On Fri, Feb 24, 2023 at 7:58 AM Björn Töpel <bjorn@xxxxxxxxxx> wrote: > > Alexandre Ghiti <alex@xxxxxxxx> writes: > > > +cc linux-kbuild, llvm, Nathan, Nick > > > > On 2/15/23 15:36, Alexandre Ghiti wrote: > >> From: Alexandre Ghiti <alex@xxxxxxxx> > >> > > I tried a lot of things, but I struggle to understand, does anyone have > > any idea? FYI, the same problem happens with LLVM. Off the top of my head, no idea. (Maybe as a follow up to this series, I wonder if pursuing ARCH_HAS_RELR for ARCH=riscv is worthwhile?) > > Don't ask me *why*, but adding --emit-relocs to your linker flags solves > "the NULL .rela.dyn" both for GCC and LLVM. > > The downside is that you end up with a bunch of .rela cruft in your > vmlinux. There was a patch just this week to use $(OBJCOPY) to strip these from vmlinux (for x86). Looks like x86 uses --emit-relocs for KASLR: https://lore.kernel.org/lkml/20230320121006.4863-1-petr.pavlu@xxxxxxxx/ -- Thanks, ~Nick Desaulniers
