patch-2.4.2 linux/arch/s390x/lib/uaccess.S

• Lines: 46
• Date: Tue Feb 13 14:13:44 2001
• Orig file: v2.4.1/linux/arch/s390x/lib/uaccess.S
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.1/linux/arch/s390x/lib/uaccess.S linux/arch/s390x/lib/uaccess.S
@@ -0,0 +1,45 @@
+/*
+ *  arch/s390x/lib/uaccess.S
+ *    fixup routines for copy_{from|to}_user functions.
+ *
+ *  S390
+ *    Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Authors(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  These functions have a non-standard call interface
+ */
+
+#include <asm/lowcore.h>
+
+        .text
+        .align 4
+        .globl __copy_from_user_fixup
+__copy_from_user_fixup:
+        lg    1,__LC_PGM_OLD_PSW+8
+0:      lghi  3,-4096
+        ng    3,__LC_TRANS_EXC_ADDR
+        sgr   3,4
+        bm    4(1)
+1:      mvcle 2,4,0
+        b     4(1)
+        .section __ex_table,"a"
+        .align 8
+	.quad 1b,0b
+        .previous
+
+        .align 4
+        .text
+        .globl __copy_to_user_fixup
+__copy_to_user_fixup:
+        lg    1,__LC_PGM_OLD_PSW+8
+0:      lghi  5,-4096
+        ng    5,__LC_TRANS_EXC_ADDR
+        sgr   5,4
+        bm    4(1)
+1:      mvcle 4,2,0
+        b     4(1)
+        .section __ex_table,"a"
+        .align 8
+        .quad 1b,0b
+        .previous
+