Re: [PATCH] perf: ARM: Record the user-mode PC in the call chain.

2013-06-28 Thread Sukadev Bhattiprolu
Will Deacon [will.dea...@arm.com] wrote: | On Thu, Jun 20, 2013 at 04:17:06AM +0100, Jed Davis wrote: | > On Tue, Jun 18, 2013 at 02:13:19PM +0100, Will Deacon wrote: | > > On Fri, Jun 14, 2013 at 12:21:11AM +0100, Jed Davis wrote: | > > > With this change, we no longer lose the innermost entry in

Re: [PATCH] perf: ARM: Record the user-mode PC in the call chain.

2013-06-20 Thread Will Deacon
On Thu, Jun 20, 2013 at 04:17:06AM +0100, Jed Davis wrote: > On Tue, Jun 18, 2013 at 02:13:19PM +0100, Will Deacon wrote: > > On Fri, Jun 14, 2013 at 12:21:11AM +0100, Jed Davis wrote: > > > With this change, we no longer lose the innermost entry in the user-mode > > > part of the call chain. See

Re: [PATCH] perf: ARM: Record the user-mode PC in the call chain.

2013-06-19 Thread Jed Davis
On Tue, Jun 18, 2013 at 02:13:19PM +0100, Will Deacon wrote: > On Fri, Jun 14, 2013 at 12:21:11AM +0100, Jed Davis wrote: > > With this change, we no longer lose the innermost entry in the user-mode > > part of the call chain. See also the x86 port, which includes the ip. > > > > It's possible to

Re: [PATCH] perf: ARM: Record the user-mode PC in the call chain.

2013-06-18 Thread Will Deacon
On Fri, Jun 14, 2013 at 12:21:11AM +0100, Jed Davis wrote: > With this change, we no longer lose the innermost entry in the user-mode > part of the call chain. See also the x86 port, which includes the ip. > > It's possible to partially work around this problem by post-processing > the data to us

[PATCH] perf: ARM: Record the user-mode PC in the call chain.

2013-06-13 Thread Jed Davis
With this change, we no longer lose the innermost entry in the user-mode part of the call chain. See also the x86 port, which includes the ip. It's possible to partially work around this problem by post-processing the data to use the PERF_SAMPLE_IP value, but this works only if the CPU wasn't in