More fallout from supporting only ELF

ChangeLog

@@ -1,3 +1,31 @@
+2012-01-08  Ulrich Drepper  <drepper@gmail.com>
+
+	* configure.in: Remove --with-elf and --enable-bounded options.
+	Dont set base_machine for ia64.  More non-ELF conditions removed.
+	Remove testing and setting of leading underscore information.
+	* config.make.in (build-bounded): Set to no.
+	* config.h.in: Remove NO_UNDERSCORES entry.
+	* include/libc-symbols.h: Don't define HAVE_WEAK_SYMBOLS.  ELF has
+	them.
+	* csu/start.c: Remove !NO_UNDERSCORE code.
+	* locale/localeinfo.h: Likewise.
+	* sysdeps/generic/machine-gmon.h: Likewise.
+	* sysdeps/generic/sysdep.h: Likewise.
+	* sysdeps/i386/sysdep.h: Likewise.
+	* sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h: Likewise.
+	* sysdeps/mach/sysdep.h: Likewise.
+	* sysdeps/s390/s390-32/sysdep.h: Likewise.
+	* sysdeps/s390/s390-64/sysdep.h: Likewise.
+	* sysdeps/sh/sysdep.h: Likewise.
+	* sysdeps/sparc/sparc32/alloca.S: Likewise.
+	* sysdeps/unix/i386/sysdep.S: Likewise.
+	* sysdeps/unix/sparc/start.c: Likewise.
+	* sysdeps/unix/sparc/sysdep.S: Likewise.
+	* sysdeps/unix/sparc/sysdep.h: Likewise.
+	* sysdeps/unix/start.c: Likewise.
+	* sysdeps/unix/x86_64/sysdep.S: Likewise.
+	* sysdeps/x86_64/sysdep.h: Likewise.
+
 2012-01-07  Ulrich Drepper  <drepper@gmail.com>
 
 	[BZ #13553]

config.h.in

@@ -17,10 +17,6 @@
 /* Defined if building with SELinux support & libcap libs are detected.  */
 #undef  HAVE_LIBCAP
 
-/* Define if C symbols are asm symbols.  Don't define if C symbols
-   have a `_' prepended to make the asm symbol.  */
-#undef	NO_UNDERSCORES
-
 /* Define if weak symbols are available via the `.weak' directive.  */
 #undef	HAVE_ASM_WEAK_DIRECTIVE
 

config.make.in

@@ -92,7 +92,7 @@ build-static = @static@
 build-shared = @shared@
 build-pic-default= @libc_cv_pic_default@
 build-profile = @profile@
-build-bounded = @bounded@
+build-bounded = no
 build-static-nss = @static_nss@
 add-ons = @add_ons@
 add-on-subdirs = @add_on_subdirs@

configure

@@ -640,7 +640,6 @@ have_libaudit
 LIBGD
 libc_cv_cc_submachine
 exceptions
-libc_cv_have_initfini
 gnu89_inline
 libc_cv_ssp
 fno_unit_at_a_time
@@ -765,7 +764,6 @@ with_gd_include
 with_gd_lib
 with_fp
 with_binutils
-with_elf
 with_selinux
 with_headers
 with_default_link
@@ -773,7 +771,6 @@ enable_sanity_checks
 enable_check_abi
 enable_shared
 enable_profile
-enable_bounded
 enable_versioning
 enable_oldest_abi
 enable_stackguard_randomization
@@ -1420,9 +1417,8 @@ Optional Features:
                           in special situations) [default=yes]
   --enable-check-abi      do "make check-abi" in "make check" (no/warn/yes)
                           [default=no]
-  --enable-shared         build shared library [default=yes if GNU ld & ELF]
+  --enable-shared         build shared library [default=yes if GNU ld]
   --enable-profile        build profiled library [default=no]
-  --enable-bounded        build with runtime bounds checking [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]
@@ -1453,7 +1449,6 @@ Optional Packages:
   --with-gd-lib=DIR       find libgd library files in DIR
   --with-fp               if using floating-point hardware [default=yes]
   --with-binutils=PATH    specify location of binutils (as and ld)
-  --with-elf              if using the ELF object format
   --with-selinux          if building with SELinux support
   --with-headers=PATH     location of system headers to use (for example
                           /usr/src/linux/include) [default=compiler default]
@@ -3525,14 +3520,6 @@ else
 fi
 
 
-# Check whether --with-elf was given.
-if test "${with_elf+set}" = set; then :
-  withval=$with_elf; elf=$withval
-else
-  elf=no
-fi
-
-
 # Check whether --with-selinux was given.
 if test "${with_selinux+set}" = set; then :
   withval=$with_selinux; with_selinux=$withval
@@ -3582,7 +3569,7 @@ static=yes
 if test "${enable_shared+set}" = set; then :
   enableval=$enable_shared; shared=$enableval
 else
-  shared=default
+  shared=yes
 fi
 
 # Check whether --enable-profile was given.
@@ -3592,13 +3579,6 @@ else
   profile=no
 fi
 
-# Check whether --enable-bounded was given.
-if test "${enable_bounded+set}" = set; then :
-  enableval=$enable_bounded; bounded=$enableval
-else
-  bounded=no
-fi
-
 # Check whether --enable-versioning was given.
 if test "${enable_versioning+set}" = set; then :
   enableval=$enable_versioning; enable_versioning=$enableval
@@ -4011,7 +3991,6 @@ fi
 # base_machine, we don't change it.
 test -n "$base_machine" || case "$machine" in
 i[34567]86)	base_machine=i386 machine=i386/$machine ;;
-ia64)		base_machine=ia64 machine=ia64 ;;
 powerpc)	base_machine=powerpc machine=powerpc/powerpc32 ;;
 powerpc64)	base_machine=powerpc machine=powerpc/powerpc64 ;;
 s390)           base_machine=s390 machine=s390/s390-32 ;;
@@ -4316,12 +4295,11 @@ fi
 # We have now validated the configuration.
 
 
-# If using ELF, look for an `elf' subdirectory of each machine directory.
+# Look for an `elf' subdirectory of each machine directory.
 # We prepend these rather than inserting them whereever the machine appears
 # because things specified by the machine's ELF ABI should override
 # OS-specific things, and should always be the same for any OS on the
 # machine (otherwise what's the point of an ABI?).
-if test "$elf" = yes; then
 elf_dirs=
 for d in $add_ons_pfx ''; do
   for m in $mach; do
@@ -4331,7 +4309,6 @@ if test "$elf" = yes; then
   done
 done
 sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames"
-fi
 
 
 # Expand the list of system names into a full list of directories
@@ -4414,10 +4391,7 @@ $as_echo "$as_me: WARNING: $name/Implies specifies nonexistent $x" >&2;}
 done
 
 # Add the default directories.
-default_sysnames=sysdeps/generic
+default_sysnames="sysdeps/generic/elf sysdeps/generic"
-if test "$elf" = yes; then
-  default_sysnames="sysdeps/generic/elf $default_sysnames"
-fi
 sysnames="$names $default_sysnames"
 
 # The other names were emitted during the scan.
@@ -5887,14 +5861,13 @@ else
 fi
 
 
-if test $elf = yes && test $shared != no && test $VERSIONING = no; then
+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
-if test $elf = yes; then
 { $as_echo "$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 :
@@ -6685,7 +6658,6 @@ fi
 $as_echo "$libc_cv_use_default_link" >&6; }
   use_default_link=$libc_cv_use_default_link
 fi
-fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker output format" >&5
 $as_echo_n "checking linker output format... " >&6; }
@@ -6799,41 +6771,6 @@ else
 fi
 
 
-if test $elf != yes; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for .init and .fini sections" >&5
-$as_echo_n "checking for .init and .fini sections... " >&6; }
-if ${libc_cv_have_initfini+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main ()
-{
-asm (".section .init");
-				    asm (".section .fini");
-				    asm ("${libc_cv_dot_text}");
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  libc_cv_have_initfini=yes
-else
-  libc_cv_have_initfini=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_initfini" >&5
-$as_echo "$libc_cv_have_initfini" >&6; }
-    if test $libc_cv_have_initfini = yes; then
-    $as_echo "#define HAVE_INITFINI 1" >>confdefs.h
-
-  fi
-fi
-
-if test $elf = yes; then
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether cc puts quotes around section names" >&5
 $as_echo_n "checking whether cc puts quotes around section names... " >&6; }
 if ${libc_cv_have_section_quotes+:} false; then :
@@ -6861,84 +6798,6 @@ $as_echo "$libc_cv_have_section_quotes" >&6; }
   $as_echo "#define HAVE_SECTION_QUOTES 1" >>confdefs.h
 
 fi
-fi
-
-
-
-if test $elf = yes; then
-  libc_cv_asm_underscores=no
-else
-  if test $ac_cv_prog_cc_works = yes; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ prefix on C symbol names" >&5
-$as_echo_n "checking for _ prefix on C symbol names... " >&6; }
-if ${libc_cv_asm_underscores+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-asm ("_glibc_foobar:");
-int
-main ()
-{
-glibc_foobar ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  libc_cv_asm_underscores=yes
-else
-  libc_cv_asm_underscores=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_underscores" >&5
-$as_echo "$libc_cv_asm_underscores" >&6; }
-  else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _ prefix on C symbol names" >&5
-$as_echo_n "checking for _ prefix on C symbol names... " >&6; }
-if ${libc_cv_asm_underscores+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.$ac_ext <<EOF
-#line $LINENO "configure"
-#include "confdefs.h"
-void underscore_test(void) {
-return; }
-EOF
-if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; then
-  if grep _underscore_test conftest* >/dev/null; then
-    rm -f conftest*
-    libc_cv_asm_underscores=yes
-  else
-    rm -f conftest*
-    libc_cv_asm_underscores=no
-  fi
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -f conftest*
-  libc_cv_asm_underscores=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_underscores" >&5
-$as_echo "$libc_cv_asm_underscores" >&6; }
-  fi
-fi
-if test $libc_cv_asm_underscores = no; then
-  $as_echo "#define NO_UNDERSCORES 1" >>confdefs.h
-
-fi
-
-if test $elf = yes; then
-  libc_cv_weak_symbols=yes
-fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler .weak directive" >&5
 $as_echo_n "checking for assembler .weak directive... " >&6; }
@@ -7902,9 +7761,6 @@ fi
 
 
 
-if test $shared = default; then
-  shared=$elf
-fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -fPIC is default" >&5
 $as_echo_n "checking whether -fPIC is default... " >&6; }

configure.in

@@ -77,11 +77,6 @@ AC_ARG_WITH([binutils],
 			   [specify location of binutils (as and ld)]),
 	    [path_binutils=$withval],
 	    [path_binutils=''])
-AC_ARG_WITH([elf],
-	    AC_HELP_STRING([--with-elf],
-			   [if using the ELF object format]),
-	    [elf=$withval],
-	    [elf=no])
 AC_ARG_WITH([selinux],
 	    AC_HELP_STRING([--with-selinux],
 			   [if building with SELinux support]),
@@ -129,19 +124,14 @@ dnl               [static=yes])
 static=yes
 AC_ARG_ENABLE([shared],
 	      AC_HELP_STRING([--enable-shared],
-			     [build shared library @<:@default=yes if GNU ld & ELF@:>@]),
+			     [build shared library @<:@default=yes if GNU ld@:>@]),
 	      [shared=$enableval],
-	      [shared=default])
+	      [shared=yes])
 AC_ARG_ENABLE([profile],
 	      AC_HELP_STRING([--enable-profile],
 			     [build profiled library @<:@default=no@:>@]),
 	      [profile=$enableval],
 	      [profile=no])
-AC_ARG_ENABLE([bounded],
-	      AC_HELP_STRING([--enable-bounded],
-			     [build with runtime bounds checking @<:@default=no@:>@]),
-	      [bounded=$enableval],
-	      [bounded=no])
 AC_ARG_ENABLE([versioning],
 	      AC_HELP_STRING([--disable-versioning],
 			     [do not include versioning information in the library objects @<:@default=yes if supported@:>@]),
@@ -510,7 +500,6 @@ changequote(,)dnl
 # base_machine, we don't change it.
 test -n "$base_machine" || case "$machine" in
 i[34567]86)	base_machine=i386 machine=i386/$machine ;;
-ia64)		base_machine=ia64 machine=ia64 ;;
 powerpc)	base_machine=powerpc machine=powerpc/powerpc32 ;;
 powerpc64)	base_machine=powerpc machine=powerpc/powerpc64 ;;
 s390)           base_machine=s390 machine=s390/s390-32 ;;
@@ -771,12 +760,11 @@ AC_SUBST(submachine)
 # We have now validated the configuration.
 
 
-# If using ELF, look for an `elf' subdirectory of each machine directory.
+# Look for an `elf' subdirectory of each machine directory.
 # We prepend these rather than inserting them whereever the machine appears
 # because things specified by the machine's ELF ABI should override
 # OS-specific things, and should always be the same for any OS on the
 # machine (otherwise what's the point of an ABI?).
-if test "$elf" = yes; then
 elf_dirs=
 for d in $add_ons_pfx ''; do
   for m in $mach; do
@@ -786,7 +774,6 @@ if test "$elf" = yes; then
   done
 done
 sysnames="`echo $elf_dirs | sed -e 's,//,/,g'` $sysnames"
-fi
 
 
 # Expand the list of system names into a full list of directories
@@ -870,10 +857,7 @@ changequote([,])dnl
 done
 
 # Add the default directories.
-default_sysnames=sysdeps/generic
+default_sysnames="sysdeps/generic/elf sysdeps/generic"
-if test "$elf" = yes; then
-  default_sysnames="sysdeps/generic/elf $default_sysnames"
-fi
 sysnames="$names $default_sysnames"
 AC_SUBST(sysnames)
 # The other names were emitted during the scan.
@@ -1267,14 +1251,13 @@ else
 fi
 AC_SUBST(VERSIONING)
 
-if test $elf = yes && test $shared != no && test $VERSIONING = no; then
+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
-if test $elf = yes; then
 AC_CACHE_CHECK(for .previous assembler directive,
 	       libc_cv_asm_previous_directive, [dnl
 cat > conftest.s <<EOF
@@ -1799,7 +1782,6 @@ $ac_try"
   rm -f conftest*])
   use_default_link=$libc_cv_use_default_link
 fi
-fi
 
 AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl
 if libc_cv_output_format=`
@@ -1870,20 +1852,6 @@ else
 fi
 AC_SUBST(gnu89_inline)
 
-if test $elf != yes; then
-  AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
-		 [AC_TRY_COMPILE(, [asm (".section .init");
-				    asm (".section .fini");
-				    asm ("${libc_cv_dot_text}");],
-				 libc_cv_have_initfini=yes,
-				 libc_cv_have_initfini=no)])
-  AC_SUBST(libc_cv_have_initfini)dnl
-  if test $libc_cv_have_initfini = yes; then
-    AC_DEFINE(HAVE_INITFINI)
-  fi
-fi
-
-if test $elf = yes; then
 AC_CACHE_CHECK(whether cc puts quotes around section names,
 	       libc_cv_have_section_quotes,
 	       [cat > conftest.c <<EOF
@@ -1904,55 +1872,6 @@ EOF
 if test $libc_cv_have_section_quotes = yes; then
   AC_DEFINE(HAVE_SECTION_QUOTES)
 fi
-fi
-
-dnl AC_CHECK_ASM_UNDERSCORE([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
-AC_DEFUN(AC_CHECK_ASM_UNDERSCORE,
-[cat > conftest.$ac_ext <<EOF
-dnl This sometimes fails to find confdefs.h, for some reason.
-dnl [#]line $LINENO "[$]0"
-[#]line $LINENO "configure"
-#include "confdefs.h"
-void underscore_test(void) {
-return; }
-EOF
-if AC_TRY_EVAL(ac_compile); then
-  if grep _underscore_test conftest* >/dev/null; then
-    ifelse([$1], , :, [rm -f conftest*
-    $1])
-  else
-    ifelse([$2], , , [rm -f conftest*
-    $2])
-  fi
-else
-  echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
-  cat conftest.$ac_ext >&AS_MESSAGE_LOG_FD
-  ifelse([$2], , , [rm -f conftest*
-  $2])
-fi
-rm -f conftest*])
-
-if test $elf = yes; then
-  libc_cv_asm_underscores=no
-else
-  if test $ac_cv_prog_cc_works = yes; then
-    AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
-		   [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
-				libc_cv_asm_underscores=yes,
-				libc_cv_asm_underscores=no)])
-  else
-    AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
-		   [AC_CHECK_ASM_UNDERSCORE(libc_cv_asm_underscores=yes,
-					    libc_cv_asm_underscores=no)])
-  fi
-fi
-if test $libc_cv_asm_underscores = no; then
-  AC_DEFINE(NO_UNDERSCORES)
-fi
-
-if test $elf = yes; then
-  libc_cv_weak_symbols=yes
-fi
 
 AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
 	       [dnl
@@ -2314,9 +2233,6 @@ AC_SUBST(ldd_rewrite_script)
 
 AC_SUBST(static)
 AC_SUBST(shared)
-if test $shared = default; then
-  shared=$elf
-fi
 
 AC_CACHE_CHECK([whether -fPIC is default], libc_cv_pic_default,
 [libc_cv_pic_default=yes

csu/start.c

@@ -8,6 +8,4 @@
 
 /* The first piece of initialized data.  */
 int __data_start = 0;
-#ifdef HAVE_WEAK_SYMBOLS
 weak_alias (__data_start, data_start)
-#endif

include/libc-symbols.h

@@ -55,24 +55,16 @@
 
 /* The symbols in all the user (non-_) macros are C symbols.  */
 
-#if defined HAVE_ASM_WEAK_DIRECTIVE || defined HAVE_ASM_WEAKEXT_DIRECTIVE
+#if !defined HAVE_ASM_WEAK_DIRECTIVE && !defined HAVE_ASM_WEAKEXT_DIRECTIVE
-# define HAVE_WEAK_SYMBOLS
+# error "weak symbol support needed"
 #endif
 
 #ifndef __SYMBOL_PREFIX
-# ifdef NO_UNDERSCORES
 # define __SYMBOL_PREFIX
-# else
-#  define __SYMBOL_PREFIX "_"
-# endif
 #endif
 
 #ifndef C_SYMBOL_NAME
-# ifdef NO_UNDERSCORES
 # define C_SYMBOL_NAME(name) name
-# else
-#  define C_SYMBOL_NAME(name) _##name
-# endif
 #endif
 
 #ifndef ASM_LINE_SEP
@@ -104,8 +96,6 @@
 # define weak_function __attribute__ ((weak))
 # define weak_const_function __attribute__ ((weak, __const__))
 
-# ifdef HAVE_WEAK_SYMBOLS
-
 /* Define ALIASNAME as a weak alias for NAME.
    If weak aliases are not available, this defines a strong alias.  */
 # define weak_alias(name, aliasname) _weak_alias (name, aliasname)
@@ -123,13 +113,6 @@
 # define weak_extern(symbol) _weak_extern (weak symbol)
 # define _weak_extern(expr) _Pragma (#expr)
 
-# else
-
-#  define weak_alias(name, aliasname) strong_alias(name, aliasname)
-#  define weak_hidden_alias(name, aliasname) strong_alias(name, aliasname)
-#  define weak_extern(symbol) /* Nothing. */
-
-# endif
 
 #else /* __ASSEMBLER__ */
 
@@ -167,7 +150,6 @@
 #  endif
 # endif
 
-# ifdef HAVE_WEAK_SYMBOLS
 # ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
 #  ifdef HAVE_ASM_GLOBAL_DOT_NAME
 #   define weak_alias(original, alias)					\
@@ -199,12 +181,6 @@
 
 # endif /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */
 
-# else /* ! HAVE_WEAK_SYMBOLS */
-
-#  define weak_alias(original, alias) strong_alias(original, alias)
-#  define weak_extern(symbol) /* Nothing */
-# endif /* ! HAVE_WEAK_SYMBOLS */
-
 #endif /* __ASSEMBLER__ */
 
 /* On some platforms we can make internal function calls (i.e., calls of

locale/localeinfo.h

@@ -1,5 +1,5 @@
 /* Declarations for internal libc locale interfaces
-   Copyright (C) 1995-2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+   Copyright (C) 1995-2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -216,7 +216,7 @@ __libc_tsd_define (extern, __locale_t, LOCALE)
    unused.  We can manage this playing some tricks with weak references.
    But with thread-local locale settings, it becomes quite ungainly unless
    we can use __thread variables.  So only in that case do we attempt this.  */
-#if !defined SHARED && defined HAVE_WEAK_SYMBOLS
+#ifndef SHARED
 # include <tls.h>
 # define NL_CURRENT_INDIRECT	1
 #endif

sysdeps/generic/machine-gmon.h

@@ -1,5 +1,5 @@
 /* Machine-dependent definitions for profiling support.  Generic GCC 2 version.
-   Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 2000, 2012 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
@@ -31,16 +31,10 @@
 #endif
 
 #include <sysdep.h>
-#ifndef NO_UNDERSCORES
-/* The asm symbols for C functions are `_function'.
-   The canonical name for the counter function is `mcount', no _.  */
-void _mcount (void) asm ("mcount");
-#else
 /* The canonical name for the function is `_mcount' in both C and asm,
    but some old asm code might assume it's `mcount'.  */
 void _mcount (void);
 weak_alias (_mcount, mcount)
-#endif
 
 static void mcount_internal (u_long frompc, u_long selfpc);
 

sysdeps/generic/sysdep.h

@@ -1,5 +1,5 @@
 /* Generic asm macros used on many machines.
-   Copyright (C) 1991-1993,96,98,2002,2003,2009,2011
+   Copyright (C) 1991-1993,96,98,2002,2003,2009,2011,2012
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -21,19 +21,11 @@
 #ifndef C_LABEL
 
 /* Define a macro we can use to construct the asm name for a C symbol.  */
-# ifdef	NO_UNDERSCORES
 # ifdef __STDC__
 #  define C_LABEL(name)	name##:
 # else
 #  define C_LABEL(name)	name/**/:
 # endif
-# else
-#  ifdef __STDC__
-#   define C_LABEL(name)	_##name##:
-#  else
-#   define C_LABEL(name)	_/**/name/**/:
-#  endif
-# endif
 
 #endif
 

sysdeps/i386/sysdep.h

@@ -30,10 +30,6 @@
 #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
 #define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
 
-/* In ELF C symbols are asm symbols.  */
-#undef	NO_UNDERSCORES
-#define NO_UNDERSCORES
-
 
 /* Define an entry point visible from C.
 
@@ -95,13 +91,11 @@
 #define CALL_MCOUNT		/* Do nothing.  */
 #endif
 
-#ifdef	NO_UNDERSCORES
 /* Since C identifiers are not normally prefixed with an underscore
    on this system, the asm identifier `syscall_error' intrudes on the
    C name space.  Make sure we use an innocuous name.  */
 #define	syscall_error	__syscall_error
 #define mcount		_mcount
-#endif
 
 #define	PSEUDO(name, syscall_name, args)				      \
   .globl syscall_error;							      \

sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h

@@ -20,7 +20,7 @@
   long_double_symbol (libc, __GL_##name##_##aliasname, aliasname);
 # define long_double_symbol_1(lib, local, symbol, version) \
   versioned_symbol (lib, local, symbol, version)
-#elif defined HAVE_WEAK_SYMBOLS
+#else
 # define ldbl_hidden_def(local, name) libc_hidden_def (name)
 # define ldbl_strong_alias(name, aliasname) strong_alias (name, aliasname)
 # define ldbl_weak_alias(name, aliasname) weak_alias (name, aliasname)
@@ -33,12 +33,6 @@
 #  define long_double_symbol_1(lib, local, symbol, version) \
   weak_alias (local, symbol)
 # endif
-#else
-# define ldbl_hidden_def(local, name) libc_hidden_def (name)
-# define ldbl_strong_alias(name, aliasname) strong_alias (name, aliasname)
-# define ldbl_weak_alias(name, aliasname) strong_alias (name, aliasname)
-# define long_double_symbol_1(lib, local, symbol, version) \
-  strong_alias (local, symbol)
 #endif
 
 #ifndef __ASSEMBLER__

sysdeps/mach/sysdep.h

@@ -84,8 +84,4 @@
 #endif
 
 /* Used by some assembly code.  */
-#ifdef NO_UNDERSCORES
 #define C_SYMBOL_NAME(name)	name
-#else
-#define C_SYMBOL_NAME(name)	_##name
-#endif

sysdeps/s390/s390-32/sysdep.h

@@ -30,10 +30,6 @@
 #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
 #define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
 
-/* In ELF C symbols are asm symbols.  */
-#undef	NO_UNDERSCORES
-#define NO_UNDERSCORES
-
 
 /* Define an entry point visible from C. */
 #define	ENTRY(name)							      \
@@ -66,13 +62,11 @@
 #define CALL_MCOUNT		/* Do nothing.  */
 #endif
 
-#ifdef	NO_UNDERSCORES
 /* Since C identifiers are not normally prefixed with an underscore
    on this system, the asm identifier `syscall_error' intrudes on the
    C name space.  Make sure we use an innocuous name.  */
 #define	syscall_error	__syscall_error
 #define mcount		_mcount
-#endif
 
 #define	PSEUDO(name, syscall_name, args) \
 lose: SYSCALL_PIC_SETUP				\

sysdeps/s390/s390-64/sysdep.h

@@ -30,10 +30,6 @@
 #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
 #define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
 
-/* In ELF C symbols are asm symbols.  */
-#undef	NO_UNDERSCORES
-#define NO_UNDERSCORES
-
 
 /* Define an entry point visible from C. */
 #define	ENTRY(name)							      \
@@ -64,13 +60,11 @@
 #define CALL_MCOUNT		/* Do nothing.  */
 #endif
 
-#ifdef	NO_UNDERSCORES
 /* Since C identifiers are not normally prefixed with an underscore
    on this system, the asm identifier `syscall_error' intrudes on the
    C name space.  Make sure we use an innocuous name.  */
 #define	syscall_error	__syscall_error
 #define mcount		_mcount
-#endif
 
 #define	PSEUDO(name, syscall_name, args) \
 lose: SYSCALL_PIC_SETUP			\

sysdeps/sh/sysdep.h

@@ -69,12 +69,10 @@
 #define CALL_MCOUNT		/* Do nothing.  */
 #endif
 
-#ifdef	NO_UNDERSCORES
 /* Since C identifiers are not normally prefixed with an underscore
    on this system, the asm identifier `syscall_error' intrudes on the
    C name space.  Make sure we use an innocuous name.  */
 #define	syscall_error	__syscall_error
 #define mcount		_mcount
-#endif
 
 #endif	/* __ASSEMBLER__ */

sysdeps/sparc/sparc32/alloca.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 1994, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1994, 1997, 2012 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
@@ -22,10 +22,6 @@
    arguments which it makes relocatable symbols but seem always to be
    the constant 96; I have no idea what they are for.  */
 
-#ifndef NO_UNDERSCORES
-#define __builtin_alloca ___builtin_alloca
-#endif
-
 ENTRY (__builtin_alloca)
 	sub %sp, %o0, %sp	/* Push some stack space.  */
 	retl			/* Return; the returned buffer leaves 96 */

sysdeps/unix/i386/sysdep.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1997,2000,2002,2004,2005,2011
+/* Copyright (C) 1991-1997,2000,2002,2004,2005,2011,2012
 	Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -30,12 +30,7 @@
 .globl C_SYMBOL_NAME(errno)
 .globl syscall_error
 
-#undef syscall_error
-#ifdef NO_UNDERSCORES
 __syscall_error:
-#else
-syscall_error:
-#endif
 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
 	/* We translate the system's EWOULDBLOCK error into EAGAIN.
 	   The GNU C library always defines EWOULDBLOCK==EAGAIN.

sysdeps/unix/sparc/start.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1991,92,93,94,95,96,97,2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1997,2004,2012 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
@@ -52,9 +52,7 @@
 
 /* The first piece of initialized data.  */
 int __data_start = 0;
-#ifdef HAVE_WEAK_SYMBOLS
 weak_alias (__data_start, data_start)
-#endif
 
 extern void __libc_init (int argc, char **argv, char **envp) __THROW;
 extern int main (int argc, char **argv, char **envp) __THROW;

sysdeps/unix/sparc/sysdep.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 1994, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1994, 1997, 2012 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
@@ -25,12 +25,7 @@
 
 .text
 .align 2
-#undef syscall_error
-#ifdef NO_UNDERSCORES
 __syscall_error:
-#else
-syscall_error:
-#endif
 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
 	/* We translate the system's EWOULDBLOCK error into EAGAIN.
 	   The GNU C library always defines EWOULDBLOCK==EAGAIN.

sysdeps/unix/sparc/sysdep.h

@@ -22,12 +22,10 @@
 
 #ifdef	__ASSEMBLER__
 
-#ifdef	NO_UNDERSCORES
 /* Since C identifiers are not normally prefixed with an underscore
    on this system, the asm identifier `syscall_error' intrudes on the
    C name space.  Make sure we use an innocuous name.  */
 #define	syscall_error	C_SYMBOL_NAME(__syscall_error)
-#endif
 
 #ifdef PIC
 #define SETUP_PIC_REG(reg, tmp)						\

sysdeps/unix/start.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 93, 1995-1998, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 93, 1995-1998, 2000, 2012 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
@@ -40,9 +40,7 @@
 
 /* The first piece of initialized data.  */
 int __data_start = 0;
-#ifdef HAVE_WEAK_SYMBOLS
 weak_alias (__data_start, data_start)
-#endif
 
 #ifdef	DUMMIES
 #define	ARG_DUMMIES	DUMMIES,
@@ -69,13 +67,6 @@ _start ()
   start1 ();
 }
 
-#ifndef NO_UNDERSCORES
-/* Make an alias called `start' (no leading underscore, so it can't
-   conflict with C symbols) for `_start'.  This is the name vendor crt0.o's
-   tend to use, and thus the name most linkers expect.  */
-asm (".set start, __start");
-#endif
-
 #endif
 
 /* ARGSUSED */

sysdeps/unix/sysv/i386/sysdep.h

@@ -1,4 +0,0 @@
-/* System V does not precede the asm names of C symbols with a `_'.  */
-#define	NO_UNDERSCORES
-
-#include <sysdeps/unix/i386/sysdep.h>

sysdeps/unix/x86_64/sysdep.S

@@ -1,4 +1,4 @@
-/* Copyright (C) 2001, 2002, 2004, 2005, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2001,2002,2004,2005,2011,2012 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
@@ -30,12 +30,7 @@
 .globl C_SYMBOL_NAME(errno)
 .globl syscall_error
 
-#undef syscall_error
-#ifdef NO_UNDERSCORES
 __syscall_error:
-#else
-syscall_error:
-#endif
 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
 	/* We translate the system's EWOULDBLOCK error into EAGAIN.
 	   The GNU C library always defines EWOULDBLOCK==EAGAIN.

sysdeps/x86_64/sysdep.h

@@ -29,10 +29,6 @@
 #define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
 #define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
 
-/* In ELF C symbols are asm symbols.  */
-#undef	NO_UNDERSCORES
-#define NO_UNDERSCORES
-
 
 /* Define an entry point visible from C.  */
 #define	ENTRY(name)							      \
@@ -67,13 +63,11 @@
 #define CALL_MCOUNT		/* Do nothing.  */
 #endif
 
-#ifdef	NO_UNDERSCORES
 /* Since C identifiers are not normally prefixed with an underscore
    on this system, the asm identifier `syscall_error' intrudes on the
    C name space.  Make sure we use an innocuous name.  */
 #define	syscall_error	__syscall_error
 #define mcount		_mcount
-#endif
 
 #define	PSEUDO(name, syscall_name, args)				      \
 lose:									      \