AT_VECTOR_SIZE
unsigned long saved_auxv[AT_VECTOR_SIZE]; /* for /proc/PID/auxv */
unsigned long user_auxv[AT_VECTOR_SIZE];
user_auxv[AT_VECTOR_SIZE - 2] = AT_NULL;
user_auxv[AT_VECTOR_SIZE - 1] = AT_NULL;
unsigned long user_auxv[AT_VECTOR_SIZE] = {};
user_auxv[AT_VECTOR_SIZE - 2] = 0;
user_auxv[AT_VECTOR_SIZE - 1] = 0;