mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
56b223c1c8
__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. Reviewed-by: Mao Han <han_mao@linux.alibaba.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
55 lines
1.7 KiB
Plaintext
55 lines
1.7 KiB
Plaintext
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 "$abi" in
|
|
1)
|
|
echo "glibc does not support abiv1 yet" >&2
|
|
exit 1
|
|
;;
|
|
2)
|
|
machine=abiv2
|
|
;;
|
|
*)
|
|
echo "Unknown abi" >&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# __CSKY_HARD_FLOAT_ABI__ was added on gcc 11 to specify whether
|
|
# -mfloat-abi=hard is set. On older gcc, the float ABI is defined solely
|
|
# with __CSKY_HARD_FLOAT__. If __CSKY_HARD_FLOAT__ is set, it can be
|
|
# either a hard-float ABI (gcc older than 11, or gcc11 -mfloat-abi=hard
|
|
# (__CSKY_HARD_FLOAT_ABI__ is set) or -mfloat-abi=softfp
|
|
# (__CSKY_HARD_FLOAT_ABI__ is not set). To be compatible with older gcc,
|
|
# use __CSKY_HARD_FLOAT_FPU_SF__ identify if -mfloat-abi is supported,
|
|
# because it is added to gcc at the same time as -mfloat-abi.
|
|
if test -n "$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
|
|
|
|
$as_echo "#define CSKYABI $abi" >>confdefs.h
|
|
$as_echo "#define CSKY_HARD_FLOAT $with_fp_cond" >>confdefs.h
|
|
;;
|
|
esac
|