Having linking problems with atomic_inc(), atomic_dec_and_test() in user app, help!
trini at kernel.crashing.org
Sat Jan 5 06:04:03 EST 2002
On Fri, Jan 04, 2002 at 06:44:03PM +0100, Michael Schmitz wrote:
> > >> Also, what does "relocation truncated to fit: R_PPC_REL24
> > atomic_inc(atomic_t
> > >> *)" mean?
> > >
> > >About as much as 'unresolved external reference'. atomic_inc isn't
> > defined
> > >in the scope of your code. Look at the kernel headers; it might be
> > inside
> > >#ifdef __KRENEL__ (actually it is).
> > I see... when I wrote the code using Red Hat, this was not the case. I
> > assumed
> > things would be similar under all Linuxes... apparently a bad
> > assumption.
A userspace app using <asm/*.h> and <linux/*.h> is quite probably a bug.
If you need something from the kernel, make a local copy and never,
ever, ever, reference it directly, since it can change on you.
Tom Rini (TR1265)
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