3d91be41d1
of the missing functionality from procfs(4) and new functionality for monitoring and debugging specific processes. procstat(1) operates in the following modes: -b Display binary information for the process. -c Display command line arguments for the process. -f Display file descriptor information for the process. -k Display the stacks of kernel threads in the process. -s Display security credential information for the process. -t Display thread information for the process. -v Display virtual memory mappings for the process. Further revision and modes are expected. Testing, ideas, etc: cognet, sam, Skip Ford <skip at menantico dot com> Wesley Shields <wxs at atarininja dot org>
131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/*-
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* Copyright (c) 2007 Robert N. M. Watson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "procstat.h"
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void
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procstat_vm(pid_t pid, struct kinfo_proc *kipp)
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{
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struct kinfo_vmentry *freep, *kve;
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int error, i, name[4], ptrwidth;
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const char *str;
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size_t len;
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ptrwidth = 2*sizeof(void *) + 2;
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if (!hflag)
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printf("%5s %*s %*s %3s %4s %4s %3s %3s %2s %-2s %-s\n",
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"PID", ptrwidth, "START", ptrwidth, "END", "PRT", "RES",
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"PRES", "REF", "SHD", "FL", "TP", "PATH");
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name[0] = CTL_KERN;
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name[1] = KERN_PROC;
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name[2] = KERN_PROC_VMMAP;
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name[3] = pid;
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len = 0;
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error = sysctl(name, 4, NULL, &len, NULL, 0);
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if (error < 0 && errno != ESRCH && errno != EPERM) {
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warn("sysctl: kern.proc.vmmap: %d", pid);
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return;
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}
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if (error < 0)
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return;
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/*
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* Especially if running procstat -sv, we may need room for more
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* mappings when printing than were present when we queried, so pad
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* out the allocation a bit.
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*/
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len += sizeof(*kve) * 3;
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freep = kve = malloc(len);
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if (kve == NULL)
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err(-1, "malloc");
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if (sysctl(name, 4, kve, &len, NULL, 0) < 0) {
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warn("sysctl: kern.proc.vmmap: %d", pid);
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free(freep);
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return;
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}
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for (i = 0; i < (len / sizeof(*kve)); i++, kve++) {
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if (kve->kve_structsize != sizeof(*kve))
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errx(-1, "kinfo_vmentry structure mismatch");
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printf("%5d ", pid);
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printf("%*p ", ptrwidth, kve->kve_start);
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printf("%*p ", ptrwidth, kve->kve_end);
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printf("%s", kve->kve_protection & KVME_PROT_READ ? "r" : "-");
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printf("%s", kve->kve_protection & KVME_PROT_WRITE ? "w" : "-");
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printf("%s ", kve->kve_protection & KVME_PROT_EXEC ? "x" : "-");
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printf("%4d ", kve->kve_resident);
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printf("%4d ", kve->kve_private_resident);
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printf("%3d ", kve->kve_ref_count);
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printf("%3d ", kve->kve_shadow_count);
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printf("%-1s", kve->kve_flags & KVME_FLAG_COW ? "C" : "-");
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printf("%-1s ", kve->kve_flags & KVME_FLAG_NEEDS_COPY ? "N" :
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"-");
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switch (kve->kve_type) {
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case KVME_TYPE_NONE:
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str = "--";
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break;
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case KVME_TYPE_DEFAULT:
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str = "df";
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break;
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case KVME_TYPE_VNODE:
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str = "vn";
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break;
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case KVME_TYPE_SWAP:
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str = "sw";
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break;
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case KVME_TYPE_DEVICE:
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str = "dv";
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break;
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case KVME_TYPE_PHYS:
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str = "ph";
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break;
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case KVME_TYPE_DEAD:
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str = "dd";
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break;
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case KVME_TYPE_UNKNOWN:
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default:
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str = "??";
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break;
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}
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printf("%-2s ", str);
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printf("%-s\n", kve->kve_path);
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}
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free(freep);
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}
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