On Wed, Jun 10, 2009 at 02:38:18PM +0530, K.Prasad wrote:
> Modify process handling code to recognise hardware debug registers during copy
> and flush operations. Introduce a new TIF_DEBUG task flag to indicate a
> process's use of debug register. Load the debug register values into a
> new CPU during initialisation.
>
> Signed-off-by: K.Prasad <pra...@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/process.c | 15 +++++++++++++++
> arch/powerpc/kernel/smp.c | 2 ++
> 2 files changed, 17 insertions(+)
>
> Index: linux-2.6-tip.hbkpt/arch/powerpc/kernel/process.c
> ===================================================================
> --- linux-2.6-tip.hbkpt.orig/arch/powerpc/kernel/process.c
> +++ linux-2.6-tip.hbkpt/arch/powerpc/kernel/process.c
> @@ -50,6 +50,7 @@
> #include <asm/syscalls.h>
> #ifdef CONFIG_PPC64
> #include <asm/firmware.h>
> +#include <asm/hw_breakpoint.h>
> #endif
> #include <linux/kprobes.h>
> #include <linux/kdebug.h>
> @@ -254,8 +255,10 @@ void do_dabr(struct pt_regs *regs, unsig
> 11, SIGSEGV) == NOTIFY_STOP)
> return;
>
> +#ifndef CONFIG_PPC64
> if (debugger_dabr_match(regs))
> return;
> +#endif
Won't this disable the check for breakpoints set by xmon - but I don't
see anything in this patch series to convert xmon to use the new
breakpoint interface instead.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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