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Fix gdb bug reported by Thomas Petazzoni <thomas.petazzoni@free-electrons.com>:

Browse Source 
See: http://sourceware.org/ml/crossgcc/2009-05/msg00055.html
     https://bugzilla.redhat.com/show_bug.cgi?id=436037

Fix from: http://cvs.fedoraproject.org/viewvc/devel/gdb/gdb-6.8-bz436037-reg-no-longer-active.patch?revision=1.1


 -------- diffstat follows --------
 /trunk/patches/gdb/6.8/130-reg-no-longer-active.patch |   30    30     0     0 +++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
This commit is contained in:
Yann E. MORIN" 2009-05-19 16:05:36 +00:00
parent d0528ffa5c
commit 5a32a8b8e8
1 changed files with 30 additions and 0 deletions
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30
patches/gdb/6.8/130-reg-no-longer-active.patch Normal file
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@ -0,0 +1,30 @@
Fix bug reported by Thomas Petazzoni <thomas.petazzoni@free-electrons.com>:
See: http://sourceware.org/ml/crossgcc/2009-05/msg00055.html
https://bugzilla.redhat.com/show_bug.cgi?id=436037
Fix from: http://cvs.fedoraproject.org/viewvc/devel/gdb/gdb-6.8-bz436037-reg-no-longer-active.patch?revision=1.1
diff -d -urpN src.0/gdb/valops.c src.1/gdb/valops.c
--- src.0/gdb/valops.c 2008-07-27 04:00:03.000000000 +0200
+++ src.1/gdb/valops.c 2008-07-31 15:17:42.000000000 +0200
@@ -813,10 +813,18 @@ value_assign (struct value *toval, struc
struct frame_info *frame;
int value_reg;
- /* Figure out which frame this is in currently. */
- frame = frame_find_by_id (VALUE_FRAME_ID (toval));
value_reg = VALUE_REGNUM (toval);
+ /* Figure out which frame this is in currently. */
+ frame = frame_find_by_id (VALUE_FRAME_ID (toval));
+ /* "set $reg+=1" should work on programs with no debug info,
+ but frame_find_by_id returns NULL here (RH bug 436037).
+ Use current frame, it represents CPU state in this case.
+ If frame_find_by_id is changed to do it internally
+ (it is contemplated there), remove this. */
+ if (!frame)
+ frame = get_current_frame ();
+ /* Probably never happens. */
if (!frame)
error (_("Value being assigned to is no longer active."));