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f9cd7d5d19
LLD doesn't support --{,no-}tls-get-addr-optimize.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
114 lines
3.5 KiB
Plaintext
114 lines
3.5 KiB
Plaintext
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
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$as_echo_n "checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format... " >&6; }
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if ${libc_cv_mlong_double_128ibm+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -mlong-double-128"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <float.h>
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int
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main ()
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{
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#if LDBL_MANT_DIG != 106
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# error "compiler doesn't implement IBM extended format of long double"
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#endif
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long double foobar (long double x) { return x; }
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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libc_cv_mlong_double_128ibm=yes
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else
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libc_cv_mlong_double_128ibm=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CFLAGS="$save_CFLAGS"
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mlong_double_128ibm" >&5
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$as_echo "$libc_cv_mlong_double_128ibm" >&6; }
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if test "$libc_cv_mlong_double_128ibm" = no; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
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$as_echo_n "checking whether $CC $CFLAGS supports -mabi=ibmlongdouble... " >&6; }
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if ${libc_cv_mabi_ibmlongdouble+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <float.h>
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int
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main ()
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{
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#if LDBL_MANT_DIG != 106
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# error "compiler doesn't implement IBM extended format of long double"
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#endif
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long double foobar (long double x) { return x; }
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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libc_cv_mabi_ibmlongdouble=yes
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else
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libc_cv_mabi_ibmlongdouble=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CFLAGS="$save_CFLAGS"
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mabi_ibmlongdouble" >&5
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$as_echo "$libc_cv_mabi_ibmlongdouble" >&6; }
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if test "$libc_cv_mabi_ibmlongdouble" = yes; then
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CFLAGS="$CFLAGS -mabi=ibmlongdouble"
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else
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as_fn_error $? "this configuration requires -mlong-double-128 IBM extended format support" "$LINENO" 5
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-tls-get-addr-optimize" >&5
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$as_echo_n "checking for linker that supports --no-tls-get-addr-optimize... " >&6; }
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libc_linker_feature=no
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if test x"$gnu_ld" = x"yes"; then
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libc_linker_check=`$LD -v --help 2>/dev/null | grep "\--no-tls-get-addr-optimize"`
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if test -n "$libc_linker_check"; then
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cat > conftest.c <<EOF
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int _start (void) { return 42; }
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EOF
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
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-Wl,--no-tls-get-addr-optimize -nostdlib -nostartfiles
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-fPIC -shared -o conftest.so conftest.c
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1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }
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then
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libc_linker_feature=yes
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fi
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rm -f conftest*
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fi
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fi
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if test $libc_linker_feature = yes; then
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libc_cv_tls_get_addr_optimize=yes
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else
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libc_cv_tls_get_addr_optimize=no
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
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$as_echo "$libc_linker_feature" >&6; }
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config_vars="$config_vars
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have-tls-get-addr-optimize = $libc_cv_tls_get_addr_optimize"
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ldd_rewrite_script=sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed
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