See:
https://gitlab.alpinelinux.org/alpine/aports/-/issues/14560
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/powerpc/boot/wrapper?id=4c078c86b4a466db221a08d423c2eae9332c2641

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 5bdd4dd20bbb..4ab2f8316dac 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -251,6 +251,7 @@ pseries)
     if [ "$format" != "elf32ppc" ]; then
 	link_address=
 	pie=-pie
+	notext='-z notext'
     fi
     make_space=n
     ;;