09351f51d2
5228223e1ff2af29e6e77668ce3288005c2adbbc ci: remove MSAN getrandom syscall workaround (fanquake) d5e06919db5e221bfef445c5a40c88de72dc5869 random: switch to using getrandom() directly (fanquake) c2ba3f5b0c7d0eece7d16d1ffc125d8a6a9297af random: add [[maybe_unused]] to GetDevURandom (fanquake) c13c97dbf846cf0e6a5581ac414ef96a215b0dc6 random: getentropy on macOS does not need unistd.h (fanquake) Pull request description: This requires a linux kernel of `3.17`+, which seems entirely reasonable. `3.17` went EOL in 2015, and the last supported `3.x` kernel (`3.16`) went EOL > 4 years ago, in 2020. For reference, the current oldest maintained kernel is `4.14` (released 2017, going EOL Jan 2024). Support for `getrandom()` (and `getentropy()`) was added to glibc `2.25` https://sourceware.org/legacy-ml/libc-alpha/2017-02/msg00079.html: > * The getentropy and getrandom functions, and the <sys/random.h> header file have been added. and we already require `2.27` or later. All that being said, I don't think you would encounter a current day (+~6 months from now) system, running with kernel headers older than 3.17 (released 2014) but also having a glibc of 2.27+ (released 2018)? Removing this (our only) use of `syscall()` also means we can drop a workaround in our MSAN jobs. If this is merged, I'll drop the [same workaround in oss-fuzz](25946a5448/projects/bitcoin-core/build.sh (L49-L56)). ACKs for top commit: josibake: ACK5228223e1fhebasto: ACK 5228223e1ff2af29e6e77668ce3288005c2adbbc, I've tested build system changes on Ubuntu 22.04 and macOS Monterey 12.6.6 (x86_64). Tree-SHA512: cc978e08510c461b875ca8c08ae176b4519fa1108f0efd74dcb7474518945357e0184e54423282c9a496de195e4ddc3e221ee78623bd63e24c50cc86acdf32e2
Bitcoin Core integration/staging tree
For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.
What is Bitcoin Core?
Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.
Further information about Bitcoin Core is available in the doc folder.
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 (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be
completely stable. Tags are created
regularly from release branches to indicate new official, stable release versions of Bitcoin Core.
The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.
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.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The CI (Continuous Integration) systems make 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.