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kernelplv's questions

Martin Hope
kernelplv
Asked: 2020-06-23 23:30:57 +0000 UTC
  • 1

问题在标题中。

例子：

root@N34300 test # cat /proc/14023/maps 
00400000-0041e000 r--p 00000000 08:01 654153                             /bin/bash
0041e000-0049c000 r-xp 0001e000 08:01 654153                             /bin/bash
0049c000-004cd000 r--p 0009c000 08:01 654153                             /bin/bash
004ce000-004d1000 r--p 000cd000 08:01 654153                             /bin/bash
004d1000-004da000 rw-p 000d0000 08:01 654153                             /bin/bash
004da000-004e4000 rw-p 00000000 00:00 0 
02152000-02194000 rw-p 00000000 00:00 0                                  [heap]

在这种情况下，问题专门针对前三页。为什么，当我将虚拟页面的起始地址转换为物理页面时，有时我会发现与其他进程匹配。即两个进程的第一页开始的物理地址可以相同。

00400000 -> 129f91000 (process1) 
00400000 -> 129f91000 (process2)
linux
Martin Hope
kernelplv
Asked: 2020-09-02 05:34:56 +0000 UTC
  • 0

如何找出cmake从哪里获取“C：/building/”前缀？该目录从未存在过。我正在尝试在 exe 中静态链接 mingw 库。

[build] Starting build
[proc] Executing command: F:\msys64\mingw64\bin\cmake.exe --build c:/Users/kerne/Desktop/Dropper/build --config Debug --target all -- -j 10
[build] mingw32-make.exe[2]: *** No rule to make target 'C:/building/msys64/mingw64/lib/libexpat.dll.a', needed by 'dropper.exe'.  Stop.
[build] mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:75: CMakeFiles/dropper.dir/all] Error 2
[build] mingw32-make.exe: *** [Makefile:129: all] Error 2
[build] Build finished with exit code 2

CMakeLists.txt：

    cmake_minimum_required(VERSION 3.15)
    project(dropper)

    include(GNUInstallDirs)
    get_filename_component(mingw64_share ${CMAKE_ROOT} DIRECTORY)
    get_filename_component(mingw64 ${mingw64_share} DIRECTORY)
    set(mingw64_include ${mingw64}/include)
    set(mingw64_lib ${mingw64}/lib)
    set(mingw64_bin ${mingw64}/bin)
    set(CMAKE_INSTALL_PREFIX ${mingw64} CACHE PATH "Cmake prefix" FORCE)

    message(STATUS "!-- ${CMAKE_INSTALL_FULL_LIBDIR}")

    set(CMAKE_BUILD_TYPE Debug)
    set(CMAKE_CXX_STANDARD 14)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -Wall")
    set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++ -static-libexpat -static")

    # Create executable
    file(GLOB 
              CPP_SRC "src/*.cpp")

    include_directories("${PROJECT_SOURCE_DIR}/include")
    link_directories("${PROJECT_SOURCE_DIR}/include")


    include_directories(${CMAKE_INSTALL_FULL_LIBDIR})
    link_directories(${CMAKE_INSTALL_FULL_LIBDIR})

    add_executable(${PROJECT_NAME} ${CPP_SRC})

CMake 与 MSYS2 一起安装。所有 GnuInstallDirs 环境变量都正确并指向 mingw64/ 目录树（即 mingw64/bin、mingw64/include 等）

更新：

我发现了一个类似的问题。这都是关于 libxml2-2.9.4 包的。但是 msys2 使用版本 2.9.9-4 和 mingw64：mingw-w64-x86_64-libxml2 2.9.9-2。我什至尝试将 libexpat.dll.a 移动到 C:/building/msys64/mingw64/lib/ 但得到相同的输出： mingw32-make.exe[2]: *** No rule to make target 'C:/building/msys64/mingw64/lib/libexpat.dll.a', needed by ...

问题还是没有解决！

更新2：

事实证明，这个问题普遍存在于所有 MSYS2 库中。我不太明白如何，但是，显然，他们收集了带有硬编码目录的库.. 我将尝试通过将 msys2 移动到地址来解决它：c:\building

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