Build fc27 (Dec 29, 2020 9:51:27 PM)

1. fix compilation issues with latest llvm12 trunk (details / githubweb)
2. tools/offcputime: Fix python3 string output (details / githubweb)
3. add a C++ kfunc/kretfunc example (details / githubweb)
4. Add PT_REGS_PARMx_SYSCALL helpers for all archs (details / githubweb)
5. Reduce code duplication, and add PT_REGS_SYSCALL_CTX (details / githubweb)
6. Drop ubuntu xenial from release process, it is EOL (details / githubweb)
7. Install python dependencies via pip (details / githubweb)
8. Add sk_lookup to kernel-versions.md (details / githubweb)
9. Document XDP support for igb driver in Linux 5.10 (details / githubweb)
10. tools/biolatpcts: Support measuring overall latencies between two events (details / githubweb)
11. tools/biolatpcts: Add accumulative reporting on SIGUSR2 (details / githubweb)
12. Add build-from-source instructions for Arch Linux (details / githubweb)
13. doc: adjust bpf_ktime_get_ns() document description (details / githubweb)
14. Update the link and title of the linked blog post (details / githubweb)
15. 4.18 - Pass map values to map helpers (details / githubweb)
16. Update kernel-versions.md (details / githubweb)
17. libbpf-tools: syscall_helpers: fix a warning (details / githubweb)
18. libbpf-tools: update README add a blog link (details / githubweb)
19. bcc/libbpf-tools: Fix user probe read references of execsnoop (details / githubweb)
20. tools/opensnoop: Use bpf_probe_read_user explicitly (details / githubweb)
21. The README file in this repo has some bad links - [404:NotFound] (details / githubweb)
22. CMake: Refactor clang include/library paths (details / githubweb)

Started by upstream project bcc-pr build number 774
originally caused by:

• GitHub pull request #3202 of commit 78a18ec891a14c10c51b4c3c4923e16eeac5cfab, has merge conflicts.

• detached