Why are we not using libbacktrace for backtrace?

[Yuxuan Shui]

On Thursday, 14 June 2018 at 17:26:50 UTC, Johannes Pfau wrote:
> Am Thu, 14 Jun 2018 01:19:30 +0000 schrieb Yuxuan Shui:
>
>> Just ran into a problem where program will crash during stack 
>> trace. Turns out not only does druntime not support compressed 
>> debug info, it cannot handle it at all.
>> 
>> So I was thinking why don't we use a existing and proven 
>> library for this, instead of roll our own?
>
> GDC uses libbacktrace since 2013: 
> https://github.com/D-Programming-GDC/ 
> GDC/blob/master/libphobos/libdruntime/gcc/backtrace.d
>
> I think the main problem for DMD/LDC is that libbacktrace is 
> not an installed library, it's only available while building 
> GCC.

libbacktrace is a standalone library: 
https://github.com/ianlancetaylor/libbacktrace

GCC is using it.