1 files changed, 123 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..bb83efb9
--- /dev/null
+++ b/src/VBox/Runtime/r0drv/darwin/initterm-r0drv-darwin.cpp
@@ -0,0 +1,123 @@
+/* $Id: initterm-r0drv-darwin.cpp $ */
+/** @file
+ * IPRT - Initialization & Termination, R0 Driver, Darwin.
+ */
+
+/*
+ * Copyright (C) 2006-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+
+/*********************************************************************************************************************************
+*   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. */
+lck_grp_t                  *g_pDarwinLockGroup = NULL;
+/** Pointer to the ast_pending function, if found. */
+PFNR0DARWINASTPENDING       g_pfnR0DarwinAstPending = NULL;
+/** Pointer to the cpu_interrupt function, if found. */
+PFNR0DARWINCPUINTERRUPT     g_pfnR0DarwinCpuInterrupt = NULL;
+#ifdef DEBUG
+/** Pointer to the vm_fault_external function - used once for debugging @bugref{9466}. */
+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", g_pfnR0DarwinAstPending);
+            RTR0DbgKrnlInfoQuerySymbol(hKrnlInfo, NULL, "cpu_interrupt", (void **)&g_pfnR0DarwinCpuInterrupt);
+            printf("cpu_interrupt=%p\n", g_pfnR0DarwinCpuInterrupt);
+#ifdef DEBUG
+            RTR0DbgKrnlInfoQuerySymbol(hKrnlInfo, NULL, "vm_fault_external", (void **)&g_pfnR0DarwinVmFaultExternal);
+            printf("vm_fault_external=%p\n", 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();
+}
+