ci: enable multiprocess for non-depends jobs

It's left disabled for the test each commit job.

The bitcoin-node binary is built on all platforms which have
multiprocess enabled, but for functional tests it's only used in
the macOS native job.

TODO:
* ASAN

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ env:
 
 jobs:
   test-each-commit:
-    name: 'test each commit'
+    name: 'test each commit (no multiprocess)'
     runs-on: ubuntu-24.04
     if: github.event_name == 'pull_request' && github.event.pull_request.commits != 1
     timeout-minutes: 360  # Use maximum time, see https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idtimeout-minutes. Assuming a worst case time of 1 hour per commit, this leads to a --max-count=6 below.
@@ -72,7 +72,7 @@ jobs:
         run: |
           # Run tests on commits after the last merge commit and before the PR head commit
           # Use clang++, because it is a bit faster and uses less memory than g++
-          git rebase --exec "echo Running test-one-commit on \$( git log -1 ) && CC=clang CXX=clang++ cmake -B build -DWERROR=ON -DWITH_ZMQ=ON -DBUILD_GUI=ON -DBUILD_BENCH=ON -DBUILD_FUZZ_BINARY=ON -DWITH_BDB=ON -DWITH_USDT=ON -DCMAKE_CXX_FLAGS='-Wno-error=unused-member-function' && cmake --build build -j $(nproc) && ctest --output-on-failure --stop-on-failure --test-dir build -j $(nproc) && ./build/test/functional/test_runner.py -j $(( $(nproc) * 2 ))" ${{ env.TEST_BASE }}
+          git rebase --exec "echo Running test-one-commit on \$( git log -1 ) && CC=clang CXX=clang++ cmake -B build -DWERROR=ON -DWITH_MULTIPROCESS=OFF -DWITH_ZMQ=ON -DBUILD_GUI=ON -DBUILD_BENCH=ON -DBUILD_FUZZ_BINARY=ON -DWITH_BDB=ON -DWITH_USDT=ON -DCMAKE_CXX_FLAGS='-Wno-error=unused-member-function' && cmake --build build -j $(nproc) && ctest --output-on-failure --stop-on-failure --test-dir build -j $(nproc) && ./build/test/functional/test_runner.py -j $(( $(nproc) * 2 ))" ${{ env.TEST_BASE }}
 
   macos-native-arm64:
     name: ${{ matrix.job-name }}

ci/test/00_setup_env_mac_native.sh

@@ -11,7 +11,13 @@ export LC_ALL=C.UTF-8
 export PIP_PACKAGES="--break-system-packages zmq"
 export GOAL="install"
 export CMAKE_GENERATOR="Ninja"
-export BITCOIN_CONFIG="-DBUILD_GUI=ON -DWITH_ZMQ=ON -DREDUCE_EXPORTS=ON"
+export BITCOIN_CONFIG="\
+-DWITH_MULTIPROCESS=ON \
+-DBUILD_GUI=ON \
+-DWITH_ZMQ=ON \
+-DREDUCE_EXPORTS=ON \
+"
 export CI_OS_NAME="macos"
 export NO_DEPENDS=1
 export OSX_SDK=""
+export BITCOIND=bitcoin-node # Used in functional tests

ci/test/00_setup_env_native_asan.sh

@@ -24,7 +24,12 @@ export PACKAGES="systemtap-sdt-dev clang-${APT_LLVM_V} llvm-${APT_LLVM_V} libcla
 export NO_DEPENDS=1
 export GOAL="install"
 export BITCOIN_CONFIG="\
- -DWITH_USDT=ON -DWITH_ZMQ=ON -DWITH_BDB=ON -DWARN_INCOMPATIBLE_BDB=OFF -DBUILD_GUI=ON \
+ -DWITH_MULTIPROCESS=OFF \
+ -DWITH_USDT=ON \
+ -DWITH_ZMQ=ON \
+ -DWITH_BDB=ON \
+ -DWARN_INCOMPATIBLE_BDB=OFF \
+ -DBUILD_GUI=ON \
  -DSANITIZERS=address,float-divide-by-zero,integer,undefined \
  -DCMAKE_C_COMPILER=clang-${APT_LLVM_V} \
  -DCMAKE_CXX_COMPILER=clang++-${APT_LLVM_V} \

ci/test/00_setup_env_native_fuzz_with_valgrind.sh

@@ -16,6 +16,7 @@ export RUN_FUZZ_TESTS=true
 export FUZZ_TESTS_CONFIG="--valgrind"
 export GOAL="install"
 export BITCOIN_CONFIG="\
+ -DWITH_MULTIPROCESS=ON \
  -DBUILD_FOR_FUZZING=ON \
  -DSANITIZERS=fuzzer \
  -DCMAKE_C_COMPILER=clang-16 \

ci/test/00_setup_env_native_tidy.sh

@@ -19,7 +19,13 @@ export RUN_CHECK_DEPS=true
 export RUN_TIDY=true
 export GOAL="install"
 export BITCOIN_CONFIG="\
- -DWITH_ZMQ=ON -DBUILD_GUI=ON -DBUILD_BENCH=ON -DWITH_USDT=ON -DWITH_BDB=ON -DWARN_INCOMPATIBLE_BDB=OFF \
+ -DWITH_MULTIPROCESS=ON \
+ -DWITH_ZMQ=ON \
+ -DBUILD_GUI=ON \
+ -DBUILD_BENCH=ON \
+ -DWITH_USDT=ON \
+ -DWITH_BDB=ON \
+ -DWARN_INCOMPATIBLE_BDB=OFF \
  -DENABLE_HARDENING=OFF \
  -DCMAKE_C_COMPILER=clang-${TIDY_LLVM_V} \
  -DCMAKE_CXX_COMPILER=clang++-${TIDY_LLVM_V} \

ci/test/00_setup_env_native_valgrind.sh

@@ -15,7 +15,11 @@ export TEST_RUNNER_EXTRA="--exclude feature_init,rpc_bind,feature_bind_extra"  #
 export GOAL="install"
 # TODO enable GUI
 export BITCOIN_CONFIG="\
- -DWITH_ZMQ=ON -DWITH_BDB=ON -DWARN_INCOMPATIBLE_BDB=OFF -DBUILD_GUI=OFF \
+ -DWITH_MULTIPROCESS=ON \
+ -DWITH_ZMQ=ON
+ -DWITH_BDB=ON
+ -DWARN_INCOMPATIBLE_BDB=OFF
+ -DBUILD_GUI=OFF \
  -DCMAKE_C_COMPILER=clang-16 \
  -DCMAKE_CXX_COMPILER=clang++-16 \
 "