* Peter Zijlstra wrote:
> On Sat, 2009-06-27 at 15:31 +1000, Paul Mackerras wrote:
> > + if (regs) {
> > + if (current_is_64bit())
> > + perf_callchain_user_64(regs, entry);
> > + else
> > + perf_callchain_user_32(regs
On Sat, 2009-06-27 at 15:31 +1000, Paul Mackerras wrote:
> + if (regs) {
> + if (current_is_64bit())
> + perf_callchain_user_64(regs, entry);
> + else
> + perf_callchain_user_32(regs, entry);
> + }
Ingo do we need
This adds support for tracing callchains for powerpc, both 32-bit
and 64-bit, and both in the kernel and userspace, from PMU interrupt
context.
The first three entries stored for each callchain are the NIP (next
instruction pointer), LR (link register), and the contents of the LR
save area in the
