Mono p/invoke给出'undefined symbol __dso_handle'
问题描述：
我将下面的this文章添加到LDConfig中。仍然得到以下。您可以获得代码here的来源。这是来自二进制启动的日志。Mono p/invoke给出'undefined symbol __dso_handle'
MONO_LOG_LEVEL=debug mono 39dll-4-linux.exe
Mono: gc took 20 usecs
Mono: Assembly Loader probing location: '/usr/lib/mono/4.0/mscorlib.dll'.
Mono: Image addref mscorlib[0x1bd58e0] -> /usr/lib/mono/4.0/mscorlib.dll[0x1bd4c10]: 2
Mono: AOT failed to load AOT module /usr/lib/mono/4.0/mscorlib.dll.so: /usr/lib/mono/4.0/mscorlib.dll.so: cannot open shared object file: No such file or directory
Mono: Assembly Loader loaded assembly from location: '/usr/lib/mono/4.0/mscorlib.dll'.
Mono: Config attempting to parse: '/usr/lib/mono/4.0/mscorlib.dll.config'.
Mono: Config attempting to parse: '/etc/mono/assemblies/mscorlib/mscorlib.config'.
Mono: Assembly mscorlib[0x1bd58e0] added to domain 39dll-4-linux.exe, ref_count=1
Mono: Config attempting to parse: '/etc/mono/config'.
Mono: Config attempting to parse: '/home/nick/.mono/config'.
Mono: Assembly Loader probing location: '39dll-4-linux.exe'.
Mono: Image addref 39dll-4-linux[0x1c520f0] -> /home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/39dll-4-linux.exe[0x1bd3980]: 3
Mono: Assembly 39dll-4-linux[0x1c520f0] added to domain 39dll-4-linux.exe, ref_count=1
Mono: AOT failed to load AOT module /home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/39dll-4-linux.exe.so: /home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/39dll-4-linux.exe.so: cannot open shared object file: No such file or directory
Mono: Assembly Loader loaded assembly from location: '39dll-4-linux.exe'.
Mono: Config attempting to parse: '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/39dll-4-linux.exe.config'.
Mono: Config attempting to parse: '/etc/mono/assemblies/39dll-4-linux/39dll-4-linux.config'.
Mono: Assembly Loader probing location: '39dll-4-linux.exe'.
Mono: AOT failed to load AOT module /home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/39dll-4-linux.exe.so: /home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/39dll-4-linux.exe.so: cannot open shared object file: No such file or directory
Mono: Assembly Ref addref 39dll-4-linux[0x1c520f0] -> mscorlib[0x1bd58e0]: 2
Mono: DllImport attempting to load: 'libWinsockLib'.
Mono: DllImport loading library: '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib'.
Mono: DllImport error loading library '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib: cannot open shared object file: No such file or directory'.
Mono: DllImport loading library: '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib.so'.
Mono: DllImport error loading library '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib.so: undefined symbol: __dso_handle'.
Mono: DllImport loading location: 'libWinsockLib'.
Mono: DllImport error loading library: 'libWinsockLib: cannot open shared object file: No such file or directory'.
Mono: DllImport loading location: 'libWinsockLib.so'.
Mono: DllImport error loading library: '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib.so: undefined symbol: __dso_handle'.
Mono: DllImport loading: 'libWinsockLib'.
Mono: DllImport error loading library 'libWinsockLib: cannot open shared object file: No such file or directory'.
Mono: DllImport unable to load library 'libWinsockLib: cannot open shared object file: No such file or directory'.
Mono: DllImport attempting to load: 'libWinsockLib'.
Mono: DllImport loading library: '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib'.
Mono: DllImport error loading library '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib: cannot open shared object file: No such file or directory'.
Mono: DllImport loading library: '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib.so'.
Mono: DllImport error loading library '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib.so: undefined symbol: __dso_handle'.
Mono: DllImport loading location: 'libWinsockLib'.
Mono: DllImport error loading library: 'libWinsockLib: cannot open shared object file: No such file or directory'.
Mono: DllImport loading location: 'libWinsockLib.so'.
Mono: DllImport error loading library: '/home/nick/Projects/39dll-4-linux/39dll-4-linux/bin/Debug/libWinsockLib.so: undefined symbol: __dso_handle'.
Mono: DllImport loading: 'libWinsockLib'.
Mono: DllImport error loading library 'libWinsockLib: cannot open shared object file: No such file or directory'.
Mono: DllImport unable to load library 'libWinsockLib: cannot open shared object file: No such file or directory'.
Unhandled Exception: System.DllNotFoundException: libWinsockLib
at (wrapper managed-to-native) dll4linux.Net:dllInit()
at dll4linux.SockLib.Init() [0x00000] in <filename unknown>:0
at dll4linux.MainClass.Main (System.String[] args) [0x00000] in <filename unknown>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.DllNotFoundException: libWinsockLib
at (wrapper managed-to-native) dll4linux.Net:dllInit()
at dll4linux.SockLib.Init() [0x00000] in <filename unknown>:0
at dll4linux.MainClass.Main (System.String[] args) [0x00000] in <filename unknown>:0
我完全难住了。任何关于什么错误的想法？
仅供参考，我调用下面的C＃代码：
[DllImport("libWinsockLib", CallingConvention = CallingConvention.Cdecl, EntryPoint = "dllInit")]
public static extern Double dllInit();
最后，我用下面的构建命令来构建39dll-4-Linux项目：
执行的每个.cpp文件：
g++ -fPIC -c -o obj/<filename>.o <filename>.cpp
然后我执行：
ld -G obj/*.o -o 39dll4linux.so
答
没关系！我想到了。事实证明，ld并不是打包和链接共享库的好方法。
相反ld命令，我使用：
g++ -shared obj/*.o -o 39dll-4-linux.so
它的工作原理就像一个魅力！