On Fri, 29 Jan 2021 17:46:51 -0700, Nathan Chancellor wrote:
> clang produces .eh_frame sections when CONFIG_GCOV_KERNEL is enabled,
> even when -fno-asynchronous-unwind-tables is in KBUILD_CFLAGS:
>
> $ make CC=clang vmlinux
> ...
> ld: warning: orphan section `.eh_frame' from `init/main.o' being placed in
> section `.eh_frame'
> ld: warning: orphan section `.eh_frame' from `init/version.o' being placed in
> section `.eh_frame'
> ld: warning: orphan section `.eh_frame' from `init/do_mounts.o' being placed
> in section `.eh_frame'
> ld: warning: orphan section `.eh_frame' from `init/do_mounts_initrd.o' being
> placed in section `.eh_frame'
> ld: warning: orphan section `.eh_frame' from `init/initramfs.o' being placed
> in section `.eh_frame'
> ld: warning: orphan section `.eh_frame' from `init/calibrate.o' being placed
> in section `.eh_frame'
> ld: warning: orphan section `.eh_frame' from `init/init_task.o' being placed
> in section `.eh_frame'
> ...
>
> [...]
Applied to kspp/linker/orphans, thanks!
[1/1] vmlinux.lds.h: Define SANTIZER_DISCARDS with CONFIG_GCOV_KERNEL=y
https://git.kernel.org/kees/c/f5b6a74d9c08
--
Kees Cook
