| From 9dead5bbb825d7c25c0400e61de83075046322d0 Mon Sep 17 00:00:00 2001 |
| From: Matthew Garrett <mjg@redhat.com> |
| Date: Thu, 26 Jul 2012 18:00:00 -0400 |
| Subject: efi: Build EFI stub with EFI-appropriate options |
| |
| From: Matthew Garrett <mjg@redhat.com> |
| |
| commit 9dead5bbb825d7c25c0400e61de83075046322d0 upstream. |
| |
| We can't assume the presence of the red zone while we're still in a boot |
| services environment, so we should build with -fno-red-zone to avoid |
| problems. Change the size of wchar at the same time to make string handling |
| simpler. |
| |
| Signed-off-by: Matthew Garrett <mjg@redhat.com> |
| Signed-off-by: Matt Fleming <matt.fleming@intel.com> |
| Acked-by: Josh Boyer <jwboyer@redhat.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| arch/x86/boot/compressed/Makefile | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| --- a/arch/x86/boot/compressed/Makefile |
| +++ b/arch/x86/boot/compressed/Makefile |
| @@ -28,6 +28,9 @@ VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj) |
| $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \ |
| $(obj)/piggy.o |
| |
| +$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone |
| +$(obj)/efi_stub_$(BITS).o: KBUILD_CLFAGS += -fshort-wchar -mno-red-zone |
| + |
| ifeq ($(CONFIG_EFI_STUB), y) |
| VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o |
| endif |
