It is impossible to debug code compiled with dmd

[Fawzi Mohamed]

On 31-mar-10, at 17:09, Robert Clipsham wrote:

> On 31/03/10 10:41, Eldar Insafutdinov wrote:
>> On Linux dmd outputs faulty debug info.
>
> There are several bugs in the debug info on linux, one of them I've  
> fixed (for most cases ie. anything that requires phobos, I'm working  
> on the other cases ie. anything that needs funky libraries that use  
> a lot of complicated function pointers), and another one you've sent  
> me a massive test case for which I'm working down to a manageable  
> size for a bug report now (I'd have done it by now, your make file  
> doesn't play nicely with my multilib system though ;)). Other than  
> those 2 bugs I don't know what else is blocking debug info on  
> linux... I'm becoming quite familiar with DWARF/dmd's backend code  
> for DWARF through all this debugging, so if I can get these bugs  
> fixed I'd be happy to work on any others while I have time.
>
>> On Windows optlink crashes when building code in debug. Current
>> situation is a complete disaster.
>
> OPTLINK still has problems, hopefully this situation will improve as  
> it gradually gets ported to C and eventually open sourced (or at  
> least we can hope that happens ;)). If not I guess we need to either  
> write a new linker, or a new backend for dmd so it can output COFF  
> and use another linker.

a new backend like gcc (of gdc) or even better llvm (ldc)?
for linux that was already done, and for D 1.0 it works well (I am  
using linux x86_64).

and debugging normally works, even tango's stacktrace...

windows is indeed a different story (but I know some people use gdc).

> Hopefully we can sort this situation out and get debug info for D on  
> a par with C/C++ :)