Generate BTF typeinfo

modulename: sysfs_btf.ko

configname: CONFIG_DEBUG_INFO_BTF

Linux Kernel Configuration
└─>Kernel hacking
└─>Compile-time checks and compiler options
└─>Generate BTF typeinfo
In linux kernel since version 4.14.326 (release Date: 2023-09-23)  
Generate deduplicated BTF type information from DWARF debug info.
Turning this on expects presence of pahole tool, which will convert
DWARF type info into equivalent deduplicated BTF type info.

source code:
kernel/bpf/sysfs_btf.c