diff options
Diffstat (limited to 'sysdeps/freebsd/procmem.c')
| -rw-r--r-- | sysdeps/freebsd/procmem.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/sysdeps/freebsd/procmem.c b/sysdeps/freebsd/procmem.c new file mode 100644 index 00000000..05f66001 --- /dev/null +++ b/sysdeps/freebsd/procmem.c @@ -0,0 +1,259 @@ +/* $Id$ */ + +/* Copyright (C) 1998 Joshua Sled + This file is part of LibGTop 1.0. + + Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998. + + LibGTop is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + LibGTop is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + for more details. + + You should have received a copy of the GNU General Public License + along with LibGTop; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#include <glibtop.h> +#include <glibtop/error.h> +#include <glibtop/procmem.h> + +#include <glibtop_suid.h> + +#include <kvm.h> +#include <sys/param.h> +#include <sys/proc.h> +#include <sys/resource.h> +#include <vm/vm_object.h> +#include <vm/vm_map.h> + +#include <sys/vnode.h> +#include <ufs/ufs/quota.h> +#include <ufs/ufs/inode.h> + +#include <sys/ucred.h> +#if (!defined __OpenBSD__) && (!defined __bsdi__) +#include <sys/user.h> +#endif +#include <sys/sysctl.h> +#include <vm/vm.h> + +#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000) +/* Fixme ... */ +#undef _KERNEL +#define _UVM_UVM_AMAP_I_H_ 1 +#define _UVM_UVM_MAP_I_H_ 1 +#include <uvm/uvm.h> +#endif + +static const unsigned long _glibtop_sysdeps_proc_mem = +(1L << GLIBTOP_PROC_MEM_SIZE) + +(1L << GLIBTOP_PROC_MEM_VSIZE) + +(1L << GLIBTOP_PROC_MEM_RESIDENT) + +(1L << GLIBTOP_PROC_MEM_RSS) + +(1L << GLIBTOP_PROC_MEM_RSS_RLIM); + +static const unsigned long _glibtop_sysdeps_proc_mem_share = +#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000) +(1L << GLIBTOP_PROC_MEM_SHARE); +#elif defined(__FreeBSD__) +(1L << GLIBTOP_PROC_MEM_SHARE); +#else +0; +#endif + +#ifndef LOG1024 +#define LOG1024 10 +#endif + +/* these are for getting the memory statistics */ +static int pageshift; /* log base 2 of the pagesize */ + +/* define pagetok in terms of pageshift */ +#define pagetok(size) ((size) << pageshift) + +/* Init function. */ + +void +glibtop_init_proc_mem_p (glibtop *server) +{ + register int pagesize; + + /* get the page size with "getpagesize" and calculate pageshift + * from it */ + pagesize = getpagesize (); + pageshift = 0; + while (pagesize > 1) { + pageshift++; + pagesize >>= 1; + } + + /* we only need the amount of log(2)1024 for our conversion */ + pageshift -= LOG1024; + + server->sysdeps.proc_mem = _glibtop_sysdeps_proc_mem | + _glibtop_sysdeps_proc_mem_share; +} + +/* Provides detailed information about a process. */ + +void +glibtop_get_proc_mem_p (glibtop *server, glibtop_proc_mem *buf, + pid_t pid) +{ + struct kinfo_proc *pinfo; + struct vm_map_entry entry, *first; + struct vmspace *vms, vmspace; +#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000) + struct vnode vnode; + struct inode inode; +#else + struct vm_object object; +#endif + struct plimit plimit; + int count; + + glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_MEM), 0); + + memset (buf, 0, sizeof (glibtop_proc_mem)); + + if (server->sysdeps.proc_mem == 0) + return; + + /* It does not work for the swapper task. */ + if (pid == 0) return; + + /* Get the process data */ + pinfo = kvm_getprocs (server->machine.kd, KERN_PROC_PID, pid, &count); + if ((pinfo == NULL) || (count < 1)) { + glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid); + return; + } + + if (kvm_read (server->machine.kd, + (unsigned long) pinfo [0].kp_proc.p_limit, + (char *) &plimit, sizeof (plimit)) != sizeof (plimit)) { + glibtop_warn_io_r (server, "kvm_read (plimit)"); + return; + } + + buf->rss_rlim = (u_int64_t) + (plimit.pl_rlimit [RLIMIT_RSS].rlim_cur); + + vms = &pinfo [0].kp_eproc.e_vm; + + buf->vsize = buf->size = (u_int64_t) pagetok + (vms->vm_tsize + vms->vm_dsize + vms->vm_ssize) << LOG1024; + + buf->resident = buf->rss = (u_int64_t) pagetok + (vms->vm_rssize) << LOG1024; + + /* Now we get the shared memory. */ + + if (kvm_read (server->machine.kd, + (unsigned long) pinfo [0].kp_proc.p_vmspace, + (char *) &vmspace, sizeof (vmspace)) != sizeof (vmspace)) { + glibtop_warn_io_r (server, "kvm_read (vmspace)"); + return; + } + + first = vmspace.vm_map.header.next; + + if (kvm_read (server->machine.kd, + (unsigned long) vmspace.vm_map.header.next, + (char *) &entry, sizeof (entry)) != sizeof (entry)) { + glibtop_warn_io_r (server, "kvm_read (entry)"); + return; + } + + /* Walk through the `vm_map_entry' list ... */ + + /* I tested this a few times with `mmap'; as soon as you write + * to the mmap'ed area, the object type changes from OBJT_VNODE + * to OBJT_DEFAULT so if seems this really works. */ + + while (entry.next != first) { + if (kvm_read (server->machine.kd, + (unsigned long) entry.next, + &entry, sizeof (entry)) != sizeof (entry)) { + glibtop_warn_io_r (server, "kvm_read (entry)"); + return; + } + +#ifdef __FreeBSD__ +#if __FreeBSD__ >= 4 + if (entry.eflags & (MAP_ENTRY_IS_SUB_MAP)) + continue; +#else + if (entry.eflags & (MAP_ENTRY_IS_A_MAP|MAP_ENTRY_IS_SUB_MAP)) + continue; +#endif +#else +#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000) + if (UVM_ET_ISSUBMAP (&entry)) + continue; +#else + if (entry.is_a_map || entry.is_sub_map) + continue; +#endif +#endif + +#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000) + if (!entry.object.uvm_obj) + continue; + + /* We're only interested in vnodes */ + + if (kvm_read (server->machine.kd, + (unsigned long) entry.object.uvm_obj, + &vnode, sizeof (vnode)) != sizeof (vnode)) { + glibtop_warn_io_r (server, "kvm_read (vnode)"); + return; + } +#else + if (!entry.object.vm_object) + continue; + + /* We're only interested in `vm_object's */ + + if (kvm_read (server->machine.kd, + (unsigned long) entry.object.vm_object, + &object, sizeof (object)) != sizeof (object)) { + glibtop_warn_io_r (server, "kvm_read (object)"); + return; + } +#endif + /* If the object is of type vnode, add its size */ + +#if defined(__NetBSD__) && (__NetBSD_Version__ >= 104000000) + if (!vnode.v_uvm.u_flags & UVM_VNODE_VALID) + continue; + + if ((vnode.v_type != VREG) || (vnode.v_tag != VT_UFS) || + !vnode.v_data) continue; + + /* Reference count must be at least two. */ + if (vnode.v_uvm.u_obj.uo_refs <= 1) + continue; + + buf->share += pagetok (vnode.v_uvm.u_obj.uo_npages) << LOG1024; +#endif + +#ifdef __FreeBSD__ + if (object.type != OBJT_VNODE) + continue; + + buf->share += object.un_pager.vnp.vnp_size; +#endif + } + + buf->flags = _glibtop_sysdeps_proc_mem | + _glibtop_sysdeps_proc_mem_share; +} |