Adding upstream version 6.1.22-dfsg.upstream/6.1.22-dfsgupstream

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

1 files changed, 53 insertions, 0 deletions

diff --git a/src/VBox/Runtime/common/string/memcpy_alias.c b/src/VBox/Runtime/common/string/memcpy_alias.c
new file mode 100644
index 00000000..d752401f
--- /dev/null
+++ b/src/VBox/Runtime/common/string/memcpy_alias.c
@@ -0,0 +1,53 @@
+/* $Id: memcpy_alias.c $ */
+/** @file
+ * IPRT - No-CRT memcpy() alias for gcc.
+ */
+
+/*
+ * 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 <iprt/nocrt/string.h>
+#undef memcpy
+
+#if defined(RT_OS_DARWIN) || defined(RT_OS_WINDOWS)
+# ifndef __MINGW32__
+#  pragma weak memcpy
+# endif
+
+/* No alias support here (yet in the ming case). */
+extern void *(memcpy)(void *pvDst, const void *pvSrc, size_t cb)
+{
+    return RT_NOCRT(memcpy)(pvDst, pvSrc, cb);
+}
+
+#elif __GNUC__ >= 4
+/* create a weak alias. */
+__asm__(".weak memcpy\t\n"
+        " .set memcpy," RT_NOCRT_STR(memcpy) "\t\n");
+#else
+/* create a weak alias. */
+extern __typeof(RT_NOCRT(memcpy)) memcpy __attribute__((weak, alias(RT_NOCRT_STR(memcpy))));
+#endif
+