1139776Simp/*- 21541Srgrimes * Copyright (c) 1993 Jan-Simon Pendry 31541Srgrimes * Copyright (c) 1993 Sean Eric Fagan 41541Srgrimes * Copyright (c) 1993 51541Srgrimes * The Regents of the University of California. All rights reserved. 61541Srgrimes * 71541Srgrimes * This code is derived from software contributed to Berkeley by 81541Srgrimes * Jan-Simon Pendry and Sean Eric Fagan. 91541Srgrimes * 101541Srgrimes * Redistribution and use in source and binary forms, with or without 111541Srgrimes * modification, are permitted provided that the following conditions 121541Srgrimes * are met: 131541Srgrimes * 1. Redistributions of source code must retain the above copyright 141541Srgrimes * notice, this list of conditions and the following disclaimer. 151541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 161541Srgrimes * notice, this list of conditions and the following disclaimer in the 171541Srgrimes * documentation and/or other materials provided with the distribution. 181541Srgrimes * 4. Neither the name of the University nor the names of its contributors 191541Srgrimes * may be used to endorse or promote products derived from this software 201541Srgrimes * without specific prior written permission. 211541Srgrimes * 221541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 231541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 241541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 251541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 261541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 271541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 281541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 291541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 301541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 311541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 321541Srgrimes * SUCH DAMAGE. 331541Srgrimes * 3422521Sdyson * @(#)procfs_mem.c 8.5 (Berkeley) 6/15/94 351541Srgrimes * 3650477Speter * $FreeBSD$ 371541Srgrimes */ 381541Srgrimes 391541Srgrimes#include <sys/param.h> 4076166Smarkm#include <sys/lock.h> 4176827Salfred#include <sys/mutex.h> 421541Srgrimes#include <sys/proc.h> 4376166Smarkm#include <sys/ptrace.h> 4495210Sbde#include <sys/systm.h> 4587321Sdes#include <sys/uio.h> 4676166Smarkm 4787321Sdes#include <fs/pseudofs/pseudofs.h> 4877031Sru#include <fs/procfs/procfs.h> 4976166Smarkm 501541Srgrimes/* 511541Srgrimes * Copy data in and out of the target process. 521541Srgrimes * We do this by mapping the process's page into 531541Srgrimes * the kernel and then doing a uiomove direct 541541Srgrimes * from the kernel address space. 551541Srgrimes */ 561541Srgrimesint 5787321Sdesprocfs_doprocmem(PFS_FILL_ARGS) 581541Srgrimes{ 5981107Srwatson int error; 601541Srgrimes 611541Srgrimes if (uio->uio_resid == 0) 621541Srgrimes return (0); 631541Srgrimes 6494623Sjhb PROC_LOCK(p); 6596886Sjhb error = p_candebug(td, p); 6694623Sjhb PROC_UNLOCK(p); 6794623Sjhb if (error == 0) 6894623Sjhb error = proc_rwmem(p, uio); 6928086Ssef 7087321Sdes return (error); 711541Srgrimes} 72