[PATCH] hp-timing for ppc32/64

[Daniel Jacobowitz]

On Tue, Nov 15, 2005 at 08:32:16AM +1100, Benjamin Herrenschmidt wrote:
> 
> > On x86 they only implement hp-timing on i686 and newer based on the "Time 
> > Stamp Counter" and the "read time-stamp counter" instruction. Since they 
> > only have one "kind" of timebase they don't need to access dl_hwcap in 
> > hp-timing. This is also true for alpha, ia64, sparc, X86_64 and powerpc64. 
> > It would be true for ppc32 except for the 601 and 403 chips ...
> 
> How do they know that they are running on i686 ?

If they weren't built for i686-linux, they disable hp-timing.  Then
some distributions arrange for hwcaps to select a useful library in
this case (/lib/i686).

-- 
Daniel Jacobowitz
CodeSourcery, LLC