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Add "machine pgmap" (like PROM "p" command).

This commit is contained in:
gwr 1995-02-13 22:22:22 +00:00
parent ac66c90d8d
commit 91a4200d0a
1 changed files with 45 additions and 1 deletions
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46
sys/arch/sun3/sun3/db_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_machdep.c,v 1.2 1995/02/11 21:04:26 gwr Exp $ */
/* $NetBSD: db_machdep.c,v 1.3 1995/02/13 22:22:22 gwr Exp $ */
/*
* Copyright (c) 1994, 1995 Gordon W. Ross
@ -122,12 +122,55 @@ db_write_bytes(addr, size, data)
}
}
static char *pgt_names[] = {
"MEM", "OBIO", "VMES", "VMEL" };
void pte_print(pte)
int pte;
{
int t;
if (pte & PG_VALID) {
db_printf(" V");
if (pte & PG_WRITE)
db_printf(" W");
if (pte & PG_SYSTEM)
db_printf(" S");
if (pte & PG_NC)
db_printf(" NC");
if (pte & PG_REF)
db_printf(" Ref");
if (pte & PG_MOD)
db_printf(" Mod");
t = (pte >> PG_TYPE_SHIFT) & 3;
db_printf(" %s", pgt_names[t]);
db_printf(" PA=0x%x\n", PG_PA(pte));
}
else db_printf(" INVALID\n");
}
static void
db_pagemap(addr)
db_expr_t addr;
{
int pte, sme;
sme = get_segmap(addr);
if (sme == 0xFF) pte = 0;
else pte = get_pte(addr);
db_printf("0x%08x [%02x] 0x%08x", addr, sme, pte);
pte_print(pte);
db_next = addr + NBPG;
}
/*
* Machine-specific ddb commands for the sun3:
* abort: Drop into monitor via abort (allows continue)
* halt: Exit to monitor as in halt(8)
* reboot: Reboot the machine as in reboot(8)
* pgmap: Given addr, Print addr, segmap, pagemap, pte
*/
extern void sun3_mon_abort();
@ -143,6 +186,7 @@ struct db_command db_machine_cmds[] = {
{ "abort", sun3_mon_abort, 0, 0 },
{ "halt", sun3_mon_halt, 0, 0 },
{ "reboot", db_mon_reboot, 0, 0 },
{ "pgmap", db_pagemap, CS_SET_DOT, 0 },
{ (char *)0, }
};