ci: bump container to Clang 18, update CI

.github/workflows/build.yml

@@ -69,16 +69,16 @@ jobs:
           dep_opts: ""
         - build_target: linux64_multiprocess
           host: x86_64-pc-linux-gnu
-          dep_opts: "DEBUG=1 MULTIPROCESS=1 CC=clang-16 CXX=clang++-16"
+          dep_opts: "DEBUG=1 MULTIPROCESS=1 CC=clang-18 CXX=clang++-18"
         - build_target: linux64_tsan
           host: x86_64-pc-linux-gnu
-          dep_opts: "DEBUG=1 MULTIPROCESS=1 CC=clang-16 CXX=clang++-16"
+          dep_opts: "DEBUG=1 MULTIPROCESS=1 CC=clang-18 CXX=clang++-18"
         - build_target: linux64_ubsan
           host: x86_64-pc-linux-gnu
           dep_opts: "DEBUG=1"
         - build_target: linux64_fuzz
           host: x86_64-pc-linux-gnu
-          dep_opts: "DEBUG=1 MULTIPROCESS=1 CC=clang-16 CXX=clang++-16"
+          dep_opts: "DEBUG=1 MULTIPROCESS=1 CC=clang-18 CXX=clang++-18"
         - build_target: linux64_cxx20
           host: x86_64-pc-linux-gnu
           dep_opts: "DEBUG=1"

.gitlab-ci.yml

@@ -209,7 +209,7 @@ x86_64-pc-linux-gnu-multiprocess:
     - .skip-in-fast-mode-template
   variables:
     HOST: x86_64-pc-linux-gnu
-    DEP_OPTS: "DEBUG=1 MULTIPROCESS=1 CC=clang-16 CXX=clang++-16"
+    DEP_OPTS: "DEBUG=1 MULTIPROCESS=1 CC=clang-18 CXX=clang++-18"
 
 x86_64-apple-darwin:
   extends:

ci/test/00_setup_env_native_fuzz.sh

@@ -16,4 +16,4 @@ export RUN_UNIT_TESTS=false
 export RUN_FUNCTIONAL_TESTS=false
 export RUN_FUZZ_TESTS=true
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined,integer --enable-suppress-external-warnings CC=clang-16 CXX=clang++-16 --with-boost-process"
+export BITCOIN_CONFIG="--enable-zmq --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined,integer --enable-suppress-external-warnings CC=clang-18 CXX=clang++-18 --with-boost-process"

ci/test/00_setup_env_native_fuzz_with_valgrind.sh

@@ -14,4 +14,4 @@ export RUN_FUNCTIONAL_TESTS=false
 export RUN_FUZZ_TESTS=true
 export FUZZ_TESTS_CONFIG="--valgrind"
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer --enable-suppress-external-warnings CC=clang-16 CXX=clang++-16"
+export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer --enable-suppress-external-warnings CC=clang-18 CXX=clang++-18"

ci/test/00_setup_env_native_multiprocess.sh

@@ -10,5 +10,5 @@ export CONTAINER_NAME=ci_native_multiprocess
 export PACKAGES="cmake python3 llvm clang"
 export DEP_OPTS="DEBUG=1 MULTIPROCESS=1"
 export GOAL="install"
-export BITCOIN_CONFIG="--with-boost-process --enable-debug CC=clang-16 CXX=clang++-16" # Use clang to avoid OOM
+export BITCOIN_CONFIG="--with-boost-process --enable-debug CC=clang-18 CXX=clang++-18" # Use clang to avoid OOM
 export TEST_RUNNER_ENV="BITCOIND=dash-node"

ci/test/00_setup_env_native_tsan.sh

@@ -7,11 +7,11 @@
 export LC_ALL=C.UTF-8
 
 export CONTAINER_NAME=ci_native_tsan
-export PACKAGES="clang-16 llvm-16 libclang-rt-16-dev libc++abi-16-dev libc++-16-dev python3-zmq"
-export DEP_OPTS="CC=clang-16 CXX='clang++-16 -stdlib=libc++'"
+export PACKAGES="clang-18 llvm-16 libclang-rt-16-dev libc++abi-16-dev libc++-16-dev python3-zmq"
+export DEP_OPTS="CC=clang-18 CXX='clang++-18 -stdlib=libc++'"
 export TEST_RUNNER_EXTRA="--extended --exclude feature_pruning,feature_dbcrash,wallet_multiwallet.py" # Temporarily suppress ASan heap-use-after-free (see issue #14163)
 export TEST_RUNNER_EXTRA="${TEST_RUNNER_EXTRA} --timeout-factor=4"  # Increase timeout because sanitizers slow down
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --with-gui=no --with-sanitizers=thread CC=clang-16 CXX=clang++-16 CXXFLAGS='-g' --with-boost-process"
+export BITCOIN_CONFIG="--enable-zmq --with-gui=no --with-sanitizers=thread CC=clang-18 CXX=clang++-18 CXXFLAGS='-g' --with-boost-process"
 export CPPFLAGS="-DDEBUG_LOCKORDER -DARENA_DEBUG"
 export PYZMQ=true

ci/test/00_setup_env_native_ubsan.sh

@@ -8,8 +8,8 @@
 export LC_ALL=C.UTF-8
 
 export CONTAINER_NAME=ci_native_ubsan
-export PACKAGES="clang-16 llvm-16 python3-zmq qtbase5-dev qttools5-dev-tools libevent-dev bsdmainutils libboost-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libqrencode-dev"
+export PACKAGES="clang-18 llvm-16 python3-zmq qtbase5-dev qttools5-dev-tools libevent-dev bsdmainutils libboost-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libqrencode-dev"
 export DEP_OPTS="NO_UPNP=1 DEBUG=1"
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --enable-reduce-exports --enable-crash-hooks --with-sanitizers=undefined CC=clang-16 CXX=clang++-16"
+export BITCOIN_CONFIG="--enable-zmq --enable-reduce-exports --enable-crash-hooks --with-sanitizers=undefined CC=clang-18 CXX=clang++-18"
 export PYZMQ=true

ci/test/00_setup_env_native_valgrind.sh

@@ -11,4 +11,4 @@ export USE_VALGRIND=1
 export NO_DEPENDS=1
 export TEST_RUNNER_EXTRA="--exclude rpc_bind --timeout-factor=4"  # Excluded for now, see https://github.com/bitcoin/bitcoin/issues/17765#issuecomment-602068547
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq --with-incompatible-bdb --with-gui=no --enable-suppress-external-warnings CC=clang-16 CXX=clang++-16"  # TODO enable GUI
+export BITCOIN_CONFIG="--enable-zmq --with-incompatible-bdb --with-gui=no --enable-suppress-external-warnings CC=clang-18 CXX=clang++-18"  # TODO enable GUI

contrib/containers/ci/Dockerfile

@@ -49,7 +49,7 @@ RUN apt-get update && apt-get install $APT_ARGS \
     zlib1g-dev
 
 # Install Clang+LLVM and set it as default
-ARG LLVM_VERSION=16
+ARG LLVM_VERSION=18
 RUN set -ex; \
     cd /tmp && \
     wget https://apt.llvm.org/llvm.sh && \