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NetBSD/usr.bin/pmap/pmap.c
atatat a26b7f4d29 Make pmap work on LOCKDEBUG *and* non-LOCKDEBUG kernels (previously it 
would fail in spectacular ways on LOCKDEBUG kernels) by compiling the
groveler code twice (the second time with LOCKDEBUG defined so that
the appropriate structures get larger in the right way).  We currently
decide if we are operating on a kernel with LOCKDEBUG enabled if the
kernel's vm_map has referential integrity between a few pointers
and/or values.

Also, if you use more than one -v, you get a * on a line by itself in
between gaps in entries.  It makes finding gaps much easier visually.
2003-01-08 20:25:12 +00:00

668 lines
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/* $NetBSD: pmap.c,v 1.10 2003/01/08 20:25:12 atatat Exp $ */
/*
* Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Brown.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: pmap.c,v 1.10 2003/01/08 20:25:12 atatat Exp $");
#endif
#include <string.h>
#ifndef LOCKDEBUG
#define VERSION regular
#else /* LOCKDEBUG */
#define VERSION lockdebug
#endif /* LOCKDEBUG */
#include "pmap.h"
#include "main.h"
static void dump_vm_map(kvm_t *, pid_t, struct kinfo_proc2 *, struct kbit *,
struct kbit *, char *);
static size_t dump_vm_map_entry(kvm_t *, pid_t, struct kinfo_proc2 *,
struct kbit *, struct kbit *, int);
static char *findname(kvm_t *, struct kbit *, struct kbit *, struct kbit *,
struct kbit *, struct kbit *);
static int search_cache(kvm_t *, struct kbit *, char **, char *, size_t);
/* when recursing, output is indented */
#define indent(n) ((n) * (recurse > 1 ? recurse - 1 : 0))
void
PMAPFUNC(process_map,VERSION)(kvm_t *kd, pid_t pid, struct kinfo_proc2 *proc)
{
struct kbit kbit[2], *vmspace, *vm_map;
char *thing;
vmspace = &kbit[0];
vm_map = &kbit[1];
A(vmspace) = 0;
A(vm_map) = 0;
if (pid > 0) {
heapfound = 0;
A(vmspace) = (u_long)proc->p_vmspace;
S(vmspace) = sizeof(struct vmspace);
KDEREF(kd, vmspace);
thing = "proc->p_vmspace.vm_map";
} else {
heapfound = 1; /* but really, do kernels have a heap? */
A(vmspace) = 0;
S(vmspace) = 0;
thing = "kernel_map";
}
S(vm_map) = sizeof(struct vm_map);
if (pid > 0) {
A(vm_map) = A(vmspace) + offsetof(struct vmspace, vm_map);
memcpy(D(vm_map, vm_map), &D(vmspace, vmspace)->vm_map,
S(vm_map));
} else {
A(vm_map) = kernel_map_addr;
KDEREF(kd, vm_map);
}
(*dump_vm_map)(kd, pid, proc, vmspace, vm_map, thing);
}
static void
dump_vm_map(kvm_t *kd, pid_t pid, struct kinfo_proc2 *proc,
struct kbit *vmspace, struct kbit *vm_map, char *mname)
{
struct kbit kbit[2], *header, *vm_map_entry;
struct vm_map_entry *last, *next;
size_t total;
u_long addr, end;
header = &kbit[0];
vm_map_entry = &kbit[1];
A(header) = 0;
A(vm_map_entry) = 0;
A(header) = A(vm_map) + offsetof(struct vm_map, header);
S(header) = sizeof(struct vm_map_entry);
memcpy(D(header, vm_map_entry), &D(vm_map, vm_map)->header, S(header));
if (pid > 0 && (debug & PRINT_VMSPACE)) {
printf("proc->p_vmspace %p = {", P(vmspace));
printf(" vm_refcnt = %d,", D(vmspace, vmspace)->vm_refcnt);
printf(" vm_shm = %p,\n", D(vmspace, vmspace)->vm_shm);
printf(" vm_rssize = %d,", D(vmspace, vmspace)->vm_rssize);
printf(" vm_swrss = %d,", D(vmspace, vmspace)->vm_swrss);
printf(" vm_tsize = %d,", D(vmspace, vmspace)->vm_tsize);
printf(" vm_dsize = %d,\n", D(vmspace, vmspace)->vm_dsize);
printf(" vm_ssize = %d,", D(vmspace, vmspace)->vm_ssize);
printf(" vm_taddr = %p,", D(vmspace, vmspace)->vm_taddr);
printf(" vm_daddr = %p,\n", D(vmspace, vmspace)->vm_daddr);
printf(" vm_maxsaddr = %p,",
D(vmspace, vmspace)->vm_maxsaddr);
printf(" vm_minsaddr = %p }\n",
D(vmspace, vmspace)->vm_minsaddr);
}
if (debug & PRINT_VM_MAP) {
printf("%*s%s %p = {", indent(2), "", mname, P(vm_map));
printf(" pmap = %p,\n", D(vm_map, vm_map)->pmap);
printf("%*s lock = <struct lock>,", indent(2), "");
printf(" header = <struct vm_map_entry>,");
printf(" nentries = %d,\n", D(vm_map, vm_map)->nentries);
printf("%*s size = %lx,", indent(2), "",
D(vm_map, vm_map)->size);
printf(" ref_count = %d,", D(vm_map, vm_map)->ref_count);
printf(" ref_lock = <struct simplelock>,\n");
printf("%*s hint = %p,", indent(2), "",
D(vm_map, vm_map)->hint);
printf(" hint_lock = <struct simplelock>,\n");
printf("%*s first_free = %p,", indent(2), "",
D(vm_map, vm_map)->first_free);
printf(" flags = %x <%s%s%s%s%s%s >,\n", D(vm_map, vm_map)->flags,
D(vm_map, vm_map)->flags & VM_MAP_PAGEABLE ? " PAGEABLE" : "",
D(vm_map, vm_map)->flags & VM_MAP_INTRSAFE ? " INTRSAFE" : "",
D(vm_map, vm_map)->flags & VM_MAP_WIREFUTURE ? " WIREFUTURE" : "",
D(vm_map, vm_map)->flags & VM_MAP_BUSY ? " BUSY" : "",
D(vm_map, vm_map)->flags & VM_MAP_WANTLOCK ? " WANTLOCK" : ""
#ifdef VM_MAP_DYING
, D(vm_map, vm_map)->flags & VM_MAP_DYING ? " DYING" : ""
#endif
#ifdef VM_MAP_TOPDOWN
, D(vm_map, vm_map)->flags & VM_MAP_TOPDOWN ? " TOPDOWN" : ""
#endif
);
printf("%*s flags_lock = <struct simplelock>,", indent(2), "");
printf(" timestamp = %u }\n", D(vm_map, vm_map)->timestamp);
}
if (print_ddb) {
char *name;
if (A(vm_map) == kernel_map_addr)
name = "kernel_map";
else if (P(vm_map) == kmem_map)
name = "kmem_map";
else if (P(vm_map) == mb_map)
name = "mb_map";
else if (P(vm_map) == phys_map)
name = "phys_map";
else if (P(vm_map) == exec_map)
name = "exec_map";
else if (P(vm_map) == pager_map)
name = "pager_map";
else
name = NULL;
printf("%*s%s %p: [0x%lx->0x%lx]\n", indent(2), "",
recurse < 2 ? "MAP" : "SUBMAP", P(vm_map),
D(vm_map, vm_map)->min_offset,
D(vm_map, vm_map)->max_offset);
printf("\t%*s#ent=%d, sz=%ld, ref=%d, version=%d, flags=0x%x\n",
indent(2), "", D(vm_map, vm_map)->nentries,
D(vm_map, vm_map)->size, D(vm_map, vm_map)->ref_count,
D(vm_map, vm_map)->timestamp, D(vm_map, vm_map)->flags);
printf("\t%*spmap=%p(resident=<unknown>)\n", indent(2), "",
D(vm_map, vm_map)->pmap);
if (verbose && name != NULL)
printf("\t%*s([ %s ])\n", indent(2), "", name);
}
(*dump_vm_map_entry)(kd, pid, proc, vmspace, header, 1);
/*
* we're not recursing into a submap, so print headers
*/
if (recurse < 2) {
/* headers */
#ifdef DISABLED_HEADERS
if (print_map)
printf("%-*s %-*s rwx RWX CPY NCP I W A\n",
(int)sizeof(long) * 2 + 2, "Start",
(int)sizeof(long) * 2 + 2, "End");
if (print_maps)
printf("%-*s %-*s rwxp %-*s Dev Inode File\n",
(int)sizeof(long) * 2 + 0, "Start",
(int)sizeof(long) * 2 + 0, "End",
(int)sizeof(long) * 2 + 0, "Offset");
if (print_solaris)
printf("%-*s %*s Protection File\n",
(int)sizeof(long) * 2 + 0, "Start",
(int)sizeof(int) * 2 - 1, "Size ");
#endif
if (print_all)
printf("%-*s %-*s %*s %-*s rwxpc RWX I/W/A Dev %*s"
" - File\n",
(int)sizeof(long) * 2, "Start",
(int)sizeof(long) * 2, "End",
(int)sizeof(int) * 2, "Size ",
(int)sizeof(long) * 2, "Offset",
(int)sizeof(int) * 2, "Inode");
}
/* these are the "sub entries" */
total = 0;
next = D(header, vm_map_entry)->next;
last = P(header);
end = 0;
while (next != 0 && next != last) {
addr = (u_long)next;
A(vm_map_entry) = addr;
S(vm_map_entry) = sizeof(struct vm_map_entry);
KDEREF(kd, vm_map_entry);
next = D(vm_map_entry, vm_map_entry)->next;
if (end == 0)
end = D(vm_map_entry, vm_map_entry)->start;
else if (verbose > 1 &&
end != D(vm_map_entry, vm_map_entry)->start)
printf("%*s*\n", indent(2), "");
total += (*dump_vm_map_entry)(kd, pid, proc, vmspace,
vm_map_entry, 0);
end = D(vm_map_entry, vm_map_entry)->end;
}
/*
* we're not recursing into a submap, so print totals
*/
if (recurse < 2) {
if (print_solaris)
printf("%-*s %8luK\n",
(int)sizeof(void *) * 2 - 2, " total",
(unsigned long)total);
if (print_all)
printf("%-*s %9luk\n",
(int)sizeof(void *) * 4 - 1, " total",
(unsigned long)total);
}
}
static size_t
dump_vm_map_entry(kvm_t *kd, pid_t pid, struct kinfo_proc2 * proc,
struct kbit *vmspace, struct kbit *vm_map_entry, int ishead)
{
struct kbit kbit[3];
struct kbit *uvm_obj, *vp, *vfs;
struct vm_map_entry *vme;
size_t sz;
char *name;
dev_t dev;
ino_t inode;
uvm_obj = &kbit[0];
vp = &kbit[1];
vfs = &kbit[2];
A(uvm_obj) = 0;
A(vp) = 0;
A(vfs) = 0;
vme = D(vm_map_entry, vm_map_entry);
if ((ishead && (debug & PRINT_VM_MAP_HEADER)) ||
(!ishead && (debug & PRINT_VM_MAP_ENTRY))) {
printf("%*s%s %p = {", indent(2), "",
ishead ? "vm_map.header" : "vm_map_entry",
P(vm_map_entry));
printf(" prev = %p,", vme->prev);
printf(" next = %p,\n", vme->next);
printf("%*s start = %lx,", indent(2), "", vme->start);
printf(" end = %lx,", vme->end);
printf(" object.uvm_obj/sub_map = %p,\n", vme->object.uvm_obj);
printf("%*s offset = %" PRIx64 ",", indent(2), "",
vme->offset);
printf(" etype = %x <%s%s%s%s >,", vme->etype,
vme->etype & UVM_ET_OBJ ? " OBJ" : "",
vme->etype & UVM_ET_SUBMAP ? " SUBMAP" : "",
vme->etype & UVM_ET_COPYONWRITE ? " COW" : "",
vme->etype & UVM_ET_NEEDSCOPY ? " NEEDSCOPY" : "");
printf(" protection = %x,\n", vme->protection);
printf("%*s max_protection = %x,", indent(2), "",
vme->max_protection);
printf(" inheritance = %d,", vme->inheritance);
printf(" wired_count = %d,\n", vme->wired_count);
printf("%*s aref = { ar_pageoff = %x, ar_amap = %p },",
indent(2), "", vme->aref.ar_pageoff, vme->aref.ar_amap);
printf(" advice = %d,\n", vme->advice);
printf("%*s flags = %x <%s%s > }\n", indent(2), "",
vme->flags,
vme->flags & UVM_MAP_STATIC ? " STATIC" : "",
vme->flags & UVM_MAP_KMEM ? " KMEM" : "");
}
if (ishead)
return (0);
A(vp) = 0;
A(uvm_obj) = 0;
if (vme->object.uvm_obj != NULL) {
P(uvm_obj) = vme->object.uvm_obj;
S(uvm_obj) = sizeof(struct uvm_object);
KDEREF(kd, uvm_obj);
if (UVM_ET_ISOBJ(vme) &&
UVM_OBJ_IS_VNODE(D(uvm_obj, uvm_object))) {
P(vp) = P(uvm_obj);
S(vp) = sizeof(struct vnode);
KDEREF(kd, vp);
}
}
A(vfs) = NULL;
if (P(vp) != NULL && D(vp, vnode)->v_mount != NULL) {
P(vfs) = D(vp, vnode)->v_mount;
S(vfs) = sizeof(struct mount);
KDEREF(kd, vfs);
D(vp, vnode)->v_mount = D(vfs, mount);
}
/*
* dig out the device number and inode number from certain
* file system types.
*/
#define V_DATA_IS(vp, type, d, i) do { \
struct kbit data; \
P(&data) = D(vp, vnode)->v_data; \
S(&data) = sizeof(*D(&data, type)); \
KDEREF(kd, &data); \
dev = D(&data, type)->d; \
inode = D(&data, type)->i; \
} while (0/*CONSTCOND*/)
dev = 0;
inode = 0;
if (A(vp) &&
D(vp, vnode)->v_type == VREG &&
D(vp, vnode)->v_data != NULL) {
switch (D(vp, vnode)->v_tag) {
case VT_UFS:
case VT_LFS:
case VT_EXT2FS:
V_DATA_IS(vp, inode, i_dev, i_number);
break;
case VT_ISOFS:
V_DATA_IS(vp, iso_node, i_dev, i_number);
break;
case VT_NON:
case VT_NFS:
case VT_MFS:
case VT_MSDOSFS:
case VT_LOFS:
case VT_FDESC:
case VT_PORTAL:
case VT_NULL:
case VT_UMAP:
case VT_KERNFS:
case VT_PROCFS:
case VT_AFS:
case VT_UNION:
case VT_ADOSFS:
case VT_CODA:
case VT_FILECORE:
case VT_NTFS:
case VT_VFS:
case VT_OVERLAY:
case VT_SMBFS:
break;
}
}
name = findname(kd, vmspace, vm_map_entry, vp, vfs, uvm_obj);
if (print_map) {
printf("%*s0x%lx 0x%lx %c%c%c %c%c%c %s %s %d %d %d",
indent(2), "",
vme->start, vme->end,
(vme->protection & VM_PROT_READ) ? 'r' : '-',
(vme->protection & VM_PROT_WRITE) ? 'w' : '-',
(vme->protection & VM_PROT_EXECUTE) ? 'x' : '-',
(vme->max_protection & VM_PROT_READ) ? 'r' : '-',
(vme->max_protection & VM_PROT_WRITE) ? 'w' : '-',
(vme->max_protection & VM_PROT_EXECUTE) ? 'x' : '-',
(vme->etype & UVM_ET_COPYONWRITE) ? "COW" : "NCOW",
(vme->etype & UVM_ET_NEEDSCOPY) ? "NC" : "NNC",
vme->inheritance, vme->wired_count,
vme->advice);
if (verbose) {
if (inode)
printf(" %d,%d %d",
major(dev), minor(dev), inode);
if (name[0])
printf(" %s", name);
}
printf("\n");
}
if (print_maps) {
printf("%*s%0*lx-%0*lx %c%c%c%c %0*" PRIx64 " %02x:%02x %d %s\n",
indent(2), "",
(int)sizeof(void *) * 2, vme->start,
(int)sizeof(void *) * 2, vme->end,
(vme->protection & VM_PROT_READ) ? 'r' : '-',
(vme->protection & VM_PROT_WRITE) ? 'w' : '-',
(vme->protection & VM_PROT_EXECUTE) ? 'x' : '-',
(vme->etype & UVM_ET_COPYONWRITE) ? 'p' : 's',
(int)sizeof(void *) * 2,
vme->offset,
major(dev), minor(dev), inode,
(name[0] != ' ') || verbose ? name : "");
}
if (print_ddb) {
printf("%*s - %p: 0x%lx->0x%lx: obj=%p/0x%" PRIx64 ", amap=%p/%d\n",
indent(2), "",
P(vm_map_entry), vme->start, vme->end,
vme->object.uvm_obj, vme->offset,
vme->aref.ar_amap, vme->aref.ar_pageoff);
printf("\t%*ssubmap=%c, cow=%c, nc=%c, prot(max)=%d/%d, inh=%d, "
"wc=%d, adv=%d\n",
indent(2), "",
(vme->etype & UVM_ET_SUBMAP) ? 'T' : 'F',
(vme->etype & UVM_ET_COPYONWRITE) ? 'T' : 'F',
(vme->etype & UVM_ET_NEEDSCOPY) ? 'T' : 'F',
vme->protection, vme->max_protection,
vme->inheritance, vme->wired_count, vme->advice);
if (verbose) {
printf("\t%*s", indent(2), "");
if (inode)
printf("(dev=%d,%d ino=%d [%s] [%p])\n",
major(dev), minor(dev), inode,
name, P(vp));
else if (name[0] == ' ')
printf("(%s)\n", &name[2]);
else
printf("(%s)\n", name);
}
}
sz = 0;
if (print_solaris) {
char prot[30];
prot[0] = '\0';
prot[1] = '\0';
if (vme->protection & VM_PROT_READ)
strcat(prot, "/read");
if (vme->protection & VM_PROT_WRITE)
strcat(prot, "/write");
if (vme->protection & VM_PROT_EXECUTE)
strcat(prot, "/exec");
sz = (size_t)((vme->end - vme->start) / 1024);
printf("%*s%0*lX %6luK %-15s %s\n",
indent(2), "",
(int)sizeof(void *) * 2,
(unsigned long)vme->start,
(unsigned long)sz,
&prot[1],
name);
}
if (print_all) {
sz = (size_t)((vme->end - vme->start) / 1024);
printf(A(vp) ?
"%*s%0*lx-%0*lx %7luk %0*" PRIx64 " %c%c%c%c%c (%c%c%c) %d/%d/%d %02d:%02d %7d - %s [%p]\n" :
"%*s%0*lx-%0*lx %7luk %0*" PRIx64 " %c%c%c%c%c (%c%c%c) %d/%d/%d %02d:%02d %7d - %s\n",
indent(2), "",
(int)sizeof(void *) * 2,
vme->start,
(int)sizeof(void *) * 2,
vme->end - (vme->start != vme->end ? 1 : 0),
(unsigned long)sz,
(int)sizeof(void *) * 2,
vme->offset,
(vme->protection & VM_PROT_READ) ? 'r' : '-',
(vme->protection & VM_PROT_WRITE) ? 'w' : '-',
(vme->protection & VM_PROT_EXECUTE) ? 'x' : '-',
(vme->etype & UVM_ET_COPYONWRITE) ? 'p' : 's',
(vme->etype & UVM_ET_NEEDSCOPY) ? '+' : '-',
(vme->max_protection & VM_PROT_READ) ? 'r' : '-',
(vme->max_protection & VM_PROT_WRITE) ? 'w' : '-',
(vme->max_protection & VM_PROT_EXECUTE) ? 'x' : '-',
vme->inheritance,
vme->wired_count,
vme->advice,
major(dev), minor(dev), inode,
name, P(vp));
}
/* no access allowed, don't count space */
if ((vme->protection & rwx) == 0)
sz = 0;
if (recurse && (vme->etype & UVM_ET_SUBMAP)) {
struct kbit mkbit, *submap;
recurse++;
submap = &mkbit;
P(submap) = vme->object.sub_map;
S(submap) = sizeof(*vme->object.sub_map);
KDEREF(kd, submap);
(*dump_vm_map)(kd, pid, proc, vmspace, submap, "submap");
recurse--;
}
return (sz);
}
static char*
findname(kvm_t *kd, struct kbit *vmspace,
struct kbit *vm_map_entry, struct kbit *vp,
struct kbit *vfs, struct kbit *uvm_obj)
{
static char buf[1024], *name;
struct vm_map_entry *vme;
size_t l;
vme = D(vm_map_entry, vm_map_entry);
if (UVM_ET_ISOBJ(vme)) {
if (A(vfs)) {
l = (unsigned)strlen(D(vfs, mount)->mnt_stat.f_mntonname);
switch (search_cache(kd, vp, &name, buf, sizeof(buf))) {
case 0: /* found something */
name--;
*name = '/';
/*FALLTHROUGH*/
case 2: /* found nothing */
name -= 5;
memcpy(name, " -?- ", (size_t)5);
name -= l;
memcpy(name,
D(vfs, mount)->mnt_stat.f_mntonname, l);
break;
case 1: /* all is well */
name--;
*name = '/';
if (l != 1) {
name -= l;
memcpy(name,
D(vfs, mount)->mnt_stat.f_mntonname, l);
}
break;
}
}
else if (UVM_OBJ_IS_DEVICE(D(uvm_obj, uvm_object))) {
struct kbit kdev;
dev_t dev;
P(&kdev) = P(uvm_obj);
S(&kdev) = sizeof(struct uvm_device);
KDEREF(kd, &kdev);
dev = D(&kdev, uvm_device)->u_device;
name = devname(dev, S_IFCHR);
if (name != NULL)
snprintf(buf, sizeof(buf), "/dev/%s", name);
else
snprintf(buf, sizeof(buf), " [ device %d,%d ]",
major(dev), minor(dev));
name = buf;
}
else if (UVM_OBJ_IS_AOBJ(D(uvm_obj, uvm_object)))
name = " [ uvm_aobj ]";
else if (UVM_OBJ_IS_UBCPAGER(D(uvm_obj, uvm_object)))
name = " [ ubc_pager ]";
else if (UVM_OBJ_IS_VNODE(D(uvm_obj, uvm_object)))
name = " [ ?VNODE? ]";
else {
snprintf(buf, sizeof(buf), " [ ?? %p ?? ]",
D(uvm_obj, uvm_object)->pgops);
name = buf;
}
}
else if (D(vmspace, vmspace)->vm_maxsaddr <=
(caddr_t)vme->start &&
(D(vmspace, vmspace)->vm_maxsaddr + (size_t)maxssiz) >=
(caddr_t)vme->end)
name = " [ stack ]";
else if ((vme->protection & rwx) == rwx && !heapfound) {
/* XXX this could probably be done better */
heapfound = 1;
name = " [ heap ]";
}
else
name = " [ anon ]";
return (name);
}
static int
search_cache(kvm_t *kd, struct kbit *vp, char **name, char *buf, size_t blen)
{
char *o, *e;
struct cache_entry *ce;
struct kbit svp;
u_long cid;
if (nchashtbl == NULL)
load_name_cache(kd);
P(&svp) = P(vp);
S(&svp) = sizeof(struct vnode);
cid = D(vp, vnode)->v_id;
e = &buf[blen - 1];
o = e;
do {
LIST_FOREACH(ce, &lcache, ce_next)
if (ce->ce_vp == P(&svp) && ce->ce_cid == cid)
break;
if (ce && ce->ce_vp == P(&svp) && ce->ce_cid == cid) {
if (o != e)
*(--o) = '/';
o -= ce->ce_nlen;
memcpy(o, ce->ce_name, (unsigned)ce->ce_nlen);
P(&svp) = ce->ce_pvp;
cid = ce->ce_pcid;
}
else
break;
} while (1/*CONSTCOND*/);
*e = '\0';
*name = o;
if (e == o)
return (2);
KDEREF(kd, &svp);
return (D(&svp, vnode)->v_flag & VROOT);
}
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