母猪的产后护理p级

{

unsigned long vectors = CONFIG_VECTORS_BASE;

……

memcpy(void *)vectors,_ vectors_ start, vectors_end - __vectors_start);

memcpy((void *)vectors + 0x200,__stubs_ start, __stubs_end - stubs _start);

memcpy((void *)vectors + 0x1000 - kuser_sz.__kuser_helper_start, kuser_sz) ;

……

}此处代码含义是指什么?

sem_t begin_seml;

sem_t begin_sem2;

sem_t end_sem;

int x, y, rl, r2;

void func1(void* arg){

printf("thread0-1 running \n");

while(1)

{

sem_wait(&begin_sem1).y =1;     //  asm volatile("mfence": : :"memory ");

r1 = s;

sem post (&end_sem);

void func2(voidr arg)

printf("pthread2 runningin.

while(l)

{

sem_wait(&begin_sem2)=2.     //asm volatile(mfence:::memory);

sem post &end_sem

……