Merge bitcoin/bitcoin#29765: ci: Use clang-18

fa75220 ci: Use clang-18 in asan/fuzz/tsan task (MarcoFalke)
fad23a0 ci: Bump clang+llvm in i686_multiprocess task (MarcoFalke)

Pull request description:

  Use clang-18, which comes with bugfixes and sanitizer upgrades.

ACKs for top commit:
  fanquake:
    ACK fa75220

Tree-SHA512: da251eb55d3a7e537110b03fb0fc10fc6e2f4406d55bdb33bdc91459daabfd3b8d1d20859a66718bb1b09126e11495f6584c52504a85eb09bde9eafafdaf0b0b

Author: fanquake

ci/test/00_setup_env_i686_multiprocess.sh

@@ -8,7 +8,7 @@ export LC_ALL=C.UTF-8
 
 export HOST=i686-pc-linux-gnu
 export CONTAINER_NAME=ci_i686_multiprocess
-export CI_IMAGE_NAME_TAG="docker.io/amd64/ubuntu:22.04"
+export CI_IMAGE_NAME_TAG="docker.io/amd64/ubuntu:24.04"
 export PACKAGES="llvm clang g++-multilib"
 export DEP_OPTS="DEBUG=1 MULTIPROCESS=1"
 export GOAL="install"

ci/test/00_setup_env_native_asan.sh

@@ -17,10 +17,10 @@ else
 fi
 
 export CONTAINER_NAME=ci_native_asan
-export PACKAGES="systemtap-sdt-dev clang-17 llvm-17 libclang-rt-17-dev python3-zmq qtbase5-dev qttools5-dev-tools libevent-dev libboost-dev libdb5.3++-dev libminiupnpc-dev libnatpmp-dev libzmq3-dev libqrencode-dev libsqlite3-dev ${BPFCC_PACKAGE}"
+export PACKAGES="systemtap-sdt-dev clang-18 llvm-18 libclang-rt-18-dev python3-zmq qtbase5-dev qttools5-dev-tools libevent-dev libboost-dev libdb5.3++-dev libminiupnpc-dev libnatpmp-dev libzmq3-dev libqrencode-dev libsqlite3-dev ${BPFCC_PACKAGE}"
 export NO_DEPENDS=1
 export GOAL="install"
 export BITCOIN_CONFIG="--enable-usdt --enable-zmq --with-incompatible-bdb --with-gui=qt5 \
 CPPFLAGS='-DARENA_DEBUG -DDEBUG_LOCKORDER' \
 --with-sanitizers=address,float-divide-by-zero,integer,undefined \
-CC='clang-17 -ftrivial-auto-var-init=pattern' CXX='clang++-17 -ftrivial-auto-var-init=pattern'"
+CC='clang-18 -ftrivial-auto-var-init=pattern' CXX='clang++-18 -ftrivial-auto-var-init=pattern'"

ci/test/00_setup_env_native_fuzz.sh

@@ -8,14 +8,14 @@ export LC_ALL=C.UTF-8
 
 export CI_IMAGE_NAME_TAG="docker.io/ubuntu:24.04"
 export CONTAINER_NAME=ci_native_fuzz
-export PACKAGES="clang-17 llvm-17 libclang-rt-17-dev libevent-dev libboost-dev libsqlite3-dev"
+export PACKAGES="clang-18 llvm-18 libclang-rt-18-dev libevent-dev libboost-dev libsqlite3-dev"
 export NO_DEPENDS=1
 export RUN_UNIT_TESTS=false
 export RUN_FUNCTIONAL_TESTS=false
 export RUN_FUZZ_TESTS=true
 export GOAL="install"
 export CI_CONTAINER_CAP="--cap-add SYS_PTRACE"  # If run with (ASan + LSan), the container needs access to ptrace (https://github.com/google/sanitizers/issues/764)
 export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer,address,undefined,float-divide-by-zero,integer \
-CC='clang-17 -ftrivial-auto-var-init=pattern' CXX='clang++-17 -ftrivial-auto-var-init=pattern'"
+CC='clang-18 -ftrivial-auto-var-init=pattern' CXX='clang++-18 -ftrivial-auto-var-init=pattern'"
 export CCACHE_MAXSIZE=200M
-export LLVM_SYMBOLIZER_PATH="/usr/bin/llvm-symbolizer-17"
+export LLVM_SYMBOLIZER_PATH="/usr/bin/llvm-symbolizer-18"

ci/test/00_setup_env_native_tsan.sh

@@ -8,7 +8,7 @@ export LC_ALL=C.UTF-8
 
 export CONTAINER_NAME=ci_native_tsan
 export CI_IMAGE_NAME_TAG="docker.io/ubuntu:24.04"
-export PACKAGES="clang-17 llvm-17 libclang-rt-17-dev libc++abi-17-dev libc++-17-dev python3-zmq"
-export DEP_OPTS="CC=clang-17 CXX='clang++-17 -stdlib=libc++'"
+export PACKAGES="clang-18 llvm-18 libclang-rt-18-dev libc++abi-18-dev libc++-18-dev python3-zmq"
+export DEP_OPTS="CC=clang-18 CXX='clang++-18 -stdlib=libc++'"
 export GOAL="install"
 export BITCOIN_CONFIG="--enable-zmq CPPFLAGS='-DARENA_DEBUG -DDEBUG_LOCKORDER -DDEBUG_LOCKCONTENTION' CXXFLAGS='-g' --with-sanitizers=thread"