Also add a comment to the GetElf function to indicate that it never returns
nullptr.
Also needed to add this library to the a million and one places that the vndk
has hard-coded this data.
Bug: 23762183
Test: Built, nothing uses the new code.
Test: However, I did run backtrace_test using this code, and all tests pass.
Change-Id: Ib270665dcb7a7607075e36d88be76dbde6e2faa8
(cherry picked from commit dc4104b720)
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
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* Copyright (C) 2016 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_MAP_INFO_H
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#define _LIBUNWINDSTACK_MAP_INFO_H
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#include <stdint.h>
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#include <string>
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namespace unwindstack {
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// Forward declarations.
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class Elf;
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class Memory;
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struct MapInfo {
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uint64_t start;
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uint64_t end;
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uint64_t offset;
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uint16_t flags;
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std::string name;
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Elf* elf = nullptr;
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// This value is only non-zero if the offset is non-zero but there is
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// no elf signature found at that offset. This indicates that the
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// entire file is represented by the Memory object returned by CreateMemory,
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// instead of a portion of the file.
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uint64_t elf_offset;
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Memory* CreateMemory(pid_t pid);
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// This function guarantees it will never return nullptr.
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Elf* GetElf(pid_t pid, bool init_gnu_debugdata = false);
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};
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} // namespace unwindstack
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#endif // _LIBUNWINDSTACK_MAP_INFO_H
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