From: Gregory Bell on gitlab.com https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3738#note_2400785759 For RPM_VMLINUX_H vmlinux.h is being output here `tools/bpf/bpftool/bootstrap/bpftool btf dump file vmlinux format c > $RPM_BUILD_ROOT/$DevelDir/vmlinux.h` previously no build would see it when checking this condition so RPM_VMLINUX_H was always an empty variable ``` if [ -f $DevelDir/vmlinux.h ]; then RPM_VMLINUX_H=$DevelDir/vmlinux.h ``` Context for where vmlinux.h is generated: ``` %if %{with_debuginfo} # Generate vmlinux.h and put it to kernel-devel path # zfcpdump build does not have btf anymore if [ "$Variant" != "zfcpdump" ]; then %{log_msg "Build the bootstrap bpftool to generate vmlinux.h"} # Build the bootstrap bpftool to generate vmlinux.h export BPFBOOTSTRAP_CFLAGS=$(echo "%{__global_compiler_flags}" | sed -r "s/\-specs=[^\ ]+\/redhat-annobin-cc1//") export BPFBOOTSTRAP_LDFLAGS=$(echo "%{__global_ldflags}" | sed -r "s/\-specs=[^\ ]+\/redhat-annobin-cc1//") CFLAGS="" LDFLAGS="" make EXTRA_CFLAGS="${BPFBOOTSTRAP_CFLAGS}" EXTRA_CXXFLAGS="${BPFBOOTSTRAP_CFLAGS}" EXTRA_LDFLAGS="${BPFBOOTSTRAP_LDFLAGS}" %{?make_opts} %{?clang_make_opts} V=1 -C tools/bpf/bpftool bootstrap tools/bpf/bpftool/bootstrap/bpftool btf dump file vmlinux format c > $RPM_BUILD_ROOT/$DevelDir/vmlinux.h fi %endif ``` For bpftool in RHEL-10.0 there is an [issue](https://issues.redhat.com/browse/RHEL-70466?filter=-1) when building bpftool that is resolved if we pass the already built bpftool (built in the section above). I liked this solution because it fixed and optimized it. -- _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
