1 /* $NetBSD: core_netbsd.c,v 1.27 2026/01/03 23:57:09 riastradh 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. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: Utah $Hdr: vm_unix.c 1.1 89/11/07$ 39 * @(#)vm_unix.c 8.1 (Berkeley) 6/11/93 40 * from: NetBSD: uvm_unix.c,v 1.25 2001/11/10 07:37:01 lukem Exp 41 */ 42 43 /* 44 * core_netbsd.c: Support for the historic NetBSD core file format. 45 */ 46 47 #include <sys/cdefs.h> 48 __KERNEL_RCSID(0, "$NetBSD: core_netbsd.c,v 1.27 2026/01/03 23:57:09 riastradh Exp $"); 49 50 #include <sys/param.h> 51 #include <sys/types.h> 52 53 #include <sys/compat_stub.h> 54 #include <sys/core.h> 55 #include <sys/exec.h> 56 #include <sys/module.h> 57 #include <sys/proc.h> 58 #include <sys/sdt.h> 59 #include <sys/signalvar.h> 60 #include <sys/systm.h> 61 #include <sys/vnode.h> 62 63 #include <uvm/uvm_extern.h> 64 65 #ifndef CORENAME 66 #define CORENAME(x) x 67 #endif 68 #ifdef COREINC 69 #include COREINC 70 #endif 71 72 struct coredump_state { 73 struct coredump_iostate *iocookie; 74 struct CORENAME(core) core; 75 }; 76 77 static int CORENAME(coredump_writesegs_netbsd)(struct uvm_coredump_state *); 78 79 int 80 CORENAME(real_coredump_netbsd)(struct lwp *l, struct coredump_iostate *iocookie) 81 { 82 struct coredump_state cs; 83 struct proc *p = l->l_proc; 84 struct vmspace *vm = p->p_vmspace; 85 int error; 86 87 cs.iocookie = iocookie; 88 cs.core.c_midmag = 0; 89 strncpy(cs.core.c_name, p->p_comm, MAXCOMLEN); 90 cs.core.c_nseg = 0; 91 cs.core.c_signo = p->p_sigctx.ps_info._signo; 92 cs.core.c_ucode = p->p_sigctx.ps_info._code; 93 cs.core.c_cpusize = 0; 94 cs.core.c_tsize = (u_long)ctob(vm->vm_tsize); 95 cs.core.c_dsize = (u_long)ctob(vm->vm_dsize); 96 cs.core.c_ssize = (u_long)round_page(ctob(vm->vm_ssize)); 97 98 error = CORENAME(cpu_coredump)(l, NULL, &cs.core); 99 if (error) 100 return (error); 101 MODULE_HOOK_CALL(uvm_coredump_count_segs_hook, (p), 0, cs.core.c_nseg); 102 103 /* First write out the core header. */ 104 MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &cs.core, 105 cs.core.c_hdrsize), SET_ERROR(ENOSYS), error); 106 if (error) 107 return (error); 108 109 /* Then the CPU specific stuff */ 110 error = CORENAME(cpu_coredump)(l, iocookie, &cs.core); 111 if (error) 112 return (error); 113 114 /* Finally, the address space dump */ 115 MODULE_HOOK_CALL(uvm_coredump_walkmap_hook, 116 (p, CORENAME(coredump_writesegs_netbsd), &cs), 117 SET_ERROR(ENOSYS), 118 error); 119 120 return error; 121 } 122 123 static int 124 CORENAME(coredump_writesegs_netbsd)(struct uvm_coredump_state *us) 125 { 126 struct coredump_state *cs = us->cookie; 127 struct CORENAME(coreseg) cseg; 128 int flag, error; 129 130 if (us->flags & UVM_COREDUMP_STACK) 131 flag = CORE_STACK; 132 else 133 flag = CORE_DATA; 134 135 /* 136 * Set up a new core file segment. 137 */ 138 CORE_SETMAGIC(cseg, CORESEGMAGIC, CORE_GETMID(cs->core), flag); 139 cseg.c_addr = us->start; 140 141 if (us->start == us->realend) 142 /* Not really wanted, but counted... */ 143 cseg.c_size = 0; 144 else 145 cseg.c_size = us->end - us->start; 146 147 MODULE_HOOK_CALL(coredump_write_hook, (cs->iocookie, UIO_SYSSPACE, 148 &cseg, cs->core.c_seghdrsize), SET_ERROR(ENOSYS), error); 149 if (error) 150 return (error); 151 152 MODULE_HOOK_CALL(coredump_write_hook, (cs->iocookie, UIO_USERSPACE, 153 (void *)(vaddr_t)us->start, cseg.c_size), 154 SET_ERROR(ENOSYS), 155 error); 156 157 return error; 158 } 159
Indexes created Sat Feb 21 01:20:28 UTC 2026