#include <stdio.h>
#ifdef __APPLE__
/* On Darwin the packed body is copied into JIT memory at run time, so the
   run-time bootstrap uses mmap / pthread_jit_write_protect_np /
   sys_icache_invalidate. On Linux the code is decrypted in place and none of
   these are needed. */
#include <sys/mman.h>
#include <string.h>
#include <pthread.h>
#include <libkern/OSCacheControl.h>
#endif

int work(int n) {
   int s;
   int i;
   s = 0;
   for (i = 0; i < n; i++) {
      s += i * 3;
   }
   return s;
}

int main(void) {
   int r;
   r = work(10);
   printf("work(10)=%d\n", r);
   return 0;
}