sdong d9cd33516a Suppress UBSAN warning in CRC32 ARM (#6827)
Summary:
UBSAN shows following warning:

util/crc32c_arm64.cc:111:11: runtime error: load of misaligned address 0x00001afcda86 for type 'const uint64_t', which requires 8 byte alignment
0x00001afcda86: note: pointer points here
cc c1 2d 00 01 81  40 24 30 66 39 66 30 37  30 63 2d 32 36 63 34 2d  34 62 61 61 2d 38 35 33  31 2d
^

Suppress it just as what we do in x86 CRC.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6827

Test Plan: Run the same UBSAN and see it to pass now.

Reviewed By: ltamasi

Differential Revision: D21471838

fbshipit-source-id: 02943dd39a7030d2b03e5d894dcb23ed72b6c9c3
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RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

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RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)

This code is a library that forms the core building block for a fast key-value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it especially suitable for storing multiple terabytes of data in a single database.

Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples

See the github wiki for more explanation.

The public interface is in include/. Callers should not include or rely on the details of any other header files in this package. Those internal APIs may be changed without warning.

Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.

Description
A library that provides an embeddable, persistent key-value store for fast storage.
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