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tools: Initial version of IPC4 tx message logger using eBPF #1205

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tools: Initial version of IPC4 tx message logger using eBPF #1205

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Commits on Jul 16, 2024

  1. tools: Initial version of IPC4 tx message logger using eBPF 

    The ipc4-msg-trace.bt script will tap into the entry of
sof_ipc4_log_header() which is always called but only prints if dynamic
debugging is enabled. It's parameter list is not expected to be changed.

The bpftrace must be installed to be able to use the script
sudo pacman -S bpftrace
sudo emerge -a bpftrace
sudo apt install bpftrace
sudo dnf install bpftrace

To use the script:
sudo ./tools/sof-ipc4-msg-trace.bt
or
sudo bpftrace tools/sof-ipc4-msg-trace.bt

It will start logging the sent messages (including payloads) and received
notification with exception of 0x1b060000 - trace update.

To stop the logging, just terminate the script with CTRL+C

Signed-off-by: Peter Ujfalusi <[email protected]>
    @ujfalusi
    ujfalusi committed Jul 16, 2024
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