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1 // Copyright 2022 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 #pragma once
15 
16 #include "pw_cpu_exception_cortex_m/cpu_state.h"
17 
18 namespace pw::cpu_exception::cortex_m {
19 
20 void LogExceptionAnalysis(const pw_cpu_exception_State& cpu_state);
21 
22 enum class ProcessorMode {
23   kHandlerMode,  // Handling interrupts/exceptions (msp).
24   kThreadMode,   // May be on either psp or msp.
25 };
26 ProcessorMode ActiveProcessorMode(const pw_cpu_exception_State& cpu_state);
27 
28 // Returns whether the msp was active in thread or handler modes.
29 bool MainStackActive(const pw_cpu_exception_State& cpu_state);
30 
31 // Returns whether the psp was active in thread mode.
ProcessStackActive(const pw_cpu_exception_State & cpu_state)32 inline bool ProcessStackActive(const pw_cpu_exception_State& cpu_state) {
33   return !MainStackActive(cpu_state);
34 }
35 
36 }  // namespace pw::cpu_exception::cortex_m
37