| 1 | /* MI Command Set - disassemble commands. |
| 2 | Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009 |
| 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, how_many, low, high); |
| 160 | |
| 161 | } |