1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _LIBUNWINDSTACK_ERROR_H 18 #define _LIBUNWINDSTACK_ERROR_H 19 20 #include <stdint.h> 21 22 namespace unwindstack { 23 24 enum ErrorCode : uint8_t { 25 ERROR_NONE, // No error. 26 ERROR_MEMORY_INVALID, // Memory read failed. 27 ERROR_UNWIND_INFO, // Unable to use unwind information to unwind. 28 ERROR_UNSUPPORTED, // Encountered unsupported feature. 29 ERROR_INVALID_MAP, // Unwind in an invalid map. 30 ERROR_MAX_FRAMES_EXCEEDED, // The number of frames exceed the total allowed. 31 ERROR_REPEATED_FRAME, // The last frame has the same pc/sp as the next. 32 }; 33 34 struct ErrorData { 35 ErrorCode code; 36 uint64_t address; // Only valid when code is ERROR_MEMORY_INVALID. 37 // Indicates the failing address. 38 }; 39 40 } // namespace unwindstack 41 42 #endif // _LIBUNWINDSTACK_ERROR_H 43