Armando Montanez | 356bf97 | 2020-06-04 10:35:55 -0700 | [diff] [blame] | 1 | // Copyright 2020 The Pigweed Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| 4 | // use this file except in compliance with the License. You may obtain a copy of |
| 5 | // the License at |
| 6 | // |
| 7 | // https://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 11 | // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 12 | // License for the specific language governing permissions and limitations under |
| 13 | // the License. |
| 14 | |
| 15 | #include "pw_cpu_exception/handler.h" |
| 16 | |
| 17 | namespace pw::cpu_exception { |
| 18 | |
Armando Montanez | a9ca999 | 2021-01-26 17:06:10 -0800 | [diff] [blame] | 19 | static void (*exception_handler)(pw_cpu_exception_State*) = |
| 20 | &pw_cpu_exception_DefaultHandler; |
Armando Montanez | 356bf97 | 2020-06-04 10:35:55 -0700 | [diff] [blame] | 21 | |
Armando Montanez | a9ca999 | 2021-01-26 17:06:10 -0800 | [diff] [blame] | 22 | extern "C" void pw_cpu_exception_SetHandler( |
| 23 | void (*handler)(pw_cpu_exception_State*)) { |
Armando Montanez | 356bf97 | 2020-06-04 10:35:55 -0700 | [diff] [blame] | 24 | exception_handler = handler; |
| 25 | } |
| 26 | |
Armando Montanez | a9ca999 | 2021-01-26 17:06:10 -0800 | [diff] [blame] | 27 | // Revert the exception handler to point to pw_cpu_exception_DefaultHandler(). |
| 28 | extern "C" void pw_cpu_exception_RestoreDefaultHandler() { |
| 29 | exception_handler = &pw_cpu_exception_DefaultHandler; |
Armando Montanez | 356bf97 | 2020-06-04 10:35:55 -0700 | [diff] [blame] | 30 | } |
| 31 | |
Armando Montanez | a9ca999 | 2021-01-26 17:06:10 -0800 | [diff] [blame] | 32 | extern "C" void pw_cpu_exception_HandleException(void* cpu_state) { |
| 33 | exception_handler(reinterpret_cast<pw_cpu_exception_State*>(cpu_state)); |
Armando Montanez | 356bf97 | 2020-06-04 10:35:55 -0700 | [diff] [blame] | 34 | } |
| 35 | |
| 36 | } // namespace pw::cpu_exception |