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Re: RFA: modernization of ia64-tdep.c with new frame model for gdb-6.0 branch
- From: Daniel Jacobowitz <drow at mvista dot com>
- To: gdb-patches at sources dot redhat dot com
- Date: Thu, 31 Jul 2003 15:20:03 -0400
- Subject: Re: RFA: modernization of ia64-tdep.c with new frame model for gdb-6.0 branch
- References: <3F283061.4060007@redhat.com> <3F296809.9000402@redhat.com>
On Thu, Jul 31, 2003 at 03:03:37PM -0400, J. Johnston wrote:
> I found the fix for making this patch work on the mainline as well. It
> turns out that Daniel J.'s patch that verifies that the pc and function
> address are in the same section trips up for the ia64 printf calls.
> I had added a check in examine_prologue which caught this problem and
> recognized that the cfm didn't match up so we should treat the function
> as frameless. The fix is simply to set the cache frameless
> flag on by default. This corresponds to the new examine_prologue()
> logic which assumes frameless until proven otherwise. Now, when
> frame_func_unwind()
> returns 0 when it finds the pc and the function it is supposed to be in
> are in different sections, the cache will be marked frameless and I will
> correctly look at current register values rather than depend on the cache.
>
> I have resubmitted the patch including the one line change.
Hrm, why is that triggering for printf? Is it correct, or are we
stopped in some trampoline?
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer