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

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This commit is contained in:
matt 2012-09-21 22:12:35 +00:00
parent 852c4daa51
commit 1e069ddadf
2 changed files with 16 additions and 3 deletions
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16
sys/arch/arm/arm32/db_machdep.c
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@ -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 @@ const struct db_command db_machine_command_table[] = {
{ 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_show_panic_cmd(db_expr_t addr, bool have_addr, db_expr_t count, const char *m
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

3
sys/arch/arm/include/arm32/db_machdep.h
View File

@ -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