8f1ff487b3df6f3e4cb53f88045a32ea4fbc0839 libxcb: use a patch instead of sed (fanquake)
Pull request description:
To remove the unneeded pthread-stubs requirement.
Should almost be enough to close#16838.
seds dead (mostly). The usage left in `qt.mk` are for substituting runtime values.
ACKs for top commit:
hebasto:
ACK 8f1ff487b3df6f3e4cb53f88045a32ea4fbc0839.
Tree-SHA512: 2b6ebbe98a838d8e08e54737292b02176ff4c85a541ae1ec0c590c75e33ba92289628b88ca3144f2e214f4327515f7fd22c39687312f44183b759815c092b24f
3fe58a98d3406fc62f6dbbd8c0d58caefc69c9ae tidy: run clang-tidy in quiet mode (fanquake)
Pull request description:
This should cut the amount of output by atleast half.
```bash
/opt/homebrew/opt/llvm/bin/clang-tidy --use-color -p=bitcoin bitcoin/src/wallet/test/fuzz/coinselection.cpp
278 warnings generated.
Suppressed 278 warnings (278 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
```
becomes
```bash
/opt/homebrew/opt/llvm/bin/clang-tidy --use-color -p=/bitcoin -quiet bitcoin/src/wallet/test/fuzz/coinselection.cpp
278 warnings generated.
```
See https://clang.llvm.org/extra/clang-tidy/.
> --quiet
> Run clang-tidy in quiet mode. This suppresses
> printing statistics about ignored warnings and
> warnings treated as errors if the respective
> options are specified.
However the `run-clang-tidy` option is `-quiet`. See f28c006a58/clang-tools-extra/clang-tidy/tool/run-clang-tidy.py (L244).
ACKs for top commit:
jamesob:
ACK 3fe58a98d3
Tree-SHA512: 936cfab09a78e71a4a2a2b3539087c1a95fe279923cc8c3f950c70924d6920dcd54b0da8b5493a1337c23a3b25834ab0db5a6b0c660c6e46d750f0fc966e7625
- make the code easier to read and understand
- improve performance by avoiding unnecessary move operations
- the cleaner, simpler, and easier to read the code is, the
better chance the compiler has at implementing it well
as the classes themselves are private, and to be consistent within all the
*Impl classes in src/node/interfaces.cpp and src/wallet/interfaces.cpp
following this order:
public:
// ... virtual methods ...
// ... nonvirtual helper methods ...
// ... data members ...
and add documentation in src/node/interfaces.cpp and src/wallet/interfaces.cpp
to help future reviewers and contributors.
In AvailableCoins, we need to know whether we can solve for an output.
This was done by using IsSolvable, which just calls ProduceSignature and
produces a dummy signature. However, we already do that in order to get
the size of the input by using CalculateMaximumSignedInputSize. As this
function returns -1 if ProduceSignature fails, we can just remove the
use of IsSolvable and check that input_bytes is not -1 to determine
the solvability of an output.
dd065dae9fcebd6806ff67703ffa8128e80b97cc refactor: Make mapBlocksUnknownParent local, and rename it (Hennadii Stepanov)
Pull request description:
This PR is a second attempt at #19594. This PR has two motivations:
- Improve code hygiene by eliminating a global variable, `mapBlocksUnknownParent`
- Fix fuzz test OOM when running too long ([see #19594 comment](https://github.com/bitcoin/bitcoin/pull/19594#issuecomment-958801638))
A minor added advantage is to release `mapBlocksUnknownParent` memory when the reindexing phase is done. The current situation is somewhat similar to a memory leak because this map exists unused for the remaining lifetime of the process. It's true that this map should be empty of data elements after use, but its internal metadata (indexing structures, etc.) can have non-trivial size because there can be many thousands of simultaneous elements in this map.
This PR helps our efforts to reduce the use of global variables. This variable isn't just global, it's hidden inside a function (it looks like a local variable but has the `static` attribute).
This global variable exists because the `-reindex` processing code calls `LoadExternalBlockFile()` multiple times (once for each block file), but that function must preserve some state between calls (the `mapBlocksUnknownParent` map). This PR fixes this by allocating this map as a local variable in the caller's scope and passing it in on each call. When reindexing completes, the map goes out of scope and is deallocated.
I tested this manually by reindexing on mainnet and signet. Also, the existing `feature_reindex.py` functional test passes.
ACKs for top commit:
mzumsande:
re-ACK dd065dae9fcebd6806ff67703ffa8128e80b97cc
theStack:
re-ACK dd065dae9fcebd6806ff67703ffa8128e80b97cc
shaavan:
reACK dd065dae9fcebd6806ff67703ffa8128e80b97cc
Tree-SHA512: 9cd20e44d2fa1096dd405bc107bc065ea8f904f5b3f63080341b08d8cf57b790df565f58815c2f331377d044d5306708b4bf6bdfc5ef8d0ed85d8e97d744732c
b4b657ba57a2ce31b3c21ea9245aad26d5b06a57 refactor: log `nEvicted` message in `LimitOrphans` then return void (chinggg)
Pull request description:
Fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=49347
LimitOrphans() can log expired tx and it should log evicted tx as well instead of returning the `nEvicted` number for caller to print the message.
Since `LimitOrphans()` now returns void, the redundant assertion check in fuzz test is also removed.
Top commit has no ACKs.
Tree-SHA512: 18c41702321b0e59812590cd389f3163831d431f4ebdc3b3e1e0698496a6bdbac52288f28f779237a58813c6717da1a35e8933d509822978ff726c1b13cfc778
22f1e4a02f Merge bitcoin-core/leveldb-subtree#32: fix macro HAVE_O_CLOEXEC when O_CLOEXEC not found
1eeb1cb879 fix macro HAVE_O_CLOEXEC when O_CLOEXEC not found
git-subtree-dir: src/leveldb
git-subtree-split: 22f1e4a02fd8e96090bb699a04c95c784aa88e74
Use lto.h from clang+llvm not libtapi. The later is older,
and comes bundled with the libtapi repo.
Copy libLTO.so when building with FORCE_USE_SYSTEM_CLANG.
71d1d13627ccd27319f347e2d8167c8fe8a433f4 test: add unit test for AvailableCoins (josibake)
da03cb41a4ce15ebceee7fa4a4fdd2d3602fe284 test: functional test for new coin selection logic (josibake)
438e04845bf3302b7f459a50e88a1b772527f1e6 wallet: run coin selection by `OutputType` (josibake)
77b07072061c59f50c69be29fbcddf0d433e1077 refactor: use CoinsResult struct in SelectCoins (josibake)
2e67291ca3ab2d8f498fa910738ca655fde11c5e refactor: store by OutputType in CoinsResult (josibake)
Pull request description:
# Concept
Following https://github.com/bitcoin/bitcoin/pull/23789, Bitcoin Core wallet will now generate a change address that matches the payment address type. This improves privacy by not revealing which of the outputs is the change at the time of the transaction in scenarios where the input address types differ from the payment address type. However, information about the change can be leaked in a later transaction. This proposal attempts to address that concern.
## Leaking information in a later transaction
Consider the following scenario:

1. Alice has a wallet with bech32 type UTXOs and pays Bob, who gives her a P2SH address
2. Alice's wallet generates a P2SH change output, preserving her privacy in `txid: a`
3. Alice then pays Carol, who gives her a bech32 address
4. Alice's wallet combines the P2SH UTXO with a bech32 UTXO and `txid: b` has two bech32 outputs
From a chain analysis perspective, it is reasonable to infer that the P2SH input in `txid: b` was the change from `txid: a`. To avoid leaking information in this scenario, Alice's wallet should avoid picking the P2SH output and instead fund the transaction with only bech32 Outputs. If the payment to Carol can be funded with just the P2SH output, it should be preferred over the bech32 outputs as this will convert the P2SH UTXO to bech32 UTXOs via the payment and change outputs of the new transaction.
**TLDR;** Avoid mixing output types, spend non-default `OutputTypes` when it is economical to do so.
# Approach
`AvailableCoins` now populates a struct, which makes it easier to access coins by `OutputType`. Coin selection tries to find a funding solution by each output type and chooses the most economical by waste metric. If a solution can't be found without mixing, coin selection runs over the entire wallet, allowing mixing, which is the same as the current behavior.
I've also added a functional test (`test/functional/wallet_avoid_mixing_output_types.py`) and unit test (`src/wallet/test/availablecoins_tests.cpp`.
ACKs for top commit:
achow101:
re-ACK 71d1d13627ccd27319f347e2d8167c8fe8a433f4
aureleoules:
ACK 71d1d13627ccd27319f347e2d8167c8fe8a433f4.
Xekyo:
reACK 71d1d13627ccd27319f347e2d8167c8fe8a433f4 via `git range-diff master 6530d19 71d1d13`
LarryRuane:
ACK 71d1d13627ccd27319f347e2d8167c8fe8a433f4
Tree-SHA512: 2e0716efdae5adf5479446fabc731ae81d595131d3b8bade98b64ba323d0e0c6d964a67f8c14c89c428998bda47993fa924f3cfca1529e2bd49eaa4e31b7e426
4e616d20c9e92b5118a07d4a4b8562fffc66e767 test: check that combining PSBTs with different txs fails (Sebastian Falbesoner)
2a428c79897761579efc990aaf810b0eb3e572b6 test: support passing PSBTMaps directly to PSBT ctor (Sebastian Falbesoner)
Pull request description:
This PR adds missing test coverage for the `combinepsbt` RPC, in the case of combining two PSBTs with different transactions:
b8067cd435/src/psbt.cpp (L24-L27)
The calling function `CombinePSBTs` checks for the false return value and then returns the transaction error string `PSBT_MISMATCH`:
b8067cd435/src/psbt.cpp (L433-L435)b8067cd435/src/util/error.cpp (L30-L31)
ACKs for top commit:
instagibbs:
reACK 4e616d20c9
achow101:
ACK 4e616d20c9e92b5118a07d4a4b8562fffc66e767
Tree-SHA512: 45b2b224b13b44ad69ae62e4bc20f74cab32770cf8127b026ec47a7520f7253148fdbf1fad612afece59e45a6738bef9a351ae87ea98dc83d095cc78f6db0318
c320cddb1b57a9c9911054fc440f7a12aaea61b5 [unit tests] individual RBF Rules in isolation (glozow)
Pull request description:
Test each RBF rule more thoroughly and in isolation so we're not relying on things like overall mempool acceptance logic, ordering of mempool checks, RPC results, etc.
RBF was pretty recently refactored out, so there isn't much unit test coverage. From https://marcofalke.github.io/btc_cov/test_bitcoin.coverage/src/policy/rbf.cpp.gcov.html:

ACKs for top commit:
instagibbs:
reACK c320cddb1b
jonatack:
ACK c320cddb1b57a9c9911054fc440f7a12aaea61b5
w0xlt:
ACK c320cddb1b
Tree-SHA512: dab555214496255801b9ea92b7bf708bba1ff23edf055c85e29be5eab7d7a863440ee19588aacdce54b2c03feaa4b5963eb159ed89473560bd228737cbfec160
Pass `--enable-default-pie` and `--enable-default-ssp` when configuring
our GCCs. This achieves the following:
--enable-default-pie
Turn on -fPIE and -pie by default.
--enable-default-ssp
Turn on -fstack-protector-strong by default.
Note that this isn't a replacement for passing hardneing flags
ourselves, but introduces some redundency, and there isn't really a
reason to not build a more "hardenings enabled" toolchain by default.
See also:
https://gcc.gnu.org/install/configure.html
Both glibcs we build support `--enable-bind-now`:
Disable lazy binding for installed shared objects and programs.
This provides additional security hardening because it enables full RELRO
and a read-only global offset table (GOT), at the cost of slightly
increased program load times.
See:
https://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html
Pass `--enable-stack-protector=all` when building the glibc used for the
RISC-V toolchain, to enable stack smashing protection on all functions,
in the glibc code.
Test each component of the RBF policy in isolation. Unlike the RBF
functional tests, these do not rely on things like RPC results, mempool
submission, etc.
ba9a8e6cc1d1e9746f74e8c75af5c6c0a49f25c3 test: Drop unused boost workaround (Hennadii Stepanov)
Pull request description:
This PR is a follow up of bitcoin/bitcoin#24065 and removes the workaround which has already been removed in other [places](https://github.com/bitcoin/bitcoin/pull/24065/files#diff-19427b0dd1a791adc728c82e88f267751ba4f1c751e19262cac03cccd2822216).
Moreover, this workaround won't be required even if bitcoin/bitcoin#25696 is ever merged.
ACKs for top commit:
fanquake:
ACK ba9a8e6cc1d1e9746f74e8c75af5c6c0a49f25c3
Tree-SHA512: db19fc1550252d7a82a08f388ff6078c78452365e74b41e7bc36cbbc4d0fed9342636e8f2371bb8e78c9d11ee721d6363bcc21d11787f3aac967a6c4a9cc346f
`LimitOrphans()` can log expired tx and it should log evicted tx as well
instead of returning the number for caller to print the message.
Since `LimitOrphans()` now return void, the redundant assertion check in
fuzz test is also removed.
e838a9847580527b8321d65e57b1c53cc2af6bf4 depends: re-enable using -flto when building expat (fanquake)
304452558c7f6f5e32ba13d8f05325790c8a4f5f depends: expat 2.4.8 (fanquake)
Pull request description:
Currently, when building the expat package in depends, using `-flto` (`LTO=1`), the configure check can fail, because it cannot determine the system endianess:
```bash
configure:18718: result: unknown
configure:18733: error: unknown endianness
presetting ac_cv_c_bigendian=no (or yes) will help
```
Fix that by defining `_DEFAULT_SOURCE`, which in turn defines `__USE_MISC` (`features.h`):
```c
#if defined _DEFAULT_SOURCE
# define __USE_MISC1
#endif
```
which exposes additional definitions in `endian.h`:
```c
#include <features.h>
/* Get the definitions of __*_ENDIAN, __BYTE_ORDER, and __FLOAT_WORD_ORDER. */
#include <bits/endian.h>
#ifdef __USE_MISC
# define LITTLE_ENDIAN__LITTLE_ENDIAN
# define BIG_ENDIAN__BIG_ENDIAN
# define PDP_ENDIAN__PDP_ENDIAN
# define BYTE_ORDER__BYTE_ORDER
#endif
```
and gives us a working configure.
You could test building this change with Guix + LTO with [this branch](https://github.com/fanquake/bitcoin/tree/lto_in_guix). Note that that build may fail for other reasons (on x86_64), unrelated to this change.
Some related upstream discussion:
https://bugs.gentoo.org/757681https://forums.gentoo.org/viewtopic-t-1013786.html
ACKs for top commit:
hebasto:
re-ACK e838a9847580527b8321d65e57b1c53cc2af6bf4, only [suggested](https://github.com/bitcoin/bitcoin/pull/25697#discussion_r929735675) changes since my recent [review](https://github.com/bitcoin/bitcoin/pull/25697#pullrequestreview-1050657421).
jarolrod:
code review ACK e838a9847580527b8321d65e57b1c53cc2af6bf4
Tree-SHA512: 9dbf64c9bd1fd995a4d1addc011ffeff83d50df736030012346c97605e63aed4b5bac390a81abe646c1be28ad6fd600f64560dcb26bbc2edf5d513ca3b180bfa
fa74e726c414f5f7a1e63126a69463491f66e0ec refactor: Make FEELER_SLEEP_WINDOW type safe (std::chrono) (MacroFake)
fa3b3cb9b5d944d34b1d5ac3e102ac333482a475 Expose underlying clock in CThreadInterrupt (MacroFake)
Pull request description:
This gets rid of the `value*1000` manual conversion.
ACKs for top commit:
naumenkogs:
utACK fa74e726c414f5f7a1e63126a69463491f66e0ec
dergoegge:
Code review ACK fa74e726c414f5f7a1e63126a69463491f66e0ec
Tree-SHA512: 90409c05c25f0dd2f1c4dead78f707ebfd78b7d84ea4db9fcefd9c4958a1a3338ac657cd9e99eb8b47d52d4485fa3c947dce4ee1559fb56ae65878685e1ed9a3
fa2247a9f9754d90ea60f254f6c0ed881c55772b refactor: Make CTransaction constructor explicit (MacroFake)
Pull request description:
It involves calculating two hashes, so the performance impact should be
made explicit.
Also, add the module to iwyu.
ACKs for top commit:
aureleoules:
ACK fa2247a9f9754d90ea60f254f6c0ed881c55772b.
hebasto:
ACK fa2247a9f9754d90ea60f254f6c0ed881c55772b, I have reviewed the code and it looks OK, I agree it can be merged.
Tree-SHA512: e236c352a472c7edfd4f0319a5a16a59f627b0ab7eb8531b53c75d730a3fa3e990a939978dcd952cd73e647925fc79bfa6d9fd87624bbc3ef180f40f95acef19
The counter is an optimization over calling `ret.empty()`. It was
suggested that the compiler would realize `cnt` is only `0` on the first
iteration, and not actually emit the check and conditional.
This optimization was actually not triggered at all, since we
incremented `cnt` at the beginning of the first iteration. Fix it by
incrementing at the end instead.
This was reported by Github user "Janus".
fa57c449cf45a4f1df195970c711bba8f02f3cc6 fuzz: Remove no-op SetMempoolConstraints (MacroFake)
Pull request description:
Now that the mempool no longer uses the args manager (after commit e4e201dfd9a9dbd8e22cac688dbbde16234cd937), there is no point setting the mempool limits after it is constructed.
Fix that by setting them once right before the mempool is constructed.
ACKs for top commit:
dongcarl:
utACK fa57c449cf45a4f1df195970c711bba8f02f3cc6
glozow:
utACK fa57c449cf45a4f1df195970c711bba8f02f3cc6
Tree-SHA512: d236f9cdcee8c2076272b82c97f8a5942f1ecf119ab36edafd42088ef97554592348a61e1fbe504fd52b30301ef0177813042599ad12e8cb95b4a20586c85bb0
fa28d0f3c3fe528dae7fd6dc7725219b9bdf0e1b scripted-diff: Replace NullUniValue with UniValue::VNULL (MacroFake)
fa962103e8eb0b078b83943a21831be39e7716c9 fuzz: refactor: Replace NullUniValue with UniValue{} (MacroFake)
Pull request description:
This refactor is needed to disable the (potentially expensive for large json) UniValue copy constructors.
ACKs for top commit:
fanquake:
ACK fa28d0f3c3fe528dae7fd6dc7725219b9bdf0e1b
Tree-SHA512: 7d4204cce0a6fc4ecda96973de77d15b7e4c7caa3e0e890e1f5b9a4b9ace8b240b1f7565d6ab586e168a5fa1201b6c60a924868ef34d6abfbfd8ab7f0f99fbc7
850b0850ccacc4e4f7e82ce2291a111132eae756 fix comment spellings from the codespell lint (Greg Weber)
Pull request description:
test/lint/all-lint.py includes the codespell lint
ACKs for top commit:
aureleoules:
ACK 850b0850ccacc4e4f7e82ce2291a111132eae756.
Tree-SHA512: bf63690da2652886e705d6594903bab67ff0f35a0e5a5505f063827f5148ebce47681e541cbe0e52396baf1addb25d9fe50e5faa9176456f579a7cd2f1321c44
If we don't set this explicitly, then qt will still use it's default
windows ar, when building with LTO (when we want it to use gcc-ar).
So set `QMAKE_LIB` which is used for win32, and defaults to `ar -rc`.
This way we always get the correct ar.
Issue can be seen building in Guix with LTO. i.e:
```bash
x86_64-w64-mingw32-ar: .obj/release/hb-blob.o: plugin needed to handle lto object
```
4fa79837ad19fada3a3df3fb490617f6ca4606e0 psbt: Fix unsigned integer overflow (Aurèle Oulès)
Pull request description:
Fixes#25692.
This change prevents an unsigned integer overflow during the deserialization of a PSBT.
ACKs for top commit:
achow101:
ACK 4fa79837ad19fada3a3df3fb490617f6ca4606e0
Tree-SHA512: 0863d4d31ada1ba50632b6a66cb4c694c0a15680a90cf9370129cf3db15e3c10e65610b779db047d5a4cc7c920708b728948708e4023e916099c6bfe730f01f9