LTO on newlib targets w/o Gold

[Joel Sherrill]

On 02/01/2011 04:54 AM, Dave Korn wrote:
> 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.
>
Ahh. And I am using the heads of binutils, gcc, newlib, gdb, and rtems
so it is getting enabled.
>> 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.
>
There are still some rtems targets which need to finish from the
last full build.  But I will try your patches once that is done.

If it is still broken, what do you need gathered up to have a test case?

Thanks.
>      cheers,
>        DaveK


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