| 1 | /* This file is part of the program psim. |
| 2 | |
| 3 | Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au> |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | #include <stdarg.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <stdio.h> |
| 25 | #include <string.h> |
| 26 | |
| 27 | #include "psim.h" |
| 28 | |
| 29 | extern char **environ; |
| 30 | extern char *optarg; |
| 31 | extern int optind; |
| 32 | extern int optopt; |
| 33 | extern int opterr; |
| 34 | |
| 35 | void |
| 36 | printf_filtered(const char *msg, ...) |
| 37 | { |
| 38 | va_list ap; |
| 39 | va_start(ap, msg); |
| 40 | vprintf(msg, ap); |
| 41 | va_end(ap); |
| 42 | } |
| 43 | |
| 44 | void |
| 45 | error (char *msg, ...) |
| 46 | { |
| 47 | va_list ap; |
| 48 | va_start(ap, msg); |
| 49 | vprintf(msg, ap); |
| 50 | va_end(ap); |
| 51 | exit (1); |
| 52 | } |
| 53 | |
| 54 | void * |
| 55 | zalloc(long size) |
| 56 | { |
| 57 | void *memory = malloc(size); |
| 58 | if (memory == NULL) |
| 59 | error("zmalloc failed\n"); |
| 60 | bzero(memory, size); |
| 61 | return memory; |
| 62 | } |
| 63 | |
| 64 | void |
| 65 | zfree(void *chunk) |
| 66 | { |
| 67 | free(chunk); |
| 68 | } |
| 69 | |
| 70 | static void |
| 71 | usage(void) |
| 72 | { |
| 73 | printf_filtered("Usage:\n\tpsim [ -t <trace-option> ] <image> [ <image-args> ... ]\n"); |
| 74 | trace_usage(); |
| 75 | error(""); |
| 76 | } |
| 77 | |
| 78 | int |
| 79 | main(int argc, char **argv) |
| 80 | { |
| 81 | psim *system; |
| 82 | const char *name_of_file; |
| 83 | char *arg_; |
| 84 | unsigned_word stack_pointer; |
| 85 | psim_status status; |
| 86 | int letter; |
| 87 | int i; |
| 88 | int print_info = 0; |
| 89 | |
| 90 | /* check for arguments -- note sim_calls.c also contains argument processing |
| 91 | code for the simulator linked within gdb. */ |
| 92 | while ((letter = getopt (argc, argv, "It:")) != EOF) |
| 93 | { |
| 94 | switch (letter) { |
| 95 | case 't': |
| 96 | trace_option(optarg); |
| 97 | break; |
| 98 | case 'I': |
| 99 | print_info = 1; |
| 100 | break; |
| 101 | default: |
| 102 | usage(); |
| 103 | } |
| 104 | } |
| 105 | if (optind >= argc) |
| 106 | usage(); |
| 107 | name_of_file = argv[optind]; |
| 108 | |
| 109 | /* create the simulator */ |
| 110 | system = psim_create(name_of_file); |
| 111 | |
| 112 | /* fudge the environment so that _=prog-name */ |
| 113 | arg_ = (char*)zalloc(strlen(argv[optind]) + strlen("_=") + 1); |
| 114 | strcpy(arg_, "_="); |
| 115 | strcat(arg_, argv[optind]); |
| 116 | putenv(arg_); |
| 117 | |
| 118 | /* initialize it */ |
| 119 | psim_init(system); |
| 120 | psim_stack(system, &argv[optind], environ); |
| 121 | |
| 122 | psim_run(system); |
| 123 | |
| 124 | /* any final clean up */ |
| 125 | if (print_info) |
| 126 | psim_print_info (system, 2); |
| 127 | |
| 128 | /* why did we stop */ |
| 129 | status = psim_get_status(system); |
| 130 | switch (status.reason) { |
| 131 | case was_continuing: |
| 132 | error("psim: continuing while stoped!\n"); |
| 133 | return 0; |
| 134 | case was_trap: |
| 135 | error("psim: no trap insn\n"); |
| 136 | return 0; |
| 137 | case was_exited: |
| 138 | return status.signal; |
| 139 | case was_signalled: |
| 140 | printf ("%s: Caught signal %d at address 0x%lx\n", |
| 141 | name_of_file, (int)status.signal, |
| 142 | (long)status.program_counter); |
| 143 | return status.signal; |
| 144 | default: |
| 145 | error("unknown halt condition\n"); |
| 146 | return 0; |
| 147 | } |
| 148 | } |