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tetra: Add debug progs command #2967

Merged
merged 3 commits into from
Oct 11, 2024
Merged

tetra: Add debug progs command #2967

merged 3 commits into from
Oct 11, 2024

Commits on Oct 11, 2024

  1. tetra: Add debug progs command 

    Adding tetra debug progs command that enables bpf program stats
and collects them for running programs.

The deault output looks like:

  # ./tetra debug progs --once
  2024-10-05 20:59:26.75755952 +0000 UTC m=+1.037895215

  Ovh(%)  Id      Cnt     Time    Name                            Pin
    0.00  1934    0       0       event_execve                    /sys/fs/bpf/tetragon/__base__/event_execve/prog
    0.00  1929    0       0       event_exit_acct_process         /sys/fs/bpf/tetragon/__base__/event_exit/prog
    0.00  1931    0       0       event_wake_up_new_task          /sys/fs/bpf/tetragon/__base__/kprobe_pid_clear/prog
    0.00  1937    0       0       tg_kp_bprm_committing_creds     /sys/fs/bpf/tetragon/__base__/tg_kp_bprm_committing_creds/prog

It provides several options to control timeout and repetition,
all should be described in help.

Signed-off-by: Jiri Olsa <[email protected]>
    @olsajiri
    olsajiri committed Oct 11, 2024
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  2. tetragon: Change uprobe attach strings 

    We need proper attach string or uprobe programs because they will
be part of overhead metrics.

Storing attach for standard uprobe, like:
  Attach="/home/jolsa/tetragon/contrib/tester-progs/nop main"

and uprobe multi, like:
  Attach="uprobe_multi (1 functions)"

Signed-off-by: Jiri Olsa <[email protected]>
    @olsajiri
    olsajiri committed Oct 11, 2024
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  3. tetragon: Add missing policy setup for generic sensors 

    We need that for proper overhead metrics.

Signed-off-by: Jiri Olsa <[email protected]>
    @olsajiri
    olsajiri committed Oct 11, 2024
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