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Date:      Thu, 9 Dec 2010 13:06:40 +0100
From:      Robert Millan <rmh@debian.org>
To:        "Jayachandran C." <jchandra@freebsd.org>
Cc:        freebsd-mips@freebsd.org
Subject:   Re: [PATCH] Retrieval of TLS pointer via RDHWR
Message-ID:  <AANLkTimyqAWFo5Ddd8_UAL654iGquCMnEjFETUnsFdxO@mail.gmail.com>
In-Reply-To: <AANLkTikxHUj%2BGe3YyJOWMQne31D=uY_712Qveq=Dmh2A@mail.gmail.com>
References:  <AANLkTimg3CUk0p8YPyepiumEHvKo2F6jdVA0=1CefYrQ@mail.gmail.com> <AANLkTikxHUj%2BGe3YyJOWMQne31D=uY_712Qveq=Dmh2A@mail.gmail.com>

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2010/12/9 Jayachandran C. <jchandra@freebsd.org>:
> I'm not sure that the freebsd mips toolchain supports the __thread
> directive yet. =C2=A0Were you able to test this from C?

Yes, but not via __thread.  I wrote a small program that sets
the TLS pointer to an arbitrary value (via MIPS_SET_TLS),
then issued rdhwr instruction using C inline assembly, and
finally verified that both values are the same.

(the toolchain I'm using doesn't support __thread either,
but I submit this patch with the expectation that it can be
useful later on)

--=20
Robert Millan



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