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Implement "mach pgmap" for examining mappings.

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This commit is contained in:
gwr 1997-03-06 00:05:23 +00:00
parent a4e5a18b63
commit 25d7b99a1f
1 changed files with 41 additions and 3 deletions
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44
sys/arch/sun3x/sun3x/db_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_machdep.c,v 1.3 1997/01/27 22:35:03 gwr Exp $ */
/* $NetBSD: db_machdep.c,v 1.4 1997/03/06 00:05:23 gwr Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
@ -43,8 +43,6 @@
#include <sys/param.h>
#include <sys/proc.h>
#include <vm/vm.h>
#include <machine/db_machdep.h>
#include <machine/machdep.h>
#include <machine/pte.h>
@ -55,11 +53,13 @@
static void db_mach_abort __P((db_expr_t, int, db_expr_t, char *));
static void db_mach_halt __P((db_expr_t, int, db_expr_t, char *));
static void db_mach_reboot __P((db_expr_t, int, db_expr_t, char *));
static void db_mach_pagemap __P((db_expr_t, int, db_expr_t, char *));
struct db_command db_machine_cmds[] = {
{ "abort", db_mach_abort, 0, 0 },
{ "halt", db_mach_halt, 0, 0 },
{ "reboot", db_mach_reboot, 0, 0 },
{ "pgmap", db_mach_pagemap, CS_SET_DOT, 0 },
{ (char *)0, }
};
@ -110,3 +110,41 @@ db_mach_reboot(addr, have_addr, count, modif)
{
sunmon_reboot("");
}
static void pte_print __P((int));
static void
db_mach_pagemap(addr, have_addr, count, modif)
db_expr_t addr;
int have_addr;
db_expr_t count;
char * modif;
{
u_long va, pte;
va = trunc_page((u_long)addr);
pte = get_pte(va);
db_printf("0x%08x 0x%08x", va, pte);
pte_print(pte);
db_next = va + NBPG;
}
static void
pte_print(pte)
int pte;
{
if (pte & MMU_SHORT_PTE_DT) {
if (pte & MMU_SHORT_PTE_CI)
db_printf(" CI");
if (pte & MMU_SHORT_PTE_M)
db_printf(" Mod");
if (pte & MMU_SHORT_PTE_USED)
db_printf(" Ref");
if (pte & MMU_SHORT_PTE_WP)
db_printf(" WP");
db_printf(" DT%d\n", pte & MMU_SHORT_PTE_DT);
}
else db_printf(" INVALID\n");
}