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enable BPF_PROG_TEST_RUN for raw_tp #109

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enable BPF_PROG_TEST_RUN for raw_tp #109

wants to merge 4 commits into from

Commits on Sep 24, 2020

  1. adding ci files

    @kernel-patches-bot
    kernel-patches-bot committed Sep 24, 2020
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  2. bpf: enable BPF_PROG_TEST_RUN for raw_tracepoint 

    Add .test_run for raw_tracepoint. Also, introduce a new feature that runs
the target program on a specific CPU. This is achieved by a new flag in
bpf_attr.test, BPF_F_TEST_RUN_ON_CPU. When this flag is set, the program
is triggered on cpu with id bpf_attr.test.cpu. This feature is needed for
BPF programs that handle perf_event and other percpu resources, as the
program can access these resource locally.

Acked-by: John Fastabend <[email protected]>
Signed-off-by: Song Liu <[email protected]>
    @liu-song-6 @kernel-patches-bot
    liu-song-6 authored and kernel-patches-bot committed Sep 24, 2020
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  3. libbpf: support test run of raw tracepoint programs 

    Add bpf_prog_test_run_opts() with support of new fields in bpf_attr.test,
namely, flags and cpu. Also extend _opts operations to support outputs via
opts.

Signed-off-by: Song Liu <[email protected]>
    @liu-song-6 @kernel-patches-bot
    liu-song-6 authored and kernel-patches-bot committed Sep 24, 2020
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  4. selftests/bpf: add raw_tp_test_run 

    This test runs test_run for raw_tracepoint program. The test covers ctx
input, retval output, and running on correct cpu.

Signed-off-by: Song Liu <[email protected]>
    @liu-song-6 @kernel-patches-bot
    liu-song-6 authored and kernel-patches-bot committed Sep 24, 2020
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