Shared Objects

Glenn MacGregor (gtm@oracom.com)
Tue, 07 Jul 1998 19:12:36 -0400

Hi all,
I am writing a program that uses some shared objects that I have
written. One shared object I have depends on another shared object
which should work fine. On the link line to create this .so I give ld
-shared, -rpath and -rpath-link. So in debugging the program I found
that the dlopen of this .so fails so I step into the dlopen code and bug
until I found the problem. This will be easier if I give an example, so
here goes:
test.so is made.
gtest.so is made and is linked with test.so, so if I do a ldd on
gtest.so I see that test.so is a dependancy but ldd says it can not find
it.
steping through the dlopen call for gtest.so when opening all
the
dependancies I see that the file it is trying to open in
/usr/lib/test.so which is not where it is. It never looks in the dirs
that I specified with the -rpath and the -rpath-link options to the
linker.

I am using version 1.9.2 of ld-linux.so and libdl.so and version
cygnus-2.6 (with BFD 2.6.0.14) of ld.

Any help on this would be great.
Thanks in advance

Glenn 

-- 


Glenn MacGregor


Applications Engineer
Oracom, Inc.
http://www.oracom.com


Tel. +1 978.557.5710
Fax  +1 978.557.5716


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