* Re: rand64 change
2013-07-12 21:48 rand64 change Vince Weaver
@ 2013-07-12 21:46 ` Dave Jones
0 siblings, 0 replies; 2+ messages in thread
From: Dave Jones @ 2013-07-12 21:46 UTC (permalink / raw)
To: Vince Weaver; +Cc: trinity
On Fri, Jul 12, 2013 at 05:48:37PM -0400, Vince Weaver wrote:
>
> I noticed the following change. The perf_event_open() syscall has various
> 64-bit fields (that are 64-bit even on 32-bit machines) that I set with
> rand64(). Do I need to change something to get that to work?
Ah, I forgot about that. No, I'll change it so it returns u64 even on 32bit.
Dave
^ permalink raw reply [flat|nested] 2+ messages in thread
* rand64 change
@ 2013-07-12 21:48 Vince Weaver
2013-07-12 21:46 ` Dave Jones
0 siblings, 1 reply; 2+ messages in thread
From: Vince Weaver @ 2013-07-12 21:48 UTC (permalink / raw)
To: Dave Jones; +Cc: trinity
I noticed the following change. The perf_event_open() syscall has various
64-bit fields (that are 64-bit even on 32-bit machines) that I set with
rand64(). Do I need to change something to get that to work?
Vince
commit c5bcbb108fe920851b853180849153ebcacb300a
Author: Dave Jones <davej@redhat.com>
Date: Fri Jul 12 16:09:54 2013 -0400
limit rand64 to 32bits when building on 32bit.
I might later change this to make this function return u64 if necessary,
but for now, the rand64() consumers on 32bit don't care because
they work on ulongs.
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