[svlug] newer arm bare metal toolchain on Debian

[Ivan Sergio Borgonovo]

I'd like to test a newer gcc than the one provided by debian sid by 
gcc-arm-none-eabi (4.9).

I've an issue with -flto that may have been fixed with a newer gcc 
version, or at least that's what I could just infer since others are not 
having the same issue.

I could happily live with the older compiler since there is a 
workaround, but that implies modifying upstream code and since upstream 
is not having my same issue and I haven't completely understood why, 
upstream doesn't look it is going to accept a patch.

Up to my understanding I've these options available to get a newer arm 
cross toolchain for bare metal:
- dpkg --add-architecture arm (not sure if this is ok for bare metal)
- install linaro (or arm or CodeSourcery...) prebuilt toolchain and let 
them live in /usr/local but that seems to requires 32 bit libraries

In my experience both things are going to make a mess of my system.

Then there is this https://wiki.debian.org/CrossToolchains but seems for 
linux development and not bare metal but it is messy.

So I was wondering if I got it right or there is another way.

This is not about if it can be done, this is about maintaining it in a 
sensible way (I'd consider sensible putting pre-compiled stuff in 
/usr/local in one go if I don't have to mess with the rest of my system 
for dependency reasons).

thanks

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it