[Buildroot] [PATCH 2/8] arch: Refactor BR2_SOFT_FLOAT into per-architecture options
thomas.petazzoni at free-electrons.com
Mon Jul 8 14:02:04 UTC 2013
Dear Peter Korsgaard,
On Sun, 07 Jul 2013 22:24:05 +0200, Peter Korsgaard wrote:
> Does avr32 SoCs with hard float even exist? Does
> uClibc/kernel/.. support it? If not, we could just make this a hidden
According to http://en.wikipedia.org/wiki/AVR32, the AVR32 AP7 never
had a floating point unit, only the UC3, but I believe Linux was only
running on AP7 cores, but I'm not sure. Anyway, I'll make AVR32
> Thomas> +config BR2_POWERPC_SOFT_FLOAT
> Thomas> + bool "Use soft-float"
> Thomas> + default y
> Thomas> + select BR2_SOFT_FLOAT
> Thomas> + help
> Thomas> + If your target CPU does not have a Floating Point Unit (FPU)
> Thomas> + or a kernel FPU emulator, but you still wish to support
> Thomas> + floating point functions, then everything will need to be
> Thomas> + compiled with soft floating point support (-msoft-float).
> We didn't use to default to soft float for powerpc, as most cores have a
Correct, will fix. As a followup to this patch set, it'd be nice if
someone knowledgeable in PPC stuff did a similar handling of FPU stuff.
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
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