Re: [RFC][PATCH] Kprobes for ARM

[William Cohen <wcohen at redhat dot com>]

Quentin Barnes wrote:
> This is a fully functional Kprobes implementation for ARM as a
> patch set against the 2.6.20.4 kernel.
>
> This implementation includes kprobes, jprobes, and kretprobes.
> Abhishek Sagar contributed the initialization, undef handling, fault
> handling, jprobes, and kretprobes code.  The blame for the remaining
> core kprobes code falls to me.
>
> This code has no known problems and has received some basic testing
> through systemtap testsuite.  It should, however, be considered
> raw prototype quality.  I'm sure it has a considerable quantity of
> undiscovered bugs.
>
> This mail exceeds Linus' recommended size of 40KB for a patch
> mailing.  It is ~70KB in size.  However, I have noticed that others
> on this mailing list have exceeded the limit before.  If this size
> is an imposition, please let me know.  I'll be setting this project
> up on a remote site, but haven't yet.  This will probably be my
> only patch mailing of this size.
>
> I'll provide more detailed information in some following mails.
>
> Quentin

Hi Quentin,

Now that you have a kprobes implementation for ARM are you thinking about the 
modifications for the SystemTap translator to support cross compiling probes for 
ARM target?  There is a bugzilla #4186 looking at this issue for cross compiling 
subarchitectures e.g. i686 compiling probes (workstation) for i586 machine (olpc 
machine).

-Will