RFC: libkse*.a in 7.0
Alfred Perlstein
alfred at freebsd.org
Wed Nov 28 14:06:37 PST 2007
* Daniel Eischen <deischen at freebsd.org> [071128 14:05] wrote:
> On Wed, 28 Nov 2007, Robert Watson wrote:
>
> >
> >On Wed, 28 Nov 2007, Brooks Davis wrote:
> >
> >>A number of people have proposed a direction in 8.0 that would remove
> >>support for the syscalls and kernel data structures required by libkse.
> >>Apparently this would enable significant simplification of portions of
> >>the kernel, but I have no deeply held personal opinion. The intent is
> >>that if that happens, alternate versions of the necessicary dynamic
> >>libraries will be supplied in updated compat#x packages. This will
> >>address most consumers. The one set of consumers that would not be
> >>addressed is those who have statically linked, threaded binaries using
> >>libkse.
> >
> >It's worth noting that some other mainstream operating systems work hard
> >to disallow static linking for precisely this sort of reason -- when I
> >last checked, Mac OS X had only one statically linked binary, init, and it
> >may well be that launchd is dynamically linked. This is part of a very
> >explicit policy that the defined ABI for applications is *not* the system
> >call layer, but rather, the library interfaces, which gives greater
> >flexibility to modify the system call interface as needed.
>
> I argued for removing libc.a as well as lib<thread>.a a couple of
> years ago and was met with opposition, mostly because statically
> linked applications are faster.
>
> I think we should remove libthr.a, libkse.a and libc.a, so flame on!
I agree, as long as someone can flip a switch and turn it back on
for ISVs.
-Alfred
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