[FFmpeg-devel] Memory leak using bitstream filters with shared libs

Rich Felker dalias
Sun Mar 9 14:26:25 CET 2008

On Sun, Mar 09, 2008 at 04:48:11AM +0200, Uoti Urpala wrote:
> On Sat, 2008-03-08 at 19:23 -0500, Rich Felker wrote:
> > It's actually an implementation bug since the C language requires that
> > the addresses match. I suspect it's binutils doing something stupid
> > due to -Bsymbolic. Anyway this sort of problem is common enough that
> It's binutils doing what -Bsymbolic is documented to do - binding
> references to global symbols to the definition within the shared
> library. If the main program is compiled without -fPIC then functions
> are normally bound to the main program's PLT entry (if one exists for
> the function in question), and that's what other code will use.

This is a bug, plain and simple, in the linker. Binding _call_
references is valid, but binding address-of references is not. The
latter must be left either as a GOT lookup (if compiling PIC code) or
a textrel (for non-PIC code).


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