GMP-5.0.0 problems with gcd_1.asm on Apple with fixes

[Philip McLaughlin]

On Jan 15, 2010, at 7:25 AM, Jack Howarth wrote:

>   Could you try the patch I proposed at...
> 
> http://gmplib.org/list-archives/gmp-bugs/2010-January/001787.html
> 
> on top of stock gmp 5.0.0? This is sufficient to eliminate all of the
> build and testsuite failures for ABI=64 on darwin10 without resorting
> to any other changes.


Jack,

I added your mpn/x86_64/darwin.m4 patch to a stock copy of GMP-5.0.0 and ./configure, make completes
without errors.

However, during 'make check'  the segmentation fault in t-fat still occurs on my system. Fix #2 is still needed.

Phil

>>>> Fix #2: the fix for this error was suggested in the file "redc_1.asm", where the stack pointer
>>                  needs to be aligned for a secondary call. Adding the instruction
>> 
>> 		sub	$8, %rsp                   C maintain ABI required rsp alignment
>> 
>> just before the instruction
>> 
>> 		CALL(	mpn_modexact_1_odd)
>> 
>> which is then followed by
>> 
>> 		add	$8, %rsp
>> 
>> fixes the fault and "make check" runs without errors.
>>