Date: Thu, 31 Aug 2000 18:28:07 +0200 (CEST) From: pfeifer@dbai.tuwien.ac.at To: FreeBSD-gnats-submit@freebsd.org Cc: pfeifer@dbai.tuwien.ac.at Subject: gnu/20966: binutils break C++ in GCC 2.95.x and GCC-current Message-ID: <200008311628.SAA55389@taygeta.dbai.tuwien.ac.at>
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>Number: 20966
>Category: gnu
>Synopsis: binutils break C++ in GCC 2.95.x and GCC-current
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Aug 31 09:30:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator: Gerald Pfeifer
>Release: FreeBSD 4.1-RELEASE i386
>Organization:
>Environment:
FreeBSD deneb.dbai.tuwien.ac.at 4.1-RELEASE FreeBSD 4.1-RELEASE #0:
Thu Jul 27 04:44:16 GMT 2000
root@usw4.freebsd.org:/usr/src/sys/compile/GENERIC i386
>Description:
[ This is a resend of 20942 which was forwarded to the mailing
list but then lost by the GNATS machinery. Suggested by sheldonh. ]
Apparently binutils as of 4.1-RELEASE break static constructors
in C++ for GCC 2.95.x and GCC-current. Both work fine (w/o FreeBSD
patches) on FreeBSD 3.x and also GCC 2.95.2 as shipped with
4.1-RELEASE is fine.
You'll experience the problem only, if you build GCC by yourself.
I assume that there is a problem (change) in binutils on 4.1-RELEASE
that causes this breakage and that has been fixed (also made) in the
imported version of GCC?
>How-To-Repeat:
Compile and run the following small C++ program with either GCC 2.95.2
(original GNU version, w/o FreeBSD patches) or GCC-current and you'll
get a core dump as the static constructor is not invoked.
GCC as shipped with 4.1-RELEASE is not affected.
-------- cut --------
#include <map>
#include <iostream>
struct NAMESTABLE
{
map<int,int> lookup;
NAMESTABLE()
: lookup()
{
cout << "constructor" << endl;
}
void add(const char *s, const int &item)
{
cout << s << endl;
lookup.insert(pair<int,int>(item,0));
}
};
NAMESTABLE q;
int main() {
NAMESTABLE p;
p.add("auto",1);
q.add("static",1);
}
>Fix:
1. Fix (the local copy?) of binutils.
2. If it is a GCC bug (which I don't believe) that has been fixed in
the FreeBSD tree, submit the change back to the GCC maintainers.
>Release-Note:
>Audit-Trail:
>Unformatted:
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