Function setup_kernel

lab8/src/5/src/kernel/setup.cpp:68–112

}

extern "C" void setup_kernel()
{

    // 中断管理器
    interruptManager.initialize();
    interruptManager.enableTimeInterrupt();
    interruptManager.setTimeInterrupt((void *)asm_time_interrupt_handler);

    // 输出管理器
    stdio.initialize();

    // 进程/线程管理器
    programManager.initialize();

    // 初始化系统调用
    systemService.initialize();
    // 设置0号系统调用
    systemService.setSystemCall(0, (int)syscall_0);
    // 设置1号系统调用
    systemService.setSystemCall(1, (int)syscall_write);
    // 设置2号系统调用
    systemService.setSystemCall(2, (int)syscall_fork);
    // 设置3号系统调用
    systemService.setSystemCall(3, (int)syscall_exit);

    // 内存管理器
    memoryManager.initialize();

    // 创建第一个线程
    int pid = programManager.executeThread(first_thread, nullptr, "first thread", 1);
    if (pid == -1)
    {
        printf("can not execute thread\n");
        asm_halt();
    }

    ListItem *item = programManager.readyPrograms.front();
    PCB *firstThread = ListItem2PCB(item, tagInGeneralList);
    firstThread->status = ProgramStatus::RUNNING;
    programManager.readyPrograms.pop_front();
    programManager.running = firstThread;
    asm_switch_thread(0, firstThread);

    asm_halt();
}