include/linux/compiler-clang.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __LINUX_COMPILER_TYPES_H
   3 #error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
   4 #endif
   5
   6 /* Some compiler specific definitions are overwritten here
   7  * for Clang compiler
   8  */
   9
  10 #ifdef uninitialized_var
  11 #undef uninitialized_var
  12 #define uninitialized_var(x) x = *(&(x))
  13 #endif
  14
  15 /* same as gcc, this was present in clang-2.6 so we can assume it works
  16  * with any version that can compile the kernel
  17  */
  18 #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
  19
  20 #define randomized_struct_fields_start  struct {
  21 #define randomized_struct_fields_end    };
  22
  23 /* all clang versions usable with the kernel support KASAN ABI version 5 */
  24 #define KASAN_ABI_VERSION 5
  25
  26 /* emulate gcc's __SANITIZE_ADDRESS__ flag */
  27 #if __has_feature(address_sanitizer)
  28 #define __SANITIZE_ADDRESS__
  29 #endif
  30
  31 /* Clang doesn't have a way to turn it off per-function, yet. */
  32 #ifdef __noretpoline
  33 #undef __noretpoline
  34 #endif