[src/trunk]: src/sys/arch/arm Add a 'mach fault' command to print DFAR/DFSR/I...

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

details:   https://anonhg.NetBSD.org/src/rev/89d6fc372998
branches:  trunk
changeset: 781670:89d6fc372998
user:      matt <matt%NetBSD.org@localhost>
date:      Fri Sep 21 22:12:35 2012 +0000

description:
Add a 'mach fault' command to print DFAR/DFSR/IFAR/IFSR/TTBR

diffstat:

 sys/arch/arm/arm32/db_machdep.c         |  16 ++++++++++++++--
 sys/arch/arm/include/arm32/db_machdep.h |   3 ++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diffs (60 lines):

diff -r 3e23d4d7b581 -r 89d6fc372998 sys/arch/arm/arm32/db_machdep.c
--- a/sys/arch/arm/arm32/db_machdep.c   Fri Sep 21 16:38:54 2012 +0000
+++ b/sys/arch/arm/arm32/db_machdep.c   Fri Sep 21 22:12:35 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: db_machdep.c,v 1.14 2012/08/31 11:52:39 skrll Exp $    */
+/*     $NetBSD: db_machdep.c,v 1.15 2012/09/21 22:12:35 matt Exp $     */
 
 /* 
  * Copyright (c) 1996 Mark Brinicombe
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: db_machdep.c,v 1.14 2012/08/31 11:52:39 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: db_machdep.c,v 1.15 2012/09/21 22:12:35 matt Exp $");
 
 #include <sys/param.h>
 #include <sys/proc.h>
@@ -91,6 +91,9 @@
        { DDB_ADD_CMD("panic",  db_show_panic_cmd,      0,
                        "Displays the last panic string",
                        NULL,NULL) },
+       { DDB_ADD_CMD("fault",  db_show_fault_cmd,      0,
+                       "Displays the fault registers",
+                       NULL,NULL) },
 #endif
 #ifdef ARM32_DB_COMMANDS
        ARM32_DB_COMMANDS,
@@ -135,6 +138,15 @@
        db_printf("Panic string: %s\n", panicstr);
        (void)splx(s);
 }
+
+void
+db_show_fault_cmd(db_expr_t addr, bool have_addr, db_expr_t count, const char *modif)
+{
+       db_printf("DFAR=%#x DFSR=%#x IFAR=%#x IFSR=%#x TTBR=%#x\n",
+           armreg_dfar_read(), armreg_dfsr_read(),
+           armreg_ifar_read(), armreg_ifsr_read(),
+           armreg_ttbr_read());
+}
 #endif
 
 
diff -r 3e23d4d7b581 -r 89d6fc372998 sys/arch/arm/include/arm32/db_machdep.h
--- a/sys/arch/arm/include/arm32/db_machdep.h   Fri Sep 21 16:38:54 2012 +0000
+++ b/sys/arch/arm/include/arm32/db_machdep.h   Fri Sep 21 22:12:35 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: db_machdep.h,v 1.5 2009/03/14 14:45:55 dsl Exp $ */
+/* $NetBSD: db_machdep.h,v 1.6 2012/09/21 22:12:36 matt Exp $ */
 
 #ifndef _ARM32_DB_MACHDEP_H_
 #define _ARM32_DB_MACHDEP_H_
@@ -7,5 +7,6 @@
 
 void db_show_panic_cmd(db_expr_t, bool, db_expr_t, const char *);
 void db_show_frame_cmd(db_expr_t, bool, db_expr_t, const char *);
+void db_show_fault_cmd(db_expr_t, bool, db_expr_t, const char *);
 
 #endif