LTO on newlib targets w/o Gold

[Dave Korn]

On 01/02/2011 02:33, Joel Sherrill wrote:
> Hi,
> 
> There are ~100 failures on each *-rtems* target
> in the latest test runs when various lto related
> flags are on.  The symbols in questions are in the
> RTEMS libraries which are picked up via the
> -B... argument.  Other symbols from the same
> library are resolved.

  These have all cropped up since -fuse-linker-plugin became the default.

> Should LTO work with a target not using gold?

  Yes, it should, but some work is needed at the binutils end.  I am testing
the attached two patches at the moment; the idea is to have fully-debugged
support for LTO+plugin in the 2.20.1 release, to support 4.6.0 when it comes out.

    cheers,
      DaveK
-- 
Apologies if dup - ENOPATCH first time I hit send.


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