samples/powerpc-e500v2-linux-gnuspe/reported.by
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2740 8f5f36b3473b
parent 2290 ba82eb173bd4
permissions -rw-r--r--
arch/arm: ARM supports the softfp convention

ARM compilers can be built for soft float (software only, floats in
core registers), hard float (uses floating point instructions, floats
in FPU registers), or the half-way house softfp (uses floating point
instructions, floats in core registers).

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>
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reporter_name="Anthony Foiani <anthony.foiani@gmail.com>"
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reporter_url="http://sourceware.org/ml/crossgcc/2010-09/msg00100.html"
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reporter_comment="This is a sample config file for Freescale e500v2 processors (e.g., MPC8548,
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MPC8572). It uses eglibc (for e500/SPE patches) and a recent gcc (4.6.0,
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for e500v2 DPFP support) and will generate appropriate dual-precision
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floating point instructions by default.
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Note: If building a Linux kernel with this toolchain, you will want to make
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sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE ABI/instructions
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from getting into the kernel (which is currently unsupported). At this time,
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the kernel build system properly passes those two options, but older kernels
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were only passing -mno-spe by default."