1 // Copyright 2024 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_system/crash_handler.h" 16 17 #include "pw_assert_trap/message.h" 18 #include "pw_cpu_exception/handler.h" 19 #include "pw_log/log.h" 20 #include "pw_system/crash_snapshot.h" 21 #include "pw_system/device_handler.h" 22 23 namespace pw::system { 24 25 namespace { 26 27 CrashSnapshot crash_snapshot; 28 pw_system_exception_handler(pw_cpu_exception_State * state)29extern "C" void pw_system_exception_handler(pw_cpu_exception_State* state) { 30 // TODO: b/354769112 - handle nested exceptions. 31 PW_LOG_CRITICAL("CPU exception encountered!"); 32 33 auto assert_message = pw_assert_trap_get_message(); 34 crash_snapshot.Capture(*state, assert_message); 35 36 device_handler::RebootSystem(); 37 } 38 39 } // namespace 40 RegisterCrashHandler()41void RegisterCrashHandler() { 42 pw_cpu_exception_SetHandler(pw_system_exception_handler); 43 } 44 45 } // namespace pw::system 46