[RFC/PATCH 5/5] powerpc: Allow ptrace write to pt_regs trap

[Ulrich Weigand]

Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote on 05/29/2007 
08:45:24 AM:

> This patch allows a ptracer to write to the "trap" word of the
> pt_regs. This, along with the previous patch, should enable gdb
> to properly handle syscall restarting after executing a separate
> function (at least when there's no restart block).

This doesn't look sufficient.  If you want GDB to use the save/
restore style means of handling interrupted calls (like i386),
at the very least we also need the capability to *write* the
orig_gpr3 field, which is currently prohibited.  (I don't know
why this is case, though.)


Mit freundlichen Gruessen / Best Regards

Ulrich Weigand

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