Set ADDR

[Andrew Cagney <ac131313@ges.redhat.com>]

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Hello,

The bug below and the attached patch are just scary!

(top-gdb) print $r0
$4 = 209
(top-gdb) print $r2
$5 = 0
(top-gdb) set $r2 = 0
(top-gdb) print $r2
$6 = 0
(top-gdb) print $r0
$7 = 0

``addr'' the offset into the registers buffer wasn't being set which 
would lead to register zero always being set.

The worry is that I didn't pick up any testsuite failures :-(

committed the attached,
Andrew

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2002-08-19  Andrew Cagney  <ac131313@redhat.com>

	* frame.c (frame_register_unwind): When a register, set addrp to
	the register's byte.

Index: frame.c
===================================================================
RCS file: /cvs/src/src/gdb/frame.c,v
retrieving revision 1.14
diff -u -r1.14 frame.c
--- frame.c	6 Aug 2002 22:42:56 -0000	1.14
+++ frame.c	21 Aug 2002 03:16:11 -0000
@@ -142,7 +142,9 @@
 	 register cache.  */
       *optimizedp = 0;
       *lvalp = lval_register;
-      *addrp = 0;
+      /* ULGH!  Code uses the offset into the raw register byte array
+         as a way of identifying a register.  */
+      *addrp = REGISTER_BYTE (regnum);
       /* Should this code test ``register_cached (regnum) < 0'' and do
          something like set realnum to -1 when the register isn't
          available?  */