On Thu, Jan 07, 2021 at 01:20:33PM +0000, Alexander Lobakin wrote: > Catch any symbols placed in .rel.dyn and check for these sections > to be zero-sized at link time. > Eliminates following ld warning: > > mips-alpine-linux-musl-ld: warning: orphan section `.rel.dyn' > from `init/main.o' being placed in section `.rel.dyn' > > Adopted from x86/kernel/vmlinux.lds.S. > > Suggested-by: Fangrui Song <[email protected]> > Signed-off-by: Alexander Lobakin <[email protected]>
Reviewed-by: Nathan Chancellor <[email protected]> > --- > arch/mips/kernel/vmlinux.lds.S | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S > index 0f4e46ea4458..0f736d60d43e 100644 > --- a/arch/mips/kernel/vmlinux.lds.S > +++ b/arch/mips/kernel/vmlinux.lds.S > @@ -226,4 +226,15 @@ SECTIONS > *(.pdr) > *(.reginfo) > } > + > + /* > + * Sections that should stay zero sized, which is safer to > + * explicitly check instead of blindly discarding. > + */ > + > + .rel.dyn : { > + *(.rel.*) > + *(.rel_*) > + } > + ASSERT(SIZEOF(.rel.dyn) == 0, "Unexpected run-time relocations (.rel) > detected!") > } > -- > 2.30.0 > >
