Use precompiled headers via monero_use_pch_private

example in unit_tests and core_tests

CMakeLists.txt

@@ -62,6 +62,28 @@ if (USE_COMPILATION_TIME_PROFILER)
 	add_compile_options("-ftime-trace")
 endif()
 
+option(USE_PCH "Use precompiled headers" OFF)
+if (USE_PCH)
+	set(PCH_MIN_CMAKE_VERSION "3.16.6")
+	if(${CMAKE_VERSION} VERSION_LESS ${PCH_MIN_CMAKE_VERSION})
+		message(WARNING "Precompiled headers cannot be used with CMake prior to ${PCH_MIN_CMAKE_VERSION}")
+		set(USE_PCH OFF)
+	else()
+		message(STATUS "Using precompiled headers")
+	endif()
+endif()
+macro (monero_use_pch_private target header)
+  if (USE_PCH)
+    if (NOT MSVC)
+      # Play nicely with ccache:
+      # https://stackoverflow.com/questions/2530864/gcc-precompiled-headers-weird-behaviour-with-c-option
+      # https://ccache.dev/manual/latest.html#_precompiled_headers
+      target_compile_options(${target} PRIVATE "-fpch-preprocess")
+    endif()
+    target_precompile_headers(${target} PRIVATE ${header})
+  endif()
+endmacro()
+
 if (${CMAKE_VERSION} VERSION_GREATER "3.0.0" AND CMAKE_MAKE_PROGRAM MATCHES "ninja")
   set(MONERO_PARALLEL_COMPILE_JOBS "" CACHE STRING "The maximum number of concurrent compilation jobs.")
   if (MONERO_PARALLEL_COMPILE_JOBS)

tests/core_tests/CMakeLists.txt

@@ -89,6 +89,8 @@ set_property(TARGET core_tests
   PROPERTY
     FOLDER "tests")
 
+monero_use_pch_private(core_tests pch_core_tests.h)
+
 add_test(
   NAME    core_tests
   COMMAND core_tests --generate_and_play_test_data)

tests/core_tests/pch_core_tests.h

@@ -0,0 +1,34 @@
+// Copyright (c) 2014-2020, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+#pragma once
+
+#include "chaingen.h"
+#include "misc_log_ex.h"
+#include <boost/multiprecision/cpp_int.hpp>
+

tests/unit_tests/CMakeLists.txt

@@ -131,6 +131,8 @@ set_property(TARGET unit_tests
   PROPERTY
     FOLDER "tests")
 
+monero_use_pch_private(unit_tests pch_unit_tests.h)
+
 if (NOT MSVC)
   set_property(TARGET unit_tests
     APPEND_STRING

tests/unit_tests/pch_unit_tests.h

@@ -0,0 +1,71 @@
+// Copyright (c) 2014-2020, The Monero Project
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+// 
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+// 
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+// 
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+#pragma once
+
+#include "misc_log_ex.h"
+
+#include <boost/multiprecision/cpp_int.hpp>
+
+#include <boost/program_options/options_description.hpp>
+#include <boost/program_options/variables_map.hpp>
+
+#if BOOST_VERSION >= 107400
+#include <boost/serialization/library_version_type.hpp>
+#endif
+#include <boost/serialization/list.hpp>
+#include <boost/serialization/vector.hpp>
+#include <boost/serialization/deque.hpp>
+
+#include <boost/archive/portable_binary_oarchive.hpp>
+#include <boost/archive/portable_binary_iarchive.hpp>
+
+#include <boost/filesystem.hpp>
+#include <boost/filesystem/path.hpp>
+#include <boost/filesystem/operations.hpp>
+
+#include <boost/optional/optional.hpp>
+
+#include <boost/thread/thread.hpp>
+#include <boost/thread/mutex.hpp>
+#include <boost/thread/lock_guard.hpp>
+#include <boost/thread/scoped_thread.hpp>
+#include <boost/thread/condition_variable.hpp>
+
+#include <boost/algorithm/string/predicate.hpp>
+#include <boost/algorithm/string.hpp>
+
+#include <boost/foreach.hpp>
+
+#include <boost/system/error_code.hpp>
+
+#include <memory>
+#include <atomic>
+#include <random>
+
+