imgtools/romtools/rombuild/stubs.s
author jascui
Mon, 29 Nov 2010 15:37:06 +0800
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permissions -rw-r--r--
Updating
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@ Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).
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@ All rights reserved.
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@ This component and the accompanying materials are made available
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@ under the terms of the License "Eclipse Public License v1.0"
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@ which accompanies this distribution, and is available
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@ at the URL "http://www.eclipse.org/legal/epl-v10.html".
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@
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@ Initial Contributors:
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@ Nokia Corporation - initial contribution.
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@
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@
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@ Description:
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@ DLL Stub routines
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@ Compile with "gcc -c -Wa,-adhln stubs.s"
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@
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.text
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	.code 32
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	.globl  arm4_stub
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arm4_stub:
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	ldr     ip, [pc]
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	ldr     pc, [ip]
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	.word   0x11223344  @ address in IAT/edata
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	.code 32
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	.globl  armi_stub
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armi_stub:
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	ldr     ip, [pc, #4]
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	ldr     pc, [ip]
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	bx      ip
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	.word   0x11223344  @ address in IAT/edata
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	.code 16
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	.globl  thumb_stub
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thumb_stub:
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	push    {r6}
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	ldr     r6, [pc, #8]
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	ldr     r6, [r6]
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	mov     ip, r6
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	pop     {r6}
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	bx      ip
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	.word   0x11223344	@ address in IAT/edata
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	.code 16
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	.globl  thumb_r3unused_stub
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thumb_r3unused_stub:
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	ldr     r3, [pc, #4]
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	ldr     r3, [r3]
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	bx      r3
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	nop
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	.word   0x11223344	@ address in IAT/edata
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@ In-place rewrites if destination address
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@ is fixed
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@
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	.code 32
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	.globl  fast_armi_stub
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fast_armi_stub:
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	ldr     ip, [pc, #4]
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	bx      ip
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	.word   0           @ nop
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	.word   0x50515253  @ destination address
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	.code 16
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	.globl  fast_thumb_stub
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fast_thumb_stub:
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	push    {r6}
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	ldr     r6, [pc, #8]
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	mov     ip, r6
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	pop     {r6}
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	bx      ip
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	nop
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	.word   0x50515253  @ destination address
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	.code 16
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	.globl  fast_thumb_r3unused_stub
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fast_thumb_r3unused_stub:
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	ldr     r3, [pc, #4]
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	bx      r3
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	nop
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	nop
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