1 /* $NetBSD: netbsd32_core.c,v 1.4 2001/12/10 04:05:23 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Charles D. Cranor and Washington University. 5 * Copyright (c) 1991, 1993 The Regents of the University of California. 6 * Copyright (c) 1988 University of Utah. 7 * 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * the Systems Programming Group of the University of Utah Computer 12 * Science Department. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by Charles D. Cranor, 25 * Washington University, the University of California, Berkeley and 26 * its contributors. 27 * 4. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 * 43 * from: Utah $Hdr: vm_unix.c 1.1 89/11/07$ 44 * @(#)vm_unix.c 8.1 (Berkeley) 6/11/93 45 * from: NetBSD: uvm_unix.c,v 1.25 2001/11/10 07:37:01 lukem Exp 46 */ 47 48 /* 49 * core_netbsd.c: Support for the historic NetBSD core file format. 50 */ 51 52 #include <sys/cdefs.h> 53 __KERNEL_RCSID(0, "$NetBSD: netbsd32_core.c,v 1.4 2001/12/10 04:05:23 thorpej Exp $"); 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/proc.h> 58 #include <sys/vnode.h> 59 #include <sys/core.h> 60 61 #include <uvm/uvm_extern.h> 62 63 #include <compat/netbsd32/netbsd32.h> 64 65 struct coredump_state { 66 struct core32 core; 67 off_t offset; 68 }; 69 70 int coredump_writesegs_netbsd32(struct proc *, struct vnode *, 71 struct ucred *, struct uvm_coredump_state *); 72 73 int 74 coredump_netbsd32(struct proc *p, struct vnode *vp, struct ucred *cred) 75 { 76 struct coredump_state cs; 77 struct vmspace *vm = p->p_vmspace; 78 int error; 79 80 cs.core.c_midmag = 0; 81 strncpy(cs.core.c_name, p->p_comm, MAXCOMLEN); 82 cs.core.c_nseg = 0; 83 cs.core.c_signo = p->p_sigctx.ps_sig; 84 cs.core.c_ucode = p->p_sigctx.ps_code; 85 cs.core.c_cpusize = 0; 86 cs.core.c_tsize = (u_long)ctob(vm->vm_tsize); 87 cs.core.c_dsize = (u_long)ctob(vm->vm_dsize); 88 cs.core.c_ssize = (u_long)round_page(ctob(vm->vm_ssize)); 89 error = cpu_coredump32(p, vp, cred, &cs.core); 90 if (error) 91 return (error); 92 93 #if 0 94 /* 95 * XXX 96 * It would be nice if we at least dumped the signal state (and made it 97 * available at run time to the debugger, as well), but this code 98 * hasn't actually had any effect for a long time, since we don't dump 99 * the user area. For now, it's dead. 100 */ 101 memcpy(&p->p_addr->u_kproc.kp_proc, p, sizeof(struct proc)); 102 fill_eproc(p, &p->p_addr->u_kproc.kp_eproc); 103 #endif 104 105 cs.offset = cs.core.c_hdrsize + cs.core.c_seghdrsize + 106 cs.core.c_cpusize; 107 error = uvm_coredump_walkmap(p, vp, cred, coredump_writesegs_netbsd32, 108 &cs); 109 if (error) 110 return (error); 111 112 /* Now write out the core header. */ 113 error = vn_rdwr(UIO_WRITE, vp, (caddr_t)&cs.core, 114 (int)cs.core.c_hdrsize, (off_t)0, 115 UIO_SYSSPACE, IO_NODELOCKED|IO_UNIT, cred, NULL, p); 116 117 return (error); 118 } 119 120 int 121 coredump_writesegs_netbsd32(struct proc *p, struct vnode *vp, 122 struct ucred *cred, struct uvm_coredump_state *us) 123 { 124 struct coredump_state *cs = us->cookie; 125 struct coreseg32 cseg; 126 int flag, error; 127 128 if (us->flags & UVM_COREDUMP_NODUMP) 129 return (0); 130 131 if (us->flags & UVM_COREDUMP_STACK) 132 flag = CORE_STACK; 133 else 134 flag = CORE_DATA; 135 136 /* 137 * Set up a new core file segment. 138 */ 139 CORE_SETMAGIC(cseg, CORESEGMAGIC, CORE_GETMID(cs->core), flag); 140 cseg.c_addr = us->start; 141 cseg.c_size = us->end - us->start; 142 143 error = vn_rdwr(UIO_WRITE, vp, 144 (caddr_t)&cseg, cs->core.c_seghdrsize, 145 cs->offset, UIO_SYSSPACE, 146 IO_NODELOCKED|IO_UNIT, cred, NULL, p); 147 if (error) 148 return (error); 149 150 cs->offset += cs->core.c_seghdrsize; 151 error = vn_rdwr(UIO_WRITE, vp, 152 (caddr_t) us->start, (int) cseg.c_size, 153 cs->offset, UIO_USERSPACE, 154 IO_NODELOCKED|IO_UNIT, cred, NULL, p); 155 if (error) 156 return (error); 157 158 cs->offset += cseg.c_size; 159 cs->core.c_nseg++; 160 161 return (0); 162 } 163