On Fri, 22 Mar 2019, [email protected] wrote:
>
> + PERF_REG_X86_XMM15 = 62,
> +
> + /* All registers include the XMMX registers */
> + PERF_REG_X86_MAX = PERF_REG_X86_XMM15 + 2,
Ergo: PERF_REG_X86_MAX == 64
> -#define REG_RESERVED (~((1ULL << PERF_REG_X86_MAX) - 1ULL))
> +#define REG_RESERVED \
> + (PERF_REG_X86_MAX == 64 ? 0 : ~((1ULL << PERF_REG_X86_MAX)) - 1ULL)
So what the heck is this conditional for?
But now 32bit has also access to the upper 8 GPRs simply because
REG_RESERVED is now 0 and REG_NOSUPPORT is not excluding them either.
Thanks,
tglx
