a88940798c
-A address Dumps the vm_amap structure found at address.
-E address Dumps the vm_map_entry structure found at address.
-S address Dumps the vmspace structure found at address.
-V address Dumps the vm_map structure found at address.
This required reorganizing the code a little, which led to some
cleanup (yay!). These new methods are executed without any extra
privileges, so you need read access on /dev/mem or on the kernel core
into which you are digging.
This should be useful for, eg, examining amaps are corrupt when being
destroyed, which can cause a kernel panic (and, hence, are no longer
connected to a map entry, or the map entry is no longer connected to a
vm_map/vmspace).
The options in the man page have also been reorganized.
187 lines
5.5 KiB
C
187 lines
5.5 KiB
C
/* $NetBSD: pmap.h,v 1.3 2003/04/04 03:49:20 atatat Exp $ */
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/*
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* Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Brown.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* only pull in the headers once. if we attempt to pull them in
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* again, we get namespace collisions on some structures, and we don't
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* want to redefine some of them since it will affect the layout of
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* the the struct kbit.
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*/
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#ifndef PMAP_HEADERS
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#include <err.h>
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#include <kvm.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/uio.h>
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#include <sys/namei.h>
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#include <sys/sysctl.h>
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#include <uvm/uvm.h>
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#include <uvm/uvm_device.h>
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#include <ufs/ufs/inode.h>
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#undef doff_t
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#undef IN_ACCESS
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#include <isofs/cd9660/iso.h>
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#include <isofs/cd9660/cd9660_node.h>
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#define PMAP_HEADERS
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#endif /* PMAP_HEADERS */
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#ifndef CONCAT
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#define CONCAT(x,y) __CONCAT(x,y)
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#endif
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#ifndef PMAPFUNC
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#define PMAPFUNC(x,y) CONCAT(x,CONCAT(_,y))
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#endif
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/*
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* if the definition of the kbit structure (and the accessor macros)
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* is already established, don't redefine it.
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*/
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#ifndef struct_kbit
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/*
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* stolen (and munged) from #include <uvm/uvm_object.h>
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*/
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#define UVM_OBJ_IS_VNODE(uobj) ((uobj)->pgops == uvm_vnodeops)
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#define UVM_OBJ_IS_AOBJ(uobj) ((uobj)->pgops == aobj_pager)
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#define UVM_OBJ_IS_DEVICE(uobj) ((uobj)->pgops == uvm_deviceops)
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#define UVM_OBJ_IS_UBCPAGER(uobj) ((uobj)->pgops == ubc_pager)
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/*
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* stolen from #include <uvm/uvm_amap.h>
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*/
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#define PPREF_NONE ((int *) -1)
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/* the size of the object in the kernel */
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#define S(x) ((x)->k_size)
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/* the address of the object in kernel, two forms */
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#define A(x) ((x)->k_addr.k_addr_ul)
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#define P(x) ((x)->k_addr.k_addr_p)
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/* the data from the kernel */
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#define D(x,d) (&((x)->k_data.d))
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/* suck the data from the kernel */
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#define _KDEREF(kd, addr, dst, sz) do { \
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ssize_t len; \
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len = kvm_read((kd), (addr), (dst), (sz)); \
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if (len != (sz)) \
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errx(1, "trying to read %lu bytes from %lx: %s", \
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(unsigned long)(sz), (addr), kvm_geterr(kd)); \
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} while (0/*CONSTCOND*/)
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/* suck the data using the structure */
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#define KDEREF(kd, item) _KDEREF((kd), A(item), D(item, data), S(item))
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struct kbit {
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/*
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* size of data chunk
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*/
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size_t k_size;
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/*
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* something for printf() and something for kvm_read()
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*/
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union {
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void *k_addr_p;
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u_long k_addr_ul;
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} k_addr;
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/*
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* where we actually put the "stuff"
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*/
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union {
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char data[1];
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struct vmspace vmspace;
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struct vm_map vm_map;
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struct vm_map_entry vm_map_entry;
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struct vnode vnode;
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struct uvm_object uvm_object;
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struct mount mount;
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struct namecache namecache;
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struct inode inode;
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struct iso_node iso_node;
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struct uvm_device uvm_device;
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struct vm_amap amap;
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struct vm_anon anon;
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} k_data;
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};
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#define struct_kbit
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#endif /* struct_kbit */
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/*
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* VERSION, if not defined, defaults to "regular" or "lockdebug" (if
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* LOCKDEBUG is defined)
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*/
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#ifndef VERSION
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#ifndef LOCKDEBUG
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#define VERSION regular
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#else /* LOCKDEBUG */
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#define VERSION lockdebug
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#endif /* LOCKDEBUG */
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#define undef_VERSION
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#endif /* VERSION */
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/*
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* this is the *actual* module interface
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*/
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void PMAPFUNC(process_map,VERSION)(kvm_t *, struct kinfo_proc2 *,
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struct kbit *, const char *);
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void PMAPFUNC(dump_vm_map,VERSION)(kvm_t *, struct kinfo_proc2 *,
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struct kbit *, struct kbit *, const char *);
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size_t PMAPFUNC(dump_vm_map_entry,VERSION)(kvm_t *, struct kinfo_proc2 *,
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struct kbit *, struct kbit *, int);
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void PMAPFUNC(dump_amap,VERSION)(kvm_t *, struct kbit *);
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/*
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* if we defined VERSION here, we should undef it now that we're done.
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*/
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#ifdef undef_VERSION
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#undef VERSION
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#undef undef_VERSION
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#endif /* undef_VERSION */
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