Ricky Yel Blog

CMake编译时部分源文件保留调试信息

 
  • Ricky Yel
  • 2024年 03月01日

在大型项目中，会有多个目录下的源文件需要编译。希望可能针对性的配置需要保留调试信息的源文件，而不是整个项目的源文件都保留调试信息。

CMake编译时部分源文件保留调试信息

一个ros2项目的部分目录结构如下：

.
├── CMakeLists.txt
├── include
│   ├── tracking
│   │   ├── matcher.hpp
│   │   ├── tracker.hpp
│   │   ├── tracker_manager.hpp
│   │   └── utility.hpp
│   └── utility
│       ├── timer_consume.hpp
│       ├── translator_utils.hpp
│       └── utils.hpp
├── src
│   ├── file1.cpp
│   ├── file2.cpp
│   ├── tracking
│   │   ├── CMakeLists.txt
│   │   ├── matcher.cpp
│   │   ├── tracker.cpp
│   │   ├── tracker_manager.cpp
│   │   └── utility.cpp
│   └── utility
│       ├── CMakeLists.txt
│       ├── timer_consume.cpp
│       ├── translator_utils.cpp
│       └── utils.cpp

CMakeLists.txt

# CMakeLists.txt
cmake_minimum_required(VERSION 3.8)
project(CMakeCompileWithDebugInfo)

set(CMAKE_C_STANDARD 99)
set(CMAKE_CXX_STANDARD 11)

set(CMAKE_BUILD_TYPE Release)
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -g")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0 -g")
elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
endif()

find_package(foxglove_msgs REQUIRED)
find_package(OpenCV REQUIRED)


set(SOURCE_LIST
  ${CMAKE_CURRENT_SOURCE_DIR}/src/file1.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/src/file2.cpp

add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/tracking)
list(APPEND SOURCE_LIST $<TARGET_OBJECTS:tracking_objs>)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/src/utility)
list(APPEND SOURCE_LIST $<TARGET_OBJECTS:utility_objs>)


add_library(${PROJECT_NAME}_lib SHARED
  ${SOURCE_LIST}
)
target_include_directories(${PROJECT_NAME}_lib PRIVATE
  ${CMAKE_CURRENT_SOURCE_DIR}/include
  ${OpenCV_INCLUDE_DIRS}
  # ...
)
target_link_libraries(${PROJECT_NAME}_lib
  ${OpenCV_LIBRARIES}
  # ...
)

src/tracking/CMakeLists.txt

# src/tracking/CMakeLists.txt
add_library(tracking_objs OBJECT
${CMAKE_CURRENT_SOURCE_DIR}/matcher.cpp
${CMAKE_CURRENT_SOURCE_DIR}/tracker_manager.cpp
${CMAKE_CURRENT_SOURCE_DIR}/tracker.cpp
${CMAKE_CURRENT_SOURCE_DIR}/utility.cpp
)

target_include_directories(tracking_objs PUBLIC
  ${CMAKE_SOURCE_DIR}/include
)

target_link_libraries(tracking_objs
  ${OpenCV_LIBRARIES}
  # ...
)

target_compile_options(tracking_objs PRIVATE -O3 -fPIC)
# if want to keep debug info, use -O0 -g
# target_compile_options(tracking_objs PRIVATE -O0 -g -fPIC)

src/utility/CMakeLists.txt

# src/utility/CMakeLists.txt
find_package(tf2 REQUIRED)
find_package(tf2_ros REQUIRED)

add_library(utility_objs OBJECT
  ${CMAKE_CURRENT_SOURCE_DIR}/utils.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/timer_consume.cpp
  ${CMAKE_CURRENT_SOURCE_DIR}/translator_utils.cpp
)

ament_target_dependencies(utility_objs 
  foxglove_msgs
  tf2
  tf2_ros
)
target_include_directories(utility_objs PUBLIC 
  ${CMAKE_SOURCE_DIR}/include
  ${OpenCV_INCLUDE_DIRS}
  # ...
)

target_link_libraries(utility_objs 
  # ...
)

target_compile_options(utility_objs PRIVATE -O3 -fPIC)
# if want to keep debug info, use -O0 -g
# target_compile_options(utility_objs PRIVATE -O0 -g -fPIC)

这里面值的注意的是，target_compile_options 中的 -g 选项，可以针对性的配置需要保留调试信息的源文件，而不是整个项目的源文件都保留调试信息。

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