FreeBSD/Linux Kernel Cross Reference
sys/kern/core_netbsd.c

     /*      $NetBSD: core_netbsd.c,v 1.24 2019/11/20 19:37:53 pgoyette Exp $        */
     
     /*
      * Copyright (c) 1997 Charles D. Cranor and Washington University.
      * Copyright (c) 1991, 1993 The Regents of the University of California.
      * Copyright (c) 1988 University of Utah.
      *
      * All rights reserved.
      *
     * This code is derived from software contributed to Berkeley by
     * the Systems Programming Group of the University of Utah Computer
     * Science Department.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * from: Utah $Hdr: vm_unix.c 1.1 89/11/07$
     *      @(#)vm_unix.c   8.1 (Berkeley) 6/11/93
     * from: NetBSD: uvm_unix.c,v 1.25 2001/11/10 07:37:01 lukem Exp
     */
    
    /*
     * core_netbsd.c: Support for the historic NetBSD core file format.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: core_netbsd.c,v 1.24 2019/11/20 19:37:53 pgoyette Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/exec.h>
    #include <sys/proc.h>
    #include <sys/vnode.h>
    #include <sys/core.h>
    #include <sys/module.h>
    #include <sys/compat_stub.h>
    #include <sys/signalvar.h>
    
    #include <uvm/uvm_extern.h>
    
    #ifndef CORENAME
    #define CORENAME(x)     x
    #endif
    #ifdef COREINC
    #include COREINC
    #endif
    
    struct coredump_state {
            struct coredump_iostate *iocookie;
            struct CORENAME(core) core;
    };
    
    static int      CORENAME(coredump_writesegs_netbsd)(struct uvm_coredump_state *);
    
    int
    CORENAME(real_coredump_netbsd)(struct lwp *l, struct coredump_iostate *iocookie)
    {
            struct coredump_state cs;
            struct proc *p = l->l_proc;
            struct vmspace *vm = p->p_vmspace;
            int error;
    
            cs.iocookie = iocookie;
            cs.core.c_midmag = 0;
            strncpy(cs.core.c_name, p->p_comm, MAXCOMLEN);
            cs.core.c_nseg = 0;
            cs.core.c_signo = p->p_sigctx.ps_info._signo;
            cs.core.c_ucode = p->p_sigctx.ps_info._code;
            cs.core.c_cpusize = 0;
            cs.core.c_tsize = (u_long)ctob(vm->vm_tsize);
            cs.core.c_dsize = (u_long)ctob(vm->vm_dsize);
            cs.core.c_ssize = (u_long)round_page(ctob(vm->vm_ssize));
    
            error = CORENAME(cpu_coredump)(l, NULL, &cs.core);
            if (error)
                    return (error);
            MODULE_HOOK_CALL(uvm_coredump_count_segs_hook, (p), 0, cs.core.c_nseg);
    
           /* First write out the core header. */
           MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &cs.core,
               cs.core.c_hdrsize), ENOSYS, error);
           if (error)
                   return (error);
   
           /* Then the CPU specific stuff */
           error = CORENAME(cpu_coredump)(l, iocookie, &cs.core);
           if (error)
                   return (error);
   
           /* Finally, the address space dump */
           MODULE_HOOK_CALL(uvm_coredump_walkmap_hook,
               (p, CORENAME(coredump_writesegs_netbsd), &cs), ENOSYS, error);
   
           return error;
   }
   
   static int
   CORENAME(coredump_writesegs_netbsd)(struct uvm_coredump_state *us)
   {
           struct coredump_state *cs = us->cookie;
           struct CORENAME(coreseg) cseg;
           int flag, error;
   
           if (us->flags & UVM_COREDUMP_STACK)
                   flag = CORE_STACK;
           else
                   flag = CORE_DATA;
   
           /*
            * Set up a new core file segment.
            */
           CORE_SETMAGIC(cseg, CORESEGMAGIC, CORE_GETMID(cs->core), flag);
           cseg.c_addr = us->start;
   
           if (us->start == us->realend)
                   /* Not really wanted, but counted... */
                   cseg.c_size = 0;
           else
                   cseg.c_size = us->end - us->start;
   
           MODULE_HOOK_CALL(coredump_write_hook, (cs->iocookie, UIO_SYSSPACE,
               &cseg, cs->core.c_seghdrsize), ENOSYS, error);
           if (error)
                   return (error);
   
           MODULE_HOOK_CALL(coredump_write_hook, (cs->iocookie, UIO_USERSPACE,
               (void *)(vaddr_t)us->start, cseg.c_size), ENOSYS, error);
   
           return error;
   }

Cache object: 90b660ca283a1ec0f2bcdcd8adfe77dc