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1 //===----------------------------------------------------------------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //
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8 // This file implements the "Exception Handling APIs"
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9 // https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
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10 //
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11 //===----------------------------------------------------------------------===//
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12
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13 // Support functions for the no-exceptions libc++ library
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14
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15 #include "cxxabi.h"
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16
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17 #include <exception> // for std::terminate
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18 #include "cxa_exception.h"
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19 #include "cxa_handlers.h"
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20
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21 namespace __cxxabiv1 {
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22
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23 extern "C" {
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24
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25 void
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26 __cxa_increment_exception_refcount(void *thrown_object) throw() {
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27 if (thrown_object != nullptr)
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28 std::terminate();
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29 }
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30
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31 void
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32 __cxa_decrement_exception_refcount(void *thrown_object) throw() {
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33 if (thrown_object != nullptr)
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34 std::terminate();
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35 }
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36
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37
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38 void *__cxa_current_primary_exception() throw() { return nullptr; }
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39
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40 void
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41 __cxa_rethrow_primary_exception(void* thrown_object) {
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42 if (thrown_object != nullptr)
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43 std::terminate();
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44 }
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45
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46 bool
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47 __cxa_uncaught_exception() throw() { return false; }
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48
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49 unsigned int
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50 __cxa_uncaught_exceptions() throw() { return 0; }
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51
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252
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52 } // extern "C"
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150
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53
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54 // provide dummy implementations for the 'no exceptions' case.
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55 uint64_t __getExceptionClass (const _Unwind_Exception*) { return 0; }
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56 void __setExceptionClass ( _Unwind_Exception*, uint64_t) {}
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57 bool __isOurExceptionClass(const _Unwind_Exception*) { return false; }
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58
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59 } // abi
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