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Importing FreeBSD port of libgtop from Josh Sled.

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This commit is contained in:
Martin Baulig
1998-08-06 23:34:50 +00:00
parent 864867aeeb
commit 79f5a9c667
20 changed files with 554 additions and 244 deletions
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81
sysdeps/freebsd/prockernel.c
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@@ -2,7 +2,7 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the Gnome Top Library.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
The Gnome Top Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@@ -22,11 +22,86 @@
#include <config.h>
#include <glibtop/prockernel.h>
#include <kvm.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <machine/pcb.h>
#include <machine/tss.h>
#include <unistd.h>
#include <fcntl.h>
static const unsigned long _glibtop_sysdeps_proc_kernel =
(1 << GLIBTOP_PROC_KERNEL_K_FLAGS) +
(1 << GLIBTOP_PROC_KERNEL_MIN_FLT) +
(1 << GLIBTOP_PROC_KERNEL_MAJ_FLT) +
(1 << GLIBTOP_PROC_KERNEL_CMIN_FLT) +
(1 << GLIBTOP_PROC_KERNEL_CMAJ_FLT) +
(1 << GLIBTOP_PROC_KERNEL_KSTK_ESP) +
(1 << GLIBTOP_PROC_KERNEL_KSTK_EIP) +
(1 << GLIBTOP_PROC_KERNEL_WCHAN);
/* Provides detailed information about a process. */
void
glibtop_get_proc_kernel_p (glibtop *server, glibtop_proc_kernel *buf,
glibtop_get_proc_kernel_s (glibtop *server,
glibtop_proc_kernel *buf,
pid_t pid)
{
memset (buf, 0, sizeof (glibtop_proc_kernel));
struct kinfo_proc *pinfo;
int count;
struct i386tss *pcb_tss;
int kmem;
struct pstats ps;
struct user usr;
glibtop_init_r (&server, 0, 0);
memset (buf, 0, sizeof (glibtop_proc_kernel));
/* Get the information pertaining to the given PID */
pinfo = kvm_getprocs(server->machine.kd, KERN_PROC_PID, pid, &count);
if (count != 1) {
return; /* the 0-filled struct, since we can't get any info */
}
kmem = open("/dev/kmem", O_RDONLY, NULL);
if (f == NULL) {
/* FIXME: error */
}
/* Read the p_stats struct from kernel memory */
lseek(f, (long)pinfo[0].kp_proc.p_stats, SEEK_SET);
read(f, &ps, sizeof(pstats));
/* Read the struct at kp_proc.p_addr */
lseek(f, (long)pinfo[0].kp_proc.p_addr, SEEK_SET);
read(f, &usr, sizeof(user));
close(f);
/* kflags:
kinfo_proc.e_flag?
proc.p_flag
proc.p_stat
*/
buf->kflags = pinfo[0].kp_eproc.e_flag;
/* min_flt: rusage.ru_minflt */
buf->min_flt = ps.p_ru.ru_minflt;
/* maj_flt: rusage.ru_majflt */
buf->majflt = ps.p_ru.ru_majflt;
/* cmin_flt: */
buf->cmin_flt = ps.p_cru.ru_minflt;
/* cmaj_flt: */
buf->cmaj_flt = ps.p_cru.ru_majflt;
/* kstk_esp: pcb_tss.tss_esp */
buf->kstk_esp = (unsigned long)usr.u_pcb.pcb_ksp;
/* kstk_eip: pcb_tss.tss_eip */
buf->kstk_eip = (unsigned long)usr.u_pcb.pcb_pc;
/* wchan : kinfo_proc.proc.p_wchan */
buf->wchan = (unsigned long)pinfo[0].kp_proc.p_wchan;
}