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configure.ac: don't use -msoft-float for arm64 

aarch64 toolchains do not support the -msoft-float option added by
commit 3661261f. Insted, for arm64 use -march=armv8-a+nofp+nosimd.

Reported-by: Ryan Harkin <ryan.harkin@linaro.org>
This commit is contained in:
Leif Lindholm 2015-01-28 20:17:18 +00:00
parent 9883307a52
commit 2da4171eab
1 changed files with 5 additions and 1 deletions
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6
configure.ac
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@ -678,7 +678,11 @@ fi
# that floats are a good fit to run instead of what's written in the code.
# Given that floating point unit is disabled (if present to begin with)
# when GRUB is running which may result in various hard crashes.
TARGET_CFLAGS="$TARGET_CFLAGS -msoft-float"
if test "x$target_cpu" = xarm64; then
TARGET_CFLAGS="$TARGET_CFLAGS -march=armv8-a+nofp+nosimd"
else
TARGET_CFLAGS="$TARGET_CFLAGS -msoft-float"
fi
# By default, GCC 4.4 generates .eh_frame sections containing unwind
# information in some cases where it previously did not. GRUB doesn't need