34 #ifndef _RTE_COMMON_H_
35 #define _RTE_COMMON_H_
55 #define typeof __typeof__
63 #if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L
64 #define RTE_STD_C11 __extension__
70 #ifdef RTE_TOOLCHAIN_GCC
71 #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + \
75 #ifdef RTE_ARCH_STRICT_ALIGN
77 typedef uint32_t unaligned_uint32_t __attribute__ ((aligned(1)));
78 typedef uint16_t unaligned_uint16_t __attribute__ ((aligned(1)));
81 typedef uint32_t unaligned_uint32_t;
82 typedef uint16_t unaligned_uint16_t;
88 #define __rte_aligned(a) __attribute__((__aligned__(a)))
93 #define __rte_packed __attribute__((__packed__))
96 #define __rte_deprecated __attribute__((__deprecated__))
103 #define __rte_unused __attribute__((__unused__))
109 #define RTE_SET_USED(x) (void)(x)
119 #define RTE_INIT(func) \
120 static void __attribute__((constructor, used)) func(void)
131 #define RTE_INIT_PRIO(func, prio) \
132 static void __attribute__((constructor(prio), used)) func(void)
137 #define __rte_always_inline inline __attribute__((always_inline))
142 #define __rte_noinline __attribute__((noinline))
149 #define RTE_PTR_ADD(ptr, x) ((void*)((uintptr_t)(ptr) + (x)))
154 #define RTE_PTR_SUB(ptr, x) ((void*)((uintptr_t)ptr - (x)))
161 #define RTE_PTR_DIFF(ptr1, ptr2) ((uintptr_t)(ptr1) - (uintptr_t)(ptr2))
172 #define RTE_PTR_ALIGN_FLOOR(ptr, align) \
173 ((typeof(ptr))RTE_ALIGN_FLOOR((uintptr_t)ptr, align))
181 #define RTE_ALIGN_FLOOR(val, align) \
182 (typeof(val))((val) & (~((typeof(val))((align) - 1))))
190 #define RTE_PTR_ALIGN_CEIL(ptr, align) \
191 RTE_PTR_ALIGN_FLOOR((typeof(ptr))RTE_PTR_ADD(ptr, (align) - 1), align)
199 #define RTE_ALIGN_CEIL(val, align) \
200 RTE_ALIGN_FLOOR(((val) + ((typeof(val)) (align) - 1)), align)
209 #define RTE_PTR_ALIGN(ptr, align) RTE_PTR_ALIGN_CEIL(ptr, align)
218 #define RTE_ALIGN(val, align) RTE_ALIGN_CEIL(val, align)
243 #define RTE_BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
245 extern int RTE_BUILD_BUG_ON_detected_error;
246 #define RTE_BUILD_BUG_ON(condition) do { \
247 ((void)sizeof(char[1 - 2*!!(condition)])); \
249 RTE_BUILD_BUG_ON_detected_error = 1; \
264 return n && !(n & (n - 1));
276 static inline uint32_t
298 static inline uint64_t
317 #define RTE_MIN(a, b) \
319 typeof (a) _a = (a); \
320 typeof (b) _b = (b); \
327 #define RTE_MAX(a, b) \
329 typeof (a) _a = (a); \
330 typeof (b) _b = (b); \
347 static inline uint32_t
350 return __builtin_ctz(v);
361 static inline uint32_t
372 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
390 #define container_of(ptr, type, member) __extension__ ({ \
391 const typeof(((type *)0)->member) *_ptr = (ptr); \
392 __attribute__((unused)) type *_target_ptr = \
394 (type *)(((uintptr_t)_ptr) - offsetof(type, member)); \
398 #define _RTE_STR(x) #x
400 #define RTE_STR(x) _RTE_STR(x)
407 #define RTE_FMT(fmt, ...) fmt "%.0s", __VA_ARGS__ ""
408 #define RTE_FMT_HEAD(fmt, ...) fmt
409 #define RTE_FMT_TAIL(fmt, ...) __VA_ARGS__
412 #define RTE_LEN2MASK(ln, tp) \
413 ((tp)((uint64_t)-1 >> (sizeof(uint64_t) * CHAR_BIT - (ln))))
416 #define RTE_DIM(a) (sizeof (a) / sizeof ((a)[0]))
432 static inline uint64_t
436 unsigned long long size;
438 while (isspace((
int)*str))
444 size = strtoull(str, &endptr, 0);
452 case 'G':
case 'g': size *= 1024;
453 case 'M':
case 'm': size *= 1024;
454 case 'K':
case 'k': size *= 1024;
475 rte_exit(
int exit_code,
const char *format, ...)
476 __attribute__((noreturn))
477 __attribute__((format(printf, 2, 3)));
static int rte_is_aligned(void *ptr, unsigned align)
static uint64_t rte_align64pow2(uint64_t v)
static uint32_t rte_log2_u32(uint32_t v)
static uint32_t rte_bsf32(uint32_t v)
static uint32_t rte_align32pow2(uint32_t x)
uint64_t unaligned_uint64_t
#define RTE_PTR_ALIGN(ptr, align)
static int rte_is_power_of_2(uint32_t n)
static uint64_t rte_str_to_size(const char *str)