| 1 | /* MI Command Set - disassemble commands. |
| 2 | Copyright (C) 2000-2016 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 "ui-out.h" |
| 27 | #include "disasm.h" |
| 28 | |
| 29 | /* The arguments to be passed on the command line and parsed here are |
| 30 | either: |
| 31 | |
| 32 | START-ADDRESS: address to start the disassembly at. |
| 33 | END-ADDRESS: address to end the disassembly at. |
| 34 | |
| 35 | or: |
| 36 | |
| 37 | FILENAME: The name of the file where we want disassemble from. |
| 38 | LINE: The line around which we want to disassemble. It will |
| 39 | disassemble the function that contins that line. |
| 40 | HOW_MANY: Number of disassembly lines to display. With source, it |
| 41 | is the number of disassembly lines only, not counting the source |
| 42 | lines. |
| 43 | |
| 44 | always required: |
| 45 | |
| 46 | MODE: 0 -- disassembly. |
| 47 | 1 -- disassembly and source (with deprecated source-centric view). |
| 48 | 2 -- disassembly and opcodes. |
| 49 | 3 -- disassembly, source-centric and opcodes. |
| 50 | 4 -- disassembly, and source (with pc-centric view). |
| 51 | 5 -- disassembly, source (pc-centric) and opcodes. */ |
| 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 > 5) |
| 146 | error (_("-data-disassemble: Mode argument must be in the range 0-5.")); |
| 147 | |
| 148 | /* Convert the mode into a set of disassembly flags. */ |
| 149 | |
| 150 | disasm_flags = 0; /* Initialize here for -Wall. */ |
| 151 | switch (mode) |
| 152 | { |
| 153 | case 0: |
| 154 | break; |
| 155 | case 1: |
| 156 | disasm_flags |= DISASSEMBLY_SOURCE_DEPRECATED; |
| 157 | break; |
| 158 | case 2: |
| 159 | disasm_flags |= DISASSEMBLY_RAW_INSN; |
| 160 | break; |
| 161 | case 3: |
| 162 | disasm_flags |= DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_RAW_INSN; |
| 163 | break; |
| 164 | case 4: |
| 165 | disasm_flags |= DISASSEMBLY_SOURCE; |
| 166 | break; |
| 167 | case 5: |
| 168 | disasm_flags |= DISASSEMBLY_SOURCE | DISASSEMBLY_RAW_INSN; |
| 169 | break; |
| 170 | default: |
| 171 | gdb_assert_not_reached ("bad disassembly mode"); |
| 172 | } |
| 173 | |
| 174 | /* We must get the function beginning and end where line_num is |
| 175 | contained. */ |
| 176 | |
| 177 | if (line_seen && file_seen) |
| 178 | { |
| 179 | s = lookup_symtab (file_string); |
| 180 | if (s == NULL) |
| 181 | error (_("-data-disassemble: Invalid filename.")); |
| 182 | if (!find_line_pc (s, line_num, &start)) |
| 183 | error (_("-data-disassemble: Invalid line number")); |
| 184 | if (find_pc_partial_function (start, NULL, &low, &high) == 0) |
| 185 | error (_("-data-disassemble: " |
| 186 | "No function contains specified address")); |
| 187 | } |
| 188 | |
| 189 | gdb_disassembly (gdbarch, uiout, |
| 190 | file_string, |
| 191 | disasm_flags, |
| 192 | how_many, low, high); |
| 193 | |
| 194 | do_cleanups (cleanups); |
| 195 | } |