On Tue, Dec 18, 2007 at 08:47:35AM -0500, Daniel Jacobowitz wrote: > On Mon, Dec 17, 2007 at 11:25:35PM -0500, Ross Ridge wrote: > > >// Reserve two stack slots and save return address > > >// and previous frame pointer into them. By > > >// pointing new ebp to them, we build a pseudo > > >// stack for unwinding > > > > Hmmm... I don't know much about the DWARF unwind information, but > > couldn't it handle this case without creating the "pseudo frame"? > > Or at least be extended so it could? > > In practice, there are non-DWARF unwinders scattered all over that > work on i386 and folks want to keep them working. DWARF has no > trouble handling this sort of thing. >
Another thing is we may need to update prolog analyzer in gdb to support the new prolog. H.J.
