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[build] Remove LIB_TLS_SPEC on Solaris
- From: Rainer Orth <ro at CeBiTec dot Uni-Bielefeld dot DE>
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 25 Apr 2014 10:07:15 +0200
- Subject: [build] Remove LIB_TLS_SPEC on Solaris
- Authentication-results: sourceware.org; auth=none
When looking at badly formatted output from gcc/configure, I noticed
that all of LIB_TLS_SPEC on Solaris can go: since Solaris 10,
__tls_get_addr/___tls_get_addr live in libc, no need for a separate
support library.
Bootstrapped without regressions on i386-pc-solaris2.1[01] and
sparc-sun-solaris2.1[01], installed on mainline.
Rainer
2014-04-24 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (tga_func): Remove.
(LIB_TLS_SPEC): Remove.
* configure: Regenerate.
* config.in: Regenerate.
* config/sol2.h (LIB_SPEC): Don't use LIB_TLS_SPEC.
# HG changeset patch
# Parent 91f6c1404a228a21bd83ab9be036268f35573daa
Remove LIB_TLS_SPEC on Solaris
diff --git a/gcc/config.in b/gcc/config.in
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -1697,12 +1697,6 @@
#endif
-/* Define to the library containing __tls_get_addr/___tls_get_addr. */
-#ifndef USED_FOR_TARGET
-#undef LIB_TLS_SPEC
-#endif
-
-
/* The linker hash style */
#ifndef USED_FOR_TARGET
#undef LINKER_HASH_STYLE
diff --git a/gcc/config/sol2.h b/gcc/config/sol2.h
--- a/gcc/config/sol2.h
+++ b/gcc/config/sol2.h
@@ -115,7 +115,6 @@ along with GCC; see the file COPYING3.
#define LIB_SPEC \
"%{!symbolic:\
%{pthreads|pthread:-lpthread} \
- %{pthreads|pthread|fprofile-generate*:" LIB_TLS_SPEC "} \
%{p|pg:-ldl} -lc}"
#ifndef CROSS_DIRECTORY_STRUCTURE
diff --git a/gcc/configure b/gcc/configure
--- a/gcc/configure
+++ b/gcc/configure
@@ -23306,13 +23306,8 @@ foo: .long 25
;;
i[34567]86-*-* | x86_64-*-*)
case "$target" in
- i[34567]86-*-solaris2.*)
+ i[34567]86-*-solaris2.* | x86_64-*-solaris2.1[0-9]*)
on_solaris=yes
- tga_func=___tls_get_addr
- ;;
- x86_64-*-solaris2.1[0-9]*)
- on_solaris=yes
- tga_func=__tls_get_addr
;;
*)
on_solaris=no
@@ -23587,7 +23582,6 @@ foo: .long 25
case "$target" in
sparc*-sun-solaris2.*)
on_solaris=yes
- tga_func=__tls_get_addr
;;
*)
on_solaris=no
@@ -23711,101 +23705,6 @@ if test $gcc_cv_as_tls = yes; then
set_have_as_tls=yes
fi
fi
-case "$target" in
- # TLS was introduced in the Solaris 9 FCS release. Support for GNU-style
- # TLS on x86 was only introduced in Solaris 9 4/04, replacing the earlier
- # Sun style that Sun ld and GCC don't support any longer.
- *-*-solaris2.*)
- ld_tls_support=yes
-
- save_LIBS="$LIBS"
- save_LDFLAGS="$LDFLAGS"
- LIBS=
- LDFLAGS=
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking library containing $tga_func" >&5
-$as_echo_n "checking library containing $tga_func... " >&6; }
- # Before Solaris 10, __tls_get_addr (SPARC/x64) resp. ___tls_get_addr
- # (32-bit x86) only lived in libthread, so check for that. Keep
- # set_have_as_tls if found, disable if not.
- as_ac_Search=`$as_echo "ac_cv_search_$tga_func" | $as_tr_sh`
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing $tga_func" >&5
-$as_echo_n "checking for library containing $tga_func... " >&6; }
-if { as_var=$as_ac_Search; eval "test \"\${$as_var+set}\" = set"; }; then :
- $as_echo_n "(cached) " >&6
-else
- ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $tga_func ();
-int
-main ()
-{
-return $tga_func ();
- ;
- return 0;
-}
-_ACEOF
-for ac_lib in '' thread; do
- if test -z "$ac_lib"; then
- ac_res="none required"
- else
- ac_res=-l$ac_lib
- LIBS="-l$ac_lib $ac_func_search_save_LIBS"
- fi
- if ac_fn_c_try_link "$LINENO"; then :
- eval "$as_ac_Search=\$ac_res"
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext
- if { as_var=$as_ac_Search; eval "test \"\${$as_var+set}\" = set"; }; then :
- break
-fi
-done
-if { as_var=$as_ac_Search; eval "test \"\${$as_var+set}\" = set"; }; then :
-
-else
- eval "$as_ac_Search=no"
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-eval ac_res=\$$as_ac_Search
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-eval ac_res=\$$as_ac_Search
-if test "$ac_res" != no; then :
- test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-else
- set_have_as_tls=no
-fi
-
- ld_tls_libs="$LIBS"
- # Clear LIBS if we cannot support TLS.
- if test $set_have_as_tls = no; then
- LIBS=
- fi
- # Always define LIB_TLS_SPEC, even without TLS support.
-
-cat >>confdefs.h <<_ACEOF
-#define LIB_TLS_SPEC "$LIBS"
-_ACEOF
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIBS" >&5
-$as_echo "$LIBS" >&6; }
-
- LIBS="$save_LIBS"
- LDFLAGS="$save_LDFLAGS"
- ;;
-esac
if test $set_have_as_tls = yes ; then
$as_echo "#define HAVE_AS_TLS 1" >>confdefs.h
diff --git a/gcc/configure.ac b/gcc/configure.ac
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -2935,13 +2935,8 @@ foo: .long 25
;;
i[34567]86-*-* | x86_64-*-*)
case "$target" in
- i[34567]86-*-solaris2.*)
+ i[34567]86-*-solaris2.* | x86_64-*-solaris2.1[0-9]*)
on_solaris=yes
- tga_func=___tls_get_addr
- ;;
- x86_64-*-solaris2.1[0-9]*)
- on_solaris=yes
- tga_func=__tls_get_addr
;;
*)
on_solaris=no
@@ -3217,7 +3212,6 @@ foo: .long 25
case "$target" in
sparc*-sun-solaris2.*)
on_solaris=yes
- tga_func=__tls_get_addr
;;
*)
on_solaris=no
@@ -3313,37 +3307,6 @@ else
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
[set_have_as_tls=yes])
fi
-case "$target" in
- # TLS was introduced in the Solaris 9 FCS release. Support for GNU-style
- # TLS on x86 was only introduced in Solaris 9 4/04, replacing the earlier
- # Sun style that Sun ld and GCC don't support any longer.
- *-*-solaris2.*)
- ld_tls_support=yes
-
- save_LIBS="$LIBS"
- save_LDFLAGS="$LDFLAGS"
- LIBS=
- LDFLAGS=
-
- AC_MSG_CHECKING(library containing $tga_func)
- # Before Solaris 10, __tls_get_addr (SPARC/x64) resp. ___tls_get_addr
- # (32-bit x86) only lived in libthread, so check for that. Keep
- # set_have_as_tls if found, disable if not.
- AC_SEARCH_LIBS([$tga_func], [thread],, [set_have_as_tls=no])
- ld_tls_libs="$LIBS"
- # Clear LIBS if we cannot support TLS.
- if test $set_have_as_tls = no; then
- LIBS=
- fi
- # Always define LIB_TLS_SPEC, even without TLS support.
- AC_DEFINE_UNQUOTED(LIB_TLS_SPEC, "$LIBS",
- [Define to the library containing __tls_get_addr/___tls_get_addr.])
- AC_MSG_RESULT($LIBS)
-
- LIBS="$save_LIBS"
- LDFLAGS="$save_LDFLAGS"
- ;;
-esac
if test $set_have_as_tls = yes ; then
AC_DEFINE(HAVE_AS_TLS, 1,
[Define if your assembler and linker support thread-local storage.])
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University