138 lines
3.3 KiB
C
138 lines
3.3 KiB
C
/*-
|
|
* Copyright (c) 2001 Jake Burkholder.
|
|
* 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/types.h>
|
|
|
|
#include <machine/utrap.h>
|
|
#include <machine/sysarch.h>
|
|
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "fpu_extern.h"
|
|
#include "__sparc_utrap_private.h"
|
|
|
|
static const char *utrap_msg[] = {
|
|
"reserved",
|
|
"instruction access exception",
|
|
"instruction access error",
|
|
"instruction access protection",
|
|
"illtrap instruction",
|
|
"illegal instruction",
|
|
"privileged opcode",
|
|
"floating point disabled",
|
|
"floating point exception ieee 754",
|
|
"floating point exception other",
|
|
"tag overflow",
|
|
"division by zero",
|
|
"data access exception",
|
|
"data access error",
|
|
"data access protection",
|
|
"memory address not aligned",
|
|
"privileged action",
|
|
"async data error",
|
|
"trap instruction 16",
|
|
"trap instruction 17",
|
|
"trap instruction 18",
|
|
"trap instruction 19",
|
|
"trap instruction 20",
|
|
"trap instruction 21",
|
|
"trap instruction 22",
|
|
"trap instruction 23",
|
|
"trap instruction 24",
|
|
"trap instruction 25",
|
|
"trap instruction 26",
|
|
"trap instruction 27",
|
|
"trap instruction 28",
|
|
"trap instruction 29",
|
|
"trap instruction 30",
|
|
"trap instruction 31",
|
|
};
|
|
|
|
void
|
|
__sparc_utrap(struct utrapframe *uf)
|
|
{
|
|
int sig;
|
|
|
|
switch (uf->uf_type) {
|
|
case UT_FP_EXCEPTION_IEEE_754:
|
|
case UT_FP_EXCEPTION_OTHER:
|
|
sig = __fpu_exception(uf);
|
|
break;
|
|
case UT_ILLEGAL_INSTRUCTION:
|
|
sig = __emul_insn(uf);
|
|
break;
|
|
case UT_MEM_ADDRESS_NOT_ALIGNED:
|
|
sig = __unaligned_fixup(uf);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (sig) {
|
|
__utrap_write("__sparc_utrap: fatal ");
|
|
__utrap_write(utrap_msg[uf->uf_type]);
|
|
__utrap_write("\n");
|
|
__utrap_kill_self(sig);
|
|
}
|
|
UF_DONE(uf);
|
|
}
|
|
|
|
void
|
|
__utrap_write(const char *str)
|
|
{
|
|
int berrno;
|
|
|
|
berrno = errno;
|
|
__sys_write(STDERR_FILENO, str, strlen(str));
|
|
errno = berrno;
|
|
}
|
|
|
|
void
|
|
__utrap_kill_self(sig)
|
|
{
|
|
int berrno;
|
|
|
|
berrno = errno;
|
|
__sys_kill(__sys_getpid(), sig);
|
|
errno = berrno;
|
|
}
|
|
|
|
void
|
|
__utrap_panic(const char *msg)
|
|
{
|
|
|
|
__utrap_write(msg);
|
|
__utrap_write("\n");
|
|
__utrap_kill_self(SIGKILL);
|
|
}
|