Before the patch an undefined constant EFI_SUBSYSTEM was used in the crt0 code. The current version of binutils does not swallow the error.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888403
The necessary constant IMAGE_SUBSYSTEM_EFI_APPLICATION is already defined in pe.h. So let's factor out asm-generic/pe.h for the image subsystem constants and use it in our assembler code.
IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER does not exist in the specification let's use IMAGE_SUBSYSTEM_EFI_ROM instead.
The include pe.h is only used in code maintained by Alex so let him be the maintainer here too.
Reported-by: Andre Przywara andre.przywara@arm.com Cc: Alexander Graf agraf@suse.de Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- MAINTAINERS | 2 ++ arch/arm/lib/crt0_aarch64_efi.S | 4 +++- arch/arm/lib/crt0_arm_efi.S | 4 +++- include/asm-generic/pe.h | 21 +++++++++++++++++++++ include/pe.h | 8 ++------ lib/efi_loader/efi_image_loader.c | 2 +- 6 files changed, 32 insertions(+), 9 deletions(-) create mode 100644 include/asm-generic/pe.h
diff --git a/MAINTAINERS b/MAINTAINERS index 0aecc18a6c..879b41c97e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -291,6 +291,8 @@ S: Maintained T: git git://github.com/agraf/u-boot.git F: doc/README.iscsi F: include/efi* +F: include/pe.h +F: include/asm-generic/pe.h F: lib/efi*/ F: test/py/tests/test_efi* F: cmd/bootefi.c diff --git a/arch/arm/lib/crt0_aarch64_efi.S b/arch/arm/lib/crt0_aarch64_efi.S index 52056469be..9b0e894f8a 100644 --- a/arch/arm/lib/crt0_aarch64_efi.S +++ b/arch/arm/lib/crt0_aarch64_efi.S @@ -8,6 +8,8 @@ * This file is taken and modified from the gnu-efi project. */
+#include <asm-generic/pe.h> + .section .text.head
/* @@ -62,7 +64,7 @@ extra_header_fields: */ .long _start - ImageBase /* SizeOfHeaders */ .long 0 /* CheckSum */ - .short EFI_SUBSYSTEM /* Subsystem */ + .short IMAGE_SUBSYSTEM_EFI_APPLICATION /* Subsystem */ .short 0 /* DllCharacteristics */ .quad 0 /* SizeOfStackReserve */ .quad 0 /* SizeOfStackCommit */ diff --git a/arch/arm/lib/crt0_arm_efi.S b/arch/arm/lib/crt0_arm_efi.S index 967c885982..af55bba4ba 100644 --- a/arch/arm/lib/crt0_arm_efi.S +++ b/arch/arm/lib/crt0_arm_efi.S @@ -8,6 +8,8 @@ * This file is taken and modified from the gnu-efi project. */
+#include <asm-generic/pe.h> + .section .text.head
/* @@ -64,7 +66,7 @@ extra_header_fields: */ .long _start - image_base /* SizeOfHeaders */ .long 0 /* CheckSum */ - .short EFI_SUBSYSTEM /* Subsystem */ + .short IMAGE_SUBSYSTEM_EFI_APPLICATION /* Subsystem */ .short 0 /* DllCharacteristics */ .long 0 /* SizeOfStackReserve */ .long 0 /* SizeOfStackCommit */ diff --git a/include/asm-generic/pe.h b/include/asm-generic/pe.h new file mode 100644 index 0000000000..d1683f238a --- /dev/null +++ b/include/asm-generic/pe.h @@ -0,0 +1,21 @@ +/* + * Portable Executable and Common Object Constants + * + * Copyright (c) 2018 Heinrich Schuchardt + * + * based on the "Microsoft Portable Executable and Common Object File Format + * Specification", revision 11, 2017-01-23 + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_PE_H +#define _ASM_PE_H + +/* Subsystem type */ +#define IMAGE_SUBSYSTEM_EFI_APPLICATION 10 +#define IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER 11 +#define IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER 12 +#define IMAGE_SUBSYSTEM_EFI_ROM 13 + +#endif /* _ASM_PE_H */ diff --git a/include/pe.h b/include/pe.h index 4ef3e92efa..c3a19cef76 100644 --- a/include/pe.h +++ b/include/pe.h @@ -11,6 +11,8 @@ #ifndef _PE_H #define _PE_H
+#include <asm-generic/pe.h> + typedef struct _IMAGE_DOS_HEADER { uint16_t e_magic; /* 00: MZ Header signature */ uint16_t e_cblp; /* 02: Bytes on last page of file */ @@ -62,12 +64,6 @@ typedef struct _IMAGE_DATA_DIRECTORY {
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
-/* PE32+ Subsystem type for EFI images */ -#define IMAGE_SUBSYSTEM_EFI_APPLICATION 10 -#define IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER 11 -#define IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER 12 -#define IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER 13 - typedef struct _IMAGE_OPTIONAL_HEADER64 { uint16_t Magic; /* 0x20b */ uint8_t MajorLinkerVersion; diff --git a/lib/efi_loader/efi_image_loader.c b/lib/efi_loader/efi_image_loader.c index 9d2214b481..cac64ba9fe 100644 --- a/lib/efi_loader/efi_image_loader.c +++ b/lib/efi_loader/efi_image_loader.c @@ -94,7 +94,7 @@ static void efi_set_code_and_data_type( loaded_image_info->image_data_type = EFI_BOOT_SERVICES_DATA; break; case IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER: - case IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER: + case IMAGE_SUBSYSTEM_EFI_ROM: loaded_image_info->image_code_type = EFI_RUNTIME_SERVICES_CODE; loaded_image_info->image_data_type = EFI_RUNTIME_SERVICES_DATA; break;