使用cmake进行编译并包含调试信息

Question

cmake版本2.8.5

我正在尝试使用cmake编译我的项目.但是,当我编译时,我不认为我包括调试cflags即-ggdb -D_DEBUG.当我尝试调试时,没有debub信息.

CMakeLists.txt文件是否有任何问题.我有3个

# Mimimum version of cmake required
CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

# Name of project
PROJECT(sdp_creator C)

# Check for correct compiler
# Using C compiler GNUCXX for c++ compiler
IF(CMAKE_COMPILER_IS_GNUCC)
  MESSAGE(STATUS "=== GCC C COMPILER DETECTED")
  SET(CMAKE_C_FLAGS "-m32 -ggdb -D_DEBUG -Wextra -Wall -Wunreachable-code -O0 -D_LARGEFILE64_SOURCE")
ENDIF(CMAKE_COMPILER_IS_GNUCC)

# Using windows compiler i.e. msvc++
IF(WIN32)
  MESSAGE(STATUS "=== MSVC COMPILER DETECTED")
ENDIF(WIN32)

# Location of directory where include files are kept
INCLUDE_DIRECTORIES($ENV{HOME}/projects/sdp_creator/src/sdp)
INCLUDE_DIRECTORIES($ENV{HOME}/projects/sdp_creator/src/apr/inc)

# Location of directory where libraries are kept
LINK_DIRECTORIES($ENV{HOME}/projects/sdp_creator/src/apr/lib)

# Add subdirectories
ADD_SUBDIRECTORY(driver)
ADD_SUBDIRECTORY(sdp)

建立共享库:

# Create a shared library called libsdp from sdp.c
# NOTE: static is the default
# NOTE: the lib prefix is automatically added
ADD_LIBRARY(sdp SHARED sdp.c)

创建可执行文

# Add executable called sdp_creator from source file
ADD_EXECUTABLE(sdp_creator main.c)

# Link the sdp library and other libraries with the excutable 
#if using windows compiler add additional windows libraries
IF(WIN32)
  TARGET_LINK_LIBRARIES(sdp_creator libsdp ws2_32)
  MESSAGE(STATUS "=== Linking executable with windows libraries")
ENDIF(WIN32)

# if using gcc compiler
# NOTE: no need to add the -l prefix i.e. -lsdp, no automatically
IF(CMAKE_COMPILER_IS_GNUCC)
  TARGET_LINK_LIBRARIES(sdp_creator sdp apr-1)
  MESSAGE(STATUS "=== Linking executable with posix libraries")
ENDIF(CMAKE_COMPILER_IS_GNUCC)

非常感谢任何建议,

Answer 1

如果您正在使用"Unix Makefiles"(或任何基于Makefile的)生成器,请将变量CMAKE_BUILD_TYPE设置为"Debug"

cmake -DCMAKE_BUILD_TYPE=Debug ../src

这将自动为编译器添加正确的定义和标志.你不应该自己添加任何标志.

使用多配置生成器(如Visual Studio和Xcode)时,将忽略CMAKE_BUILD_TYPE,因为是否构建调试或发布配置的选择由构建时的开发​​人员决定,并且在CMake配置时不知道.

Answer 2

您可以通过设置检查make中使用的确切步骤VERBOSE=1.这将告诉你是否包含标志.

cmake project_dir
make VERBOSE=1

您还可以检查CMakeCache.txt以查看为CMAKE_C_FLAGS变量分配的值.

Answer 3

你可以使用带有-g0/1/2的CMAKE_C_FLAGS和CMAKE_CXX_FLAGS标志(编译器的调试信息标志.-g2是最高的信息):

cmake ... -DCMAKE_C_FLAGS="-g2" -DCMAKE_CXX_FLAGS="-g2" ...

Answer 4

如果使用 unix Makefile 来构建项目，另一种选择是直接在 CMakeLists.txt 文件中设置 CMAKE_BUILD_TYPE：
set(CMAKE_BUILD_TYPE Debug)

您可以在
$ man cmakevars
查找 CMAKE_BUILD_TYPE中找到更多信息