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Remove configure tests for some linker -z options
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Fri, 6 Nov 2015 00:19:37 +0000
- Subject: Remove configure tests for some linker -z options
- Authentication-results: sourceware.org; auth=none
There are configure tests for the linker -z nodelete, -z nodlopen and
-z initfirst options. These options were added in binutils 2.11, so
the tests are obsolete; this patch removes them.
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
2015-11-05 Joseph Myers <joseph@codesourcery.com>
* configure.ac (libc_cv_z_nodelete): Remove configure test.
(libc_cv_z_nodlopen): Likewise.
(libc_cv_z_initfirst): Likewise.
* configure: Regenerated.
diff --git a/configure b/configure
index 71800c6..01f5075 100755
--- a/configure
+++ b/configure
@@ -5472,102 +5472,6 @@ if test $libc_cv_cc_with_libunwind = yes; then
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z nodelete" >&5
-$as_echo_n "checking for linker that supports -z nodelete... " >&6; }
-libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
- libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z nodelete"`
- if test -n "$libc_linker_check"; then
- cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
- -Wl,--enable-new-dtags,-z,nodelete -nostdlib -nostartfiles
- -fPIC -shared -o conftest.so conftest.c
- 1>&5'
- { { eval echo "\"\$as_me\":${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_linker_feature=yes
- fi
- rm -f conftest*
- fi
-fi
-if test $libc_linker_feature = yes; then
- libc_cv_z_nodelete=yes
-else
- as_fn_error $? "linker with -z nodelete support required" "$LINENO" 5
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
-$as_echo "$libc_linker_feature" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z nodlopen" >&5
-$as_echo_n "checking for linker that supports -z nodlopen... " >&6; }
-libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
- libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z nodlopen"`
- if test -n "$libc_linker_check"; then
- cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
- -Wl,--enable-new-dtags,-z,nodlopen -nostdlib -nostartfiles
- -fPIC -shared -o conftest.so conftest.c
- 1>&5'
- { { eval echo "\"\$as_me\":${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_linker_feature=yes
- fi
- rm -f conftest*
- fi
-fi
-if test $libc_linker_feature = yes; then
- libc_cv_z_nodlopen=yes
-else
- as_fn_error $? "linker with -z nodlopen support required" "$LINENO" 5
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
-$as_echo "$libc_linker_feature" >&6; }
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z initfirst" >&5
-$as_echo_n "checking for linker that supports -z initfirst... " >&6; }
-libc_linker_feature=no
-if test x"$gnu_ld" = x"yes"; then
- libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z initfirst"`
- if test -n "$libc_linker_check"; then
- cat > conftest.c <<EOF
-int _start (void) { return 42; }
-EOF
- if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
- -Wl,--enable-new-dtags,-z,initfirst -nostdlib -nostartfiles
- -fPIC -shared -o conftest.so conftest.c
- 1>&5'
- { { eval echo "\"\$as_me\":${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_linker_feature=yes
- fi
- rm -f conftest*
- fi
-fi
-if test $libc_linker_feature = yes; then
- libc_cv_z_initfirst=yes
-else
- as_fn_error $? "linker with -z initfirst support required" "$LINENO" 5
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
-$as_echo "$libc_linker_feature" >&6; }
-
ASFLAGS_config=
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether --noexecstack is desirable for .S files" >&5
$as_echo_n "checking whether --noexecstack is desirable for .S files... " >&6; }
diff --git a/configure.ac b/configure.ac
index c3ebba3..3fdf992 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1208,18 +1208,6 @@ if test $libc_cv_cc_with_libunwind = yes; then
AC_DEFINE(HAVE_CC_WITH_LIBUNWIND)
fi
-LIBC_LINKER_FEATURE([-z nodelete], [-Wl,--enable-new-dtags,-z,nodelete],
- [libc_cv_z_nodelete=yes],
- [AC_MSG_ERROR(linker with -z nodelete support required)])
-
-LIBC_LINKER_FEATURE([-z nodlopen], [-Wl,--enable-new-dtags,-z,nodlopen],
- [libc_cv_z_nodlopen=yes],
- [AC_MSG_ERROR(linker with -z nodlopen support required)])
-
-LIBC_LINKER_FEATURE([-z initfirst], [-Wl,--enable-new-dtags,-z,initfirst],
- [libc_cv_z_initfirst=yes],
- [AC_MSG_ERROR(linker with -z initfirst support required)])
-
ASFLAGS_config=
AC_CACHE_CHECK(whether --noexecstack is desirable for .S files,
libc_cv_as_noexecstack, [dnl
--
Joseph S. Myers
joseph@codesourcery.com