Remove --disable-versioning.

ChangeLog

@@ -1,3 +1,55 @@
+2013-09-04  Joseph Myers  <joseph@codesourcery.com>
+
+	* configure.in (--enable-versioning): Remove configure option.
+	(libc_cv_asm_symver_directive): Remove configure test.
+	(libc_cv_ld_version_script_option): Likewise.
+	(VERSIONING): Remove variable and AC_SUBST.
+	(DO_VERSIONING): Remove AC_DEFINE.
+	* configure: Regenerated.
+	* config.h.in (DO_VERSIONING): Remove macro.
+	* Makerules [$(versioning) = yes]: Change conditionals to
+	[$(build-shared) = yes].
+	* config.make.in (versioning): Remove variable.
+	* dlfcn/Makefile [$(versioning) = yes]: Change conditionals to
+	[$(build-shared) = yes].
+	* dlfcn/modstatic2.c (test) [DO_VERSIONING]: Remove conditional.
+	* dlfcn/tststatic2.c (main) [DO_VERSIONING]: Likewise.
+	* elf/Makefile [$(versioning) = yes]: Change conditionals to
+	[$(build-shared) = yes].
+	* extra-lib.mk [$(versioning) = yes]: Likewise.
+	* hurd/Makefile [$(versioning) = yes]: Likewise.
+	* hurd/geteuids.c [SHARED && DO_VERSIONING]: Change conditional to
+	[SHARED].
+	* include/libc-symbols.h [DO_VERSIONING]: Change conditional to
+	[SHARED].
+	[SHARED && DO_VERSIONING && !NO_HIDDEN]: Change conditional to
+	[SHARED && !NO_HIDDEN].
+	* include/shlib-compat.h [DO_VERSIONING]: Change conditional to
+	[SHARED].
+	[SHARED && DO_VERSIONING]: Likewise..
+	* libio/Makefile [$(versioning) = yes]: Change conditionals to
+	[$(build-shared) = yes].
+	* manual/install.texi (--disable-versioning): Remove
+	documentation.
+	* INSTALL: Regenerated.
+	* resolv/res_libc.c [SHARED && DO_VERSIONING]: Change conditional
+	to [SHARED].
+	* sunrpc/Makefile [$(versioning) = yes]: Change conditional to
+	[$(build-shared) = yes].
+	* sysdeps/gnu/Makefile [$(versioning) = yes]: Likewise.
+	* sysdeps/i386/i686/multiarch/strstr-c.c
+	[SHARED && DO_VERSIONING && !NO_HIDDEN]: Change conditional to
+	[SHARED && !NO_HIDDEN].
+	* sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h
+	[SHARED && DO_VERSIONING]: Change conditional to [SHARED].
+	* sysdeps/powerpc/powerpc32/dl-machine.c
+	[SHARED && !(DO_VERSIONING - 0)]: Remove conditional error.
+	* sysdeps/powerpc/powerpc32/sysdep.h
+	[SHARED && DO_VERSIONING && PIC && !NO_HIDDEN]: Change conditional
+	to [SHARED && PIC && !NO_HIDDEN].
+	* sysdeps/wordsize-32/divdi3.c [SHARED && DO_VERSIONING]: Change
+	conditional to [SHARED].
+
 2013-09-04   Will Newton  <will.newton@linaro.org>
 
 	* benchtests/bench-timing.h (TIMING_PRINT_MEAN): New macro.

INSTALL

@@ -111,11 +111,6 @@ will be used, and CFLAGS sets optimization options for the compiler.
      Don't build libraries with profiling information.  You may want to
      use this option if you don't plan to do profiling.
 
-`--disable-versioning'
-     Don't compile the shared libraries with symbol version information.
-     Doing this will make the resulting library incompatible with old
-     binaries, so it's not recommended.
-
 `--enable-static-nss'
      Compile static versions of the NSS (Name Service Switch) libraries.
      This is not recommended because it defeats the purpose of NSS; a

Makerules

@@ -93,7 +93,7 @@ before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
 			       $(before-compile))
 
 # Even before that, we need abi-versions.h which is generated right here.
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
 ifndef avoid-generated
 before-compile := $(common-objpfx)abi-versions.h $(before-compile)
 $(common-objpfx)abi-versions.h: $(..)scripts/abi-versions.awk \
@@ -106,7 +106,7 @@ $(common-objpfx)%.latest: $(common-objpfx)abi-versions.h
 	    $(common-objpfx)abi-versions.h > $@T
 	mv -f $@T $@
 endif # avoid-generated
-endif # $(versioning) = yes
+endif # $(build-shared) = yes
 
 ifndef avoid-generated
 before-compile := $(common-objpfx)libc-abis.h $(before-compile)
@@ -283,7 +283,7 @@ endif
 
 # Generate version maps, but wait until sysdep-subdirs is known
 ifeq ($(sysd-sorted-done),t)
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
 -include $(common-objpfx)sysd-versions
 $(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions
 common-generated += $(version-maps)
@@ -324,7 +324,7 @@ $(common-objpfx)sysd-versions: $(common-objpfx)Versions.all \
 	) > $@T
 	mv -f $@T $@
 endif # avoid-generated
-endif # $(versioning) = yes
+endif # $(build-shared) = yes
 endif # sysd-sorted-done
 
 # Generate .dT files as we compile.
@@ -400,9 +400,9 @@ elide-routines.og += $(shared-only-routines)
 
 ifeq (yes,$(build-shared))
 
-# Reference map file only when versioning is selected and a map file name
+# Reference map file only when shared libraries are built and a map file name
 # is given.
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
 map-file = $(firstword $($(@F:.so=-map)) \
 		       $(addprefix $(common-objpfx), \
 				   $(filter $(@F:.so=.map),$(version-maps))))
@@ -575,7 +575,7 @@ $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
 			 $(elfobjdir)/interp.os $(elfobjdir)/ld.so \
 			 $(shlib-lds)
 	$(build-shlib)
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
 $(common-objpfx)libc.so: $(common-objpfx)libc.map
 endif
 common-generated += libc.so libc_pic.os
@@ -1132,7 +1132,7 @@ endif
 CPPFLAGS-nonlib = -DNOT_IN_libc=1
 
 
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
 # Generate normalized lists of symbols, versions, and data sizes.
 # This is handy for checking against existing library binaries.
 

config.h.in

@@ -57,9 +57,6 @@
    directive.  */
 #undef	HAVE_ASM_POPSECTION_DIRECTIVE
 
-/* Define if versioning of the library is wanted.  */
-#undef	DO_VERSIONING
-
 /* Defined to the oldest ABI we support, like 2.1.  */
 #undef GLIBC_OLDEST_ABI
 

config.make.in

@@ -67,7 +67,6 @@ output-format = @libc_cv_output_format@
 
 static-libgcc = @libc_cv_gcc_static_libgcc@
 
-versioning = @VERSIONING@
 oldest-abi = @oldest_abi@
 exceptions = @exceptions@
 multi-arch = @multi_arch@

configure

@@ -613,7 +613,6 @@ libc_cv_z_combreloc
 ASFLAGS_config
 libc_cv_Bgroup
 libc_cv_cc_with_libunwind
-VERSIONING
 BISON
 INSTALL_INFO
 PERL
@@ -739,7 +738,6 @@ with_default_link
 enable_sanity_checks
 enable_shared
 enable_profile
-enable_versioning
 enable_oldest_abi
 enable_hardcoded_path_in_tests
 enable_stackguard_randomization
@@ -1392,8 +1390,6 @@ Optional Features:
                           in special situations) [default=yes]
   --enable-shared         build shared library [default=yes if GNU ld]
   --enable-profile        build profiled library [default=no]
-  --disable-versioning    do not include versioning information in the library
-                          objects [default=yes if supported]
   --enable-oldest-abi=ABI configure the oldest ABI supported [e.g. 2.2]
                           [default=glibc default]
   --enable-hardcoded-path-in-tests
@@ -3432,13 +3428,6 @@ else
   profile=no
 fi
 
-# Check whether --enable-versioning was given.
-if test "${enable_versioning+set}" = set; then :
-  enableval=$enable_versioning; enable_versioning=$enableval
-else
-  enable_versioning=yes
-fi
-
 
 # Check whether --enable-oldest-abi was given.
 if test "${enable_oldest_abi+set}" = set; then :
@@ -5631,90 +5620,6 @@ if test $libc_cv_asm_unique_object = yes; then
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .symver assembler directive" >&5
-$as_echo_n "checking for .symver assembler directive... " >&6; }
-if ${libc_cv_asm_symver_directive+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.s <<EOF
-${libc_cv_dot_text}
-_sym:
-.symver _sym,sym@VERS
-EOF
-if ${CC-cc} -c $ASFLAGS conftest.s 1>&5 2>&5; then
-  libc_cv_asm_symver_directive=yes
-else
-  libc_cv_asm_symver_directive=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_symver_directive" >&5
-$as_echo "$libc_cv_asm_symver_directive" >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld --version-script" >&5
-$as_echo_n "checking for ld --version-script... " >&6; }
-if ${libc_cv_ld_version_script_option+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test $libc_cv_asm_symver_directive = yes; then
-  cat > conftest.s <<EOF
-${libc_cv_dot_text}
-_sym:
-.symver _sym,sym@VERS
-EOF
-  cat > conftest.map <<EOF
-VERS_1 {
-	global: sym;
-};
-
-VERS_2 {
-	global: sym;
-} VERS_1;
-EOF
-  if ${CC-cc} -c $ASFLAGS conftest.s 1>&5 2>&5; then
-    if { ac_try='${CC-cc} $CFLAGS $LDFLAGS -shared
-				-o conftest.so conftest.o
-				-nostartfiles -nostdlib
-				-Wl,--version-script,conftest.map
-		       1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; };
-    then
-      libc_cv_ld_version_script_option=yes
-    else
-      libc_cv_ld_version_script_option=no
-    fi
-  else
-    libc_cv_ld_version_script_option=no
-  fi
-else
-  libc_cv_ld_version_script_option=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_version_script_option" >&5
-$as_echo "$libc_cv_ld_version_script_option" >&6; }
-if test $shared != no &&
-   test $libc_cv_asm_symver_directive = yes &&
-   test $libc_cv_ld_version_script_option = yes &&
-   test $enable_versioning = yes; then
-  VERSIONING=yes
-  $as_echo "#define DO_VERSIONING 1" >>confdefs.h
-
-else
-  VERSIONING=no
-fi
-
-
-if test $shared != no && test $VERSIONING = no; then
-  echo "\
-*** WARNING: You should not compile GNU libc without versioning. Not using
-*** versioning will introduce incompatibilities so that old binaries
-*** will not run anymore.
-*** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)."
-fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for .previous assembler directive" >&5
 $as_echo_n "checking for .previous assembler directive... " >&6; }
 if ${libc_cv_asm_previous_directive+:} false; then :

configure.in

@@ -150,11 +150,6 @@ AC_ARG_ENABLE([profile],
 			     [build profiled library @<:@default=no@:>@]),
 	      [profile=$enableval],
 	      [profile=no])
-AC_ARG_ENABLE([versioning],
-	      AC_HELP_STRING([--disable-versioning],
-			     [do not include versioning information in the library objects @<:@default=yes if supported@:>@]),
-	      [enable_versioning=$enableval],
-	      [enable_versioning=yes])
 
 AC_ARG_ENABLE([oldest-abi],
 	      AC_HELP_STRING([--enable-oldest-abi=ABI],
@@ -1204,70 +1199,6 @@ if test $libc_cv_asm_unique_object = yes; then
   AC_DEFINE(HAVE_ASM_UNIQUE_OBJECT)
 fi
 
-AC_CACHE_CHECK(for .symver assembler directive, libc_cv_asm_symver_directive,
-[cat > conftest.s <<EOF
-${libc_cv_dot_text}
-_sym:
-.symver _sym,sym@VERS
-EOF
-if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
-  libc_cv_asm_symver_directive=yes
-else
-  libc_cv_asm_symver_directive=no
-fi
-rm -f conftest*])
-AC_CACHE_CHECK(for ld --version-script, libc_cv_ld_version_script_option, [dnl
-if test $libc_cv_asm_symver_directive = yes; then
-  cat > conftest.s <<EOF
-${libc_cv_dot_text}
-_sym:
-.symver _sym,sym@VERS
-EOF
-  cat > conftest.map <<EOF
-VERS_1 {
-	global: sym;
-};
-
-VERS_2 {
-	global: sym;
-} VERS_1;
-EOF
-  if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
-    if AC_TRY_COMMAND([${CC-cc} $CFLAGS $LDFLAGS -shared
-				-o conftest.so conftest.o
-				-nostartfiles -nostdlib
-				-Wl,--version-script,conftest.map
-		       1>&AS_MESSAGE_LOG_FD]);
-    then
-      libc_cv_ld_version_script_option=yes
-    else
-      libc_cv_ld_version_script_option=no
-    fi
-  else
-    libc_cv_ld_version_script_option=no
-  fi
-else
-  libc_cv_ld_version_script_option=no
-fi
-rm -f conftest*])
-if test $shared != no &&
-   test $libc_cv_asm_symver_directive = yes &&
-   test $libc_cv_ld_version_script_option = yes &&
-   test $enable_versioning = yes; then
-  VERSIONING=yes
-  AC_DEFINE(DO_VERSIONING)
-else
-  VERSIONING=no
-fi
-AC_SUBST(VERSIONING)
-
-if test $shared != no && test $VERSIONING = no; then
-  echo "\
-*** WARNING: You should not compile GNU libc without versioning. Not using
-*** versioning will introduce incompatibilities so that old binaries
-*** will not run anymore.
-*** For versioning you need recent binutils (binutils-2.8.1.0.23 or newer)."
-fi
 AC_CACHE_CHECK(for .previous assembler directive,
 	       libc_cv_asm_previous_directive, [dnl
 cat > conftest.s <<EOF

dlfcn/Makefile

@@ -27,7 +27,7 @@ extra-libs-others := libdl
 
 include ../Makeconfig
 
-ifeq ($(versioning),yes)
+ifeq ($(build-shared),yes)
 libdl-routines	+= dlopenold
 libdl-shared-only-routines := dlopenold dlfcn
 endif

dlfcn/modstatic2.c

@@ -117,13 +117,11 @@ test (FILE *out, int a)
       exit (1);
     }
 
-#ifdef DO_VERSIONING
   if (dlvsym (handle2, "_dlfcn_hook", "GLIBC_PRIVATE") == NULL)
     {
       fprintf (out, "dlvsym: %s\n", dlerror ());
       exit (1);
     }
-#endif
 
   void *(*dlsymfn) (void *, const char *);
   dlsymfn = dlsym (handle2, "dlsym");