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Re: Problem with linker with binutils-040414


> > I was using a version ld that I build several weeks ago from the cvs
> > source (don't know the exact date), and that works fine.
> # ./ld -V

Version that works fine:
GNU ld version 2.15.90 20040303


> It looks like old_bfd is NULL, which isn't supposed to happen. Can
> you find out why old_bfd is NULL at elflink.c:3641? We need a testcase.
> You can print out what `h' points to at elflink.c:3641 and find out
> where the symbol is defined and referenced. You should be able to
> construct a very small testcase from there.

I now have a very small test case assuming you have a java JDK installed.   

test.cxx:
#include <jni.h>
int main (int argc, char *argv[])
{
}

Command line to build:
g++ -I/opt/jdk1.4.2/include  -I/opt/jdk1.4.2/include/linux tmp.cxx \
-L/opt/jdk1.4.2/jre/lib/i386/client -ljvm

It looks like it's having some sort of issue with the shared libraries 
that Sun ships with the JDKs.    The libraries from the blackdown 1.4.1 
jdk work fine.  I tried Sun's 1.3.1, 1.4.2, 1.4.1, and 1.4.0_02.  They 
all have the same error.   Obviously, I cannot rebuild the Sun stuff so 
fixing the linker is the only real option.    With my little "null check" 
fix,  I consistently get the warnings:
/usr/bin/ld: Warning: size of symbol `getrlimit@GLIBC_2.0' changed from 59 
in (null) to 62 in /lib/libc.so.6
/usr/bin/ld: Warning: size of symbol `realpath@GLIBC_2.0' changed from 54 
in (null) to 66 in /lib/libc.so.6
/usr/bin/ld: Warning: size of symbol 
`pthread_kill_other_threads_np@GLIBC_2.0' changed from 141 in (null) to 5 
in /lib/libpthread.so.0

(BTW: I'm trying to compile/link a bunch of JNI code so I need to link 
with the jvm)

Thanks!

-- 
J. Daniel Kulp
dan@kulp.com


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