Re: [uml-devel] Re: UML/2.6.14-rc3 doesn't work fixes

[Al Viro <viro@ftp.linux.org.uk>]

On Tue, Oct 04, 2005 at 01:19:33PM +0200, Blaisorblade wrote:
> > extra-$(CONFIG_MODE_TT) += unmap.o
> > $(obj)/unmap.o: _c_flags = $(call unprofile,$(CFLAGS))
> Where went objcopy -G switcheroo?
> 
> Possibly (it doesn't link into glibc) it's trivially ok, but please make sure 
> as the original fixed bug was environment-dependant (it happened only on some 
> Gentoo NPTL-only systems, and maybe the problem disappeared in later glibc 
> versions), so you wouldn't see the breakage.

For one thing, it doesn't link into anything; for another, NPTL or not, it
won't generate any non-trivial sections - it's one static variable (*not*
per-thread, etc.) and one function with a bunch of inline assembler in
it.  Built as kernel object.

IOW, this sucker is as self-contained as it get - .text, .bss, the only
relocation being reference to static variable from code (i.e. offset relative
to wherever .bss ends up) and the only non-local symbol being switcheroo.


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