[PATCH v2 4/5] ptrace: add PTRACE_SYSCALL_INFO_FLAG_SET_IP

[Oleg Nesterov]

On 07/03, Renzo Davoli wrote:
>
> This flag adds support for modifying the tracee's instruction pointer.
>
> To do this, the tracer stores the new instruction pointer value in the
> instruction_pointer field of the ptrace_syscall_info structure and
> sets the PTRACE_SYSCALL_INFO_FLAG_SET_IP flag in the flags field.

But why? Who will use this feature and for what? How often?

I think the changelog should be more convincing...

Oleg.