binutils/

* objcopy.c (localize_hidden): New variable.
	(OPTION_LOCALIZE_HIDDEN): New command_line_switch value.
	(copy_options): Add --localize-hidden.
	(copy_usage): Mention --localize-hidden.
	(is_hidden_symbol): New function.
	(filter_symbols): Handle localize_hidden.
	(copy_object): Call filter_symbols if localize_hidden.
	(copy_main): Handle OPTION_LOCALIZE_HIDDEN.
	* doc/binutils.texi (--localize-hidden): Document new option.

binutils/testsuite/
	* binutils-all/localize-hidden-1.s,
	* binutils-all/localize-hidden-1.d,
	* binutils-all/localize-hidden-2.s,
	* binutils-all/localize-hidden-2.d: New tests.
	* binutils-all/objcopy.exp: Run them.

binutils/ChangeLog

@@ -1,3 +1,15 @@
+2006-06-23  Richard Sandiford  <richard@codesourcery.com>
+
+	* objcopy.c (localize_hidden): New variable.
+	(OPTION_LOCALIZE_HIDDEN): New command_line_switch value.
+	(copy_options): Add --localize-hidden.
+	(copy_usage): Mention --localize-hidden.
+	(is_hidden_symbol): New function.
+	(filter_symbols): Handle localize_hidden.
+	(copy_object): Call filter_symbols if localize_hidden.
+	(copy_main): Handle OPTION_LOCALIZE_HIDDEN.
+	* doc/binutils.texi (--localize-hidden): Document new option.
+
 2006-06-23  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	* Makefile.am (ar_DEPENDENCIES, ranlib_DEPENDENCIES)

binutils/doc/binutils.texi

@@ -952,6 +952,7 @@ objcopy [@option{-F} @var{bfdname}|@option{--target=}@var{bfdname}]
         [@option{-N} @var{symbolname}|@option{--strip-symbol=}@var{symbolname}]
         [@option{--strip-unneeded-symbol=}@var{symbolname}]
         [@option{-G} @var{symbolname}|@option{--keep-global-symbol=}@var{symbolname}]
+        [@option{--localize-hidden}]
         [@option{-L} @var{symbolname}|@option{--localize-symbol=}@var{symbolname}]
         [@option{--globalize-symbol=}@var{symbolname}]
         [@option{-W} @var{symbolname}|@option{--weaken-symbol=}@var{symbolname}]
@@ -1124,6 +1125,11 @@ Keep only symbol @var{symbolname} global.  Make all other symbols local
 to the file, so that they are not visible externally.  This option may
 be given more than once.
 
+@item --localize-hidden
+In an ELF object, mark all symbols that have hidden or internal visibility
+as local.  This option applies on top of symbol-specific localization options
+such as @option{-L}.
+
 @item -L @var{symbolname}
 @itemx --localize-symbol=@var{symbolname}
 Make symbol @var{symbolname} local to the file, so that it is not

binutils/objcopy.c

@@ -190,6 +190,9 @@ static bfd_boolean remove_leading_char = FALSE;
 /* 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;
@@ -240,6 +243,7 @@ enum command_line_switch
     OPTION_STRIP_UNNEEDED_SYMBOL,
     OPTION_STRIP_UNNEEDED_SYMBOLS,
     OPTION_KEEP_SYMBOLS,
+    OPTION_LOCALIZE_HIDDEN,
     OPTION_LOCALIZE_SYMBOLS,
     OPTION_GLOBALIZE_SYMBOL,
     OPTION_GLOBALIZE_SYMBOLS,
@@ -328,6 +332,7 @@ static struct option copy_options[] =
   {"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},
@@ -428,6 +433,7 @@ copy_usage (FILE *stream, int exit_status)
      --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\
@@ -809,6 +815,24 @@ is_strip_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
   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.  */
@@ -955,7 +979,8 @@ filter_symbols (bfd *abfd, bfd *obfd, asymbol **osyms,
 	      && (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;
@@ -1532,6 +1557,7 @@ copy_object (bfd *ibfd, bfd *obfd)
       || 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
@@ -3064,6 +3090,10 @@ copy_main (int argc, char *argv[])
 	  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;

binutils/testsuite/ChangeLog

@@ -1,3 +1,11 @@
+2006-06-23  Richard Sandiford  <richard@codesourcery.com>
+
+	* binutils-all/localize-hidden-1.s,
+	* binutils-all/localize-hidden-1.d,
+	* binutils-all/localize-hidden-2.s,
+	* binutils-all/localize-hidden-2.d: New tests.
+	* binutils-all/objcopy.exp: Run them.
+
 2006-06-06  Paul Brook  <paul@codesourcery.com>
 
 	* binutils-all/arm/objdump.exp: New file.

binutils/testsuite/binutils-all/localize-hidden-1.d

@@ -0,0 +1,17 @@
+#PROG: objcopy
+#readelf: --symbols
+#objcopy: --localize-hidden
+#name: --localize-hidden test 1
+#...
+.*: 0+1200 +0 +NOTYPE +LOCAL +HIDDEN +ABS +Lhidden
+.*: 0+1300 +0 +NOTYPE +LOCAL +INTERNAL +ABS +Linternal
+.*: 0+1400 +0 +NOTYPE +LOCAL +PROTECTED +ABS +Lprotected
+.*: 0+1100 +0 +NOTYPE +LOCAL +DEFAULT +ABS +Ldefault
+.*: 0+2200 +0 +NOTYPE +LOCAL +HIDDEN +ABS +Ghidden
+.*: 0+2300 +0 +NOTYPE +LOCAL +INTERNAL +ABS +Ginternal
+.*: 0+3200 +0 +NOTYPE +LOCAL +HIDDEN +ABS +Whidden
+.*: 0+3300 +0 +NOTYPE +LOCAL +INTERNAL +ABS +Winternal
+.*: 0+2100 +0 +NOTYPE +GLOBAL +DEFAULT +ABS +Gdefault
+.*: 0+2400 +0 +NOTYPE +GLOBAL +PROTECTED +ABS +Gprotected
+.*: 0+3100 +0 +NOTYPE +WEAK +DEFAULT +ABS +Wdefault
+.*: 0+3400 +0 +NOTYPE +WEAK +PROTECTED +ABS +Wprotected

binutils/testsuite/binutils-all/localize-hidden-1.s

@@ -0,0 +1,36 @@
+	.globl		Gdefault
+	.globl		Ghidden
+	.globl		Ginternal
+	.globl		Gprotected
+
+	.weak		Wdefault
+	.weak		Whidden
+	.weak		Winternal
+	.weak		Wprotected
+
+	.hidden		Lhidden
+	.hidden		Ghidden
+	.hidden		Whidden
+
+	.internal	Linternal
+	.internal	Ginternal
+	.internal	Winternal
+
+	.protected	Lprotected
+	.protected	Gprotected
+	.protected	Wprotected
+
+	.equ		Ldefault, 0x1100
+	.equ		Lhidden, 0x1200
+	.equ		Linternal, 0x1300
+	.equ		Lprotected, 0x1400
+
+	.equ		Gdefault, 0x2100
+	.equ		Ghidden, 0x2200
+	.equ		Ginternal, 0x2300
+	.equ		Gprotected, 0x2400
+
+	.equ		Wdefault, 0x3100
+	.equ		Whidden, 0x3200
+	.equ		Winternal, 0x3300
+	.equ		Wprotected, 0x3400

binutils/testsuite/binutils-all/localize-hidden-2.d

@@ -0,0 +1,7 @@
+#PROG: objcopy
+#nm: -n
+#objcopy: --localize-hidden
+#name: --localize-hidden test 2
+#...
+0+100 A G
+#pass

binutils/testsuite/binutils-all/localize-hidden-2.s

@@ -0,0 +1,2 @@
+	.globl	G
+	.equ	G,0x100

binutils/testsuite/binutils-all/objcopy.exp

@@ -728,3 +728,8 @@ if [is_elf_format] {
 
 run_dump_test "copy-2"
 run_dump_test "copy-3"
+
+if [is_elf_format] {
+    run_dump_test "localize-hidden-1"
+}
+run_dump_test "localize-hidden-2"