Available under a OSS compliant license (https://opensource.org/license/UPL), it's a shame that this completely user space implementation based on BPF hasn't got wider attention. Looking at the activity on dtrace-devel it seems like it's actively maintained by a team of dedicated developers.
The Linux "native" alternative bpftrace is fantastic but it's not practical to use it in an embedded environment because it pulls in llvm-libs.
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[ 3.2 ms ] story [ 12.2 ms ] threadThe Linux "native" alternative bpftrace is fantastic but it's not practical to use it in an embedded environment because it pulls in llvm-libs.