When building with
BUILD_FOR_FUZZING=OFF
BUILD_FUZZ_BINARY=ON
CMAKE_BUILD_TYPE=Debug
allow the fuzz binary to execute given test cases (without actual
fuzzing) to make it easier to reproduce fuzz test failures in a more
normal debug build.
In Debug builds, deterministic fuzz behaviour is controlled via a runtime
variable, which is normally false, but set to true automatically in the
fuzz binary, unless the FUZZ_NONDETERMINISM environment variable is set.
1. Do not set `C{PLUS}_INCLUDE_PATH` variables
The build system for Qt 6 differs entirely from that of Qt 5. Building a
set of native Qt 6 tools now forms a separate step when cross-compiling.
Under these new circumstances, the `C{PLUS}_INCLUDE_PATH` environment
variables may alter the default include directories for both native and
cross compilers.
Previously, we explicitly unset these variables when invoking clang for
cross-compiling; however, that approach proved suboptimal (see #30451).
This change sets the native toolchain for dependencies explicitly,
rather than relying on the `C{PLUS}_INCLUDE_PATH` environment variables.
Additionally, it facilitates the transition towards using clang for
building native tools when cross-compiling for macOS.
2. Add `ninja` package.
3. Adjust allowed symbol lists.
b96f1a696a add clang/llvm based coverage report generation (Prabhat Verma)
Pull request description:
Followed up from the [comment](https://github.com/bitcoin/bitcoin/issues/31927#issuecomment-2674522975) on the issue [#31927](https://github.com/bitcoin/bitcoin/issues/31927) , issues have been observed building coverage reports with `gcov` in MacOs and NixOs. This PR adds the steps to generate a coverage report based on the default llvm/clang tooling.
ACKs for top commit:
Crypt-iQ:
tACK b96f1a696a
hodlinator:
re-ACK b96f1a696a
janb84:
Re ACK [b96f1a6](b96f1a696a)
Tree-SHA512: bc54f170e84bb76b3eba7285bd49f051c0b99b784d583a550d8e51511497bcc4df8964bbe3991777648d2f829809db8eabb0cbf0d25f9da5e49e1cfc62f6d8d0
fa51310121 contrib: Warn about using libFuzzer for coverage check (MarcoFalke)
fa17cdb191 test: Avoid script check worker threads while fuzzing (MarcoFalke)
fa900bb2dc contrib: Only print fuzz output on failure (MarcoFalke)
fa82fe2c73 contrib: Use -Xdemangler=llvm-cxxfilt in deterministic-*-coverage (MarcoFalke)
fa7e931130 contrib: Add optional parallelism to deterministic-fuzz-coverage (MarcoFalke)
Pull request description:
This should make the `partially_downloaded_block` fuzz target even more deterministic.
Follow-up to https://github.com/bitcoin/bitcoin/pull/31841. Tracking issue: https://github.com/bitcoin/bitcoin/issues/29018.
This bundles several changes:
* First, speed up the `deterministic-fuzz-coverage` helper by introducing parallelism.
* Then, a fix to remove spawned test threads or spawn them deterministically. (While testing this, high parallelism and thread contention may be needed)
### Testing
It can be tested via (setting 32 parallel threads):
```
cargo run --manifest-path ./contrib/devtools/deterministic-fuzz-coverage/Cargo.toml -- $PWD/bld-cmake/ $PWD/../b-c-qa-assets/fuzz_corpora/ partially_downloaded_block 32
```
Locally, on a failure, the output would look like:
```diff
....
- 150| 0| m_worker_threads.emplace_back([this, n]() {
- 151| 0| util::ThreadRename(strprintf("scriptch.%i", n));
+ 150| 1| m_worker_threads.emplace_back([this, n]() {
+ 151| 1| util::ThreadRename(strprintf("scriptch.%i", n));
...
```
This excerpt likely indicates that the script threads were started after the fuzz init function returned.
Similarly, for the scheduler thread, it would look like:
```diff
...
227| 0| m_node.scheduler = std::make_unique<CScheduler>();
- 228| 1| m_node.scheduler->m_service_thread = std::thread(util::TraceThread, "scheduler", [&] { m_node.scheduler->serviceQueue(); });
+ 228| 0| m_node.scheduler->m_service_thread = std::thread(util::TraceThread, "scheduler", [&] { m_node.scheduler->serviceQueue(); });
229| 0| m_node.validation_signals =
...
```
ACKs for top commit:
Prabhat1308:
re-ACK [`fa51310`](fa51310121)
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re-ACK fa51310121
janb84:
Re-ACK [fa51310](fa51310121)
Tree-SHA512: 1a935eb19da98c7c3810b8bcc5287e5649ffb55bf50ab78c414a424fef8e703839291bb24040a552c49274a4a0292910a00359bdff72fa29a4f53ad36d7a8720
28dc118001 fuzz: wallet: fix crypter target (brunoerg)
Pull request description:
The crypter target has an issue, it's calling `DecryptKey` with a random secret and a random public key that will unlikely be related to the key used to encrypt, so it won't have any effect. This PR changes fixes it and also removes the `DecryptSecret` call since this function is already (and only) called within `DecryptKey`.
ACKs for top commit:
maflcko:
lgtm ACK 28dc118001🥊
Tree-SHA512: e96b7d33879bf06eeec0726e74e8e0d7020997659bf97dfca5d7c1a7ba65c4d93c78e666b97eebde110564cef2eefc7209d3e3586e4658145827b14d1b01dfc9
fa69c42fdf refactor: Remove spurious virtual from final ~CZMQNotificationInterface (MarcoFalke)
Pull request description:
`virtual` does not make sense here, because:
* The class is `final`, thus the destructor isn't overridden in a derived class
* The destructor also isn't overriding the destructor of the base, clarified in commit 2b3ea39de4
* Clang 21 may warn about this
```
src/zmq/zmqnotificationinterface.h:25:13: error: virtual method '~CZMQNotificationInterface' is inside a 'final' class and can never be overridden [-Werror,-Wunnecessary-virtual-specifier]
25 | virtual ~CZMQNotificationInterface();
| ^
```
Fix all issues by removing it.
ACKs for top commit:
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crACK fa69c42fdf
janb84:
ACK [fa69c42](fa69c42fdf)
TheCharlatan:
ACK fa69c42fdf
Tree-SHA512: 26ea977f31fe24c116d68dea6c583de7c6fc480877e1baefcde11db4ac191e352027d492ee6ad69a60fe4ff537e0841c638b3a3e81356d9e00c60030845fc96e
4774a0c923 test: fix spelling in Python code comment (John Bampton)
Pull request description:
Fixed a couple of typos
Top commit has no ACKs.
Tree-SHA512: 5334995672b2c7d4a9cb916f71dff6a2ce13dc7ced6bbc30ddb0fe8e0ae0b4094b675b3dfced1ffc1b92e3a33ee22df07af3032b8c2928f27051b6376dca3361
4a679936bb ci, windows: Do not exclude `wallet_migration.py` in command line (Hennadii Stepanov)
Pull request description:
This PR amends the recently merged https://github.com/bitcoin/bitcoin/pull/31176 to resolve a silent merge conflict with the previously merged https://github.com/bitcoin/bitcoin/pull/31248.
Since https://github.com/bitcoin/bitcoin/pull/31248, it is no longer necessary to use `--exclude wallet_migration.py`, as the test is skipped due to not using previous releases.
The `wallet_migration.py` test itself still needs to be fixed for Windows by someone who will work on https://github.com/bitcoin/bitcoin/issues/32192.
ACKs for top commit:
davidgumberg:
crACK 4a679936bb
Tree-SHA512: f42428016958cdaccb509cc49341e726eaf1314d85989a7b49888f3862dc4ea0c2988a4792ae62dd925302d0073906397801c8dd2fb06c23381d7cad38730249
7bb83f6718 test: create assert_not_equal util and add to where imports are needed (kevkevin)
Pull request description:
In the functional tests there are lots of cases where we assert != which we now swap with assert_not_equal to be more readable
This is motivated/uses logic from this PR which was closed https://github.com/bitcoin/bitcoin/pull/28528
This partially helps https://github.com/bitcoin/bitcoin/issues/23119
I've broken it up to just `assert_not_equal` to keep the PR smaller as suggested in https://github.com/bitcoin/bitcoin/pull/28528#issuecomment-1959945805
I can create follow up PR's if this is wanted
ACKs for top commit:
hodlinator:
re-ACK 7bb83f6718
ryanofsky:
Code review ACK 7bb83f6718. Only change since last review is fixing error message formatting and passing it as a keyword argument
janb84:
Re-ACK [7bb83f6](7bb83f6718)
Tree-SHA512: de09f41a690033a5b61e6f861d3bd69a32b889d6655a28fbc0d5cfac9f7ec9c642432967d33913970882b4cfdd47bdd377d0ddc44e25976cbaa49f7f9d8f7b10
8e4a0ddd50 torcontrol: Add comment explaining Proxy credential randomization for Tor privacy (Eval EXEC)
ec5c0b26ce torcontrol: Define tor reply code as const to improve maintainability (Eval EXEC)
Pull request description:
This PR want to:
1. replace tor repy code with const to improve out maintainability.
2. cherry-picked https://github.com/bitcoin/bitcoin/pull/31973 , add comment to explain Proxy credential randomization for Tor privacy
ACKs for top commit:
hodlinator:
re-ACK 8e4a0ddd50
laanwj:
re-ACK 8e4a0ddd50
Tree-SHA512: 038daa6508ca88fceed5c8e155430614cb56976f36d1f8baee5114bca1141122cf94f51814a869848b3442691ee765cbf609cf946b2b35d5135015a9b749d917
6afffba34e contrib: (asmap) add docs about encode and decode commands (jurraca)
67d5cc2a06 contrib: (asmap) add documentation on diff and diff-addrs commands (jurraca)
e047b1deca contrib: (asmap) add diff-addrs example to README (jurraca)
Pull request description:
This README was a little sparse in my opinion, and was missing a mention of the `diff-addrs` command.
The README updates add background and examples for each command, split in two sections (encode/decode and diff/diff-addrs). This is intended to help people know how and when to run the commands available in the `asmap-tool.py` script.
However, I could use some confirmation on the behavior of the `--fill` flag. It's true that files generated with this flag set cannot be used to diff files after the fact, but i don't quite follow what the fill flag does to make that true. sipa could you maybe provide some insight?
ACKs for top commit:
fjahr:
re-ACK 6afffba34e
brunoerg:
reACK 6afffba34e
laanwj:
re-ACK 6afffba34e
Tree-SHA512: 073e8d7255f7270aa2f5a070332872f5fa6fbe6532eee1f7e3e4158ac0125a49c155f4933bf00655ff3a89f666f3f3bea521e70c516ab09a448845016d2b880a
0ff66b1c4a fuzz: coinselection: cover `SetBumpFeeDiscount` (brunoerg)
Pull request description:
`SetBumpFeeDiscount` sets the bump fee discount which is used to calculate the waste. We currently have no fuzz coverage for this function, so this PR adds it by calling `SetBumpFeeDiscount` before `RecalculateWaste`.
ACKs for top commit:
marcofleon:
ACK 0ff66b1c4a
Tree-SHA512: d5c1d97daaeb7f9b096bf9bdf6374b8a674a75f464e2b9bb3e1e1774a5805b22840ca1f31bae63f106640d9ce27a99432c3034524340be91c235f6ec3b185cff
8284229a28 refactor: deduplicate anchor witness program bytes (`0x4e,0x73`) (Sebastian Falbesoner)
41f2f058d0 test: add missing segwitv1 test cases to `script_standard_tests` (Sebastian Falbesoner)
Pull request description:
Currently we have two segwitv1 output script types that are considered standard:
- `TxoutType::WITNESS_V1_TAPROOT` (P2TR): witness program has size 32 (introduced with taproot soft-fork)
- `TxoutType::ANCHOR` (P2A): witness program is {0x4e, 0x7e} (introduced with #30352)
This PR adds them to the script standardness unit tests where missing, i.e. for using them with the `ExtractDestination` and `GetScriptForDestination` functions.
ACKs for top commit:
rkrux:
ACK 8284229a28
instagibbs:
reACK 8284229a28
hodlinator:
Code Review ACK 8284229a28
Tree-SHA512: d4a3b47fd31ba33f62d4367811e72a7f442c01b046b0a7217a66be0b9dea5c9041eebfe812c31839ec0f0b14c56948c7c016d3d2de79283583ad8e32c192c6ff
aa7a898c23 doc: use testnet4 in developer docs (Sjors Provoost)
6c217d22fd test: use testnet4 in argsman test (Sjors Provoost)
7c200ece80 test: use testnet4 in key_io_valid.json (Sjors Provoost)
d424bd5941 test: drop unused testnet3 magic bytes (Sjors Provoost)
8cfc09fafe test: cover testnet4 magic in assumeutxo.py (Sjors Provoost)
4281e3603a zmq: use testnet4 in zmq_sub.py example (Sjors Provoost)
Pull request description:
In preparation for dropping testnet3 entirely in #31974 this PR migrates a few things to testnet4:
* the ZMQ examples
* developer docs
* various unit tests
* the snapshot magic byte check in `feature_assumeutxo.py`
It drops `testnet3` from `MAGIC_BYTES` in the test framework, since no test uses it.
ACKs for top commit:
fjahr:
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maflcko:
lgtm ACK aa7a898c23🔊
hodlinator:
re-ACK aa7a898c23
Tree-SHA512: 235f74273234e8fb2aedf0017dea5c16bb9813ec7a1f89a51abe85691f09830a5ead834115d7db0936e12e55a40bc81888856a8002fe507c1474407e77f8b9fb
In the functional tests there are lots of cases where we assert != which
this new util will replace, we also are adding the imports and the new assertion
Threads may execute their function any time after they are spawned, so
coverage could be non-deterministic.
Fix this,
* for the script check worker threads by disabling them while fuzzing.
* for the scheduler thread by waiting for it to fully start and run the
service queue.
This makes it humanly possible to track progress as only "[N/M]"-lines are printed as long as we succeed.
Also, use char (a, b) to indicate run_id instead of u8 (0, 1).
Also, use emojis to indicate final success or error.
Co-Authored-By: Hodlinator <172445034+hodlinator@users.noreply.github.com>
25b56fd9b4 ci: Test cross-built Windows executables on Windows natively (Hennadii Stepanov)
3501bca8c7 ci: Move "Windows cross" job from Cirrus CI to GHA CI (Hennadii Stepanov)
f8619196ce ci: Use `bash` by default for all platforms (Hennadii Stepanov)
Pull request description:
This PR enables on the CI tests of cross-compiled Windows binaries on Windows.
It is important to have such tests in CI because the release binaries for Windows are also cross-compiled.
Two functional tests, `wallet_migration.py` and `wallet_multiwallet.py`, are temporarily disabled. They require fixes, such as https://github.com/bitcoin/bitcoin/pull/31410, and adjustments for error message handling. Re-enabling these tests will be addressed in follow-up PRs.
Resolves https://github.com/bitcoin/bitcoin/issues/31071.
ACKs for top commit:
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tested reACK 25b56fd9b4
hodlinator:
re-ACK 25b56fd9b4
willcl-ark:
utACK 25b56fd9b4
maflcko:
review-only ACK 25b56fd9b4🍎
Tree-SHA512: fb9150807b7ebb248e8f4fe7b16e5179251e7be9336459287787f27e542583d73d937e6969667fd836378b676bb9be7f66756dc1abca8a01364bc9ee3e3720a5
* Range-for avoids ++i/i++ debate and decreases linecount.
* seen_multipath is only used if multipath_segment_index hasn't already been set. Rename it to seen_substitutes to better describe what it does, now that the context implies its involved in multipath.
57d8b1f1b3 cmake: Avoid fuzzer "multiple definition of `main'" errors (Ryan Ofsky)
Pull request description:
This change builds libraries with `-fsanitize=fuzzer-no-link` instead of `-fsanitize=fuzzer` when the cmake `-DSANITIZERS=fuzzer` option is specified. This is necessary to make fuzzing and IPC cmake options compatible with each other and avoid CI failures in #30975 which enables IPC in the fuzzer CI build:
https://cirrus-ci.com/task/5366255504326656?logs=ci#L2817https://cirrus-ci.com/task/5233064575500288?logs=ci#L2384
The failures can also be reproduced by checking out #31741 and building with `cmake -B build -DBUILD_FOR_FUZZING=ON -DSANITIZERS=fuzzer -DENABLE_IPC=ON` with this fix reverted.
The fix updates the cmake build so when `-DSANITIZERS=fuzzer` is specified, the fuzz test binary is built with `-fsanitize=fuzzer` (so it can use libFuzzer's main function), and libraries are built with `-fsanitize=fuzzer-no-link` (so they can be linked into other executables with their own main functions).
Previously when `-DSANITIZERS=fuzzer` was specified, `-fsanitize=fuzzer` was applied to ALL libraries and executables. This was inappropriate because it made it impossible to build any executables other than the fuzz test executable without triggering link errors:
- `` multiple definition of `main' ``
- `` "undefined reference to `LLVMFuzzerTestOneInput' ``
if they depended on any libraries instrumented for fuzzing.
This was especially a problem when the `ENABLE_IPC` option was set because it made building the `mpgen` code generator impossible so nothing else that depended on generated sources, including the fuzz test binary, could be built either.
This commit was previously part of https://github.com/bitcoin/bitcoin/pull/31741 and had some discussion there starting in https://github.com/bitcoin/bitcoin/pull/31741#pullrequestreview-2619682385
---
This PR is part of the [process separation project](https://github.com/bitcoin/bitcoin/issues/28722).
ACKs for top commit:
hebasto:
ACK 57d8b1f1b3, tested on Ubuntu 24.04.
Tree-SHA512: 4011adbc0b08742e83cf7c0560d3d5b5694a863358e6ac9a21239626b4a8fedceca66db34b5a46136a7b26849bb1d8710c894689322ae97e1c407687c3f57d50
ae6b6ea296 wallet: remove redundant `Assert` call when block is disconnected (rkrux)
Pull request description:
It was highlighted in a PR discussion previously that the recently moved `Assert` macro call inside the block disconnected loop had been redundant for quite a while because of the presence of the `assert` macro call at the start of the function. Therefore, it is removed now.
refs #https://github.com/bitcoin/bitcoin/pull/31757#discussion_r1995416821
ACKs for top commit:
fjahr:
utACK ae6b6ea296
l0rinc:
crACK ae6b6ea296
hodlinator:
Code Review ACK ae6b6ea296
Prabhat1308:
Code Review ACK [`ae6b6ea`](ae6b6ea296)
Tree-SHA512: 6bbced88f4b39afcacefb7babe97c180a397d9cd55f18c4c2875bd594547dcdccb2059ac32495e0e8d4e7263b4c1349ca80b2f0fbd46b4450d1d847ba5abd903
d065208f0f test: get rid of redundant TODO tag (Chandra Pratap)
Pull request description:
The `FEE` parameter in `test/functional/feature_dbcrash.py::generate_small_transaction()` is not a fee rate, but an absolute fee. Hence, it doesn't make sense to replace it with node relay based fee calculation. Get rid of the TODO comment suggesting otherwise.
ACKs for top commit:
maflcko:
lgtm ACK d065208f0f
Tree-SHA512: f2b7f51ffb23de8e14ca071edd731410176a20750115a65db0ae67714389e03ffe1593ce88368e96d211329bd93c772f665de7c3a59b932681bc5b80db908d9f
This abstracts out the finding of the connected component that includes
a given element from FindConnectedComponent (which just finds any connected
component).
Use this in the txgraph fuzz test, which was effectively reimplementing this
logic. At the same time, improve its performance by replacing a vector with a
set.
