[PATCH][4.8 backport] S/390: Transactional Execution support

[PATCH][4.8 backport] S/390: Transactional Execution support

[Andreas Krebbel]

Hi,

I would like to apply backports of the TX support patches to 4.8
branch.  We released 4.8 with EC12 support already but the support is
somewhat incomplete without having TX.  With these patches we will
have full EC12 support in 4.8.

The patches apply without changes but I had to add some configure
additions for auxval from Peter Bergners patch for Power.

22/04/13 [PATCH] S/390: Initial libitm support
http://gcc.gnu.org/ml/gcc-patches/2013-04/msg01214.html

21/06/13 [PATCH] S/390: Hardware transactional memory support
http://gcc.gnu.org/ml/gcc-patches/2013-06/msg01267.html

17/07/13 Re: [PATCH] S/390: Hardware transactional memory support
http://gcc.gnu.org/ml/gcc-patches/2013-07/msg00654.html

24/07/13 S/390: libitm: Use .machine to enable the HTM instructions in the assembler
http://gcc.gnu.org/ml/gcc-patches/2013-07/msg01074.html

Any veto?


Torvald, could you please consider adding backports of the following
patches to the 4.8 branch?

19/06/13 [patch] libitm: Fix handling of reentrancy in the HTM fastpath
http://gcc.gnu.org/ml/gcc-patches/2013-06/msg01132.html

20/06/13 Re: [patch] libitm: Fix handling of reentrancy in the HTM fastpath
http://gcc.gnu.org/ml/gcc-patches/2013-06/msg01188.html


Thanks!

Bye,

-Andreas-

Re: [PATCH][4.8 backport] S/390: Transactional Execution support

[Torvald Riegel]

On Thu, 2013-08-01 at 10:55 +0200, Andreas Krebbel wrote:
> Torvald, could you please consider adding backports of the following
> patches to the 4.8 branch?
> 
> 19/06/13 [patch] libitm: Fix handling of reentrancy in the HTM fastpath
> http://gcc.gnu.org/ml/gcc-patches/2013-06/msg01132.html
> 
> 20/06/13 Re: [patch] libitm: Fix handling of reentrancy in the HTM fastpath
> http://gcc.gnu.org/ml/gcc-patches/2013-06/msg01188.html

I believe Jakub already backported these two; at least he told me he was
planning to, IIRC.

Torvald

Re: [PATCH][4.8 backport] S/390: Transactional Execution support

[Jakub Jelinek]

On Thu, Aug 01, 2013 at 10:55:15AM +0200, Andreas Krebbel wrote:
> I would like to apply backports of the TX support patches to 4.8
> branch.  We released 4.8 with EC12 support already but the support is
> somewhat incomplete without having TX.  With these patches we will
> have full EC12 support in 4.8.

In your backport you've forgot to include the libitm/config/s390
directory, so I guess it is broken on 4.8 branch even more than it is on the
trunk (the pending -msoft-float issue).

	Jakub

Re: [PATCH][4.8 backport] S/390: Transactional Execution support

[Andreas Krebbel]

On 14/08/13 15:00, Jakub Jelinek wrote:
> On Thu, Aug 01, 2013 at 10:55:15AM +0200, Andreas Krebbel wrote:
>> I would like to apply backports of the TX support patches to 4.8
>> branch.  We released 4.8 with EC12 support already but the support is
>> somewhat incomplete without having TX.  With these patches we will
>> have full EC12 support in 4.8.
> 
> In your backport you've forgot to include the libitm/config/s390
> directory, so I guess it is broken on 4.8 branch even more than it is on the
> trunk (the pending -msoft-float issue).

Fixed.

-Andreas-