| 1 |
|
/* |
| 2 |
< |
* mon.cpp - Machine language monitor |
| 2 |
> |
* mon.cpp - mon main program |
| 3 |
|
* |
| 4 |
< |
* (C) 1997-1999 Christian Bauer |
| 4 |
> |
* mon (C) 1997-2000 Christian Bauer, Marc Hellwig |
| 5 |
> |
* |
| 6 |
> |
* This program is free software; you can redistribute it and/or modify |
| 7 |
> |
* it under the terms of the GNU General Public License as published by |
| 8 |
> |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
> |
* (at your option) any later version. |
| 10 |
> |
* |
| 11 |
> |
* This program is distributed in the hope that it will be useful, |
| 12 |
> |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
> |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
> |
* GNU General Public License for more details. |
| 15 |
> |
* |
| 16 |
> |
* You should have received a copy of the GNU General Public License |
| 17 |
> |
* along with this program; if not, write to the Free Software |
| 18 |
> |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
|
*/ |
| 20 |
|
|
| 21 |
< |
#include <sys/types.h> |
| 22 |
< |
#include <netinet/in.h> |
| 21 |
> |
#include "sysdeps.h" |
| 22 |
> |
|
| 23 |
|
#include <stdio.h> |
| 24 |
|
#include <stdlib.h> |
| 11 |
– |
#include <string.h> |
| 25 |
|
#include <signal.h> |
| 26 |
|
#include <ctype.h> |
| 14 |
– |
#include <unistd.h> |
| 15 |
– |
#include <errno.h> |
| 27 |
|
|
| 28 |
+ |
#if defined(HAVE_READLINE_H) |
| 29 |
+ |
extern "C" { |
| 30 |
+ |
#include <readline.h> |
| 31 |
+ |
} |
| 32 |
+ |
#elif defined(HAVE_READLINE_READLINE_H) |
| 33 |
|
extern "C" { |
| 34 |
< |
extern char *readline(char *prompt); |
| 19 |
< |
extern void add_history(char *str); |
| 34 |
> |
#include <readline/readline.h> |
| 35 |
|
} |
| 36 |
+ |
#endif |
| 37 |
+ |
|
| 38 |
+ |
#if defined(HAVE_HISTORY_H) |
| 39 |
+ |
extern "C" { |
| 40 |
+ |
#include <history.h> |
| 41 |
+ |
} |
| 42 |
+ |
#elif defined(HAVE_READLINE_HISTORY_H) |
| 43 |
+ |
extern "C" { |
| 44 |
+ |
#include <readline/history.h> |
| 45 |
+ |
} |
| 46 |
+ |
#endif |
| 47 |
|
|
| 48 |
|
#include "mon.h" |
| 49 |
|
#include "mon_cmd.h" |
| 50 |
|
|
| 51 |
+ |
#ifndef VERSION |
| 52 |
+ |
#define VERSION "2" |
| 53 |
+ |
#endif |
| 54 |
+ |
|
| 55 |
|
|
| 56 |
|
// Buffer we're operating on |
| 57 |
|
bool mon_use_real_mem = false; |
| 207 |
|
* Access to buffer |
| 208 |
|
*/ |
| 209 |
|
|
| 210 |
< |
uint32 mon_read_byte(uint32 adr) |
| 210 |
> |
uint32 (*mon_read_byte)(uint32 adr); |
| 211 |
> |
|
| 212 |
> |
uint32 mon_read_byte_buffer(uint32 adr) |
| 213 |
|
{ |
| 214 |
< |
if (mon_use_real_mem) |
| 183 |
< |
return *(uint8 *)adr; |
| 184 |
< |
else |
| 185 |
< |
return mem[adr % mon_mem_size]; |
| 214 |
> |
return mem[adr % mon_mem_size]; |
| 215 |
|
} |
| 216 |
|
|
| 217 |
< |
void mon_write_byte(uint32 adr, uint32 b) |
| 217 |
> |
uint32 mon_read_byte_real(uint32 adr) |
| 218 |
|
{ |
| 219 |
< |
if (mon_use_real_mem) |
| 220 |
< |
*(uint8 *)adr = b; |
| 221 |
< |
else |
| 222 |
< |
mem[adr % mon_mem_size] = b; |
| 219 |
> |
return *(uint8 *)adr; |
| 220 |
> |
} |
| 221 |
> |
|
| 222 |
> |
void (*mon_write_byte)(uint32 adr, uint32 b); |
| 223 |
> |
|
| 224 |
> |
void mon_write_byte_buffer(uint32 adr, uint32 b) |
| 225 |
> |
{ |
| 226 |
> |
mem[adr % mon_mem_size] = b; |
| 227 |
> |
} |
| 228 |
> |
|
| 229 |
> |
void mon_write_byte_real(uint32 adr, uint32 b) |
| 230 |
> |
{ |
| 231 |
> |
*(uint8 *)adr = b; |
| 232 |
|
} |
| 233 |
|
|
| 234 |
|
uint32 mon_read_half(uint32 adr) |
| 235 |
|
{ |
| 236 |
< |
if (mon_use_real_mem) |
| 199 |
< |
return ntohs(*(uint16 *)adr); |
| 200 |
< |
else |
| 201 |
< |
return mem[adr % mon_mem_size] << 8 | mem[(adr+1) % mon_mem_size]; |
| 236 |
> |
return (mon_read_byte(adr) << 8) | mon_read_byte(adr+1); |
| 237 |
|
} |
| 238 |
|
|
| 239 |
|
void mon_write_half(uint32 adr, uint32 w) |
| 240 |
|
{ |
| 241 |
< |
if (mon_use_real_mem) |
| 242 |
< |
*(uint16 *)adr = htons(w); |
| 208 |
< |
else { |
| 209 |
< |
mem[adr % mon_mem_size] = w >> 8; |
| 210 |
< |
mem[(adr+1) % mon_mem_size] = w; |
| 211 |
< |
} |
| 241 |
> |
mon_write_byte(adr, w >> 8); |
| 242 |
> |
mon_write_byte(adr+1, w); |
| 243 |
|
} |
| 244 |
|
|
| 245 |
|
uint32 mon_read_word(uint32 adr) |
| 246 |
|
{ |
| 247 |
< |
if (mon_use_real_mem) |
| 217 |
< |
return ntohl(*(uint32 *)adr); |
| 218 |
< |
else |
| 219 |
< |
return mon_read_byte(adr) << 24 | mon_read_byte(adr+1) << 16 | mon_read_byte(adr+2) << 8 | mon_read_byte(adr+3); |
| 247 |
> |
return (mon_read_byte(adr) << 24) | (mon_read_byte(adr+1) << 16) | (mon_read_byte(adr+2) << 8) | mon_read_byte(adr+3); |
| 248 |
|
} |
| 249 |
|
|
| 250 |
|
void mon_write_word(uint32 adr, uint32 l) |
| 251 |
|
{ |
| 252 |
< |
if (mon_use_real_mem) |
| 253 |
< |
*(uint32 *)adr = htonl(l); |
| 254 |
< |
else { |
| 255 |
< |
mem[adr % mon_mem_size] = l >> 24; |
| 228 |
< |
mem[(adr+1) % mon_mem_size] = l >> 16; |
| 229 |
< |
mem[(adr+2) % mon_mem_size] = l >> 8; |
| 230 |
< |
mem[(adr+3) % mon_mem_size] = l; |
| 231 |
< |
} |
| 252 |
> |
mon_write_byte(adr, l >> 24); |
| 253 |
> |
mon_write_byte(adr+1, l >> 16); |
| 254 |
> |
mon_write_byte(adr+2, l >> 8); |
| 255 |
> |
mon_write_byte(adr+3, l); |
| 256 |
|
} |
| 257 |
|
|
| 258 |
|
|
| 262 |
|
|
| 263 |
|
static void read_line(char *prompt) |
| 264 |
|
{ |
| 265 |
+ |
#ifdef HAVE_LIBREADLINE |
| 266 |
|
static char *line_read = NULL; |
| 267 |
|
|
| 268 |
|
if (line_read) { |
| 277 |
|
|
| 278 |
|
strncpy(in_ptr = input, line_read, INPUT_LENGTH); |
| 279 |
|
input[INPUT_LENGTH-1] = 0; |
| 280 |
+ |
#else |
| 281 |
+ |
fprintf(monout, prompt); |
| 282 |
+ |
fflush(monout); |
| 283 |
+ |
fgets(in_ptr = input, INPUT_LENGTH, monin); |
| 284 |
+ |
char *s = strchr(input, '\n'); |
| 285 |
+ |
if (s != NULL) |
| 286 |
+ |
*s = 0; |
| 287 |
+ |
#endif |
| 288 |
|
} |
| 289 |
|
|
| 290 |
|
|
| 842 |
|
fprintf(monout, "No variables defined\n"); |
| 843 |
|
else |
| 844 |
|
for (Variable *v=first_var; v; v=v->next) |
| 845 |
< |
fprintf(monout, "%s = %08lx\n", v->name, v->value); |
| 845 |
> |
fprintf(monout, "%s = %08x\n", v->name, v->value); |
| 846 |
|
|
| 847 |
|
} else if (mon_token == T_NAME) { |
| 848 |
|
char var_name[256]; |
| 935 |
|
} |
| 936 |
|
|
| 937 |
|
if (mon_token == T_END) { |
| 938 |
< |
fprintf(monerr, "Buffer size: %08lx bytes\n", mon_mem_size); |
| 938 |
> |
fprintf(monerr, "Buffer size: %08x bytes\n", mon_mem_size); |
| 939 |
|
return; |
| 940 |
|
} |
| 941 |
|
|
| 947 |
|
} |
| 948 |
|
|
| 949 |
|
if ((mem = (uint8 *)realloc(mem, size)) != NULL) |
| 950 |
< |
fprintf(monerr, "Buffer size: %08lx bytes\n", mon_mem_size = size); |
| 950 |
> |
fprintf(monerr, "Buffer size: %08x bytes\n", mon_mem_size = size); |
| 951 |
|
else |
| 952 |
|
fprintf(monerr, "Unable to reallocate buffer\n"); |
| 953 |
|
} |
| 989 |
|
read_func = mon_read_word; |
| 990 |
|
write_func = mon_write_word; |
| 991 |
|
break; |
| 992 |
+ |
default: |
| 993 |
+ |
abort(); |
| 994 |
+ |
break; |
| 995 |
|
} |
| 996 |
|
|
| 997 |
|
while (adr<=end_adr) { |
| 1068 |
|
num_cmds = 0; |
| 1069 |
|
cmd_help = NULL; |
| 1070 |
|
|
| 1071 |
< |
mon_add_command("??", mon_cmd_list, "?? Show list of commands\n"); |
| 1072 |
< |
mon_add_command("ver", version, "ver Show version\n"); |
| 1073 |
< |
mon_add_command("?", print_expr, "? expression Calculate expression\n"); |
| 1074 |
< |
mon_add_command("@", reallocate, "@ [size] Reallocate buffer\n"); |
| 1075 |
< |
mon_add_command("i", ascii_dump, "i [start [end]] ASCII memory dump\n"); |
| 1076 |
< |
mon_add_command("m", memory_dump, "m [start [end]] Hex/ASCII memory dump\n"); |
| 1077 |
< |
mon_add_command("d", disassemble_ppc, "d [start [end]] Disassemble PowerPC code\n"); |
| 1078 |
< |
mon_add_command("d65", disassemble_6502, "d65 [start [end]] Disassemble 6502 code\n"); |
| 1079 |
< |
mon_add_command("d68", disassemble_680x0, "d68 [start [end]] Disassemble 680x0 code\n"); |
| 1080 |
< |
mon_add_command("d80", disassemble_8080, "d80 [start [end]] Disassemble 8080 code\n"); |
| 1081 |
< |
mon_add_command("d86", disassemble_80x86, "d86 [start [end]] Disassemble 80x86 code\n"); |
| 1082 |
< |
mon_add_command(":", modify, ": start string Modify memory\n"); |
| 1083 |
< |
mon_add_command("f", fill, "f start end string Fill memory\n"); |
| 1084 |
< |
mon_add_command("y", apply_byte, "y[b|h|w] start end expr Apply expression to memory\n"); |
| 1071 |
> |
mon_add_command("??", mon_cmd_list, "?? Show list of commands\n"); |
| 1072 |
> |
mon_add_command("ver", version, "ver Show version\n"); |
| 1073 |
> |
mon_add_command("?", print_expr, "? expression Calculate expression\n"); |
| 1074 |
> |
mon_add_command("@", reallocate, "@ [size] Reallocate buffer\n"); |
| 1075 |
> |
mon_add_command("i", ascii_dump, "i [start [end]] ASCII memory dump\n"); |
| 1076 |
> |
mon_add_command("m", memory_dump, "m [start [end]] Hex/ASCII memory dump\n"); |
| 1077 |
> |
mon_add_command("b", binary_dump, "b [start [end]] Binary memory dump\n"); |
| 1078 |
> |
mon_add_command("d", disassemble_ppc, "d [start [end]] Disassemble PowerPC code\n"); |
| 1079 |
> |
mon_add_command("d65", disassemble_6502, "d65 [start [end]] Disassemble 6502 code\n"); |
| 1080 |
> |
mon_add_command("d68", disassemble_680x0, "d68 [start [end]] Disassemble 680x0 code\n"); |
| 1081 |
> |
mon_add_command("d80", disassemble_8080, "d80 [start [end]] Disassemble 8080 code\n"); |
| 1082 |
> |
mon_add_command("d86", disassemble_80x86_32, "d86 [start [end]] Disassemble 80x86 (32-bit) code\n"); |
| 1083 |
> |
mon_add_command("d8086", disassemble_80x86_16, "d86 [start [end]] Disassemble 80x86 (16-bit) code\n"); |
| 1084 |
> |
mon_add_command(":", modify, ": start string Modify memory\n"); |
| 1085 |
> |
mon_add_command("f", fill, "f start end string Fill memory\n"); |
| 1086 |
> |
mon_add_command("y", apply_byte, "y[b|h|w] start end expr Apply expression to memory\n"); |
| 1087 |
|
mon_add_command("yb", apply_byte, NULL); |
| 1088 |
|
mon_add_command("yh", apply_half, NULL); |
| 1089 |
|
mon_add_command("yw", apply_word, NULL); |
| 1090 |
< |
mon_add_command("t", transfer, "t start end dest Transfer memory\n"); |
| 1091 |
< |
mon_add_command("c", compare, "c start end dest Compare memory\n"); |
| 1092 |
< |
mon_add_command("h", help_or_hunt, "h start end string Search for byte string\n"); |
| 1093 |
< |
mon_add_command("\\", shell_command, "\\ \"command\" Execute shell command\n"); |
| 1094 |
< |
mon_add_command("ls", mon_exec, "ls [args] List directory contents\n"); |
| 1095 |
< |
mon_add_command("rm", mon_exec, "rm [args] Remove file(s)\n"); |
| 1096 |
< |
mon_add_command("cp", mon_exec, "cp [args] Copy file(s)\n"); |
| 1097 |
< |
mon_add_command("mv", mon_exec, "mv [args] Move file(s)\n"); |
| 1098 |
< |
mon_add_command("cd", mon_change_dir, "cd directory Change current directory\n"); |
| 1099 |
< |
mon_add_command("o", redir_output, "o [\"file\"] Redirect output\n"); |
| 1100 |
< |
mon_add_command("[", load_data, "[ start \"file\" Load data from file\n"); |
| 1101 |
< |
mon_add_command("]", save_data, "] start size \"file\" Save data to file\n"); |
| 1102 |
< |
mon_add_command("set", set_var, "set [var[=value]] Set/clear/show variables\n"); |
| 1103 |
< |
mon_add_command("cv", clear_vars, "cv Clear all variables\n"); |
| 1090 |
> |
mon_add_command("t", transfer, "t start end dest Transfer memory\n"); |
| 1091 |
> |
mon_add_command("c", compare, "c start end dest Compare memory\n"); |
| 1092 |
> |
mon_add_command("h", help_or_hunt, "h start end string Search for byte string\n"); |
| 1093 |
> |
mon_add_command("\\", shell_command, "\\ \"command\" Execute shell command\n"); |
| 1094 |
> |
mon_add_command("ls", mon_exec, "ls [args] List directory contents\n"); |
| 1095 |
> |
mon_add_command("rm", mon_exec, "rm [args] Remove file(s)\n"); |
| 1096 |
> |
mon_add_command("cp", mon_exec, "cp [args] Copy file(s)\n"); |
| 1097 |
> |
mon_add_command("mv", mon_exec, "mv [args] Move file(s)\n"); |
| 1098 |
> |
mon_add_command("cd", mon_change_dir, "cd directory Change current directory\n"); |
| 1099 |
> |
mon_add_command("o", redir_output, "o [\"file\"] Redirect output\n"); |
| 1100 |
> |
mon_add_command("[", load_data, "[ start \"file\" Load data from file\n"); |
| 1101 |
> |
mon_add_command("]", save_data, "] start size \"file\" Save data to file\n"); |
| 1102 |
> |
mon_add_command("set", set_var, "set [var[=value]] Set/clear/show variables\n"); |
| 1103 |
> |
mon_add_command("cv", clear_vars, "cv Clear all variables\n"); |
| 1104 |
> |
|
| 1105 |
> |
mon_read_byte = NULL; |
| 1106 |
> |
mon_write_byte = NULL; |
| 1107 |
|
} |
| 1108 |
|
|
| 1109 |
|
|
| 1134 |
|
monout = stdout; |
| 1135 |
|
monerr = stdout; |
| 1136 |
|
|
| 1137 |
< |
if (argc) { |
| 1138 |
< |
// Access real memory if mon was started as "rmon" |
| 1139 |
< |
char *prgname = argv[0]; |
| 1140 |
< |
char *lastslash; |
| 1141 |
< |
if ((lastslash = strrchr(prgname, '/')) != NULL) |
| 1142 |
< |
prgname = lastslash + 1; |
| 1143 |
< |
if (strcmp(prgname, "rmon") == 0) |
| 1137 |
> |
// Make argc/argv point to the actual arguments |
| 1138 |
> |
if (argc) |
| 1139 |
> |
argc--; argv++; |
| 1140 |
> |
|
| 1141 |
> |
// Parse arguments |
| 1142 |
> |
mon_macos_mode = false; |
| 1143 |
> |
mon_use_real_mem = false; |
| 1144 |
> |
while (argc > 0) { |
| 1145 |
> |
if (strcmp(argv[0], "-m") == 0) |
| 1146 |
> |
mon_macos_mode = true; |
| 1147 |
> |
else if (strcmp(argv[0], "-r") == 0) |
| 1148 |
|
mon_use_real_mem = true; |
| 1149 |
+ |
else |
| 1150 |
+ |
break; |
| 1151 |
+ |
argc--; argv++; |
| 1152 |
+ |
} |
| 1153 |
+ |
interactive = (argc == 0); |
| 1154 |
|
|
| 1155 |
< |
// Make argc/argv point to the actual arguments |
| 1156 |
< |
argc--; |
| 1157 |
< |
argv++; |
| 1158 |
< |
interactive = (argc == 0); |
| 1155 |
> |
// Set up memory access functions if not supplied by the user |
| 1156 |
> |
if (mon_read_byte == NULL) { |
| 1157 |
> |
if (mon_use_real_mem) |
| 1158 |
> |
mon_read_byte = mon_read_byte_real; |
| 1159 |
> |
else |
| 1160 |
> |
mon_read_byte = mon_read_byte_buffer; |
| 1161 |
> |
} |
| 1162 |
> |
if (mon_write_byte == NULL) { |
| 1163 |
> |
if (mon_use_real_mem) |
| 1164 |
> |
mon_write_byte = mon_write_byte_real; |
| 1165 |
> |
else |
| 1166 |
> |
mon_write_byte = mon_write_byte_buffer; |
| 1167 |
|
} |
| 1168 |
|
|
| 1169 |
|
// Allocate buffer |
| 1173 |
|
|
| 1174 |
|
// Print banner |
| 1175 |
|
if (interactive) |
| 1176 |
< |
fprintf(monerr, "\n *** mon V%d.%d by Christian Bauer ***\n" |
| 1177 |
< |
" *** Press 'h' for help ***\n\n", MON_VERSION, MON_REVISION); |
| 1176 |
> |
fprintf(monerr, "\n *** mon V" VERSION " by Christian Bauer and Marc Hellwig ***\n" |
| 1177 |
> |
" *** Press 'h' for help ***\n\n"); |
| 1178 |
|
} |
| 1179 |
|
|
| 1180 |
|
init_abort(); |
| 1183 |
|
while (!done) { |
| 1184 |
|
if (interactive) { |
| 1185 |
|
char prompt[16]; |
| 1186 |
< |
sprintf(prompt, "[%08lx]-> ", mon_dot_address); |
| 1186 |
> |
sprintf(prompt, "[%08x]-> ", mon_dot_address); |
| 1187 |
|
read_line(prompt); |
| 1188 |
|
} else { |
| 1189 |
|
if (argc == 0) { |
