单声道和​​非托管code在Ubuntu [英] mono and unmanaged code in ubuntu

问题描述

我使用的是单声道2.10 在Ubuntu 12的x64上运行。 现在我需要知道如何使用非托管code。

I'm using Mono 2.10 running on Ubuntu 12 x64. Now I need to know how to use unmanaged code.

[DllImport("libc.so")]
public static extern int getpid ();

和，下一步我有：

getpid();

和我收到此errorL

and I recieve this errorL

$ MONO_LOG_LEVEL="debug" MONO_LOG_MASK="dll" mono libc_test.exe
Mono: DllImport attempting to load: 'libc.so'.
Mono: DllImport loading library:     '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so'.
Mono: DllImport error loading library '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so: cannot open shared     object file: No such file or directory'.
Mono: DllImport loading library:     '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so'.
Mono: DllImport error loading library     '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so: cannot open shared     object file: No such file or directory'.
Mono: DllImport loading location: 'libc.so'.
Mono: DllImport error loading library: '/usr/lib/x86_64-linux-gnu/libc.so: invalid     ELF header'.
Mono: DllImport loading location: 'libc.so'.
Mono: DllImport error loading library: '/usr/lib/x86_64-linux-gnu/libc.so: invalid     ELF header'.
Mono: DllImport loading: 'libc.so'.
Mono: DllImport error loading library '/usr/lib/x86_64-linux-gnu/libc.so: invalid     ELF header'.
Mono: DllImport unable to load library '/usr/lib/x86_64-linux-gnu/libc.so: invalid     ELF header'.
Mono: DllImport attempting to load: 'libc.so'.
Mono: DllImport loading library:     '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so'.
Mono: DllImport error loading library     '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so: cannot open shared     object file: No such file or directory'.
Mono: DllImport loading library:     '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so'.
Mono: DllImport error loading library         '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so: cannot open shared     object file: No such file or directory'.
Mono: DllImport loading location: 'libc.so'.
Mono: DllImport error loading library: '/usr/lib/x86_64-linux-gnu/libc.so: invalid     ELF header'.
Mono: DllImport loading location: 'libc.so'.
Mono: DllImport error loading library: '/usr/lib/x86_64-linux-gnu/libc.so: invalid ELF header'.
Mono: DllImport loading: 'libc.so'.
Mono: DllImport error loading library '/usr/lib/x86_64-linux-gnu/libc.so: invalid ELF header'.
Mono: DllImport unable to load library '/usr/lib/x86_64-linux-gnu/libc.so: invalid ELF header'.
Hello Linux!
Mono: DllImport attempting to load: 'libc.so'.
Mono: DllImport loading library: '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so'.
Mono: DllImport error loading library '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so: cannot open shared     object file: No such file or directory'.
Mono: DllImport loading library: '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so'.
Mono: DllImport error loading library '/home/ibaranov/Documents/MONO/libc_test/libc_test/bin/Debug/libc.so: cannot open shared object file: No such file or directory'.
Mono: DllImport loading location: 'libc.so'.
Mono: DllImport error loading library: '/usr/lib/x86_64-linux-gnu/libc.so: invalid ELF header'.
Mono: DllImport loading location: 'libc.so'.
Mono: DllImport error loading library: '/usr/lib/x86_64-linux-gnu/libc.so: invalid ELF header'.
Mono: DllImport loading: 'libc.so'.
Mono: DllImport error loading library '/usr/lib/x86_64-linux-gnu/libc.so: invalid ELF header'.
Mono: DllImport unable to load library '/usr/lib/x86_64-linux-gnu/libc.so: invalid ELF header'.

Unhandled Exception: System.DllNotFoundException: libc.so
  at (wrapper managed-to-native) libc_test.LibC:getpid ()
  at libc_test.MainClass.Main (System.String[] args) [0x00000] in <filename unknown>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.DllNotFoundException: libc.so
  at (wrapper managed-to-native) libc_test.LibC:getpid ()
  at libc_test.MainClass.Main (System.String[] args) [0x00000] in <filename unknown>:0 

我一直在试图解决这个问题，很长一段时间，但没有我曾尝试帮助我。 我使用的：

I've been trying to resolve this problems for a long time, but nothing I have tried helps me. I use:

 dlopen("libc.so", RTLD_NOW);

也许我需要libc.so编为64？

Maybe I need libc.so compiled for x64?

推荐答案

这应该是

[的DllImport（libc.so.6的）]

或只是

[的DllImport（libc中）]

的libc是从/ etc /单声道/配置一个别名， 在GNU / Linux系统： ... ＆LT; dllmap DLL =libc中的目标=libc.so.6的OS = \＆GT的窗口！; ...

"libc" is a alias from /etc/mono/config, On GNU/Linux system: ... <dllmap dll="libc" target="libc.so.6" os="!windows"\> ...

这篇关于单声道和​​非托管code在Ubuntu的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！