Re: [rfc] Remove current_gdbarch register handling from symbol readers

[Eli Zaretskii <eliz at gnu dot org>]

> Date: Thu, 21 May 2009 02:52:22 +0200 (CEST)
> From: "Ulrich Weigand" <uweigand@de.ibm.com>
> Cc: gdb-patches@sourceware.org
> 
> Only the Windows/DOS related targets remain.  Of those, all the
> -pe / -mingw / -cygwin / -interix targets actually use the PE
> file format, not "real" COFF, and GCC will default to generate
> stabs or DWARF-2 for those.  It seems possible to use -gcoff to
> force GCC to emit COFF/SDB debug info; I'm not sure if this will
> actually work with PE files ...

Well, I already tried that, and at least with MinGW GCC 3.4.2 that I
have installed, it fails: the binary produced with -gcoff is not
recognized by MinGW GDB 6.8 (it says "not in executable format").
Maybe it's a bug somewhere.

> The only target for which GCC by default generates COFF/SDB debug
> info does indeed appear to be -msdosdjgpp ...

DJGPP GCC uses DWARF-2 by default also, but it fully supports -gcoff.

The problem is that DJGPP does not support expect, so the the test
suite cannot be run.  I can run some tests manually, so if you or
someone else could tell which test may be affected by this change, I
can try running them.

Thanks.