Article View: gnu.g++.bug
Article #1459An old problem with "Hello world"
From: Andrew Vignaux
Date: Sun, 25 Sep 1988 05:59
Date: Sun, 25 Sep 1988 05:59
39 lines
2021 bytes
2021 bytes
Hi, I have a problem with GNU C++ version 1.22.1 (vax) compiled by GNU C
version 1.22 with GNU as and ld++. This is not a bug report -- it should
be old news :-).
The problem has been reported in bug-g++ but I missed any fix (if it was
posted) before I had to unsubscribe due to the volume. I would like to
know the way this has been fixed in later versions.
hello.cc
#include <stream.h>
main()
{
cout << "Hello world\n";
}
/usr/local/lib/gcc-c++ /tmp/cc020557.cpp -quiet -dumpbase hello.cc -noreg \
-version -o /tmp/cc020557.s
produces no output [GUESS ALERT] because the constructor for cout is not
being run. This is because the only symbol connecting "hello.o" with
"stream.o" in "libg++.a" is the Common symbol "cout" and the loader does
not force stream.o to be linked in this case. The ld++ ctor collecter
misses the fact that __GLOBAL_$I$stream_cc needs to be included in the
___CTOR_LIST__. Things work fine if you write:
cout << "You are number " << 6;
because ld++ has to link in stream.o. Ok, ok... you knew all that :-)
My questions is "what was the fix". If it can be described in a few
paragraphs of english or a few pages of code I would love to see it. I
already know that the best way to solve my problem is to upgrade to the
latest version.
Please respond by email as I am no longer subscribed to the list/group.
Thanks.
Andrew.
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Path: arc1-ca.pugleaf.net!utzoo!telly!ddsw1!lll-winken!uunet!tut.cis.ohio-state.edu!comp.vuw.ac.nz!andrew From: andrew@comp.vuw.ac.nz (Andrew Vignaux) Newsgroups: gnu.g++.bug Subject: An old problem with "Hello world" Message-ID: <8809250559.AA01798@comp.vuw.ac.nz> Date: 25 Sep 88 05:59:16 GMT Sender: daemon@tut.cis.ohio-state.edu Distribution: gnu Organization: Comp Sci, Victoria University, Wellington, New Zealand. Lines: 38