Merge bitcoin/bitcoin#31161: cmake: Set top-level target output locations

568fcdddae scripted-diff: Adjust documentation per top-level target output location (Hennadii Stepanov)
026bb226e9 cmake: Set top-level target output locations (Hennadii Stepanov)

Pull request description:

  This PR sets the target output locations to the `bin` and `lib` subdirectories within the build tree, creating a directory structure that mirrors that of the installed targets.

  This approach is widely adopted by the large projects, such as [LLVM](e146c1867e/lldb/cmake/modules/LLDBStandalone.cmake (L128-L130)):
  ```cmake
  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
  ```

  The `libsecp256k1` project has also recently [adopted](https://github.com/bitcoin-core/secp256k1/pull/1553) this approach.

  With this PR, all binaries are conveniently located. For example, run:
  ```
  $ ./build/bin/fuzz
  ```
  instead of:
  ```
  $ ./build/src/test/fuzz/fuzz
  ```

  On Windows, all required DLLs are now located in the same directory as the executables, allowing to run `bitcoin-chainstate.exe` (which loads `bitcoinkernel.dll`) without the need to copy DLLs or modify the `PATH` variable.

  The idea was briefly discussed among the build team during the recent CoreDev meeting.

  ---

  **Warning**: This PR changes build locations of newly built executables like `bitcoind` and `test_bitcoin` from `src/` to `bin/` without deleting previously built executables. A clean build is recommended to avoid accidentally running old binaries.

ACKs for top commit:
  theStack:
    Light re-ACK 568fcdddae
  ryanofsky:
    Code review ACK 568fcdddae. Only change since last review was rebasing. I'm ok with this PR in its current form if other developers are happy with it. I just personally think it is inappropriate to \*silently\* break an everyday developer workflow like `git pull; make bitcoind`. I wouldn't have a problem with this PR if it triggered an explicit error, or if the problem was limited to less common workflows like changing cmake options in an existing build.
  TheCharlatan:
    Re-ACK 568fcdddae
  theuni:
    ACK 568fcdddae

Tree-SHA512: 1aa5ecd3cd49bd82f1dcc96c8e171d2d19c58aec8dade4bc329df89311f9e50cbf6cf021d004c58a0e1016c375b0fa348ccd52761bcdd179c2d1e61c105e3b9f
This commit is contained in:
merge-script
2025-03-12 11:19:00 +08:00
27 changed files with 164 additions and 145 deletions

View File

@@ -21,8 +21,8 @@ make -C depends NO_QT=1 MULTIPROCESS=1
HOST_PLATFORM="x86_64-pc-linux-gnu"
cmake -B build --toolchain=depends/$HOST_PLATFORM/toolchain.cmake
cmake --build build
build/src/bitcoin-node -regtest -printtoconsole -debug=ipc
BITCOIND=$(pwd)/build/src/bitcoin-node build/test/functional/test_runner.py
build/bin/bitcoin-node -regtest -printtoconsole -debug=ipc
BITCOIND=$(pwd)/build/bin/bitcoin-node build/test/functional/test_runner.py
```
The `cmake` build will pick up settings and library locations from the depends directory, so there is no need to pass `-DWITH_MULTIPROCESS=ON` as a separate flag when using the depends system (it's controlled by the `MULTIPROCESS=1` option).