mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
437b079a29
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16359 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
//===- Win32/Process.cpp - Win32 Process 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 the Process class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Win32.h"
|
|
#include "llvm/System/Process.h"
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
//=== WARNING: Implementation here must contain only Win32 specific code
|
|
//=== and must not be UNIX code
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
namespace llvm {
|
|
using namespace sys;
|
|
|
|
// This function retrieves the page size using GetSystemInfo and is present
|
|
// solely so it can be called once in Process::GetPageSize to initialize the
|
|
// static variable PageSize.
|
|
inline unsigned GetPageSizeOnce() {
|
|
// NOTE: A 32-bit application running under WOW64 is supposed to use
|
|
// GetNativeSystemInfo. However, this interface is not present prior
|
|
// to Windows XP so to use it requires dynamic linking. It is not clear
|
|
// how this affects the reported page size, if at all. One could argue
|
|
// that LLVM ought to run as 64-bits on a 64-bit system, anyway.
|
|
SYSTEM_INFO info;
|
|
GetSystemInfo(&info);
|
|
return static_cast<unsigned>(info.dwPageSize);
|
|
}
|
|
|
|
unsigned
|
|
Process::GetPageSize() {
|
|
static const unsigned PageSize = GetPageSizeOnce();
|
|
return PageSize;
|
|
}
|
|
|
|
}
|
|
// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
|