Source code of Windows XP (NT5)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

137 lines
2.5 KiB

/*++
Copyright (C) Microsoft Corporation, 1995 - 1999
All rights reserved.
Module Name:
wow64.h
Abstract:
printui wow64 related functions.
Author:
Lazar Ivanov (LazarI) 10-Mar-2000
Revision History:
--*/
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <tchar.h>
#include "wow64.h"
#define ARRAYSIZE(x) (sizeof(x)/sizeof(x[0]))
//
// Win64 APIs, types and data structures.
//
ClientVersion
OSEnv_GetClientVer(
VOID
)
{
return(sizeof(ULONG_PTR));
}
ServerVersion
OSEnv_GetServerVer(
VOID
)
{
ULONG_PTR ul;
NTSTATUS st;
ServerVersion serverVersion;
st = NtQueryInformationProcess(NtCurrentProcess(),
ProcessWow64Information, &ul, sizeof(ul), NULL);
if( NT_SUCCESS(st) )
{
// If this call succeeds, we're on Win2000 or newer machines.
if( 0 != ul )
{
// 32-bit code running on Win64
serverVersion = THUNKVERSION;
}
else
{
// 32-bit code running on Win2000 or later 32-bit OS
serverVersion = NATIVEVERSION;
}
}
else
{
serverVersion = NATIVEVERSION;
}
return serverVersion;
}
#if 0 // debug code
BOOL
IsRunningInSPLWOW(
VOID
)
{
TCHAR szSysDir[MAX_PATH];
TCHAR szSplWOW64Name[MAX_PATH];
TCHAR szModName[MAX_PATH];
GetWindowsDirectory(szSysDir, ARRAYSIZE(szSysDir));
_tcscpy(szSplWOW64Name, szSysDir);
_tcscat(szSplWOW64Name, TEXT("\\splwow64.exe"));
GetModuleFileName(NULL, szModName, ARRAYSIZE(szModName));
return (0 == _tcsicmp(szSplWOW64Name, szModName));
}
#endif // 0
BOOL
IsRunningWOW64(
VOID
)
{
// return !IsRunningInSPLWOW();
return (RUN32BINVER == OSEnv_GetClientVer() &&
THUNKVERSION == OSEnv_GetServerVer());
}
PlatformType
GetCurrentPlatform(
VOID
)
{
if (RUN64BINVER == OSEnv_GetClientVer())
{
// this is a native 64bit process - i.e. the platform is IA64
return kPlatform_IA64;
}
else
{
// this is 32 bit process. it can be either native - i.e. the platform is i386 -
// or wow64 - i.e. the platform is again IA64.
if (THUNKVERSION == OSEnv_GetServerVer())
{
// the process is wow64 - the platform is IA64
return kPlatform_IA64;
}
else
{
// the process is native - i.e. the platform is x86
return kPlatform_x86;
}
}
}