1 /* except-gcc.h -*-C++-*-
3 *************************************************************************
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48 **************************************************************************/
53 * @brief ABI for gcc exception handling.
56 * The code below is generally copied from the Intel Itanium ABI (Intel
60 #ifndef INCLUDED_EXCEPT_GCC_DOT_H
61 #define INCLUDED_EXCEPT_GCC_DOT_H
64 # error except-gcc.h should be used in C++ code only.
67 #include <cilk/common.h>
71 struct __cxa_exception
;
73 __CILKRTS_BEGIN_EXTERN_C
75 /** Unwind reason code (Itanium ABI 6.1.2.1) */
76 typedef enum _Unwind_Reason_Code
{
78 _URC_FOREIGN_EXCEPTION_CAUGHT
= 1,
79 _URC_FATAL_PHASE2_ERROR
= 2,
80 _URC_FATAL_PHASE1_ERROR
= 3,
82 _URC_END_OF_STACK
= 5,
83 _URC_HANDLER_FOUND
= 6,
84 _URC_INSTALL_CONTEXT
= 7,
85 _URC_CONTINUE_UNWIND
= 8
86 } _Unwind_Reason_Code
;
88 typedef struct _Unwind_Exception _Unwind_Exception
;
90 /** Exception cleanup function pointer (Itanium ABI 6.1.2.2) */
91 typedef void (*_Unwind_Exception_Cleanup_Fn
)(_Unwind_Reason_Code reason
,
92 _Unwind_Exception
*exc
);
95 * @brief Exception undwinding information
97 * This is copied from the Intel Itanium ABI except that the
98 * private fields are declared unsigned long for binary
99 * compatibility with gcc/g++ on 32 bit machines.
101 struct _Unwind_Exception
103 uint64_t exception_class
;
104 _Unwind_Exception_Cleanup_Fn exception_cleanup
;
105 unsigned long private_1
;
106 unsigned long private_2
;
109 /** Throw or rethrow an exception */
111 _Unwind_RaiseException(_Unwind_Exception
*exception_object
);
113 /** Resume an exception other than by rethrowing it. */
114 void _Unwind_Resume(_Unwind_Exception
*exception_object
);
116 /** Delete an exception object */
117 void _Unwind_DeleteException(_Unwind_Exception
*exception_object
);
121 * The following declarations are from
123 * http://www.codesourcery.com/public/cxx-abi/abi-eh.html#cxx-abi
126 struct __cxa_exception
{
127 std::type_info
* exceptionType
;
128 void (*exceptionDestructor
)(void *);
129 std::unexpected_handler unexpectedHandler
;
130 std::terminate_handler terminateHandler
;
131 __cxa_exception
* nextException
;
134 int handlerSwitchValue
;
135 const char * actionRecord
;
136 const char * languageSpecificData
;
140 _Unwind_Exception unwindHeader
;
143 static inline __cxa_exception
*to_cxx(_Unwind_Exception
*e
)
145 return ((__cxa_exception
*)(e
+1)) - 1;
148 typedef struct __cxa_eh_globals
{
149 __cxa_exception
*caughtExceptions
;
150 unsigned int uncaughtExceptions
;
153 __cxa_eh_globals
*__cxa_get_globals(void) throw();
155 __CILKRTS_END_EXTERN_C
157 #endif // ! defined(INCLUDED_EXCEPT_GCC_DOT_H)