Home | History | Annotate | Line # | Download | only in vax 
      1 /*	$NetBSD: core_machdep.c,v 1.9 2024/09/08 09:36:50 rillig Exp $	     */
      2 
      3 /*
      4  * Copyright (c) 1994 Ludd, University of Lule}, Sweden.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: core_machdep.c,v 1.9 2024/09/08 09:36:50 rillig Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/systm.h>
     33 #include <sys/proc.h>
     34 #include <sys/exec.h>
     35 #include <sys/core.h>
     36 #include <sys/compat_stub.h>
     37 
     38 #include <sys/exec_aout.h>
     39 
     40 #include <machine/pcb.h>
     41 #include <machine/frame.h>
     42 
     43 /*
     44  * Dump the machine specific header information at the start of a core dump.
     45  * First put all regs in PCB for debugging purposes. This is not a good
     46  * way to do this, but good for my purposes so far.
     47  */
     48 int
     49 cpu_coredump(struct lwp *l, struct coredump_iostate *iocookie,
     50     struct core *chdr)
     51 {
     52 	struct md_coredump md_core;
     53 	struct coreseg cseg;
     54 	int error;
     55 
     56 	if (iocookie == NULL) {
     57 		CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
     58 		chdr->c_hdrsize = sizeof(struct core);
     59 		chdr->c_seghdrsize = sizeof(struct coreseg);
     60 		chdr->c_cpusize = sizeof(struct md_coredump);
     61 		chdr->c_nseg++;
     62 		return 0;
     63 	}
     64 
     65 	md_core.md_tf = *l->l_md.md_utf;	/*XXX*/
     66 
     67 	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
     68 	cseg.c_addr = 0;
     69 	cseg.c_size = chdr->c_cpusize;
     70 
     71 	MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &cseg,
     72 	    chdr->c_seghdrsize), ENOSYS, error);
     73 	if (error)
     74 		return error;
     75 
     76 	MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &md_core,
     77 	    sizeof(md_core)), ENOSYS, error);
     78 
     79 	return error;
     80 }
     81