Re: [tip: perf/core] perf tests: Disable bp_signal testing for arm64

[Leo Yan]

On Tue, Oct 22, 2019 at 02:14:25PM +0100, Will Deacon wrote:

[...]

> > diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c
> > index c1c2c13..166f411 100644
> > --- a/tools/perf/tests/bp_signal.c
> > +++ b/tools/perf/tests/bp_signal.c
> > @@ -49,14 +49,6 @@ asm (
> >  	"__test_function:\n"
> >  	"incq (%rdi)\n"
> >  	"ret\n");
> > -#elif defined (__aarch64__)
> > -extern void __test_function(volatile long *ptr);
> > -asm (
> > -	".globl __test_function\n"
> > -	"__test_function:\n"
> > -	"str x30, [x0]\n"
> > -	"ret\n");
> > -
> >  #else
> >  static void __test_function(volatile long *ptr)
> >  {
> > @@ -302,10 +294,15 @@ bool test__bp_signal_is_supported(void)
> >  	 * stepping into the SIGIO handler and getting stuck on the
> >  	 * breakpointed instruction.
> >  	 *
> > +	 * Since arm64 has the same issue with arm for the single-step
> > +	 * handling, this case also gets suck on the breakpointed
> > +	 * instruction.
> 
> Freudian slip?

:D  sorry for typo: s/suck/stuck.

Thanks for review and will send a patch to fix it.

Thanks,
Leo Yan