patch-2.1.44 linux/arch/mips/lib/csum.S

• Lines: 26
• Date: Thu Jun 26 12:33:37 1997
• Orig file: v2.1.43/linux/arch/mips/lib/csum.S
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.43/linux/arch/mips/lib/csum.S linux/arch/mips/lib/csum.S
@@ -0,0 +1,25 @@
+#include <asm/addrspace.h>
+#include <asm/asm.h>
+#include <asm/regdef.h>
+
+/*
+ * Compute kernel code checksum to check kernel code against corruption
+ * (Ancient debugging trash ...)
+ */
+		LEAF(csum)
+		LONG_L	t0,cacheflush
+		move	t8,ra
+		jalr	t0
+		li	t0,KSEG1
+		la	t1,final
+		li	t2,KSEG1
+		or	t0,t2
+		or	t1,t2
+		move	v0,zero
+1:		lw	t2,(t0)
+		addiu	t0,4
+		bne	t0,t1,1b
+		xor	v0,t2
+		jr	t8
+		nop
+		END(csum)