Can dmd compile with my own runtime library?

[Huang F Guan]

Frits van Bommel Wrote:
> 
> Like I said, I switched to just using Tango. It's quite easy to port. In 
> fact, looking at my diff viewer, I mostly just copied the posix.mak 
> files to MyOS.mak and added  -D__MyOS__ to CFLAGS and -version=MyOS to 
> the other *FLAGS and then commented and versioned out some code that 
> needed stuff I didn't support yet (locking) and/or didn't need anyway 
> (floating point support).
> In my kernel sources I added an empty "extern(C) void thread_init()" 
> (with TODO comment), implemented malloc, calloc and free using my kernel 
> allocation functions, and added this into a file called init.d:
> ---
> import multiboot;
> import console;
> import mem.init;
> 
> extern (C) bool rt_init( void delegate( Exception ) dg = null );
> extern (C) bool rt_term( void delegate( Exception ) dg = null );
> 
> int main(char[][] args);
> 
> extern(C) void init() {
> 
>      extern(C) void rtinitExceptionHandler(Exception e) {
>          writefln("Uncaught exception in runtime: {}", e);
>          throw new Exception("Exception during runtime initialization", e);
>      }
> 
>      try {
>          mem_init();
> 
>          rt_init(&rtinitExceptionHandler);
> 
>          /// Shouldn't return...
>          main(multiboot.commandLine());
> 
>      } catch (Exception e) {
>          writefln("Uncaught exception: {}", e);
>      } catch (Object o) {
>          writefln("Uncaught non-Exception exception: {}", o);
>      }
>      writeln("main() returned, halting processor.");
>      for(;;) asm { cli; hlt; }
> }
> ---

Wow! That's interesting! 

You have implemented the exception handling. Haha, I've written the _try and _catch which used in my old C kernel because there is no any keyword about exceptions in pure C.

Have you done the memory management and the thread management in your present kernel?

http://0ginr.com/xiaoxia/
This is web of my old os written in C&C++. There are screenshots on it. Also it has a GUI and it can execute pe files, and a little win32 compatible( can run the VC hello world ).

I like talking about the operating system teckniques with people who interests in os developing too. My projects are all open source, because I like free softwares. 

This is my email: gdxxhg at gmail.com 
Mail me if we can develop os together!!