glibc/sysdeps/s390/configure

# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 # Local configure fragment for sysdeps/s390.

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_tbegin" >&5
printf %s "checking for __builtin_tbegin... " >&6; }
if test ${libc_cv_gcc_builtin_tbegin+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e) cat > conftest.c <<\EOF
#include <htmintrin.h>
void testtransaction ()
{
  if (__builtin_tbegin (0) == _HTM_TBEGIN_STARTED)
    {
      __builtin_tend ();
    }
}
EOF
if { ac_try='${CC-cc} -mhtm -O2 -S conftest.c -o - | grep -w tbegin > /dev/null'
  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  (eval $ac_try) 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; } ;
then
  libc_cv_gcc_builtin_tbegin=yes
else
  libc_cv_gcc_builtin_tbegin=no
fi
rm -f conftest*  ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_builtin_tbegin" >&5
printf "%s\n" "$libc_cv_gcc_builtin_tbegin" >&6; }

if test "$libc_cv_gcc_builtin_tbegin" = no ; then
   critic_missing="$critic_missing The used GCC has no support for __builtin_tbegin, which is needed for lock-elision on target S390."
fi



{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for S390 vector instruction support" >&5
printf %s "checking for S390 vector instruction support... " >&6; }
if test ${libc_cv_asm_s390_vx+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

void testvecinsn ()
{
    __asm__ (".machine \"z13\" \n\t"
	     ".machinemode \"zarch_nohighgprs\" \n\t"
	     "vistrbs %%v16,%%v17 \n\t"
	     "locghie %%r1,0" : :);
}

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_asm_s390_vx=yes
else case e in #(
  e) libc_cv_asm_s390_vx=no ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_vx" >&5
printf "%s\n" "$libc_cv_asm_s390_vx" >&6; }
if test "$libc_cv_asm_s390_vx" = yes ;
then
  printf "%s\n" "#define HAVE_S390_VX_ASM_SUPPORT 1" >>confdefs.h

else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Use binutils with vector-support in order to use optimized implementations." >&5
printf "%s\n" "$as_me: WARNING: Use binutils with vector-support in order to use optimized implementations." >&2;}
fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for S390 vector support in gcc" >&5
printf %s "checking for S390 vector support in gcc... " >&6; }
if test ${libc_cv_gcc_s390_vx+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

void testvecclobber ()
{
  __asm__ ("" : : : "v16");
}

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_gcc_s390_vx=yes
else case e in #(
  e) libc_cv_gcc_s390_vx=no ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_s390_vx" >&5
printf "%s\n" "$libc_cv_gcc_s390_vx" >&6; }
if test "$libc_cv_gcc_s390_vx" = yes ;
then
  printf "%s\n" "#define HAVE_S390_VX_GCC_SUPPORT 1" >>confdefs.h

fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for S390 arch13 zarch instruction support" >&5
printf %s "checking for S390 arch13 zarch instruction support... " >&6; }
if test ${libc_cv_asm_s390_arch13+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

void testinsn (char *buf)
{
    __asm__ (".machine \"arch13\" \n\t"
	     ".machinemode \"zarch_nohighgprs\" \n\t"
	     "lghi %%r0,16 \n\t"
	     "mvcrl 0(%0),32(%0) \n\t"
	     "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
	     : : "a" (buf) : "memory", "r0");
}

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_asm_s390_arch13=yes
else case e in #(
  e) libc_cv_asm_s390_arch13=no ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_arch13" >&5
printf "%s\n" "$libc_cv_asm_s390_arch13" >&6; }
if test "$libc_cv_asm_s390_arch13" = yes ;
then
  printf "%s\n" "#define HAVE_S390_ARCH13_ASM_SUPPORT 1" >>confdefs.h

fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for S390 z10 zarch instruction support as default" >&5
printf %s "checking for S390 z10 zarch instruction support as default... " >&6; }
if test ${libc_cv_asm_s390_min_z10_zarch+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

void testinsn (void *a, void *b, int n)
{
    __asm__ ("exrl %2,1f \n\t"
	     "j 2f \n\t"
	     "1: mvc 0(1,%0),0(%1) \n\t"
	     "2:"
	     : : "a" (a), "a" (b), "d" (n)
	     : "memory", "cc");
}

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_asm_s390_min_z10_zarch=yes
else case e in #(
  e) libc_cv_asm_s390_min_z10_zarch=no ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z10_zarch" >&5
printf "%s\n" "$libc_cv_asm_s390_min_z10_zarch" >&6; }
if test "$libc_cv_asm_s390_min_z10_zarch" = yes ;
then
  printf "%s\n" "#define HAVE_S390_MIN_Z10_ZARCH_ASM_SUPPORT 1" >>confdefs.h

fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for S390 z196 zarch instruction support as default" >&5
printf %s "checking for S390 z196 zarch instruction support as default... " >&6; }
if test ${libc_cv_asm_s390_min_z196_zarch+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

float testinsn (double e)
{
    float d;
    __asm__ ("ledbra %0,5,%1,4" : "=f" (d) : "f" (e) );
    return d;
}

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_asm_s390_min_z196_zarch=yes
else case e in #(
  e) libc_cv_asm_s390_min_z196_zarch=no ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z196_zarch" >&5
printf "%s\n" "$libc_cv_asm_s390_min_z196_zarch" >&6; }
if test "$libc_cv_asm_s390_min_z196_zarch" = yes ;
then
  printf "%s\n" "#define HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT 1" >>confdefs.h

fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for S390 z13 zarch instruction support as default" >&5
printf %s "checking for S390 z13 zarch instruction support as default... " >&6; }
if test ${libc_cv_asm_s390_min_z13_zarch+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int testinsn (void)
{
    int i;
    __asm__ ("vl %%v16,0(%%r15)\n\t"
	     "vlgvf %0,%%v16,0"
	     : "=d" (i) : : "memory", "v16");
    return i;
}

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_asm_s390_min_z13_zarch=yes
else case e in #(
  e) libc_cv_asm_s390_min_z13_zarch=no ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z13_zarch" >&5
printf "%s\n" "$libc_cv_asm_s390_min_z13_zarch" >&6; }
if test "$libc_cv_asm_s390_min_z13_zarch" = yes ;
then
  printf "%s\n" "#define HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT 1" >>confdefs.h

fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for S390 arch13 zarch instruction support as default" >&5
printf %s "checking for S390 arch13 zarch instruction support as default... " >&6; }
if test ${libc_cv_asm_s390_min_arch13_zarch+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

void testinsn (char *buf)
{
    __asm__ ("lghi %%r0,16 \n\t"
	     "mvcrl 0(%0),32(%0) \n\t"
	     "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
	     : : "a" (buf) : "memory", "r0");
}

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  libc_cv_asm_s390_min_arch13_zarch=yes
else case e in #(
  e) libc_cv_asm_s390_min_arch13_zarch=no ;;
esac
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_arch13_zarch" >&5
printf "%s\n" "$libc_cv_asm_s390_min_arch13_zarch" >&6; }
if test "$libc_cv_asm_s390_min_arch13_zarch" = yes ;
then
  printf "%s\n" "#define HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT 1" >>confdefs.h

fi



{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc on s390x" >&5
printf %s "checking if $CC is sufficient to build libc on s390x... " >&6; }
if test ${libc_cv_compiler_ok_on_s390x+y}
then :
  printf %s "(cached) " >&6
else case e in #(
  e)
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

#if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
#error insufficient compiler for building on s390x
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :
  libc_cv_compiler_ok_on_s390x=yes
else case e in #(
  e) libc_cv_compiler_ok_on_s390x=no ;;
esac
fi
rm -f conftest.err conftest.i conftest.$ac_ext ;;
esac
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok_on_s390x" >&5
printf "%s\n" "$libc_cv_compiler_ok_on_s390x" >&6; }
if test "$libc_cv_compiler_ok_on_s390x" != yes; then
   critic_missing="$critic_missing On s390x, GCC >= 7.1.0 is required."
fi

test -n "$critic_missing" && as_fn_error $? "
*** $critic_missing" "$LINENO" 5