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

[Andreas Krebbel <krebbel at linux dot vnet dot ibm dot com>]

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-