Re: Why I want PTRACE_O_TRACESTOP option

[Tejun Heo]

Hello, Denys.

On Fri, Sep 09, 2011 at 07:54:50AM +0200, Denys Vlasenko wrote:
> My point is that previously, ptrace behavior was modified by setting
> options. Why don't we use this mechanism? Why we invent a different
> wheel? Ptrace is ugly as-is, why complicate it even further?
> 
> The argument was that SETOPTIONS wasn't suitable for modifying
> attach behavior, but this is fixed by "set options on SEIZE"
> patch. I don't see why we can't use options mechanist to affect
> group-stop behavior now.

The argument was that there are other more difficult issues and the
added benefit - superficial consistency - doesn't justify the
necessary complexity, and it was repeated multiple times.

Thanks.

-- 
tejun
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