[patch] libstdc++/61841 odr-use pthread_create in std::thread constructor

Jonathan Wakely jwakely@redhat.com
Wed Aug 13 19:02:00 GMT 2014


On 13/08/14 20:47 +0200, Jakub Jelinek wrote:
>On Wed, Aug 13, 2014 at 07:40:57PM +0100, Jonathan Wakely wrote:
>> This should fix the Hurd bug in PR61841 as well as the problem
>> described in https://gcc.gnu.org/ml/gcc/2013-09/msg00196.html
>>
>> Tested x86_64-linux, committed to trunk.
>>
>> This is not suitable for the branches as it requires a new exported
>> symbol. We could maybe just add some other odr-use of pthread_create,
>> but it would probably be optimized away anyway.
>
>E.g. __asm ("" : : "r" (&pthread_create)); would not be optimized away.

Good idea - thanks. Do we want to do that instead of adding the new
exported function I've added on trunk?



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