1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/termio.h>
#include <fcode/private.h>
#include <fcode/log.h>
static fcode_env_t *saved_envp;
static struct termio saved_termio;
static void
process_signal(int sig, siginfo_t *sip, void *addr)
{
/*
* Format appropriate error message, want fault addr if Bus Error
* or Segmentation Violation.
*/
switch (sig) {
case SIGSEGV:
case SIGBUS:
case SIGILL:
case SIGFPE:
forth_abort(saved_envp, "%s: Fault Addr: 0x%08x",
strsignal(sig), sip->si_addr);
/* FALLTHROUGH */
case SIGQUIT:
(void) ioctl(fileno(stdin), TCSETA, &saved_termio);
log_message(MSG_FATAL, "SIGQUIT\n");
abort();
case SIGINT:
(void) ioctl(fileno(stdin), TCSETA, &saved_termio);
break;
}
forth_abort(saved_envp, strsignal(sig));
}
void
install_handlers(fcode_env_t *env)
{
struct sigaction sa;
saved_envp = env;
(void) ioctl(fileno(stdin), TCGETA, &saved_termio);
(void) sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO|SA_NODEFER;
sa.sa_handler = 0;
sa.sa_sigaction = process_signal;
(void) sigaction(SIGINT, &sa, NULL);
(void) sigaction(SIGQUIT, &sa, NULL);
(void) sigaction(SIGSEGV, &sa, NULL);
(void) sigaction(SIGBUS, &sa, NULL);
(void) sigaction(SIGUSR1, &sa, NULL);
(void) sigaction(SIGFPE, &sa, NULL);
}
|
