--- Comment #9 from drow at gcc dot gnu dot org 2005-11-15 20:58 ---
Subject: Re: [4.1 regression] invalid register in debug info
On Thu, Oct 20, 2005 at 08:35:59AM -, rth at gcc dot gnu dot org wrote:
Well, the ideal fix is to make use of the dwarf3 DW_OP_call_frame_cfa
--- Comment #6 from wilson at gcc dot gnu dot org 2005-10-31 23:39 ---
Subject: Bug 2
Author: wilson
Date: Mon Oct 31 23:39:29 2005
New Revision: 106299
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=106299
Log:
Restore old AT_frame_base code for targets that don't use dwarf2
--- Comment #7 from wilson at gcc dot gnu dot org 2005-10-31 23:46 ---
This is partially fixed. The debug info is correct enough to make the gdb
testsuite happy, but we are lacking correct info for the frame_base in the
prologue and epilogue. That used to be computed by code in
--- Comment #8 from wilson at gcc dot gnu dot org 2005-11-01 01:16 ---
I see that we are using the priority field now, so let's put the 4.1 target
milestone back and set priority to p4 to indicate this is a regression, but not
a serious one blocking the release.
--
wilson at gcc dot
--- Comment #5 from mmitchel at gcc dot gnu dot org 2005-10-31 06:32
---
I guess I'll leave this as P2, but I really do think we should find a fix
before the next release, for the affected targets.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=2
--- Comment #4 from rth at gcc dot gnu dot org 2005-10-20 08:35 ---
Well, the ideal fix is to make use of the dwarf3 DW_OP_call_frame_cfa
directive, and let the debugger get the CFA information from the ia64
unwind info. Similarly for the arm eabi unwind info.
I'm not sure what a good
--
wilson at gcc dot gnu dot org changed:
What|Removed |Added
Target Milestone|--- |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=2
--- Comment #1 from schwab at suse dot de 2005-10-19 17:03 ---
Created an attachment (id=10025)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10025action=view)
Testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=2
--- Comment #2 from wilson at gcc dot gnu dot org 2005-10-19 23:34 ---
This was broken by Richard Henderson's patch that added the
convert_cfa_to_loc_list function. The thread for the patch starts here. It
was finally installed Sept 7.
--- Comment #3 from wilson at gcc dot gnu dot org 2005-10-20 05:09 ---
It looks a little more complicated than I hoped, as Richard deleted code in
var-tracking.c that was used by the old code in dwarf2out.c that we need for
IA-64 and other non-DWARF2_UNWIND_INFO targets.
--
wilson
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