The gcc3_linux_aarch64 bridge needs to call __cxa_current_exception_type, too

...or else mapException would extract garbage from the fake
exception->exceptionType std::type_info* when catching via
cppu::getCaughtException the rethrown exception thrown via
std::rethrow_exception in Test::testgetCaughtException in
cppuhelper/qa/misc/test_misc.cxx.

6ddecf61 "fillUnoException not working on
std::rethrow_exception exceptions" had adapted the other relevant
bridges/source/cpp_uno/gcc3_*/ cases but missed the gcc3_linux_aarch64 one.

Change-Id: I5a2afb11ad4abf851169bd3fd8ae647cc81c2fcd
Reviewed-on: https://gerrit.libreoffice.org/67542
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
(cherry picked from commit 0c314c90)
Reviewed-on: https://gerrit.libreoffice.org/67548Tested-by: Rene Engelhard <rene@debian.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

bridges/source/cpp_uno/gcc3_linux_aarch64/abi.cxx

@@ -224,10 +224,11 @@ StructKind getStructKind(typelib_CompoundTypeDescription const * type) {
 namespace abi_aarch64 {
 
 void mapException(
-    __cxa_exception * exception, uno_Any * any, uno_Mapping * mapping)
+    __cxa_exception * exception, std::type_info const * type, uno_Any * any, uno_Mapping * mapping)
 {
     assert(exception != 0);
-    OUString unoName(toUnoName(exception->exceptionType->name()));
+    assert(type != nullptr);
+    OUString unoName(toUnoName(type->name()));
     typelib_TypeDescription * td = 0;
     typelib_typedescription_getByName(&td, unoName.pData);
     if (td == 0) {

bridges/source/cpp_uno/gcc3_linux_aarch64/abi.hxx

@@ -70,7 +70,7 @@ struct __cxa_eh_globals
 };
 
 void mapException(
-    __cxa_exception * exception, uno_Any * any, uno_Mapping * mapping);
+    __cxa_exception * exception, std::type_info const * type, uno_Any * any, uno_Mapping * mapping);
 
 void raiseException(uno_Any * any, uno_Mapping * mapping);
 

bridges/source/cpp_uno/gcc3_linux_aarch64/uno2cpp.cxx

@@ -192,7 +192,8 @@ void call(
         abi_aarch64::mapException(
             reinterpret_cast<abi_aarch64::__cxa_eh_globals *>(
                 __cxxabiv1::__cxa_get_globals())->caughtExceptions,
-            *exception, proxy->getBridge()->getCpp2Uno());
+            __cxxabiv1::__cxa_current_exception_type(), *exception,
+            proxy->getBridge()->getCpp2Uno());
         for (sal_Int32 i = 0; i != count; ++i) {
             if (cppArgs[i] != 0) {
                 uno_destructData(