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Add libbpf-based tools #2755

Merged
merged 3 commits into from Feb 13, 2020
Merged

Add libbpf-based tools #2755

merged 3 commits into from Feb 13, 2020

Commits on Feb 12, 2020

  1. libbpf tools: check in bpftool for use by libbpf-based tool build 

    Check in bpftool binary to be used for BPF skeleton generation for
libbpf-based tools.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
    @anakryiko
    anakryiko committed Feb 12, 2020
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  2. tools: add vmlinux.h header with all kernel types 

    Check in vmlinux.h generated from Linux 5.5 version with default config. This
is used from libbpf-based tools.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
    @anakryiko
    anakryiko committed Feb 12, 2020
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Commits on Feb 13, 2020

  1. tools: add libbpf-based tools to BCC w/ runqslower as first converted… 

    … tool

Add runqslower as a first tool converted from BCC to libbpf, utilizing BPF
CO-RE (Compile Once - Run Everywhere) approach and BPF skeleton for
interfacing with BPF programs. Current set up is Makefile based and is set up
in such a way as to enable easy addition for more tools, based on a simple and
convenient naming pattern. General build infrastructure takes case of BPF
skeleton generation, tracking dependencies, clean up, etc.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
    @anakryiko
    anakryiko committed Feb 13, 2020
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