Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 133 insertions, 0 deletions

diff --git a/src/VBox/Runtime/r0drv/darwin/initterm-r0drv-darwin.cpp b/src/VBox/Runtime/r0drv/darwin/initterm-r0drv-darwin.cpp
new file mode 100644
index 00000000..41642f9a
--- /dev/null
+++ b/src/VBox/Runtime/r0drv/darwin/initterm-r0drv-darwin.cpp
@@ -0,0 +1,133 @@
+/* $Id: initterm-r0drv-darwin.cpp $ */
+/** @file
+ * IPRT - Initialization & Termination, R0 Driver, Darwin.
+ */
+
+/*
+ * Copyright (C) 2006-2022 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 "the-darwin-kernel.h"
+#include "internal/iprt.h"
+
+#include <iprt/errcore.h>
+#include <iprt/assert.h>
+#include <iprt/dbg.h>
+#include "internal/initterm.h"
+
+
+
+/*********************************************************************************************************************************
+*   Global Variables                                                                                                             *
+*********************************************************************************************************************************/
+/** Pointer to the lock group used by IPRT. */
+DECL_HIDDEN_DATA(lck_grp_t *)                   g_pDarwinLockGroup = NULL;
+/** Pointer to the ast_pending function, if found. */
+DECL_HIDDEN_DATA(PFNR0DARWINASTPENDING)         g_pfnR0DarwinAstPending = NULL;
+/** Pointer to the cpu_interrupt function, if found. */
+DECL_HIDDEN_DATA(PFNR0DARWINCPUINTERRUPT)       g_pfnR0DarwinCpuInterrupt = NULL;
+#ifdef DEBUG
+/** Pointer to the vm_fault_external function - used once for debugging @bugref{9466}. */
+DECL_HIDDEN_DATA(PFNR0DARWINVMFAULTEXTERNAL)    g_pfnR0DarwinVmFaultExternal = NULL;
+#endif
+
+
+DECLHIDDEN(int) rtR0InitNative(void)
+{
+    IPRT_DARWIN_SAVE_EFL_AC();
+
+    /*
+     * Create the lock group.
+     */
+    g_pDarwinLockGroup = lck_grp_alloc_init("IPRT", LCK_GRP_ATTR_NULL);
+    AssertReturn(g_pDarwinLockGroup, VERR_NO_MEMORY);
+
+    /*
+     * Initialize the preemption hacks.
+     */
+    int rc = rtThreadPreemptDarwinInit();
+    if (RT_SUCCESS(rc))
+    {
+        /*
+         * Try resolve kernel symbols we need but apple don't wish to give us.
+         */
+        RTDBGKRNLINFO hKrnlInfo;
+        rc = RTR0DbgKrnlInfoOpen(&hKrnlInfo, 0 /*fFlags*/);
+        if (RT_SUCCESS(rc))
+        {
+            RTR0DbgKrnlInfoQuerySymbol(hKrnlInfo, NULL, "ast_pending",   (void **)&g_pfnR0DarwinAstPending);
+            printf("ast_pending=%p\n", (void *)(uintptr_t)g_pfnR0DarwinAstPending);
+            RTR0DbgKrnlInfoQuerySymbol(hKrnlInfo, NULL, "cpu_interrupt", (void **)&g_pfnR0DarwinCpuInterrupt);
+            printf("cpu_interrupt=%p\n", (void *)(uintptr_t)g_pfnR0DarwinCpuInterrupt);
+#ifdef DEBUG
+            RTR0DbgKrnlInfoQuerySymbol(hKrnlInfo, NULL, "vm_fault_external", (void **)&g_pfnR0DarwinVmFaultExternal);
+            printf("vm_fault_external=%p\n", (void *)(uintptr_t)g_pfnR0DarwinVmFaultExternal);
+#endif
+            RTR0DbgKrnlInfoRelease(hKrnlInfo);
+        }
+        if (RT_FAILURE(rc))
+        {
+            printf("rtR0InitNative: warning! failed to resolve special kernel symbols\n");
+            rc = VINF_SUCCESS;
+        }
+    }
+    if (RT_FAILURE(rc))
+        rtR0TermNative();
+
+    IPRT_DARWIN_RESTORE_EFL_AC();
+    return rc;
+}
+
+
+DECLHIDDEN(void) rtR0TermNative(void)
+{
+    IPRT_DARWIN_SAVE_EFL_AC();
+
+    /*
+     * Preemption hacks before the lock group.
+     */
+    rtThreadPreemptDarwinTerm();
+
+    /*
+     * Free the lock group.
+     */
+    if (g_pDarwinLockGroup)
+    {
+        lck_grp_free(g_pDarwinLockGroup);
+        g_pDarwinLockGroup = NULL;
+    }
+
+    IPRT_DARWIN_RESTORE_EFL_AC();
+}
+