Re: [PATCH] ptrace: add ability to get clear_tid_address

From: Pedro Alves
Date: Tue Feb 07 2012 - 15:07:42 EST

On 02/03/2012 04:51 PM, Oleg Nesterov wrote:
> On 02/03, Pavel Emelyanov wrote:

>> Because there's no need for current to get this value of himself, but can
>> be useful for e.g. gdb.
> OK, perhaps this makes sense, I do not know.
> Jan, Pedro, do you think gdb can use PTRACE_GET_TID_ADDRESS (returns
> tracee->clear_child_tid) ?

Off hand, I'm not picturing a use. But that may well just mean I'm lacking
imagination. Andrew, Pavel, did you have a particular idea in mind when you
said it may be useful for debugging a multithreading program / gdb?

Pedro Alves
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