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GLIBC_PROVIDES[]dnl See aclocal.m4 in the top level source directory.
# Local preconfigure fragment for sysdeps/csky
case "$machine" in
csky*)
abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
sed -n 's/^#define __CSKYABI__ \(.*\)/\1/p'`
hard_float=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
sed -n 's/^#define __CSKY_HARD_FLOAT__ \(.*\)/\1/p'`
hard_float_sf=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
sed -n 's/^#define __CSKY_HARD_FLOAT_FPU_SF__ \(.*\)/\1/p'`
hard_float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
sed -n 's/^#define __CSKY_HARD_FLOAT_ABI__ \(.*\)/\1/p'`
case "$abi" in
1)
AC_MSG_ERROR([glibc does not support abiv1 yet], [1])
;;
2)
machine=abiv2
;;
*)
AC_MSG_ERROR([Unknown abi], [1])
;;
esac
# __CSKY_HARD_FLOAT_ABI__ was added on gcc 11 to specify whether
# -mfloat-abi=hard is set. On older gcc, the float ABI is defined solely
# with __CSKY_HARD_FLOAT__. If __CSKY_HARD_FLOAT__ is set, it can be
# either a hard-float ABI (gcc older than 11, or gcc11 -mfloat-abi=hard
# (__CSKY_HARD_FLOAT_ABI__ is set) or -mfloat-abi=softfp
# (__CSKY_HARD_FLOAT_ABI__ is not set). To be compatible with older gcc,
# use __CSKY_HARD_FLOAT_FPU_SF__ identify if -mfloat-abi is supported,
# because it is added to gcc at the same time as -mfloat-abi.
if test -n "$hard_float"; then
if test -z "$hard_float_sf"; then
with_fp_cond=1
else
if test -n "$hard_float_abi"; then
with_fp_cond=1
else
with_fp_cond=0
fi
fi
else
with_fp_cond=0
fi
base_machine=csky
machine=csky/$machine
AC_DEFINE_UNQUOTED([CSKYABI], [$abi])
AC_DEFINE_UNQUOTED([CSKY_HARD_FLOAT], [$with_fp_cond])
;;
esac
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