9cf746d663 cmake: add optional source files to crc32c directly (Daniel Pfeifer)
9c7823c5b5 cmake: add optional source files to bitcoin_crypto directly (Daniel Pfeifer)
Pull request description:
Avoid having many static libraries by adding the optional sources to the target `bitcoin_crypto` directly.
Set the necessary compile options at the source file level, rather than the target level.
fixes: #31697
ACKs for top commit:
s373nZ:
ACK 9cf746d663
hebasto:
re-ACK 9cf746d663.
TheCharlatan:
ACK 9cf746d663
Tree-SHA512: 04b468ccbd284d63fc83b382177bb8183b325369835c3b92e555e159955c73d71712a63a2e556f8da68a1232ac07d3845e11f1057c50666843db91db98fca979
81c174e318 cmake: Refer to the configure log instead of printing PIE test error (Hennadii Stepanov)
65a0920ca6 cmake: Add `CheckLinkerSupportsPIE` module (Hennadii Stepanov)
Pull request description:
This new module is a wrapper around CMake's `CheckPIESupported` module that fixes an upstream bug.
See: https://gitlab.kitware.com/cmake/cmake/-/issues/26463.
Fixes https://github.com/bitcoin/bitcoin/issues/30771.
ACKs for top commit:
theuni:
utACK 81c174e318.
vasild:
ACK 81c174e318
Tree-SHA512: 77d7022238551a4e69c59d1fe6b78975bb552cbbed5339459853d7ebf0086813036081f464fed230be330b3bd7d6cf8590b536b064028d2f786d6ae40f342f95
9b033bebb1 cmake: rename Kernel component to bitcoinkernel for consistency (Cory Fields)
2e0c92558e cmake: add and use install_binary_component (Cory Fields)
0264c5d86c cmake: use per-target components for bitcoin-qt and bitcoin-gui (Cory Fields)
fb0546b1c5 ci: don't try to install for a fuzz build (Cory Fields)
Pull request description:
This makes it possible to build/install only the desired binaries regardless of the configuration.
For consistency, the component names match the binary names. `Kernel` and `GUI` have been renamed.
Additionally it fixes#31762 by installing only the manpages for the configured targets (and includes them in the component installs for each).
Also fixes#31745.
Alternative to #31765 which is (imo) more correct/thorough.
Can be tested using (for ex):
```bash
$ cmake -B build
$ cmake --build build -t bitcoind -t bitcoin-cli
$ cmake --install build --component bitcoind
$ cmake --install build --component bitcoin-cli
```
ACKs for top commit:
hebasto:
ACK 9b033bebb1.
TheCharlatan:
Re-ACK 9b033bebb1
stickies-v:
re-ACK 9b033bebb1
Tree-SHA512: fd4818e76f190dbeafbf0c246b466f829771902c9d6d7111ed917093b811c8a5536a4a45e20708f73e7f581d6cb77c8e61cfa69e065788dcf0886792f553a355
e3c0152769 cmake: Copy `cov_tool_wrapper.sh.in` to the build tree (Hennadii Stepanov)
Pull request description:
This PR ensures that `cov_tool_wrapper.sh.in` is available when invoking the `Coverage.cmake` script from any directory.
Here is an example of usage on Ubuntu 24.10 with the default GCC 14.2.0:
```
$ cmake -B build -DCMAKE_BUILD_TYPE=Coverage -DCMAKE_CXX_FLAGS="-fprofile-update=atomic" -DCMAKE_C_FLAGS="-fprofile-update=atomic"
$ cmake --build build -j $(nproc)
$ cd ..
$ cmake -DJOBS=$(nproc) -DLCOV_OPTS="--ignore-errors inconsistent,inconsistent" -P bitcoin/build/Coverage.cmake
```
Fixes https://github.com/bitcoin/bitcoin/issues/31638.
ACKs for top commit:
theuni:
utACK e3c0152769
Tree-SHA512: ccfc8e893567f199d9b05ea3916cac06fca89c5892cc7492d5251c331c35408222fd918ed08017515e2dfca10970ae3f633b3917bfb7037db539559e71d7f711
12fa9511b5 build: simplify dependency graph (Cory Fields)
c4e498300c build: avoid unnecessary dependencies on generated headers (Cory Fields)
Pull request description:
These changes speed up my build (default config/options/targets) by roughly 10%. I suspect the difference may be more significant in other build configs.
Before:
> $ time cmake --build build -j24
> real3m26.932s
After:
> $ time cmake --build build -j24
> real3m7.556s
Generally they allow for jobservers (either `make -jX` or `ninja`) to be better utilized. This can be verified using `top` while building and looking at the number of compiles running at any given time before/after these changes. Before, it's easy to observe periods of stalling when only one or two compiles are happening. After these changes, the compiler process count should mostly match the number of jobs given (`-jX`) until it falls off at the end.
---
The first commit sets [DEPENDS_EXPLICIT_ONLY](https://cmake.org/cmake/help/latest/command/add_custom_command.html#command:add_custom_command) for commands which generate our test header files. Without this option, `test_bitcoin`'s generated headers won't be built until all of its other dependencies have been built. This introduces a significant stall in the build, though currently only Ninja benefits from this being set, and only CMake >= 3.27 understands it.
Example from a generated `build.ninja`:
Before:
> \# Custom command for src/test/data/base58_encode_decode.json.h
>
> build src/test/data/base58_encode_decode.json.h | ${cmake_ninja_workdir}src/test/data/base58_encode_decode.json.h: CUSTOM_COMMAND /home/cory/dev/bitcoin/src/test/data/base58_encode_decode.json /home/cory/dev/bitcoin/cmake/script/GenerateHeaderFromJson.cmake || libcrc32c.a libcrc32c_sse42.a libleveldb.a libminisketch.a minisketch_clmul src/bitcoin_clientversion src/crypto/libbitcoin_crypto.a src/crypto/libbitcoin_crypto_avx2.a src/crypto/libbitcoin_crypto_sse41.a src/crypto/libbitcoin_crypto_x86_shani.a src/generate_build_info src/libbitcoin_cli.a src/libbitcoin_common.a src/libbitcoin_consensus.a src/libbitcoin_node.a src/secp256k1/src/libsecp256k1.a src/secp256k1/src/secp256k1_precomputed src/test/util/libtest_util.a src/univalue/libunivalue.a src/util/libbitcoin_util.a src/wallet/libbitcoin_wallet.a src/zmq/libbitcoin_zmq.a
After:
> \# Custom command for src/test/data/base58_encode_decode.json.h
>
> build src/test/data/base58_encode_decode.json.h | ${cmake_ninja_workdir}src/test/data/base58_encode_decode.json.h: CUSTOM_COMMAND /home/cory/dev/bitcoin/src/test/data/base58_encode_decode.json /home/cory/dev/bitcoin/cmake/script/GenerateHeaderFromJson.cmake
---
The second commit is more significant. It sets [CMAKE_OPTIMIZE_DEPENDENCIES](https://cmake.org/cmake/help/latest/prop_tgt/OPTIMIZE_DEPENDENCIES.html) globally, which allows the objects of static libs to be built in parallel when one lib depends on the other. This can be set as a per-lib property, ~but I don't see any need for that as we don't currently have any edge-cases where this wouldn't be ok. If those should arise, we could always disable on a per-lib basis~.
Edit: turns out this triggers an [upstream bug](https://gitlab.kitware.com/cmake/cmake/-/issues/24058), which I guess can be considered an edge-case until fixed in CMake. I've added 2 per-lib opt-outs as a result.
Example:
Before:
> \# Link the static library src/libbitcoin_cli.a
>
> build src/libbitcoin_cli.a: CXX_STATIC_LIBRARY_LINKER__bitcoin_cli_RelWithDebInfo src/CMakeFiles/bitcoin_cli.dir/compat/stdin.cpp.o src/CMakeFiles/bitcoin_cli.dir/rpc/client.cpp.o || src/univalue/libunivalue.a
After:
> \# Link the static library src/libbitcoin_cli.a
>
> build src/libbitcoin_cli.a: CXX_STATIC_LIBRARY_LINKER__bitcoin_cli_RelWithDebInfo src/CMakeFiles/bitcoin_cli.dir/compat/stdin.cpp.o src/CMakeFiles/bitcoin_cli.dir/rpc/client.cpp.o
>
ACKs for top commit:
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utACK 12fa9511b5
hebasto:
ACK 12fa9511b5.
Tree-SHA512: f85f507e70cdc06acd07542161d9f9b8edf9ba866f08c8ef17aaaed770fa11530a27521c4413456d863463a6e77d4d6983fa623a64e17bbd602c2bc70aacc112
56a9b847bb build: set build type and per-build-type flags as early as possible (Cory Fields)
f605f7a9c2 build: refactor: set debug definitions in main CMakeLists (Cory Fields)
Pull request description:
This ensures that most compiler tests are not run with the wrong build type's flags. The initial c++ checks are an exception to that because many internal CMake variables are unset until a language is selected, so it's problematic to change our build type before that.
The difference can be seen in `build/CMakeFiles/CMakeConfigureLog.yaml`. Before, `Debug` was used for many of the earlly checks. After this PR, it's only the first 2 checks.
ACKs for top commit:
hebasto:
ACK 56a9b847bb.
Tree-SHA512: 87947352d6d4fd08554515822cb13634ed3be33fcda2af817c22ef943b1d0856ceb39311ddc01b8221397528fdc09f630dc7e74fc92f5a4a073f09c4ae493596
With the exception of the first c++ checks, this ensures that compiler tests
are never run with the wrong build type's flags.
Co-Authored-By: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
These scripts are becoming more of nuisance, than a value-add;
particularly since we've been building releases using Guix. Adding new
(release bin) tests can be harder, because it requires constructing a
failing test, which is becoming less easy e.g trying to disable a
feature or protection that has been built into the compiler/toolchain by
default.
In the pre-Guix days, these were valuable to sanity-check the environment,
because we were pulling that pre-built from Ubuntu, with little control.
At this point, it's less clear what these scripts are (sanity) checking.
Note that these also weren't completely ported to CMake (#31698), see
also #31715 which contains other fixes that would be needed for these
test-tests, to accomodate future changes.
This prevents the generation of these headers from also depending on the
dependencies of the libs/binaries which consume them.
Specifically, this prevents generated test headers (such as
test/data/base58_encode_decode.json.h) from depending on the
dependencies of test_bitcoin (libcrc32c.a libcrc32c_sse42.a libleveldb.a)
Note that this is currently only relevant for Ninja.
For more detail, see:
https://cmake.org/cmake/help/latest/command/add_custom_command.html
Use character literals instead of integer hex values (i.e. `'\x5b','\x0a', ...` instead of `0x5b, 0x0a, ...`) for generated headers.
This avoids C++11 narrowing warnings in a more concise way than using explicit char casts.
Extra whitespace is also removed between elements for brevity.
