Hi, Ard, On Sat, Aug 27, 2022 at 3:14 PM Ard Biesheuvel <ardb@xxxxxxxxxx> wrote: > > On Sat, 27 Aug 2022 at 06:41, Xi Ruoyao <xry111@xxxxxxxxxxx> wrote: > > > > Tested V3 with the magic number check manually removed in my GRUB build. > > The system boots successfully. I've not tested Arnd's zBoot patch yet. > > I am Ard not Arnd :-) > > Please use this branch when testing the EFI decompressor: > https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/log/?h=efi-decompressor-v4 The root cause of LoongArch zboot boot failure has been found, it is a binutils bug, latest toolchain with the below patch can solve the problem. diff --git a/bfd/elfnn-loongarch.c b/bfd/elfnn-loongarch.c index 5b44901b9e0..fafdc7c7458 100644 --- a/bfd/elfnn-loongarch.c +++ b/bfd/elfnn-loongarch.c @@ -2341,9 +2341,10 @@ loongarch_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, case R_LARCH_SOP_PUSH_PLT_PCREL: unresolved_reloc = false; - if (resolved_to_const) + if (!is_undefweak && resolved_to_const) { relocation += rel->r_addend; + relocation -= pc; break; } else if (is_undefweak) Huacai
