[LTO] Request for testing: Last merge from trunk before final merge

[Marc Glisse]

On Wed, 30 Sep 2009, Richard Guenther wrote:

> On Wed, Sep 30, 2009 at 7:36 PM, Rainer Orth
> <ro@techfak.uni-bielefeld.de> wrote:
>> +FAIL: gcc.dg/lto/20090729 c_lto_20090729_0.o-c_lto_20090729_1.o link
>> +UNRESOLVED: gcc.dg/lto/20090729 c_lto_20090729_0.o-c_lto_20090729_1.o execute -w
>>
>> output is:
>> ld: warning: symbol `i' has differing sizes:
>>        (file c_lto_20090729_0.o value=0x8; file c_lto_20090729_1.o value=0x4);
>>        c_lto_20090729_0.o definition taken
>> ld: warning: symbol `j' has differing sizes:
>>        (file c_lto_20090729_0.o value=0x4; file c_lto_20090729_1.o value=0x8);
>>        c_lto_20090729_1.o definition taken
>>
>> This seems like it cannot work.
>
> Ah.  We don't expect the linker to complain here - GNU ld accepts different
> size common sections.  The testcase is reduced from broken SPEC CPU 2000
> source ...
>
> If you happen to know a linker option that would silence the warning ...

http://docs.sun.com/app/docs/doc/817-1984/chapter2-88783?a=view#chapter2-7
seems to recommend the -t linker flag.


-- 
Marc Glisse