[$] Updates to pahole

Arnaldo Carvalho de Melo spoke at the 2024Linux Storage,Filesystem, Memory Management, and BPF Summitabout his work onPoke-a-hole (pahole),a program that has expanded greatly over the years, but which was relevant to theBPF track because it produces BPF Type Format (BTF) information from DWARFdebugging information. He covered some small changes to the program, and thenwent into detail about the new support for data-type profiling. Hisslides includeseveral examples.