diff options
Diffstat (limited to 'src/VBox/Runtime/r3/win/nocrt-startup-dll-win.cpp')
-rw-r--r-- | src/VBox/Runtime/r3/win/nocrt-startup-dll-win.cpp | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/win/nocrt-startup-dll-win.cpp b/src/VBox/Runtime/r3/win/nocrt-startup-dll-win.cpp new file mode 100644 index 00000000..77bf0951 --- /dev/null +++ b/src/VBox/Runtime/r3/win/nocrt-startup-dll-win.cpp @@ -0,0 +1,162 @@ +/* $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); + } +} + |