Merge bitcoin/bitcoin#29676: ci: Bump msan to llvm-18

faecf3a ci: Bump msan to llvm-18 (MarcoFalke)

Pull request description:

  Last one: bitcoin/bitcoin#28476

ACKs for top commit:
  fanquake:
    ACK faecf3a - There is now a 18.1.2, but given it doesn't fix the instrumenting in libunwind, we don't need that here. I've tested that both jobs are now working on both arches.

Tree-SHA512: 489c0b343bdc732687131317a570f3efbb18a3f548736d739da90d1a1e784df1dbb208c2da8a2a7740f27f961a841c477487a14c4d59910368f651225f0779b2

Author: fanquake

ci/test/00_setup_env_native_fuzz_with_msan.sh

@@ -6,7 +6,7 @@
 
 export LC_ALL=C.UTF-8
 
-export CI_IMAGE_NAME_TAG="docker.io/ubuntu:22.04"
+export CI_IMAGE_NAME_TAG="docker.io/ubuntu:24.04"
 LIBCXX_DIR="/msan/cxx_build/"
 export MSAN_FLAGS="-fsanitize=memory -fsanitize-memory-track-origins=2 -fno-omit-frame-pointer -g -O1 -fno-optimize-sibling-calls"
 LIBCXX_FLAGS="-nostdinc++ -nostdlib++ -isystem ${LIBCXX_DIR}include/c++/v1 -L${LIBCXX_DIR}lib -Wl,-rpath,${LIBCXX_DIR}lib -lc++ -lc++abi -lpthread -Wno-unused-command-line-argument"

ci/test/00_setup_env_native_msan.sh

@@ -6,7 +6,7 @@
 
 export LC_ALL=C.UTF-8
 
-export CI_IMAGE_NAME_TAG="docker.io/ubuntu:22.04"
+export CI_IMAGE_NAME_TAG="docker.io/ubuntu:24.04"
 LIBCXX_DIR="/msan/cxx_build/"
 export MSAN_FLAGS="-fsanitize=memory -fsanitize-memory-track-origins=2 -fno-omit-frame-pointer -g -O1 -fno-optimize-sibling-calls"
 LIBCXX_FLAGS="-nostdinc++ -nostdlib++ -isystem ${LIBCXX_DIR}include/c++/v1 -L${LIBCXX_DIR}lib -Wl,-rpath,${LIBCXX_DIR}lib -lc++ -lc++abi -lpthread -Wno-unused-command-line-argument"

ci/test/01_base_install.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# Copyright (c) 2018-2022 The Bitcoin Core developers
+# Copyright (c) 2018-present The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -36,7 +36,7 @@ if [ -n "$PIP_PACKAGES" ]; then
 fi
 
 if [[ ${USE_MEMORY_SANITIZER} == "true" ]]; then
-  ${CI_RETRY_EXE} git clone --depth=1 https://github.com/llvm/llvm-project -b llvmorg-17.0.6 /msan/llvm-project
+  ${CI_RETRY_EXE} git clone --depth=1 https://github.com/llvm/llvm-project -b "llvmorg-18.1.1" /msan/llvm-project
 
   cmake -G Ninja -B /msan/clang_build/ \
     -DLLVM_ENABLE_PROJECTS="clang" \
@@ -53,13 +53,14 @@ if [[ ${USE_MEMORY_SANITIZER} == "true" ]]; then
   update-alternatives --install /usr/bin/llvm-symbolizer llvm-symbolizer /msan/clang_build/bin/llvm-symbolizer 100
 
   cmake -G Ninja -B /msan/cxx_build/ \
-    -DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi' \
+    -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" \
     -DCMAKE_BUILD_TYPE=Release \
     -DLLVM_USE_SANITIZER=MemoryWithOrigins \
     -DCMAKE_C_COMPILER=clang \
     -DCMAKE_CXX_COMPILER=clang++ \
     -DLLVM_TARGETS_TO_BUILD=Native \
     -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF \
+    -DLIBCXXABI_USE_LLVM_UNWINDER=OFF \
     -DLIBCXX_HARDENING_MODE=debug \
     -S /msan/llvm-project/runtimes