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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

lint

test: Add crc32c to subtree check linter

2020-01-28 17:01:48 +01:00

retry

build: update retry to current version

2019-10-30 18:49:57 -04:00

test

build: use macOS 10.14 SDK

2020-02-03 19:49:46 +08:00

README.md

ci: Extend docs

2019-11-10 22:30:13 -05:00

test_run_all.sh

ci: Add environment files for all settings

2019-08-16 08:46:37 -04:00

README.md

ci scripts

This directory contains scripts for each build step in each build stage.

Currently three stages lint, extended_lint and test are defined. Each stage has its own lifecycle, similar to the Travis CI lifecycle. Every script in here is named and numbered according to which stage and lifecycle step it belongs to.

Running a stage locally

Be aware that the tests will be built and run in-place, so please run at your own risk. If the repository is not a fresh git clone, you might have to clean files from previous builds or test runs first.

The ci needs to perform various sysadmin tasks such as installing packages or writing to the user's home directory. While most of the actions are done inside a docker container, this is not possible for all. Thus, cache directories, such as the depends cache or ccache, are mounted as read-write into the docker container. While it should be fine to run the ci system locally on you development box, the ci scripts can generally be assumed to have received less review and testing compared to other parts of the codebase. If you want to keep the work tree clean, you might want to run the ci system in a virtual machine with a Linux operating system of your choice.

To allow for a wide range of tested environments, but also ensure reproducibility to some extent, the test stage requires docker to be installed. To install all requirements on Ubuntu, run

sudo apt install docker.io bash

To run the default test stage,

./ci/test_run_all.sh

To run the test stage with a specific configuration,

FILE_ENV="./ci/test/00_setup_env_arm.sh" ./ci/test_run_all.sh