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/* Copyright (C) 1998 Joshua Sled
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This file is part of LibGTop 1.0.
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Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procmem.h>
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#include <glibtop_suid.h>
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#include <kvm.h>
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/resource.h>
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#if defined(__NetBSD__) && (__NetBSD_Version__ >= 105020000)
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#include <uvm/uvm_extern.h>
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#else
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#include <vm/vm_object.h>
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#include <vm/vm_map.h>
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#endif
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#include <sys/vnode.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ufs/inode.h>
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#include <sys/ucred.h>
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#if (!defined __OpenBSD__) && (!defined __bsdi__)
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#include <sys/user.h>
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#endif
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#include <sys/sysctl.h>
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#if defined(__NetBSD__) && (__NetBSD_Version__ >= 105020000)
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#include <uvm/uvm.h>
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#else
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#include <vm/vm.h>
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#endif
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#if defined(__NetBSD__) && \
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(__NetBSD_Version__ >= 104000000) && (__NetBSD_Version__ < 105020000)
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/* Fixme ... */
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#undef _KERNEL
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#define _UVM_UVM_AMAP_I_H_ 1
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#define _UVM_UVM_MAP_I_H_ 1
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#include <uvm/uvm.h>
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#endif
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static const unsigned long _glibtop_sysdeps_proc_mem =
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(1L << GLIBTOP_PROC_MEM_SIZE) +
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(1L << GLIBTOP_PROC_MEM_VSIZE) +
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(1L << GLIBTOP_PROC_MEM_RESIDENT) +
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(1L << GLIBTOP_PROC_MEM_RSS) +
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(1L << GLIBTOP_PROC_MEM_RSS_RLIM);
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static const unsigned long _glibtop_sysdeps_proc_mem_share =
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#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
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(1L << GLIBTOP_PROC_MEM_SHARE);
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#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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(1L << GLIBTOP_PROC_MEM_SHARE);
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#else
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0;
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#endif
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#ifndef LOG1024
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#define LOG1024 10
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#endif
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/* these are for getting the memory statistics */
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static int pageshift; /* log base 2 of the pagesize */
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/* define pagetok in terms of pageshift */
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#define pagetok(size) ((size) << pageshift)
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/* Init function. */
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void
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_glibtop_init_proc_mem_p (glibtop *server)
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{
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register int pagesize;
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/* get the page size with "getpagesize" and calculate pageshift
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* from it */
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pagesize = getpagesize ();
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pageshift = 0;
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while (pagesize > 1) {
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pageshift++;
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pagesize >>= 1;
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}
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/* we only need the amount of log(2)1024 for our conversion */
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pageshift -= LOG1024;
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server->sysdeps.proc_mem = _glibtop_sysdeps_proc_mem |
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_glibtop_sysdeps_proc_mem_share;
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}
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/* Provides detailed information about a process. */
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void
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glibtop_get_proc_mem_p (glibtop *server, glibtop_proc_mem *buf,
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pid_t pid)
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{
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struct kinfo_proc *pinfo;
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struct vm_map_entry entry, *first;
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struct vmspace *vms, vmspace;
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#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
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struct vnode vnode;
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#else
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struct vm_object object;
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#endif
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#if (!defined(__FreeBSD__) || (__FreeBSD_version < 500013)) && !defined(__FreeBSD_kernel__)
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struct plimit plimit;
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#endif
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int count;
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glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_MEM), 0);
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memset (buf, 0, sizeof (glibtop_proc_mem));
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if (server->sysdeps.proc_mem == 0)
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return;
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/* It does not work for the swapper task. */
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if (pid == 0) return;
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/* Get the process data */
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pinfo = kvm_getprocs (server->machine->kd, KERN_PROC_PID, pid, &count);
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if ((pinfo == NULL) || (count < 1)) {
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glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid);
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return;
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}
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#if (defined(__FreeBSD__) && (__FreeBSD_version >= 500013)) || defined(__FreeBSD_kernel__)
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#define PROC_VMSPACE ki_vmspace
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buf->rss_rlim = pinfo [0].ki_rssize;
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buf->vsize = buf->size = (guint64) pagetok
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(pinfo [0].ki_tsize + pinfo [0].ki_dsize + pinfo[0].ki_ssize)
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<< LOG1024;
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buf->resident = buf->rss = (guint64) pagetok
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(pinfo [0].ki_rssize) << LOG1024;
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#else
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#define PROC_VMSPACE kp_proc.p_vmspace
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if (kvm_read (server->machine->kd,
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(unsigned long) pinfo [0].PROC_VMSPACE,
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(char *) &plimit, sizeof (plimit)) != sizeof (plimit)) {
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glibtop_warn_io_r (server, "kvm_read (plimit)");
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return;
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}
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buf->rss_rlim = (guint64)
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(plimit.pl_rlimit [RLIMIT_RSS].rlim_cur);
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vms = &pinfo [0].kp_eproc.e_vm;
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buf->vsize = buf->size = (guint64) pagetok
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(vms->vm_tsize + vms->vm_dsize + vms->vm_ssize) << LOG1024;
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buf->resident = buf->rss = (guint64) pagetok
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(vms->vm_rssize) << LOG1024;
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#endif
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|
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/* Now we get the shared memory. */
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if (kvm_read (server->machine->kd,
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(unsigned long) pinfo [0].PROC_VMSPACE,
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(char *) &vmspace, sizeof (vmspace)) != sizeof (vmspace)) {
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glibtop_warn_io_r (server, "kvm_read (vmspace)");
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return;
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}
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first = vmspace.vm_map.header.next;
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if (kvm_read (server->machine->kd,
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(unsigned long) vmspace.vm_map.header.next,
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(char *) &entry, sizeof (entry)) != sizeof (entry)) {
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|
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glibtop_warn_io_r (server, "kvm_read (entry)");
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return;
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}
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|
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/* Walk through the `vm_map_entry' list ... */
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|
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/* I tested this a few times with `mmap'; as soon as you write
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* to the mmap'ed area, the object type changes from OBJT_VNODE
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* to OBJT_DEFAULT so if seems this really works. */
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while (entry.next != first) {
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if (kvm_read (server->machine->kd,
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(unsigned long) entry.next,
|
|
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&entry, sizeof (entry)) != sizeof (entry)) {
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|
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glibtop_warn_io_r (server, "kvm_read (entry)");
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return;
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}
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|
|
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#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
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#if (__FreeBSD__ >= 4) || defined(__FreeBSD_kernel__)
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if (entry.eflags & (MAP_ENTRY_IS_SUB_MAP))
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continue;
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#else
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if (entry.eflags & (MAP_ENTRY_IS_A_MAP|MAP_ENTRY_IS_SUB_MAP))
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continue;
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#endif
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#else
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#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
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if (UVM_ET_ISSUBMAP (&entry))
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continue;
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#else
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if (entry.is_a_map || entry.is_sub_map)
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continue;
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#endif
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#endif
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|
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#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
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if (!entry.object.uvm_obj)
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continue;
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|
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/* We're only interested in vnodes */
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|
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|
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if (kvm_read (server->machine->kd,
|
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(unsigned long) entry.object.uvm_obj,
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&vnode, sizeof (vnode)) != sizeof (vnode)) {
|
|
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glibtop_warn_io_r (server, "kvm_read (vnode)");
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|
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return;
|
|
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}
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|
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#else
|
|
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if (!entry.object.vm_object)
|
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continue;
|
|
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|
|
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/* We're only interested in `vm_object's */
|
|
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|
|
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if (kvm_read (server->machine->kd,
|
|
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(unsigned long) entry.object.vm_object,
|
|
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&object, sizeof (object)) != sizeof (object)) {
|
|
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glibtop_warn_io_r (server, "kvm_read (object)");
|
|
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return;
|
|
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}
|
|
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#endif
|
|
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d37888 |
/* If the object is of type vnode, add its size */
|
|
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d37888 |
|
|
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#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000)
|
|
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#if defined(UVM_VNODE_VALID)
|
|
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if (!vnode.v_uvm.u_flags & UVM_VNODE_VALID)
|
|
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continue;
|
|
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#endif
|
|
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if ((vnode.v_type != VREG) || (vnode.v_tag != VT_UFS) ||
|
|
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!vnode.v_data) continue;
|
|
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d37888 |
#if defined(__NetBSD__) && (__NetBSD_Version__ >= 105250000)
|
|
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d37888 |
/* Reference count must be at least two. */
|
|
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d37888 |
if (vnode.v_usecount <= 1)
|
|
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d37888 |
continue;
|
|
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d37888 |
|
|
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d37888 |
buf->share += pagetok (vnode.v_uobj.uo_npages) << LOG1024;
|
|
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d37888 |
#else
|
|
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d37888 |
|
|
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d37888 |
/* Reference count must be at least two. */
|
|
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d37888 |
if (vnode.v_uvm.u_obj.uo_refs <= 1)
|
|
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d37888 |
continue;
|
|
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d37888 |
|
|
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d37888 |
buf->share += pagetok (vnode.v_uvm.u_obj.uo_npages) << LOG1024;
|
|
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d37888 |
#endif /* __NetBSD_Version__ >= 105250000 */
|
|
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d37888 |
#endif
|
|
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d37888 |
|
|
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d37888 |
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
|
|
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d37888 |
if (object.type != OBJT_VNODE)
|
|
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d37888 |
continue;
|
|
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d37888 |
|
|
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d37888 |
buf->share += object.un_pager.vnp.vnp_size;
|
|
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d37888 |
#endif
|
|
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d37888 |
}
|
|
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d37888 |
|
|
Packit |
d37888 |
buf->flags = _glibtop_sysdeps_proc_mem |
|
|
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d37888 |
_glibtop_sysdeps_proc_mem_share;
|
|
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d37888 |
}
|