1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __LINUX_COMPILER_TYPES_H 3 #define __LINUX_COMPILER_TYPES_H 4 5 /* Builtins */ 6 7 /* 8 * __has_builtin is supported on gcc >= 10, clang >= 3 and icc >= 21. 9 * In the meantime, to support gcc < 10, we implement __has_builtin 10 * by hand. 11 */ 12 #ifndef __has_builtin 13 #define __has_builtin(x) (0) 14 #endif 15 16 #ifdef __CHECKER__ 17 /* context/locking */ 18 # define __must_hold(x) __attribute__((context(x,1,1))) 19 # define __acquires(x) __attribute__((context(x,0,1))) 20 # define __releases(x) __attribute__((context(x,1,0))) 21 # define __acquire(x) __context__(x,1) 22 # define __release(x) __context__(x,-1) 23 # define __cond_lock(x,c) ((c) ? ({ __acquire(x); 1; }) : 0) 24 #else /* __CHECKER__ */ 25 /* context/locking */ 26 # define __must_hold(x) 27 # define __acquires(x) 28 # define __releases(x) 29 # define __acquire(x) (void)0 30 # define __release(x) (void)0 31 # define __cond_lock(x,c) (c) 32 #endif /* __CHECKER__ */ 33 34 /* Compiler specific macros. */ 35 #ifdef __GNUC__ 36 #include <linux/compiler-gcc.h> 37 #endif 38 39 #ifndef asm_goto_output 40 #define asm_goto_output(x...) asm goto(x) 41 #endif 42 43 #endif /* __LINUX_COMPILER_TYPES_H */ 44