[Bug fortran/46686] Improve backtracing (unwinding) on non-glibc targets

[jb at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46686

--- Comment #8 from Janne Blomqvist <jb at gcc dot gnu.org> 2011-11-09 19:38:49 UTC ---
(In reply to comment #7)
> (In reply to comment #6)
> > TODO: For Windows, one should be able to make use of SymFromAddr +
> > SymGetLineFromAddr64 + IMAGEHLP_LINE64 to obtain the symbol name
> 
> Kai points out that those only work with PDB and not with DWARF.
> 
> Though, it seems as if addr2line exists also for Windows. Kai thinks that is
> might/should work if one replaces for MINGW the path separator by ";" in
> libgfortran/runtime/main.c's find_addr2line. One probably needs to allow '\\'
> besides '/' under MinGW.

I thought that fork, exec, and pipe, which are necessary for starting and
interacting with the addr2line process are not supported on mingw? But, if it
works, great!