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patches/gdb/6.8a/130-reg-no-longer-active.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Wed Dec 05 20:31:43 2012 +0100 (2012-12-05)
changeset 3134 863723936e24
parent 1343 e6f6153d318c
permissions -rw-r--r--
scripts/xldd: use user's sed and grep

xldd uses sed and grep as detected by ./configure. This works well if is
used on the machine that build the toolchain.

But if the user moves the toolchain to another machine where sed and grep
are not in the same directory (eg. /bin/sed vs. /usr/bin/sed), then xldd
will stop functionning.

Fix that by using ${SED} and ${GREP} if they are set in the environment.

Reported-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> 
     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    29  	  error (_("Value being assigned to is no longer active."));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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