int main (void)
{
pthread_t thread;
int rv;
pthread_attr_t attr;
size_t stacksize, guardsize;
char *stackaddr;
pthread_attr_init(&attr); /* 起始化執行緒屬性物件*/
/* 申請用作執行緒堆疊的空間 */
stackaddr = (void *)thread_stack_alloc(PTHREAD_STACK_MIN);
/* 設定執行緒屬性物件中的堆疊位址和大小 */
rv = pthread_attr_setstack(&attr, stackaddr, PTHREAD_STACK_MIN);
check_error(rv, "pthread_setstack()");
/* 檢視堆疊屬性值 */
pthread_attr_getstack(&attr, (void *)&stackaddr, &stacksize);
pthread_attr_getguardsize(&attr, &guardsize);
printf("stack attributes: stackaddr=%d, stacksize=%d, guardsize=%d\n",
stackaddr, stacksize, guardsize);
/* 建立執行緒 */
rv = pthread_create(&thread, &attr, (void *(*)())Hello, (void *)NULL);
check_error(rv, "pthread_create()");
pthread_attr_destroy(&attr); /* 及時銷毀執行緒屬性物件，避免再次使用 */
check_error(rv, "pthread_attr_destroy()");
/* ... 後繼程式程式碼 ... */
pthread_exit(NULL);
}
static void __smp_boot_secondary(int cpu, secondary_entry_fn entry)
{
int ret;
secondary_data.stack = thread_stack_alloc();
secondary_data.entry = entry;
mmu_mark_disabled(cpu);
ret = cpu_psci_cpu_boot(cpu);
assert(ret == 0);
while (!cpu_online(cpu))
wfe();
}
