Re: needs writeback on ptrace

[Paul Mundt <lethal@linux-sh.org>]

On Fri, Feb 15, 2008 at 04:40:03PM +0900, Hideo Saito wrote:
> The chang was not effective. If the following code at
> flush_cache_page() in cache-sh4.c is removed, gdb works.
> 
>         if ((address^phys) & alias_mask) {
>                 /* Loop 4K of the D-cache */
>                 flush_cache_4096(
>                         CACHE_OC_ADDRESS_ARRAY | (address & alias_mask),
>                         phys);
>                 /* Loop another 4K of the D-cache */
>                 flush_cache_4096(
>                         CACHE_OC_ADDRESS_ARRAY | (phys & alias_mask),
>                         phys);
>         }
> 
> modified as follows:
>         if (1) {
>             ...
>         }
> 
> I think that the breakpoint should always be written to the physical memory.

What are the values of address, phys, and alias_mask on your platform in
this case?