[PATCH?] Separate pthread patches, #2 take 2.

Dave Korn dave.korn.cygwin@googlemail.com
Fri Jun 5 03:04:00 GMT 2009


Dave Korn wrote:
> Corinna Vinschen wrote:
>> On Jun  4 02:52, Dave Korn wrote:
>>> Dave Korn wrote:
>>>> Dave Korn wrote:
>>>>>   The attached patch implements ilockexch and ilockcmpexch, using the inline
>>>>> asm definition from __arch_compare_and_exchange_val_32_acq in
>>>>> glibc-2.10.1/sysdeps/i386/i486/bits/atomic.h, trivially expanded inline rather
>>>>> than in its original preprocessor macro form.
>>>>>
>>>>>   It generates incorrect code.
>>>>   This much looks like it's probably a compiler bug.  
>>>   Let's see whether anyone else agrees:
>>>
>>>         http://gcc.gnu.org/ml/gcc/2009-06/msg00053.html
>> When you checked in this change, I'll create a 1.7.0-49 test release.
> 
>   Am off to a meeting now; won't get a chance until late tonight.


  Sorry, aint gonna be tonight either.  See timestamp in GMT+0100 plus blood
alcohol level for more details :-)  As I mentioned earlier, this is a special
weekend for us here where I live.

    cheersh,
      DaveK



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