ld.so.1: dlopen: fatal: foo: can't find symbol

[Christopher Lintz]

I would greatly appreciate any help that will get me past this problem.  I have tried Libtool
and gcc directly on Solaris 2.6 to try and build a shared library that can be called by
dlopen()...  This is the exact error I get:

 

ld.so.1: dlopen: fatal: foo: can't find symbol

 

Here is the exact command I use to build the shared object and the main program that
does the dlopen():

 

libtool gcc -g -O -c foo.cpp
libtool gcc -module -g -O -o foo.lo -rpath /home/cjl/libs
gcc -g -o -c main.cpp
gcc -o main main.o -ldl

 

**********Here is my exact main.cpp************
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>

 

int main()
{    
   void *handle;
   int (*fptr)();
   char* error;

 

   handle = dlopen("/home/cjl/.libs/foo.so.0", RTLD_LAZY );
   if(!handle)
   {
      fputs( dlerror(), stderr);
      exit( -1 );
   }

 

   if ((fptr = (int (*) () )dlsym(RTLD_DEFAULT, "foo")) != NULL)
        (*fptr)();
   else
   if( (error = dlerror()) != NULL)
   {
      fputs(error, stderr);
      exit(-1);
   }
   dlclose(handle);
}
********************************

 

**************Here is my exact foo.cpp**************
#include "GCC001.h"

 

int foo()
{
  return 0;
}

************************************************************

 

I have tried the libtool on two different machines (1 with more recent Solaris patches).  I
even tried the -export-dymanic linked with the main.cpp.  Why would I be unable to find
the symbol associated with foo after all of this??

 

Thanks for your help....

 

chris