sysdeps/loongarch/preconfigure.ac

   1 GLIBC_PROVIDES[]dnl See aclocal.m4 in the top level source directory.
   2 # Local preconfigure fragment for sysdeps/loongarch
   3
   4 case "$machine" in
   5 loongarch*)
   6
   7     abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_\(lp64\|ilp32\).*/\1/p'`
   8     float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_\(soft\|single\|double\)_float.*/\1/p'`
   9
  10     with_fp_cond="!defined __loongarch_soft_float"
  11
  12     case "$float_abi" in
  13     soft)
  14         abi_flen=0
  15         AC_MSG_ERROR([loongarch does not yet support soft floating-point  ABI!!], 1)
  16         ;;
  17     single)
  18         AC_MSG_ERROR([glibc does not yet support the single floating-point ABI!!], 1)
  19         ;;
  20     double)
  21         abi_flen=64
  22         ;;
  23     *)
  24         AC_MSG_ERROR([Unable to determine floating-point ABI!!], 1)
  25         ;;
  26     esac
  27
  28     case "$abi" in
  29     ilp32)
  30         AC_MSG_ERROR([loongarch does not yet support ilp32 ABI!!], 1)
  31         ;;
  32     lp64)
  33         grlen=64
  34         machine=loongarch/lp64
  35         ;;
  36     *)
  37         AC_MSG_ERROR([Unable to determine GRLEN!!], 1)
  38         ;;
  39     esac
  40
  41     AC_DEFINE_UNQUOTED([LOONGARCH_ABI_GRLEN], [$grlen])
  42     AC_DEFINE_UNQUOTED([LOONGARCH_ABI_FRLEN], [$abi_flen])
  43
  44     base_machine=loongarch
  45     ;;
  46 esac
  47