diff options
Diffstat (limited to 'src/VBox/Runtime/common/compiler/vcc/initializers-c-cpp-vcc.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/compiler/vcc/initializers-c-cpp-vcc.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/compiler/vcc/initializers-c-cpp-vcc.cpp b/src/VBox/Runtime/common/compiler/vcc/initializers-c-cpp-vcc.cpp new file mode 100644 index 00000000..0fc451db --- /dev/null +++ b/src/VBox/Runtime/common/compiler/vcc/initializers-c-cpp-vcc.cpp @@ -0,0 +1,158 @@ +/* $Id: initializers-c-cpp-vcc.cpp $ */ +/** @file + * IPRT - Visual C++ Compiler - C & C++ Initializers and Terminators. + */ + +/* + * Copyright (C) 2022-2023 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 * +*********************************************************************************************************************************/ +#define IPRT_COMPILER_VCC_WITH_C_INIT_TERM_SECTIONS +#define IPRT_COMPILER_VCC_WITH_CPP_INIT_SECTIONS +#include "internal/compiler-vcc.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +typedef void (__cdecl *PFNVCINITTERM)(void); +typedef int (__cdecl *PFNVCINITTERMRET)(void); + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** @name Initializer arrays. + * + * The important thing here are the section names, the linker wi. + * + * @{ */ +/** Start of the C initializer array. */ +__declspec(allocate(".CRT$XIA")) PFNVCINITTERMRET g_apfnRTVccInitializers_C_Start = NULL; +/** End of the C initializer array. */ +__declspec(allocate(".CRT$XIZ")) PFNVCINITTERMRET g_apfnRTVccInitializers_C_End = NULL; + +/** Start of the C pre-terminator array. */ +__declspec(allocate(".CRT$XPA")) PFNVCINITTERM g_apfnRTVccEarlyTerminators_C_Start = NULL; +/** End of the C pre-terminator array. */ +__declspec(allocate(".CRT$XPZ")) PFNVCINITTERM g_apfnRTVccEarlyTerminators_C_End = NULL; + +/** Start of the C terminator array. */ +__declspec(allocate(".CRT$XTA")) PFNVCINITTERM g_apfnRTVccTerminators_C_Start = NULL; +/** End of the C terminator array. */ +__declspec(allocate(".CRT$XTZ")) PFNVCINITTERM g_apfnRTVccTerminators_C_End = NULL; + +/** Start of the C++ initializer array. */ +__declspec(allocate(".CRT$XCA")) PFNVCINITTERM g_apfnRTVccInitializers_Cpp_Start = NULL; +/** End of the C++ initializer array. */ +__declspec(allocate(".CRT$XCZ")) PFNVCINITTERM g_apfnRTVccInitializers_Cpp_End = NULL; + + +/* Tell the linker to merge the .CRT* sections into .rdata */ +#pragma comment(linker, "/merge:.CRT=.rdata ") +/** @} */ + + +/** + * Runs the C and C++ initializers. + * + * @returns 0 on success, non-zero return from C initalizer on failure. + */ +int rtVccInitializersRunInit(void) +{ + /* + * Run the C initializers first. + */ + for (PFNVCINITTERMRET *ppfn = &g_apfnRTVccInitializers_C_Start; + (uintptr_t)ppfn < (uintptr_t)&g_apfnRTVccInitializers_C_End; + ppfn++) + { + PFNVCINITTERMRET const pfn = *ppfn; + if (pfn) + { + int const rc = pfn(); + if (RT_LIKELY(rc == 0)) + { /* likely */ } + else + return rc; + } + } + + /* + * Run the C++ initializers. + */ + for (PFNVCINITTERM *ppfn = &g_apfnRTVccInitializers_Cpp_Start; + (uintptr_t)ppfn < (uintptr_t)&g_apfnRTVccInitializers_Cpp_End; + ppfn++) + { + PFNVCINITTERM const pfn = *ppfn; + if (pfn) + pfn(); + } + + return 0; +} + + +/** + * Runs the C terminator callbacks. + */ +void rtVccInitializersRunTerm(void) +{ + /* + * First the early terminators. + */ + for (PFNVCINITTERM *ppfn = &g_apfnRTVccEarlyTerminators_C_Start; + (uintptr_t)ppfn < (uintptr_t)&g_apfnRTVccEarlyTerminators_C_End; + ppfn++) + { + PFNVCINITTERM const pfn = *ppfn; + if (pfn) + pfn(); + } + + /* + * Then the real terminator list. + */ + for (PFNVCINITTERM *ppfn = &g_apfnRTVccTerminators_C_Start; + (uintptr_t)ppfn < (uintptr_t)&g_apfnRTVccTerminators_C_End; + ppfn++) + { + PFNVCINITTERM const pfn = *ppfn; + if (pfn) + pfn(); + } + +} + |