| #ifndef __LINUX_COMPILER_H |
| #error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead." |
| #endif |
| |
| /* Some compiler specific definitions are overwritten here |
| * for Clang compiler |
| */ |
| |
| #ifdef uninitialized_var |
| #undef uninitialized_var |
| #define uninitialized_var(x) x = *(&(x)) |
| #endif |
| |
| /* 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__) |
| |
| #ifdef CONFIG_LTO_CLANG |
| #ifdef CONFIG_FTRACE_MCOUNT_RECORD |
| #define __norecordmcount \ |
| __attribute__((__section__(".text..ftrace"))) |
| #endif |
| |
| #define __nocfi __attribute__((no_sanitize("cfi"))) |
| #endif |
| |
| /* all clang versions usable with the kernel support KASAN ABI version 5 */ |
| #define KASAN_ABI_VERSION 5 |
| |
| /* emulate gcc's __SANITIZE_ADDRESS__ flag */ |
| #if __has_feature(address_sanitizer) |
| #define __SANITIZE_ADDRESS__ |
| #endif |
| |
| /* Clang doesn't have a way to turn it off per-function, yet. */ |
| #ifdef __noretpoline |
| #undef __noretpoline |
| #endif |