[v4,2/4] libio: Remove the usage of __libc_IO_vtables

diff --git a/Makerules b/Makerules
index f6071eab50..c9e9569a15 100644
--- a/Makerules
+++ b/Makerules
@@ -544,34 +544,10 @@  $(LINK.o) -shared -static-libgcc -Wl,-O1 $(sysdep-LDFLAGS) \
 	  -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
 endef
 
-ifeq (yes,$(use-default-link))
 # If the linker is good enough, we can let it use its default linker script.
 # In the long term the custom linker script will be removed.
 shlib-lds =
 shlib-lds-flags =
-else
-# binutils only position loadable notes into the first page for binaries,
-# not for shared objects
-# lld --verbose does not dump a linker script.  Use -fuse-ld=bfd.
-$(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules
-	$(LINK.o) -shared -Wl,-O1 \
-		  -nostdlib -nostartfiles -fuse-ld=bfd \
-		  $(sysdep-LDFLAGS) $(rtld-LDFLAGS) $(LDFLAGS.so) \
-		  -Wl,--verbose 2>/dev/null | \
-	  sed > $@T \
-	      -e '/^=========/,/^=========/!d;/^=========/d' \
-	      -e 's@^.*\*(\.jcr).*$$@& \
-		 PROVIDE(__start___libc_IO_vtables = .);\
-		 __libc_IO_vtables : { *(__libc_IO_vtables) }\
-		 PROVIDE(__stop___libc_IO_vtables = .);\
-		 /DISCARD/ : { *(.gnu.glibc-stub.*) }@'
-	test -s $@T
-	mv -f $@T $@
-common-generated += shlib.lds
-
-shlib-lds = $(common-objpfx)shlib.lds
-shlib-lds-flags = -T $(shlib-lds)
-endif
 
 define build-shlib
 $(build-shlib-helper) -o $@ $(shlib-lds-flags) \
diff --git a/elf/Makefile b/elf/Makefile
index 0d19964d42..b7f31cdf1c 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -595,23 +595,9 @@  $(objpfx)tst-relro-ldso.out: tst-relro-symbols.py $(..)/scripts/glibcelf.py \
 $(objpfx)tst-relro-libc.out: tst-relro-symbols.py $(..)/scripts/glibcelf.py \
   $(common-objpfx)libc.so
 	$(PYTHON) tst-relro-symbols.py $(common-objpfx)libc.so \
-	    --required=_IO_cookie_jumps \
 	    --required=_IO_file_jumps \
-	    --required=_IO_file_jumps_maybe_mmap \
-	    --required=_IO_file_jumps_mmap \
-	    --required=_IO_mem_jumps \
-	    --required=_IO_printf_buffer_as_file_jumps \
-	    --required=_IO_proc_jumps \
-	    --required=_IO_str_jumps \
 	    --required=_IO_wfile_jumps \
-	    --required=_IO_wfile_jumps_maybe_mmap \
-	    --required=_IO_wfile_jumps_mmap \
-	    --required=_IO_wmem_jumps \
-	    --required=_IO_wprintf_buffer_as_file_jumps \
-	    --required=_IO_wstr_jumps \
-	    --optional=_IO_old_cookie_jumps \
-	    --optional=_IO_old_file_jumps \
-	    --optional=_IO_old_proc_jumps \
+	    --required=__io_vtables \
 	  > $@ 2>&1; $(evaluate-test)
 
 ifeq ($(run-built-tests),yes)
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index 155781d448..37c91bb3a4 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -243,20 +243,26 @@  for linking")
    This is only necessary when defining something in assembly, or playing
    funny alias games where the size should be other than what the compiler
    thinks it is.  */
-#ifdef __ASSEMBLER__
-# define declare_object_symbol_alias(symbol, original, size) \
+#define declare_object_symbol_alias(symbol, original, size) \
   declare_object_symbol_alias_1 (symbol, original, size)
+#ifdef __ASSEMBLER__
 # define declare_object_symbol_alias_1(symbol, original, s_size) \
    strong_alias (original, symbol) ASM_LINE_SEP \
    .type C_SYMBOL_NAME (symbol), %object ASM_LINE_SEP \
    .size C_SYMBOL_NAME (symbol), s_size ASM_LINE_SEP
 #else /* Not __ASSEMBLER__.  */
 # ifdef HAVE_ASM_SET_DIRECTIVE
-#  define declare_symbol_alias_1_alias(symbol, original) \
-     ".set " __SYMBOL_PREFIX #symbol ", " __SYMBOL_PREFIX #original
+#  define declare_object_symbol_alias_1(symbol, original, size) \
+     asm (".global " __SYMBOL_PREFIX # symbol "\n" \
+	  ".type " __SYMBOL_PREFIX # symbol ", %object\n" \
+	  ".set " __SYMBOL_PREFIX #symbol ", " __SYMBOL_PREFIX original "\n" \
+	  ".size " __SYMBOL_PREFIX #symbol ", " #size "\n");
 # else
-#  define declare_symbol_alias_1_alias(symbol, original) \
-     __SYMBOL_PREFIX #symbol " = " __SYMBOL_PREFIX #original
+#  define declare_object_symbol_alias_1(symbol, original, size) \
+     asm (".global " __SYMBOL_PREFIX # symbol "\n" \
+	  ".type " __SYMBOL_PREFIX # symbol ", %object\n" \
+	  __SYMBOL_PREFIX #symbol " = " __SYMBOL_PREFIX original "\n" \
+	  ".size " __SYMBOL_PREFIX #symbol ", " #size "\n");
 # endif /* HAVE_ASM_SET_DIRECTIVE */
 #endif /* __ASSEMBLER__ */
 
diff --git a/libio/Makefile b/libio/Makefile
index 52892a282e..2877fec484 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -51,6 +51,8 @@  routines	:=							      \
 									      \
 	libc_fatal fmemopen oldfmemopen vtables
 
+gen-as-const-headers += libio-macros.sym
+
 tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc   \
 	tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-ext2 \
 	tst-fgetws tst-ungetwc1 tst-ungetwc2 tst-swscanf tst-sscanf	      \
diff --git a/libio/fileops.c b/libio/fileops.c
index b75d748539..58c9e985e4 100644
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -815,7 +815,7 @@  _IO_new_file_sync (FILE *fp)
 }
 libc_hidden_ver (_IO_new_file_sync, _IO_file_sync)
 
-static int
+int
 _IO_file_sync_mmap (FILE *fp)
 {
   if (fp->_IO_read_ptr != fp->_IO_read_end)
@@ -1109,7 +1109,7 @@  _IO_file_seekoff_mmap (FILE *fp, off64_t offset, int dir, int mode)
   return offset;
 }
 
-static off64_t
+off64_t
 _IO_file_seekoff_maybe_mmap (FILE *fp, off64_t offset, int dir,
 			     int mode)
 {
@@ -1360,7 +1360,7 @@  _IO_file_xsgetn (FILE *fp, void *data, size_t n)
 }
 libc_hidden_def (_IO_file_xsgetn)
 
-static size_t
+size_t
 _IO_file_xsgetn_mmap (FILE *fp, void *data, size_t n)
 {
   size_t have;
@@ -1405,7 +1405,7 @@  _IO_file_xsgetn_mmap (FILE *fp, void *data, size_t n)
   return s - (char *) data;
 }
 
-static size_t
+size_t
 _IO_file_xsgetn_maybe_mmap (FILE *fp, void *data, size_t n)
 {
   /* We only get here if this is the first attempt to read something.
@@ -1428,76 +1428,3 @@  versioned_symbol (libc, _IO_new_file_seekoff, _IO_file_seekoff, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_underflow, _IO_file_underflow, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_write, _IO_file_write, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_xsputn, _IO_file_xsputn, GLIBC_2_1);
-
-const struct _IO_jump_t _IO_file_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_file_finish),
-  JUMP_INIT(overflow, _IO_file_overflow),
-  JUMP_INIT(underflow, _IO_file_underflow),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_file_xsgetn),
-  JUMP_INIT(seekoff, _IO_new_file_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_new_file_setbuf),
-  JUMP_INIT(sync, _IO_new_file_sync),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_new_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_file_close),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-libc_hidden_data_def (_IO_file_jumps)
-
-const struct _IO_jump_t _IO_file_jumps_mmap libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_file_finish),
-  JUMP_INIT(overflow, _IO_file_overflow),
-  JUMP_INIT(underflow, _IO_file_underflow_mmap),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_new_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_file_xsgetn_mmap),
-  JUMP_INIT(seekoff, _IO_file_seekoff_mmap),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap),
-  JUMP_INIT(sync, _IO_file_sync_mmap),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_new_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_file_close_mmap),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-
-const struct _IO_jump_t _IO_file_jumps_maybe_mmap libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_file_finish),
-  JUMP_INIT(overflow, _IO_file_overflow),
-  JUMP_INIT(underflow, _IO_file_underflow_maybe_mmap),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_new_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_file_xsgetn_maybe_mmap),
-  JUMP_INIT(seekoff, _IO_file_seekoff_maybe_mmap),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap),
-  JUMP_INIT(sync, _IO_new_file_sync),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_new_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_file_close),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
diff --git a/libio/iofopncook.c b/libio/iofopncook.c
index d6a06c5acb..5511c07c18 100644
--- a/libio/iofopncook.c
+++ b/libio/iofopncook.c
@@ -30,7 +30,7 @@ 
 #include <shlib-compat.h>
 #include <pointer_guard.h>
 
-static ssize_t
+ssize_t
 _IO_cookie_read (FILE *fp, void *buf, ssize_t size)
 {
   struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp;
@@ -43,7 +43,7 @@  _IO_cookie_read (FILE *fp, void *buf, ssize_t size)
   return read_cb (cfile->__cookie, buf, size);
 }
 
-static ssize_t
+ssize_t
 _IO_cookie_write (FILE *fp, const void *buf, ssize_t size)
 {
   struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp;
@@ -63,7 +63,7 @@  _IO_cookie_write (FILE *fp, const void *buf, ssize_t size)
   return n;
 }
 
-static off64_t
+off64_t
 _IO_cookie_seek (FILE *fp, off64_t offset, int dir)
 {
   struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp;
@@ -77,7 +77,7 @@  _IO_cookie_seek (FILE *fp, off64_t offset, int dir)
 	  ? _IO_pos_BAD : offset);
 }
 
-static int
+int
 _IO_cookie_close (FILE *fp)
 {
   struct _IO_cookie_file *cfile = (struct _IO_cookie_file *) fp;
@@ -91,7 +91,7 @@  _IO_cookie_close (FILE *fp)
 }
 
 
-static off64_t
+off64_t
 _IO_cookie_seekoff (FILE *fp, off64_t offset, int dir, int mode)
 {
   /* We must force the fileops code to always use seek to determine
@@ -100,31 +100,6 @@  _IO_cookie_seekoff (FILE *fp, off64_t offset, int dir, int mode)
   return _IO_file_seekoff (fp, offset, dir, mode);
 }
 
-
-static const struct _IO_jump_t _IO_cookie_jumps libio_vtable = {
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_file_finish),
-  JUMP_INIT(overflow, _IO_file_overflow),
-  JUMP_INIT(underflow, _IO_file_underflow),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_default_xsgetn),
-  JUMP_INIT(seekoff, _IO_cookie_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_file_setbuf),
-  JUMP_INIT(sync, _IO_file_sync),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_cookie_read),
-  JUMP_INIT(write, _IO_cookie_write),
-  JUMP_INIT(seek, _IO_cookie_seek),
-  JUMP_INIT(close, _IO_cookie_close),
-  JUMP_INIT(stat, _IO_default_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue),
-};
-
-
 /* Copy the callbacks from SOURCE to *TARGET, with pointer
    mangling.  */
 static void
@@ -209,7 +184,7 @@  versioned_symbol (libc, _IO_fopencookie, fopencookie, GLIBC_2_2);
 
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
 
-static off64_t
+off64_t
 attribute_compat_text_section
 _IO_old_cookie_seek (FILE *fp, off64_t offset, int dir)
 {
@@ -226,29 +201,6 @@  _IO_old_cookie_seek (FILE *fp, off64_t offset, int dir)
   return (ret == -1) ? _IO_pos_BAD : ret;
 }
 
-static const struct _IO_jump_t _IO_old_cookie_jumps libio_vtable = {
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_file_finish),
-  JUMP_INIT(overflow, _IO_file_overflow),
-  JUMP_INIT(underflow, _IO_file_underflow),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_default_xsgetn),
-  JUMP_INIT(seekoff, _IO_cookie_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_file_setbuf),
-  JUMP_INIT(sync, _IO_file_sync),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_cookie_read),
-  JUMP_INIT(write, _IO_cookie_write),
-  JUMP_INIT(seek, _IO_old_cookie_seek),
-  JUMP_INIT(close, _IO_cookie_close),
-  JUMP_INIT(stat, _IO_default_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue),
-};
-
 FILE *
 attribute_compat_text_section
 _IO_old_fopencookie (void *cookie, const char *mode,
diff --git a/libio/iopopen.c b/libio/iopopen.c
index d0545ad5ea..a64033e60f 100644
--- a/libio/iopopen.c
+++ b/libio/iopopen.c
@@ -45,8 +45,6 @@  struct _IO_proc_file
 };
 typedef struct _IO_proc_file _IO_proc_file;
 
-static const struct _IO_jump_t _IO_proc_jumps;
-
 static struct _IO_proc_file *proc_file_chain;
 
 #ifdef _IO_MTSAFE_IO
@@ -297,29 +295,6 @@  _IO_new_proc_close (FILE *fp)
   return wstatus;
 }
 
-static const struct _IO_jump_t _IO_proc_jumps libio_vtable = {
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_new_file_finish),
-  JUMP_INIT(overflow, _IO_new_file_overflow),
-  JUMP_INIT(underflow, _IO_new_file_underflow),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_new_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_default_xsgetn),
-  JUMP_INIT(seekoff, _IO_new_file_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_new_file_setbuf),
-  JUMP_INIT(sync, _IO_new_file_sync),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_new_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_new_proc_close),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-
 strong_alias (_IO_new_popen, __new_popen)
 versioned_symbol (libc, _IO_new_popen, _IO_popen, GLIBC_2_1);
 versioned_symbol (libc, __new_popen, popen, GLIBC_2_1);
diff --git a/libio/libio-macros.sym b/libio/libio-macros.sym
new file mode 100644
index 0000000000..cfb5cf2841
--- /dev/null
+++ b/libio/libio-macros.sym
@@ -0,0 +1,7 @@ 
+#include <libioP.h>
+
+--
+
+IO_JUMP_T_SIZE		sizeof (struct _IO_jump_t)
+IO_FILE_JUMPS_OFFSET	sizeof (struct _IO_jump_t) * IO_FILE_JUMPS
+IO_WFILE_JUMPS_OFFSET	sizeof (struct _IO_jump_t) * IO_WFILE_JUMPS
diff --git a/libio/libioP.h b/libio/libioP.h
index 80941b763f..d777553cb0 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -469,19 +469,68 @@  extern int _IO_default_sync (FILE *) __THROW;
 extern int _IO_default_showmanyc (FILE *) __THROW;
 extern void _IO_default_imbue (FILE *, void *) __THROW;
 
-extern const struct _IO_jump_t _IO_file_jumps;
-libc_hidden_proto (_IO_file_jumps)
-extern const struct _IO_jump_t _IO_file_jumps_mmap attribute_hidden;
-extern const struct _IO_jump_t _IO_file_jumps_maybe_mmap attribute_hidden;
-extern const struct _IO_jump_t _IO_wfile_jumps;
-libc_hidden_proto (_IO_wfile_jumps)
-extern const struct _IO_jump_t _IO_wfile_jumps_mmap attribute_hidden;
-extern const struct _IO_jump_t _IO_wfile_jumps_maybe_mmap attribute_hidden;
-extern const struct _IO_jump_t _IO_old_file_jumps attribute_hidden;
-extern const struct _IO_jump_t _IO_streambuf_jumps;
-extern const struct _IO_jump_t _IO_old_proc_jumps attribute_hidden;
-extern const struct _IO_jump_t _IO_str_jumps attribute_hidden;
-extern const struct _IO_jump_t _IO_wstr_jumps attribute_hidden;
+extern int __printf_buffer_as_file_overflow (FILE *fp, int ch);
+extern size_t __printf_buffer_as_file_xsputn (FILE *fp, const void *buf,
+					      size_t len);
+extern wint_t __wprintf_buffer_as_file_overflow (FILE *fp, int ch);
+extern size_t __wprintf_buffer_as_file_xsputn (FILE *fp, const void *buf,
+					       size_t len);
+
+enum
+{
+  IO_STR_JUMPS                    = 0,
+  IO_WSTR_JUMPS                   = 1,
+  IO_FILE_JUMPS                   = 2,
+  IO_FILE_JUMPS_MMAP              = 3,
+  IO_FILE_JUMPS_MAYBE_MMAP        = 4,
+  IO_WFILE_JUMPS                  = 5,
+  IO_WFILE_JUMPS_MMAP             = 6,
+  IO_WFILE_JUMPS_MAYBE_MMAP       = 7,
+  IO_COOKIE_JUMPS                 = 8,
+  IO_PROC_JUMPS                   = 9,
+  IO_MEM_JUMPS                    = 10,
+  IO_WMEM_JUMPS                   = 11,
+  IO_PRINTF_BUFFER_AS_FILE_JUMPS  = 12,
+  IO_WPRINTF_BUFFER_AS_FILE_JUMPS = 13,
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
+  IO_OLD_FILE_JUMPS               = 14,
+  IO_OLD_PROC_JUMPS               = 15,
+  IO_OLD_COOKIED_JUMPS            = 16,
+  IO_VTABLES_NUM		  = IO_OLD_COOKIED_JUMPS + 1,
+#elif SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
+  IO_OLD_COOKIED_JUMPS            = 14,
+  IO_VTABLES_NUM		  = IO_OLD_COOKIED_JUMPS + 1,
+#else
+  IO_VTABLES_NUM		  = IO_WPRINTF_BUFFER_AS_FILE_JUMPS + 1
+#endif
+};
+#define IO_VTABLES_LEN (IO_VTABLES_NUM * sizeof (struct _IO_jump_t))
+
+extern const struct _IO_jump_t __io_vtables[] attribute_hidden;
+#define _IO_str_jumps                    (__io_vtables[IO_STR_JUMPS])
+#define _IO_wstr_jumps                   (__io_vtables[IO_WSTR_JUMPS])
+#define _IO_file_jumps                   (__io_vtables[IO_FILE_JUMPS])
+#define _IO_file_jumps_mmap              (__io_vtables[IO_FILE_JUMPS_MMAP])
+#define _IO_file_jumps_maybe_mmap        (__io_vtables[IO_FILE_JUMPS_MAYBE_MMAP])
+#define _IO_wfile_jumps                  (__io_vtables[IO_WFILE_JUMPS])
+#define _IO_wfile_jumps_mmap             (__io_vtables[IO_WFILE_JUMPS_MMAP])
+#define _IO_wfile_jumps_maybe_mmap       (__io_vtables[IO_WFILE_JUMPS_MAYBE_MMAP])
+#define _IO_cookie_jumps                 (__io_vtables[IO_COOKIE_JUMPS])
+#define _IO_proc_jumps                   (__io_vtables[IO_PROC_JUMPS])
+#define _IO_mem_jumps                    (__io_vtables[IO_MEM_JUMPS])
+#define _IO_wmem_jumps                   (__io_vtables[IO_WMEM_JUMPS])
+#define _IO_printf_buffer_as_file_jumps  (__io_vtables[IO_PRINTF_BUFFER_AS_FILE_JUMPS])
+#define _IO_wprintf_buffer_as_file_jumps (__io_vtables[IO_WPRINTF_BUFFER_AS_FILE_JUMPS])
+#define _IO_old_file_jumps               (__io_vtables[IO_OLD_FILE_JUMPS])
+#define _IO_old_proc_jumps               (__io_vtables[IO_OLD_PROC_JUMPS])
+#define _IO_old_cookie_jumps             (__io_vtables[IO_OLD_COOKIED_JUMPS])
+
+#ifdef SHARED
+# define libio_static_fn_required(name)
+#else
+# define libio_static_fn_required(name) __asm (".globl " #name);
+#endif
+
 extern int _IO_do_write (FILE *, const char *, size_t);
 libc_hidden_proto (_IO_do_write)
 extern int _IO_new_do_write (FILE *, const char *, size_t);
@@ -593,6 +642,14 @@  extern void _IO_new_file_init_internal (struct _IO_FILE_plus *)
 extern FILE* _IO_new_file_setbuf (FILE *, char *, ssize_t);
 extern FILE* _IO_file_setbuf_mmap (FILE *, char *, ssize_t);
 extern int _IO_new_file_sync (FILE *);
+extern int _IO_file_sync_mmap (FILE *) attribute_hidden;
+extern size_t  _IO_file_xsgetn_maybe_mmap (FILE *fp, void *data, size_t n)
+  attribute_hidden;
+extern size_t _IO_file_xsgetn_mmap (FILE *fp, void *data, size_t n)
+  attribute_hidden;
+extern off64_t _IO_file_seekoff_maybe_mmap (FILE *fp, off64_t offset, int dir,
+					    int mode)
+     attribute_hidden;
 extern int _IO_new_file_underflow (FILE *);
 extern int _IO_new_file_overflow (FILE *, int);
 extern off64_t _IO_new_file_seekoff (FILE *, off64_t, int, int);
@@ -625,6 +682,10 @@  extern wint_t _IO_wfile_overflow (FILE *, wint_t);
 libc_hidden_proto (_IO_wfile_overflow)
 extern off64_t _IO_wfile_seekoff (FILE *, off64_t, int, int);
 libc_hidden_proto (_IO_wfile_seekoff)
+extern wint_t _IO_wfile_underflow_maybe_mmap (FILE *fp)
+     attribute_hidden;
+extern wint_t _IO_wfile_underflow_mmap (FILE *fp)
+     attribute_hidden;
 
 /* Jumptable functions for proc_files. */
 extern FILE* _IO_proc_open (FILE *, const char *, const char *)
@@ -643,13 +704,41 @@  extern int _IO_str_overflow (FILE *, int) __THROW;
 libc_hidden_proto (_IO_str_overflow)
 extern int _IO_str_pbackfail (FILE *, int) __THROW;
 libc_hidden_proto (_IO_str_pbackfail)
-extern off64_t _IO_str_seekoff (FILE *, off64_t, int, int) __THROW;
+extern off64_t _IO_str_seekoff (FILE *, off64_t, int, int) __THROW
+ ;
 libc_hidden_proto (_IO_str_seekoff)
 extern void _IO_str_finish (FILE *, int) __THROW;
+extern int _IO_str_chk_overflow (FILE *fp, int c) __THROW
+  attribute_hidden;
+
+/* Jumptable functions for fopencookie.  */
+extern ssize_t _IO_cookie_read (FILE *fp, void *buf, ssize_t size)
+  attribute_hidden;
+extern ssize_t _IO_cookie_write (FILE *fp, const void *buf, ssize_t size)
+  attribute_hidden;
+extern off64_t _IO_cookie_seek (FILE *fp, off64_t offset, int dir)
+  attribute_hidden;
+extern int _IO_cookie_close (FILE *fp) attribute_hidden;
+extern off64_t _IO_cookie_seekoff (FILE *fp, off64_t offset, int dir, int mode)
+  attribute_hidden;
+extern off64_t _IO_old_cookie_seek (FILE *fp, off64_t offset, int dir)
+  attribute_hidden;
+
+/* Jumptable functions for obstack.  */
+extern int __IO_obstack_overflow (FILE *fp, int c) attribute_hidden;
+extern size_t __IO_obstack_xsputn (FILE *fp, const void *data, size_t n)
+  attribute_hidden;
+
+/* Jumptable functions for open_{w}memstream.  */
+extern int _IO_mem_sync (FILE* fp) __THROW attribute_hidden;
+extern void _IO_mem_finish (FILE* fp, int) __THROW attribute_hidden;
+extern int _IO_wmem_sync (FILE* fp) __THROW attribute_hidden;
+extern void _IO_wmem_finish (FILE* fp, int) __THROW attribute_hidden;
 
 /* Other strfile functions */
 struct _IO_strfile_;
 extern ssize_t _IO_str_count (FILE *) __THROW;
+extern int _IO_strn_overflow (FILE *fp, int c) __THROW attribute_hidden;
 
 /* And the wide character versions.  */
 extern void _IO_wstr_init_static (FILE *, wchar_t *, size_t, wchar_t *)
@@ -662,6 +751,10 @@  extern off64_t _IO_wstr_seekoff (FILE *, off64_t, int, int)
 extern wint_t _IO_wstr_pbackfail (FILE *, wint_t) __THROW;
 extern void _IO_wstr_finish (FILE *, int) __THROW;
 
+/* Helper functions.  */
+int _IO_helper_overflow (FILE *s, int c);
+int _IO_whelper_overflow (FILE *s, int c);
+
 /* Internal versions of v*printf that take an additional flags
    parameter.  */
 extern int __vfprintf_internal (FILE *fp, const char *format, va_list ap,
@@ -895,14 +988,6 @@  _IO_acquire_lock_fct (FILE **p)
   } while (0)
 #endif
 
-/* Collect all vtables in a special section for vtable verification.
-   These symbols cover the extent of this section.  */
-symbol_set_declare (__libc_IO_vtables)
-
-/* libio vtables need to carry this attribute so that they pass
-   validation.  */
-#define libio_vtable __attribute__ ((section ("__libc_IO_vtables")))
-
 #ifdef SHARED
 /* If equal to &_IO_vtable_check (with pointer guard protection),
    unknown vtable pointers are valid.  This function pointer is solely
@@ -937,12 +1022,9 @@  void _IO_vtable_check (void) attribute_hidden;
 static inline const struct _IO_jump_t *
 IO_validate_vtable (const struct _IO_jump_t *vtable)
 {
-  /* Fast path: The vtable pointer is within the __libc_IO_vtables
-     section.  */
-  uintptr_t section_length = __stop___libc_IO_vtables - __start___libc_IO_vtables;
   uintptr_t ptr = (uintptr_t) vtable;
-  uintptr_t offset = ptr - (uintptr_t) __start___libc_IO_vtables;
-  if (__glibc_unlikely (offset >= section_length))
+  uintptr_t offset = ptr - (uintptr_t) &__io_vtables;
+  if (__glibc_unlikely (offset >= IO_VTABLES_LEN))
     /* The vtable pointer is not in the expected section.  Use the
        slow path, which will terminate the process if necessary.  */
     _IO_vtable_check ();
diff --git a/libio/memstream.c b/libio/memstream.c
index ad5726baf8..90b42d1e0e 100644
--- a/libio/memstream.c
+++ b/libio/memstream.c
@@ -29,34 +29,6 @@  struct _IO_FILE_memstream
 };
 
 
-static int _IO_mem_sync (FILE* fp) __THROW;
-static void _IO_mem_finish (FILE* fp, int) __THROW;
-
-
-static const struct _IO_jump_t _IO_mem_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT (finish, _IO_mem_finish),
-  JUMP_INIT (overflow, _IO_str_overflow),
-  JUMP_INIT (underflow, _IO_str_underflow),
-  JUMP_INIT (uflow, _IO_default_uflow),
-  JUMP_INIT (pbackfail, _IO_str_pbackfail),
-  JUMP_INIT (xsputn, _IO_default_xsputn),
-  JUMP_INIT (xsgetn, _IO_default_xsgetn),
-  JUMP_INIT (seekoff, _IO_str_seekoff),
-  JUMP_INIT (seekpos, _IO_default_seekpos),
-  JUMP_INIT (setbuf, _IO_default_setbuf),
-  JUMP_INIT (sync, _IO_mem_sync),
-  JUMP_INIT (doallocate, _IO_default_doallocate),
-  JUMP_INIT (read, _IO_default_read),
-  JUMP_INIT (write, _IO_default_write),
-  JUMP_INIT (seek, _IO_default_seek),
-  JUMP_INIT (close, _IO_default_close),
-  JUMP_INIT (stat, _IO_default_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-
 /* Open a stream that writes into a malloc'd buffer that is expanded as
    necessary.  *BUFLOC and *SIZELOC are updated with the buffer's location
    and the number of characters written on fflush or fclose.  */
@@ -105,7 +77,7 @@  libc_hidden_def (__open_memstream)
 weak_alias (__open_memstream, open_memstream)
 
 
-static int
+int
 _IO_mem_sync (FILE *fp)
 {
   struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;
@@ -123,7 +95,7 @@  _IO_mem_sync (FILE *fp)
 }
 
 
-static void
+void
 _IO_mem_finish (FILE *fp, int dummy)
 {
   struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;
diff --git a/libio/oldfileops.c b/libio/oldfileops.c
index dd455a8ace..d6abbfdc3c 100644
--- a/libio/oldfileops.c
+++ b/libio/oldfileops.c
@@ -716,29 +716,6 @@  _IO_old_file_xsputn (FILE *f, const void *data, size_t n)
   return n - to_do;
 }
 
-
-const struct _IO_jump_t _IO_old_file_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_old_file_finish),
-  JUMP_INIT(overflow, _IO_old_file_overflow),
-  JUMP_INIT(underflow, _IO_old_file_underflow),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_old_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_default_xsgetn),
-  JUMP_INIT(seekoff, _IO_old_file_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_old_file_setbuf),
-  JUMP_INIT(sync, _IO_old_file_sync),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_old_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_file_close),
-  JUMP_INIT(stat, _IO_file_stat)
-};
-
 compat_symbol (libc, _IO_old_do_write, _IO_do_write, GLIBC_2_0);
 compat_symbol (libc, _IO_old_file_attach, _IO_file_attach, GLIBC_2_0);
 compat_symbol (libc, _IO_old_file_close_it, _IO_file_close_it, GLIBC_2_0);
diff --git a/libio/oldiopopen.c b/libio/oldiopopen.c
index aa5e379c85..b3eccc1352 100644
--- a/libio/oldiopopen.c
+++ b/libio/oldiopopen.c
@@ -208,29 +208,6 @@  _IO_old_proc_close (FILE *fp)
   return wstatus;
 }
 
-const struct _IO_jump_t _IO_old_proc_jumps libio_vtable = {
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_old_file_finish),
-  JUMP_INIT(overflow, _IO_old_file_overflow),
-  JUMP_INIT(underflow, _IO_old_file_underflow),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_default_pbackfail),
-  JUMP_INIT(xsputn, _IO_old_file_xsputn),
-  JUMP_INIT(xsgetn, _IO_default_xsgetn),
-  JUMP_INIT(seekoff, _IO_old_file_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_old_file_setbuf),
-  JUMP_INIT(sync, _IO_old_file_sync),
-  JUMP_INIT(doallocate, _IO_file_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_old_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_old_proc_close),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-
 strong_alias (_IO_old_popen, __old_popen)
 compat_symbol (libc, _IO_old_popen, _IO_popen, GLIBC_2_0);
 compat_symbol (libc, __old_popen, popen, GLIBC_2_0);
diff --git a/libio/stdio.c b/libio/stdio.c
index fd94b76b56..c7c1b85c75 100644
--- a/libio/stdio.c
+++ b/libio/stdio.c
@@ -33,3 +33,6 @@ 
 FILE *stdin = (FILE *) &_IO_2_1_stdin_;
 FILE *stdout = (FILE *) &_IO_2_1_stdout_;
 FILE *stderr = (FILE *) &_IO_2_1_stderr_;
+
+libio_static_fn_required (_IO_file_open);
+libio_static_fn_required (_IO_file_doallocate);
diff --git a/libio/strfile.h b/libio/strfile.h
index c50b34abd1..f21100f963 100644
--- a/libio/strfile.h
+++ b/libio/strfile.h
@@ -78,8 +78,6 @@  typedef struct
   wchar_t overflow_buf[64];
 } _IO_wstrnfile;
 
-extern const struct _IO_jump_t _IO_wstrn_jumps attribute_hidden;
-
 /* Initialize an _IO_strfile SF to read from narrow string STRING, and
    return the corresponding FILE object.  It is not necessary to fclose
    the FILE when it is no longer needed.  */
diff --git a/libio/strops.c b/libio/strops.c
index b5c850b626..6379a87319 100644
--- a/libio/strops.c
+++ b/libio/strops.c
@@ -352,27 +352,3 @@  _IO_str_finish (FILE *fp, int dummy)
 
   _IO_default_finish (fp, 0);
 }
-
-const struct _IO_jump_t _IO_str_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_str_finish),
-  JUMP_INIT(overflow, _IO_str_overflow),
-  JUMP_INIT(underflow, _IO_str_underflow),
-  JUMP_INIT(uflow, _IO_default_uflow),
-  JUMP_INIT(pbackfail, _IO_str_pbackfail),
-  JUMP_INIT(xsputn, _IO_default_xsputn),
-  JUMP_INIT(xsgetn, _IO_default_xsgetn),
-  JUMP_INIT(seekoff, _IO_str_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_default_setbuf),
-  JUMP_INIT(sync, _IO_default_sync),
-  JUMP_INIT(doallocate, _IO_default_doallocate),
-  JUMP_INIT(read, _IO_default_read),
-  JUMP_INIT(write, _IO_default_write),
-  JUMP_INIT(seek, _IO_default_seek),
-  JUMP_INIT(close, _IO_default_close),
-  JUMP_INIT(stat, _IO_default_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
diff --git a/libio/tst-vtables-interposed.c b/libio/tst-vtables-interposed.c
index 9068e53b88..e656f2b203 100644
--- a/libio/tst-vtables-interposed.c
+++ b/libio/tst-vtables-interposed.c
@@ -21,7 +21,12 @@ 
 /* Provide an interposed definition of the standard file handles with
    our own vtable.  stdout/stdin/stderr will not work as a result, but
    a succesful test does not print anything, so this is fine.  */
+#include "libioP.h"
+#undef _IO_file_jumps
 #define _IO_file_jumps jumps
+#undef _IO_wfile_jumps
+extern const struct _IO_jump_t _IO_wfile_jumps;
+#define _IO_wfile_jumps _IO_wfile_jumps
 #include "stdfiles.c"
 
 static int
diff --git a/libio/vtables.c b/libio/vtables.c
index 5d5906a818..3facd40a51 100644
--- a/libio/vtables.c
+++ b/libio/vtables.c
@@ -21,6 +21,472 @@ 
 #include <stdio.h>
 #include <ldsodefs.h>
 #include <pointer_guard.h>
+#include <libio-macros.h>
+
+/* Both _IO_str_* and _IO_new_file functions are pulled into every link (from
+   stdio initialization).  */
+#ifndef SHARED
+/* NB: the following directives do add pragma weak for _IO_default _* and
+   _IO_wdefault_* symbols to potentially avoid link failures, since they
+   are always used when the __io_vtables is used.  */
+# pragma weak _IO_wstr_finish
+# pragma weak _IO_wstr_overflow
+# pragma weak _IO_wstr_pbackfail
+# pragma weak _IO_wstr_seekoff
+# pragma weak _IO_wstr_underflow
+
+# pragma weak _IO_file_close
+# pragma weak _IO_file_close_mmap
+# pragma weak _IO_file_doallocate
+# pragma weak _IO_file_finish
+# pragma weak _IO_file_jumps_alias
+# pragma weak _IO_file_overflow
+# pragma weak _IO_file_read
+# pragma weak _IO_file_seek
+# pragma weak _IO_file_seekoff_maybe_mmap
+# pragma weak _IO_file_seekoff_mmap
+# pragma weak _IO_file_setbuf
+# pragma weak _IO_file_setbuf_mmap
+# pragma weak _IO_file_setbuf_mmap
+# pragma weak _IO_file_stat
+# pragma weak _IO_file_sync
+# pragma weak _IO_file_sync_mmap
+# pragma weak _IO_file_underflow
+# pragma weak _IO_file_underflow_maybe_mmap
+# pragma weak _IO_file_underflow_mmap
+# pragma weak _IO_file_xsgetn
+# pragma weak _IO_file_xsgetn_maybe_mmap
+# pragma weak _IO_file_xsgetn_mmap
+# pragma weak _IO_file_xsputn
+
+# pragma weak _IO_wfile_overflow
+# pragma weak _IO_wfile_sync
+# pragma weak _IO_wfile_underflow
+# pragma weak _IO_wfile_underflow_maybe_mmap
+# pragma weak _IO_wfile_underflow_mmap
+# pragma weak _IO_wfile_doallocate
+# pragma weak _IO_wfile_jumps_alia
+# pragma weak _IO_wfile_seekoff
+# pragma weak _IO_wfile_xsputn
+
+# pragma weak _IO_new_proc_close
+
+# pragma weak _IO_cookie_close
+# pragma weak _IO_cookie_read
+# pragma weak _IO_cookie_seek
+# pragma weak _IO_cookie_seekoff
+# pragma weak _IO_cookie_write
+
+# pragma weak _IO_mem_finish
+# pragma weak _IO_mem_sync
+
+# pragma weak _IO_wmem_finish
+# pragma weak _IO_wmem_sync
+
+# pragma weak __printf_buffer_as_file_overflow
+# pragma weak __printf_buffer_as_file_xsputn
+
+# pragma weak __wprintf_buffer_as_file_overflow
+# pragma weak __wprintf_buffer_as_file_xsputn
+#endif
+
+const struct _IO_jump_t __io_vtables[IO_VTABLES_LEN] attribute_relro =
+{
+  /* _IO_str_jumps  */
+  [IO_STR_JUMPS] =
+  {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_str_finish),
+    JUMP_INIT (overflow, _IO_str_overflow),
+    JUMP_INIT (underflow, _IO_str_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_str_pbackfail),
+    JUMP_INIT (xsputn, _IO_default_xsputn),
+    JUMP_INIT (xsgetn, _IO_default_xsgetn),
+    JUMP_INIT (seekoff, _IO_str_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_default_setbuf),
+    JUMP_INIT (sync, _IO_default_sync),
+    JUMP_INIT (doallocate, _IO_default_doallocate),
+    JUMP_INIT (read, _IO_default_read),
+    JUMP_INIT (write, _IO_default_write),
+    JUMP_INIT (seek, _IO_default_seek),
+    JUMP_INIT (close, _IO_default_close),
+    JUMP_INIT (stat, _IO_default_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_wstr_jumps  */
+  [IO_WSTR_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_wstr_finish),
+    JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow),
+    JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow),
+    JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow),
+    JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
+    JUMP_INIT (xsputn, _IO_wdefault_xsputn),
+    JUMP_INIT (xsgetn, _IO_wdefault_xsgetn),
+    JUMP_INIT (seekoff, _IO_wstr_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_default_setbuf),
+    JUMP_INIT (sync, _IO_default_sync),
+    JUMP_INIT (doallocate, _IO_wdefault_doallocate),
+    JUMP_INIT (read, _IO_default_read),
+    JUMP_INIT (write, _IO_default_write),
+    JUMP_INIT (seek, _IO_default_seek),
+    JUMP_INIT (close, _IO_default_close),
+    JUMP_INIT (stat, _IO_default_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_file_jumps  */
+  [IO_FILE_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_file_finish),
+    JUMP_INIT (overflow, _IO_file_overflow),
+    JUMP_INIT (underflow, _IO_file_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_file_xsgetn),
+    JUMP_INIT (seekoff, _IO_new_file_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_new_file_setbuf),
+    JUMP_INIT (sync, _IO_new_file_sync),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_new_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_file_close),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_file_jumps_mmap  */
+  [IO_FILE_JUMPS_MMAP] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_file_finish),
+    JUMP_INIT (overflow, _IO_file_overflow),
+    JUMP_INIT (underflow, _IO_file_underflow_mmap),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_new_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_file_xsgetn_mmap),
+    JUMP_INIT (seekoff, _IO_file_seekoff_mmap),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap),
+    JUMP_INIT (sync, _IO_file_sync_mmap),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_new_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_file_close_mmap),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_file_jumps_maybe_mmap  */
+  [IO_FILE_JUMPS_MAYBE_MMAP] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_file_finish),
+    JUMP_INIT (overflow, _IO_file_overflow),
+    JUMP_INIT (underflow, _IO_file_underflow_maybe_mmap),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_new_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_file_xsgetn_maybe_mmap),
+    JUMP_INIT (seekoff, _IO_file_seekoff_maybe_mmap),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, (_IO_setbuf_t) _IO_file_setbuf_mmap),
+    JUMP_INIT (sync, _IO_new_file_sync),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_new_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_file_close),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_wfile_jumps  */
+  [IO_WFILE_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_new_file_finish),
+    JUMP_INIT (overflow, (_IO_overflow_t) _IO_wfile_overflow),
+    JUMP_INIT (underflow, (_IO_underflow_t) _IO_wfile_underflow),
+    JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow),
+    JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
+    JUMP_INIT (xsputn, _IO_wfile_xsputn),
+    JUMP_INIT (xsgetn, _IO_file_xsgetn),
+    JUMP_INIT (seekoff, _IO_wfile_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_new_file_setbuf),
+    JUMP_INIT (sync, (_IO_sync_t) _IO_wfile_sync),
+    JUMP_INIT (doallocate, _IO_wfile_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_new_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_file_close),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_wfile_jumps_mmap  */
+  [IO_WFILE_JUMPS_MMAP] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_new_file_finish),
+    JUMP_INIT (overflow, (_IO_overflow_t) _IO_wfile_overflow),
+    JUMP_INIT (underflow, (_IO_underflow_t) _IO_wfile_underflow_mmap),
+    JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow),
+    JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
+    JUMP_INIT (xsputn, _IO_wfile_xsputn),
+    JUMP_INIT (xsgetn, _IO_file_xsgetn),
+    JUMP_INIT (seekoff, _IO_wfile_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_file_setbuf_mmap),
+    JUMP_INIT (sync, (_IO_sync_t) _IO_wfile_sync),
+    JUMP_INIT (doallocate, _IO_wfile_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_new_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_file_close_mmap),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_wfile_jumps_maybe_mmap  */
+  [IO_WFILE_JUMPS_MAYBE_MMAP] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_new_file_finish),
+    JUMP_INIT (overflow, (_IO_overflow_t) _IO_wfile_overflow),
+    JUMP_INIT (underflow, (_IO_underflow_t) _IO_wfile_underflow_maybe_mmap),
+    JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow),
+    JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
+    JUMP_INIT (xsputn, _IO_wfile_xsputn),
+    JUMP_INIT (xsgetn, _IO_file_xsgetn),
+    JUMP_INIT (seekoff, _IO_wfile_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_file_setbuf_mmap),
+    JUMP_INIT (sync, (_IO_sync_t) _IO_wfile_sync),
+    JUMP_INIT (doallocate, _IO_wfile_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_new_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_file_close),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_cookie_jumps  */
+  [IO_COOKIE_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_file_finish),
+    JUMP_INIT (overflow, _IO_file_overflow),
+    JUMP_INIT (underflow, _IO_file_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_default_xsgetn),
+    JUMP_INIT (seekoff, _IO_cookie_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_file_setbuf),
+    JUMP_INIT (sync, _IO_file_sync),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_cookie_read),
+    JUMP_INIT (write, _IO_cookie_write),
+    JUMP_INIT (seek, _IO_cookie_seek),
+    JUMP_INIT (close, _IO_cookie_close),
+    JUMP_INIT (stat, _IO_default_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue),
+  },
+  /* _IO_proc_jumps  */
+  [IO_PROC_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_new_file_finish),
+    JUMP_INIT (overflow, _IO_new_file_overflow),
+    JUMP_INIT (underflow, _IO_new_file_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_new_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_default_xsgetn),
+    JUMP_INIT (seekoff, _IO_new_file_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_new_file_setbuf),
+    JUMP_INIT (sync, _IO_new_file_sync),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_new_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_new_proc_close),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_mem_jumps  */
+  [IO_MEM_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_mem_finish),
+    JUMP_INIT (overflow, _IO_str_overflow),
+    JUMP_INIT (underflow, _IO_str_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_str_pbackfail),
+    JUMP_INIT (xsputn, _IO_default_xsputn),
+    JUMP_INIT (xsgetn, _IO_default_xsgetn),
+    JUMP_INIT (seekoff, _IO_str_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_default_setbuf),
+    JUMP_INIT (sync, _IO_mem_sync),
+    JUMP_INIT (doallocate, _IO_default_doallocate),
+    JUMP_INIT (read, _IO_default_read),
+    JUMP_INIT (write, _IO_default_write),
+    JUMP_INIT (seek, _IO_default_seek),
+    JUMP_INIT (close, _IO_default_close),
+    JUMP_INIT (stat, _IO_default_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  /* _IO_wmem_jumps  */
+  [IO_WMEM_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_wmem_finish),
+    JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow),
+    JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow),
+    JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow),
+    JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
+    JUMP_INIT (xsputn, _IO_wdefault_xsputn),
+    JUMP_INIT (xsgetn, _IO_wdefault_xsgetn),
+    JUMP_INIT (seekoff, _IO_wstr_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_default_setbuf),
+    JUMP_INIT (sync, _IO_wmem_sync),
+    JUMP_INIT (doallocate, _IO_wdefault_doallocate),
+    JUMP_INIT (read, _IO_default_read),
+    JUMP_INIT (write, _IO_default_write),
+    JUMP_INIT (seek, _IO_default_seek),
+    JUMP_INIT (close, _IO_default_close),
+    JUMP_INIT (stat, _IO_default_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+  [IO_PRINTF_BUFFER_AS_FILE_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, NULL),
+    JUMP_INIT (overflow, __printf_buffer_as_file_overflow),
+    JUMP_INIT (underflow, NULL),
+    JUMP_INIT (uflow, NULL),
+    JUMP_INIT (pbackfail, NULL),
+    JUMP_INIT (xsputn, __printf_buffer_as_file_xsputn),
+    JUMP_INIT (xsgetn, NULL),
+    JUMP_INIT (seekoff, NULL),
+    JUMP_INIT (seekpos, NULL),
+    JUMP_INIT (setbuf, NULL),
+    JUMP_INIT (sync, NULL),
+    JUMP_INIT (doallocate, NULL),
+    JUMP_INIT (read, NULL),
+    JUMP_INIT (write, NULL),
+    JUMP_INIT (seek, NULL),
+    JUMP_INIT (close, NULL),
+    JUMP_INIT (stat, NULL),
+    JUMP_INIT (showmanyc, NULL),
+    JUMP_INIT (imbue, NULL)
+  },
+  [IO_WPRINTF_BUFFER_AS_FILE_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, NULL),
+    JUMP_INIT (overflow, (_IO_overflow_t) __wprintf_buffer_as_file_overflow),
+    JUMP_INIT (underflow, NULL),
+    JUMP_INIT (uflow, NULL),
+    JUMP_INIT (pbackfail, NULL),
+    JUMP_INIT (xsputn, __wprintf_buffer_as_file_xsputn),
+    JUMP_INIT (xsgetn, NULL),
+    JUMP_INIT (seekoff, NULL),
+    JUMP_INIT (seekpos, NULL),
+    JUMP_INIT (setbuf, NULL),
+    JUMP_INIT (sync, NULL),
+    JUMP_INIT (doallocate, NULL),
+    JUMP_INIT (read, NULL),
+    JUMP_INIT (write, NULL),
+    JUMP_INIT (seek, NULL),
+    JUMP_INIT (close, NULL),
+    JUMP_INIT (stat, NULL),
+    JUMP_INIT (showmanyc, NULL),
+    JUMP_INIT (imbue, NULL)
+  },
+
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
+  /* _IO_old_file_jumps  */
+  [IO_OLD_FILE_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_old_file_finish),
+    JUMP_INIT (overflow, _IO_old_file_overflow),
+    JUMP_INIT (underflow, _IO_old_file_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_old_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_default_xsgetn),
+    JUMP_INIT (seekoff, _IO_old_file_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_old_file_setbuf),
+    JUMP_INIT (sync, _IO_old_file_sync),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_old_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_file_close),
+    JUMP_INIT (stat, _IO_file_stat)
+  },
+  /*  _IO_old_proc_jumps  */
+  [IO_OLD_PROC_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_old_file_finish),
+    JUMP_INIT (overflow, _IO_old_file_overflow),
+    JUMP_INIT (underflow, _IO_old_file_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_old_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_default_xsgetn),
+    JUMP_INIT (seekoff, _IO_old_file_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_old_file_setbuf),
+    JUMP_INIT (sync, _IO_old_file_sync),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_file_read),
+    JUMP_INIT (write, _IO_old_file_write),
+    JUMP_INIT (seek, _IO_file_seek),
+    JUMP_INIT (close, _IO_old_proc_close),
+    JUMP_INIT (stat, _IO_file_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue)
+  },
+#endif
+
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
+  /* _IO_old_cookie_jumps  */
+  [IO_OLD_COOKIED_JUMPS] = {
+    JUMP_INIT_DUMMY,
+    JUMP_INIT (finish, _IO_file_finish),
+    JUMP_INIT (overflow, _IO_file_overflow),
+    JUMP_INIT (underflow, _IO_file_underflow),
+    JUMP_INIT (uflow, _IO_default_uflow),
+    JUMP_INIT (pbackfail, _IO_default_pbackfail),
+    JUMP_INIT (xsputn, _IO_file_xsputn),
+    JUMP_INIT (xsgetn, _IO_default_xsgetn),
+    JUMP_INIT (seekoff, _IO_cookie_seekoff),
+    JUMP_INIT (seekpos, _IO_default_seekpos),
+    JUMP_INIT (setbuf, _IO_file_setbuf),
+    JUMP_INIT (sync, _IO_file_sync),
+    JUMP_INIT (doallocate, _IO_file_doallocate),
+    JUMP_INIT (read, _IO_cookie_read),
+    JUMP_INIT (write, _IO_cookie_write),
+    JUMP_INIT (seek, _IO_old_cookie_seek),
+    JUMP_INIT (close, _IO_cookie_close),
+    JUMP_INIT (stat, _IO_default_stat),
+    JUMP_INIT (showmanyc, _IO_default_showmanyc),
+    JUMP_INIT (imbue, _IO_default_imbue),
+  },
+#endif
+};
 
 #ifdef SHARED
 
@@ -82,3 +548,15 @@  check_stdfiles_vtables (void)
     IO_set_accept_foreign_vtables (&_IO_vtable_check);
 }
 #endif
+
+#define STR(s)  XSTR(s)
+#define XSTR(s) #s
+
+#undef _IO_file_jumps
+#define _IO_file_jumps_alias  "__io_vtables + " STR(IO_FILE_JUMPS_OFFSET)
+declare_object_symbol_alias (_IO_file_jumps, _IO_file_jumps_alias,
+			     IO_JUMP_T_SIZE)
+#undef _IO_wfile_jumps
+#define _IO_wfile_jumps_alias  "__io_vtables + " STR(IO_WFILE_JUMPS_OFFSET)
+declare_object_symbol_alias (_IO_wfile_jumps, _IO_wfile_jumps_alias,
+			     IO_JUMP_T_SIZE)
diff --git a/libio/wfileops.c b/libio/wfileops.c
index cecea21c1c..f16f6db1c3 100644
--- a/libio/wfileops.c
+++ b/libio/wfileops.c
@@ -328,7 +328,7 @@  _IO_wfile_underflow (FILE *fp)
 libc_hidden_def (_IO_wfile_underflow)
 
 
-static wint_t
+wint_t
 _IO_wfile_underflow_mmap (FILE *fp)
 {
   struct _IO_codecvt *cd;
@@ -389,7 +389,7 @@  _IO_wfile_underflow_mmap (FILE *fp)
   return WEOF;
 }
 
-static wint_t
+wint_t
 _IO_wfile_underflow_maybe_mmap (FILE *fp)
 {
   /* This is the first read attempt.  Doing the underflow will choose mmap
@@ -1017,78 +1017,3 @@  _IO_wfile_xsputn (FILE *f, const void *data, size_t n)
   return n - to_do;
 }
 libc_hidden_def (_IO_wfile_xsputn)
-
-
-const struct _IO_jump_t _IO_wfile_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_new_file_finish),
-  JUMP_INIT(overflow, (_IO_overflow_t) _IO_wfile_overflow),
-  JUMP_INIT(underflow, (_IO_underflow_t) _IO_wfile_underflow),
-  JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow),
-  JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
-  JUMP_INIT(xsputn, _IO_wfile_xsputn),
-  JUMP_INIT(xsgetn, _IO_file_xsgetn),
-  JUMP_INIT(seekoff, _IO_wfile_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_new_file_setbuf),
-  JUMP_INIT(sync, (_IO_sync_t) _IO_wfile_sync),
-  JUMP_INIT(doallocate, _IO_wfile_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_new_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_file_close),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-libc_hidden_data_def (_IO_wfile_jumps)
-
-
-const struct _IO_jump_t _IO_wfile_jumps_mmap libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_new_file_finish),
-  JUMP_INIT(overflow, (_IO_overflow_t) _IO_wfile_overflow),
-  JUMP_INIT(underflow, (_IO_underflow_t) _IO_wfile_underflow_mmap),
-  JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow),
-  JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
-  JUMP_INIT(xsputn, _IO_wfile_xsputn),
-  JUMP_INIT(xsgetn, _IO_file_xsgetn),
-  JUMP_INIT(seekoff, _IO_wfile_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_file_setbuf_mmap),
-  JUMP_INIT(sync, (_IO_sync_t) _IO_wfile_sync),
-  JUMP_INIT(doallocate, _IO_wfile_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_new_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_file_close_mmap),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
-
-const struct _IO_jump_t _IO_wfile_jumps_maybe_mmap libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_new_file_finish),
-  JUMP_INIT(overflow, (_IO_overflow_t) _IO_wfile_overflow),
-  JUMP_INIT(underflow, (_IO_underflow_t) _IO_wfile_underflow_maybe_mmap),
-  JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow),
-  JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
-  JUMP_INIT(xsputn, _IO_wfile_xsputn),
-  JUMP_INIT(xsgetn, _IO_file_xsgetn),
-  JUMP_INIT(seekoff, _IO_wfile_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_file_setbuf_mmap),
-  JUMP_INIT(sync, (_IO_sync_t) _IO_wfile_sync),
-  JUMP_INIT(doallocate, _IO_wfile_doallocate),
-  JUMP_INIT(read, _IO_file_read),
-  JUMP_INIT(write, _IO_new_file_write),
-  JUMP_INIT(seek, _IO_file_seek),
-  JUMP_INIT(close, _IO_file_close),
-  JUMP_INIT(stat, _IO_file_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
diff --git a/libio/wmemstream.c b/libio/wmemstream.c
index 6560d7001f..7b04b15cbc 100644
--- a/libio/wmemstream.c
+++ b/libio/wmemstream.c
@@ -30,34 +30,6 @@  struct _IO_FILE_wmemstream
 };
 
 
-static int _IO_wmem_sync (FILE* fp) __THROW;
-static void _IO_wmem_finish (FILE* fp, int) __THROW;
-
-
-static const struct _IO_jump_t _IO_wmem_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT (finish, _IO_wmem_finish),
-  JUMP_INIT (overflow, (_IO_overflow_t) _IO_wstr_overflow),
-  JUMP_INIT (underflow, (_IO_underflow_t) _IO_wstr_underflow),
-  JUMP_INIT (uflow, (_IO_underflow_t) _IO_wdefault_uflow),
-  JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
-  JUMP_INIT (xsputn, _IO_wdefault_xsputn),
-  JUMP_INIT (xsgetn, _IO_wdefault_xsgetn),
-  JUMP_INIT (seekoff, _IO_wstr_seekoff),
-  JUMP_INIT (seekpos, _IO_default_seekpos),
-  JUMP_INIT (setbuf, _IO_default_setbuf),
-  JUMP_INIT (sync, _IO_wmem_sync),
-  JUMP_INIT (doallocate, _IO_wdefault_doallocate),
-  JUMP_INIT (read, _IO_default_read),
-  JUMP_INIT (write, _IO_default_write),
-  JUMP_INIT (seek, _IO_default_seek),
-  JUMP_INIT (close, _IO_default_close),
-  JUMP_INIT (stat, _IO_default_stat),
-  JUMP_INIT (showmanyc, _IO_default_showmanyc),
-  JUMP_INIT (imbue, _IO_default_imbue)
-};
-
 /* Open a stream that writes into a malloc'd buffer that is expanded as
    necessary.  *BUFLOC and *SIZELOC are updated with the buffer's location
    and the number of characters written on fflush or fclose.  */
@@ -105,7 +77,7 @@  open_wmemstream (wchar_t **bufloc, size_t *sizeloc)
 }
 
 
-static int
+int
 _IO_wmem_sync (FILE *fp)
 {
   struct _IO_FILE_wmemstream *mp = (struct _IO_FILE_wmemstream *) fp;
@@ -124,7 +96,7 @@  _IO_wmem_sync (FILE *fp)
 }
 
 
-static void
+void
 _IO_wmem_finish (FILE *fp, int dummy)
 {
   struct _IO_FILE_wmemstream *mp = (struct _IO_FILE_wmemstream *) fp;
diff --git a/libio/wstrops.c b/libio/wstrops.c
index 9c9d303968..632fc123a2 100644
--- a/libio/wstrops.c
+++ b/libio/wstrops.c
@@ -361,27 +361,3 @@  _IO_wstr_finish (FILE *fp, int dummy)
 
   _IO_wdefault_finish (fp, 0);
 }
-
-const struct _IO_jump_t _IO_wstr_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, _IO_wstr_finish),
-  JUMP_INIT(overflow, (_IO_overflow_t) _IO_wstr_overflow),
-  JUMP_INIT(underflow, (_IO_underflow_t) _IO_wstr_underflow),
-  JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow),
-  JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
-  JUMP_INIT(xsputn, _IO_wdefault_xsputn),
-  JUMP_INIT(xsgetn, _IO_wdefault_xsgetn),
-  JUMP_INIT(seekoff, _IO_wstr_seekoff),
-  JUMP_INIT(seekpos, _IO_default_seekpos),
-  JUMP_INIT(setbuf, _IO_default_setbuf),
-  JUMP_INIT(sync, _IO_default_sync),
-  JUMP_INIT(doallocate, _IO_wdefault_doallocate),
-  JUMP_INIT(read, _IO_default_read),
-  JUMP_INIT(write, _IO_default_write),
-  JUMP_INIT(seek, _IO_default_seek),
-  JUMP_INIT(close, _IO_default_close),
-  JUMP_INIT(stat, _IO_default_stat),
-  JUMP_INIT(showmanyc, _IO_default_showmanyc),
-  JUMP_INIT(imbue, _IO_default_imbue)
-};
diff --git a/stdio-common/printf_buffer_as_file.c b/stdio-common/printf_buffer_as_file.c
index 12b0e13f41..fe23797da2 100644
--- a/stdio-common/printf_buffer_as_file.c
+++ b/stdio-common/printf_buffer_as_file.c
@@ -48,7 +48,7 @@  __printf_buffer_as_file_switch_to_buffer (struct __printf_buffer_as_file *file)
 /* Only a small subset of the vtable functions is implemented here,
    following _IO_obstack_jumps.  */
 
-static int
+int
 __printf_buffer_as_file_overflow (FILE *fp, int ch)
 {
   struct __printf_buffer_as_file *file = (struct __printf_buffer_as_file *) fp;
@@ -72,7 +72,7 @@  __printf_buffer_as_file_overflow (FILE *fp, int ch)
     return EOF;
 }
 
-static size_t
+size_t
 __printf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len)
 {
   struct __printf_buffer_as_file *file = (struct __printf_buffer_as_file *) fp;
@@ -93,30 +93,6 @@  __printf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len)
     return 0;
 }
 
-static const struct _IO_jump_t _IO_printf_buffer_as_file_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, NULL),
-  JUMP_INIT(overflow, __printf_buffer_as_file_overflow),
-  JUMP_INIT(underflow, NULL),
-  JUMP_INIT(uflow, NULL),
-  JUMP_INIT(pbackfail, NULL),
-  JUMP_INIT(xsputn, __printf_buffer_as_file_xsputn),
-  JUMP_INIT(xsgetn, NULL),
-  JUMP_INIT(seekoff, NULL),
-  JUMP_INIT(seekpos, NULL),
-  JUMP_INIT(setbuf, NULL),
-  JUMP_INIT(sync, NULL),
-  JUMP_INIT(doallocate, NULL),
-  JUMP_INIT(read, NULL),
-  JUMP_INIT(write, NULL),
-  JUMP_INIT(seek, NULL),
-  JUMP_INIT(close, NULL),
-  JUMP_INIT(stat, NULL),
-  JUMP_INIT(showmanyc, NULL),
-  JUMP_INIT(imbue, NULL)
-};
-
 void
 __printf_buffer_as_file_init (struct __printf_buffer_as_file *file,
                               struct __printf_buffer *next)
diff --git a/stdio-common/wprintf_buffer_as_file.c b/stdio-common/wprintf_buffer_as_file.c
index b2e5b5ada9..dbdb8cc535 100644
--- a/stdio-common/wprintf_buffer_as_file.c
+++ b/stdio-common/wprintf_buffer_as_file.c
@@ -48,7 +48,7 @@  __wprintf_buffer_as_file_switch_to_buffer (struct __wprintf_buffer_as_file *file
 /* Only a small subset of the vtable functions is implemented here,
    following _IO_obstack_jumps.  */
 
-static wint_t
+wint_t
 __wprintf_buffer_as_file_overflow (FILE *fp, int ch)
 {
   struct __wprintf_buffer_as_file *file
@@ -75,7 +75,7 @@  __wprintf_buffer_as_file_overflow (FILE *fp, int ch)
     return WEOF;
 }
 
-static size_t
+size_t
 __wprintf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len)
 {
   struct __wprintf_buffer_as_file *file
@@ -97,30 +97,6 @@  __wprintf_buffer_as_file_xsputn (FILE *fp, const void *buf, size_t len)
     return 0;
 }
 
-static const struct _IO_jump_t _IO_wprintf_buffer_as_file_jumps libio_vtable =
-{
-  JUMP_INIT_DUMMY,
-  JUMP_INIT(finish, NULL),
-  JUMP_INIT(overflow, (_IO_overflow_t) __wprintf_buffer_as_file_overflow),
-  JUMP_INIT(underflow, NULL),
-  JUMP_INIT(uflow, NULL),
-  JUMP_INIT(pbackfail, NULL),
-  JUMP_INIT(xsputn, __wprintf_buffer_as_file_xsputn),
-  JUMP_INIT(xsgetn, NULL),
-  JUMP_INIT(seekoff, NULL),
-  JUMP_INIT(seekpos, NULL),
-  JUMP_INIT(setbuf, NULL),
-  JUMP_INIT(sync, NULL),
-  JUMP_INIT(doallocate, NULL),
-  JUMP_INIT(read, NULL),
-  JUMP_INIT(write, NULL),
-  JUMP_INIT(seek, NULL),
-  JUMP_INIT(close, NULL),
-  JUMP_INIT(stat, NULL),
-  JUMP_INIT(showmanyc, NULL),
-  JUMP_INIT(imbue, NULL)
-};
-
 void
 __wprintf_buffer_as_file_init (struct __wprintf_buffer_as_file *file,
                                struct __wprintf_buffer *next)