1 /* MI Command Set - disassemble commands. 2 Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010 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. In mixed mode, it 44 is the number of disassembly lines only, not counting the source 45 lines. 46 47 always required: 48 49 MODE: 0 or 1 for disassembly only, or mixed source and disassembly, 50 respectively. */ 51 void 52 mi_cmd_disassemble (char *command, char **argv, int argc) 53 { 54 struct gdbarch *gdbarch = get_current_arch (); 55 CORE_ADDR start; 56 57 int mixed_source_and_assembly; 58 struct symtab *s; 59 60 /* Which options have we processed ... */ 61 int file_seen = 0; 62 int line_seen = 0; 63 int num_seen = 0; 64 int start_seen = 0; 65 int end_seen = 0; 66 67 /* ... and their corresponding value. */ 68 char *file_string = NULL; 69 int line_num = -1; 70 int how_many = -1; 71 CORE_ADDR low = 0; 72 CORE_ADDR high = 0; 73 74 /* Options processing stuff. */ 75 int optind = 0; 76 char *optarg; 77 enum opt 78 { 79 FILE_OPT, LINE_OPT, NUM_OPT, START_OPT, END_OPT 80 }; 81 static struct mi_opt opts[] = { 82 {"f", FILE_OPT, 1}, 83 {"l", LINE_OPT, 1}, 84 {"n", NUM_OPT, 1}, 85 {"s", START_OPT, 1}, 86 {"e", END_OPT, 1}, 87 { 0, 0, 0 } 88 }; 89 90 /* Get the options with their arguments. Keep track of what we 91 encountered. */ 92 while (1) 93 { 94 int opt = mi_getopt ("mi_cmd_disassemble", argc, argv, opts, 95 &optind, &optarg); 96 if (opt < 0) 97 break; 98 switch ((enum opt) opt) 99 { 100 case FILE_OPT: 101 file_string = xstrdup (optarg); 102 file_seen = 1; 103 break; 104 case LINE_OPT: 105 line_num = atoi (optarg); 106 line_seen = 1; 107 break; 108 case NUM_OPT: 109 how_many = atoi (optarg); 110 num_seen = 1; 111 break; 112 case START_OPT: 113 low = parse_and_eval_address (optarg); 114 start_seen = 1; 115 break; 116 case END_OPT: 117 high = parse_and_eval_address (optarg); 118 end_seen = 1; 119 break; 120 } 121 } 122 argv += optind; 123 argc -= optind; 124 125 /* Allow only filename + linenum (with how_many which is not 126 required) OR start_addr + and_addr */ 127 128 if (!((line_seen && file_seen && num_seen && !start_seen && !end_seen) 129 || (line_seen && file_seen && !num_seen && !start_seen && !end_seen) 130 || (!line_seen && !file_seen && !num_seen && start_seen && end_seen))) 131 error 132 ("mi_cmd_disassemble: Usage: ( [-f filename -l linenum [-n howmany]] | [-s startaddr -e endaddr]) [--] mixed_mode."); 133 134 if (argc != 1) 135 error 136 ("mi_cmd_disassemble: Usage: [-f filename -l linenum [-n howmany]] [-s startaddr -e endaddr] [--] mixed_mode."); 137 138 mixed_source_and_assembly = atoi (argv[0]); 139 if ((mixed_source_and_assembly != 0) && (mixed_source_and_assembly != 1)) 140 error (_("mi_cmd_disassemble: Mixed_mode argument must be 0 or 1.")); 141 142 143 /* We must get the function beginning and end where line_num is 144 contained. */ 145 146 if (line_seen && file_seen) 147 { 148 s = lookup_symtab (file_string); 149 if (s == NULL) 150 error (_("mi_cmd_disassemble: Invalid filename.")); 151 if (!find_line_pc (s, line_num, &start)) 152 error (_("mi_cmd_disassemble: Invalid line number")); 153 if (find_pc_partial_function (start, NULL, &low, &high) == 0) 154 error (_("mi_cmd_disassemble: No function contains specified address")); 155 } 156 157 gdb_disassembly (gdbarch, uiout, 158 file_string, 159 mixed_source_and_assembly? DISASSEMBLY_SOURCE : 0, 160 how_many, low, high); 161 } 162