mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
67f51b40ca
Copy these from Linux v5.7-rc5 tag. This brings in some handy new attributes and is otherwise important to keep in sync. We drop the reference to smp_read_barrier_depends() as it is not relevant on the architectures we support at this time, based on where it's implemented in Linux today. We drop the call to kasan_check_read() as that is not relevant to U-Boot as well. Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Tom Rini <trini@konsulko.com>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/* 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."
|
|
#endif
|
|
|
|
/* Compiler specific definitions for Clang compiler */
|
|
|
|
#define uninitialized_var(x) x = *(&(x))
|
|
|
|
/* same as gcc, this was present in clang-2.6 so we can assume it works
|
|
* with any version that can compile the kernel
|
|
*/
|
|
#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
|
|
|
|
/* all clang versions usable with the kernel support KASAN ABI version 5 */
|
|
#define KASAN_ABI_VERSION 5
|
|
|
|
#if __has_feature(address_sanitizer) || __has_feature(hwaddress_sanitizer)
|
|
/* emulate gcc's __SANITIZE_ADDRESS__ flag */
|
|
#define __SANITIZE_ADDRESS__
|
|
#define __no_sanitize_address \
|
|
__attribute__((no_sanitize("address", "hwaddress")))
|
|
#else
|
|
#define __no_sanitize_address
|
|
#endif
|
|
|
|
/*
|
|
* Not all versions of clang implement the the type-generic versions
|
|
* of the builtin overflow checkers. Fortunately, clang implements
|
|
* __has_builtin allowing us to avoid awkward version
|
|
* checks. Unfortunately, we don't know which version of gcc clang
|
|
* pretends to be, so the macro may or may not be defined.
|
|
*/
|
|
#if __has_builtin(__builtin_mul_overflow) && \
|
|
__has_builtin(__builtin_add_overflow) && \
|
|
__has_builtin(__builtin_sub_overflow)
|
|
#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1
|
|
#endif
|
|
|
|
/* The following are for compatibility with GCC, from compiler-gcc.h,
|
|
* and may be redefined here because they should not be shared with other
|
|
* compilers, like ICC.
|
|
*/
|
|
#define barrier() __asm__ __volatile__("" : : : "memory")
|