static bfd_boolean pad_to_set = FALSE;
static bfd_vma pad_to;
-/* Use alternate machine code? */
-static int use_alt_mach_code = 0;
+/* Use alternative machine code? */
+static unsigned long use_alt_mach_code = 0;
/* Output BFD flags user wants to set or clear */
static flagword bfd_flags_to_set;
/* Whether to permit wildcard in symbol comparison. */
static bfd_boolean wildcard = FALSE;
+/* True if --localize-hidden is in effect. */
+static bfd_boolean localize_hidden = FALSE;
+
/* List of symbols to strip, keep, localize, keep-global, weaken,
or redefine. */
static struct symlist *strip_specific_list = NULL;
OPTION_STRIP_UNNEEDED_SYMBOL,
OPTION_STRIP_UNNEEDED_SYMBOLS,
OPTION_KEEP_SYMBOLS,
+ OPTION_LOCALIZE_HIDDEN,
OPTION_LOCALIZE_SYMBOLS,
OPTION_GLOBALIZE_SYMBOL,
OPTION_GLOBALIZE_SYMBOLS,
{"keep-global-symbols", required_argument, 0, OPTION_KEEPGLOBAL_SYMBOLS},
{"keep-symbol", required_argument, 0, 'K'},
{"keep-symbols", required_argument, 0, OPTION_KEEP_SYMBOLS},
+ {"localize-hidden", no_argument, 0, OPTION_LOCALIZE_HIDDEN},
{"localize-symbol", required_argument, 0, 'L'},
{"localize-symbols", required_argument, 0, OPTION_LOCALIZE_SYMBOLS},
{"no-adjust-warnings", no_argument, 0, OPTION_NO_CHANGE_WARNINGS},
--only-keep-debug Strip everything but the debug information\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\
-L --localize-symbol <name> Force symbol <name> to be marked as a local\n\
--globalize-symbol <name> Force symbol <name> to be marked as a global\n\
-G --keep-global-symbol <name> Localize all symbols except <name>\n\
--globalize-symbols <file> --globalize-symbol for all in <file>\n\
--keep-global-symbols <file> -G for all symbols listed in <file>\n\
--weaken-symbols <file> -W for all symbols listed in <file>\n\
- --alt-machine-code <index> Use alternate machine code for output\n\
+ --alt-machine-code <index> Use the target's <index>'th alternative machine\n\
--writable-text Mark the output text as writable\n\
--readonly-text Make the output text write protected\n\
--pure Mark the output file as demand paged\n\
return FALSE;
}
+/* Return true if SYM is a hidden symbol. */
+
+static bfd_boolean
+is_hidden_symbol (asymbol *sym)
+{
+ elf_symbol_type *elf_sym;
+
+ elf_sym = elf_symbol_from (sym->the_bfd, sym);
+ if (elf_sym != NULL)
+ switch (ELF_ST_VISIBILITY (elf_sym->internal_elf_sym.st_other))
+ {
+ case STV_HIDDEN:
+ case STV_INTERNAL:
+ return TRUE;
+ }
+ return FALSE;
+}
+
/* Choose which symbol entries to copy; put the result in OSYMS.
We don't copy in place, because that confuses the relocs.
Return the number of symbols to print. */
&& (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, keepglobal_specific_list))
+ || (localize_hidden && is_hidden_symbol (sym))))
{
sym->flags &= ~ (BSF_GLOBAL | BSF_WEAK);
sym->flags |= BSF_LOCAL;
if (pset != NULL && pset->set_flags)
flags = pset->flags | SEC_HAS_CONTENTS;
- padd->section = bfd_make_section_with_flags (obfd, padd->name, flags);
- if (padd->section == NULL)
+ /* bfd_make_section_with_flags() does not return very helpful
+ error codes, so check for the most likely user error first. */
+ if (bfd_get_section_by_name (obfd, padd->name))
{
- non_fatal (_("can't create section `%s': %s"),
- padd->name, bfd_errmsg (bfd_get_error ()));
+ non_fatal (_("can't add section '%s' - it already exists!"), 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 ()));
+ return FALSE;
+ }
+ }
if (! bfd_set_section_size (obfd, padd->section, padd->size))
{
|| strip_symbols == STRIP_UNNEEDED
|| strip_symbols == STRIP_NONDEBUG
|| discard_locals != LOCALS_UNDEF
+ || localize_hidden
|| strip_specific_list != NULL
|| keep_specific_list != NULL
|| localize_specific_list != NULL
/* Switch to the alternate machine code. We have to do this at the
very end, because we only initialize the header when we create
the first section. */
- if (use_alt_mach_code != 0
- && ! bfd_alt_mach_code (obfd, use_alt_mach_code))
- non_fatal (_("unknown alternate machine code, ignored"));
+ if (use_alt_mach_code != 0)
+ {
+ if (! bfd_alt_mach_code (obfd, use_alt_mach_code))
+ {
+ non_fatal (_("this target does not support %lu alternative machine codes"),
+ use_alt_mach_code);
+ if (bfd_get_flavour (obfd) == bfd_target_elf_flavour)
+ {
+ non_fatal (_("treating that number as an absolute e_machine value instead"));
+ elf_elfheader (obfd)->e_machine = use_alt_mach_code;
+ }
+ else
+ non_fatal (_("ignoring the alternative value"));
+ }
+ }
return TRUE;
}
add_specific_symbols (optarg, &keep_specific_list);
break;
+ case OPTION_LOCALIZE_HIDDEN:
+ localize_hidden = TRUE;
+ break;
+
case OPTION_LOCALIZE_SYMBOLS:
add_specific_symbols (optarg, &localize_specific_list);
break;
break;
case OPTION_ALT_MACH_CODE:
- use_alt_mach_code = atoi (optarg);
- if (use_alt_mach_code <= 0)
- fatal (_("alternate machine code index must be positive"));
+ use_alt_mach_code = strtoul (optarg, NULL, 0);
+ if (use_alt_mach_code == 0)
+ fatal (_("unable to parse alternative machine code"));
break;
case OPTION_PREFIX_SYMBOLS:
projects / deliverable / binutils-gdb.git / blobdiff