On Sat, Mar 25, 2006 at 01:21:00PM -0800, Marc Singer wrote:
> The change of the zero_unbind and eth_unbind calls to use __exit
> breaks the driver on ARM. It causes a difficult to locate error:
>
> LD .tmp_vmlinux1
> local symbol 0: discarded in section `.exit.text' from drivers/built-in.o
> drivers/built-in.o(.init.text+0x3880): In function `release_mem':
> drivers/char/tty_io.c:1690: relocation truncated to fit: R_ARM_PC24 .exit.text
> make: *** [.tmp_vmlinux1] Error 1
>
> or a variant. My understanding is that this doesn't work because
> the section where this function is stored has become discardable.
>
> With this change, the gadget driver is unlinkable on my target, and
> I suspect is broken on ARMs as well, but I haven't verified that.
>
> On ARM, .exit.text is marked discardable:
>
> /DISCARD/ : { /* Exit code and data */
> *(.exit.text)
> *(.exit.data)
> *(.exitcall.exit)
> }
>
> I'll post to lak to see what they think. I don't see why this
> would be the case.
I think I was a little off base with this. The problem, apparently,
is that bind () calls unbind () which is not allowed when unbind is in
the exit section.
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