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

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Message-ID: <53C7A4FA.4030600@linux.vnet.ibm.com>
Date:	Thu, 17 Jul 2014 15:57:06 +0530
From:	Anshuman Khandual <khandual@...ux.vnet.ibm.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	Michael Neuling <mikey@...ling.org>, james.hogan@...tec.com,
	avagin@...nvz.org, Paul.Clothier@...tec.com, davem@...emloft.net,
	peterz@...radead.org, palves@...hat.com,
	linux-kernel@...r.kernel.org, oleg@...hat.com, dhowells@...hat.com,
	linuxppc-dev@...abs.org, davej@...hat.com,
	akpm@...ux-foundation.org, tglx@...utronix.de
Subject: Re: [PATCH V3 0/3] Add new PowerPC specific ELF core notes

On 06/12/2014 02:39 PM, Anshuman Khandual wrote:
> 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 ?

Ben,

Any updates on this patch series ?

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