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| From: | Brad |
| Subject: | Re: [Qemu-devel] [PATCH] qemu-thread: add TLS wrappers |
| Date: | Wed, 17 Aug 2011 00:36:39 -0400 |
| User-agent: | Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; en-US; rv:1.9.2.20) Gecko/20110804 Thunderbird/3.1.12 |
On 16/08/11 2:51 PM, Paolo Bonzini wrote:
Win32 emulated TLS is slow and is not available on all versions of GCC. Actually, Win32 does have support for decent TLS, only GCC does not map __thread to it. The good news is, it's perfectly possible to declare TLS variables with simple C code! This patch adds wrappers to qemu-thread that will use __thread on POSIX systems, and the .tls segment on Windows.
The actual use of TLS within QEMU on POSIX systems will be optional though, right?
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