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Date: Sat, 4 Dec 2004 19:51:43 -0800
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From: Roland McGrath <roland@redhat.com>
To: Paul Mackerras <paulus@samba.org>
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Cc: Robert Love <rml@novell.com>, Linus Torvalds <torvalds@osdl.org>,
       David Woodhouse <dwmw2@infradead.org>,
       David Howells <dhowells@redhat.com>, linux-kernel@vger.kernel.org,
       libc-alpha@sources.redhat.com
Subject: Re: Proposal for a userspace "architecture portability" library
In-Reply-To: Paul Mackerras's message of  Sunday, 5 December 2004 12:47:05 +1100 <16818.26777.209451.685576@cargo.ozlabs.ibm.com>
X-Windows: simplicity made complex.
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> I don't think glibc exports any atomic operations.

That is true.  But it does have implementations in bits/atomic.h for many
processors, and that is under the LGPL.

> As for the semaphores and spinlocks, clearly you can use the pthread_*
> functions, but hopefully the kernel versions are a bit lighter-weight.

The pthread_spin_* functions are not inlines, but are otherwise minimal.