A glibc dynamic linker or gld bug?

[hjl@lucon.org (H.J. Lu)]

Hi,

Here is a testcase for a glibc dynamic linker or gld bug:

# make
cc -shared -o libfoo.so -fPIC -O -g foo.c
cc -o bar1.o -c -fPIC -O -g bar.c
cc -o foo1 -O -g libfoo.so main.c bar1.o -Wl,-rpath,.
cc -o bar2.o -c -O -g bar.c
cc -o foo2 -O -g libfoo.so main.c bar2.o -Wl,-rpath,.
for f in foo1 foo2; do echo "Running: $f"; ./$f; \
  if [ $? != 0 ]; then echo Failed; fi; done
Running: foo1
Failed
Running: foo2

The same testcase ran fine under Solaris/x86 and Solaris/Sparc even
with the GNU ld. I suspect the bug is in the weak symbol handling 
in the glibc dynamic linker. Since the Solaris dynamic linker treats
weak as strong, the bug may also be in gld.

-- 
H.J. Lu (hjl@gnu.org)
--
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end