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