Re: target/5505: Doubts about a patch for OSF

["Richard B. Kreckel" <kreckel@ginac.de>]

The following reply was made to PR target/5505; it has been noted by GNATS.

From: "Richard B. Kreckel" <kreckel@ginac.de>
To: Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
Cc: gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: target/5505: Doubts about a patch for OSF
Date: Wed, 20 Feb 2002 18:16:41 +0100 (CET)

 Hi,
 
 On Tue, 19 Feb 2002, Rainer Orth wrote:
 [...]
 > two things: please provide g++ -v output for some individual compilation of
 > CLN, so I can see exactly how gcc was configured.
 > 
 > Besides, could you run one of the crashing programs (tests/tests or
 > tests/exam, I suppose) under ladebug to get at least an idea where it
 > crashes?  While older versions of ladebug simply bail out on gcc compiled
 > code with stabs-in-ECOFF debugging information, recent versions recognize
 > and ignore it, but should get you a stack trace.  If this leads nowhere,
 > we might be able to get some further debugging done with a copy of gdb 5.0
 > hacked up to somewhat work on 5.1.
 
 Err, while trying to debug into the problem I discovered something
 that had escaped my attantion until now: compiling CLN and an example
 (examples/e, or tests/tests or whatever, never mind) with either -O1, -O2
 or -O1 -g resulted in a working test (the linker warnings are of course
 still present) while -O2 -fno-exceptions produced a crashing program.
 Also, these funny warnings:
  as1: Warning: /tmp/ccb8ZbYD.s, line 6: macro instruction used $at
 appear only when I disable exceptions.  I hadn't noticed it so far because
 I *always* export CXXFLAGS="-O2 -fno-exceptions" prior to building
 CLN.  May I ask you how you configured and tested CLN?  You did not
 specify -fno-exceptions, did you?  Does it work when you do so?
 
 Anyways, here is a g++ -v output as you requested:
 
 micky:~/src/patch358/cln-1.1.4/src$ g++ -v -O -I/homes/iphuthep/kreckel/DUX4/include -I../include -I./integer -I./base/digitseq -I./base/digit -Ibase -I./base -c ./integer/ring/cl_0_ring.cc -o cl_0_ring.o
 Reading specs from /homes/iphuthep/kreckel/DUX4/lib/gcc-lib/alphaev67-dec-osf5.1/3.0.3/specs
 Configured with: ../gcc-3.0.3/configure --prefix=/homes/iphuthep/kreckel/DUX4
 Thread model: single
 gcc version 3.0.3
  /homes/iphuthep/kreckel/DUX4/lib/gcc-lib/alphaev67-dec-osf5.1/3.0.3/cc1plus -v -I/homes/iphuthep/kreckel/DUX4/include -I../include -I./integer -I./base/digitseq -I./base/digit -Ibase -I./base -D__GNUC__=3 -D__GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=3 -Dunix -D__osf__ -D_LONGLONG -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__unix__ -D__osf__ -D_LONGLONG -D__SYSTYPE_BSD__ -D_SYSTYPE_BSD -D__unix -D__SYSTYPE_BSD -Asystem=unix -Asystem=xpg4 -D__OPTIMIZE__ -D__STDC_HOSTED__=1 -D__LANGUAGE_C_PLUS_PLUS__ -D__LANGUAGE_C_PLUS_PLU S -D__cplusplus -Acpu=alpha -Amachine=alpha -D__alpha -D__alpha__ -D__alpha_ev6__ -Acpu=ev6 -D__alpha_bwx__ -Acpu=bwx -D__alpha_max__ -Acpu=max -D__alpha_fix__ -Acpu=fix -D__alpha_cix__ -Acpu=cix -D__X_FLOAT ./integer/ring/cl_0_ring.cc -D__GNUG__=3 -D__GXX_DEPRECATED -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -quiet -dumpbase cl_0_ring.cc -O -version -o /tmp/ccHKnWKP.s
 GNU CPP version 3.0.3 (cpplib)
 GNU C++ version 3.0.3 (alphaev67-dec-osf5.1)
         compiled by GNU C version 3.0.3.
 ignoring nonexistent directory "/homes/iphuthep/kreckel/DUX4/alphaev67-dec-osf5.1/include"
 ignoring duplicate directory "base"
 #include "..." search starts here:
 #include <...> search starts here:
  /homes/iphuthep/kreckel/DUX4/include
  ../include
  integer
  base/digitseq
  base/digit
  base
  /homes/iphuthep/kreckel/DUX4/include/g++-v3
  /homes/iphuthep/kreckel/DUX4/include/g++-v3/alphaev67-dec-osf5.1
  /homes/iphuthep/kreckel/DUX4/include/g++-v3/backward
  /usr/local/include
  /homes/iphuthep/kreckel/DUX4/lib/gcc-lib/alphaev67-dec-osf5.1/3.0.3/include
  /usr/include
 End of search list.
  as -g -oldas -c -nocpp -O0 -o cl_0_ring.o /tmp/ccHKnWKP.s
  /homes/iphuthep/kreckel/DUX4/lib/gcc-lib/alphaev67-dec-osf5.1/3.0.3/mips-tfile -v -o cl_0_ring.o /tmp/ccHKnWKP.s
 mips-tfile version 3.0.3
 
 Regards
     -richy.
 -- 
 Richard B. Kreckel
 <Richard.Kreckel@Uni-Mainz.DE>
 <http://wwwthep.physik.uni-mainz.de/~kreckel/>