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From: "fw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/96200] Implement __builtin_thread_pointer() and
 __builtin_set_thread_pointer() if TLS is supported
Date: Sat, 29 Aug 2020 12:57:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96200

--- Comment #8 from Florian Weimer <fw at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #7)
> Give that the tcb field is setup by the C run-time on Linux/x86, should
> it be provided by a run-time header file?

Yes, it seems reasonable to me. Ideally, it would be documented in the ABI
manual as well.=