os/kernelhwsrv/kerneltest/e32test/defrag/t_pagemove.cia
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
     2 // All rights reserved.
     3 // This component and the accompanying materials are made available
     4 // under the terms of the License "Eclipse Public License v1.0"
     5 // which accompanies this distribution, and is available
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 // e32test\defrag\t_pagemove.cia
    15 // All rights reserved.
    16 // This code is used to test code mofication while moving a page.
    17 // 
    18 //
    19 
    20 #include <u32std.h>
    21 
    22 #ifdef __CPU_ARM
    23 
    24 /*
    25  * Assembly code to test pagemove while writing to code section. 
    26  * NOTE: Do not change instruction ordering without looking at t_pagemove.cpp 
    27  * Look at TestCodeModification and TestCodeAsync (TestCodeModificationAsync)
    28  */
    29 __NAKED__ TInt TestCodeModFunc(void)
    30 	{
    31 	asm("mov     r0, #5 ");
    32 	asm("b 1f");
    33 	/* Need to put 3f here because this jump will move up by one instruction */
    34 	asm("b 3f");
    35 	asm("1: ");
    36 	asm("mov     r0, #1 ");
    37 	asm("b 3f");
    38 	asm("2: ");
    39 	asm("mov     r0, #2 ");
    40 	asm("3: ");
    41 	__JUMP(,lr);
    42 	}
    43 
    44 
    45 __NAKED__ TInt Increment(TInt)
    46 	{
    47 	asm("add r0, r0, #1 ");
    48 	__JUMP(,lr);
    49 	asm("Increment__Fi_end: ");
    50 	}
    51 
    52 __NAKED__ TUint Increment_Length()
    53 	{
    54 	asm("adr r0, Increment__Fi_end ");
    55 	asm("adr r1, Increment__Fi ");
    56 	asm("sub r0, r0, r1 ");
    57 	__JUMP(,lr);
    58 	}
    59 
    60 __NAKED__ TInt Decrement(TInt)
    61 	{
    62 	asm("sub r0, r0, #1 ");
    63 	__JUMP(,lr);
    64 	asm("Decrement__Fi_end: ");
    65 	}
    66 
    67 __NAKED__ TUint Decrement_Length()
    68 	{
    69 	asm("adr r0, Decrement__Fi_end ");
    70 	asm("adr r1, Decrement__Fi ");
    71 	asm("sub r0, r0, r1 ");
    72 	__JUMP(,lr);
    73 	}
    74 
    75 #endif