Re: [PATCH v3] perf: tests: Disable breakpoint tests on ARM (32-bit)

[Will Deacon]

On Mon, Dec 03, 2018 at 11:11:36AM -0800, Florian Fainelli wrote:
> breakpoint tests on the ARM 32-bit kernel are broken in several ways.
> 
> The breakpoint length requested does not necessarily match whether the
> function address has the Thumb bit (bit 0) set or not, and this does
> matter to the ARM kernel hw_breakpoint infrastructure. See [1] for
> background.
> 
> [1]: https://lkml.org/lkml/2018/11/15/205
> 
> As Will indicated, the overflow handling would require single-stepping
> which is not supported at the moment. Just disable those tests for the
> ARM 32-bit platforms and update the comment above to explain these
> limitations.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
> ---
> Changes in v3:
> 
> - directly incorporate Will's comment, Will can you add your
>   Signed-off-by?

Of course:

Co-developed-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>

Will