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authorH.J. Lu <hjl.tools@gmail.com>2012-11-21 12:31:01 -0800
committerH.J. Lu <hjl.tools@gmail.com>2012-11-21 12:34:32 -0800
commit6bfea97493900d456245ca9f29765e1f0ee9d649 (patch)
tree29187abc833cddbe02fe07b6eb96232300f9ab49 /configure
parentad35f2dd750ed3e3f483409ef50b38ea19745002 (diff)
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Properly check linker -z XXX support
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure140
1 files changed, 80 insertions, 60 deletions
diff --git a/configure b/configure
index 1927ce8..ff2d34c 100755
--- a/configure
+++ b/configure
@@ -6235,86 +6235,101 @@ if test $libc_cv_cc_with_libunwind = yes; then
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -z nodelete option" >&5
-$as_echo_n "checking for -z nodelete option... " >&6; }
-if ${libc_cv_z_nodelete+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.c <<EOF
+{ $as_echo "$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 $LDFLAGS
- -fPIC -shared -o conftest.so conftest.c
- -nostartfiles -nostdlib
- -Wl,--enable-new-dtags,-z,nodelete 1>&5'
+ if { ac_try='${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
+ 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
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_z_nodelete" >&5
-$as_echo "$libc_cv_z_nodelete" >&6; }
+{ $as_echo "$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 -z nodlopen option" >&5
-$as_echo_n "checking for -z nodlopen option... " >&6; }
-if ${libc_cv_z_nodlopen+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.c <<EOF
+{ $as_echo "$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 $LDFLAGS
- -fPIC -shared -o conftest.so conftest.c
- -nostartfiles -nostdlib
- -Wl,--enable-new-dtags,-z,nodlopen 1>&5'
+ if { ac_try='${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
+ 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
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_z_nodlopen" >&5
-$as_echo "$libc_cv_z_nodlopen" >&6; }
+{ $as_echo "$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 -z initfirst option" >&5
-$as_echo_n "checking for -z initfirst option... " >&6; }
-if ${libc_cv_z_initfirst+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.c <<EOF
+{ $as_echo "$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 $LDFLAGS
- -fPIC -shared -o conftest.so conftest.c
- -nostartfiles -nostdlib
- -Wl,--enable-new-dtags,-z,initfirst 1>&5'
+ if { ac_try='${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
+ 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
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_z_initfirst" >&5
-$as_echo "$libc_cv_z_initfirst" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
+$as_echo "$libc_linker_feature" >&6; }
# Add-on fragments can set these for other machines.
libc_commonpagesize=${libc_commonpagesize:-no}
@@ -6511,32 +6526,37 @@ if test "$libc_cv_z_combreloc" = yes; then
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -z execstack" >&5
-$as_echo_n "checking for -z execstack... " >&6; }
-if ${libc_cv_z_execstack+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.c <<EOF
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z execstack" >&5
+$as_echo_n "checking for linker that supports -z execstack... " >&6; }
+libc_linker_feature=no
+if test x"$gnu_ld" = x"yes"; then
+ libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z execstack"`
+ if test -n "$libc_linker_check"; then
+ cat > conftest.c <<EOF
int _start (void) { return 42; }
EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
- -fPIC -shared -o conftest.so conftest.c
- -Wl,-z,execstack -nostdlib
- 1>&5'
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
+ -Wl,-z,execstack -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
{ { eval echo "\"\$as_me\":${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
+ then
+ libc_linker_feature=yes
+ fi
+ rm -f conftest*
+ fi
+fi
+if test $libc_linker_feature = yes; then
libc_cv_z_execstack=yes
else
libc_cv_z_execstack=no
fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_z_execstack" >&5
-$as_echo "$libc_cv_z_execstack" >&6; }
+{ $as_echo "$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 -fpie" >&5