On 10/11/19 9:38 PM, Andrii Nakryiko wrote:
> On Fri, Oct 11, 2019 at 6:29 PM Alexei Starovoitov wrote:
>>
>> On 10/11/19 5:40 PM, Alexei Starovoitov wrote:
But even if kernel supports attach_btf_id, I think users still need to
opt in into specifying attach_btf_id by libbpf. Think about
On Fri, Oct 11, 2019 at 5:40 PM Alexei Starovoitov wrote:
>
> On 10/11/19 11:07 AM, Andrii Nakryiko wrote:
> > On Wed, Oct 9, 2019 at 9:17 PM Alexei Starovoitov wrote:
> >>
> >> For raw tracepoint program types libbpf will try to find
> >> btf_id of raw tracepoint in vmlinux's BTF.
> >> It's a re
On Fri, Oct 11, 2019 at 6:29 PM Alexei Starovoitov wrote:
>
> On 10/11/19 5:40 PM, Alexei Starovoitov wrote:
> >> But even if kernel supports attach_btf_id, I think users still need to
> >> opt in into specifying attach_btf_id by libbpf. Think about existing
> >> raw_tp programs that are using bpf
On 10/11/19 5:40 PM, Alexei Starovoitov wrote:
>> But even if kernel supports attach_btf_id, I think users still need to
>> opt in into specifying attach_btf_id by libbpf. Think about existing
>> raw_tp programs that are using bpf_probe_read() because they were not
>> created with this kernel featu
On 10/11/19 11:07 AM, Andrii Nakryiko wrote:
> On Wed, Oct 9, 2019 at 9:17 PM Alexei Starovoitov wrote:
>>
>> For raw tracepoint program types libbpf will try to find
>> btf_id of raw tracepoint in vmlinux's BTF.
>> It's a responsiblity of bpf program author to annotate the program
>> with SEC("ra
On Wed, Oct 9, 2019 at 9:17 PM Alexei Starovoitov wrote:
>
> For raw tracepoint program types libbpf will try to find
> btf_id of raw tracepoint in vmlinux's BTF.
> It's a responsiblity of bpf program author to annotate the program
> with SEC("raw_tracepoint/name") where "name" is a valid raw trac
On Wed, Oct 9, 2019 at 9:17 PM Alexei Starovoitov wrote:
>
> For raw tracepoint program types libbpf will try to find
> btf_id of raw tracepoint in vmlinux's BTF.
> It's a responsiblity of bpf program author to annotate the program
> with SEC("raw_tracepoint/name") where "name" is a valid raw trac
For raw tracepoint program types libbpf will try to find
btf_id of raw tracepoint in vmlinux's BTF.
It's a responsiblity of bpf program author to annotate the program
with SEC("raw_tracepoint/name") where "name" is a valid raw tracepoint.
If "name" is indeed a valid raw tracepoint then in-kernel BT
