[patch,libgfortran,toplevel] Use libbacktrace in libgfortran

[Janne Blomqvist]

On Fri, Aug 14, 2015 at 5:18 PM, FX <fxcoudert@gmail.com> wrote:
>>> Use libbacktrace (instead of our own unwind-based code) to display backtraces from libgfortran
>>> upon error or user request.
>>>
>>> 1. In toplevel Makefile.def, make libgfortran depend on libbacktrace (needs global reviewer
>>> approval)
>>>  2. In gcc/fortran/config-lang.in, add libbacktrace to target_libs
>>>  3. In libgfortran, we remove our own code and substitute calls to libbacktrace
>>>
>>> Bootstrapped and regtested on x86_64-pc-linux-gnu (which has full libbacktrace support) and
>>> x86_64-apple-darwin14 (which has minimal libbacktrace support). OK to commit to trunk?
>>
>> backtrace.ChangeLog is unreadable for me …
>
> Sending again, this time with .txt extension, hoping this makes it go through OK.

Awesome! Looks good. I only have one small bikeshed request: Can you
make the output format match the existing code?

(As there seems to be no GNU (or otherwise) standard how backtraces
should look, in order to minimize user confusion I made the current
code produce output matching gdb backtraces as close as seemed
reasonable.)

Ok with that change.

-- 
Janne Blomqvist