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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /javaunohelper/source/preload.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'javaunohelper/source/preload.cxx')
-rw-r--r--javaunohelper/source/preload.cxx130
1 files changed, 130 insertions, 0 deletions
diff --git a/javaunohelper/source/preload.cxx b/javaunohelper/source/preload.cxx
new file mode 100644
index 000000000..f73b44b34
--- /dev/null
+++ b/javaunohelper/source/preload.cxx
@@ -0,0 +1,130 @@
+/* -*- 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>
+
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-attributes"
+#endif
+#include <jni.h>
+#if defined __clang__
+#pragma clang diagnostic pop
+#endif
+
+#include <rtl/ustring.hxx>
+#include <osl/module.hxx>
+
+#include "juhx-export-types.hxx"
+
+// In retrospect, the reason to create a juh wrapper around the juhx library was
+// probably because java.lang.System.loadLibrary uses RTLD_LOCAL, so uniqueness
+// of GCC RTTI symbols needed for exception handling would not be guaranteed.
+
+#if ! defined SAL_DLLPREFIX
+#define SAL_DLLPREFIX ""
+#endif
+
+
+extern "C"
+{
+
+static javaunohelper::detail::Func_writeInfo * s_writeInfo;
+static javaunohelper::detail::Func_getFactory * s_getFactory;
+static javaunohelper::detail::Func_bootstrap * s_bootstrap;
+static bool s_inited = false;
+
+extern "C" { static void thisModule() {} }
+
+
+static bool inited_juhx( JNIEnv * jni_env )
+{
+ if (s_inited)
+ return true;
+ osl::Module aModule;
+ if (!aModule.loadRelative(&thisModule, SAL_DLLPREFIX "juhx" SAL_DLLEXTENSION, SAL_LOADMODULE_LAZY | SAL_LOADMODULE_GLOBAL))
+ {
+ jclass c = jni_env->FindClass( "java/lang/RuntimeException" );
+ jni_env->ThrowNew(
+ c, "error loading " SAL_DLLPREFIX "juhx" SAL_DLLEXTENSION "!" );
+ return false;
+ }
+ else
+ {
+ OUString symbol =
+ "Java_com_sun_star_comp_helper_SharedLibraryLoader_component_1writeInfo";
+ s_writeInfo = reinterpret_cast<javaunohelper::detail::Func_writeInfo *>(aModule.getFunctionSymbol(symbol));
+ symbol =
+ "Java_com_sun_star_comp_helper_SharedLibraryLoader_component_1getFactory";
+ s_getFactory = reinterpret_cast<javaunohelper::detail::Func_getFactory *>(aModule.getFunctionSymbol(symbol));
+ symbol =
+ "Java_com_sun_star_comp_helper_Bootstrap_cppuhelper_1bootstrap";
+ s_bootstrap =
+ reinterpret_cast<javaunohelper::detail::Func_bootstrap *>(aModule.getFunctionSymbol(symbol));
+
+ if (nullptr == s_writeInfo ||
+ nullptr == s_getFactory ||
+ nullptr == s_bootstrap)
+ {
+ jclass c = jni_env->FindClass( "java/lang/RuntimeException" );
+ jni_env->ThrowNew(
+ c, "error resolving symbols of " SAL_DLLPREFIX "juhx" SAL_DLLEXTENSION "!" );
+ return false;
+ }
+ aModule.release();
+ }
+ s_inited = true;
+ return true;
+}
+
+
+SAL_DLLPUBLIC_EXPORT jboolean JNICALL
+Java_com_sun_star_comp_helper_SharedLibraryLoader_component_1writeInfo(
+ JNIEnv * pJEnv, jclass jClass, jstring jLibName, jobject jSMgr,
+ jobject jRegKey, jobject loader )
+{
+ if (inited_juhx( pJEnv ))
+ return (*s_writeInfo)(
+ pJEnv, jClass, jLibName, jSMgr, jRegKey, loader );
+ return JNI_FALSE;
+}
+
+SAL_DLLPUBLIC_EXPORT jobject JNICALL
+Java_com_sun_star_comp_helper_SharedLibraryLoader_component_1getFactory(
+ JNIEnv * pJEnv, jclass jClass, jstring jLibName, jstring jImplName,
+ jobject jSMgr, jobject jRegKey, jobject loader )
+{
+ if (inited_juhx( pJEnv ))
+ return (*s_getFactory)(
+ pJEnv, jClass, jLibName, jImplName, jSMgr, jRegKey, loader );
+ return nullptr;
+}
+
+SAL_DLLPUBLIC_EXPORT jobject JNICALL
+Java_com_sun_star_comp_helper_Bootstrap_cppuhelper_1bootstrap(
+ JNIEnv * jni_env, jclass jClass, jstring juno_rc, jobjectArray jpairs,
+ jobject loader )
+{
+ if (inited_juhx( jni_env ))
+ return (*s_bootstrap)( jni_env, jClass, juno_rc, jpairs, loader );
+ return nullptr;
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */