[src/trunk]: src/sys/ddb "set" now displays the name of the variable, old val...

[jhawk <jhawk%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/473c514a5ed6
branches:  trunk
changeset: 494323:473c514a5ed6
user:      jhawk <jhawk%NetBSD.org@localhost>
date:      Wed Jul 05 16:29:25 2000 +0000

description:
"set" now displays the name of the variable, old value, and new value,
just as "write" does.

diffstat:

 sys/ddb/TODO           |  6 +++---
 sys/ddb/db_variables.c |  6 +++++-
 2 files changed, 8 insertions(+), 4 deletions(-)

diffs (47 lines):

diff -r 4cc13f9b92bd -r 473c514a5ed6 sys/ddb/TODO
--- a/sys/ddb/TODO      Wed Jul 05 16:19:48 2000 +0000
+++ b/sys/ddb/TODO      Wed Jul 05 16:29:25 2000 +0000
@@ -1,4 +1,4 @@
-$NetBSD: TODO,v 1.3 2000/06/17 05:57:41 jhawk Exp $
+$NetBSD: TODO,v 1.4 2000/07/05 16:29:26 jhawk Exp $
 
 In rough order.
 
@@ -22,9 +22,9 @@
 Features to be implemented:
 
 1.     Have "ps" print pids with a 0t prefix to reduce radix
-       confusion.
+       confusion. This is very ugly...needs thought.
 
-2.     "set" should display the old value as "write" does.
+done   "set" should display the old value as "write" does.
 
 3.     Support 64-bit longs in "write". /L or /q? both? long versus quad?
 
diff -r 4cc13f9b92bd -r 473c514a5ed6 sys/ddb/db_variables.c
--- a/sys/ddb/db_variables.c    Wed Jul 05 16:19:48 2000 +0000
+++ b/sys/ddb/db_variables.c    Wed Jul 05 16:29:25 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: db_variables.c,v 1.18 2000/06/27 17:55:39 mrg Exp $    */
+/*     $NetBSD: db_variables.c,v 1.19 2000/07/05 16:29:25 jhawk Exp $  */
 
 /* 
  * Mach Operating System
@@ -234,6 +234,7 @@
        char *          modif;
 {
        db_expr_t       value;
+       db_expr_t       old_value;
        struct db_variable *vp;
        int     t;
 
@@ -260,5 +261,8 @@
            /*NOTREACHED*/
        }
 
+       db_read_variable(vp, &old_value);
+       db_printf("$%s\t\t%s = ", vp->name, db_num_to_str(old_value));
+       db_printf("%s\n", db_num_to_str(value));
        db_write_variable(vp, &value);
 }