Re: Representing Embedded Architectures at the Kernel Summit

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On Tue, Jun 02, 2009 at 11:40:05PM +0200, Robert Schwebel wrote:
> And even with the cpu core, we usually build kernels with optimized
> toolchains for their cpu family.

I'm afraid that doesn't make a blind bit of difference to the kernel -
it passes the relevent optimization flags to gcc which tell the compiler
which instructions to use (based upon the CPU architecture) and how to
schedule those instructions (based upon the CPU type(s) chosen in the
kernel configuration.)

All that an "optimized" toolchain is is a toolchain with a different
default optimization selected.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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