C#•2mo ago

✅ Help with using C++ library in C# code

hello, I am trying to use a c++ library using a .dylib (mac dll) and its giving me a weird error that i can't find a lot of info on, maybe because its unique to osx?

willow@willows-mbp csharp % set DYLD_INSERT_LIBRARIES=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/15.0.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib
willow@willows-mbp csharp % dotnet run
==10641==ERROR: Interceptors are not working. This may be because AddressSanitizer is loaded too late (e.g. via dlopen). Please launch the executable with:
DYLD_INSERT_LIBRARIES=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/15.0.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib
"interceptors not installed" && 0

willow@willows-mbp csharp % set DYLD_INSERT_LIBRARIES=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/15.0.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib
willow@willows-mbp csharp % dotnet run
==10641==ERROR: Interceptors are not working. This may be because AddressSanitizer is loaded too late (e.g. via dlopen). Please launch the executable with:
DYLD_INSERT_LIBRARIES=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/15.0.0/lib/darwin/libclang_rt.asan_osx_dynamic.dylib
"interceptors not installed" && 0

as u can see I tried setting the environment variable to the asan dylib but it didn't work. Idk why asan is coming up at all, I compiled the dylib without address sanitization. The error only occurs when I try to call this function:

[DllImport("libSpaceGame.dylib")]
public static extern void Run();

[DllImport("libSpaceGame.dylib")]
public static extern void Run();

ive never tried to use c++ with c# before, so im very new to this. Any insight is appreicated! The dylib is in the correct folder, as it complained about that before and I moved it

10 Replies

jcotton42•2mo ago

Are the functions in the header in an external C block?

mtreit•2mo ago

I don't know much about this topic but don't use you export to set an environment variable?

butteredcoffeeOP•2mo ago

honestly idk much about environment variables [LibraryImport("libSpaceGame.dylib")] also tried this and it gave the same error just to test, I am compiling this:

#include <stdio.h>

void run()
{
    printf("test");
}

#include <stdio.h>

void run()
{
    printf("test");
}

sorry i dk if that answers ur question

jcotton42•2mo ago

Is that a .c or .cpp file? But also I don’t see the necessary stuff to export the function.

butteredcoffeeOP•2mo ago

.cpp oh i need to export it in cpp how would I do that do you have a resource? im not finding what I need

jcotton42•2mo ago

$cpp

MODiX•2mo ago

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butteredcoffeeOP•2mo ago

oh lol fair

butteredcoffeeOP•2mo ago

https://medium.com/@tintinwinata/bridging-worlds-a-practical-guide-to-c-and-c-integration-2ef6989f6ede gonna read this ty for the direction

Medium

Bridging Worlds: A Practical Guide to C++ and C# Integration

In the world of software development, choosing the right tool for the job is paramount. C# and the .NET ecosystem offer incredible…

butteredcoffeeOP•2mo ago

ok it worked with the proper c++ thanks!

#define API __attribute__((visibility("default")))

extern "C" {
 API void Run() {
    printf("HELLOOO");
 }
}

#define API __attribute__((visibility("default")))

extern "C" {
 API void Run() {
    printf("HELLOOO");
 }
}

just for good answer practice I used this code on mac

Gaming

Programming

✅ Help with using C++ library in C# code

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