#include <stdint.h>
#include <libkern/OSAtomic.h>
#include <arm/arch.h>
#include <stdbool.h>
int32_t __sync_fetch_and_add_4 (int32_t *ptr, int32_t value)
{
return OSAtomicAdd32(value, ptr) - value;
}
int32_t __sync_fetch_and_sub_4 (int32_t *ptr, int32_t value)
{
return OSAtomicAdd32(-value, ptr) + value;
}
uint32_t __sync_fetch_and_or_4(uint32_t *ptr, uint32_t value)
{
return OSAtomicOr32Orig(value, ptr);
}
uint32_t __sync_fetch_and_and_4(uint32_t *ptr, uint32_t value)
{
return OSAtomicAnd32Orig(value, ptr);
}
uint32_t __sync_fetch_and_xor_4(uint32_t *ptr, uint32_t value)
{
OSAtomicXor32Orig(value, ptr);
}
int32_t __sync_add_and_fetch_4 (int32_t *ptr, int32_t value)
{
return OSAtomicAdd32(value, ptr);
}
int32_t __sync_sub_and_fetch_4 (int32_t *ptr, int32_t value)
{
return OSAtomicAdd32(-value, ptr);
}
uint32_t __sync_or_and_fetch_4 (uint32_t *ptr, int32_t value)
{
return OSAtomicOr32(value, ptr);
}
uint32_t __sync_and_and_fetch_4 (uint32_t *ptr, int32_t value)
{
return OSAtomicAnd32(value, ptr);
}
uint32_t __sync_xor_and_fetch_4 (uint32_t *ptr, int32_t value)
{
return OSAtomicXor32(value, ptr);
}
bool __sync_bool_compare_and_swap_4(int32_t *ptr, int32_t oldval, int32_t newval)
{
return OSAtomicCompareAndSwap32(oldval, newval, ptr);
}
int32_t __sync_val_compare_and_swap_4(int32_t *ptr, int32_t oldval, int32_t newval)
{
int32_t old = *ptr;
OSAtomicCompareAndSwap32(oldval, newval, ptr);
return old;
}
int32_t __sync_lock_test_and_set_4(int32_t *ptr, int32_t value)
{
int32_t old;
do {
old = *ptr;
} while (!OSAtomicCompareAndSwap32(old, value, ptr));
return old;
}
void __sync_lock_release_4(int32_t *ptr)
{
*ptr = 0;
}