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On Mon, 15 Sep 2003 07:42:19 -0500, Muthu_T@xxxxxxxx wrote:
> I have a statically linked application which dynamically loads the
> library. This application compiled in AS2.1 and runs fine with AS2.1 and
> RH 8.0. But in RH 9.0 it gives relocation error.
>
> AS2.1 uses GCC 2.96.
> RH9.0 uses GCC 3.2.2.
And more important for a statically linked binary which calls
dlopen(), a different version of glibc.
> -----[ mystatic.cpp ]----------------
>
> #include <iostream.h>
> #include <dlfcn.h>
>
> #define LIBNAME "libz.so"
>
> int main()
> {
> void *pHandle = dlopen(LIBNAME, RTLD_NOW);
> cout << "After Loading " << LIBNAME << endl << dlerror() <<
> endl;
You should really check the pointer returned by dlerror() since it can
be NULL. Don't rely on your system to print "(null)".
> if (pHandle) {
> cout << "Loaded Successfully!" << endl;
> dlclose(pHandle);
> cout << "Unloaded Successfully!" << endl;
> }
> return 0;
> }
>
>
> -----[ output in AS2.1 & 8.0 ] --------------------
>
> # g++ -static mystatic.cpp -ldl
> # ./a.out
> After Loading libz.so
> (null)
> Loaded Successfully!
> Unloaded Successfully!
>
> ----[ output in RH 9.0 ] --------------------------
> # ./a.out
> After Loading libz.so
> /lib/tls/libc.so.6: unexpected reloc type 0x0e
You need to recompile the binary on RHL 9 or link all your stuff
statically.
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