Description:
bpftrace is not compatible with llvm15. Running bpftrace built with llvm15 gets a segfault.
This issue was fixed upstream at https://github.com/iovisor/bpftrace/pull/2385. But it was not included in the 0.16.0 release.
I tried to modify the PKGBUILD to use llvm14 and clang14 but failed because of dependency conflicts.
So the only solution is to use the patch in pr in advance.
There are 3 commits included in pr, but we only need to apply the commit 89188de.
https://github.com/iovisor/bpftrace/commit/89188defce9f323fab39a2aec438be93ad6c0376.patch
I've done this and tested it.
My modified PKGBUILD has been uploaded as an attachment.

By the way:
I found the cmake variable USE_SYSTEM_BPF_BCC at https://github.com/iovisor/bpftrace/blob/master/INSTALL.md#Compilation , but I noticed that the variable is not used in PKGBUILD, why?

Additional info:
* package version(s) community/bpftrace 0.16.0-2
* config and/or log files etc.
* link to upstream bug report, if any https://github.com/iovisor/bpftrace/issues/2368

Steps to reproduce:
exec:
bpftrace -e 'kprobe:do_nanosleep { printf("sleep by %s\n", comm); }'