IA32 bootstrap error

[Richard Henderson]

On Sun, Dec 30, 2001 at 06:03:51PM -0500, Richard Kenner wrote:
> It's one thing for it to be required that they *work together*, but a
> vastly different one that the latest version of each is required for
> GCC.  We always used to require that GCC work with an older version of
> each of these tools and I think that's still critical.

GCC will still work with older versions of binutils, and I agree
that GCC should continue to at least bootstrap with them.

GDB is a slightly different issue, in that it is not required to
bootstrap.  For instance, I do not think we should work around bugs
in older versions of GDB.  Essentially, I think that's what the
dwarf2 issue you are experiencing is -- a failure to implement the
entire dwarf2 spec.

And as for the specific question at hand, "Should we have switched
to default to dwarf2 for elf," I would even consider this a special
case in that we *absolutely must* have this work for gcc 3.1.  The
new libstdc++ simply cannot be debugged with stabs, as stabs cannot
represent namespaces.

> I think the SC needs to address this issue.

Perhaps.

> ... and not everybody who is on workstations is in a position to
> constantly get the "latest and greatest" of everything.

I wouldn't say "constantly".  I update gdb irregularly.  Mostly
when I encounter problems and want to see if it's been fixed in
the meantime.  In practice, about once a month.


r~