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[Bug nptl/10686] Request for new TLS field for x86 and x86_64
- From: "ian at airs dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Sun, 12 May 2013 17:32:00 +0000
- Subject: [Bug nptl/10686] Request for new TLS field for x86 and x86_64
- Auto-submitted: auto-generated
- References: <bug-10686-131 at http dot sourceware dot org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=10686
--- Comment #2 from Ian Lance Taylor <ian at airs dot com> 2013-05-12 17:32:00 UTC ---
Currently the transactional memory support has five words in the TCB. For the
split stack support on x86 and x86_64 I have been using the last of those five
words, as Richard Henderson told me the TM support was not using it. So
assuming the TM folks are still agreeable, I think the simplest approach at
this point would be to reduce the TM words to 4 and make the last one be a
split stack word. The TM words are the __private_tm field in tcbhead_t.
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