- For the GHC 7.10 release, one of the major features we planned to
try and merge was DWARF debugging information. This is actually a
small component of larger ongoing work, including adding stack traces
to Haskell executables. While, unfortunately, not all the work can be
merged, we talked with Peter, and made a plan: our hope is to get
Phab:D169 merged, which lays all the groundwork, followed by DWARF
debugging information in the code generators. This will allow tools
like `gdb` or other extensible debuggers to analyze C-- IR accurately
for compiled executables.
 Peter has written up a wiki page, available at SourceNotes,
describing the design. We hope to land all the core infrastructure in
Phab:D169 soon, followed by DWARF information for the Native Code
Generator, all for 7.10.1