1 /* MI Command Set - disassemble commands. 2 Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010, 2011 3 Free Software Foundation, Inc. 4 Contributed by Cygnus Solutions (a Red Hat company). 5 6 This file is part of GDB. 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 "defs.h" 22 #include "arch-utils.h" 23 #include "target.h" 24 #include "value.h" 25 #include "mi-cmds.h" 26 #include "mi-getopt.h" 27 #include "gdb_string.h" 28 #include "ui-out.h" 29 #include "disasm.h" 30 31 /* The arguments to be passed on the command line and parsed here are: 32 33 either: 34 35 START-ADDRESS: address to start the disassembly at. 36 END-ADDRESS: address to end the disassembly at. 37 38 or: 39 40 FILENAME: The name of the file where we want disassemble from. 41 LINE: The line around which we want to disassemble. It will 42 disassemble the function that contins that line. 43 HOW_MANY: Number of disassembly lines to display. With source, it 44 is the number of disassembly lines only, not counting the source 45 lines. 46 47 always required: 48 49 MODE: 0 -- disassembly. 50 1 -- disassembly and source. 51 2 -- disassembly and opcodes. 52 3 -- disassembly, source and opcodes. 53 */ 54 void 55 mi_cmd_disassemble (char *command, char **argv, int argc) 56 { 57 struct gdbarch *gdbarch = get_current_arch (); 58 CORE_ADDR start; 59 60 int mode, disasm_flags; 61 struct symtab *s; 62 63 /* Which options have we processed ... */ 64 int file_seen = 0; 65 int line_seen = 0; 66 int num_seen = 0; 67 int start_seen = 0; 68 int end_seen = 0; 69 70 /* ... and their corresponding value. */ 71 char *file_string = NULL; 72 int line_num = -1; 73 int how_many = -1; 74 CORE_ADDR low = 0; 75 CORE_ADDR high = 0; 76 struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); 77 78 /* Options processing stuff. */ 79 int optind = 0; 80 char *optarg; 81 enum opt 82 { 83 FILE_OPT, LINE_OPT, NUM_OPT, START_OPT, END_OPT 84 }; 85 static struct mi_opt opts[] = { 86 {"f", FILE_OPT, 1}, 87 {"l", LINE_OPT, 1}, 88 {"n", NUM_OPT, 1}, 89 {"s", START_OPT, 1}, 90 {"e", END_OPT, 1}, 91 { 0, 0, 0 } 92 }; 93 94 /* Get the options with their arguments. Keep track of what we 95 encountered. */ 96 while (1) 97 { 98 int opt = mi_getopt ("-data-disassemble", argc, argv, opts, 99 &optind, &optarg); 100 if (opt < 0) 101 break; 102 switch ((enum opt) opt) 103 { 104 case FILE_OPT: 105 file_string = xstrdup (optarg); 106 file_seen = 1; 107 make_cleanup (xfree, file_string); 108 break; 109 case LINE_OPT: 110 line_num = atoi (optarg); 111 line_seen = 1; 112 break; 113 case NUM_OPT: 114 how_many = atoi (optarg); 115 num_seen = 1; 116 break; 117 case START_OPT: 118 low = parse_and_eval_address (optarg); 119 start_seen = 1; 120 break; 121 case END_OPT: 122 high = parse_and_eval_address (optarg); 123 end_seen = 1; 124 break; 125 } 126 } 127 argv += optind; 128 argc -= optind; 129 130 /* Allow only filename + linenum (with how_many which is not 131 required) OR start_addr + and_addr */ 132 133 if (!((line_seen && file_seen && num_seen && !start_seen && !end_seen) 134 || (line_seen && file_seen && !num_seen && !start_seen && !end_seen) 135 || (!line_seen && !file_seen && !num_seen && start_seen && end_seen))) 136 error (_("-data-disassemble: Usage: ( [-f filename -l linenum [-n " 137 "howmany]] | [-s startaddr -e endaddr]) [--] mode.")); 138 139 if (argc != 1) 140 error (_("-data-disassemble: Usage: [-f filename -l linenum " 141 "[-n howmany]] [-s startaddr -e endaddr] [--] mode.")); 142 143 mode = atoi (argv[0]); 144 if (mode < 0 || mode > 3) 145 error (_("-data-disassemble: Mode argument must be 0, 1, 2, or 3.")); 146 147 /* Convert the mode into a set of disassembly flags */ 148 149 disasm_flags = 0; 150 if (mode & 0x1) 151 disasm_flags |= DISASSEMBLY_SOURCE; 152 if (mode & 0x2) 153 disasm_flags |= DISASSEMBLY_RAW_INSN; 154 155 /* We must get the function beginning and end where line_num is 156 contained. */ 157 158 if (line_seen && file_seen) 159 { 160 s = lookup_symtab (file_string); 161 if (s == NULL) 162 error (_("-data-disassemble: Invalid filename.")); 163 if (!find_line_pc (s, line_num, &start)) 164 error (_("-data-disassemble: Invalid line number")); 165 if (find_pc_partial_function (start, NULL, &low, &high) == 0) 166 error (_("-data-disassemble: " 167 "No function contains specified address")); 168 } 169 170 gdb_disassembly (gdbarch, uiout, 171 file_string, 172 disasm_flags, 173 how_many, low, high); 174 175 do_cleanups (cleanups); 176 } 177