cmake: Build bitcoin_util static library

CMakeLists.txt

@@ -40,6 +40,7 @@ list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/module)
 include(CMakeDependentOption)
 option(ASM "Use assembly routines." ON)
 cmake_dependent_option(CXX20 "Enable compilation in C++20 mode." OFF "NOT MSVC" ON)
+option(THREADLOCAL "Enable features that depend on the C++ thread_local keyword (currently just thread names in debug logs)." ON)
 
 if(CXX20)
   set(CMAKE_CXX_STANDARD 20)
@@ -96,6 +97,9 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
   add_compile_definitions(MAC_OSX)
 endif()
 
+include(AddThreadsIfNeeded)
+add_threads_if_needed()
+
 include(CheckSourceCompilesAndLinks)
 include(cmake/introspection.cmake)
 

cmake/module/AddThreadsIfNeeded.cmake

@@ -0,0 +1,33 @@
+# Copyright (c) 2023 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+function(add_threads_if_needed)
+  # TODO: Not all targets, which will be added in the future,
+  #       require Threads. Therefore, a proper check will be
+  #       appropriate here.
+
+  set(THREADS_PREFER_PTHREAD_FLAG ON)
+  find_package(Threads REQUIRED)
+
+  set(thread_local)
+  if(MINGW)
+    #[=[
+    mingw32's implementation of thread_local has been shown to behave
+    erroneously under concurrent usage.
+    See:
+     - https://github.com/bitcoin/bitcoin/pull/15849
+     - https://gist.github.com/jamesob/fe9a872051a88b2025b1aa37bfa98605
+    ]=]
+  elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+    #[=[
+    FreeBSD's implementation of thread_local is buggy.
+    See:
+     - https://github.com/bitcoin/bitcoin/pull/16059
+     - https://groups.google.com/d/msg/bsdmailinglist/22ncTZAbDp4/Dii_pII5AwAJ
+    ]=]
+  elseif(THREADLOCAL)
+    set(thread_local "$<$<COMPILE_FEATURES:cxx_thread_local>:HAVE_THREAD_LOCAL>")
+  endif()
+  set(THREAD_LOCAL_IF_AVAILABLE "${thread_local}" PARENT_SCOPE)
+endfunction()

src/CMakeLists.txt

@@ -8,3 +8,4 @@ include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
 
 add_subdirectory(crypto)
 add_subdirectory(univalue)
+add_subdirectory(util)

src/util/CMakeLists.txt

@@ -0,0 +1,56 @@
+# Copyright (c) 2023 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+add_library(bitcoin_util STATIC EXCLUDE_FROM_ALL
+  asmap.cpp
+  bip32.cpp
+  bytevectorhash.cpp
+  check.cpp
+  error.cpp
+  fees.cpp
+  getuniquepath.cpp
+  hasher.cpp
+  message.cpp
+  moneystr.cpp
+  rbf.cpp
+  readwritefile.cpp
+  settings.cpp
+  serfloat.cpp
+  sock.cpp
+  spanparsing.cpp
+  strencodings.cpp
+  string.cpp
+  syscall_sandbox.cpp
+  syserror.cpp
+  system.cpp
+  thread.cpp
+  threadinterrupt.cpp
+  threadnames.cpp
+  time.cpp
+  tokenpipe.cpp
+  ../chainparamsbase.cpp
+  ../clientversion.cpp
+  ../fs.cpp
+  ../logging.cpp
+  ../random.cpp
+  ../randomenv.cpp
+  ../support/cleanse.cpp
+  ../support/lockedpool.cpp
+  ../sync.cpp
+)
+
+target_compile_definitions(bitcoin_util
+  PRIVATE
+    ${THREAD_LOCAL_IF_AVAILABLE}
+    $<$<CXX_COMPILER_ID:MSVC>:_SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING>
+)
+
+target_link_libraries(bitcoin_util
+  PRIVATE
+    bitcoin_crypto
+    univalue
+    Threads::Threads
+    $<TARGET_NAME_IF_EXISTS:std_filesystem>
+    $<$<BOOL:${MINGW}>:ws2_32>
+)