[RFC][PATCH][ld][testsuite] Add -ffat-lto-objects option to some ld tests

[Kyrill Tkachov]

On 26/11/13 14:36, H.J. Lu wrote:
> On Tue, Nov 26, 2013 at 6:32 AM, Kyrill Tkachov <kyrylo.tkachov@arm.com> wrote:
>> Hi all,
>>
>> I'm seeing some ld testsuite failures on arm-none-linux-gnueabi and
>> aarch64-none-linux-gnu after a recent gcc commit (r205065) that set
>> -fno-fat-lto-objects as the default:
>>
>> PASS->FAIL: LTO 3 symbol
>> PASS->FAIL: PR ld/12758
>> PASS->FAIL: PR ld/12760
>> PASS->FAIL: PR ld/13183
>>
>> It seems that these tests need -ffat-lto-objects, at least on arm and
>> aarch64, but I'm not sure I understand the structure of these ld tests well.
>>
>> Could someone please comment on whether this is the correct approach?
>> CC'ing H.J. since he wrote the lto.exp file.
>>
> Does -ffat-lto-objects always work when -flto is supported?
> If yes, OK for trunk.

The gcc manual says about -ffat-lto-objects: " This option is effective only 
when compiling with -flto and is ignored at link time".
I'd think that it's supposed to always work with -flto.

Thanks,
Kyrill