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4f8d4a38 DD |
1 | /* main.c --- main function for stand-alone RX simulator. |
2 | ||
7b6bb8da JB |
3 | Copyright (C) 2005, 2007, 2008, 2009, 2010, 2011 |
4 | Free Software Foundation, Inc. | |
4f8d4a38 DD |
5 | Contributed by Red Hat, Inc. |
6 | ||
7 | This file is part of the GNU simulators. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | ||
2388a152 | 23 | #include "config.h" |
4f8d4a38 DD |
24 | #include <stdio.h> |
25 | #include <string.h> | |
2388a152 | 26 | #ifdef HAVE_STDLIB_H |
4f8d4a38 | 27 | #include <stdlib.h> |
2388a152 MM |
28 | #endif |
29 | #ifdef HAVE_UNISTD_H | |
4f8d4a38 | 30 | #include <unistd.h> |
2388a152 | 31 | #endif |
4f8d4a38 DD |
32 | #include <assert.h> |
33 | #include <setjmp.h> | |
34 | #include <signal.h> | |
2388a152 MM |
35 | #ifdef HAVE_GETOPT_H |
36 | #include <getopt.h> | |
37 | #endif | |
4f8d4a38 DD |
38 | |
39 | #include "bfd.h" | |
40 | ||
41 | #include "cpu.h" | |
42 | #include "mem.h" | |
43 | #include "misc.h" | |
44 | #include "load.h" | |
45 | #include "trace.h" | |
46 | #include "err.h" | |
47 | ||
48 | static int disassemble = 0; | |
49 | ||
50 | /* This must be higher than any other option index. */ | |
51 | #define OPT_ACT 400 | |
52 | ||
53 | #define ACT(E,A) (OPT_ACT + SIM_ERR_##E * SIM_ERRACTION_NUM_ACTIONS + SIM_ERRACTION_##A) | |
54 | ||
55 | static struct option sim_options[] = | |
56 | { | |
57 | { "end-sim-args", 0, NULL, 'E' }, | |
58 | { "exit-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,EXIT) }, | |
59 | { "warn-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,WARN) }, | |
60 | { "ignore-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,IGNORE) }, | |
61 | { "exit-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,EXIT) }, | |
62 | { "warn-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,WARN) }, | |
63 | { "ignore-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,IGNORE) }, | |
64 | { "exit-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,EXIT) }, | |
65 | { "warn-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,WARN) }, | |
66 | { "ignore-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,IGNORE) }, | |
67 | { "exit-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,EXIT) }, | |
68 | { "warn-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,WARN) }, | |
69 | { "ignore-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,IGNORE) }, | |
70 | { 0, 0, 0, 0 } | |
71 | }; | |
72 | ||
73 | static void | |
74 | done (int exit_code) | |
75 | { | |
76 | if (verbose) | |
77 | { | |
78 | stack_heap_stats (); | |
79 | mem_usage_stats (); | |
80 | /* Only use comma separated numbers when being very verbose. | |
81 | Comma separated numbers are hard to parse in awk scripts. */ | |
82 | if (verbose > 1) | |
83 | printf ("insns: %14s\n", comma (rx_cycles)); | |
84 | else | |
85 | printf ("insns: %u\n", rx_cycles); | |
93378652 DD |
86 | |
87 | pipeline_stats (); | |
4f8d4a38 DD |
88 | } |
89 | exit (exit_code); | |
90 | } | |
91 | ||
92 | int | |
93 | main (int argc, char **argv) | |
94 | { | |
95 | int o; | |
96 | int save_trace; | |
97 | bfd *prog; | |
f9c7014e | 98 | int rc; |
4f8d4a38 DD |
99 | |
100 | /* By default, we exit when an execution error occurs. */ | |
101 | execution_error_init_standalone (); | |
102 | ||
103 | while ((o = getopt_long (argc, argv, "tvdeEwi", sim_options, NULL)) != -1) | |
104 | { | |
105 | if (o == 'E') | |
106 | /* Stop processing the command line. This is so that any remaining | |
107 | words on the command line that look like arguments will be passed | |
108 | on to the program being simulated. */ | |
109 | break; | |
110 | ||
111 | if (o >= OPT_ACT) | |
112 | { | |
113 | int e, a; | |
114 | ||
115 | o -= OPT_ACT; | |
116 | e = o / SIM_ERRACTION_NUM_ACTIONS; | |
117 | a = o % SIM_ERRACTION_NUM_ACTIONS; | |
118 | execution_error_set_action (e, a); | |
119 | } | |
120 | else switch (o) | |
121 | { | |
122 | case 't': | |
123 | trace++; | |
124 | break; | |
125 | case 'v': | |
126 | verbose++; | |
127 | break; | |
128 | case 'd': | |
129 | disassemble++; | |
130 | break; | |
131 | case 'e': | |
132 | execution_error_init_standalone (); | |
133 | break; | |
134 | case 'w': | |
135 | execution_error_warn_all (); | |
136 | break; | |
137 | case 'i': | |
138 | execution_error_ignore_all (); | |
139 | break; | |
140 | case '?': | |
141 | { | |
142 | int i; | |
143 | fprintf (stderr, | |
144 | "usage: run [options] program [arguments]\n"); | |
145 | fprintf (stderr, | |
146 | "\t-v\t- increase verbosity.\n" | |
147 | "\t-t\t- trace.\n" | |
148 | "\t-d\t- disassemble.\n" | |
149 | "\t-E\t- stop processing sim args\n" | |
150 | "\t-e\t- exit on all execution errors.\n" | |
151 | "\t-w\t- warn (do not exit) on all execution errors.\n" | |
152 | "\t-i\t- ignore all execution errors.\n"); | |
153 | for (i=0; sim_options[i].name; i++) | |
154 | fprintf (stderr, "\t--%s\n", sim_options[i].name); | |
155 | exit (1); | |
156 | } | |
157 | } | |
158 | } | |
159 | ||
160 | prog = bfd_openr (argv[optind], 0); | |
161 | if (!prog) | |
162 | { | |
163 | fprintf (stderr, "Can't read %s\n", argv[optind]); | |
164 | exit (1); | |
165 | } | |
166 | ||
167 | if (!bfd_check_format (prog, bfd_object)) | |
168 | { | |
169 | fprintf (stderr, "%s not a rx program\n", argv[optind]); | |
170 | exit (1); | |
171 | } | |
172 | ||
173 | init_regs (); | |
174 | ||
175 | rx_in_gdb = 0; | |
176 | save_trace = trace; | |
177 | trace = 0; | |
178 | rx_load (prog); | |
179 | trace = save_trace; | |
180 | ||
181 | sim_disasm_init (prog); | |
182 | ||
f9c7014e | 183 | enable_counting = verbose; |
4f8d4a38 | 184 | |
f9c7014e | 185 | rc = setjmp (decode_jmp_buf); |
4f8d4a38 | 186 | |
f9c7014e DD |
187 | if (rc == 0) |
188 | { | |
189 | if (!trace && !disassemble) | |
4f8d4a38 | 190 | { |
f9c7014e DD |
191 | /* This will longjmp to the above if an exception |
192 | happens. */ | |
193 | for (;;) | |
194 | decode_opcode (); | |
4f8d4a38 DD |
195 | } |
196 | else | |
f9c7014e DD |
197 | while (1) |
198 | { | |
199 | ||
200 | if (trace) | |
201 | printf ("\n"); | |
4f8d4a38 | 202 | |
f9c7014e DD |
203 | if (disassemble) |
204 | { | |
205 | enable_counting = 0; | |
206 | sim_disasm_one (); | |
207 | enable_counting = verbose; | |
208 | } | |
209 | ||
210 | rc = decode_opcode (); | |
211 | ||
212 | if (trace) | |
213 | trace_register_changes (); | |
214 | } | |
215 | } | |
216 | ||
217 | if (RX_HIT_BREAK (rc)) | |
218 | done (1); | |
219 | else if (RX_EXITED (rc)) | |
220 | done (RX_EXIT_STATUS (rc)); | |
221 | else if (RX_STOPPED (rc)) | |
222 | { | |
223 | if (verbose) | |
224 | printf("Stopped on signal %d\n", RX_STOP_SIG (rc)); | |
225 | exit(1); | |
4f8d4a38 | 226 | } |
f9c7014e DD |
227 | done (0); |
228 | exit (0); | |
4f8d4a38 | 229 | } |