353 #define DECL_BITFIELD3(_a, _b, _c) \
354 uint8_t _c, _b, _a
355 #define DECL_BITFIELD4(_a, _b, _c, _d) \
356 uint8_t _d, _c, _b, _a
357 #define DECL_BITFIELD5(_a, _b, _c, _d, _e) \
358 uint8_t _e, _d, _c, _b, _a
359 #define DECL_BITFIELD6(_a, _b, _c, _d, _e, _f) \
360 uint8_t _f, _e, _d, _c, _b, _a
361 #define DECL_BITFIELD7(_a, _b, _c, _d, _e, _f, _g) \
362 uint8_t _g, _f, _e, _d, _c, _b, _a
363 #define DECL_BITFIELD8(_a, _b, _c, _d, _e, _f, _g, _h) \
364 uint8_t _h, _g, _f, _e, _d, _c, _b, _a
365 #else
366 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined
367 #endif /* _BIT_FIELDS_LTOH */
368
369 /* avoid any possibility of clashing with <stddef.h> version */
370 #if defined(_KERNEL) && !defined(_KMEMUSER)
371
372 #if !defined(offsetof)
373 #define offsetof(s, m) ((size_t)(&(((s *)0)->m)))
374 #endif /* !offsetof */
375
376 #define container_of(m, s, name) \
377 (void *)((uintptr_t)(m) - (uintptr_t)offsetof(s, name))
378
379 #define ARRAY_SIZE(x) (sizeof (x) / sizeof (x[0]))
380 #endif /* _KERNEL, !_KMEMUSER */
381
382 #ifdef __cplusplus
383 }
384 #endif
385
386 #endif /* _SYS_SYSMACROS_H */
|
353 #define DECL_BITFIELD3(_a, _b, _c) \
354 uint8_t _c, _b, _a
355 #define DECL_BITFIELD4(_a, _b, _c, _d) \
356 uint8_t _d, _c, _b, _a
357 #define DECL_BITFIELD5(_a, _b, _c, _d, _e) \
358 uint8_t _e, _d, _c, _b, _a
359 #define DECL_BITFIELD6(_a, _b, _c, _d, _e, _f) \
360 uint8_t _f, _e, _d, _c, _b, _a
361 #define DECL_BITFIELD7(_a, _b, _c, _d, _e, _f, _g) \
362 uint8_t _g, _f, _e, _d, _c, _b, _a
363 #define DECL_BITFIELD8(_a, _b, _c, _d, _e, _f, _g, _h) \
364 uint8_t _h, _g, _f, _e, _d, _c, _b, _a
365 #else
366 #error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined
367 #endif /* _BIT_FIELDS_LTOH */
368
369 /* avoid any possibility of clashing with <stddef.h> version */
370 #if defined(_KERNEL) && !defined(_KMEMUSER)
371
372 #if !defined(offsetof)
373 #if defined(__GNUC__)
374 #define offsetof(s, m) __builtin_offsetof(s, m)
375 #else
376 #define offsetof(s, m) ((size_t)(&(((s *)0)->m)))
377 #endif
378 #endif /* !offsetof */
379
380 #define container_of(m, s, name) \
381 (void *)((uintptr_t)(m) - (uintptr_t)offsetof(s, name))
382
383 #define ARRAY_SIZE(x) (sizeof (x) / sizeof (x[0]))
384 #endif /* _KERNEL, !_KMEMUSER */
385
386 #ifdef __cplusplus
387 }
388 #endif
389
390 #endif /* _SYS_SYSMACROS_H */
|