Re: RFA/RFC: Change Sparc64 gdb.asm tests to use -gdwarf2 instead of -gstabs

[Michael Chastain <mec.gnu@mindspring.com>]

Mark Kettenis <kettenis@chello.nl> wrote:
> Not all right!  Nick, did you actually test this patch?

Yes, he did.

If you keep reading the thread, you can see that I asked Nick to
test with "dwarf-2" and "stabs+", and Nick actually tested with
"dwarf2" and "stabs+" (which source.exp translates to "stabs").
But it looks like Nick's tests did not actually test.  :(

> The subject of this thread is making sparc64 use -gdwarf2 instead of
> -gstabs, but > the patch changes it to -gdwarf-2 (note the extra
> dash).  This isn't accepted by gas on my OpenBSD/amd64 and
> OpenBSD/sparc64 systems, and AFAICT it isn't accepted by the current
> gas from CVS either.

Hmmm.  Ick.  You're right.  Nick tested with "dwarf2" on the command
line, but the patch says "dwarf-2" embedded in the code.  And
the assembler spells "dwarf2" differently from gcc, which spells
it "dwarf-2".  And to make matters more confusing, old assemblers
do not understand "stabs+", but as 2.15 does support stabs+ with
new extensions.

For dwarf-2, I'd like to spell it the same way everywhere, and
translate it at the last moment for binutils.  That way, people
can run the test suite with:

  make check RUNTESTFLAGS="--target_board unix/gdb:debug_flags=dwarf-2"

... and will get dwarf-2 with all languages.

Like this:

  # The GNU assembler spells dwarf-2 as "dwarf2".
  if { ${debug-flags} == "-gdwarf-2" } then {
    set debug-flags "-gdwarf2"
  }

Mark, does that work on your system?

I'll test it on my system later tonight.

Michael C