[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen stable-4.13] x86/efi: enable MS ABI attribute on clang
commit 9724e60e033cbf586e50a425d7e47eaa613480f7 Author: Roger Pau Monné <roger.pau@xxxxxxxxxx> AuthorDate: Fri Mar 5 15:44:18 2021 +0100 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Fri Mar 5 15:44:18 2021 +0100 x86/efi: enable MS ABI attribute on clang Or else the EFI service calls will use the wrong calling convention. The __ms_abi__ attribute is available on all supported versions of clang. Add a specific Clang check because the GCC version reported by Clang is below the required 4.4 to use the __ms_abi__ attribute. Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Reviewed-by: Ian Jackson <iwj@xxxxxxxxxxxxxx> master commit: 92f5ffa58d188c9f9a9f1bcdccb6d6348d9df612 master date: 2021-02-04 14:02:32 +0100 --- xen/include/asm-x86/x86_64/efibind.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/include/asm-x86/x86_64/efibind.h b/xen/include/asm-x86/x86_64/efibind.h index b013db175d..ddcfae07ec 100644 --- a/xen/include/asm-x86/x86_64/efibind.h +++ b/xen/include/asm-x86/x86_64/efibind.h @@ -172,7 +172,7 @@ typedef uint64_t UINTN; #ifndef EFIAPI // Forces EFI calling conventions reguardless of compiler options #ifdef _MSC_EXTENSIONS #define EFIAPI __cdecl // Force C calling convention for Microsoft C compiler - #elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) + #elif __clang__ || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) #define EFIAPI __attribute__((__ms_abi__)) // Force Microsoft ABI #else #define EFIAPI // Substitute expresion to force C calling convention -- generated by git-patchbot for /home/xen/git/xen.git#stable-4.13
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