Linux环境 Mono嵌入C程序

Install Mono

sudo apt install mono-devel

If you built Mono from source and installed into /usr/local, make sure:

headers: /usr/local/include/mono-2.0
libs: /usr/local/lib

Minimal C# code to embed

Create test.cs

using System;

public class Test {
    public static void Main(string[] args) {
        Console.WriteLine("Hello from C# inside Mono!");
    }
}

Compile it:

mcs test.cs

Minimal C host program

Create embed.c

#include <mono/jit/jit.h>
#include <mono/metadata/assembly.h>
#include <mono/metadata/debug-helpers.h>

int main(int argc, char* argv[])
{
    // Initialize Mono runtime
    MonoDomain *domain = mono_jit_init("my_domain");

    // Load assembly
    MonoAssembly *assembly = mono_domain_assembly_open(domain, "test.exe");
    if (!assembly) {
        printf("Failed to load assembly\n");
        return 1;
    }

    // Run the assembly's entry point
    mono_jit_exec(domain, assembly, argc, argv);

    // Cleanup
    mono_jit_cleanup(domain);

    return 0;
}

gcc embed.c -o embed \
  -I/usr/local/include/mono-2.0 \
  -L/usr/local/lib \
  -lmono-2.0

./embed

Config配置文件

/etc/mono/cofig

<configuration>
	<dllmap dll="i:cygwin1.dll" target="libc.so.6" os="!windows" />
	<dllmap dll="libc" target="libc.so.6" os="!windows"/>
	<dllmap dll="intl" target="libc.so.6" os="!windows"/>
	<dllmap dll="intl" name="bind_textdomain_codeset" target="libc.so.6" os="solaris"/>
	<dllmap dll="libintl" name="bind_textdomain_codeset" target="libc.so.6" os="solaris"/>
	<dllmap dll="libintl" target="libc.so.6" os="!windows"/>
	<dllmap dll="i:libxslt.dll" target="libxslt.so" os="!windows"/>
	<dllmap dll="i:odbc32.dll" target="libodbc.so.2" os="!windows"/>
	<dllmap dll="i:odbc32.dll" target="libiodbc.dylib" os="osx"/>
	<dllmap dll="oci" target="libclntsh.so" os="!windows"/>
	<dllmap dll="db2cli" target="libdb2_36.so" os="!windows"/>
	<dllmap dll="MonoPosixHelper" target="$mono_libdir/libMonoPosixHelper.so" os="!windows" />
	<dllmap dll="System.Native" target="$mono_libdir/libmono-native.so" os="!windows" />
	<dllmap dll="System.Net.Security.Native" target="$mono_libdir/libmono-native.so" os="!windows" />
	<dllmap dll="System.Security.Cryptography.Native.Apple" target="$mono_libdir/libmono-native.so" os="osx" />
	<dllmap dll="libmono-btls-shared" target="$mono_libdir/libmono-btls-shared.so" os="!windows" />
	<dllmap dll="i:msvcrt" target="libc.so.6" os="!windows"/>
	<dllmap dll="i:msvcrt.dll" target="libc.so.6" os="!windows"/>
	<dllmap dll="sqlite" target="libsqlite.so.0" os="!windows"/>
	<dllmap dll="sqlite3" target="libsqlite3.so.0" os="!windows"/>
	<dllmap dll="libX11" target="libX11.so.6" os="!windows" />
	<dllmap dll="libgdk-x11-2.0" target="libgdk-x11-2.0.so.0" os="!windows"/>
	<dllmap dll="libgdk_pixbuf-2.0" target="libgdk_pixbuf-2.0.so.0" os="!windows"/>
	<dllmap dll="libgtk-x11-2.0" target="libgtk-x11-2.0.so.0" os="!windows"/>
	<dllmap dll="libglib-2.0" target="libglib-2.0.so.0" os="!windows"/>
	<dllmap dll="libgobject-2.0" target="libgobject-2.0.so.0" os="!windows"/>
	<dllmap dll="libgnomeui-2" target="libgnomeui-2.so.0" os="!windows"/>
	<dllmap dll="librsvg-2" target="librsvg-2.so.2" os="!windows"/>
	<dllmap dll="libXinerama" target="libXinerama.so.1" os="!windows" />
	<dllmap dll="libasound" target="libasound.so.2" os="!windows" />
	<dllmap dll="libcairo-2.dll" target="libcairo.so.2" os="!windows"/>
	<dllmap dll="libcairo-2.dll" target="libcairo.2.dylib" os="osx"/>
	<dllmap dll="libcups" target="libcups.so.2" os="!windows"/>
	<dllmap dll="libcups" target="libcups.dylib" os="osx"/>
	<dllmap dll="i:kernel32.dll">
		<dllentry dll="__Internal" name="CopyMemory" target="mono_win32_compat_CopyMemory"/>
		<dllentry dll="__Internal" name="FillMemory" target="mono_win32_compat_FillMemory"/>
		<dllentry dll="__Internal" name="MoveMemory" target="mono_win32_compat_MoveMemory"/>
		<dllentry dll="__Internal" name="ZeroMemory" target="mono_win32_compat_ZeroMemory"/>
	</dllmap>
	<dllmap dll="gdiplus" target="libgdiplus.so.0" os="!windows"/>
	<dllmap dll="gdiplus.dll" target="libgdiplus.so.0"  os="!windows"/>
	<dllmap dll="gdi32" target="libgdiplus.so.0" os="!windows"/>
	<dllmap dll="gdi32.dll" target="libgdiplus.so.0" os="!windows"/>
</configuration>

参考资料

https://gcc.gnu.org/onlinedocs/gcc/Link-Options.html
https://gcc.gnu.org/onlinedocs/gcc/Directory-Options.html

https://www.mono-project.com/docs/advanced/embedding/

https://github.com/mono/mono/issues/20183

'System.Console' threw an exception(embedding mono)