[PATCH u-boot v4 14/36] build: support building with Link Time Optimizations

[Tom Rini]

On Thu, May 20, 2021 at 01:24:03PM +0200, Marek Behún wrote:

> Add plumbing for building U-Boot with Link Time Optimizations.
> 
> When building with LTO, $(PLATFORM_LIBS) has to be in --whole-archive /
> --no-whole-archive group, otherwise some functions declared in assembly
> may not be resolved and linking may fail.
> 
> Note: clang may throw away linker list symbols it thinks are unused when
> compiling with LTO. To force these symbols to be included, we refer to
> them via the __ADDRESSABLE macro in a C file generated from compiled
> built-in.o files before linking.
> 
> Signed-off-by: Marek Behún <marek.behun at nic.cz>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 659 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20210524/4ee578bf/attachment.sig>