[PATCH v2 3/6] Add getauxval.

[David Miller]

From: Richard Henderson <rth@twiddle.net>
Date: Sat, 17 Mar 2012 10:06:32 -0700

> 	* misc/getauxval.c: New file.
> 	* misc/Makefile (routines): Add it.
> 	* misc/Versions (GLIBC_2.16): Export it.
> 	* misc/sysv/auxv.h (getauxval): Declare.
> 	* elf/dl-support.c (_dl_auxv): New variable.
> 	(_dl_aux_init): Initialize it.

If you provide this then you could use only getauxval() in libgcc
and therefore have code that works on Solaris too.

Therefore the specialized gethwcap interface seems a little bit
superfluous.