patch-2.4.6 linux/arch/i386/lib/putuser.S
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- Lines: 72
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.5/linux/arch/i386/lib/putuser.S
- Orig date:
Mon Jan 12 13:37:26 1998
diff -u --recursive --new-file v2.4.5/linux/arch/i386/lib/putuser.S linux/arch/i386/lib/putuser.S
@@ -1,71 +0,0 @@
-/*
- * __put_user functions.
- *
- * (C) Copyright 1998 Linus Torvalds
- *
- * These functions have a non-standard call interface
- * to make them more efficient.
- */
-
-/*
- * __put_user_X
- *
- * Inputs: %eax contains the address
- * %edx contains the value
- *
- * Outputs: %eax is error code (0 or -EFAULT)
- * %ecx is corrupted (will contain "current_task").
- *
- * These functions should not modify any other registers,
- * as they get called from within inline assembly.
- */
-
-addr_limit = 12
-
-.text
-.align 4
-.globl __put_user_1
-__put_user_1:
- movl %esp,%ecx
- andl $0xffffe000,%ecx
- cmpl addr_limit(%ecx),%eax
- jae bad_put_user
-1: movb %dl,(%eax)
- xorl %eax,%eax
- ret
-
-.align 4
-.globl __put_user_2
-__put_user_2:
- addl $1,%eax
- movl %esp,%ecx
- jc bad_put_user
- andl $0xffffe000,%ecx
- cmpl addr_limit(%ecx),%eax
- jae bad_put_user
-2: movw %dx,-1(%eax)
- xorl %eax,%eax
- ret
-
-.align 4
-.globl __put_user_4
-__put_user_4:
- addl $3,%eax
- movl %esp,%ecx
- jc bad_put_user
- andl $0xffffe000,%ecx
- cmpl addr_limit(%ecx),%eax
- jae bad_put_user
-3: movl %edx,-3(%eax)
- xorl %eax,%eax
- ret
-
-bad_put_user:
- movl $-14,%eax
- ret
-
-.section __ex_table,"a"
- .long 1b,bad_put_user
- .long 2b,bad_put_user
- .long 3b,bad_put_user
-.previous
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