Dash - Reinventing Cryptocurrency
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W. J. van der Laan 8ca3005a91 Merge bitcoin/bitcoin#22645: scripts: prevent GCC optimising test symbols in test-symbol-check
5449d44e37982fcd5251fd47873c5f7d34c39fc9 scripts: prevent GCC optimising test symbols in test-symbol-check (fanquake)

Pull request description:

  I noticed in #22381 that when the test-symbol-check target was being built with Clang and run in the CI it would fail due to using a too-new version of `pow` (used [here](d67330d112/contrib/devtools/test-symbol-check.py (L85))). Our CIs use Focal (glibc 2.31) and the version of `pow` was the optimized version introduced in [glibc 2.29](https://lwn.net/Articles/778286/):
  ```bash
  * Optimized generic exp, exp2, log, log2, pow, sinf, cosf, sincosf and tanf.
  ```
  This made sense, except for that if it was failing when built using Clang, why hadn't it also been failing when being built with GCC?

  Turns out GCC is optimizing away that call to `pow` at all optimization levels, including `-O0`, see: https://godbolt.org/z/53MhzMxT7, and this has been the case forever, or at least since GCC 5.x. Clang on the other hand, will only optimize away the `pow` call at `-O1` and `-O2`, not `-O0`: https://godbolt.org/z/Wbnqj3q6c. Thus when this test was built with Clang (we don't pass `-O` so we default to `-O0`) it was failing in the CI environment, because it would actually have a call to the "new" `pow`.

  Avoid this issue by using a symbol that won't be optimized away, or that we are unlikely to ever have versioning issues with.

ACKs for top commit:
  laanwj:
    ACK 5449d44e37982fcd5251fd47873c5f7d34c39fc9

Tree-SHA512: 3a26c5c3a5f2905fd0dd90892470e241ba625c0af3be2629d06d5da3a97534c1d6a55b796bbdd41e2e6a26a8fab7d981b98c45d4238565b0eb7edf3c5da02007
2023-04-16 23:40:59 +03:00
.github ci: add ci for merging into master (#5316) 2023-04-14 16:53:07 -05:00
.tx partial bitcoin#21694: Use XLIFF file to provide more context to Transifex translators 2022-04-26 20:36:54 +05:30
build-aux/m4 merge bitcoin#20202: Make BDB support optional 2023-02-07 10:53:33 -06:00
ci fix(tests): Fix retries for the non-deterministic test suite (#5307) 2023-04-14 23:13:47 -05:00
contrib Merge bitcoin/bitcoin#22645: scripts: prevent GCC optimising test symbols in test-symbol-check 2023-04-16 23:40:59 +03:00
depends Merge bitcoin/bitcoin#22234: build: Mark print-% target as phony. 2023-04-16 23:40:59 +03:00
doc Merge bitcoin/bitcoin#22056: doc: describe in fuzzing.md how to reproduce a CI crash 2023-04-16 23:40:59 +03:00
share Merge #21333: build: set Unicode true for NSIS installer 2023-04-14 23:34:11 -05:00
src Merge bitcoin/bitcoin#22215: refactor: Add FoundBlock.found member 2023-04-16 23:40:59 +03:00
test Merge #20379: tests: Remove no longer needed UBSan suppression (float divide-by-zero in validation.cpp) 2023-04-16 23:40:59 +03:00
.cirrus.yml Merge #17233: travis: Run unit and functional tests on native arm 2022-05-31 12:06:32 -04:00
.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
.fuzzbuzz.yml merge bitcoin#20560: Link all targets once 2022-10-02 12:05:30 +05:30
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Merge #19595: Fix .gitignore for src/test/fuzz directory 2023-01-23 11:21:05 -06:00
.gitlab-ci.yml fix(ci): skip more jobs in "FAST_MODE" (#5311) 2023-04-14 16:56:40 -05:00
.python-version bump .python-version (#4717) 2022-03-23 09:26:24 +03:00
.style.yapf Merge #15533: test: .style.yapf: Set column_limit=160 2021-07-10 12:10:51 -05:00
.travis.yml fix: reviewing TODOes at v19 (#5303) 2023-04-09 00:11:22 -05:00
autogen.sh Merge #17074: build: Added double quotes 2021-12-22 10:15:40 -06:00
CMakeLists.txt chore: Added governance sources files in CMake (#5105) 2022-12-13 20:54:59 +03:00
configure.ac chore: bump version to v20.0.0 (#5215) 2023-04-14 17:01:04 -05:00
CONTRIBUTING.md fix(doc/ci): break rpc/rest/zmq into individual scopes, sort scopes (#5079) 2022-11-21 12:06:24 -06:00
COPYING Bump copyright year to 2020 (#3290) 2020-01-17 15:42:55 +01:00
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/bitcoin#22234: build: Mark print-% target as phony. 2023-04-16 23:40:59 +03:00
README.md chore: bump version in gitian-descriptors and README.md 2022-04-16 07:59:23 -06:00
SECURITY.md Merge bitcoin/bitcoin#23466: doc: Suggest keys.openpgp.org as keyserver in SECURITY.md 2022-04-03 18:46:47 -05:00

Dash Core staging tree 18.0

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https://www.dash.org

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.

Pre-Built Binary

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

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 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 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.

Translators should also follow the forum.