From ecad3312111798d84dac1ce6a853e0ac9de8d505 Mon Sep 17 00:00:00 2001 From: Martin Rodriguez Reboredo Date: Wed, 19 Oct 2022 10:56:04 +0200 Subject: [PATCH] kbuild: Add skip_encoding_btf_enum64 option to pahole New pahole (version 1.24) generates by default new BTF_KIND_ENUM64 BTF tag, which is not supported by stable kernel. As a result the kernel with CONFIG_DEBUG_INFO_BTF option will fail to compile with following error: BTFIDS vmlinux FAILED: load BTF from vmlinux: Invalid argument New pahole provides --skip_encoding_btf_enum64 option to skip BTF_KIND_ENUM64 generation and produce BTF supported by stable kernel. Adding this option to scripts/pahole-flags.sh. This change does not have equivalent commit in linus tree, because linus tree has support for BTF_KIND_ENUM64 tag, so it does not need to be disabled. Signed-off-by: Martin Rodriguez Reboredo Signed-off-by: Jiri Olsa Signed-off-by: Greg Kroah-Hartman --- scripts/pahole-flags.sh | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/scripts/pahole-flags.sh b/scripts/pahole-flags.sh index 27445cb72974..8c82173e42e5 100755 --- a/scripts/pahole-flags.sh +++ b/scripts/pahole-flags.sh @@ -14,4 +14,8 @@ if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_vars" fi +if [ "${pahole_ver}" -ge "124" ]; then + extra_paholeopt="${extra_paholeopt} --skip_encoding_btf_enum64" +fi + echo ${extra_paholeopt}