prototyping linux kernel-side gdbstub for userspace

[Daniel Jacobowitz]

On Fri, Jun 19, 2009 at 10:32:04PM -0400, Frank Ch. Eigler wrote:
> Hi -
> 
> I'm slowly assembling a prototype gdb stub for debugging user-space
> programs, based on utrace, for possible eventual inclusion in the
> linux kernel.  For the moment, it is a toy alternative to ptrace() for
> targeting existing processes, and it's not done even for that.  But
> before too long though it should be able to use uprobes (q.v.) as a
> kernel-side breakpointing facility using the Z packets, and maybe even
> support agent expressions, multithreaded processes, and multiprocess
> debugging.

Hi Frank,

For those of us with less context, why do it this way instead of
exposing those features for a userspace gdbserver?  I can't say I'm
thrilled to have this in kernel space.

-- 
Daniel Jacobowitz
CodeSourcery