C++ show_state函数代码示例

void SendACKFun(void *ptr)
{
  printf("create send ack thread\n");
  char ackframe[7] = "*00ACK/";
  while(1)
  {
    if(needsendACK == 1)
    {
      printf("sending ACK frame....\n");
      SendFrame(fd, ackframe, 7);
      needsendACK = 0;
      show_state();
    }
    usleep(100);
  }
}

void dump_syscall_tables_uniarch(void)
{
	unsigned int i;

	outputstd("syscalls: %d\n", max_nr_syscalls);

	for_each_syscall(i) {
		outputstd("entrypoint %d %s : ",
			syscalls[i].entry->number,
			syscalls[i].entry->name);
		show_state(syscalls[i].entry->flags & ACTIVE);
		if (syscalls[i].entry->flags & AVOID_SYSCALL)
			outputstd(" AVOID");
		outputstd("\n");
	}
}

irqreturn_t mac_nmi_handler(int irq, void *dev_id, struct pt_regs *fp)
{
	int i;
	/* 
	 * generate debug output on NMI switch if 'debug' kernel option given
	 * (only works with Penguin!)
	 */

	in_nmi++;
	for (i=0; i<100; i++)
		udelay(1000);

	if (in_nmi == 1) {
		nmi_hold = 1;
		printk("... pausing, press NMI to resume ...");
	} else {
		printk(" ok!\n");
		nmi_hold = 0;
	}

	barrier();

	while (nmi_hold == 1)
		udelay(1000);

	if ( console_loglevel >= 8 ) {
#if 0
		show_state();
		printk("PC: %08lx\nSR: %04x  SP: %p\n", fp->pc, fp->sr, fp);
		printk("d0: %08lx    d1: %08lx    d2: %08lx    d3: %08lx\n",
		       fp->d0, fp->d1, fp->d2, fp->d3);
		printk("d4: %08lx    d5: %08lx    a0: %08lx    a1: %08lx\n",
		       fp->d4, fp->d5, fp->a0, fp->a1);
	
		if (STACK_MAGIC != *(unsigned long *)current->kernel_stack_page)
			printk("Corrupted stack page\n");
		printk("Process %s (pid: %d, stackpage=%08lx)\n",
			current->comm, current->pid, current->kernel_stack_page);
		if (intr_count == 1)
			dump_stack((struct frame *)fp);
#else
		/* printk("NMI "); */
#endif
	}
	in_nmi--;
	return IRQ_HANDLED;
}

static void receive_chars(struct m68k_serial *info, unsigned short rx)
{
	m68328_uart *uart = &uart_addr[info->line];
	unsigned char ch, flag;

	/*
	 * This do { } while() loop will get ALL chars out of Rx FIFO 
         */
#ifndef CONFIG_XCOPILOT_BUGS
	do {
#endif	
		ch = GET_FIELD(rx, URX_RXDATA);
	
		if(info->is_cons) {
			if(URX_BREAK & rx) { /* whee, break received */
				return;
#ifdef CONFIG_MAGIC_SYSRQ
			} else if (ch == 0x10) { /* ^P */
				show_state();
				show_free_areas(0);
				show_buffers();
/*				show_net_buffers(); */
				return;
			} else if (ch == 0x12) { /* ^R */
				emergency_restart();
				return;
#endif /* CONFIG_MAGIC_SYSRQ */
			}
		}

		flag = TTY_NORMAL;

		if (rx & URX_PARITY_ERROR)
			flag = TTY_PARITY;
		else if (rx & URX_OVRUN)
			flag = TTY_OVERRUN;
		else if (rx & URX_FRAME_ERROR)
			flag = TTY_FRAME;

		tty_insert_flip_char(&info->tport, ch, flag);
#ifndef CONFIG_XCOPILOT_BUGS
	} while((rx = uart->urx.w) & URX_DATA_READY);
#endif

	tty_schedule_flip(&info->tport);
}

static void panic_print_sys_info(void)
{
	if (panic_print & PANIC_PRINT_TASK_INFO)
		show_state();

	if (panic_print & PANIC_PRINT_MEM_INFO)
		show_mem(0, NULL);

	if (panic_print & PANIC_PRINT_TIMER_INFO)
		sysrq_timer_list_show();

	if (panic_print & PANIC_PRINT_LOCK_INFO)
		debug_show_all_locks();

	if (panic_print & PANIC_PRINT_FTRACE_INFO)
		ftrace_dump(DUMP_ALL);
}

static void show_event(int index) {
	int screen_count = s_active_item_count + 1;
	
	int height = bounds.size.h * (screen_count + 2);
	destroy_property_animation(&prop_animation);

	bool invert = false;
	GRect from_rect = GRect(0, -(current_item + 1) * bounds.size.h, bounds.size.w, height);
	if(index < 0) {
		index = screen_count - 1;
		from_rect.origin.y = -(screen_count + 1) * bounds.size.h;
		invert = true;
	}
	else if(index >= screen_count) {
		index = 0;
		from_rect.origin.y = 0;
		invert = true;
	}
	GRect to_rect = GRect(0, -(index + 1) * bounds.size.h, bounds.size.w, height);
	prop_animation = property_animation_create_layer_frame(events_layer, &from_rect, &to_rect);
	animation_set_duration((Animation*) prop_animation, 400);
	animation_schedule((Animation*) prop_animation);

	// if state is about to be shown or hidden then animate it
	if (index == 0 || current_item == 0) {
		int stateFrom = 0, stateTo = 0;
		if (current_item == 1)
			stateFrom = -1;
		else if (current_item > 1)
			stateFrom = 1;
		if (index == 1)
			stateTo = -1;
		else if (index > 1)
			stateTo = 1;
		if (invert && screen_count == 2) {
			stateFrom = -stateFrom;
			stateTo = -stateTo;
		}
		show_state(stateFrom, stateTo);
	}
	
	current_item = index;
	layer_mark_dirty(navi_layer);
}

static int nmi_debug_notify(struct notifier_block *self,
        unsigned long val, void *data)
{
    struct die_args *args = data;

    if (likely(val != DIE_NMI))
        return NOTIFY_DONE;

    if (nmi_actions & NMI_SHOW_STATE)
        show_state();
    if (nmi_actions & NMI_SHOW_REGS)
        show_regs(args->regs);
    if (nmi_actions & NMI_DEBOUNCE)
        mdelay(10);
    if (nmi_actions & NMI_DIE)
        return NOTIFY_BAD;

    return NOTIFY_OK;
}

static irqreturn_t i2c_pxa_handler(int this_irq, void *dev_id)
{
	struct pxa_i2c *i2c = dev_id;
	u32 isr = readl(_ISR(i2c));

	if (i2c_debug > 2 && 0) {
		dev_dbg(&i2c->adap.dev, "%s: ISR=%08x, ICR=%08x, IBMR=%02x\n",
			__func__, isr, readl(_ICR(i2c)), readl(_IBMR(i2c)));
		decode_ISR(isr);
	}

	if (i2c->irqlogidx < ARRAY_SIZE(i2c->isrlog))
		i2c->isrlog[i2c->irqlogidx++] = isr;

	show_state(i2c);

	/*
	 * Always clear all pending IRQs.
	 */
	writel(isr & (ISR_SSD|ISR_ALD|ISR_ITE|ISR_IRF|ISR_SAD|ISR_BED), _ISR(i2c));

	if (isr & ISR_SAD)
		i2c_pxa_slave_start(i2c, isr);
	if (isr & ISR_SSD)
		i2c_pxa_slave_stop(i2c);

	if (i2c_pxa_is_slavemode(i2c)) {
		if (isr & ISR_ITE)
			i2c_pxa_slave_txempty(i2c, isr);
		if (isr & ISR_IRF)
			i2c_pxa_slave_rxfull(i2c, isr);
	} else if (i2c->msg) {
		if (isr & ISR_ITE)
			i2c_pxa_irq_txempty(i2c, isr);
		if (isr & ISR_IRF)
			i2c_pxa_irq_rxfull(i2c, isr);
	} else {
		i2c_pxa_scream_blue_murder(i2c, "spurious irq");
	}

	return IRQ_HANDLED;
}

static void i2c_vr_abort(struct vr_i2c *i2c)
{
	struct i2c_vr_regs __iomem *regs = i2c->regs;
	unsigned long timeout = jiffies + HZ / 4;
	u32 icr;

	while (time_before(jiffies, timeout) && (readl(&regs->ibmr) & 0x1) == 0) {
		icr = readl(&regs->icr);

		icr &= ~ICR_START;
		icr |= ICR_ACKNAK | ICR_STOP | ICR_TB;

		writel(icr, &regs->icr);

		show_state(i2c);

		msleep(1);
	}

	icr = readl(&regs->icr) & ~(ICR_MA | ICR_START | ICR_STOP);
	writel(icr, &regs->icr);
}

static  void receive_chars(struct tty_struct *tty, struct pt_regs *regs)
{
    unsigned char ch;
    static unsigned char seen_esc = 0;

    while ( (ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR)) ) {
        if ( ch == 27 && seen_esc == 0 ) {
            seen_esc = 1;
            continue;
        } else {
            if ( seen_esc==1 && ch == 'O' ) {
                seen_esc = 2;
                continue;
            } else if ( seen_esc == 2 ) {
                if ( ch == 'P' ) show_state();		/* F1 key */
#ifdef CONFIG_KDB
                if ( ch == 'S' )
                    kdb(KDB_REASON_KEYBOARD, 0, (kdb_eframe_t) regs);
#endif

                seen_esc = 0;
                continue;
            }
        }
        seen_esc = 0;
        if (tty->flip.count >= TTY_FLIPBUF_SIZE) break;

        *tty->flip.char_buf_ptr = ch;

        *tty->flip.flag_buf_ptr = 0;

        tty->flip.flag_buf_ptr++;
        tty->flip.char_buf_ptr++;
        tty->flip.count++;
    }
    tty_flip_buffer_push(tty);
}

static  void receive_chars(struct tty_struct *tty, struct pt_regs *regs)
{
	unsigned char ch;
	static unsigned char seen_esc = 0;

	while ( (ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR)) ) {
		if ( ch == 27 && seen_esc == 0 ) {
			seen_esc = 1;
			continue;
		} else {
			if ( seen_esc==1 && ch == 'O' ) {
				seen_esc = 2;
				continue;
			} else if ( seen_esc == 2 ) {
				if ( ch == 'P' ) /* F1 */
					show_state();
#ifdef CONFIG_MAGIC_SYSRQ
				if ( ch == 'S' ) { /* F4 */
					do
						ch = ia64_ssc(0, 0, 0, 0,
							      SSC_GETCHAR);
					while (!ch);
					handle_sysrq(ch, regs, NULL);
				}
#endif
				seen_esc = 0;
				continue;
			}
		}
		seen_esc = 0;

		if (tty_insert_flip_char(tty, ch, TTY_NORMAL) == 0)
			break;
	}
	tty_flip_buffer_push(tty);
}

static int try_to_freeze_tasks(bool sig_only)
{
	struct task_struct *g, *p;
	unsigned long end_time;
	unsigned int todo;
	struct timeval start, end;
	u64 elapsed_csecs64;
	unsigned int elapsed_csecs;
	unsigned int wakeup = 0;

	do_gettimeofday(&start);

	end_time = jiffies + TIMEOUT;
	do {
		todo = 0;
		read_lock(&tasklist_lock);
		do_each_thread(g, p) {
			if (frozen(p) || !freezeable(p))
				continue;

			if (!freeze_task(p, sig_only))
				continue;

			/*
			 * Now that we've done set_freeze_flag, don't
			 * perturb a task in TASK_STOPPED or TASK_TRACED.
			 * It is "frozen enough".  If the task does wake
			 * up, it will immediately call try_to_freeze.
			 *
			 * Because freeze_task() goes through p's
			 * scheduler lock after setting TIF_FREEZE, it's
			 * guaranteed that either we see TASK_RUNNING or
			 * try_to_stop() after schedule() in ptrace/signal
			 * stop sees TIF_FREEZE.
			 */
			if (!task_is_stopped_or_traced(p) &&
			    !freezer_should_skip(p))
				todo++;
		} while_each_thread(g, p);
		read_unlock(&tasklist_lock);
		yield();			/* Yield is okay here */
		if (todo && has_wake_lock(WAKE_LOCK_SUSPEND)) {
			wakeup = 1;
			break;
		}
		if (time_after(jiffies, end_time))
			break;
	} while (todo);

	do_gettimeofday(&end);
	elapsed_csecs64 = timeval_to_ns(&end) - timeval_to_ns(&start);
	do_div(elapsed_csecs64, NSEC_PER_SEC / 100);
	elapsed_csecs = elapsed_csecs64;

	if (todo) {
		/* This does not unfreeze processes that are already frozen
		 * (we have slightly ugly calling convention in that respect,
		 * and caller must call thaw_processes() if something fails),
		 * but it cleans up leftover PF_FREEZE requests.
		 */
		printk("\n");
		printk(KERN_ERR "Freezing of tasks %s after %d.%02d seconds "
				"(%d tasks refusing to freeze):\n",
				wakeup ? "aborted" : "failed",
				elapsed_csecs / 100, elapsed_csecs % 100, todo);
		if(!wakeup)
			show_state();
		read_lock(&tasklist_lock);
		do_each_thread(g, p) {
			task_lock(p);
			if (freezing(p) && !freezer_should_skip(p) &&
							elapsed_csecs > 100)
				printk(KERN_ERR " %s\n", p->comm);
			cancel_freezing(p);
			task_unlock(p);
		} while_each_thread(g, p);
		read_unlock(&tasklist_lock);
	} else {

void handle_sysrq(int key, struct pt_regs *pt_regs,
		  struct kbd_struct *kbd, struct tty_struct *tty)
{
	int orig_log_level = console_loglevel;

	if (!key)
		return;

	console_loglevel = 7;
	printk(KERN_INFO "SysRq: ");
	switch (key) {
	case 'r':					    /* R -- Reset raw mode */
		if (kbd) {
			kbd->kbdmode = VC_XLATE;
			printk("Keyboard mode set to XLATE\n");
		}
		break;
#ifdef CONFIG_VT
	case 'k':					    /* K -- SAK */
		printk("SAK\n");
		if (tty)
			do_SAK(tty);
		reset_vc(fg_console);
		break;
#endif
	case 'b':					    /* B -- boot immediately */
		printk("Resetting\n");
		machine_restart(NULL);
		break;
	case 'o':					    /* O -- power off */
		if (sysrq_power_off) {
			printk("Power off\n");
			sysrq_power_off();
		}
		break;
	case 's':					    /* S -- emergency sync */
		printk("Emergency Sync\n");
		emergency_sync_scheduled = EMERG_SYNC;
		wakeup_bdflush(0);
		break;
	case 'u':					    /* U -- emergency remount R/O */
		printk("Emergency Remount R/O\n");
		emergency_sync_scheduled = EMERG_REMOUNT;
		wakeup_bdflush(0);
		break;
	case 'p':					    /* P -- show PC */
		printk("Show Regs\n");
		if (pt_regs)
			show_regs(pt_regs);
		break;
	case 't':					    /* T -- show task info */
		printk("Show State\n");
		show_state();
		break;
	case 'm':					    /* M -- show memory info */
		printk("Show Memory\n");
		show_mem();
		break;
	case '0' ... '9':				    /* 0-9 -- set console logging level */
		orig_log_level = key - '0';
		printk("Log level set to %d\n", orig_log_level);
		break;
	case 'e':					    /* E -- terminate all user processes */
		printk("Terminate All Tasks\n");
		send_sig_all(SIGTERM, 0);
		orig_log_level = 8;			    /* We probably have killed syslogd */
		break;
	case 'i':					    /* I -- kill all user processes */
		printk("Kill All Tasks\n");
		send_sig_all(SIGKILL, 0);
		orig_log_level = 8;
		break;
	case 'l':					    /* L -- kill all processes including init */
		printk("Kill ALL Tasks (even init)\n");
		send_sig_all(SIGKILL, 1);
		orig_log_level = 8;
		break;
	default:					    /* Unknown: help */
		if (kbd)
			printk("unRaw ");
#ifdef CONFIG_VT
		if (tty)
			printk("saK ");
#endif
		printk("Boot ");
		if (sysrq_power_off)
			printk("Off ");
		printk("Sync Unmount showPc showTasks showMem loglevel0-8 tErm kIll killalL\n");
		/* Don't use 'A' as it's handled specially on the Sparc */
	}

	console_loglevel = orig_log_level;
}

static _INLINE_ void receive_chars(struct NIOS_serial *info, struct pt_regs *regs, unsigned short rx)
{
	struct tty_struct *tty = info->tty;
	unsigned char ch;
	np_uart *	uart= (np_uart *)(info->port);

	/*
	 * This do { } while() loop will get ALL chars out of Rx FIFO
         */
	do {
		ch = uart->np_uartrxdata;

		if(info->is_cons) {
#ifdef CONFIG_MAGIC_SYSRQ
			if(rx & np_uartstatus_brk_mask) {
				batten_down_hatches();
				return;
			} else if (ch == 0x10) { /* ^P */
				show_state();
				show_mem();
				return;
			} else if (ch == 0x12) { /* ^R */
				hard_reset_now();
				return;
#ifdef DEBUG
			} else if (ch == 0x02) { /* ^B */
				batten_down_hatches();
				return;
			} else if (ch == 0x01) { /* ^A */
				asm("trap 0");		/* Back to monitor */
				return;			/* (won't be coming back) */
#endif
			}
#endif /* CONFIG_MAGIC_SYSRQ */
		}

		if(!tty)
			goto clear_and_exit;

		/*
		 * Make sure that we do not overflow the buffer
		 */
		if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
			queue_task(&tty->flip.tqueue, &tq_timer);
			return;
		}

		if(rx & np_uartstatus_pe_mask) {
			*tty->flip.flag_buf_ptr++ = TTY_PARITY;
			status_handle(info, rx);
		} else if(rx & np_uartstatus_roe_mask) {
			*tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
			status_handle(info, rx);
		} else if(rx & np_uartstatus_fe_mask) {
			*tty->flip.flag_buf_ptr++ = TTY_FRAME;
			status_handle(info, rx);
		} else if(rx & np_uartstatus_brk_mask) {
			*tty->flip.flag_buf_ptr++ = TTY_BREAK;
			status_handle(info, rx);
		} else {
			*tty->flip.flag_buf_ptr++ = 0; /* XXX */
		}
		*tty->flip.char_buf_ptr++ = ch;
		tty->flip.count++;

	} while((rx = uart->np_uartstatus) & np_uartstatus_rrdy_mask);

	queue_task(&tty->flip.tqueue, &tq_timer);

clear_and_exit:
	return;
}

static _INLINE_ void receive_chars(struct bf535_serial *info, struct pt_regs *regs, unsigned short rx)
{
	struct tty_struct *tty = info->tty;
	unsigned char ch;
	int idx = info->hub2;

	/*
	 * This do { } while() loop will get ALL chars out of Rx FIFO 
         */
	do {
		ch = (unsigned char) rx;
	
		if(info->is_cons) {
			if (UART_LSR(idx) & UART_LSR_BI){ /* break received */ 
				status_handle(info, UART_LSR(idx));
				return;
			} else if (ch == 0x10) { /* ^P */
				show_state();
				show_free_areas();
				show_buffers();
/*				show_net_buffers(); */
				return;
			} else if (ch == 0x12) { /* ^R */
				machine_restart(NULL);
				return;
			}
		}

		if(!tty){
			printk("no tty\n");
			goto clear_and_exit;
		}
		
		/*
		 * Make sure that we do not overflow the buffer
		 */
		if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
			queue_task(&tty->flip.tqueue, &tq_timer);
			return;
		}

		if(UART_LSR(idx) & UART_LSR_PE) {
			*tty->flip.flag_buf_ptr++ = TTY_PARITY;
			status_handle(info, UART_LSR(idx));
		} else if(UART_LSR(idx) & UART_LSR_OE) {
			*tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
			status_handle(info, UART_LSR(idx));
		} else if(UART_LSR(idx) & UART_LSR_FE) {
			*tty->flip.flag_buf_ptr++ = TTY_FRAME;
			status_handle(info, UART_LSR(idx));
		} else {
			*tty->flip.flag_buf_ptr++ = 0; /* XXX */
		}

		tty->flip.count++;
                *tty->flip.char_buf_ptr++ = ch;

		ACCESS_PORT_IER(idx) /* change access to port data */
		rx = UART_RBR(idx);
	} while(UART_LSR(idx) & UART_LSR_DR);

	queue_task(&tty->flip.tqueue, &tq_timer);

clear_and_exit:
	return;
}