/*	$NetBSD: core_machdep.c,v 1.8 2022/09/29 06:39:59 skrll Exp $	*/

/*	$OpenBSD: vm_machdep.c,v 1.25 2001/09/19 20:50:56 mickey Exp $	*/

/*
 * Copyright (c) 1999-2004 Michael Shalayeff
 * All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR OR HIS RELATIVES 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 MIND, 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: core_machdep.c,v 1.8 2022/09/29 06:39:59 skrll Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/buf.h>
#include <sys/vnode.h>
#include <sys/ptrace.h>
#include <sys/exec.h>
#include <sys/core.h>
#include <sys/compat_stub.h>

#include <sys/exec_aout.h>

#include <machine/cpufunc.h>
#include <machine/pmap.h>
#include <machine/pcb.h>

#include <uvm/uvm.h>

#include <hppa/hppa/machdep.h>

/*
 * Dump the machine specific header information at the start of a core dump.
 */
int
cpu_coredump(struct lwp *l, struct coredump_iostate *iocookie,
    struct core *core)
{
	struct md_coredump md_core;
	struct coreseg cseg;
	int error;

	if (iocookie == NULL) {
		CORE_SETMAGIC(*core, COREMAGIC, MID_MACHINE, 0);
		core->c_hdrsize = ALIGN(sizeof(*core));
		core->c_seghdrsize = ALIGN(sizeof(cseg));
		core->c_cpusize = sizeof(md_core);
		core->c_nseg++;
		return 0;
	}

	error = process_read_regs(l, &md_core.md_reg);
	if (error)
		return error;

	/* Save floating point registers. */
	error = process_read_fpregs(l, &md_core.md_fpreg, NULL);
	if (error)
		return error;

	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
	cseg.c_addr = 0;
	cseg.c_size = core->c_cpusize;

	MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &cseg,
	    core->c_seghdrsize), ENOSYS, error);
	if (error)
		return error;

	MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &md_core,
	    sizeof(md_core)), ENOSYS, error);

	return error;
}