On 10/25/15 6:46 PM, Wangnan (F) wrote:
Can we (or have we already) setup some rules for licensing? Which part
should be GPL? Who has the response to decide it?
in my mind the rules were set long ago. See my other email.
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On 2015/10/24 1:25, Alexei Starovoitov wrote:
On 10/23/15 9:42 AM, Peter Zijlstra wrote:
On Fri, Oct 23, 2015 at 08:02:00AM -0700, Alexei Starovoitov wrote:
On 10/23/15 7:39 AM, Peter Zijlstra wrote:
On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
+static const struct
On Fri, Oct 23, 2015 at 08:02:00AM -0700, Alexei Starovoitov wrote:
> On 10/23/15 7:39 AM, Peter Zijlstra wrote:
> >On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
> >>>+static const struct bpf_func_proto bpf_perf_event_output_proto = {
> >>>+ .func =
On 10/23/15 9:42 AM, Peter Zijlstra wrote:
On Fri, Oct 23, 2015 at 08:02:00AM -0700, Alexei Starovoitov wrote:
On 10/23/15 7:39 AM, Peter Zijlstra wrote:
On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
+static const struct bpf_func_proto bpf_perf_event_output_proto = {
+
On 10/23/15 7:39 AM, Peter Zijlstra wrote:
On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
>+static const struct bpf_func_proto bpf_perf_event_output_proto = {
>+ .func = bpf_perf_event_output,
>+ .gpl_only = false,
Oh ?
no particular reason. key
On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
> +static const struct bpf_func_proto bpf_perf_event_output_proto = {
> + .func = bpf_perf_event_output,
> + .gpl_only = false,
Oh ?
> + .ret_type = RET_INTEGER,
> + .arg1_type =
On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
> +++ b/kernel/trace/bpf_trace.c
> @@ -215,6 +215,50 @@ const struct bpf_func_proto bpf_perf_event_read_proto = {
> .arg2_type = ARG_ANYTHING,
> };
>
> +static u64 bpf_perf_event_output(u64 r1, u64 r2, u64 index, u64
On 10/22/15 6:59 AM, Peter Zijlstra wrote:
+ if (unlikely(event->oncpu != smp_processor_id()))
>+ return -EOPNOTSUPP;
>+
>+ perf_sample_data_init(_data, 0, 0);
>+ sample_data.raw =
>+ perf_event_output(event, _data, regs);
>+ return 0;
>+}
Note that this function also
On 10/21/15 5:06 AM, Peter Zijlstra wrote:
PERF_COUNT_SW_DUMMY = 9,
>+ PERF_COUNT_SW_BPF_OUTPUT= 10,
>
>PERF_COUNT_SW_MAX, /* non-ABI */
> };
Do you really need the new type? Can't you use DUMMY for this?
It works fine
On Wed, Oct 21, 2015 at 10:26:21AM -0700, Alexei Starovoitov wrote:
> On 10/21/15 5:06 AM, Peter Zijlstra wrote:
> >>PERF_COUNT_SW_DUMMY = 9,
> >>>+ PERF_COUNT_SW_BPF_OUTPUT= 10,
> >>>
> >>> PERF_COUNT_SW_MAX, /* non-ABI */
> >>> };
On 10/21/15 4:05 AM, Wangnan (F) wrote:
I think we can
make perf output raw data hexadamically at first.
that would be my suggestion as well.
print it as hex first and when llvm type info is available you can teach
perf to be smarter.
We're working on support for this feature in iovisor/bcc
hi, Alexei
I've tested the sample in next patch and it works well. I think more work on
the perf side needs to be done for parsing PERF_COUNT_SW_BPF_OUTPUT event type,
are you working on that?
Thank you.
On 2015/10/21 11:02, Alexei Starovoitov wrote:
This helper is used to send raw data from
On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
> This helper is used to send raw data from eBPF program into
> special PERF_TYPE_SOFTWARE/PERF_COUNT_SW_BPF_OUTPUT perf_event.
> User space needs to perf_event_open() it (either for one or all cpus) and
> store FD into
On 2015/10/21 18:01, He Kuang wrote:
hi, Alexei
I've tested the sample in next patch and it works well. I think more
work on
the perf side needs to be done for parsing PERF_COUNT_SW_BPF_OUTPUT
event type,
are you working on that?
Thank you.
We need to add something into parse-event.y/l
This helper is used to send raw data from eBPF program into
special PERF_TYPE_SOFTWARE/PERF_COUNT_SW_BPF_OUTPUT perf_event.
User space needs to perf_event_open() it (either for one or all cpus) and
store FD into perf_event_array (similar to bpf_perf_event_read() helper)
before eBPF program can
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