* configure.in: Require assembler support for visibility, compiler

	support for visibility and aliases, linker support for various -z
	options.
	* Makeconfig: Remove conditional code which now is unnecessary.
	* config.h.in: Likewise.
	* config.make.in: Likewise.
	* dlfcn/Makefile: Likewise.
	* elf/Makefile: Likewise.
	* elf/dl-load.c: Likewise.
	* elf/rtld.c: Likewise.
	* include/libc-symbols.h: Likewise.
	* include/stdio.h: Likewise.
	* io/Makefile: Likewise.
	* io/fstat.c: Likewise.
	* io/fstat64.c: Likewise.
	* io/fstatat.c: Likewise.
	* io/fstatat64.c: Likewise.
	* io/lstat.c: Likewise.
	* io/lstat64.c: Likewise.
	* io/mknod.c: Likewise.
	* io/mknodat.c: Likewise.
	* io/stat.c: Likewise.
	* io/stat64.c: Likewise.
	* libio/stdio.c: Likewise.
	* nscd/Makefile: Likewise.
	* stdlib/Makefile: Likewise.
	* stdlib/atexit.c: Likewise.
	* sysdeps/generic/ldsodefs.h: Likewise.
	* sysdeps/i386/dl-machine.h: Likewise.
	* sysdeps/i386/sysdep.h: Likewise.
	* sysdeps/i386/i686/memcmp.S: Likewise.
	* sysdeps/powerpc/powerpc32/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.

11 files changed, 24 insertions, 92 deletions

diff --git a/io/Makefile b/io/Makefile
index c06d747d4a..4aadfbca01 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -90,19 +90,6 @@ CFLAGS-posix_fallocate64.c = -fexceptions
 CFLAGS-test-stat.c = -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE
 CFLAGS-test-lfs.c = -D_LARGEFILE64_SOURCE
 
-ifeq (yes,$(have-protected))
-CFLAGS-stat.c = -DHAVE_DOT_HIDDEN
-CFLAGS-fstat.c = -DHAVE_DOT_HIDDEN
-CFLAGS-lstat.c = -DHAVE_DOT_HIDDEN
-CFLAGS-mknod.c = -DHAVE_DOT_HIDDEN
-CFLAGS-stat64.c = -DHAVE_DOT_HIDDEN
-CFLAGS-fstat64.c = -DHAVE_DOT_HIDDEN
-CFLAGS-lstat64.c = -DHAVE_DOT_HIDDEN
-CFLAGS-fstatat.c = -DHAVE_DOT_HIDDEN
-CFLAGS-fstatat64.c = -DHAVE_DOT_HIDDEN
-CFLAGS-mknodat.c = -DHAVE_DOT_HIDDEN
-endif
-
 test-stat2-ARGS = Makefile . $(objpfx)test-stat2
 
 tst-statvfs-ARGS = $(objpfx)tst-statvfs tst-statvfs.c /tmp
diff --git a/io/fstat.c b/io/fstat.c
index 0f95c1a6e2..e2f9abd384 100644
--- a/io/fstat.c
+++ b/io/fstat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -47,16 +47,10 @@
 #undef fstat
 #undef __fstat
 int
+attribute_hidden
 __fstat (int fd, struct stat *buf)
 {
   return __fxstat (_STAT_VER, fd, buf);
 }
 
-weak_alias (__fstat, fstat)
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tfstat");
-asm (".hidden\t__fstat");
-#endif
+weak_hidden_alias (__fstat, fstat)
diff --git a/io/fstat64.c b/io/fstat64.c
index 79bd967d8f..fe655444b2 100644
--- a/io/fstat64.c
+++ b/io/fstat64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,13 +46,8 @@
 
 #undef fstat64
 int
+attribute_hidden
 fstat64 (int fd, struct stat64 *buf)
 {
   return __fxstat64 (_STAT_VER, fd, buf);
 }
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tfstat64");
-#endif
diff --git a/io/fstatat.c b/io/fstatat.c
index 1ac80597a0..abf083c72e 100644
--- a/io/fstatat.c
+++ b/io/fstatat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,13 +46,8 @@
 
 #undef fstatat
 int
+attribute_hidden
 fstatat (int fd, const char *file, struct stat *buf, int flag)
 {
   return __fxstatat (_STAT_VER, fd, file, buf, flag);
 }
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tfstatat");
-#endif
diff --git a/io/fstatat64.c b/io/fstatat64.c
index a14b42d42e..6fdf709af5 100644
--- a/io/fstatat64.c
+++ b/io/fstatat64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,13 +46,8 @@
 
 #undef fstatat64
 int
+attribute_hidden
 fstatat64 (int fd, const char *file, struct stat64 *buf, int flag)
 {
   return __fxstatat64 (_STAT_VER, fd, file, buf, flag);
 }
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tfstatat64");
-#endif
diff --git a/io/lstat.c b/io/lstat.c
index c4d7abe2c2..620e47877a 100644
--- a/io/lstat.c
+++ b/io/lstat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -47,16 +47,10 @@
 #undef lstat
 #undef __lstat
 int
+attribute_hidden
 __lstat (const char *file, struct stat *buf)
 {
   return __lxstat (_STAT_VER, file, buf);
 }
 
-weak_alias (__lstat, lstat)
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tlstat");
-asm (".hidden\t__lstat");
-#endif
+weak_hidden_alias (__lstat, lstat)
diff --git a/io/lstat64.c b/io/lstat64.c
index 8a994e4867..3e4ba2d972 100644
--- a/io/lstat64.c
+++ b/io/lstat64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,13 +46,8 @@
 
 #undef lstat64
 int
+attribute_hidden
 lstat64 (const char *file, struct stat64 *buf)
 {
   return __lxstat64 (_STAT_VER, file, buf);
 }
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tlstat64");
-#endif
diff --git a/io/mknod.c b/io/mknod.c
index 7d43593a25..cc5fd26105 100644
--- a/io/mknod.c
+++ b/io/mknod.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -47,16 +47,10 @@
    all callers.  */
 
 int
+attribute_hidden
 __mknod (const char *path, mode_t mode, dev_t dev)
 {
   return __xmknod (_MKNOD_VER, path, mode, &dev);
 }
 
-weak_alias (__mknod, mknod)
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tmknod");
-asm (".hidden\t__mknod");
-#endif
+weak_hidden_alias (__mknod, mknod)
diff --git a/io/mknodat.c b/io/mknodat.c
index ac515b5b48..b02ba695f9 100644
--- a/io/mknodat.c
+++ b/io/mknodat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 2001, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 2001, 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -47,14 +47,8 @@
    all callers.  */
 
 int
+attribute_hidden
 mknodat (int fd, const char *path, mode_t mode, dev_t dev)
 {
   return __xmknodat (_MKNOD_VER, fd, path, mode, &dev);
 }
-
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tmknodat");
-#endif
diff --git a/io/stat.c b/io/stat.c
index 6af604957e..6f1c28fc56 100644
--- a/io/stat.c
+++ b/io/stat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,16 +46,10 @@
 
 #undef stat
 int
+attribute_hidden
 __stat (const char *file, struct stat *buf)
 {
   return __xstat (_STAT_VER, file, buf);
 }
 
-weak_alias (__stat, stat)
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tstat");
-asm (".hidden\t__stat");
-#endif
+weak_hidden_alias (__stat, stat)
diff --git a/io/stat64.c b/io/stat64.c
index cadf1e1f1d..14e036a700 100644
--- a/io/stat64.c
+++ b/io/stat64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2001, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,13 +46,8 @@
 
 #undef stat64
 int
+attribute_hidden
 stat64 (const char *file, struct stat64 *buf)
 {
   return __xstat64 (_STAT_VER, file, buf);
 }
-
-/* Hide the symbol so that no definition but the one locally in the
-   executable or DSO is used.  */
-#ifdef HAVE_DOT_HIDDEN
-asm (".hidden\tstat64");
-#endif