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Diffstat (limited to 'lib/System/Win32/Memory.cpp')
-rw-r--r-- | lib/System/Win32/Memory.cpp | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/lib/System/Win32/Memory.cpp b/lib/System/Win32/Memory.cpp deleted file mode 100644 index f7b05abe03..0000000000 --- a/lib/System/Win32/Memory.cpp +++ /dev/null @@ -1,53 +0,0 @@ -//===- Win32/Memory.cpp - Win32 Memory Implementation -----------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file was developed by Jeff Cohen and is distributed under the -// University of Illinois Open Source License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file provides the Win32 specific implementation of various Memory -// management utilities -// -//===----------------------------------------------------------------------===// - -#include "Win32.h" -#include "llvm/System/Process.h" - -namespace llvm { -using namespace sys; - -//===----------------------------------------------------------------------===// -//=== WARNING: Implementation here must contain only Win32 specific code -//=== and must not be UNIX code -//===----------------------------------------------------------------------===// - -MemoryBlock Memory::AllocateRWX(unsigned NumBytes) { - if (NumBytes == 0) return MemoryBlock(); - - static const long pageSize = Process::GetPageSize(); - unsigned NumPages = (NumBytes+pageSize-1)/pageSize; - - void *pa = VirtualAlloc(NULL, NumPages*pageSize, MEM_COMMIT, - PAGE_EXECUTE_READWRITE); - if (pa == NULL) { - ThrowError("Can't allocate RWX Memory: "); - } - - MemoryBlock result; - result.Address = pa; - result.Size = NumPages*pageSize; - return result; -} - -void Memory::ReleaseRWX(MemoryBlock& M) { - if (M.Address == 0 || M.Size == 0) return; - if (!VirtualFree(M.Address, 0, MEM_RELEASE)) { - ThrowError("Can't release RWX Memory: "); - } -} - -} - -// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab |