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4f8d4a38 DD |
1 | /* main.c --- main function for stand-alone RX simulator. |
2 | ||
213516ef | 3 | Copyright (C) 2005-2023 Free Software Foundation, Inc. |
4f8d4a38 DD |
4 | Contributed by Red Hat, Inc. |
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 | ||
6df01ab8 MF |
21 | /* This must come before any other includes. */ |
22 | #include "defs.h" | |
4f8d4a38 DD |
23 | |
24 | #include <stdio.h> | |
25 | #include <string.h> | |
26 | #include <stdlib.h> | |
27 | #include <unistd.h> | |
28 | #include <assert.h> | |
29 | #include <setjmp.h> | |
30 | #include <signal.h> | |
2388a152 | 31 | #include <getopt.h> |
4f8d4a38 DD |
32 | |
33 | #include "bfd.h" | |
34 | ||
35 | #include "cpu.h" | |
36 | #include "mem.h" | |
37 | #include "misc.h" | |
38 | #include "load.h" | |
39 | #include "trace.h" | |
40 | #include "err.h" | |
41 | ||
42 | static int disassemble = 0; | |
43 | ||
44 | /* This must be higher than any other option index. */ | |
45 | #define OPT_ACT 400 | |
46 | ||
47 | #define ACT(E,A) (OPT_ACT + SIM_ERR_##E * SIM_ERRACTION_NUM_ACTIONS + SIM_ERRACTION_##A) | |
48 | ||
49 | static struct option sim_options[] = | |
50 | { | |
51 | { "end-sim-args", 0, NULL, 'E' }, | |
52 | { "exit-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,EXIT) }, | |
53 | { "warn-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,WARN) }, | |
54 | { "ignore-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,IGNORE) }, | |
55 | { "exit-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,EXIT) }, | |
56 | { "warn-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,WARN) }, | |
57 | { "ignore-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,IGNORE) }, | |
58 | { "exit-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,EXIT) }, | |
59 | { "warn-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,WARN) }, | |
60 | { "ignore-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,IGNORE) }, | |
61 | { "exit-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,EXIT) }, | |
62 | { "warn-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,WARN) }, | |
63 | { "ignore-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,IGNORE) }, | |
64 | { 0, 0, 0, 0 } | |
65 | }; | |
66 | ||
67 | static void | |
68 | done (int exit_code) | |
69 | { | |
70 | if (verbose) | |
71 | { | |
72 | stack_heap_stats (); | |
73 | mem_usage_stats (); | |
74 | /* Only use comma separated numbers when being very verbose. | |
75 | Comma separated numbers are hard to parse in awk scripts. */ | |
76 | if (verbose > 1) | |
77 | printf ("insns: %14s\n", comma (rx_cycles)); | |
78 | else | |
79 | printf ("insns: %u\n", rx_cycles); | |
93378652 DD |
80 | |
81 | pipeline_stats (); | |
4f8d4a38 DD |
82 | } |
83 | exit (exit_code); | |
84 | } | |
85 | ||
86 | int | |
87 | main (int argc, char **argv) | |
88 | { | |
89 | int o; | |
90 | int save_trace; | |
91 | bfd *prog; | |
f9c7014e | 92 | int rc; |
4f8d4a38 DD |
93 | |
94 | /* By default, we exit when an execution error occurs. */ | |
95 | execution_error_init_standalone (); | |
96 | ||
97 | while ((o = getopt_long (argc, argv, "tvdeEwi", sim_options, NULL)) != -1) | |
98 | { | |
99 | if (o == 'E') | |
100 | /* Stop processing the command line. This is so that any remaining | |
101 | words on the command line that look like arguments will be passed | |
102 | on to the program being simulated. */ | |
103 | break; | |
104 | ||
105 | if (o >= OPT_ACT) | |
106 | { | |
107 | int e, a; | |
108 | ||
109 | o -= OPT_ACT; | |
110 | e = o / SIM_ERRACTION_NUM_ACTIONS; | |
111 | a = o % SIM_ERRACTION_NUM_ACTIONS; | |
112 | execution_error_set_action (e, a); | |
113 | } | |
114 | else switch (o) | |
115 | { | |
116 | case 't': | |
117 | trace++; | |
118 | break; | |
119 | case 'v': | |
120 | verbose++; | |
121 | break; | |
122 | case 'd': | |
123 | disassemble++; | |
124 | break; | |
125 | case 'e': | |
126 | execution_error_init_standalone (); | |
127 | break; | |
128 | case 'w': | |
129 | execution_error_warn_all (); | |
130 | break; | |
131 | case 'i': | |
132 | execution_error_ignore_all (); | |
133 | break; | |
134 | case '?': | |
135 | { | |
136 | int i; | |
137 | fprintf (stderr, | |
138 | "usage: run [options] program [arguments]\n"); | |
139 | fprintf (stderr, | |
140 | "\t-v\t- increase verbosity.\n" | |
141 | "\t-t\t- trace.\n" | |
142 | "\t-d\t- disassemble.\n" | |
143 | "\t-E\t- stop processing sim args\n" | |
144 | "\t-e\t- exit on all execution errors.\n" | |
145 | "\t-w\t- warn (do not exit) on all execution errors.\n" | |
146 | "\t-i\t- ignore all execution errors.\n"); | |
147 | for (i=0; sim_options[i].name; i++) | |
148 | fprintf (stderr, "\t--%s\n", sim_options[i].name); | |
149 | exit (1); | |
150 | } | |
151 | } | |
152 | } | |
153 | ||
154 | prog = bfd_openr (argv[optind], 0); | |
155 | if (!prog) | |
156 | { | |
157 | fprintf (stderr, "Can't read %s\n", argv[optind]); | |
158 | exit (1); | |
159 | } | |
160 | ||
161 | if (!bfd_check_format (prog, bfd_object)) | |
162 | { | |
163 | fprintf (stderr, "%s not a rx program\n", argv[optind]); | |
164 | exit (1); | |
165 | } | |
166 | ||
167 | init_regs (); | |
168 | ||
169 | rx_in_gdb = 0; | |
170 | save_trace = trace; | |
171 | trace = 0; | |
d98bfeb0 | 172 | rx_load (prog, NULL); |
4f8d4a38 DD |
173 | trace = save_trace; |
174 | ||
175 | sim_disasm_init (prog); | |
176 | ||
f9c7014e | 177 | enable_counting = verbose; |
4f8d4a38 | 178 | |
f9c7014e | 179 | rc = setjmp (decode_jmp_buf); |
4f8d4a38 | 180 | |
f9c7014e DD |
181 | if (rc == 0) |
182 | { | |
183 | if (!trace && !disassemble) | |
4f8d4a38 | 184 | { |
f9c7014e DD |
185 | /* This will longjmp to the above if an exception |
186 | happens. */ | |
187 | for (;;) | |
188 | decode_opcode (); | |
4f8d4a38 DD |
189 | } |
190 | else | |
f9c7014e DD |
191 | while (1) |
192 | { | |
193 | ||
194 | if (trace) | |
195 | printf ("\n"); | |
4f8d4a38 | 196 | |
f9c7014e DD |
197 | if (disassemble) |
198 | { | |
199 | enable_counting = 0; | |
200 | sim_disasm_one (); | |
201 | enable_counting = verbose; | |
202 | } | |
203 | ||
204 | rc = decode_opcode (); | |
205 | ||
206 | if (trace) | |
207 | trace_register_changes (); | |
208 | } | |
209 | } | |
210 | ||
211 | if (RX_HIT_BREAK (rc)) | |
212 | done (1); | |
213 | else if (RX_EXITED (rc)) | |
214 | done (RX_EXIT_STATUS (rc)); | |
215 | else if (RX_STOPPED (rc)) | |
216 | { | |
217 | if (verbose) | |
218 | printf("Stopped on signal %d\n", RX_STOP_SIG (rc)); | |
219 | exit(1); | |
4f8d4a38 | 220 | } |
f9c7014e DD |
221 | done (0); |
222 | exit (0); | |
4f8d4a38 | 223 | } |