[Linux-ia64] Internal Error compiling ddd

[Linux-ia64] Internal Error compiling ddd

[Michael Madore]

Hi,

I get the following error when compiling ddd-3.2.1 on IA-64:

c++  -DHAVE_CONFIG_H -DNDEBUG -O2 -g -W -Wall -trigraphs  -c
-I. -I. -I./.. -isystem /usr/X11R6/include -o DataDisp.o DataDisp.C
BoxPoint.h: In function `void DataDisp::newCB (_WidgetRec *, void *, void
*)':
BoxPoint.h:1352: Internal compiler error in `fix_lexical_addr', at
function.c:5409
Please submit a full bug report.

The version of gcc is 2.9-ia64-000216-final.

Let me know if I can provide better info to debug this.

Mike Madore
Software Engineer
TurboLinux, Inc.

Re: [Linux-ia64] Internal Error compiling ddd

[Jim Wilson]

	BoxPoint.h:1352: Internal compiler error in `fix_lexical_addr', at
	function.c:5409

Probably a known bug with the C++ front end in the February (000216)
toolchain.  I'd suggest trying different optimization options -O1 or -O0.

The February toolchain is based on an FSF snapshot from Jan 3, and there were
unfortuntely some instabilities in the C++ front end at that time due to
C++ front end development.  These bugs have all been fixed long ago.  But
since they were fixed by additional C++ front end development, the patches
aren't really suitable for a released toolchain.

I think the best fix for this is to make a new release, and hope that the new
release has a more stable C++ front end.  Unfortunately, this is likely to
continue to be a problem until the FSF makes a release, since there continues
to be a lot of development work going into the C++ front end and other parts
of gcc.

Red Hat is working on a new toolchain release for the ia64-linux project.  We
made a CVS branch for the release last Monday, based on the July 10 FSF gcc
snapshot, and we are now testing the compiler and fixing bugs.  I could make
a pre-release at any time, but I think we need to fix a couple of more bugs
before that will be really useful.

Jim

Re: [Linux-ia64] Internal Error compiling ddd

[H . J . Lu]

On Mon, Jul 24, 2000 at 12:55:22PM -0700, Jim Wilson wrote:
> 
> Red Hat is working on a new toolchain release for the ia64-linux project.  We
> made a CVS branch for the release last Monday, based on the July 10 FSF gcc
> snapshot, and we are now testing the compiler and fixing bugs.  I could make
> a pre-release at any time, but I think we need to fix a couple of more bugs
> before that will be really useful.
> 

Hi, Jim,

I assume you are aware that EH of glibc/gcc is currently broken under
ia64. I have proprosed a fix:

http://gcc.gnu.org/ml/gcc/2000-07/msg00168.html
http://gcc.gnu.org/ml/gcc-bugs/2000-07/msg00117.html

Could you please make sure the new ia64 toolchain is ok?

Thanks.


H.J.

Re: [Linux-ia64] Internal Error compiling ddd

[Jim Wilson]

I am aware of your messages on this subject to the FSF gcc mailing lists.
However, none of your messages actually report any bugs.  You just claim
that bugs exist and propose solutions for them.  Your proposed solutions
involve a redesign of gcc, are highly controversial, and very unlikely to be
adopted anytime soon.  Thus I am in a position where I can't fix anything
because I don't have anything to work with.

As I understand it, glibc needs to know about frame_object which is a gcc
internal variable.  The gcc hackers didn't know about this until you pointed
it out.  frame_object had to be changed in gcc to support the Intel defined
IA-64 exception handling model.  Thus glibc will have to be changed to match
the gcc changes.  I see nothing in gcc to fix.  Since I'm not doing glibc
work, you need to report this to one of the glibc maintainers, e.g. Jes or
Ulrich, and ask them to fix glibc.  Perhaps this work has already been done
for glibc 2.2, I don't know.  If so, then there is nothing left to fix.

glibc 2.1.3 and the current FSF gcc sources would still be broken, but it
has never been anyone's intent to make that work.  You should be using the
February (000216) release with glibc 2.1.3.

Jim