[ale] Kernel cross compilation

[mike at trausch.us]

On 09/19/2012 08:37 AM, Matt Hessel wrote:
> The best way to compile is to use cross compilation on ubuntu or
> similar.  The ending kernel isn't really any different than if you
> compiled it on the PI, just doesn't take 7 hours.
> 
> This is because you have to download the libraries for the architecture
> and use it in the compilation process.

Only if you're compiling userspace things, as well.

If you're just building the kernel, no libraries are necessary; the
host's libc and math libs will be used for the gcc cross compiler and
binutils, but the cross compiler doesn't need libraries for the target
--- the kernel provides all its functions internally (e.g., is compiled
with GCC in so-called "freestanding" mode).

	--- Mike

-- 
A man who reasons deliberately, manages it better after studying Logic
than he could before, if he is sincere about it and has common sense.
                                   --- Carveth Read, “Logic”

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