+ bfd_get_target (obfd));
return FALSE;
}
strip_symbols = STRIP_UNNEEDED;
break;
case 'K':
- add_specific_symbol (optarg, &keep_specific_list);
+ add_specific_symbol (optarg, keep_specific_htab);
break;
case 'N':
- add_specific_symbol (optarg, &strip_specific_list);
+ add_specific_symbol (optarg, strip_specific_htab);
break;
case 'o':
output_file = optarg;
display_info ();
return 0;
}
-
+
if (show_version)
print_version ("strip");
/* Default is to strip all symbols. */
if (strip_symbols == STRIP_UNDEF
&& discard_locals == LOCALS_UNDEF
- && strip_specific_list == NULL)
+ && htab_elements (strip_specific_htab) == 0)
strip_symbols = STRIP_ALL;
if (output_target == NULL)
It has already been checked in get_file_size(). */
stat (argv[i], &statbuf);
- if (output_file != NULL)
- tmpname = output_file;
- else
+ if (output_file == NULL || strcmp (argv[i], output_file) == 0)
tmpname = make_tempname (argv[i]);
+ else
+ tmpname = output_file;
+
+ if (tmpname == NULL)
+ {
+ bfd_nonfatal_message (argv[i], NULL, NULL,
+ _("could not create temporary file to hold stripped copy"));
+ status = 1;
+ continue;
+ }
status = 0;
copy_file (argv[i], tmpname, input_target, output_target);
{
if (preserve_dates)
set_times (tmpname, &statbuf);
- if (output_file == NULL)
- smart_rename (tmpname, argv[i], preserve_dates);
+ if (output_file != tmpname)
+ smart_rename (tmpname, output_file ? output_file : argv[i],
+ preserve_dates);
status = hold_status;
}
else
unlink_if_ordinary (tmpname);
- if (output_file == NULL)
+ if (output_file != tmpname)
free (tmpname);
}
char * binary_architecture = NULL;
char *input_filename = NULL;
char *output_filename = NULL;
+ char *tmpname;
char *input_target = NULL;
char *output_target = NULL;
bfd_boolean show_version = FALSE;
break;
case 'K':
- add_specific_symbol (optarg, &keep_specific_list);
+ add_specific_symbol (optarg, keep_specific_htab);
break;
case 'N':
- add_specific_symbol (optarg, &strip_specific_list);
+ add_specific_symbol (optarg, strip_specific_htab);
break;
case OPTION_STRIP_UNNEEDED_SYMBOL:
- add_specific_symbol (optarg, &strip_unneeded_list);
+ add_specific_symbol (optarg, strip_unneeded_htab);
break;
case 'L':
- add_specific_symbol (optarg, &localize_specific_list);
+ add_specific_symbol (optarg, localize_specific_htab);
break;
case OPTION_GLOBALIZE_SYMBOL:
- add_specific_symbol (optarg, &globalize_specific_list);
+ add_specific_symbol (optarg, globalize_specific_htab);
break;
case 'G':
- add_specific_symbol (optarg, &keepglobal_specific_list);
+ add_specific_symbol (optarg, keepglobal_specific_htab);
break;
case 'W':
- add_specific_symbol (optarg, &weaken_specific_list);
+ add_specific_symbol (optarg, weaken_specific_htab);
break;
case 'p':
break;
case OPTION_STRIP_SYMBOLS:
- add_specific_symbols (optarg, &strip_specific_list);
+ add_specific_symbols (optarg, strip_specific_htab);
break;
case OPTION_STRIP_UNNEEDED_SYMBOLS:
- add_specific_symbols (optarg, &strip_unneeded_list);
+ add_specific_symbols (optarg, strip_unneeded_htab);
break;
case OPTION_KEEP_SYMBOLS:
- add_specific_symbols (optarg, &keep_specific_list);
+ add_specific_symbols (optarg, keep_specific_htab);
break;
case OPTION_LOCALIZE_HIDDEN:
break;
case OPTION_LOCALIZE_SYMBOLS:
- add_specific_symbols (optarg, &localize_specific_list);
+ add_specific_symbols (optarg, localize_specific_htab);
break;
case OPTION_GLOBALIZE_SYMBOLS:
- add_specific_symbols (optarg, &globalize_specific_list);
+ add_specific_symbols (optarg, globalize_specific_htab);
break;
case OPTION_KEEPGLOBAL_SYMBOLS:
- add_specific_symbols (optarg, &keepglobal_specific_list);
+ add_specific_symbols (optarg, keepglobal_specific_htab);
break;
case OPTION_WEAKEN_SYMBOLS:
- add_specific_symbols (optarg, &weaken_specific_list);
+ add_specific_symbols (optarg, weaken_specific_htab);
break;
case OPTION_ALT_MACH_CODE:
bfd_flags_to_set &= ~D_PAGED;
break;
+ case OPTION_EXTRACT_SYMBOL:
+ extract_symbol = TRUE;
+ break;
+
+ case OPTION_REVERSE_BYTES:
+ {
+ int prev = reverse_bytes;
+
+ reverse_bytes = atoi (optarg);
+ if ((reverse_bytes <= 0) || ((reverse_bytes % 2) != 0))
+ fatal (_("number of bytes to reverse must be positive and even"));
+
+ if (prev && prev != reverse_bytes)
+ non_fatal (_("Warning: ignoring previous --reverse-bytes value of %d"),
+ prev);
+ break;
+ }
+
case 0:
/* We've been given a long option. */
break;
display_info ();
return 0;
}
-
+
if (show_version)
print_version ("objcopy");
/* If there is no destination file, or the source and destination files
are the same, then create a temp and rename the result into the input. */
if (output_filename == NULL || strcmp (input_filename, output_filename) == 0)
- {
- char *tmpname = make_tempname (input_filename);
-
- copy_file (input_filename, tmpname, input_target, output_target);
- if (status == 0)
- {
- if (preserve_dates)
- set_times (tmpname, &statbuf);
- smart_rename (tmpname, input_filename, preserve_dates);
- }
- else
- unlink (tmpname);
- }
+ tmpname = make_tempname (input_filename);
else
- {
- copy_file (input_filename, output_filename, input_target, output_target);
+ tmpname = output_filename;
+
+ if (tmpname == NULL)
+ fatal (_("warning: could not create temporary file whilst copying '%s', (error: %s)"),
+ input_filename, strerror (errno));
- if (status == 0 && preserve_dates)
- set_times (output_filename, &statbuf);
- else if (status != 0)
- unlink_if_ordinary (output_filename);
+ copy_file (input_filename, tmpname, input_target, output_target);
+ if (status == 0)
+ {
+ if (preserve_dates)
+ set_times (tmpname, &statbuf);
+ if (tmpname != output_filename)
+ smart_rename (tmpname, input_filename, preserve_dates);
}
+ else
+ unlink_if_ordinary (tmpname);
if (change_warn)
{
is_strip = (i >= 5 && FILENAME_CMP (program_name + i - 5, "strip") == 0);
}
+ create_symbol_htabs ();
+
if (is_strip)
strip_main (argc, argv);
else
projects / deliverable / binutils-gdb.git / blobdiff