Dash - Reinventing Cryptocurrency
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Andrew Chow d5e15dfc5a
Merge bitcoin/bitcoin#26839: Add support for RNDR/RNDRRS for AArch64 on Linux
aee5404e02e203a256c1a97b629b9b107cc8bb07 Add support for RNDR/RNDRRS for aarch64 on Linux (John Moffett)

Pull request description:

  This checks whether the ARMv8.5-A optional TRNG extensions [RNDR](https://developer.arm.com/documentation/ddi0601/2022-12/AArch64-Registers/RNDR--Random-Number) and [RNDRRS](https://developer.arm.com/documentation/ddi0601/2022-12/AArch64-Registers/RNDRRS--Reseeded-Random-Number) are available and, if they are, uses them for random entropy purposes.

  They are nearly functionally identical to the x86 RDRAND/RDSEED extensions and are used in a similar manner.

  Currently, there [appears to be](https://marcin.juszkiewicz.com.pl/download/tables/arm-socs.html) only one actual hardware implementation -- the Amazon Graviton 3. (See the `rnd` column in the link.) However, future hardware implementations may become available.

  It's not possible to directly query for the capability in userspace, but the Linux kernel [added support](1a50ec0b3b) for querying the extension via `getauxval` in version 5.6 (in 2020), so this is limited to Linux-only for now.

  Reviewers may want to launch any of the `c7g` instances from AWS to test the Graviton 3 hardware. Alternatively, QEMU emulates these opcodes for `aarch64` with CPU setting `max`.

  Output from Graviton 3 hardware:

  ```
  ubuntu@ip:~/bitcoin$ src/bitcoind -regtest
  2023-01-06T20:01:48Z Bitcoin Core version v24.99.0-3670266ce89a (release build)
  2023-01-06T20:01:48Z Using the 'arm_shani(1way,2way)' SHA256 implementation
  2023-01-06T20:01:48Z Using RNDR and RNDRRS as additional entropy sources
  2023-01-06T20:01:48Z Default data directory /home/ubuntu/.bitcoin
  ```

  Graviton 2 (doesn't support extensions):

  ```
  ubuntu@ip:~/bitcoin$ src/bitcoind -regtest
  2023-01-06T20:05:04Z Bitcoin Core version v24.99.0-3670266ce89a (release build)
  2023-01-06T20:05:04Z Using the 'arm_shani(1way,2way)' SHA256 implementation
  2023-01-06T20:05:04Z Default data directory /home/ubuntu/.bitcoin
  ```

  This partially closes #26796. As noted in that issue, OpenSSL [added support](https://github.com/openssl/openssl/pull/15361) for these extensions a little over a year ago.

ACKs for top commit:
  achow101:
    ACK aee5404e02e203a256c1a97b629b9b107cc8bb07
  laanwj:
    Tested ACK aee5404e02e203a256c1a97b629b9b107cc8bb07

Tree-SHA512: 1c1eb345d6690f5307a87e9bac8f06a0d1fdc7ca35db38fa22192510a44289a03252e4677dc7cbf731a27e6e3a9a4e42b6eb4149fe063bc1c905eb2536cdb1d3
2024-10-24 13:50:32 -05:00
.github fix: fetch PR head before merging it in "check ff" 2024-10-24 15:20:15 +03:00
.tx fix: follow-up #5393 - should be used [dash.dash_ents] (#5472) 2023-07-01 14:16:50 +03:00
build-aux/m4 Merge bitcoin/bitcoin#30567: qt, build: Drop QT_STATICPLUGIN macro 2024-10-03 01:16:40 -05:00
ci Merge #6326: backport: bitcoin#20191, #20791, #21345, #21563, #22153, #22376, #22461, bitcoin-core/gui#365, bitcoin-core/gui#375, partial bitcoin#20755 2024-10-24 10:35:17 -05:00
contrib Merge bitcoin/bitcoin#28624: docs: fix typo 2024-10-24 11:17:28 -05:00
depends Merge bitcoin/bitcoin#28778: depends: drop -O1 workaround from arm64 apple Qt build 2024-10-24 13:50:32 -05:00
doc Merge bitcoin/bitcoin#28556: doc: fix link to developer-notes.md file in multiprocess.md 2024-10-24 11:17:20 -05:00
share Merge #6111: backport: bitcoin-core/gui#154, #176, #221, #248, #251 - qt improvements and related fixes 2024-07-23 14:17:33 -05:00
src Merge bitcoin/bitcoin#26839: Add support for RNDR/RNDRRS for AArch64 on Linux 2024-10-24 13:50:32 -05:00
test Merge bitcoin/bitcoin#28697: fuzz: Increase merge -rss_limit_mb 2024-10-24 13:50:31 -05:00
.cirrus.yml merge bitcoin#23564: don't use deprecated brew package names 2024-10-08 15:59:17 +00:00
.dockerignore build: add dash minimal development environment container 2021-12-21 12:43:37 +05:30
.editorconfig Merge #21123: code style: Add EditorConfig file 2021-07-16 10:04:09 -05:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Merge bitcoin/bitcoin#29733: build, macos: Drop unused osx_volname target 2024-10-04 12:54:24 -05:00
.gitlab-ci.yml fix: missing changes from bitcoin#19267 - run multiprocess on CI 2024-07-24 20:06:12 +07:00
.python-version partial Merge bitcoin/bitcoin#28210: build: Bump clang minimum supported version to 13 2024-10-06 13:36:27 -05:00
.style.yapf Merge #15533: test: .style.yapf: Set column_limit=160 2021-07-10 12:10:51 -05:00
autogen.sh Merge #17829: scripted-diff: Bump copyright of files changed in 2019 2023-12-06 11:40:14 -06:00
CMakeLists.txt chore: Added missing sources files in CMake (#5503) 2023-07-25 12:23:56 -05:00
configure.ac Merge bitcoin/bitcoin#28459: build: add -mbranch-protection=bti (aarch64) to hardening flags 2024-10-24 11:17:28 -05:00
CONTRIBUTING.md Merge #6220: backport: Merge bitcoin#18448,24433, 24139, 23001, (partial) 24339, (partial) core/gui#420 2024-09-27 12:29:08 -05:00
COPYING docs: update license year range to 2024 (#5890) 2024-02-22 20:56:43 -06:00
INSTALL.md Dashify INSTALL.md and build-unix.md 2018-01-12 16:12:54 +01:00
libdashconsensus.pc.in revert dash#1432: Rename consensus source library and API 2022-08-09 14:16:28 +05:30
Makefile.am merge bitcoin#23114: Add minisketch subtree and integrate into build/test 2024-10-20 10:37:12 +00:00
README.md doc: make build steps more prominent 2024-07-18 01:22:42 -06:00
SECURITY.md docs: update SECURITY.md supported versions 2024-07-16 15:32:39 +00:00

Dash Core staging tree

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https://www.dash.org

For an immediately usable, binary version of the Dash Core software, see https://www.dash.org/downloads/.

Further information about Dash Core is available in ./doc/.

What is Dash?

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

For more information read the original Dash whitepaper.

License

Dash 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 meant to be stable. Development is normally done in separate branches. Tags are created to indicate new official, stable release versions of Dash Core.

The develop branch is regularly built (see doc/build-*.md for instructions) and tested, but is not guaranteed to be completely stable.

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

Build / Compile from Source

The ./configure, make, and cmake steps, as well as build dependencies, are in ./doc/ as well:

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 Dash 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.