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arch: add softfp support

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Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
This commit is contained in:
Yann E. MORIN"
2011-10-19 15:27:32 +13:00
committed by Michael Hope
parent 67ede2f5d4
commit 4fc56b1d14
3 changed files with 26 additions and 0 deletions
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4
scripts/functions
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@ -993,6 +993,10 @@ CT_DoBuildTargetTuple() {
CT_ARCH_FLOAT_CFLAG="-msoft-float"
CT_ARCH_WITH_FLOAT="--with-float=soft"
;;
softfp)
CT_ARCH_FLOAT_CFLAG="-mfloat-abi=softfp"
CT_ARCH_WITH_FLOAT="--with-float=softfp"
;;
esac
# Build the default kernel tuple part