Hi, We need to reduce kernel size for aarch64, because it does not fit into U-Boot loader on Raspberry Pi (due to it having fdt_addr_r=0x02600000) and one of big ELF sections in vmlinuz is .BTF taking around 5MB. Compression does not help because on aarch64 kernels are uncompressed[1]. Is it theoretically possible to make sysfs_btf a module? Yes this will reduce tracing at boot times, but at least it will give option for occasional tracing after boot. Thanks, [1] https://www.kernel.org/doc/Documentation/arm64/booting.txt #3.
