[RFC] pb unwinding from pthread_cond_wait on ppc-linux (RFA?)

Daniel Jacobowitz drow@false.org
Wed Dec 8 16:51:00 GMT 2004

On Wed, Dec 08, 2004 at 05:32:11PM +0100, Joel Brobecker wrote:
> Gah? Do I understand correctly that the code jumps to 0xffed01c
> only to return back?

Precisely!  That's what I thought it would be.  It's trying to load lr
with the address of @+16, so that the function can access PIC data
using PC-relative displacement.

Take a look at i386-tdep.c.  It handles calls to a return sequence
specially in the prologue analyzer.  That may be a better choice than
blindly allowing calls.

(Does this obsolete the "branch in first three insns" check?  I'm not
sure if there are other possible reasons for that.)

Daniel Jacobowitz

More information about the Gdb-patches mailing list