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

From: Anshuman Khandual
Date: Thu Jun 12 2014 - 05:11:34 EST


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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