patch-2.0.21-2.1.0 linux/arch/m68k/lib/semaphore.S

• Lines: 30
• Date: Wed Sep 25 10:47:40 1996
• Orig file: lx2.0/v2.0.21/linux/arch/m68k/lib/semaphore.S
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file lx2.0/v2.0.21/linux/arch/m68k/lib/semaphore.S linux/arch/m68k/lib/semaphore.S
@@ -0,0 +1,29 @@
+/*
+ *  linux/arch/m68k/lib/semaphore.S
+ *
+ *  Copyright (C) 1996  Linus Torvalds
+ *
+ *  m68k version by Andreas Schwab
+ */
+
+#include <linux/linkage.h>
+
+/*
+ * "down_failed" is called with the eventual return address
+ * in %a0, and the address of the semaphore in %a1. We need
+ * to increment the number of waiters on the semaphore,
+ * call "__down()", and then eventually return to try again.
+ */
+ENTRY(down_failed)
+	movel %a0,-(%sp)
+	movel %a1,-(%sp)
+	jbsr SYMBOL_NAME(__down)
+	movel (%sp)+,%a1
+	rts
+
+ENTRY(up_wakeup)
+	movel %a0,-(%sp)
+	movel %a1,-(%sp)
+	jbsr SYMBOL_NAME(__up)
+	movel (%sp)+,%a1
+	rts