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Wladimir J. van der Laan 22d11187ee
Merge #17398: build: Update leveldb to 1.22+ 
677fb8e923 test: Add ubsan surpression for crc32c (Wladimir J. van der Laan)
8e68bb1dde build: Disable msvc warning 4722 for leveldb build (Aaron Clauson)
be23949765 build: MSVC changes for leveldb update (Aaron Clauson)
9ebdf04757 build: CRC32C build system integration (Wladimir J. van der Laan)
402252a808 build: Add LCOV exception for crc32c (Wladimir J. van der Laan)
3a037d0067 test: Add crc32c exception to various linters and generation scripts (Wladimir J. van der Laan)
84ff1b2076 test: Add crc32c to subtree check linter (Wladimir J. van der Laan)
7cf13a5134 doc: Add crc32c subtree to developer notes (Wladimir J. van der Laan)
24d02a9ac0 build: Update build system for new leveldb (Wladimir J. van der Laan)
2e1819311a Squashed 'src/crc32c/' content from commit 224988680f7673cd7c769963d4035cb315aa3388 (Wladimir J. van der Laan)
66480821b3 Squashed 'src/leveldb/' changes from f545dfabff4c2e9836efed094dba99a34fbc6b88..f8ae182c1e5176d12e816fb2217ae33a5472fdd7 (Wladimir J. van der Laan)

Pull request description:

  This updates leveldb to currently newest upstream commit 0c40829872:

  - CRC32C hardware acceleration is now an external library [crc32c](https://github.com/google/crc32c). This adds acceleration on ARM, and should be faster on x86 because of using prefetch. It also makes it easy to support similar instruction sets on other platforms in the future.
  - Thread handling uses C++11, instead of platform specific code.
  - Native windows environment was added. No need to maintain our own hacky one, anymore.
  - Upstream now builds using CMake. This doesn't mean we need to use that (phew), but internal configuration changed to a a series of checks, instead of OS profiles. This means the blanket error "Cannot build leveldb for $host. Please file a bug report' is removed.

  All changes: a53934a3ae...0c40829872

  Pretty much all our changes have been subsumed by upstream, so we figured it was cleaner to start over with a new branch from upstream with the still-relevant patches applied: https://github.com/bitcoin-core/leveldb/tree/bitcoin-fork-new

  There's quite some testing to be done (see below). See https://github.com/bitcoin-core/leveldb/issues/25 and https://github.com/bitcoin-core/leveldb/pull/26 for more history and context.

  TODO:
  - [x] Subtree `crc32c`
  - [x] Make linters happy about crc32 subtree
  - [x] Integrate `crc32c` library into build system
  - [x] MSVC build system

ACKs for top commit:
  sipa:
    ACK 677fb8e923

Tree-SHA512: 37ee92a750e053e924bc4626b12bb3fd81faa9f8c5ebaa343931fee810c45ba05aa6051fdea82535fa351bf2be7297801b98af9469865fc5ead771650a5d6240
2020-02-10 11:36:09 +01:00
.github Remove GitHub Actions CI workflow. 2020-01-30 18:45:28 +00:00
.tx gui: Update transifex slug for 0.19 2019-09-02 13:40:01 +02:00
build-aux/m4 Merge #16110: depends: Add Android NDK support 2019-11-04 13:32:19 +01:00
build_msvc Merge #17398: build: Update leveldb to 1.22+ 2020-02-10 11:36:09 +01:00
ci Merge #17398: build: Update leveldb to 1.22+ 2020-02-10 11:36:09 +01:00
contrib Merge #17398: build: Update leveldb to 1.22+ 2020-02-10 11:36:09 +01:00
depends build: use macOS 10.14 SDK 2020-02-03 19:49:46 +08:00
doc Merge #17398: build: Update leveldb to 1.22+ 2020-02-10 11:36:09 +01:00
share Merge #17660: build: remove deprecated key from macOS Info.plist 2020-02-05 14:26:00 +01:00
src Merge #17398: build: Update leveldb to 1.22+ 2020-02-10 11:36:09 +01:00
test Merge #17398: build: Update leveldb to 1.22+ 2020-02-10 11:36:09 +01:00
.appveyor.yml Updated appveyor job to checkout a specific vcpkg commit ID. 2020-01-25 19:07:03 +00:00
.cirrus.yml ci: remove OpenSSL installation 2019-11-18 08:56:48 -05:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Merge #17452: test: update fuzz directory in .gitignore 2020-01-08 06:47:18 +08:00
.python-version .python-version: Specify full version 3.5.6 2019-03-02 12:06:26 -05:00
.style.yapf test: .style.yapf: Set column_limit=160 2019-03-04 18:28:13 -05:00
.travis.yml Merge #17767: ci: Fix qemu issues 2020-01-22 21:09:13 +01:00
autogen.sh scripted-diff: Bump copyright of files changed in 2019 2019-12-30 10:42:20 +13:00
configure.ac Merge #17398: build: Update leveldb to 1.22+ 2020-02-10 11:36:09 +01:00
CONTRIBUTING.md Merge #17688: doc: Add "ci" prefix to CONTRIBUTING.md 2020-01-04 14:28:24 +08:00
COPYING doc: Update license year range to 2020 2019-12-26 23:11:21 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am build: Add LCOV exception for crc32c 2020-01-28 17:01:48 +01:00
README.md doc: Fix some misspellings 2019-11-04 04:22:53 -05:00
SECURITY.md doc: Remove explicit mention of version from SECURITY.md 2019-06-14 06:39:17 -04:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built and tested, but is not guaranteed to be completely stable. Tags are created regularly to indicate new official, stable release versions of Bitcoin Core.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.

Translators should also subscribe to the mailing list.