Date: Sun, 25 Aug 2002 19:40:03 -0700 (PDT) From: Jay Sachs <jay@eziba.com> To: freebsd-ports@FreeBSD.org Subject: Re: ports/41961: jikes 1.16 core dumps on FreeBSD (but not on RedHat Linux 7.3) Message-ID: <200208260240.g7Q2e3fd027422@freefall.freebsd.org>
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The following reply was made to PR ports/41961; it has been noted by GNATS.
From: Jay Sachs <jay@eziba.com>
To: freebsd-gnats-submit@FreeBSD.org, archie@FreeBSD.org
Cc:
Subject: Re: ports/41961: jikes 1.16 core dumps on FreeBSD (but not on RedHat
Linux 7.3)
Date: Sun, 25 Aug 2002 22:40:37 -0400
Freshly -supped ports tree, and -stable as of Aug 7.
Attempt 1: I build the port with no optimization and debugging
on, as follows:
make CXXFLAGS='-g -pipe'
No core dump, just a (jikes) warning about use of '$' in an identifier.
So apparently the optimization in the 4.6-stable c++ compiler is
a bit flakey.
Attempt 2: Turn on optimization, building jikes as follows:
make CXXFLAGS='-g -O -pipe'
Ok, got core dump. Ran gdb, and the stack was filled
with near-endless repetition of the frame pair
#177 0x82071d2 in Semantic::ProcessBinaryExpression (this=0x8d18000,
expr=0x8d1e474) at expr.cpp:6640
#178 0x81f30c8 in Semantic::ProcessPLUS (this=0x8d18000, expr=0x8d1e4c0)
at semantic.h:1398
883 frames in total. So it looks like the optimizer inserted an infinite
loop. It looks like the gcc 2.95.4 import of June 20 could be the
culprit. The RELENG_4_6 branches (4.6-RELEASE, 4.6.1, 4.6.2 etc)
do NOT have 2.95.4 imported, so if someone could test one of those
systems we could pretty much nail down that it's a 2.95.4 optimizer bug.
jay
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