[llvmlinux] Raspberry Pi USB driver problem

Jan-Simon Moeller jsmoeller at linuxfoundation.org
Wed Dec 19 20:55:13 UTC 2012


try my branch !
Am 19.12.2012 17:17 schrieb "Tinti" <viniciustinti at gmail.com>:

> Hi,
>
> I think I have found the problem, but I don't know how to solve it.
>
> Raspberry Pi uses a SMSC95XX chip which is an USB hub and Ethernet device.
> This module is compiled statically in kernel. So, I have tried to built it
> as a module and see if I get any difference between GCC and Clang builds.
>
> It has indeed, and I really believe that it the root cause. The clang
> build does not have the "init.text" section. Neither some others that Gcc
> version has.
>
> I have tried with usbmon.ko and smsc95xx.ko. Clang produces "init.text"
> for usbmon but not for smsc95xx.ko.
>
> To reproduce just set SMSC95XX=m and use the -fno-vectorize flag to build
> Raspberry Pi in my branch.
>
> Thanks,
> Tinti
>
> --
> Vinicius Tinti
> mail => {viniciustinti at gmail.com, tinti at comp.eng.br}
> skype => {viniciustinti}
>
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