[adtools] Re: use libgcc.so instead of libgcc_s.so
- From: Jens Langner <Jens.Langner@xxxxxxxxxxxxxx>
- To: adtools@xxxxxxxxxxxxx
- Date: Tue, 08 Jul 2008 10:43:37 +0200
Hello Thomas,
On Tue, 08 Jul 2008 10:27:07 +0200, Thomas Frieden wrote:
[...]
> Jens Langner wrote:
>> errors again. But when I specify -shared everything seems to work. So
>> again, what is this "-use-dynld" all about and why aren't we using
>> "-shared" instead for linking an application against shared objects?
>
> Because -shared is NOT about linking an application against shared
> objects. -shared is used to _create_ dynamically linked objects.
Perhaps there is a difference between using that option during compilation or
during linkage?
> -use-dynld is used to instruct the linker to link against shared objects.
Ok. but when I use only "-use-dynld" during linkage I still get an error about
un unresolved symbol against "_Unwind_SjLj_GetIPInfo" in libgcc_eh.a. And as
soon as I add "-shared" everything is resolved fine and the binary works as
expected.
> Not that this is a big difference- Usually (on Linux), -shared is also
> needed, but the compiler links against shared objects by default.
Well, but as I pointed out, if there is a libgcc.a and libgcc.so it seems that
when "-shared" is specified it still links statically against libgcc.a
instead of using the shared version of libgcc. So perhaps our renaming of
libgcc_s.so to libgcc.so isn't doing so good?!?
cheers,
jens
--
Jens Langner, Dresden/Germany
http://www.jens-langner.de/
If builders built buildings the way programmers wrote programs,
then the first woodpecker that came along would destroy civilization.
-- Weinberg's Second Law
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