Hi David,
On Tue, Nov 18, 2014 at 06:32:55AM +0000, David Long wrote:
> From: "David A. Long" <dave.l...@linaro.org>
>
> Add HAVE_REGS_AND_STACK_ACCESS_API feature for arm64.
[...]
> diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
> index d3e782a..24cc048 100644
> --- a/arch/arm64/include/asm/ptrace.h
> +++ b/arch/arm64/include/asm/ptrace.h
> @@ -111,6 +111,8 @@ struct pt_regs {
> u64 syscallno;
> };
>
> +#define MAX_REG_OFFSET (offsetof(struct pt_regs, orig_x0))
Is orig_x0 actually useful to this API? If not, we could instead operate on
the user_pt_regs structure, and define the maximum offset in terms of sizeof
that.
> +#define ARM_cpsr pstate
> +#define ARM_pc pc
> +#define ARM_sp sp
> +#define ARM_lr regs[30]
> +#define ARM_fp regs[29]
> +#define ARM_x28 regs[28]
> +#define ARM_x27 regs[27]
[...]
I don't think we need these #defines.
Will
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