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SubjectRe: [PATCH] i386 rw_semaphores fix
On Tue, Apr 10, 2001 at 06:12:12PM -0700, Linus Torvalds wrote:
>
>
> On Wed, 11 Apr 2001, Andi Kleen wrote:
> >
> > Fixup for user space is probably not that nice (CMPXCHG is used there by
> > linuxthreads)
>
> In user space I'm not convinced that you couldn't do the same thing
> equally well by just having the proper dynamically linked library. You'd
> not get in-lined lock primitives, but that's probably fine.

It's currently done this way, ld-linux.so looks in a special "686" path when
the ELF vector mentions it, otherwise normal path. There is a special 686
version of glibc and linuxthread. Just it's a very complicated and disk
space chewing solution for a simple problem (some distributions are starting
to drop support for 386 because of that)

-Andi
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