linux-kernel - Re: [PATCH V3 0/3] Add new PowerPC specific ELF core notes

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Message-ID: <53996E41.4070309@linux.vnet.ibm.com>
Date:	Thu, 12 Jun 2014 14:39:21 +0530
From:	Anshuman Khandual <khandual@...ux.vnet.ibm.com>
To:	Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	peterz@...radead.org, akpm@...ux-foundation.org,
	tglx@...utronix.de, mikey@...ling.org, james.hogan@...tec.com,
	avagin@...nvz.org, Paul.Clothier@...tec.com, palves@...hat.com,
	oleg@...hat.com, dhowells@...hat.com, davej@...hat.com,
	davem@...emloft.net, Michael Neuling <mikey@...ling.org>,
	Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH V3 0/3] Add new PowerPC specific ELF core notes

On 05/23/2014 08:45 PM, Anshuman Khandual wrote:
> 	This patch series adds five new ELF core note sections which can be
> used with existing ptrace request PTRACE_GETREGSET/SETREGSET for accessing
> various transactional memory and miscellaneous register sets on PowerPC
> platform. Please find a test program exploiting these new ELF core note
> types on a POWER8 system.
> 
> RFC: https://lkml.org/lkml/2014/4/1/292
> V1:  https://lkml.org/lkml/2014/4/2/43
> V2:  https://lkml.org/lkml/2014/5/5/88
> 
> Changes in V3
> =============
> (1) Added two new error paths in every TM related get/set functions when regset
>     support is not present on the system (ENODEV) or when the process does not
>     have any transaction active (ENODATA) in the context
> 
> (2) Installed the active hooks for all the newly added regset core note types
> 
> Changes in V2
> =============
> (1) Removed all the power specific ptrace requests corresponding to new NT_PPC_*
>     elf core note types. Now all the register sets can be accessed from ptrace
>     through PTRACE_GETREGSET/PTRACE_SETREGSET using the individual NT_PPC* core
>     note type instead
> (2) Fixed couple of attribute values for REGSET_TM_CGPR register set
> (3) Renamed flush_tmreg_to_thread as flush_tmregs_to_thread
> (4) Fixed 32 bit checkpointed GPR support
> (5) Changed commit messages accordingly
> 
> Outstanding Issues
> ==================
> (1) Running DSCR register value inside a transaction does not seem to be saved
>     at thread.dscr when the process stops for ptrace examination.

Hey Ben,

Any updates on this patch series ?

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