Hi Ola,
I'm trying to get the linux-generic timer implementation running on my
32-bit platform and I have the following issue:
_ODP_STATIC_ASSERT(sizeof(tick_buf_t) == 16, "sizeof(tick_buf_t) == 16");
fails because sizeof(tick_buf_t) is actually larger because of the size of
odp_atomic_u64_t (already 16 bytes due to lock and alignment):
/**
* Atomic 64-bit unsigned integer
*/
typedef struct {
uint64_t v; /**< Actual storage for the atomic variable */
#if __GCC_ATOMIC_LLONG_LOCK_FREE < 2
/* Some architectures do not support lock-free operations on 64-bit
* data types. We use a spin lock to ensure atomicity. */
char lock; /**< Spin lock (if needed) used to ensure atomic access
*/
#endif
} odp_atomic_u64_t
ODP_ALIGNED(sizeof(uint64_t)); /* Enforce alignement! */
Should size of 16 bytes be enforced for lockless implementation only or it
is required also for lock-based implementation ()?
Thanks,
Alex
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