diff options
| -rw-r--r-- | src/include/efi/efi_datatype.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/include/efi/efi_datatype.h b/src/include/efi/efi_datatype.h index 0333a84a4e..d4152af754 100644 --- a/src/include/efi/efi_datatype.h +++ b/src/include/efi/efi_datatype.h @@ -3,6 +3,22 @@ /* Create EFI equivalent datatype in coreboot based on UEFI specification */ #ifndef __EFI_DATATYPE_H__ #define __EFI_DATATYPE_H__ + +/* + * EDK2 EFIAPI macro definition relies on compiler flags such as __GNUC__ which + * is not working well when included by coreboot. While it has no side-effect on + * i386 because the C calling convention used by coreboot and FSP are the same, + * it breaks on x86_64 because FSP/UEFI uses the Microsoft x64 calling + * convention while coreboot uses the System V AMD64 ABI. + * + * Fortunately, EDK2 header allows to override EFIAPI. + */ +#if CONFIG(PLATFORM_USES_FSP2_X86_32) +#define EFIAPI __attribute__((regparm(0))) +#else +#define EFIAPI __attribute__((__ms_abi__)) +#endif + #include <Base.h> #include <Uefi/UefiBaseType.h> |