netdev rt_enter_critical_调度锁

netsate命令调用hardfault了

发布于 2024-01-11 10:31:51 浏览：615 订阅该版

```c
void list_tcps(void)
{
    rt_uint32_t num = 0;
    struct tcp_pcb *pcb;
    char local_ip_str[16];
    char remote_ip_str[16];

extern struct tcp_pcb *tcp_active_pcbs;
    extern union tcp_listen_pcbs_t tcp_listen_pcbs;
    extern struct tcp_pcb *tcp_tw_pcbs;

rt_enter_critical();
    rt_kprintf("Active PCB states:\n");
    for(pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next)
    {
        //strcpy(local_ip_str, ipaddr_ntoa(&(pcb->local_ip)));
        //strcpy(remote_ip_str, ipaddr_ntoa(&(pcb->remote_ip)));

rt_kprintf("Listen PCB states:\n");
    num = 0;
    for(pcb = (struct tcp_pcb *)tcp_listen_pcbs.pcbs; pcb != NULL; pcb = pcb->next)
    {
        rt_kprintf("#%d local port %d ", num++, pcb->local_port);
        rt_kprintf("state: %s\n", tcp_debug_state_str(pcb->state));
    }

rt_kprintf("TIME-WAIT PCB states:\n");
    num = 0;
    for(pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next)
    {
        strcpy(local_ip_str, ipaddr_ntoa(&(pcb->local_ip)));
        strcpy(remote_ip_str, ipaddr_ntoa(&(pcb->remote_ip)));

rt_kprintf("#%d %s:%d <==> %s:%d snd_nxt 0x%08X rcv_nxt 0x%08X ",
                   num++,
                   local_ip_str,
                   pcb->local_port,
                   remote_ip_str,
                   pcb->remote_port,
                   pcb->snd_nxt,
                   pcb->rcv_nxt);
        rt_kprintf("state: %s\n", tcp_debug_state_str(pcb->state));
    }
    rt_exit_critical();
}
FINSH_FUNCTION_EXPORT(list_tcps, list all of tcp connections);
#endif /* LWIP_TCP */
```
通过测试，发现是在etherntif.c中的list_tcps卡死的，注释掉rt_enter_critical和rt_exit_critical就正常了。。。