patch-2.4.18 linux/arch/s390/lib/uaccess.S

• Lines: 122
• Date: Fri Dec 21 16:25:30 2001
• Orig file: linux.orig/arch/s390/lib/uaccess.S
• Orig date: Mon Feb 18 20:18:39 2002

diff -Naur -X /home/marcelo/lib/dontdiff linux.orig/arch/s390/lib/uaccess.S linux/arch/s390/lib/uaccess.S
@@ -6,46 +6,92 @@
  *    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
+ *  These functions have standard call interface
  */
 
 #include <asm/lowcore.h>
 
         .text
         .align 4
-        .globl __copy_from_user_fixup
-__copy_from_user_fixup:
-        l     1,__LC_PGM_OLD_PSW+4
-        sll   4,1
-        srl   4,1
-0:      lhi   3,-4096
-        sll   3,1
-        srl   3,1
-        n     3,__LC_TRANS_EXC_ADDR
-        sr    3,4
-        bm    4(1)
-1:      mvcle 2,4,0
-        b     4(1)
+        .globl __copy_from_user_asm
+__copy_from_user_asm:
+	lr	%r5,%r3
+	sacf	512
+0:	mvcle	%r2,%r4,0
+	jo	0b
+	sacf	0
+	lr	%r2,%r5
+	br	%r14
+1:	l	%r1,__LC_PGM_OLD_PSW+4
+        sll	%r4,1
+        srl	%r4,1
+2:      lhi	%r3,-4096
+        sll	%r3,1
+        srl	%r3,1
+        n	%r3,__LC_TRANS_EXC_ADDR
+        sr	%r3,%r4
+        bm	4(%r1)
+3:      mvcle	%r2,%r4,0
+        b	4(%r1)
         .section __ex_table,"a"
-	.long 1b,0b
+	.long	0b,1b
+	.long	3b,2b
         .previous
 
         .align 4
         .text
-        .globl __copy_to_user_fixup
-__copy_to_user_fixup:
-        l     1,__LC_PGM_OLD_PSW+4
-        sll   4,1
-        srl   4,1
-0:      lhi   5,-4096
-        sll   5,1
-        srl   5,1
-        n     5,__LC_TRANS_EXC_ADDR
-        sr    5,4
-        bm    4(1)
-1:      mvcle 4,2,0
-        b     4(1)
+        .globl __copy_to_user_asm
+__copy_to_user_asm:
+	lr	%r5,%r3
+	sacf	512
+0:	mvcle	%r4,%r2,0
+	jo	0b
+	sacf	0
+	lr	%r2,%r3
+	br	%r14
+1:	l	%r1,__LC_PGM_OLD_PSW+4
+        sll	%r4,1
+        srl	%r4,1
+2:      lhi	%r5,-4096
+        sll	%r5,1
+        srl	%r5,1
+        n	%r5,__LC_TRANS_EXC_ADDR
+        sr	%r5,%r4
+        bm	4(%r1)
+3:      mvcle	%r4,%r2,0
+        b	4(%r1)
         .section __ex_table,"a"
-        .long 1b,0b
+	.long   0b,1b
+        .long	3b,2b
+        .previous
+
+        .align 4
+        .text
+        .globl __clear_user_asm
+__clear_user_asm:
+	lr	%r4,%r2
+	lr	%r5,%r3
+	sr	%r2,%r2
+	sr	%r3,%r3
+	sacf	512
+0:	mvcle	%r4,%r2,0
+	jo	0b
+	sacf	0
+	lr	%r2,%r3
+	br	%r14
+1:	l	%r1,__LC_PGM_OLD_PSW+4
+        sll	%r4,1
+        srl	%r4,1
+2:      lhi	%r5,-4096
+        sll	%r5,1
+        srl	%r5,1
+        n	%r5,__LC_TRANS_EXC_ADDR
+        sr	%r5,%r4
+        bm	4(%r1)
+3:      mvcle	%r4,%r2,0
+        b	4(%r1)
+        .section __ex_table,"a"
+	.long   0b,1b
+        .long	3b,2b
         .previous