(replying manually to https://lore.kernel.org/dwarves/20210328201400.1426437-1-yhs@xxxxxx/) I didn't validate or try to use the produced data, but with this and the kernel patch https://lore.kernel.org/bpf/20210328064121.2062927-1-yhs@xxxxxx/ I was able to build a x86_64 defconfig + CONFIG_LTO_CLANG_THIN + CONFIG_DEBUG_INFO_BTF without further errors. Thank you for the series! FWIW: Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>