Update to latest Bitcoin patches for LevelDB #10958

1. 
   sipa commented at 6:52 AM on July 31, 2017: member

   Includes:

   • https://github.com/bitcoin-core/leveldb/pull/2: Prefer std::atomic over MemoryBarrier (Pieter Wuille)
   • https://github.com/bitcoin-core/leveldb/pull/5: Move helper functions out of sse4.2 object (Cory Fields)
   • https://github.com/bitcoin-core/leveldb/pull/6: Fixes typo (Dimitris Tsapakidis)
   • https://github.com/bitcoin-core/leveldb/pull/10: Clean up compile-time warnings (gcc 7.1) (Matt Corallo)
   • https://github.com/bitcoin-core/leveldb/pull/11: fixup define checks. Cleans up some oopses from #5 (Cory Fields)
2. sipa added this to the milestone 0.15.0 on Jul 31, 2017
3. 
   gmaxwell commented at 7:06 AM on July 31, 2017: contributor

   utACK. The warnings are obnoxious.

4. 
   MarcoFalke commented at 7:16 AM on July 31, 2017: member

   You'd have to merge https://github.com/bitcoin-core/leveldb/pull/6 as well for the warning to go away.

   • With "warning" I mean the failed subtree check:

   ./contrib/devtools/git-subtree-check.sh src/leveldb
   FAIL: subtree directory tree doesn't match subtree commit tree
   

5. 
   sipa commented at 7:32 AM on July 31, 2017: member

   @theuni Care to have a look? Apparently we try to build the cpuid detection code on ARM.

6. 
   theuni commented at 4:04 PM on July 31, 2017: member

   @sipa Grr, sorry. See https://github.com/bitcoin-core/leveldb/pull/11

7. 
   laanwj commented at 12:32 PM on August 1, 2017: member

   Looks like it builds, we can get rid of the [DONTMERGE]?

8. Squashed 'src/leveldb/' changes from 196962ff0..c521b3ac6

   c521b3ac6 Merge #11: fixup define checks. Cleans up some oopses from #5.
   8b1cd3753 fixup define checks. Cleans up some oopses from #5.
   6b1508d6d Merge #6: Fixes typo
   fceb80542 Merge #10: Clean up compile-time warnings (gcc 7.1)
   0ec2a343f Clean up compile-time warnings (gcc 7.1)
   d4c268a35 Merge #5: Move helper functions out of sse4.2 object
   8d4eb0847 Add HasAcceleratedCRC32C to port_win.h
   77cfbfd25 crc32: move helper functions out of port_posix_sse.cc
   4c1e9e016 silence compiler warnings about uninitialized variables
   495316485 Merge #2: Prefer std::atomic over MemoryBarrier
   2953978ef Fixes typo
   f134284a1 Merge #1: Merge upstream LevelDB 1.20
   ba8a445fd Prefer std::atomic over MemoryBarrier
   
   git-subtree-dir: src/leveldb
   git-subtree-split: c521b3ac654cfbe009c575eacf7e5a6e189bb5bb

   b13a68e129
9. Update LevelDB with latest Bitcoin-specific patches 47f3e8c74d
10. sipa force-pushed on Aug 1, 2017
11. 
    sipa commented at 7:44 PM on August 1, 2017: member

    @laanwj Done

12. 
    MarcoFalke commented at 8:03 PM on August 1, 2017: member

    utACK 47f3e8c74d390139967cc40e37cf5b433f0b0f9f. Looks good:

    ./contrib/devtools/git-subtree-check.sh src/leveldb
    src/leveldb in HEAD was last updated to upstream commit c521b3ac654cfbe009c575eacf7e5a6e189bb5bb (tree c461c1652fef37b42ddc18a02cbc28920342270d)
    src/leveldb in HEAD currently refers to tree c461c1652fef37b42ddc18a02cbc28920342270d
    GOOD
    

13. 
    theuni commented at 9:20 PM on August 1, 2017: member

    ACK 47f3e8c74d390139967cc40e37cf5b433f0b0f9f, tested previous versions of this.

14. 
    promag commented at 10:41 PM on August 1, 2017: member

    ACK 47f3e8c.

15. 
    laanwj commented at 7:00 AM on August 2, 2017: member

    utACK 47f3e8c

16. laanwj merged this on Aug 2, 2017
17. laanwj closed this on Aug 2, 2017

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Milestone
0.15.0