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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/lib/copy_from_user.S
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/lib/copy_from_user.S')
-rw-r--r--ANDROID_3.4.5/arch/arm/lib/copy_from_user.S104
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diff --git a/ANDROID_3.4.5/arch/arm/lib/copy_from_user.S b/ANDROID_3.4.5/arch/arm/lib/copy_from_user.S
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index 66a477a3..00000000
--- a/ANDROID_3.4.5/arch/arm/lib/copy_from_user.S
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * linux/arch/arm/lib/copy_from_user.S
- *
- * Author: Nicolas Pitre
- * Created: Sep 29, 2005
- * Copyright: MontaVista Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-
-/*
- * Prototype:
- *
- * size_t __copy_from_user(void *to, const void *from, size_t n)
- *
- * Purpose:
- *
- * copy a block to kernel memory from user memory
- *
- * Params:
- *
- * to = kernel memory
- * from = user memory
- * n = number of bytes to copy
- *
- * Return value:
- *
- * Number of bytes NOT copied.
- */
-
-#ifndef CONFIG_THUMB2_KERNEL
-#define LDR1W_SHIFT 0
-#else
-#define LDR1W_SHIFT 1
-#endif
-#define STR1W_SHIFT 0
-
- .macro ldr1w ptr reg abort
- ldrusr \reg, \ptr, 4, abort=\abort
- .endm
-
- .macro ldr4w ptr reg1 reg2 reg3 reg4 abort
- ldr1w \ptr, \reg1, \abort
- ldr1w \ptr, \reg2, \abort
- ldr1w \ptr, \reg3, \abort
- ldr1w \ptr, \reg4, \abort
- .endm
-
- .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
- ldr4w \ptr, \reg1, \reg2, \reg3, \reg4, \abort
- ldr4w \ptr, \reg5, \reg6, \reg7, \reg8, \abort
- .endm
-
- .macro ldr1b ptr reg cond=al abort
- ldrusr \reg, \ptr, 1, \cond, abort=\abort
- .endm
-
- .macro str1w ptr reg abort
- W(str) \reg, [\ptr], #4
- .endm
-
- .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
- stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8}
- .endm
-
- .macro str1b ptr reg cond=al abort
- str\cond\()b \reg, [\ptr], #1
- .endm
-
- .macro enter reg1 reg2
- mov r3, #0
- stmdb sp!, {r0, r2, r3, \reg1, \reg2}
- .endm
-
- .macro exit reg1 reg2
- add sp, sp, #8
- ldmfd sp!, {r0, \reg1, \reg2}
- .endm
-
- .text
-
-ENTRY(__copy_from_user)
-
-#include "copy_template.S"
-
-ENDPROC(__copy_from_user)
-
- .pushsection .fixup,"ax"
- .align 0
- copy_abort_preamble
- ldmfd sp!, {r1, r2}
- sub r3, r0, r1
- rsb r1, r3, r2
- str r1, [sp]
- bl __memzero
- ldr r0, [sp], #4
- copy_abort_end
- .popsection
-