Get rid of usrstack/USRSTACK. Document that the old version of getargv is
broken because of ASLR.
This commit is contained in:
parent
906a0c5ecd
commit
104ea67795
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm.c,v 1.109 2020/05/02 14:31:13 christos Exp $ */
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/* $NetBSD: kvm.c,v 1.110 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 1989, 1992, 1993
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@ -38,7 +38,7 @@
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#if 0
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static char sccsid[] = "@(#)kvm.c 8.2 (Berkeley) 2/13/94";
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#else
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__RCSID("$NetBSD: kvm.c,v 1.109 2020/05/02 14:31:13 christos Exp $");
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__RCSID("$NetBSD: kvm.c,v 1.110 2022/01/10 19:51:30 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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@ -289,7 +289,7 @@ _kvm_open(kvm_t *kd, const char *uf, const char *mf, const char *sf, int flag,
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/*
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* Call the MD open hook. This sets:
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* usrstack, min_uva, max_uva
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* min_uva, max_uva
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*/
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if (_kvm_mdopen(kd)) {
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_kvm_err(kd, kd->program, "md init failed");
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_aarch64.c,v 1.10 2020/11/10 19:14:11 skrll Exp $ */
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/* $NetBSD: kvm_aarch64.c,v 1.11 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 2014, 2018 The NetBSD Foundation, Inc.
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@ -49,7 +49,7 @@
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#include "kvm_private.h"
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__RCSID("$NetBSD: kvm_aarch64.c,v 1.10 2020/11/10 19:14:11 skrll Exp $");
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__RCSID("$NetBSD: kvm_aarch64.c,v 1.11 2022/01/10 19:51:30 christos Exp $");
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/*ARGSUSED*/
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void
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@ -197,7 +197,6 @@ int
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_kvm_mdopen(kvm_t *kd)
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{
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_alpha.c,v 1.27 2014/02/19 20:21:22 dsl Exp $ */
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/* $NetBSD: kvm_alpha.c,v 1.28 2022/01/10 19:51:30 christos Exp $ */
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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@ -50,7 +50,7 @@
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#include "kvm_private.h"
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__RCSID("$NetBSD: kvm_alpha.c,v 1.27 2014/02/19 20:21:22 dsl Exp $");
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__RCSID("$NetBSD: kvm_alpha.c,v 1.28 2022/01/10 19:51:30 christos Exp $");
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/*ARGSUSED*/
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void
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@ -186,7 +186,6 @@ int
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_kvm_mdopen(kvm_t *kd)
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{
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_arm.c,v 1.6 2010/09/20 23:23:16 jym Exp $ */
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/* $NetBSD: kvm_arm.c,v 1.7 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (C) 1996 Wolfgang Solfrank.
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@ -39,7 +39,7 @@
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: kvm_arm.c,v 1.6 2010/09/20 23:23:16 jym Exp $");
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__RCSID("$NetBSD: kvm_arm.c,v 1.7 2022/01/10 19:51:30 christos Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <sys/param.h>
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@ -194,13 +194,11 @@ _kvm_mdopen(kvm_t * kd)
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extern struct ps_strings *__ps_strings;
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#if 0 /* XXX - These vary across arm machines... */
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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#endif
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/* This is somewhat hack-ish, but it works. */
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max_uva = (uintptr_t) (__ps_strings + 1);
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kd->usrstack = max_uva;
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kd->max_uva = max_uva;
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kd->min_uva = 0;
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_hppa.c,v 1.7 2014/02/19 20:21:22 dsl Exp $ */
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/* $NetBSD: kvm_hppa.c,v 1.8 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 1989, 1992, 1993
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@ -38,7 +38,7 @@
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#if 0
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static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: kvm_hppa.c,v 1.7 2014/02/19 20:21:22 dsl Exp $");
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__RCSID("$NetBSD: kvm_hppa.c,v 1.8 2022/01/10 19:51:30 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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@ -197,7 +197,6 @@ int
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_kvm_mdopen(kvm_t *kd)
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{
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_i386.c,v 1.31 2020/04/25 05:17:16 maxv Exp $ */
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/* $NetBSD: kvm_i386.c,v 1.32 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 1989, 1992, 1993
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#if 0
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static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: kvm_i386.c,v 1.31 2020/04/25 05:17:16 maxv Exp $");
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__RCSID("$NetBSD: kvm_i386.c,v 1.32 2022/01/10 19:51:30 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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_kvm_mdopen(kvm_t *kd)
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{
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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/* $NetBSD: kvm_m68k.c,v 1.19 2014/01/27 21:00:01 matt Exp $ */
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/* $NetBSD: kvm_m68k.c,v 1.20 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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#include "kvm_private.h"
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#include "kvm_m68k.h"
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__RCSID("$NetBSD: kvm_m68k.c,v 1.19 2014/01/27 21:00:01 matt Exp $");
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__RCSID("$NetBSD: kvm_m68k.c,v 1.20 2022/01/10 19:51:30 christos Exp $");
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struct name_ops {
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const char *name;
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extern struct ps_strings *__ps_strings;
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#if 0 /* XXX - These vary across m68k machines... */
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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#endif
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/* This is somewhat hack-ish, but it works. */
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max_uva = (u_long) (__ps_strings + 1);
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kd->usrstack = max_uva;
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kd->max_uva = max_uva;
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kd->min_uva = 0;
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/* $NetBSD: kvm_mips.c,v 1.22 2014/02/19 20:21:22 dsl Exp $ */
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/* $NetBSD: kvm_mips.c,v 1.23 2022/01/10 19:51:30 christos Exp $ */
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: kvm_mips.c,v 1.22 2014/02/19 20:21:22 dsl Exp $");
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__RCSID("$NetBSD: kvm_mips.c,v 1.23 2022/01/10 19:51:30 christos Exp $");
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#endif /* LIBC_SCCS and not lint */
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/*
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_kvm_mdopen(kvm_t *kd)
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{
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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/* $NetBSD: kvm_or1k.c,v 1.1 2014/09/03 19:34:26 matt Exp $ */
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/* $NetBSD: kvm_or1k.c,v 1.2 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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#include <machine/kcore.h>
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#include <machine/vmparam.h>
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__RCSID("$NetBSD: kvm_or1k.c,v 1.1 2014/09/03 19:34:26 matt Exp $");
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__RCSID("$NetBSD: kvm_or1k.c,v 1.2 2022/01/10 19:51:30 christos Exp $");
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void
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_kvm_freevtop(kvm_t *kd)
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int
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_kvm_mdopen(kvm_t *kd)
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{
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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/* $NetBSD: kvm_powerpc.c,v 1.13 2014/01/27 21:00:01 matt Exp $ */
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/* $NetBSD: kvm_powerpc.c,v 1.14 2022/01/10 19:51:30 christos Exp $ */
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/*
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* Copyright (c) 2005 Wasabi Systems, Inc.
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#include <powerpc/oea/bat.h>
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#include <powerpc/oea/pte.h>
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__RCSID("$NetBSD: kvm_powerpc.c,v 1.13 2014/01/27 21:00:01 matt Exp $");
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__RCSID("$NetBSD: kvm_powerpc.c,v 1.14 2022/01/10 19:51:30 christos Exp $");
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static int _kvm_match_601bat(kvm_t *, vaddr_t, paddr_t *, int *);
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static int _kvm_match_bat(kvm_t *, vaddr_t, paddr_t *, int *);
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extern struct ps_strings *__ps_strings;
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#if 0 /* XXX - These vary across powerpc machines... */
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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#endif
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/* This is somewhat hack-ish, but it works. */
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max_uva = (uintptr_t) (__ps_strings + 1);
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kd->usrstack = max_uva;
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kd->max_uva = max_uva;
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kd->min_uva = 0;
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/* $NetBSD: kvm_powerpc64.c,v 1.6 2014/08/23 02:25:23 matt Exp $ */
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/* $NetBSD: kvm_powerpc64.c,v 1.7 2022/01/10 19:51:30 christos Exp $ */
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/*
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* Copyright (c) 2005 Wasabi Systems, Inc.
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#include <powerpc/oea/bat.h>
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#include <powerpc/oea/pte.h>
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__RCSID("$NetBSD: kvm_powerpc64.c,v 1.6 2014/08/23 02:25:23 matt Exp $");
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__RCSID("$NetBSD: kvm_powerpc64.c,v 1.7 2022/01/10 19:51:30 christos Exp $");
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void
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_kvm_freevtop(kvm_t *kd)
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extern struct ps_strings *__ps_strings;
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#if 0 /* XXX - These vary across powerpc machines... */
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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#endif
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/* This is somewhat hack-ish, but it works. */
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max_uva = (uintptr_t) (__ps_strings + 1);
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kd->usrstack = max_uva;
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kd->max_uva = max_uva;
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kd->min_uva = 0;
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_private.h,v 1.21 2020/04/28 00:12:01 christos Exp $ */
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/* $NetBSD: kvm_private.h,v 1.22 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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@ -55,7 +55,6 @@ struct __kvm {
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size_t procbase_len;
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size_t procbase2_len;
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size_t lwpbase_len;
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u_long usrstack; /* address of end of user stack */
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u_long min_uva, max_uva; /* min/max user virtual address */
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int nbpg; /* page size */
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char *swapspc; /* (dynamic) storage for swapped pages */
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_proc.c,v 1.95 2021/07/19 10:30:36 christos Exp $ */
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/* $NetBSD: kvm_proc.c,v 1.96 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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#if 0
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static char sccsid[] = "@(#)kvm_proc.c 8.3 (Berkeley) 9/23/93";
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#else
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__RCSID("$NetBSD: kvm_proc.c,v 1.95 2021/07/19 10:30:36 christos Exp $");
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__RCSID("$NetBSD: kvm_proc.c,v 1.96 2022/01/10 19:51:30 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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@ -1057,6 +1057,7 @@ proc_verify(kvm_t *kd, u_long kernp, const struct miniproc *p)
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(kernproc.p_stat != SZOMB || p->p_stat == SZOMB));
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}
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extern struct ps_strings *__ps_strings;
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static char **
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kvm_doargv(kvm_t *kd, const struct miniproc *p, int nchr,
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void (*info)(struct ps_strings *, u_long *, int *))
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*/
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if (p->p_stat == SZOMB)
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return (NULL);
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cnt = (int)kvm_ureadm(kd, p, kd->usrstack - sizeof(arginfo),
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/* XXX: this is broken for ASLR: we need to read p->p_psstr instead */
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cnt = (int)kvm_ureadm(kd, p, (u_long)(intptr_t)__ps_strings,
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(void *)&arginfo, sizeof(arginfo));
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if (cnt != sizeof(arginfo))
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return (NULL);
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_riscv.c,v 1.1 2014/09/19 17:36:25 matt Exp $ */
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/* $NetBSD: kvm_riscv.c,v 1.2 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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@ -51,7 +51,7 @@
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#include <machine/kcore.h>
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#include <machine/vmparam.h>
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__RCSID("$NetBSD: kvm_riscv.c,v 1.1 2014/09/19 17:36:25 matt Exp $");
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__RCSID("$NetBSD: kvm_riscv.c,v 1.2 2022/01/10 19:51:30 christos Exp $");
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void
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_kvm_freevtop(kvm_t *kd)
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@ -118,7 +118,6 @@ _kvm_pa2off(kvm_t *kd, paddr_t pa)
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int
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_kvm_mdopen(kvm_t *kd)
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{
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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@ -1,4 +1,4 @@
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/* $NetBSD: kvm_sh3.c,v 1.9 2014/02/19 20:21:22 dsl Exp $ */
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/* $NetBSD: kvm_sh3.c,v 1.10 2022/01/10 19:51:30 christos Exp $ */
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/*-
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* Copyright (c) 1989, 1992, 1993
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@ -38,7 +38,7 @@
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#if 0
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static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: kvm_sh3.c,v 1.9 2014/02/19 20:21:22 dsl Exp $");
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__RCSID("$NetBSD: kvm_sh3.c,v 1.10 2022/01/10 19:51:30 christos Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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@ -118,7 +118,6 @@ int
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_kvm_mdopen(kvm_t *kd)
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{
|
||||
|
||||
kd->usrstack = USRSTACK;
|
||||
kd->min_uva = VM_MIN_ADDRESS;
|
||||
kd->max_uva = VM_MAXUSER_ADDRESS;
|
||||
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: kvm_sparc.c,v 1.35 2015/10/31 02:40:44 nakayama Exp $ */
|
||||
/* $NetBSD: kvm_sparc.c,v 1.36 2022/01/10 19:51:30 christos Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1992, 1993
|
||||
|
@ -38,7 +38,7 @@
|
|||
#if 0
|
||||
static char sccsid[] = "@(#)kvm_sparc.c 8.1 (Berkeley) 6/4/93";
|
||||
#else
|
||||
__RCSID("$NetBSD: kvm_sparc.c,v 1.35 2015/10/31 02:40:44 nakayama Exp $");
|
||||
__RCSID("$NetBSD: kvm_sparc.c,v 1.36 2022/01/10 19:51:30 christos Exp $");
|
||||
#endif
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
|
@ -382,7 +382,6 @@ _kvm_mdopen(kvm_t *kd)
|
|||
extern struct ps_strings *__ps_strings;
|
||||
|
||||
max_uva = (u_long) (__ps_strings + 1);
|
||||
kd->usrstack = max_uva;
|
||||
kd->max_uva = max_uva;
|
||||
kd->min_uva = 0;
|
||||
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: kvm_sparc64.c,v 1.17 2014/02/21 18:00:09 palle Exp $ */
|
||||
/* $NetBSD: kvm_sparc64.c,v 1.18 2022/01/10 19:51:30 christos Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1992, 1993
|
||||
|
@ -38,7 +38,7 @@
|
|||
#if 0
|
||||
static char sccsid[] = "@(#)kvm_sparc.c 8.1 (Berkeley) 6/4/93";
|
||||
#else
|
||||
__RCSID("$NetBSD: kvm_sparc64.c,v 1.17 2014/02/21 18:00:09 palle Exp $");
|
||||
__RCSID("$NetBSD: kvm_sparc64.c,v 1.18 2022/01/10 19:51:30 christos Exp $");
|
||||
#endif
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
|
@ -273,7 +273,6 @@ _kvm_mdopen(kvm_t *kd)
|
|||
extern struct ps_strings *__ps_strings;
|
||||
|
||||
max_uva = (u_long) (__ps_strings + 1);
|
||||
kd->usrstack = max_uva;
|
||||
kd->max_uva = max_uva;
|
||||
kd->min_uva = 0;
|
||||
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: kvm_vax.c,v 1.20 2014/02/19 20:21:22 dsl Exp $ */
|
||||
/* $NetBSD: kvm_vax.c,v 1.21 2022/01/10 19:51:30 christos Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1992, 1993
|
||||
|
@ -59,7 +59,7 @@
|
|||
|
||||
#include "kvm_private.h"
|
||||
|
||||
__RCSID("$NetBSD: kvm_vax.c,v 1.20 2014/02/19 20:21:22 dsl Exp $");
|
||||
__RCSID("$NetBSD: kvm_vax.c,v 1.21 2022/01/10 19:51:30 christos Exp $");
|
||||
|
||||
struct vmstate {
|
||||
u_long end;
|
||||
|
@ -150,7 +150,6 @@ int
|
|||
_kvm_mdopen(kvm_t *kd)
|
||||
{
|
||||
|
||||
kd->usrstack = USRSTACK;
|
||||
kd->min_uva = VM_MIN_ADDRESS;
|
||||
kd->max_uva = VM_MAXUSER_ADDRESS;
|
||||
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: kvm_x86_64.c,v 1.12 2020/04/25 05:17:16 maxv Exp $ */
|
||||
/* $NetBSD: kvm_x86_64.c,v 1.13 2022/01/10 19:51:30 christos Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1989, 1992, 1993
|
||||
|
@ -38,7 +38,7 @@
|
|||
#if 0
|
||||
static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93";
|
||||
#else
|
||||
__RCSID("$NetBSD: kvm_x86_64.c,v 1.12 2020/04/25 05:17:16 maxv Exp $");
|
||||
__RCSID("$NetBSD: kvm_x86_64.c,v 1.13 2022/01/10 19:51:30 christos Exp $");
|
||||
#endif
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
|
@ -269,7 +269,6 @@ int
|
|||
_kvm_mdopen(kvm_t *kd)
|
||||
{
|
||||
|
||||
kd->usrstack = USRSTACK;
|
||||
kd->min_uva = VM_MIN_ADDRESS;
|
||||
kd->max_uva = VM_MAXUSER_ADDRESS;
|
||||
|
||||
|
|
Loading…
Reference in New Issue