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path: root/sysdeps/loongarch/preconfigure.ac
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GLIBC_PROVIDES[]dnl See aclocal.m4 in the top level source directory.
# Local preconfigure fragment for sysdeps/loongarch

case "$machine" in
loongarch*)

    abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_\(lp64\|ilp32\).*/\1/p'`
    float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_\(soft\|single\|double\)_float.*/\1/p'`

    with_fp_cond="!defined __loongarch_soft_float"

    case "$float_abi" in
    soft)
	abi_flen=0
	AC_MSG_ERROR([loongarch does not yet support soft floating-point  ABI!!], 1)
	;;
    single)
	AC_MSG_ERROR([glibc does not yet support the single floating-point ABI!!], 1)
	;;
    double)
	abi_flen=64
	;;
    *)
	AC_MSG_ERROR([Unable to determine floating-point ABI!!], 1)
	;;
    esac

    case "$abi" in
    ilp32)
	AC_MSG_ERROR([loongarch does not yet support ilp32 ABI!!], 1)
	;;
    lp64)
	grlen=64
	machine=loongarch/lp64
	;;
    *)
	AC_MSG_ERROR([Unable to determine GRLEN!!], 1)
	;;
    esac

    AC_DEFINE_UNQUOTED([LOONGARCH_ABI_GRLEN], [$grlen])
    AC_DEFINE_UNQUOTED([LOONGARCH_ABI_FRLEN], [$abi_flen])

    base_machine=loongarch
    ;;
esac