svn commit: r261455 - in stable/10: lib/libc/sparc64/fpu lib/libc/xdr sys/amd64/pci sys/amd64/vmm/intel sys/arm/arm sys/arm/at91 sys/arm/broadcom/bcm2835 sys/arm/econa sys/arm/freescale/imx sys/arm...

[Ian Lepore]

On Tue, 2014-02-04 at 03:36 +0000, Eitan Adler wrote:
> Author: eadler
> Date: Tue Feb  4 03:36:42 2014
> New Revision: 261455
> URL: http://svnweb.freebsd.org/changeset/base/261455
> 
> Log:
>   MFC r258779,r258780,r258787,r258822:
>   
>   Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this
>   shifts into the sign bit.  Instead use (1U << 31) which gets the
>   expected result.
>   
>   Similar to the (1 << 31) case it is not defined to do (2 << 30).
>   
>   This fix is not ideal as it assumes a 32 bit int, but does fix the issue
>   for most cases.
>   
>   A similar change was made in OpenBSD.
> 

This is causing arm breakage, I think r258787 needs to be mfc'd to fix.

-- Ian