Changeset 372 for trunk/kernel/kern/printk.c

Timestamp:

Aug 14, 2017, 2:40:49 PM (7 years ago)

Author:

max@…

Message:

Add a panic function.

File:

• trunk/kernel/kern/printk.c (modified) (1 diff)

trunk/kernel/kern/printk.c

@@ -412 +412 @@
 }
 
+/////////////////////////////////
+void _panic( char * format , ... )
+{
+    va_list       args;
+    uint32_t      save_sr;
+
+    // get pointers on TXT0 chdev
+    xptr_t    txt0_xp  = chdev_dir.txt[0];
+    cxy_t     txt0_cxy = GET_CXY( txt0_xp );
+    chdev_t * txt0_ptr = GET_PTR( txt0_xp );
+
+    // get extended pointer on remote TXT0 chdev lock
+    xptr_t  lock_xp = XPTR( txt0_cxy , &txt0_ptr->wait_lock );
+
+    // get TXT0 lock in busy waiting mode
+    remote_spinlock_lock_busy( lock_xp , &save_sr );
+
+    // call kernel_printf on TXT0, in busy waiting mode
+    va_start( args , format );
+    kernel_printf( 0 , 1 , format , &args );
+    va_end( args );
+
+    // release lock
+    remote_spinlock_unlock_busy( lock_xp , save_sr );
+
+    hal_disable_irq( NULL );
+
+    while (1)
+    {
+        hal_core_sleep();
+    }
+}
+
 ////////////////////////////////////
 void assert( bool_t       condition,