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Re: [Qemu-devel] [PATCH 1/8] tls: require compiler support for __thread
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 1/8] tls: require compiler support for __thread |
Date: |
Tue, 13 Jan 2015 20:48:33 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 |
On 13/01/2015 19:40, Peter Maydell wrote:
> On 13 January 2015 at 17:52, Paolo Bonzini <address@hidden> wrote:
>> The block layer is now using __thread unconditionally.
>
> Where? I did a quick grep for __thread and (other than stuff in
> the *-user code and some Win32 specific files) there's no use of
> __thread outside the DEFINE_TLS wrappers.
It's in the pull request.
>> Remove the
>> "fake" TLS wrappers (that actually aren't TLS on !Linux) in
>> include/qemu/tls.h, and add a testcase.
>
> What platforms have you tested on? We definitely shouldn't
> widen our use of __thread without testing it on all the
> platforms we support...
Native TLS is supported by all platforms except Windows and, I think,
OpenBSD, which will have to use GCC's emulated TLS. For Windows we
already do. OpenBSD ports will have to use a new-enough GCC (basically
depend on the GPLv3 GCC port).
Paolo
[Qemu-devel] [PATCH 2/8] rcu: add rcu library, Paolo Bonzini, 2015/01/13
[Qemu-devel] [PATCH 6/8] memory: remove assertion on memory_region_destroy, Paolo Bonzini, 2015/01/13
[Qemu-devel] [PATCH 5/8] rcu: add call_rcu, Paolo Bonzini, 2015/01/13
[Qemu-devel] [PATCH 3/8] rcu: add rcutorture, Paolo Bonzini, 2015/01/13