1 /* MI Command Set - disassemble commands. 2 Copyright (C) 2000-2013 Free Software Foundation, Inc. 3 Contributed by Cygnus Solutions (a Red Hat company). 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #include "defs.h" 21 #include "arch-utils.h" 22 #include "target.h" 23 #include "value.h" 24 #include "mi-cmds.h" 25 #include "mi-getopt.h" 26 #include "gdb_string.h" 27 #include "ui-out.h" 28 #include "disasm.h" 29 30 /* The arguments to be passed on the command line and parsed here are 31 either: 32 33 START-ADDRESS: address to start the disassembly at. 34 END-ADDRESS: address to end the disassembly at. 35 36 or: 37 38 FILENAME: The name of the file where we want disassemble from. 39 LINE: The line around which we want to disassemble. It will 40 disassemble the function that contins that line. 41 HOW_MANY: Number of disassembly lines to display. With source, it 42 is the number of disassembly lines only, not counting the source 43 lines. 44 45 always required: 46 47 MODE: 0 -- disassembly. 48 1 -- disassembly and source. 49 2 -- disassembly and opcodes. 50 3 -- disassembly, source and opcodes. 51 */ 52 53 void 54 mi_cmd_disassemble (char *command, char **argv, int argc) 55 { 56 struct gdbarch *gdbarch = get_current_arch (); 57 struct ui_out *uiout = current_uiout; 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 oind = 0; 80 char *oarg; 81 enum opt 82 { 83 FILE_OPT, LINE_OPT, NUM_OPT, START_OPT, END_OPT 84 }; 85 static const struct mi_opt opts[] = 86 { 87 {"f", FILE_OPT, 1}, 88 {"l", LINE_OPT, 1}, 89 {"n", NUM_OPT, 1}, 90 {"s", START_OPT, 1}, 91 {"e", END_OPT, 1}, 92 { 0, 0, 0 } 93 }; 94 95 /* Get the options with their arguments. Keep track of what we 96 encountered. */ 97 while (1) 98 { 99 int opt = mi_getopt ("-data-disassemble", argc, argv, opts, 100 &oind, &oarg); 101 if (opt < 0) 102 break; 103 switch ((enum opt) opt) 104 { 105 case FILE_OPT: 106 file_string = xstrdup (oarg); 107 file_seen = 1; 108 make_cleanup (xfree, file_string); 109 break; 110 case LINE_OPT: 111 line_num = atoi (oarg); 112 line_seen = 1; 113 break; 114 case NUM_OPT: 115 how_many = atoi (oarg); 116 num_seen = 1; 117 break; 118 case START_OPT: 119 low = parse_and_eval_address (oarg); 120 start_seen = 1; 121 break; 122 case END_OPT: 123 high = parse_and_eval_address (oarg); 124 end_seen = 1; 125 break; 126 } 127 } 128 argv += oind; 129 argc -= oind; 130 131 /* Allow only filename + linenum (with how_many which is not 132 required) OR start_addr + end_addr. */ 133 134 if (!((line_seen && file_seen && num_seen && !start_seen && !end_seen) 135 || (line_seen && file_seen && !num_seen && !start_seen && !end_seen) 136 || (!line_seen && !file_seen && !num_seen && start_seen && end_seen))) 137 error (_("-data-disassemble: Usage: ( [-f filename -l linenum [-n " 138 "howmany]] | [-s startaddr -e endaddr]) [--] mode.")); 139 140 if (argc != 1) 141 error (_("-data-disassemble: Usage: [-f filename -l linenum " 142 "[-n howmany]] [-s startaddr -e endaddr] [--] mode.")); 143 144 mode = atoi (argv[0]); 145 if (mode < 0 || mode > 3) 146 error (_("-data-disassemble: Mode argument must be 0, 1, 2, or 3.")); 147 148 /* Convert the mode into a set of disassembly flags. */ 149 150 disasm_flags = 0; 151 if (mode & 0x1) 152 disasm_flags |= DISASSEMBLY_SOURCE; 153 if (mode & 0x2) 154 disasm_flags |= DISASSEMBLY_RAW_INSN; 155 156 /* We must get the function beginning and end where line_num is 157 contained. */ 158 159 if (line_seen && file_seen) 160 { 161 s = lookup_symtab (file_string); 162 if (s == NULL) 163 error (_("-data-disassemble: Invalid filename.")); 164 if (!find_line_pc (s, line_num, &start)) 165 error (_("-data-disassemble: Invalid line number")); 166 if (find_pc_partial_function (start, NULL, &low, &high) == 0) 167 error (_("-data-disassemble: " 168 "No function contains specified address")); 169 } 170 171 gdb_disassembly (gdbarch, uiout, 172 file_string, 173 disasm_flags, 174 how_many, low, high); 175 176 do_cleanups (cleanups); 177 } 178