Re: [PATCHv4 bpf-next 3/6] bpf: Add link_info support for uprobe multi link

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On 11/25/23 2:31 PM, Jiri Olsa wrote:
Adding support to get uprobe_link details through bpf_link_info
interface.

Adding new struct uprobe_multi to struct bpf_link_info to carry
the uprobe_multi link details.

The uprobe_multi.count is passed from user space to denote size
of array fields (offsets/ref_ctr_offsets/cookies). The actual
array size is stored back to uprobe_multi.count (allowing user
to find out the actual array size) and array fields are populated
up to the user passed size.

All the non-array fields (path/count/flags/pid) are always set.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>

Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>





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