Re: How to tell where a symbol is satisfied from.

[Reg Clemens <reg@xxxxxxx>]

> Reg Clemens wrote:
> > How do I find out where this symbol is defined???
> 
> env LD_DEBUG=bindings ./a.out
> 
> Note that this does not work for prelinked binaries since they don't 
> perform relocations.
> 

Mabe Im asking the wrong question, let me start again.

If I compile the following piece of code with gcc -c

---

#define MULMOD(x,y,p) ((int) ((((long long) (x)) * ((long long) (y))) % ((long 
long) (p))))

main()
{
        long long x, y, p;
        int     i;

        x = 2;
        y = 3;
        p = 4;

        i = MULMOD (x, y, p);
}

---

(where the values assigned to x,y,p are irrelevant), and then do a nm on 
test.o, I get

[reg@deneb ~]$ nm test.o
         U __moddi3
00000000 T main

Showing moddi3 is undefined.  
If I compile and load with gcc test.c, then neither of the suggestions in the 
previous
two notes tell me where moddi3 is coming from.

The real question I am asking here is this:
I have another,much larger, piece of code that calls the fttw library which I 
just (re)compiled under fc6.
When I try to compile this piece of code, it shows moddi3 as being 
UNDEFINED.
(it is being referenced from the library routines, not the main routine).

I was hoping to find where it (moddi3) was defined, and then add that to the 
libraries mentioned on the compile line, but have yet to figure out where it 
is.

Suggestions???

-- 
                                        Reg.Clemens
                                        reg@xxxxxxx