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patches/gdb/6.8/130-reg-no-longer-active.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jan 17 23:06:02 2010 +0100 (2010-01-17)
changeset 1740 c57458bb354d
permissions -rw-r--r--
configure: do not require hg when configuring in an hg clone

When configuring in an hg clone, we need hg to compute the version string.
It can happen that users do not have Mercurial (eg. if they got a snapshot
rather that they did a full clone). In this case, we can still run, of
course, so simply fill the version string with a sufficiently explicit
value, that does not require hg. The date is a good candidate. 
     1 Fix bug reported by Thomas Petazzoni <thomas.petazzoni@free-electrons.com>:

     2 See: http://sourceware.org/ml/crossgcc/2009-05/msg00055.html

     3      https://bugzilla.redhat.com/show_bug.cgi?id=436037

     4 

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

     6 

     7 diff -d -urpN src.0/gdb/valops.c src.1/gdb/valops.c

     8 --- src.0/gdb/valops.c	2008-07-27 04:00:03.000000000 +0200

     9 +++ src.1/gdb/valops.c	2008-07-31 15:17:42.000000000 +0200

    10 @@ -813,10 +813,18 @@ value_assign (struct value *toval, struc

    11  	struct frame_info *frame;

    12  	int value_reg;

    13  

    14 -	/* Figure out which frame this is in currently.  */

    15 -	frame = frame_find_by_id (VALUE_FRAME_ID (toval));

    16  	value_reg = VALUE_REGNUM (toval);

    17  

    18 +	/* Figure out which frame this is in currently.  */

    19 +	frame = frame_find_by_id (VALUE_FRAME_ID (toval));

    20 +	/* "set $reg+=1" should work on programs with no debug info,

    21 +	   but frame_find_by_id returns NULL here (RH bug 436037).

    22 +	   Use current frame, it represents CPU state in this case.

    23 +	   If frame_find_by_id is changed to do it internally

    24 +	   (it is contemplated there), remove this.  */

    25 +	if (!frame)

    26 +	  frame = get_current_frame ();

    27 +	/* Probably never happens.  */

    28  	if (!frame)

    29  	  error (_("Value being assigned to is no longer active."));

    30
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