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Date:      Thu, 22 Mar 2007 11:24:52 -0700
From:      "Kip Macy" <kip.macy@gmail.com>
To:        "Daniel Eischen" <deischen@freebsd.org>
Cc:        Jason Evans <jasone@frebsd.org>, freebsd-threads@freebsd.org
Subject:   Re: lipthread and TLS
Message-ID:  <b1fa29170703221124l5a3be08fo6fa036866200e02c@mail.gmail.com>
In-Reply-To: <Pine.GSO.4.64.0703221410310.9927@sea.ntplx.net>
References:  <2779e6080703220210u321522c7l40cf8555cfdc2404@mail.gmail.com> <4602B28C.1020204@elischer.org> <Pine.GSO.4.64.0703221312150.9927@sea.ntplx.net> <4602C49D.3080109@frebsd.org> <Pine.GSO.4.64.0703221410310.9927@sea.ntplx.net>

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On 3/22/07, Daniel Eischen <deischen@freebsd.org> wrote:
> On Thu, 22 Mar 2007, Jason Evans wrote:
>
> > Daniel Eischen wrote:
> >> The toolchain itself should support TLS, so that's probably
> >> the place to look, as well as src/libexec/rtld-elf/.  The
> >> libpthread library does not use TLS itself, and I don't
> >> think anything (yet) uses TLS in libc or in our base system,
> >> though I could be wrong.
> >
> > malloc uses TLS.
>
> Well, I stand corrected then.  If you need to get MIPS up
> and running without TLS, you may need to hack malloc()
> and anything else that uses TLS to temporarily use
> pthread_[gs]etspecific()...

You won't be able to use TLS unless:
a) initialization works in libc - it was broken on sparc64 until
recently for both static and dynamic linking
b) your linker supports it - the current binutils is very much out of
date, users needing it will have to build a private toolchain



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