Re: New attempt at adding an disassembler to perf

From: Jiri Olsa
Date: Fri Jan 20 2017 - 08:22:27 EST


On Wed, Jan 18, 2017 at 05:41:45PM -0800, Andi Kleen wrote:
> A native disassembler in perf is very useful, in particular with perf script to trace
> instruction streams, but also for other analysis. Previously I attempted
> to do this using the udis86 library, but that was rejected because:
> - udis86 was not maintained anymore and lacking recent instructions
> - udis86 is dynamically linked and gives a runtime dependency.
> Doing this needs a full disassembler, not just a decoder, so the existing
> instruction decoder cannot be used without major changes.
>
> This patchkit addresses these issues. Intel recently released an open source version
> of the XED disassembler library, which is used in many other Intel software.
> It is very well maintained, uptodate, and supports static linking, so there is no
> runtime dependency. This version adds XED support to perf, and uses it to implement
> assembler output in perf script. It also fixes a range of issues in the previous
> version, see the individual change logs.
>
> Available in
> git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc.git perf/xed-6

the perf/xed-6 branch looks good to me..
not sure if that matches what was posted ;-)

Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>

thanks,
jirka