RE: [patch] x86: ptrace and core-dump extensions for xstate

[Lu, Hongjiu]

> 
> On 02/04/2010 02:05 PM, Suresh Siddha wrote:
> >
> > So in the example you provided before:
> >
> >         struct iovec iov = { mybuffer, mylength };
> >         ret = ptrace(PTRACE_GETREGSET, NT_X86_XSTATE, &iov);
> >
> > You wanted to propose common data format (iov) for all of the NT_* ?
> >
> 
> How about encoding the regset number into the command, e.g.
> ptrace(PTRACE_GETREGS(NT_X86_XSTATE), length, buffer)
> 
> ... where we have ...
> 
> #define PTRACE_GETREGS(r) (((r) << 16) | PTRACE_GETREGS_CMD)
> 
> ... or something like that?
> 

I like this idea.

BTW, it should be

ptrace(PTRACE_GETREGS(NT_X86_XSTATE), pid, length, buffer)


H.J.
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