LKM friendly: move uvm_coredump32() here
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mrg
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/* $NetBSD: netbsd32_uvm_unix.c,v 1.1 2001/06/06 21:24:39 mrg Exp $ */
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/*
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* Copyright (c) 1997 Charles D. Cranor and Washington University.
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* Copyright (c) 1991, 1993 The Regents of the University of California.
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* Copyright (c) 1988 University of Utah.
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*
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles D. Cranor,
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* Washington University, the University of California, Berkeley and
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* its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* from: Utah $Hdr: vm_unix.c 1.1 89/11/07$
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* @(#)vm_unix.c 8.1 (Berkeley) 6/11/93
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* from: Id: uvm_unix.c,v 1.1.2.2 1997/08/25 18:52:30 chuck Exp
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* from: NetBSD: uvm_unix.c,v 1.22 2001/05/25 04:06:18 chs Exp
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <sys/vnode.h>
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#include <sys/core.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#include <uvm/uvm.h>
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/*
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* uvm_coredump32: dump 32-bit core!
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*/
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int
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uvm_coredump32(p, vp, cred, chdr)
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struct proc *p;
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struct vnode *vp;
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struct ucred *cred;
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struct core32 *chdr;
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{
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struct vmspace *vm = p->p_vmspace;
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vm_map_t map = &vm->vm_map;
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vm_map_entry_t entry;
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vaddr_t start, end, maxstack;
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struct coreseg32 cseg;
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off_t offset;
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int flag, error = 0;
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offset = chdr->c_hdrsize + chdr->c_seghdrsize + chdr->c_cpusize;
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maxstack = trunc_page(USRSTACK - ctob(vm->vm_ssize));
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for (entry = map->header.next; entry != &map->header;
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entry = entry->next) {
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/* should never happen for a user process */
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if (UVM_ET_ISSUBMAP(entry)) {
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panic("uvm_coredump: user process with submap?");
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}
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if (!(entry->protection & VM_PROT_WRITE))
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continue;
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start = entry->start;
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end = entry->end;
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if (start >= VM_MAXUSER_ADDRESS)
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continue;
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if (end > VM_MAXUSER_ADDRESS)
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end = VM_MAXUSER_ADDRESS;
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if (start >= (vaddr_t)vm->vm_maxsaddr) {
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if (end <= maxstack)
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continue;
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if (start < maxstack)
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start = maxstack;
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flag = CORE_STACK;
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} else
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flag = CORE_DATA;
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/*
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* Set up a new core file segment.
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*/
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CORE_SETMAGIC(cseg, CORESEGMAGIC, CORE_GETMID(*chdr), flag);
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cseg.c_addr = start;
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cseg.c_size = end - start;
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error = vn_rdwr(UIO_WRITE, vp,
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(caddr_t)&cseg, chdr->c_seghdrsize,
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offset, UIO_SYSSPACE,
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IO_NODELOCKED|IO_UNIT, cred, NULL, p);
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if (error)
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break;
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offset += chdr->c_seghdrsize;
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error = vn_rdwr(UIO_WRITE, vp,
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(caddr_t)(u_long)cseg.c_addr, (int)cseg.c_size,
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offset, UIO_USERSPACE,
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IO_NODELOCKED|IO_UNIT, cred, NULL, p);
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if (error)
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break;
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offset += cseg.c_size;
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chdr->c_nseg++;
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}
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return (error);
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}
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