[RFC PATCH 11/17] efi: libstub: Ignore relocations for .discard sections
From: Julien Thierry <hidden>
Date: 2021-01-20 18:52:22
Also in:
linux-efi, linux-hardening, lkml
Subsystem:
extensible firmware interface (efi), the rest · Maintainers:
Ard Biesheuvel, Linus Torvalds
EFI stub cannot have absolute relocations in sections affecting the execution flow. However, for sections that get discarded at link time, it doesn't really matter if they have absolute relocations. Ignore the relocation associated with such sections. Signed-off-by: Julien Thierry <redacted> --- drivers/firmware/efi/libstub/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index 8a94388e38b3..70e9c7f45d30 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile@@ -133,7 +133,7 @@ $(obj)/%.stub.o: $(obj)/%.o FORCE # quiet_cmd_stubcopy = STUBCPY $@ cmd_stubcopy = \ - $(STRIP) --strip-debug -o $@ $<; \ + $(STRIP) --strip-debug --remove-relocations=".discard.*" -o $@ $<; \ if $(OBJDUMP) -r $@ | grep $(STUBCOPY_RELOC-y); then \ echo "$@: absolute symbol references not allowed in the EFI stub" >&2; \ /bin/false; \
--
2.25.4
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel