Re: [RFC] Proposal for ptrace improvements

[Tejun Heo]

Hello,

On Tue, Mar 01, 2011 at 11:14:14PM +0100, Denys Vlasenko wrote:
> There may be reasons to have PTRACE_SEIZE operation split like that.
> For one, this allows debugger to do PTRACE_CONT, and later issue
> PTRACE_INTERRUPT to stop the tracee again. PTRACE_INTERRUPT stop may
> be better for some scenarios where debugger wants to make the stop
> invisible to the parent, or when debugger wants to stop just one
> thread of the process.

PTRACE_SEIZE can be used like PTRACE_INTERRUPT.  It works whether the
tracee is attached or not.

Thanks.

-- 
tejun
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