On Sun, Nov 25, 2007 at 02:01:09PM -0800, Roland McGrath wrote:
> This makes ptrace_request handle all the ptrace requests that wake
> up the traced task. These do low-level ptrace implementation magic
> that is not arch-specific and should be kept out of arch code. The
> implementations on each arch usually do the same thing. The new
> generic code makes use of the arch_has_single_step macro and generic
> entry points to handle PTRACE_SINGLESTEP.
Nice, I've been trying to get people to move this to common code for
a while :)
> +#ifdef PTRACE_SINGLESTEP
> +#define is_singlestep(request) ((request) == PTRACE_SINGLESTEP)
> +#else
> +#define is_singlestep(request) 0
> +#endif
> +
> +#ifdef PTRACE_SYSEMU
> +#define is_sysemu_singlestep(request) ((request) == PTRACE_SYSEMU_SINGLESTEP)
> +#else
> +#define is_sysemu_singlestep(request) 0
> +#endif
Could we by any chance just force every architecture using generic code
to implement PTRACE_SINGLESTEP and PTRACE_SYSEMU? This will lead to
both far less messy code and a more consistant user interface.
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