From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- src/VBox/Runtime/r0drv/os2/initterm-r0drv-os2.cpp | 132 ++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 src/VBox/Runtime/r0drv/os2/initterm-r0drv-os2.cpp (limited to 'src/VBox/Runtime/r0drv/os2/initterm-r0drv-os2.cpp') diff --git a/src/VBox/Runtime/r0drv/os2/initterm-r0drv-os2.cpp b/src/VBox/Runtime/r0drv/os2/initterm-r0drv-os2.cpp new file mode 100644 index 00000000..98821c29 --- /dev/null +++ b/src/VBox/Runtime/r0drv/os2/initterm-r0drv-os2.cpp @@ -0,0 +1,132 @@ +/* $Id: initterm-r0drv-os2.cpp $ */ +/** @file + * IPRT - Initialization & Termination, Ring-0 Driver, OS/2. + */ + +/* + * Contributed by knut st. osmundsen. + * + * Copyright (C) 2007-2023 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 . + * + * 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 + * -------------------------------------------------------------------- + * + * This code is based on: + * + * Copyright (c) 2007 knut st. osmundsen + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "the-os2-kernel.h" + +#include "internal/initterm.h" +#include +#include + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Pointer to the 1st DOS variable table. */ +PCDOSTABLE g_pDosTable = NULL; +/** Pointer to the 2nd DOS variable table. */ +PCDOSTABLE2 g_pDosTable2 = NULL; +/** Pointer to the global info segment. */ +PGINFOSEG g_pGIS = NULL; +/** Far 16:16 pointer to the local info segment. + * IIRC this must be converted to a flat pointer when accessed to work correctly on SMP systems. */ +RTFAR16 g_fpLIS = {0, 0}; + + +DECLHIDDEN(int) rtR0InitNative(void) +{ + /* + * Get the DOS Tables. + */ + RTFAR16 fp; + int rc = RTR0Os2DHQueryDOSVar(DHGETDOSV_DOSTABLES, 0, &fp); + AssertMsgReturn(!rc, ("rc=%d\n", rc), VERR_INTERNAL_ERROR); + g_pDosTable = (PCDOSTABLE)RTR0Os2Virt2Flat(fp); + AssertReturn(g_pDosTable, VERR_INTERNAL_ERROR); + g_pDosTable2 = (PCDOSTABLE2)((const uint8_t *)g_pDosTable + g_pDosTable->cul * sizeof(ULONG) + 1); + + /* + * Get the addresses of the two info segments. + */ + rc = RTR0Os2DHQueryDOSVar(DHGETDOSV_SYSINFOSEG, 0, &fp); + AssertMsgReturn(!rc, ("rc=%d\n", rc), VERR_INTERNAL_ERROR); + g_pGIS = (PGINFOSEG)RTR0Os2Virt2Flat(fp); + rc = RTR0Os2DHQueryDOSVar(DHGETDOSV_LOCINFOSEG, 0, &fp); + AssertMsgReturn(!rc, ("rc=%d\n", rc), VERR_INTERNAL_ERROR); + g_fpLIS = fp; + + return VINF_SUCCESS; +} + + +DECLHIDDEN(void) rtR0TermNative(void) +{ + /* nothing to do here yet. */ +} + + +/** + * Converts a 16:16 pointer to a flat pointer. + * + * @returns Flat pointer (NULL if fp is NULL). + * @param fp Far pointer to convert. + */ +RTR0DECL(void *) RTR0Os2Virt2Flat(RTFAR16 fp) +{ + return (void *)KernSelToFlat(((uint32_t)fp.sel << 16) | fp.off); +} + -- cgit v1.2.3