| // Copyright 2020 The Crashpad Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef CRASHPAD_UTIL_IOS_EXCEPTION_PROCESSOR_H_ |
| #define CRASHPAD_UTIL_IOS_EXCEPTION_PROCESSOR_H_ |
| |
| namespace crashpad { |
| |
| //! \brief Installs the Objective-C exception preprocessor. |
| //! |
| //! When code raises an Objective-C exception, unwind the stack looking for |
| //! any exception handlers. If an exception handler is encountered, test to |
| //! see if it is a function known to be a catch-and-rethrow 'sinkhole' exception |
| //! handler. Various routines in UIKit do this, and they obscure the |
| //! crashing stack, since the original throw location is no longer present |
| //! on the stack (just the re-throw) when Crashpad captures the crash |
| //! report. In the case of sinkholes, trigger an immediate exception to |
| //! capture the original stack. |
| //! |
| //! This should be installed at the same time the CrashpadClient installs the |
| //! signal handler. It should only be installed once. |
| void InstallObjcExceptionPreprocessor(); |
| |
| } // namespace crashpad |
| |
| #endif // CRASHPAD_UTIL_IOS_EXCEPTION_PROCESSOR_H_ |