On Wed, Jan 06, 2021 at 08:08:19PM +0000, Alexander Lobakin wrote: > Discard GNU attributes at link time as kernel doesn't use it at all. > Solves a dozen of the following ld warnings (one per every file): > > mips-alpine-linux-musl-ld: warning: orphan section `.gnu.attributes' > from `arch/mips/kernel/head.o' being placed in section > `.gnu.attributes' > mips-alpine-linux-musl-ld: warning: orphan section `.gnu.attributes' > from `init/main.o' being placed in section `.gnu.attributes' > > Misc: sort DISCARDS section entries alphabetically. Hmm, I wonder what is causing the appearance of .eh_frame? With help I tracked down all the causes of this on x86, arm, and arm64, so that's why it's not in the asm-generic DISCARDS section. I suspect this could be cleaned up for mips too? Similarly for .gnu.attributes. What is generating that? (Or, more specifically, why is it both being generated AND discarded?) -Kees > > Signed-off-by: Alexander Lobakin <alobakin@xxxxx> > --- > arch/mips/kernel/vmlinux.lds.S | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S > index 83e27a181206..5d6563970ab2 100644 > --- a/arch/mips/kernel/vmlinux.lds.S > +++ b/arch/mips/kernel/vmlinux.lds.S > @@ -221,9 +221,10 @@ SECTIONS > /* ABI crap starts here */ > *(.MIPS.abiflags) > *(.MIPS.options) > + *(.eh_frame) > + *(.gnu.attributes) > *(.options) > *(.pdr) > *(.reginfo) > - *(.eh_frame) > } > } > -- > 2.30.0 > > -- Kees Cook
