[Crash-utility] xencrash: crash analisys tool for Xen hypervisor

[Dave Anderson]

> Hello Itsuro,
>
> I have only briefly scanned your patch, and find it very
> interesting.  I am not at all familiar with the hypervisor
> code, but I do have a couple simple questions at this point:
>
> 1. Is it necessary to create a separate "xencrash"
>    binary?  Would it be possible to create a single
>    crash binary that can be used for both vmlinux
>    and xen-syms sessions?
>

Sorry about this -- I missed the following two parts of
the Makefile and main.c patches!

+
+xencrash: crash
+       cp -f crash xencrash


+       if (STREQ(pc->program_name, "xencrash"))
+               pc->flags |= XEN_HYPER;

However, given the above, I wonder whether it would be possible
to postpone the setting of the XEN_HYPER flag from the
setup_environment() function until later on in main() when
the command line arguments are parsed?  Wouldn't it be possible
to recognize that the xen-syms object file is the hypervisor
binary, and to set the XEN_HYPER flag at that point?

Thanks,
  Dave

>
> 2. Can you make it work with a live hypervisor system
>    in the same way the crash works with a live Linux
>    kernel?
>
> Thanks,
>   Dave
>
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