Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

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

1 files changed, 281 insertions, 0 deletions

diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.cxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.cxx
new file mode 100644
index 000000000..2e11b6eb4
--- /dev/null
+++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.cxx
@@ -0,0 +1,281 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+#include <memory>
+#include <typeinfo>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+
+#include <dlfcn.h>
+
+#include <osl/mutex.hxx>
+#include <rtl/instance.hxx>
+#include <rtl/strbuf.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/log.hxx>
+#include <typelib/typedescription.h>
+
+#include "rtti.hxx"
+#include "share.hxx"
+
+namespace {
+
+class Generated {
+public:
+    virtual ~Generated() {};
+
+    virtual std::type_info * get() const = 0;
+};
+
+class GeneratedPlain: public Generated {
+public:
+    GeneratedPlain(std::unique_ptr<std::type_info> && info): info_(std::move(info)) {};
+
+    std::type_info * get() const override { return info_.get(); }
+
+private:
+    std::unique_ptr<std::type_info> info_;
+};
+
+class GeneratedPad: public Generated {
+public:
+public:
+    GeneratedPad(std::unique_ptr<char[]> && pad): pad_(std::move(pad)) {};
+
+    ~GeneratedPad() override { get()->~type_info(); }
+
+    std::type_info * get() const override final
+    { return reinterpret_cast<std::type_info *>(pad_.get()); }
+
+private:
+    std::unique_ptr<char[]> pad_;
+};
+
+class RTTI
+{
+    typedef std::unordered_map< OUString, std::type_info * > t_rtti_map;
+
+    osl::Mutex m_mutex;
+    t_rtti_map m_rttis;
+    std::vector<OString> m_rttiNames;
+    std::unordered_map<OUString, std::unique_ptr<Generated>> m_generatedRttis;
+
+#if !defined ANDROID
+    void * m_hApp;
+#endif
+
+public:
+    RTTI();
+    ~RTTI();
+
+    std::type_info * getRTTI(typelib_TypeDescription const &);
+};
+
+RTTI::RTTI()
+#if !defined ANDROID
+    : m_hApp( dlopen( nullptr, RTLD_LAZY ) )
+#endif
+{
+}
+
+RTTI::~RTTI()
+{
+#if !defined ANDROID
+    dlclose( m_hApp );
+#endif
+}
+
+std::type_info * RTTI::getRTTI(typelib_TypeDescription const & pTypeDescr)
+{
+    std::type_info * rtti;
+
+    OUString const & unoName = OUString::unacquired(&pTypeDescr.pTypeName);
+
+    osl::MutexGuard guard( m_mutex );
+    t_rtti_map::const_iterator iFind( m_rttis.find( unoName ) );
+    if (iFind == m_rttis.end())
+    {
+        // RTTI symbol
+        OStringBuffer buf( 64 );
+        buf.append( "_ZTIN" );
+        sal_Int32 index = 0;
+        do
+        {
+            OUString token( unoName.getToken( 0, '.', index ) );
+            buf.append( token.getLength() );
+            OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) );
+            buf.append( c_token );
+        }
+        while (index >= 0);
+        buf.append( 'E' );
+
+        OString symName( buf.makeStringAndClear() );
+#if !defined ANDROID
+        rtti = static_cast<std::type_info *>(dlsym( m_hApp, symName.getStr() ));
+#else
+        rtti = static_cast<std::type_info *>(dlsym( RTLD_DEFAULT, symName.getStr() ));
+#endif
+
+        if (rtti)
+        {
+            std::pair< t_rtti_map::iterator, bool > insertion (
+                m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
+            SAL_WARN_IF( !insertion.second, "bridges", "key " << unoName << " already in rtti map" );
+        }
+        else
+        {
+            // try to lookup the symbol in the generated rtti map
+            auto iFind2( m_generatedRttis.find( unoName ) );
+            if (iFind2 == m_generatedRttis.end())
+            {
+                // we must generate it !
+                // symbol and rtti-name is nearly identical,
+                // the symbol is prefixed with _ZTI
+                char const * rttiName = symName.getStr() +4;
+#if OSL_DEBUG_LEVEL > 1
+                fprintf( stderr,"generated rtti for %s\n", rttiName );
+#endif
+                std::unique_ptr<Generated> newRtti;
+                switch (pTypeDescr.eTypeClass) {
+                case typelib_TypeClass_EXCEPTION:
+                    {
+                        typelib_CompoundTypeDescription const & ctd
+                            = reinterpret_cast<
+                                typelib_CompoundTypeDescription const &>(
+                                    pTypeDescr);
+                        if (ctd.pBaseTypeDescription)
+                        {
+                            // ensure availability of base
+                            std::type_info * base_rtti = getRTTI(
+                                ctd.pBaseTypeDescription->aBase);
+                            m_rttiNames.emplace_back(OString(rttiName));
+                            std::unique_ptr<std::type_info> info(
+                                new __cxxabiv1::__si_class_type_info(
+                                    m_rttiNames.back().getStr(), static_cast<__cxxabiv1::__class_type_info *>(base_rtti) ));
+                            newRtti.reset(new GeneratedPlain(std::move(info)));
+                        }
+                        else
+                        {
+                            // this class has no base class
+                            m_rttiNames.emplace_back(OString(rttiName));
+                            std::unique_ptr<std::type_info> info(
+                                new __cxxabiv1::__class_type_info(m_rttiNames.back().getStr()));
+                            newRtti.reset(new GeneratedPlain(std::move(info)));
+                        }
+                        break;
+                    }
+                case typelib_TypeClass_INTERFACE:
+                    {
+                        typelib_InterfaceTypeDescription const & itd
+                            = reinterpret_cast<
+                                typelib_InterfaceTypeDescription const &>(
+                                    pTypeDescr);
+                        std::vector<std::type_info *> bases;
+                        for (sal_Int32 i = 0; i != itd.nBaseTypes; ++i) {
+                            bases.push_back(getRTTI(itd.ppBaseTypes[i]->aBase));
+                        }
+                        switch (itd.nBaseTypes) {
+                        case 0:
+                            {
+                                m_rttiNames.emplace_back(OString(rttiName));
+                                std::unique_ptr<std::type_info> info(
+                                    new __cxxabiv1::__class_type_info(
+                                        m_rttiNames.back().getStr()));
+                                newRtti.reset(new GeneratedPlain(std::move(info)));
+                                break;
+                            }
+                        case 1:
+                            {
+                                m_rttiNames.emplace_back(OString(rttiName));
+                                std::unique_ptr<std::type_info> info(
+                                    new __cxxabiv1::__si_class_type_info(
+                                        m_rttiNames.back().getStr(),
+                                        static_cast<
+                                            __cxxabiv1::__class_type_info *>(
+                                                bases[0])));
+                                newRtti.reset(new GeneratedPlain(std::move(info)));
+                                break;
+                            }
+                        default:
+                            {
+                                m_rttiNames.emplace_back(OString(rttiName));
+                                auto pad = std::make_unique<char[]>(
+                                    sizeof (__cxxabiv1::__vmi_class_type_info)
+                                    + ((itd.nBaseTypes - 1)
+                                       * sizeof (
+                                           __cxxabiv1::__base_class_type_info)));
+                                __cxxabiv1::__vmi_class_type_info * info
+                                    = new(pad.get())
+                                        __cxxabiv1::__vmi_class_type_info(
+                                            m_rttiNames.back().getStr(),
+                                            __cxxabiv1::__vmi_class_type_info::__flags_unknown_mask);
+                                info->__base_count = itd.nBaseTypes;
+                                for (sal_Int32 i = 0; i != itd.nBaseTypes; ++i)
+                                {
+                                    info->__base_info[i].__base_type
+                                        = static_cast<
+                                            __cxxabiv1::__class_type_info *>(
+                                                bases[i]);
+                                    info->__base_info[i].__offset_flags
+                                        = (__cxxabiv1::__base_class_type_info::__public_mask
+                                           | ((8 * i) << __cxxabiv1::__base_class_type_info::__offset_shift));
+                                }
+                                newRtti.reset(new GeneratedPad(std::move(pad)));
+                                break;
+                            }
+                        }
+                        break;
+                    }
+                default:
+                    assert(false); // cannot happen
+                }
+                rtti = newRtti->get();
+                if (newRtti) {
+                    auto insertion (
+                        m_generatedRttis.emplace(unoName, std::move(newRtti)));
+                    SAL_WARN_IF( !insertion.second, "bridges", "key " << unoName << " already in generated rtti map" );
+                }
+            }
+            else // taking already generated rtti
+            {
+                rtti = iFind2->second->get();
+            }
+        }
+    }
+    else
+    {
+        rtti = iFind->second;
+    }
+
+    return rtti;
+}
+
+struct theRttiFactory: public rtl::Static<RTTI, theRttiFactory> {};
+
+}
+
+std::type_info * x86_64::getRtti(typelib_TypeDescription const & type) {
+    return theRttiFactory::get().getRTTI(type);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */