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Precompiled headers

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Sample times:
MSVC 2013, debug x64: 5min 15sec -> 2min 15sec
Ubuntu 15.04, with hardening, static, release: 5min 21sec -> 3min 24sec
This commit is contained in:
Mikhail Titov 2015-06-10 01:04:33 -05:00
parent ba2b792916
commit 0354685e35
3 changed files with 112 additions and 2 deletions
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46
build/CMakeLists.txt
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@ -1,4 +1,4 @@
cmake_minimum_required ( VERSION 2.8.5 )
cmake_minimum_required ( VERSION 2.8.12 )
project ( "i2pd" )
# configurale options
@ -8,6 +8,7 @@ option(WITH_LIBRARY "Build library" ON)
option(WITH_BINARY "Build binary" ON)
option(WITH_STATIC "Static build" OFF)
option(WITH_UPNP "Include support for UPnP client" OFF)
option(WITH_PCH "Use precompiled header" OFF)
# paths
set ( CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules" )
@ -88,7 +89,7 @@ endif ()
# compiler flags customization (by vendor)
if (NOT MSVC)
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra" )
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Winvalid-pch" )
set( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -pedantic" )
# TODO: The following is incompatible with static build and enabled hardening for OpenWRT.
# Multiple definitions of __stack_chk_fail (libssp & libc)
@ -179,6 +180,30 @@ else()
add_definitions(-DBOOST_ALL_DYN_LINK)
endif ()
if (WITH_PCH)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/..)
add_library(stdafx STATIC "${CMAKE_SOURCE_DIR}/stdafx.cpp")
if(MSVC)
target_compile_options(stdafx PRIVATE /Ycstdafx.h /Zm135)
add_custom_command(TARGET stdafx POST_BUILD
COMMAND xcopy /y stdafx.dir\\$<CONFIG>\\*.pdb common.dir\\$<CONFIG>\\
COMMAND xcopy /y stdafx.dir\\$<CONFIG>\\*.pdb i2pd-bin.dir\\$<CONFIG>\\
COMMAND xcopy /y stdafx.dir\\$<CONFIG>\\*.pdb i2pd.dir\\$<CONFIG>\\
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
target_compile_options(common PRIVATE /FIstdafx.h /Yustdafx.h /Zm135 "/Fp${CMAKE_BINARY_DIR}/stdafx.dir/$<CONFIG>/stdafx.pch")
else()
string(TOUPPER ${CMAKE_BUILD_TYPE} BTU)
get_directory_property(DEFS DEFINITIONS)
string(REPLACE " " ";" FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${BTU}} ${DEFS}")
add_custom_command(TARGET stdafx PRE_BUILD
COMMAND ${CMAKE_CXX_COMPILER} ${FLAGS} -c ${CMAKE_CURRENT_SOURCE_DIR}/../stdafx.h
)
target_compile_options(common PRIVATE -include stdafx.h)
endif()
target_link_libraries(common stdafx)
endif()
find_package ( Boost COMPONENTS system filesystem regex program_options date_time thread chrono REQUIRED )
if(NOT DEFINED Boost_INCLUDE_DIRS)
message(SEND_ERROR "Boost is not found, or your boost version was bellow 1.46. Please download Boost!")
@ -211,6 +236,7 @@ message(STATUS " LIBRARY : ${WITH_LIBRARY}")
message(STATUS " BINARY : ${WITH_BINARY}")
message(STATUS " STATIC BUILD : ${WITH_STATIC}")
message(STATUS " UPnP : ${WITH_UPNP}")
message(STATUS " PCH : ${WITH_PCH}")
message(STATUS "---------------------------------------")
#Handle paths nicely
@ -225,6 +251,14 @@ if (WITH_BINARY)
endif ()
endif()
if (WITH_PCH)
if (MSVC)
target_compile_options("${PROJECT_NAME}-bin" PRIVATE /FIstdafx.h /Yustdafx.h /Zm135 "/Fp${CMAKE_BINARY_DIR}/stdafx.dir/$<CONFIG>/stdafx.pch")
else()
target_compile_options("${PROJECT_NAME}-bin" PRIVATE -include stdafx.h)
endif()
endif()
if (WITH_HARDENING AND CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set_target_properties("${PROJECT_NAME}-bin" PROPERTIES LINK_FLAGS "-z relro -z now" )
endif ()
@ -250,5 +284,13 @@ if (WITH_LIBRARY)
add_library(${PROJECT_NAME} ${LIBRARY_SRC})
target_link_libraries( ${PROJECT_NAME} common ${Boost_LIBRARIES} ${CRYPTO++_LIBRARIES})
endif ()
if (WITH_PCH)
if (MSVC)
add_dependencies(${PROJECT_NAME} stdafx)
target_compile_options(${PROJECT_NAME} PRIVATE /FIstdafx.h /Yustdafx.h /Zm135 "/Fp${CMAKE_BINARY_DIR}/stdafx.dir/$<CONFIG>/stdafx.pch")
else()
target_compile_options(${PROJECT_NAME} PRIVATE -include stdafx.h)
endif()
endif()
install(TARGETS ${PROJECT_NAME} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
endif ()