108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/* $Id$ */
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/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the Gnome Top Library.
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Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
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The Gnome Top Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The Gnome Top Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <config.h>
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#include <glibtop/prockernel.h>
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#include <kvm.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <machine/pcb.h>
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#include <machine/tss.h>
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#include <unistd.h>
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#include <fcntl.h>
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static const unsigned long _glibtop_sysdeps_proc_kernel =
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(1 << GLIBTOP_PROC_KERNEL_K_FLAGS) +
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(1 << GLIBTOP_PROC_KERNEL_MIN_FLT) +
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(1 << GLIBTOP_PROC_KERNEL_MAJ_FLT) +
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(1 << GLIBTOP_PROC_KERNEL_CMIN_FLT) +
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(1 << GLIBTOP_PROC_KERNEL_CMAJ_FLT) +
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(1 << GLIBTOP_PROC_KERNEL_KSTK_ESP) +
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(1 << GLIBTOP_PROC_KERNEL_KSTK_EIP) +
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(1 << GLIBTOP_PROC_KERNEL_WCHAN);
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/* Provides detailed information about a process. */
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void
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glibtop_get_proc_kernel_s (glibtop *server,
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glibtop_proc_kernel *buf,
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pid_t pid)
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{
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struct kinfo_proc *pinfo;
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int count;
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struct i386tss *pcb_tss;
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int kmem;
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struct pstats ps;
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struct user usr;
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glibtop_init_r (&server, 0, 0);
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memset (buf, 0, sizeof (glibtop_proc_kernel));
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/* Get the information pertaining to the given PID */
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pinfo = kvm_getprocs(server->machine.kd, KERN_PROC_PID, pid, &count);
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if (count != 1) {
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return; /* the 0-filled struct, since we can't get any info */
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}
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kmem = open("/dev/kmem", O_RDONLY, NULL);
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if (f == NULL) {
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/* FIXME: error */
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}
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/* Read the p_stats struct from kernel memory */
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lseek(f, (long)pinfo[0].kp_proc.p_stats, SEEK_SET);
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read(f, &ps, sizeof(pstats));
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/* Read the struct at kp_proc.p_addr */
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lseek(f, (long)pinfo[0].kp_proc.p_addr, SEEK_SET);
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read(f, &usr, sizeof(user));
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close(f);
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/* kflags:
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kinfo_proc.e_flag?
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proc.p_flag
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proc.p_stat
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*/
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buf->kflags = pinfo[0].kp_eproc.e_flag;
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/* min_flt: rusage.ru_minflt */
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buf->min_flt = ps.p_ru.ru_minflt;
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/* maj_flt: rusage.ru_majflt */
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buf->majflt = ps.p_ru.ru_majflt;
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/* cmin_flt: */
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buf->cmin_flt = ps.p_cru.ru_minflt;
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/* cmaj_flt: */
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buf->cmaj_flt = ps.p_cru.ru_majflt;
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/* kstk_esp: pcb_tss.tss_esp */
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buf->kstk_esp = (unsigned long)usr.u_pcb.pcb_ksp;
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/* kstk_eip: pcb_tss.tss_eip */
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buf->kstk_eip = (unsigned long)usr.u_pcb.pcb_pc;
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/* wchan : kinfo_proc.proc.p_wchan */
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buf->wchan = (unsigned long)pinfo[0].kp_proc.p_wchan;
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}
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