svn commit: r279937 - in head/sys/powerpc: include powerpc

[Nathan Whitehorn]

On 03/12/15 14:22, Konstantin Belousov wrote:
> On Thu, Mar 12, 2015 at 09:15:39PM +0000, Nathan Whitehorn wrote:
>> Author: nwhitehorn
>> Date: Thu Mar 12 21:15:38 2015
>> New Revision: 279937
>> URL: https://svnweb.freebsd.org/changeset/base/279937
>>
>> Log:
>>    Provide VSX context in ucontext(3) API.
>>
>> Modified:
>>    head/sys/powerpc/include/ucontext.h
>>    head/sys/powerpc/powerpc/exec_machdep.c
>>
>> Modified: head/sys/powerpc/include/ucontext.h
>> ==============================================================================
>> --- head/sys/powerpc/include/ucontext.h	Thu Mar 12 20:14:48 2015	(r279936)
>> +++ head/sys/powerpc/include/ucontext.h	Thu Mar 12 21:15:38 2015	(r279937)
>> @@ -46,6 +46,7 @@ typedef struct __mcontext {
>>   	uint32_t	mc_av[2];
>>   	register_t	mc_frame[42];
>>   	uint64_t	mc_fpreg[33];
>> +	uint64_t	mc_vsxfpreg[32];	/* low-order half of VSR0-31 */
>>   } mcontext_t __aligned(16);
>>   
>>   #if defined(_KERNEL) && defined(__powerpc64__)
>> @@ -60,6 +61,7 @@ typedef struct __mcontext32 {
>>   	uint32_t	mc_av[2];
>>   	uint32_t	mc_frame[42];
>>   	uint64_t	mc_fpreg[33];
>> +	uint64_t	mc_vsxfpreg[32];	/* low-order half of VSR0-31 */
>>   } mcontext32_t __aligned(16);
>>   #endif
> It looks as if you broken the ABI compatibility by the change.  Am I wrong ?
>

That is correct. It's a tier-2 platform and -CURRENT, so I'm not sure 
it's worth the compatibility shims. I'm happy to add them if you think 
otherwise.
-Nathan