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add support for the `D' kgdb detach command 

add comment about minimum requirement for KGDB_BUFLEN
This commit is contained in:
dbj 2002-01-05 22:57:38 +00:00
parent e3a3a9f56f
commit d5738f5104
2 changed files with 7 additions and 3 deletions
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7
sys/kern/kgdb_stub.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kgdb_stub.c,v 1.11 2001/11/20 08:43:46 lukem Exp $ */ /* $NetBSD: kgdb_stub.c,v 1.12 2002/01/05 22:57:38 dbj Exp $ */
/* /*
* Copyright (c) 1990, 1993 * Copyright (c) 1990, 1993
@ -49,7 +49,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kgdb_stub.c,v 1.11 2001/11/20 08:43:46 lukem Exp $"); __KERNEL_RCSID(0, "$NetBSD: kgdb_stub.c,v 1.12 2002/01/05 22:57:38 dbj Exp $");
#include "opt_kgdb.h" #include "opt_kgdb.h"
@ -88,6 +88,7 @@ static int (*kgdb_getc) __P((void *));
static void (*kgdb_putc) __P((void *, int)); static void (*kgdb_putc) __P((void *, int));
static void *kgdb_ioarg; static void *kgdb_ioarg;
/* KGDB_BUFLEN must be at least (2*KGDB_NUMREGS*sizeof(kgdb_reg_t)+1) */
static u_char buffer[KGDB_BUFLEN]; static u_char buffer[KGDB_BUFLEN];
static kgdb_reg_t gdb_regs[KGDB_NUMREGS]; static kgdb_reg_t gdb_regs[KGDB_NUMREGS];
@ -497,10 +498,12 @@ kgdb_trap(type, regs)
kgdb_send("OK"); kgdb_send("OK");
continue; continue;
case KGDB_DETACH:
case KGDB_KILL: case KGDB_KILL:
kgdb_active = 0; kgdb_active = 0;
printf("kgdb detached\n"); printf("kgdb detached\n");
db_clear_single_step(regs); db_clear_single_step(regs);
kgdb_send("OK");
goto out; goto out;
case KGDB_CONT: case KGDB_CONT:

3
sys/sys/kgdb.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: kgdb.h,v 1.5 1998/09/13 14:46:24 christos Exp $ */ /* $NetBSD: kgdb.h,v 1.6 2002/01/05 22:57:38 dbj Exp $ */
/* /*
* Copyright (c) 1992, 1993 * Copyright (c) 1992, 1993
@ -64,6 +64,7 @@
#define KGDB_CONT 'c' #define KGDB_CONT 'c'
#define KGDB_STEP 's' #define KGDB_STEP 's'
#define KGDB_KILL 'k' #define KGDB_KILL 'k'
#define KGDB_DETACH 'D'
#define KGDB_SIGNAL '?' #define KGDB_SIGNAL '?'
#define KGDB_DEBUG 'd' #define KGDB_DEBUG 'd'