diff options
Diffstat (limited to 'include/linux/compiler-clang.h')
| -rw-r--r-- | include/linux/compiler-clang.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h index 49feac0162a5..4fc8e26914ad 100644 --- a/include/linux/compiler-clang.h +++ b/include/linux/compiler-clang.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef __LINUX_COMPILER_TYPES_H -#error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead." +#error "Please do not include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead." #endif /* Compiler specific definitions for Clang compiler */ @@ -118,3 +118,21 @@ #define __diag_ignore_all(option, comment) \ __diag_clang(13, ignore, option) + +/* + * clang has horrible behavior with "g" or "rm" constraints for asm + * inputs, turning them into something worse than "m". Avoid using + * constraints with multiple possible uses (but "ir" seems to be ok): + * + * https://github.com/llvm/llvm-project/issues/20571 + */ +#define ASM_INPUT_G "ir" +#define ASM_INPUT_RM "r" + +/* + * Declare compiler support for __typeof_unqual__() operator. + * + * Bindgen uses LLVM even if our C compiler is GCC, so we cannot + * rely on the auto-detected CONFIG_CC_HAS_TYPEOF_UNQUAL. + */ +#define CC_HAS_TYPEOF_UNQUAL (__clang_major__ >= 19) |