WIN bridges: unify exception handling

This is almost just refactoring, but with classes like type_info_
and __type_info, just following the code became tendious. I tried
to come up with better names... and in the end included some minor
code changes described below.

This patch moves the "common" code for MSVC exception handling
into msvc_shared/except.cxx. Still it contains a few small ifdefs,
so it doesn't feel like clean separation, but a lot of duplicate
code is dropped this way.

The "major" code change for amd64 is the drop of the duplicate
static RTTInfo object originally used by mscx_getRTTI and
mscx_getRTTI_len, by merging of both functions into the single,
new get() function to use a single std::find call.

Change-Id: Ib07d40e2794cde79156be3324c80ccf21a6aa8ed
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/102864
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

1 files changed, 59 insertions, 0 deletions

diff --git a/bridges/inc/msvc/amd64.hxx b/bridges/inc/msvc/amd64.hxx
new file mode 100644
index 000000000000..fb095446b097
--- /dev/null
+++ b/bridges/inc/msvc/amd64.hxx
@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <msvc/except.hxx>
+
+#pragma pack(push, 8)
+
+struct ExceptionType final
+{
+    sal_Int32 _n0; // flags
+    sal_uInt32 _pTypeInfo; // typeinfo
+    sal_Int32 _n1, _n2, _n3; // thiscast
+    sal_Int32 _n4; // object_size
+    sal_uInt32 _pCopyCtor; // copyctor
+    ExceptionTypeInfo exc_type_info;
+
+    explicit ExceptionType(unsigned char* pCode, sal_uInt64 pCodeBase,
+                           typelib_TypeDescription* pTD) throw();
+
+    ExceptionType(const ExceptionType&) = delete;
+    ExceptionType& operator=(const ExceptionType&) = delete;
+};
+
+struct RaiseInfo final
+{
+    sal_Int32 _n0;
+    sal_uInt32 _pDtor;
+    sal_Int32 _n2;
+    sal_uInt32 _types;
+
+    // Additional fields
+    typelib_TypeDescription* _pTD;
+    unsigned char* _code;
+    sal_uInt64 _codeBase;
+
+    explicit RaiseInfo(typelib_TypeDescription* pTD) throw();
+};
+
+#pragma pack(pop)
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */