Re: [DynInst_API:] rewritten binary returning symbol lookup error.

[Bill Williams <bill@xxxxxxxxxxx>]

On 01/09/2014 11:16 AM, J. Benton wrote:
> On 1/9/14, 10:49 AM, Bill Williams wrote:
> > On 01/09/2014 02:55 AM, J. Benton wrote:
> > > Hi everyone,
> > >
> > > I'm wondering if you could help me.  Using the examples in the
> > > programmer's manual as a guide, I generated a simple snippet, inserting
> > > a printf call upon each call to a function. After the binary is
> > > rewritten I get this error when it is executed:
> > >
> > > symbol lookup error: /usr/lib/libdyninstAPI_RT.so: undefined symbol:
> > > sizeOfAnyHeap1
> > >
> > > /usr/lib/libdyninstAPI_RT.so exists.  I've set DYNINST_LIB to /usr/lib.
> > >
> > > Any ideas?
> > sizeOfAnyHeap1 should show up in an nm of your libdyninstAPI_RT.so,
> > and libdyninstAPI_RT.so should show up in an ldd of your rewritten
> > binary, assuming that everything is working correctly. Are either of
> > those not the case for you?
> That's a good point. The rewritten binary does not include any libraries
> in the ldd list.  Modifying the binary generates an empty list in the
> ldd, even when the original includes a few.
...okay, that's weird, and something that should throw some red flags to 
STDERR during the rewriting process I'd expect. If you're not getting 
any errors during the process, can you set SYMTAB_DEBUG_REWRITE=1 in 
your environment, regenerate the modified binary, and send us the log 
that produces?
Also, what version of Dyninst are you working with?

> J.
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--
--bw

Bill Williams
Paradyn Project
bill@xxxxxxxxxxx