188794Sjake/*- 288794Sjake * Copyright (c) 2001 Jake Burkholder. 388794Sjake * All rights reserved. 488794Sjake * 588794Sjake * Redistribution and use in source and binary forms, with or without 688794Sjake * modification, are permitted provided that the following conditions 788794Sjake * are met: 888794Sjake * 1. Redistributions of source code must retain the above copyright 988794Sjake * notice, this list of conditions and the following disclaimer. 1088794Sjake * 2. Redistributions in binary form must reproduce the above copyright 1188794Sjake * notice, this list of conditions and the following disclaimer in the 1288794Sjake * documentation and/or other materials provided with the distribution. 1388794Sjake * 1488794Sjake * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1588794Sjake * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1688794Sjake * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1788794Sjake * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1888794Sjake * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1988794Sjake * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2088794Sjake * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2188794Sjake * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2288794Sjake * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2388794Sjake * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2488794Sjake * SUCH DAMAGE. 2588794Sjake */ 2688794Sjake 2788794Sjake#include <sys/cdefs.h> 2888794Sjake__FBSDID("$FreeBSD$"); 2988794Sjake 3088794Sjake#include <sys/types.h> 3188794Sjake 3288794Sjake#include <machine/utrap.h> 3388794Sjake#include <machine/sysarch.h> 3488794Sjake 3595587Sjake#include <errno.h> 3695587Sjake#include <signal.h> 3788794Sjake#include <stdio.h> 3888794Sjake#include <stdlib.h> 39124182Snectar#include <string.h> 4095587Sjake#include <unistd.h> 4188794Sjake 42124182Snectar#include "fpu_extern.h" 4388794Sjake#include "__sparc_utrap_private.h" 4488794Sjake 45124722Snectarextern ssize_t __sys_write(int, const void *, size_t); 46124722Snectarextern int __sys_kill(pid_t, int); 47124722Snectarextern pid_t __sys_getpid(void); 48124722Snectar 4988794Sjakestatic const char *utrap_msg[] = { 5088794Sjake "reserved", 5188794Sjake "instruction access exception", 5288794Sjake "instruction access error", 5388794Sjake "instruction access protection", 5488794Sjake "illtrap instruction", 5588794Sjake "illegal instruction", 5688794Sjake "privileged opcode", 5788794Sjake "floating point disabled", 5888794Sjake "floating point exception ieee 754", 5988794Sjake "floating point exception other", 6088794Sjake "tag overflow", 6188794Sjake "division by zero", 6288794Sjake "data access exception", 6388794Sjake "data access error", 6488794Sjake "data access protection", 6588794Sjake "memory address not aligned", 6688794Sjake "privileged action", 6788794Sjake "async data error", 6888794Sjake "trap instruction 16", 6988794Sjake "trap instruction 17", 7088794Sjake "trap instruction 18", 7188794Sjake "trap instruction 19", 7288794Sjake "trap instruction 20", 7388794Sjake "trap instruction 21", 7488794Sjake "trap instruction 22", 7588794Sjake "trap instruction 23", 7688794Sjake "trap instruction 24", 7788794Sjake "trap instruction 25", 7888794Sjake "trap instruction 26", 7988794Sjake "trap instruction 27", 8088794Sjake "trap instruction 28", 8188794Sjake "trap instruction 29", 8288794Sjake "trap instruction 30", 8388794Sjake "trap instruction 31", 8488794Sjake}; 8588794Sjake 8688794Sjakevoid 8788794Sjake__sparc_utrap(struct utrapframe *uf) 8888794Sjake{ 8995587Sjake int sig; 9088794Sjake 9188794Sjake switch (uf->uf_type) { 9288794Sjake case UT_FP_EXCEPTION_IEEE_754: 9388794Sjake case UT_FP_EXCEPTION_OTHER: 9495587Sjake sig = __fpu_exception(uf); 9595587Sjake break; 9688794Sjake case UT_ILLEGAL_INSTRUCTION: 9795587Sjake sig = __emul_insn(uf); 9895587Sjake break; 9988794Sjake case UT_MEM_ADDRESS_NOT_ALIGNED: 10096492Sjake sig = __unaligned_fixup(uf); 10188794Sjake break; 10288794Sjake default: 10388794Sjake break; 10488794Sjake } 10595587Sjake if (sig) { 10695587Sjake __utrap_write("__sparc_utrap: fatal "); 10795587Sjake __utrap_write(utrap_msg[uf->uf_type]); 10895587Sjake __utrap_write("\n"); 10995587Sjake __utrap_kill_self(sig); 11095587Sjake } 11195587Sjake UF_DONE(uf); 11288794Sjake} 11395587Sjake 11495587Sjakevoid 11595587Sjake__utrap_write(const char *str) 11695587Sjake{ 11795587Sjake int berrno; 11895587Sjake 11995587Sjake berrno = errno; 12095587Sjake __sys_write(STDERR_FILENO, str, strlen(str)); 12195587Sjake errno = berrno; 12295587Sjake} 12395587Sjake 12495587Sjakevoid 125188031Srdivacky__utrap_kill_self(int sig) 12695587Sjake{ 12795587Sjake int berrno; 12895587Sjake 12995587Sjake berrno = errno; 13095587Sjake __sys_kill(__sys_getpid(), sig); 13195587Sjake errno = berrno; 13295587Sjake} 13395587Sjake 13495587Sjakevoid 13595587Sjake__utrap_panic(const char *msg) 13695587Sjake{ 13795587Sjake 13895587Sjake __utrap_write(msg); 13995587Sjake __utrap_write("\n"); 14095587Sjake __utrap_kill_self(SIGKILL); 14195587Sjake} 142