Date: Thu, 22 Oct 1998 15:06:50 -0700 (PDT) From: Jin Guojun (FTG staff) <jin@george.lbl.gov> To: mike@smith.net.au Cc: bugs@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: ld for loading dynamic library changed in 3.0-RELEASE? Message-ID: <199810222206.PAA07047@george.lbl.gov>
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> > In loading a dynamic library, it loads entire library regardless
> > if objects are used or not. I do not know if this is a bug or intended
> > goal, but it does not make sense to build libraries at this point.
>
> I'm sorry, but you're not making yourself very clear here. Could you
> explain a little more?
Let's say libtest.so containing three (3) files a.c b.c c.c.
a.c:
a() { printf("a"); }
b.c:
b() { b_printf("b"); }
c.c:
c() { c_printf("c"); }
make them into regular library libtest.a and shared library libtest.so.
creating test file test.c:
main()
{
a();
}
cc -o test test.c -ltest
on all platforms, this cc will be successfully compiled and linked,
but FreeBSD 3.0 complains :
libtest.so: Undefined symbol '_b_printf' referenced from text segment
libtest.so: Undefined symbol '_c_printf' referenced from text segment
However, "cc -o test test.c -static -ltest" is happy when no shared library
is used.
So, it looks like just for linking shared library.
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