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11  *   http://www.apache.org/licenses/LICENSE-2.0
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16  * KIND, either express or implied.  See the License for the
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20  *************************************************************/
21 
22 
23 
24 #include "uno/mapping.h"
25 
26 #include <typeinfo>
27 #include <exception>
28 #include <cstddef>
29 
30 namespace CPPU_CURRENT_NAMESPACE
31 {
32 
33 void dummy_can_throw_anything( char const * );
34 
35 typedef unsigned _Unwind_Ptr __attribute__((__mode__(__pointer__)));
36 
37 // ----- the following structure is compatible with the one declared in libunwind's unwind.h
38 // (use forced types)
39 
40 struct _Unwind_Exception
41 {
42     uint64_t exception_class;
43     void * exception_cleanup;
44     uintptr_t private_1;
45     uintptr_t private_2;
46 };
47 
48 struct __cxa_exception
49 {
50 #if __LP64__
51     // From LLVM 10 - Added reserved member at top of struct. Who the hell does that?
52     // https://reviews.llvm.org/rG674ec1eb16678b8addc02a4b0534ab383d22fa77
53     // Sure would be nice to be able to test for CCNUMVER >= 1000000000
54     // and COM == CLANG here.
55     // void *reserved;
56     // ----- from libcxxabi/src/cxa_exception.hpp
57     // This is a new field to support C++ 0x exception_ptr.
58     // For binary compatibility it is at the start of this
59     // struct which is prepended to the object thrown in
60     // __cxa_allocate_exception.
61     size_t referenceCount;
62 #endif
63 
64     ::std::type_info *exceptionType;
65     void (*exceptionDestructor)(void *);
66 
67     ::std::unexpected_handler unexpectedHandler;
68     ::std::terminate_handler terminateHandler;
69 
70     __cxa_exception *nextException;
71 
72     int handlerCount;
73 
74     int handlerSwitchValue;
75     const unsigned char *actionRecord;
76     const unsigned char *languageSpecificData;
77     void *catchTemp;
78     void *adjustedPtr;
79 
80     _Unwind_Exception unwindHeader;
81 };
82 
83 extern "C" void *__cxa_allocate_exception(
84     std::size_t thrown_size ) throw();
85 extern "C" void __cxa_throw (
86     void *thrown_exception, std::type_info *tinfo, void (*dest) (void *) ) __attribute__((noreturn));
87 
88 struct __cxa_eh_globals
89 {
90     __cxa_exception *caughtExceptions;
91     unsigned int uncaughtExceptions;
92 };
93 extern "C" __cxa_eh_globals *__cxa_get_globals () throw();
94 
95 // -----
96 
97 // on OSX 64bit the class_type_info classes are specified
98 // in http://refspecs.linuxbase.org/cxxabi-1.86.html#rtti but
99 // these details are not generally available in a public header
100 // of most development environments. So we define them here.
101 // NOTE: https://www.hexblog.com/wp-content/uploads/2012/06/Recon-2012-Skochinsky-Compiler-Internals.pdf
102 class __class_type_info : public std::type_info
103 {
104 public:
105         explicit __class_type_info( const char* pRttiName)
106         : std::type_info( pRttiName)
107         {}
108 };
109 
110 class __si_class_type_info : public __class_type_info
111 {
112         const __class_type_info* mpBaseType;
113 public:
114         explicit __si_class_type_info( const char* pRttiName, __class_type_info* pBaseType)
115         : __class_type_info( pRttiName), mpBaseType( pBaseType)
116         {}
117 };
118 
119 //==================================================================================================
120 void raiseException(
121     uno_Any * pUnoExc, uno_Mapping * pUno2Cpp );
122 //==================================================================================================
123 void fillUnoException(
124     __cxa_exception * header, uno_Any *, uno_Mapping * pCpp2Uno );
125 }
126 
127