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Bug 813007 - Remove ExecutableAllocatorSymbian.cpp r=billm

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This commit is contained in:
Jon Coppeard 2012-11-20 10:03:09 +00:00
parent a6216d9879
commit 44536757b3
1 changed files with 0 additions and 73 deletions
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73
js/src/assembler/jit/ExecutableAllocatorSymbian.cpp
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/*
* Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
*/
#include "config.h"
#include "ExecutableAllocator.h"
#if ENABLE_ASSEMBLER && WTF_OS_SYMBIAN
#include <e32hal.h>
#include <e32std.h>
// Set the page size to 256 Kb to compensate for moving memory model limitation
const size_t MOVING_MEM_PAGE_SIZE = 256 * 1024;
namespace JSC {
size_t ExecutableAllocator::determinePageSize()
{
#if WTF_CPU_ARMV5_OR_LOWER
// The moving memory model (as used in ARMv5 and earlier platforms)
// on Symbian OS limits the number of chunks for each process to 16.
// To mitigate this limitation increase the pagesize to
// allocate less of larger chunks.
return MOVING_MEM_PAGE_SIZE;
#else
TInt page_size;
UserHal::PageSizeInBytes(page_size);
return page_size;
#endif
}
ExecutablePool::Allocation ExecutableAllocator::systemAlloc(size_t n)
{
RChunk* codeChunk = new RChunk();
TInt errorCode = codeChunk->CreateLocalCode(n, n);
char* allocation = reinterpret_cast<char*>(codeChunk->Base());
ExecutablePool::Allocation alloc = { allocation, n, codeChunk };
return alloc;
}
void ExecutableAllocator::systemRelease(const ExecutablePool::Allocation& alloc)
{
alloc.chunk->Close();
delete alloc.chunk;
}
#if ENABLE_ASSEMBLER_WX_EXCLUSIVE
#error "ASSEMBLER_WX_EXCLUSIVE not yet suported on this platform."
#endif
}
#endif // HAVE(ASSEMBLER)