错误，MinGW的

Question

当我打电话GetProcessMemoryInfo我得到一个错误： 未定义的参考`GetProcessMemoryInfo”

我已经看到了这个问题：Undefined reference to getprocessmemoryinfo@12

但它不能解决我的问题。

我想知道我的进程在RAM中的大小是多少，所以我需要使用'GetProcessMemoryInfo'方法。

我的问题是，当我这样做时，链接会中断。

的CMakeLists.txt：

project(maxpath) 

set(dir ${CMAKE_CURRENT_SOURCE_DIR}) 
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${dir}/build") 

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -static-libgcc -static-libstdc++ -static -m64 -lpsapi") 

file(GLOB LIB_ALG algorithms/*.hpp) 
file(GLOB LIB_DS datastructures/*.hpp) 
file(GLOB LIB_LOG include/*.h) 

set(GRID_GENERATOR 
     ${LIB_ALG} 
     ${LIB_DS} 
     ${LIB_LOG} 
     grid/generator.cpp 
     grid/grid.hpp) 

set(GRID_SOLVER 
     ${LIB_ALG} 
     ${LIB_DS} 
     ${LIB_LOG} 
     grid/main_grid.cpp 
     grid/grid.hpp 
     include/memory_helper.cpp include/memory_helper.hpp include/fnv.h) 
add_executable(gridGenerator ${GRID_GENERATOR}) 
add_executable(gridSolver ${GRID_SOLVER}) 

你可以看到，我用的是-lpsapi说法，

我得到的错误是：

[ 33%] Linking CXX executable "some path...\gridSolver.exe" 
CMakeFiles\gridSolver.dir/objects.a(memory_helper.cpp.obj):memory_helper.cpp:(.text+0xf1): undefined reference to `GetProcessMemoryInfo' 
CMakeFiles\gridSolver.dir/objects.a(memory_helper.cpp.obj):memory_helper.cpp:(.text+0x131): undefined reference to `GetProcessMemoryInfo' 
C:/PROGRA~1/MINGW-~1/X86_64~1.3-P/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.3/../../../../x86_64-w64-mingw32/bin/ld.exe: CMakeFiles\gridSolver.dir/objects.a(memory_helper.cpp.obj): bad reloc address 0x0 in section `.pdata' 
C:/PROGRA~1/MINGW-~1/X86_64~1.3-P/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.3/../../../../x86_64-w64-mingw32/bin/ld.exe: final link failed: Invalid operation 
collect2.exe: error: ld returned 1 exit status 
mingw32-make.exe[3]: *** [some path.../gridSolver.exe] Error 1 
CMakeFiles\gridSolver.dir\build.make:121: recipe for target 'some path.../gridSolver.exe' failed 
mingw32-make.exe[2]: *** [CMakeFiles/gridSolver.dir/all] Error 2 
CMakeFiles\Makefile2:103: recipe for target 'CMakeFiles/gridSolver.dir/all' failed 
mingw32-make.exe[1]: *** [CMakeFiles/gridSolver.dir/rule] Error 2 
CMakeFiles\Makefile2:115: recipe for target 'CMakeFiles/gridSolver.dir/rule' failed 
mingw32-make.exe: *** [gridSolver] Error 2 
makefile:130: recipe for target 'gridSolver' failed 

我与克利翁和MinGW工作-w64 \ x86_64-4.8.3-posix-seh-rt_v3-rev2 \ mingw64

有没有另一种方法o f这样做（除了使用psapi）？

Answer 1

答案是正确的。您应该链接对psapi：

FIND_LIBRARY (PSAPI Psapi) 
TARGET_LINK_LIBRARIES(gridSolver ${PSAPI}) 
TARGET_LINK_LIBRARIES(gridGenerator ${PSAPI}) 

或者你也可以手动将其添加到链接器的标志 - 你在你的例子添加到编译器标志。