[Dlang-internal] A Proof of Concept for the baremetal D runtime plans

[Mike Franklin]

On Friday, 3 May 2019 at 23:49:23 UTC, mbalantz wrote:

> Thanks again for getting back to me. Sorry, forgot to include 
> linker output. The errors are Error 42: symbol undefined and 
> "linker exited status 21"
>
> As follows:
>
> PS C:\Users\mbala\workspace\D\pongd_actual\source> dmd pongd.d 
> -odC:\Users\mbala\workspace\D\pongd\out\production\pongd\obj 
> -ofpongd -IC:\Users\mbala\Download
> s\SDL2-2.0.9\x86_64-w64-mingw32\include\SDL2 
> -LC:\Users\mbala\Downloads\SDL2-2.0.9-win32-x64\SDL2.dll
> pongd.d(399): Deprecation: switch case fallthrough - use 'goto 
> case;' if intended
> pongd.d(401): Deprecation: switch case fallthrough - use 'goto 
> case;' if intended
> pongd.d(403): Deprecation: switch case fallthrough - use 'goto 
> default;' if intended
> OPTLINK (R) for Win32  Release 8.00.17
> Copyright (C) Digital Mars 1989-2013  All rights reserved.
> http://www.digitalmars.com/ctg/optlink.html
> OPTLINK : Warning 9: Unknown Option : NOIC
> :\Users\mbala\Downloads\SDL2-2.0.9-win32-x64\SDL2.dll
>  Warning 2: File Not Found 
> :\Users\mbala\Downloads\SDL2-2.0.9-win32-x64\SDL2.dll
> C:\Users\mbala\workspace\D\pongd\out\production\pongd\obj\pongd.obj(pongd)
>  Error 42: Symbol Undefined 
> __D6bindbc3sdl4bindQj8SDL_QuitPUNbNiZv
> C:\Users\mbala\workspace\D\pongd\out\production\pongd\obj\pongd.obj(pongd)
>  Error 42: Symbol Undefined 
> __D6bindbc3sdl4bind8sdlvideo17SDL_DestroyWindowPUNbNiPSQCaQBwQBvQBt10SDL_WindowZv
> C:\Users\mbala\workspace\D\pongd\out\production\pongd\obj\pongd.obj(pongd)
>  Error 42: Symbol Undefined 
> __D6bindbc3sdl4bind9sdlrender19SDL_DestroyRendererPUNbNiPSQCdQBzQByQBw12SDL_RendererZv
> C:\Users\mbala\workspace\D\pongd\out\production\pongd\obj\pongd.obj(pongd)
>  Error 42: Symbol Undefined
[..]

I donwloaded your code again, and the pongd.exe file contains a 
trojan:Win32/Fuery.!cl.  Not sure if that's a false positive, but 
it certainly wasn't encouraging.

What bothers me is why do you have a pongd.exe file if you're 
having trouble linking.  Seems very suspcious.  Where did that 
.exe come from if you're having trouble getting a build?

I see the message from optlink.  This is a linker (created by 
Walter, I think) that is used to link 32-bit code on Windows.  
Try compiling with -w64 instead.  -w64 will create a 64-bit 
binary and will use either LLVM's linker or Visual Studio's 
linker depending on which one it finds first.

Next, I see you are compiling pongd.d, but you're not compiling 
the code in the bindbc directory and I think that is the source 
of your linker errors.  You'll need to compile the bindbc 
directory to object code and link that in to you final executable.

Mike