Re: ptrace PTRACE_PEEKUSER behavior

[Anoop]

Quoting Roland McGrath <roland@xxxxxxxxxx>:

> 'struct user' is really a virtual structure layout, and never exists
> anywhere as an actual struct.  It's really just defining the argument
> values that can be used in PEEKUSR/POKEUSR calls.

But the powerpc ptrace code returns the FPRs & FPSCR though they are  
not part of user struct.

CHECK_FULL_REGS(child->thread.regs);
if (index < PT_FPR0) {
		tmp = ptrace_get_reg(child, (int) index);
} else { <=============
		flush_fp_to_thread(child);
		tmp = ((unsigned long *)child->thread.fpr)[index - PT_FPR0];
}
ret = put_user(tmp,(unsigned long __user *) data);

Does this mandate inclusion of floating point set in powerpc user struct?

Regards,
- Anoop

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