linux-kernel - Re: [PATCH v6 0/7] perf: Cross arch annotate + few miscellaneous fixes

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Message-Id: <57D034BC.2090101@linux.vnet.ibm.com>
Date:   Wed, 7 Sep 2016 21:09:40 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
To:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        acme@...nel.org
Cc:     peterz@...radead.org, mingo@...hat.com,
        alexander.shishkin@...ux.intel.com, treeze.taeung@...il.com,
        naveen.n.rao@...ux.vnet.ibm.com, markus@...ppelsdorf.de,
        chris.ryder@....com, pawel.moll@....com, mhiramat@...nel.org,
        rmk+kernel@....linux.org.uk, jolsa@...nel.org, mpe@...erman.id.au,
        hemant@...ux.vnet.ibm.com, namhyung@...nel.org,
        Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
Subject: Re: [PATCH v6 0/7] perf: Cross arch annotate + few miscellaneous
 fixes

Hello,

Any update on this?

-Ravi

On Friday 19 August 2016 06:29 PM, Ravi Bangoria wrote:
> Currently Perf annotate support code navigation (branches and calls)
> only when run on the same architecture where perf.data was recorded.
> But, for example, record on powerpc server and annotate on client's
> x86 desktop is not supported.
>
> This patchset enables cross arch annotate. Currently I've used x86
> and arm instructions which are already available and added support
> for powerpc.
>
> Additionally this patch series also contains few other related fixes.
>
> Patches are prepared on top of acme/perf/core and tested it with x86
> and powerpc only.
>
> Note for arm:
> I don't have arm test machine. As suggested by Russell in one of the
> review comment, I've copied all instructions from default table to
> arm table. This way it want break tool on arm but cleanup is needed
> for x86 specific instructions added in arm table.
>
> Example:
>
>   Record on powerpc:
>   $ ./perf record -a
>
>   Report -> Annotate on x86:
>   $ ./perf report -i perf.data.powerpc --vmlinux vmlinux.powerpc
>
> Changes in v6:
>   - Instead of adding only those instructions defined in #ifdef __arm__,
>     add all instructions from default table to arm table.
>
> v5 link:
>   https://lkml.org/lkml/2016/8/19/35
>
> Naveen N. Rao (1):
>   perf annotate: Add support for powerpc
>
> Ravi Bangoria (6):
>   perf: Define macro for normalized arch names
>   perf annotate: Add cross arch annotate support
>   perf annotate: Do not ignore call instruction with indirect target
>   perf annotate: Show raw form for jump instruction with indirect target
>   perf annotate: Support jump instruction with target as second operand
>   perf annotate: Fix jump target outside of function address range
>
>  tools/perf/arch/common.c           |  36 ++--
>  tools/perf/arch/common.h           |  11 ++
>  tools/perf/builtin-top.c           |   2 +-
>  tools/perf/ui/browsers/annotate.c  |   8 +-
>  tools/perf/ui/gtk/annotate.c       |   2 +-
>  tools/perf/util/annotate.c         | 330 +++++++++++++++++++++++++++++++------
>  tools/perf/util/annotate.h         |  10 +-
>  tools/perf/util/unwind-libunwind.c |   4 +-
>  8 files changed, 327 insertions(+), 76 deletions(-)
>