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x86/boot: Handle relative CONFIG_EFI_SBAT_FILE file paths

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CONFIG_EFI_SBAT_FILE can be a relative path. When compiling using a different
output directory (O=) the build currently fails because it can't find the
filename set in CONFIG_EFI_SBAT_FILE:

  arch/x86/boot/compressed/sbat.S: Assembler messages:
  arch/x86/boot/compressed/sbat.S:6: Error: file not found: kernel.sbat

Add $(srctree) as include dir for sbat.o.

  [ bp: Massage commit message. ]

Fixes: 61b57d3539 ("x86/efi: Implement support for embedding SBAT data for x86")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: <stable@kernel.org>
Link: https://patch.msgid.link/f4eda155b0cef91d4d316b4e92f5771cb0aa7187.1772047658.git.jstancek@redhat.com
This commit is contained in:
Jan Stancek 2026-02-25 20:30:23 +01:00 committed by Borislav Petkov (AMD)
parent 9073428bb2
commit 3d1973a0c7
1 changed files with 1 additions and 0 deletions
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arch/x86/boot/compressed/Makefile
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@ -113,6 +113,7 @@ vmlinux-objs-$(CONFIG_EFI_SBAT) += $(obj)/sbat.o
ifdef CONFIG_EFI_SBAT
$(obj)/sbat.o: $(CONFIG_EFI_SBAT_FILE)
AFLAGS_sbat.o += -I $(srctree)
endif
$(obj)/vmlinux: $(vmlinux-objs-y) $(vmlinux-libs-y) FORCE