Merge tag 'kbuild-fixes-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linuxHEADmaster

Pull Kbuild fixes from Nathan Chancellor:

 - Fix regression with MO= when building out of tree kernel modules due
   to incorrectly overwriting build tree's Makefile

 - Avoid stripping .BTF sections from modules when building debug .rpm
   packages

* tag 'kbuild-fixes-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
  kbuild: rpm-pkg: Preserve BTF sections in kernel modules during debuginfo stripping
  kbuild: Stop modifying $(objtree)/Makefile when building oot-kmods oos

1 files changed, 11 insertions, 0 deletions

diff --git a/scripts/package/kernel.spec b/scripts/package/kernel.spec
index c732415662ef..46e80970f723 100644
--- a/scripts/package/kernel.spec
+++ b/scripts/package/kernel.spec
@@ -67,7 +67,18 @@ This package provides debug information for the kernel image and modules from th
 %undefine _unique_debug_srcs
 %undefine _debugsource_packages
 %undefine _debuginfo_subpackages
+
+# Preserve .BTF and .BTF.base sections in kernel modules during debuginfo
+# stripping. find-debuginfo.sh uses eu-strip which removes non-allocated ELF
+# sections like .BTF by default. .BTF.base is required for BTF distillation
+# support; without it, module BTF validation fails.
+%global with_keep_section %(%{__find_debuginfo} --help 2>&1 | grep -c keep-section)
+%if %{with_keep_section}
+%global _find_debuginfo_opts -r --keep-section .BTF --keep-section .BTF.base
+%else
 %global _find_debuginfo_opts -r
+%endif
+
 %global _missing_build_ids_terminate_build 1
 %global _no_recompute_build_ids 1
 %{debug_package}