NativeAOT NativeLibrary example crash at runtime

[VolodymyrBS]

I have tried to use NativeAOT NativeLibrary example but got an exception at runtime on Windows and WSL:
Windows
Exeption:

Exception thrown: read access violation. this was nullptr.

Stack Trace:

Enviroment:
OS Windows 10.0.19041.0
VisualStudio 16.8.0 Preview 5.0
Microsoft.DotNet.ILCompiler 6.0.0-alpha.1.20525.1

WSL:
gdb message:

(gdb) r
Starting program: a.out
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
RuntimeInstance::GetThreadStore (this=0x0) at /__w/1/s/src/coreclr/src/nativeaot/Runtime/RuntimeInstance.cpp:50
50      /__w/1/s/src/coreclr/src/nativeaot/Runtime/RuntimeInstance.cpp: No such file or directory.
(gdb) bt
#0  RuntimeInstance::GetThreadStore (this=0x0) at /__w/1/s/src/coreclr/src/nativeaot/Runtime/RuntimeInstance.cpp:50
#1  0x00007fffff08ddc3 in GetThreadStore () at /__w/1/s/src/coreclr/src/nativeaot/Runtime/threadstore.cpp:40
#2  ThreadStore::AttachCurrentThread (fAcquireThreadStoreLock=true) at /__w/1/s/src/coreclr/src/nativeaot/Runtime/threadstore.cpp:136
#3  0x00007fffff08d650 in Thread::ReversePInvokeAttachOrTrapThread (this=0x409700, pFrame=0x7ffffffedf18) at /__w/1/s/src/coreclr/src/nativeaot/Runtime/thread.cpp:1200
#4  0x00007fffff22f6c6 in NativeLibrary_NativeLibrary_Class1__Add (a=0, b=1) at Class1.cs:11
#5  0x00000000004012b3 in callSumFunc (path=0x402004 "./bin/release/net5.0/linux-x64/native/NativeLibrary.so", funcName=0x402067 "add", firstInt=2, secondInt=8) at LoadLibrary.c:64
#6  0x00000000004011fe in main () at LoadLibrary.c:38

Enviroment:
OS Debian GNU/Linux 10
clang 7.0.1-8+deb10u2 (tags/RELEASE_701/final)
Microsoft.DotNet.ILCompiler 6.0.0-alpha.1.20525.1

[MichalStrehovsky]

The runtime is not initialized. It needs #113 but that one is still not complete and I didn't have time to work on this yet.

We'll want to just do #113 (comment) if you would like to take this on.

Otherwise please use Native AOT from the CoreRT repo for now. (It's a different NuGet feed and different version.)

[jkotas]

This was fixed by #270. The fix will be in the next daily build. Thank you for reporting this!

[wegylexy]

What about static lib? How to initialize the runtime when it is static-linked into another native DLL?

[MichalStrehovsky]

What about static lib? How to initialize the runtime when it is static-linked into another native DLL?

Can you try adding this switch to the linker command line (when you link the resulting DLL):

On Windows:

/INCLUDE:CoreRT_StaticInitialization

On Linux:

--require-defined,CoreRT_StaticInitialization

On macOS:

-u,_CoreRT_StaticInitialization

[wegylexy]

@MichalStrehovsky no, it's only available to shared lib, according to https://github.com/jkotas/runtimelab/blob/bc12ad23fe050a8efa06506c071d2fa8d8fc9172/src/coreclr/nativeaot/Bootstrap/main.cpp#L209-L224

[MichalStrehovsky]

We probably don't include (lib)bootrapperdll(.a/.lib) in the static library so you might need to specify it at the linker command line as well.