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