[lldb-dev] Changing our focus Linux target system

[Todd Fiala]

Hi all,

Up until now, we (Google/Android) had been focused on Ubuntu 12.04 x86_64
LTS, using a custom libedit (July 2013) and gcc 4.8.2 as our primary target
Linux system.

As of today, I've upgraded our focus to Ubuntu 14.04 x86_64, building with
the clang 3.5 package from Ubuntu and using the stock system libedit.  I
happen to focus on using the gold linker, but I do switch between that and
the bfd linker.

For debug builds using cmake and ninja, I get the following timing numbers
on my newly-built Ubuntu 14.04 x86_64-based box on a 32-core machine with a
clean build of lldb:

g++ 4.8.2/ld.bfd (stock) linker: 7.5 minutes
g++ 4.8.2/ld.gold linker: 6.0 minutes
clang-3.5/ld.gold linker: 4.9 minutes
-- 
-Todd
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