freebsd-dev/sys/compat/freebsd32/freebsd32_abort2.c
Brooks Davis e02f64d9b8 freebsd32: add real abort2
Previously, the code would copy twice as many pointers as specified
and print pairs of them a single 64-bit pointer.

abort2 doesn't return so make the return type void

freebsd32_abort2 is in it's own file with a 2-clause BSD license
based on a discussion with Wojciech many years ago.

Reviewed by:	kevans
2021-11-17 20:12:25 +00:00

70 lines
2.2 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2005 Wojciech A. Koszek
* 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 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/sbuf.h>
#include <sys/syscallsubr.h>
#include <sys/syslog.h>
#include <compat/freebsd32/freebsd32_proto.h>
int
freebsd32_abort2(struct thread *td, struct freebsd32_abort2_args *uap)
{
void *uargs[16];
void *uargsp;
uint32_t *uargsptr;
uint32_t ptr;
int i, nargs;
nargs = uap->nargs;
if (nargs < 0 || nargs > nitems(uargs))
nargs = -1;
uargsp = NULL;
if (nargs > 0) {
if (uap->args != NULL) {
uargsptr = uap->args;
for (i = 0; i < nargs; i++) {
if (fueword32(uargsptr + i, &ptr) != 0) {
nargs = -1;
break;
} else
uargs[i] = (void *)(uintptr_t)ptr;
}
if (nargs > 0)
uargsp = &uargs;
} else
nargs = -1;
}
return (kern_abort2(td, uap->why, nargs, uargsp));
}