UBUNTU: ubuntu: vbox -- update to 5.1.24-dfsg-1

[mirror_ubuntu-artful-kernel.git] / ubuntu / vbox / vboxguest / common / math / gcc / udivmoddi4.c

diff --git a/ubuntu/vbox/vboxguest/common/math/gcc/udivmoddi4.c b/ubuntu/vbox/vboxguest/common/math/gcc/udivmoddi4.c
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+++ b/ubuntu/vbox/vboxguest/common/math/gcc/udivmoddi4.c
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+/* $Id: udivmoddi4.c $ */
+/** @file
+ * IPRT - __udivmoddi4 implementation
+ */
+
+/*
+ * Copyright (C) 2006-2016 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.
+ */
+
+#include <iprt/stdint.h>
+#include <iprt/uint64.h>
+
+uint64_t __udivmoddi4(uint64_t u64A, uint64_t u64B, uint64_t *pu64R);
+
+/**
+ * __udivmoddi4() implementation to satisfy external references from 32-bit
+ * code generated by gcc-7 or later.
+ *
+ * @param   u64A        The divident value.
+ * @param   u64B        The divisor value.
+ * @param   pu64R       A pointer to the reminder. May be NULL.
+ * @returns u64A / u64B
+ */
+uint64_t __udivmoddi4(uint64_t u64A, uint64_t u64B, uint64_t *pu64R)
+{
+    RTUINT64U Divident;
+    RTUINT64U Divisor;
+    RTUINT64U Quotient;
+    RTUINT64U Reminder;
+    Divident.u = u64A;
+    Divisor.u  = u64B;
+    RTUInt64DivRem(&Quotient, &Reminder, &Divident, &Divisor);
+    if (pu64R)
+        *pu64R = Reminder.u;
+    return Quotient.u;
+}