author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
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permissions | -rw-r--r-- |
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// Copyright (c) 1997-2009 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 "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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// Contributors: |
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// |
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// Description: |
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// |
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#include <setjmp.h> |
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//Suppressing RVCT compiler warning: |
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// "Warning: #830-D: function "RHeap::operator new" has no corresponding operator delete (to be called if an exception |
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// is thrown during initialization of an allocated object) |
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// __declspec(dllimport) TAny* operator new(TUint aSize, TAny* aBase) throw();" |
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#pragma diag_suppress 830 |
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#include <u32std.h> |
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#pragma diag_default 830 |
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extern "C" { |
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EXPORT_C __NAKED__ int setjmp(jmp_buf __jmpb) |
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{ |
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#if defined( __MARM_THUMB__) && __GCC32__ |
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asm("stmia r0!, {r4-r7}"); |
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asm("mov r2, r8"); |
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asm("mov r3, r9"); |
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asm("mov r4, r10"); |
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asm("mov r5, r11"); |
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asm("mov r6, sp"); |
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asm("mov r7, lr"); |
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asm("stmia r0!, {r2-r7}"); |
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#else |
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asm("stmia r0, {r4-r11, sp, lr} "); // Save the context */ |
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#endif |
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asm("mov r0, #0"); |
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__JUMP(,lr); |
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} |
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EXPORT_C __NAKED__ void longjmp(jmp_buf __jmpb, int __retval) |
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{ |
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#if defined( __MARM_THUMB__) && __GCC32__ |
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asm("mov r3, r0"); // save the jmp_buf pointer |
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asm("add r3, #16"); //add on 16 to get to high registers |
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asm("ldmia r3!, {r4-r7}"); |
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asm("mov r8,r4"); |
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asm("mov r9,r5"); |
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asm("mov r10,r6"); |
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asm("mov r11,r7"); |
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asm("ldmia r3!, {r4-r5}"); //get sp and lr |
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asm("mov sp, r4"); |
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asm("mov lr, r5"); |
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asm("mov r3, r0"); //get the jmp_buf ptr again |
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asm("ldmia r3!, {r4-r7}"); //and restore the lo regs |
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asm("mov r0, r1"); // return(__retval) |
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asm("cmp r0, #0"); |
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asm("bne 1f"); |
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asm("mov r0, #1"); |
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asm("1:"); |
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#else |
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asm("ldmia r0, {r4-r11, sp, lr} "); // Restore the context |
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asm("movs r0, r1"); // return(__retval == 0 ? 1 : retval) |
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asm("moveq r0, #1"); |
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#endif |
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__JUMP(,lr); |
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} |
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} // extern "C" |