Messages in this thread | | | Date | Fri, 11 Jul 2014 10:14:25 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH 1/4] perf: add ability to sample machine state on interrupt |
| |
On Wed, Jul 09, 2014 at 12:15:56AM +0200, Stephane Eranian wrote: > Enable capture of interrupted machine state in each > sample. > > Registers to sample are passed per event in the > sample_regs_intr bitmask. > > To sample interrupt machine state, the > PERF_SAMPLE_INTR_REGS must be passed in > sample_type.
SNIP
> index 57e9190..018939c 100644 > --- a/kernel/events/core.c > +++ b/kernel/events/core.c > @@ -4296,7 +4296,7 @@ perf_output_sample_regs(struct perf_output_handle *handle, > } > } > > -static void perf_sample_regs_user(struct perf_regs_user *regs_user, > +static void perf_sample_regs_user(struct perf_regs *regs_user, > struct pt_regs *regs) > { > if (!user_mode(regs)) { > @@ -4312,6 +4312,14 @@ static void perf_sample_regs_user(struct perf_regs_user *regs_user, > } > } > > +static void perf_sample_regs_intr(struct perf_regs *regs_user, > + struct pt_regs *regs) > +{ > + regs_user->regs = regs; > + regs_user->abi = perf_reg_abi(current);
^^^ regs_intr
jirka
| |