176 lines
4.8 KiB
C
176 lines
4.8 KiB
C
/* MI Command Set - disassemble commands.
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Copyright (C) 2000-2015 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions (a Red Hat company).
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "arch-utils.h"
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#include "target.h"
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#include "value.h"
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#include "mi-cmds.h"
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#include "mi-getopt.h"
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#include "ui-out.h"
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#include "disasm.h"
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/* The arguments to be passed on the command line and parsed here are
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either:
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START-ADDRESS: address to start the disassembly at.
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END-ADDRESS: address to end the disassembly at.
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or:
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FILENAME: The name of the file where we want disassemble from.
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LINE: The line around which we want to disassemble. It will
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disassemble the function that contins that line.
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HOW_MANY: Number of disassembly lines to display. With source, it
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is the number of disassembly lines only, not counting the source
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lines.
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always required:
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MODE: 0 -- disassembly.
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1 -- disassembly and source.
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2 -- disassembly and opcodes.
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3 -- disassembly, source and opcodes.
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*/
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void
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mi_cmd_disassemble (char *command, char **argv, int argc)
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{
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struct gdbarch *gdbarch = get_current_arch ();
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struct ui_out *uiout = current_uiout;
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CORE_ADDR start;
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int mode, disasm_flags;
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struct symtab *s;
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/* Which options have we processed ... */
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int file_seen = 0;
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int line_seen = 0;
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int num_seen = 0;
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int start_seen = 0;
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int end_seen = 0;
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/* ... and their corresponding value. */
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char *file_string = NULL;
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int line_num = -1;
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int how_many = -1;
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CORE_ADDR low = 0;
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CORE_ADDR high = 0;
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struct cleanup *cleanups = make_cleanup (null_cleanup, NULL);
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/* Options processing stuff. */
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int oind = 0;
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char *oarg;
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enum opt
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{
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FILE_OPT, LINE_OPT, NUM_OPT, START_OPT, END_OPT
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};
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static const struct mi_opt opts[] =
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{
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{"f", FILE_OPT, 1},
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{"l", LINE_OPT, 1},
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{"n", NUM_OPT, 1},
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{"s", START_OPT, 1},
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{"e", END_OPT, 1},
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{ 0, 0, 0 }
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};
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/* Get the options with their arguments. Keep track of what we
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encountered. */
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while (1)
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{
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int opt = mi_getopt ("-data-disassemble", argc, argv, opts,
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&oind, &oarg);
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if (opt < 0)
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break;
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switch ((enum opt) opt)
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{
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case FILE_OPT:
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file_string = xstrdup (oarg);
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file_seen = 1;
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make_cleanup (xfree, file_string);
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break;
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case LINE_OPT:
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line_num = atoi (oarg);
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line_seen = 1;
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break;
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case NUM_OPT:
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how_many = atoi (oarg);
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num_seen = 1;
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break;
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case START_OPT:
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low = parse_and_eval_address (oarg);
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start_seen = 1;
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break;
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case END_OPT:
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high = parse_and_eval_address (oarg);
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end_seen = 1;
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break;
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}
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}
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argv += oind;
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argc -= oind;
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/* Allow only filename + linenum (with how_many which is not
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required) OR start_addr + end_addr. */
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if (!((line_seen && file_seen && num_seen && !start_seen && !end_seen)
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|| (line_seen && file_seen && !num_seen && !start_seen && !end_seen)
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|| (!line_seen && !file_seen && !num_seen && start_seen && end_seen)))
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error (_("-data-disassemble: Usage: ( [-f filename -l linenum [-n "
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"howmany]] | [-s startaddr -e endaddr]) [--] mode."));
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if (argc != 1)
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error (_("-data-disassemble: Usage: [-f filename -l linenum "
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"[-n howmany]] [-s startaddr -e endaddr] [--] mode."));
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mode = atoi (argv[0]);
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if (mode < 0 || mode > 3)
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error (_("-data-disassemble: Mode argument must be 0, 1, 2, or 3."));
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/* Convert the mode into a set of disassembly flags. */
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disasm_flags = 0;
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if (mode & 0x1)
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disasm_flags |= DISASSEMBLY_SOURCE;
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if (mode & 0x2)
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disasm_flags |= DISASSEMBLY_RAW_INSN;
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/* We must get the function beginning and end where line_num is
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contained. */
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if (line_seen && file_seen)
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{
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s = lookup_symtab (file_string);
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if (s == NULL)
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error (_("-data-disassemble: Invalid filename."));
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if (!find_line_pc (s, line_num, &start))
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error (_("-data-disassemble: Invalid line number"));
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if (find_pc_partial_function (start, NULL, &low, &high) == 0)
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error (_("-data-disassemble: "
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"No function contains specified address"));
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}
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gdb_disassembly (gdbarch, uiout,
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file_string,
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disasm_flags,
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how_many, low, high);
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do_cleanups (cleanups);
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}
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