82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
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/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LIBUNWINDSTACK_ERROR_H
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#define _LIBUNWINDSTACK_ERROR_H
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#include <stdint.h>
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namespace unwindstack {
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// A bit map of warnings, multiple warnings can be set at the same time.
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enum WarningCode : uint64_t {
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WARNING_NONE = 0,
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WARNING_DEX_PC_NOT_IN_MAP = 0x1, // A dex pc was found, but it doesn't exist
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// in any valid map.
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};
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enum ErrorCode : uint8_t {
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ERROR_NONE, // No error.
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ERROR_MEMORY_INVALID, // Memory read failed.
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ERROR_UNWIND_INFO, // Unable to use unwind information to unwind.
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ERROR_UNSUPPORTED, // Encountered unsupported feature.
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ERROR_INVALID_MAP, // Unwind in an invalid map.
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ERROR_MAX_FRAMES_EXCEEDED, // The number of frames exceed the total allowed.
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ERROR_REPEATED_FRAME, // The last frame has the same pc/sp as the next.
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ERROR_INVALID_ELF, // Unwind in an invalid elf.
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ERROR_THREAD_DOES_NOT_EXIST, // Attempt to unwind a local thread that does
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// not exist.
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ERROR_THREAD_TIMEOUT, // Timeout trying to unwind a local thread.
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ERROR_SYSTEM_CALL, // System call failed while unwinding.
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};
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static inline const char* GetErrorCodeString(ErrorCode error) {
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switch (error) {
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case ERROR_NONE:
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return "None";
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case ERROR_MEMORY_INVALID:
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return "Memory Invalid";
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case ERROR_UNWIND_INFO:
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return "Unwind Info";
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case ERROR_UNSUPPORTED:
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return "Unsupported";
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case ERROR_INVALID_MAP:
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return "Invalid Map";
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case ERROR_MAX_FRAMES_EXCEEDED:
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return "Maximum Frames Exceeded";
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case ERROR_REPEATED_FRAME:
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return "Repeated Frame";
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case ERROR_INVALID_ELF:
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return "Invalid Elf";
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case ERROR_THREAD_DOES_NOT_EXIST:
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return "Thread Does Not Exist";
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case ERROR_THREAD_TIMEOUT:
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return "Thread Timeout";
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case ERROR_SYSTEM_CALL:
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return "System Call Failed";
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}
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}
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struct ErrorData {
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ErrorCode code;
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uint64_t address; // Only valid when code is ERROR_MEMORY_INVALID.
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// Indicates the failing address.
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};
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} // namespace unwindstack
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#endif // _LIBUNWINDSTACK_ERROR_H
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