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63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
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//===- c++-exception.h - C++ Specific exception Handling --------*- C++ -*-===//
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//
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// This file defines the data structures and API used by the C++ exception
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// handling runtime library.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CXX_EXCEPTION_H
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#define CXX_EXCEPTION_H
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#include "exception.h"
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#include <typeinfo>
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typedef struct llvm_cxx_exception {
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/* TypeInfo - A pointer to the C++ std::type_info object for this exception
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* class. This is required because the class may not be polymorphic.
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*/
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const std::type_info *TypeInfo;
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/* ExceptionObjectDestructor - A pointer to the function which destroys the
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* object represented by this exception. This is required because the class
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* may not be polymorphic. This may be null if there is no cleanup required.
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*/
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void (*ExceptionObjectDestructor)(void *);
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/* UnexpectedHandler - This contains a pointer to the "unexpected" handler
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* which may be registered by the user program with set_unexpected. Calls to
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* unexpected which are a result of an exception throw are supposed to use the
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* value of the handler at the time of the throw, not the currently set value.
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*/
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void *UnexpectedHandler;
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/* TerminateHandler - This contains a pointer to the "terminate" handler which
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* may be registered by the user program with set_terminate. Calls to
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* unexpected which are a result of an exception throw are supposed to use the
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* value of the handler at the time of the throw, not the currently set value.
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*/
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void *TerminateHandler;
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/* BaseException - The language independent portion of the exception state.
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* This is at the end of the record so that we can add additional members to
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* this structure without breaking binary compatibility.
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*/
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llvm_exception BaseException;
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} llvm_cxx_exception;
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extern "C" {
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void *__llvm_cxxeh_allocate_exception(unsigned NumBytes);
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void __llvm_cxxeh_free_exception(void *ObjectPtr);
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void __llvm_cxxeh_throw(void *ObjectPtr, const std::type_info *TypeInfoPtr,
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void (*DtorPtr)(void*));
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void * __llvm_cxxeh_current_uncaught_exception_isa(const std::type_info *Ty);
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void *__llvm_cxxeh_begin_catch(void);
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void __llvm_cxxeh_end_catch(void);
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void __llvm_cxxeh_rethrow(void);
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}
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#endif
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