On 2015/06/13 4:27, Arnaldo Carvalho de Melo wrote:
> Hi Masami,
>
> I tried somethig with perf probe today, namely to ask for a
> variable that is a struct perf_event_attr to be collected after
> the perf_event_open syscall copies it from userspace, and got this
> message:
>
> [root@zoo ~]
On 6/12/15 12:27 PM, Arnaldo Carvalho de Melo wrote:
Alexei, is this already possible with eBPF?
I want to decode that attr_uptr thing :-)
yes, it's already possible :)
Here is working example from our experimental c+python thingy:
#!/usr/bin/env python
from bpf import BPF
from subprocess imp
On 2015/06/13 4:27, Arnaldo Carvalho de Melo wrote:
> Hi Masami,
>
> I tried somethig with perf probe today, namely to ask for a
> variable that is a struct perf_event_attr to be collected after
> the perf_event_open syscall copies it from userspace, and got this
> message:
>
> [root@zoo ~]
Hi Masami,
I tried somethig with perf probe today, namely to ask for a
variable that is a struct perf_event_attr to be collected after
the perf_event_open syscall copies it from userspace, and got this
message:
[root@zoo ~]# perf probe SYSC_perf_event_open:23 args
Failed to find 'args' in
4 matches
Mail list logo