From: acevest <zhaoyanbai@126.com>
Date: Tue, 16 May 2023 07:54:14 +0000 (+0800)
Subject: 关中断执行print*
X-Git-Url: http://zhaoyanbai.com/repos/html/index.html?a=commitdiff_plain;h=8c86cb1777c2f75bbef3ec331fa0c110c31cb8b1;p=kernel.git

关中断执行print*
---

diff --git a/kernel/printk.c b/kernel/printk.c
index 77a3a46..08eee39 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -15,34 +15,43 @@
  *--------------------------------------------------------------------------
  */
 
+#include <irq.h>
 #include <system.h>
 #include <tty.h>
-
 int vsprintf(char *buf, const char *fmt, char *args);
 
 char pkbuf[1024];
 extern tty_t default_tty;
 int printk(const char *fmtstr, ...) {
+    unsigned long iflags;
+    irq_save(iflags);
     char *args = (char *)(((char *)&fmtstr) + 4);
     int size = vsprintf(pkbuf, fmtstr, args);
     tty_write(&default_tty, pkbuf, (size_t)size);
+    irq_restore(iflags);
     return 0;
 }
 
 extern tty_t debug_tty;
 char pdbuf[1024];
 int printd(const char *fmtstr, ...) {
+    unsigned long iflags;
+    irq_save(iflags);
     char *args = (char *)(((char *)&fmtstr) + 4);
     int size = vsprintf(pdbuf, fmtstr, args);
     tty_write(&debug_tty, pdbuf, (size_t)size);
+    irq_restore(iflags);
     return 0;
 }
 
 char plobuf[1024];
 extern tty_t monitor_tty;
 int printlo(unsigned int xpos, unsigned int ypos, const char *fmtstr, ...) {
+    unsigned long iflags;
+    irq_save(iflags);
     char *args = (char *)(((char *)&fmtstr) + 4);
     int size = vsprintf(plobuf, fmtstr, args);
     tty_write_at(&monitor_tty, xpos, ypos, plobuf, (size_t)size);
+    irq_restore(iflags);
     return 0;
 }