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/* $Id: nocrt-startup-dll-win.cpp $ */
/** @file
* IPRT - No-CRT - Windows EXE startup code.
*
* @note Does not run static constructors and destructors!
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "internal/iprt.h"
#include "internal/process.h"
#include <iprt/nt/nt-and-windows.h>
#include <iprt/getopt.h>
#include <iprt/message.h>
#include <iprt/path.h>
#include <iprt/string.h>
#include <iprt/utf16.h>
#ifdef IPRT_NO_CRT
# include <iprt/asm.h>
# include <iprt/nocrt/stdlib.h>
#endif
#include "internal/compiler-vcc.h"
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static volatile int32_t g_cAttached = 0;
/*********************************************************************************************************************************
* Internal Functions *
*********************************************************************************************************************************/
extern "C" BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID pvReserved);
DECL_NO_INLINE(static, BOOL) rtVccDllMainForward(HINSTANCE hInstance, DWORD dwReason, LPVOID pvReserved)
{
return DllMain(hInstance, dwReason, pvReserved);
}
DECL_NO_INLINE(static, BOOL) rtVccDllMainProcessAttach(HINSTANCE hInstance, LPVOID pvReserved)
{
/*
* Initialize the CRT the first time thru.
*/
if (g_cAttached == 0)
{
rtVccWinInitProcExecPath();
int rc = rtVccInitializersRunInit();
if (RT_FAILURE(rc))
return FALSE;
}
g_cAttached++;
/*
* Call the DllMain function.
*/
BOOL fRet = rtVccDllMainForward(hInstance, DLL_PROCESS_ATTACH, pvReserved);
/*
* On failure, we call the DllMain function again, decrement the init counter
* and probably run termination callbacks.
*/
if (!fRet)
{
rtVccDllMainForward(hInstance, DLL_PROCESS_DETACH, pvReserved);
if (--g_cAttached == 0)
{
rtVccTermRunAtExit();
rtVccInitializersRunTerm();
}
}
return fRet;
}
DECL_NO_INLINE(static, BOOL) rtVccDllMainProcessDetach(HINSTANCE hInstance, LPVOID pvReserved)
{
/*
* Make sure there isn't an imbalance before calling DllMain and shutting
* down our own internals.
*/
if (g_cAttached <= 0)
return FALSE;
/*
* Call DllMain.
*/
BOOL fRet = rtVccDllMainForward(hInstance, DLL_PROCESS_DETACH, pvReserved);
/*
* Work g_cAttached and probably do uninitialization. We'll do this regardless
* of what DllMain returned.
*/
if (--g_cAttached == 0)
{
rtVccTermRunAtExit();
rtVccInitializersRunTerm();
}
return fRet;
}
extern "C" BOOL WINAPI _DllMainCRTStartup(HINSTANCE hInstance, DWORD dwReason, LPVOID pvReserved)
{
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
#ifdef RT_ARCH_X86
rtVccWinInitBssOnNt3((PVOID)hInstance);
#endif
rtVccInitSecurityCookie(); /* This function must be minimal because of this! */
return rtVccDllMainProcessAttach(hInstance, pvReserved);
case DLL_PROCESS_DETACH:
return rtVccDllMainProcessDetach(hInstance, pvReserved);
default:
return rtVccDllMainForward(hInstance, dwReason, pvReserved);
}
}
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