[U-Boot] [PATCH 12/12] lib: Enable private libgcc by default

[Tom Rini]

On Thu, May 26, 2016 at 06:01:47PM +0200, Marek Vasut wrote:

> This patch decouples U-Boot binary from the toolchain on systems where
> private libgcc is available. Instead of pulling in functions provided
> by the libgcc from the toolchain, U-Boot will use it's own set of libgcc
> functions. These functions are usually imported from Linux kernel, which
> also uses it's own libgcc functions instead of the ones provided by the
> toolchain.
> 
> This patch solves a rather common problem. The toolchain can usually
> generate code for many variants of target architecture and often even
> different endianness. The libgcc on the other hand is usually compiled
> for one particular configuration and the functions provided by it may
> or may not be suited for use in U-Boot. This can manifest in two ways,
> either the U-Boot fails to compile altogether and linker will complain
> or, in the much worse case, the resulting U-Boot will build, but will
> misbehave in very subtle and hard to debug ways.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Albert Aribaud <albert.u.boot at aribaud.net>
> Cc: Masahiro Yamada <yamada.masahiro at socionext.com>
> Cc: Simon Glass <sjg at chromium.org>
> Cc: Tom Rini <trini at konsulko.com>

Reviewed-by: Tom Rini <trini at konsulko.com>

-- 
Tom
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