1 /* Simulator signal support
2 Copyright (C) 1997, 2007, 2008, 2009, 2010, 2011
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support
5
6 This file is part of the GNU Simulators.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20
21 #include <signal.h>
22 #include "sim-main.h"
23
24 /* Convert SIM_SIGFOO to SIGFOO.
25 What to do when the host doesn't have SIGFOO is handled on a case by case
26 basis. Generally, in the case of passing a value back to gdb, we want gdb
27 to not think the process has died (so it can be debugged at the point of
28 failure). */
29
30 #ifdef _WIN32
31 #ifndef SIGTRAP
32 #define SIGTRAP 5
33 #endif
34 #ifndef SIGBUS
35 #define SIGBUS 10
36 #endif
37 #ifndef SIGQUIT
38 #define SIGQUIT 3
39 #endif
40 #endif
41
42 int
sim_signal_to_host(SIM_DESC sd,SIM_SIGNAL sig)43 sim_signal_to_host (SIM_DESC sd, SIM_SIGNAL sig)
44 {
45 switch (sig)
46 {
47 case SIM_SIGINT :
48 return SIGINT;
49
50 case SIM_SIGABRT :
51 return SIGABRT;
52
53 case SIM_SIGILL :
54 #ifdef SIGILL
55 return SIGILL;
56 #else
57 return SIGSEGV;
58 #endif
59
60 case SIM_SIGTRAP :
61 return SIGTRAP;
62
63 case SIM_SIGBUS :
64 #ifdef SIGBUS
65 return SIGBUS;
66 #else
67 return SIGSEGV;
68 #endif
69
70 case SIM_SIGSEGV :
71 return SIGSEGV;
72
73 case SIM_SIGXCPU :
74 #ifdef SIGXCPU
75 return SIGXCPU;
76 #endif
77 break;
78
79 case SIM_SIGFPE:
80 #ifdef SIGFPE
81 return SIGFPE;
82 #endif
83 break;
84
85 case SIM_SIGNONE:
86 return 0;
87 break;
88 }
89
90 sim_io_eprintf (sd, "sim_signal_to_host: unknown signal: %d\n", sig);
91 #ifdef SIGHUP
92 return SIGHUP; /* FIXME: Suggestions? */
93 #else
94 return 1;
95 #endif
96 }
97
98 enum target_signal
sim_signal_to_target(SIM_DESC sd,SIM_SIGNAL sig)99 sim_signal_to_target (SIM_DESC sd, SIM_SIGNAL sig)
100 {
101 switch (sig)
102 {
103 case SIM_SIGINT :
104 return TARGET_SIGNAL_INT;
105
106 case SIM_SIGABRT :
107 return TARGET_SIGNAL_ABRT;
108
109 case SIM_SIGILL :
110 return TARGET_SIGNAL_ILL;
111
112 case SIM_SIGTRAP :
113 return TARGET_SIGNAL_TRAP;
114
115 case SIM_SIGBUS :
116 return TARGET_SIGNAL_BUS;
117
118 case SIM_SIGSEGV :
119 return TARGET_SIGNAL_SEGV;
120
121 case SIM_SIGXCPU :
122 return TARGET_SIGNAL_XCPU;
123
124 case SIM_SIGFPE:
125 return TARGET_SIGNAL_FPE;
126 break;
127
128 case SIM_SIGNONE:
129 return TARGET_SIGNAL_0;
130 break;
131 }
132
133 sim_io_eprintf (sd, "sim_signal_to_host: unknown signal: %d\n", sig);
134 return TARGET_SIGNAL_HUP;
135 }
136