[src/trunk]: src/sys/arch/alpha/alpha Make the /u part of show reg/u work.

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

details:   https://anonhg.NetBSD.org/src/rev/8c3a55398e2c
branches:  trunk
changeset: 509782:8c3a55398e2c
user:      ross <ross%NetBSD.org@localhost>
date:      Sun May 13 01:40:58 2001 +0000

description:
Make the /u part of show reg/u work.

diffstat:

 sys/arch/alpha/alpha/db_interface.c |  16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

diffs (43 lines):

diff -r 1986f25ce311 -r 8c3a55398e2c sys/arch/alpha/alpha/db_interface.c
--- a/sys/arch/alpha/alpha/db_interface.c       Sun May 13 01:38:53 2001 +0000
+++ b/sys/arch/alpha/alpha/db_interface.c       Sun May 13 01:40:58 2001 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: db_interface.c,v 1.15 2001/04/21 16:27:10 thorpej Exp $ */
+/* $NetBSD: db_interface.c,v 1.16 2001/05/13 01:40:58 ross Exp $ */
 
 /* 
  * Mach Operating System
@@ -52,7 +52,7 @@
 
 #include <sys/cdefs.h>                 /* RCS ID & Copyright macro defns */
 
-__KERNEL_RCSID(0, "$NetBSD: db_interface.c,v 1.15 2001/04/21 16:27:10 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: db_interface.c,v 1.16 2001/05/13 01:40:58 ross Exp $");
 
 #include <sys/param.h>
 #include <sys/proc.h>
@@ -147,14 +147,22 @@
 static int
 db_alpha_regop(const struct db_variable *vp, db_expr_t *val, int opcode)
 {
+       unsigned long *tfaddr;
+       unsigned long zeroval = 0;
+       struct trapframe *f = NULL;
 
+       if (vp->modif != NULL && *vp->modif == 'u') {
+               if (curproc != NULL)
+                       f = curproc->p_md.md_tf;
+       } else  f = DDB_REGS;
+       tfaddr = f == NULL ? &zeroval : &f->tf_regs[(u_long)vp->valuep];
        switch (opcode) {
        case DB_VAR_GET:
-               *val = DDB_REGS->tf_regs[(u_long)vp->valuep];
+               *val = *tfaddr;
                break;
 
        case DB_VAR_SET:
-               DDB_REGS->tf_regs[(u_long)vp->valuep] = *val;
+               *tfaddr = *val;
                break;
 
        default: