Sorry for not reporting this sooner; been out sick all week with COVID.
On Fri, Aug 19, 2022 at 8:46 AM Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
From: Nick Desaulniers ndesaulniers@google.com
commit ffcf9c5700e49c0aee42dcba9a12ba21338e8136 upstream.
<snip>
--- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -68,6 +68,10 @@ LDFLAGS_vmlinux := -pie $(call ld-option ifdef CONFIG_LD_ORPHAN_WARN LDFLAGS_vmlinux += --orphan-handling=warn endif +LDFLAGS_vmlinux += -z noexecstack +ifeq ($(CONFIG_LD_IS_BFD),y)
5.10.y is missing CONFIG_LD_IS_BFD. Specifically
commit 02aff8592204 ("kbuild: check the minimum linker version in Kconfig") which first landed in v5.12-rc1. I'd recommend simply dropping the `ifeq` guards; the ld-option guard will still work. Otherwise GNU BFD 2.39 users will observe linker warnings related to rwx-segments.
Greg, do you mind dropping this patch and I'll supply a v2, or is it too late and I should send a patch on top?
+LDFLAGS_vmlinux += $(call ld-option,--no-warn-rwx-segments) +endif LDFLAGS_vmlinux += -T
hostprogs := mkpiggy