netdev - [PATCH bpf-next 0/3] samples: bpf: Refactor tracing programs with libbpf

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Date:   Sun, 23 Aug 2020 17:53:31 +0900
From:   "Daniel T. Lee" <danieltimlee@...il.com>
To:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>
Cc:     Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Martin KaFai Lau <kafai@...com>, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: [PATCH bpf-next 0/3] samples: bpf: Refactor tracing programs with libbpf

For the problem of increasing fragmentation of the bpf loader programs,
instead of using bpf_loader.o, which is used in samples/bpf, this
patch refactors the existing kprobe, tracepoint tracing programs with 
libbbpf bpf loader.

    - For kprobe events pointing to system calls, the SYSCALL() macro in
    trace_common.h was used.
    - Adding a kprobe/tracepoint event and attaching a bpf program to it
    was done through bpf_program_attach().
    - Instead of using the existing BPF MAP definition, MAP definition
    has been refactored with the new BTF-defined MAP format.

Daniel T. Lee (3):
  samples: bpf: cleanup bpf_load.o from Makefile
  samples: bpf: Refactor kprobe tracing programs with libbpf
  samples: bpf: Refactor tracepoint tracing programs with libbpf

 samples/bpf/Makefile                          | 18 ++---
 samples/bpf/cpustat_kern.c                    | 36 +++++-----
 samples/bpf/cpustat_user.c                    | 47 +++++++++++--
 samples/bpf/lathist_kern.c                    | 24 +++----
 samples/bpf/lathist_user.c                    | 42 ++++++++++--
 samples/bpf/offwaketime_kern.c                | 52 +++++++-------
 samples/bpf/offwaketime_user.c                | 66 ++++++++++++++----
 samples/bpf/spintest_kern.c                   | 36 +++++-----
 samples/bpf/spintest_user.c                   | 68 +++++++++++++++----
 samples/bpf/syscall_tp_kern.c                 | 24 +++----
 samples/bpf/syscall_tp_user.c                 | 54 +++++++++++----
 .../bpf/test_current_task_under_cgroup_kern.c | 27 ++++----
 .../bpf/test_current_task_under_cgroup_user.c | 52 +++++++++++---
 samples/bpf/test_probe_write_user_kern.c      | 12 ++--
 samples/bpf/test_probe_write_user_user.c      | 49 ++++++++++---
 samples/bpf/trace_output_kern.c               | 15 ++--
 samples/bpf/trace_output_user.c               | 55 ++++++++++-----
 17 files changed, 465 insertions(+), 212 deletions(-)

-- 
2.25.1