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This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
269 lines
7.3 KiB
C
269 lines
7.3 KiB
C
/* MI Command Set - disassemble commands.
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Copyright (C) 2000-2023 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 contains 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 (with deprecated source-centric view).
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2 -- disassembly and opcodes.
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3 -- disassembly, source-centric and opcodes.
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4 -- disassembly, and source (with pc-centric view).
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5 -- disassembly, source (pc-centric) and opcodes. */
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void
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mi_cmd_disassemble (const 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;
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gdb_disassembly_flags disasm_flags;
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struct symtab *s;
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/* Which options have we processed ... */
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bool file_seen = false;
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bool line_seen = false;
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bool num_seen = false;
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bool start_seen = false;
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bool end_seen = false;
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bool addr_seen = false;
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bool opcodes_seen = false;
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bool source_seen = false;
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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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CORE_ADDR addr = 0;
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/* Flags to handle the --opcodes option. */
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enum opcodes_mode
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{
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OPCODES_DEFAULT, OPCODES_NONE, OPCODES_DISPLAY, OPCODES_BYTES
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};
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enum opcodes_mode opcodes_mode = OPCODES_DEFAULT;
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/* Handle the -source option. */
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bool show_source = false;
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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, ADDR_OPT, OPCODES_OPT,
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SHOW_SRC_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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{"a", ADDR_OPT, 1},
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{"-opcodes", OPCODES_OPT, 1},
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{"-source", SHOW_SRC_OPT, 0},
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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 = oarg;
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file_seen = true;
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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 = true;
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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 = true;
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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 = true;
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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 = true;
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break;
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case ADDR_OPT:
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addr = parse_and_eval_address (oarg);
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addr_seen = true;
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break;
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case OPCODES_OPT:
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opcodes_seen = true;
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if (strcmp (oarg, "none") == 0)
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opcodes_mode = OPCODES_NONE;
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else if (strcmp (oarg, "display") == 0)
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opcodes_mode = OPCODES_DISPLAY;
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else if (strcmp (oarg, "bytes") == 0)
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opcodes_mode = OPCODES_BYTES;
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else
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error (_("-data-disassemble: unknown value for -opcodes argument"));
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break;
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case SHOW_SRC_OPT:
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source_seen = true;
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show_source = true;
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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 OR addr. */
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if (!(
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( line_seen && file_seen && !start_seen && !end_seen
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&& !addr_seen)
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|| (!line_seen && !file_seen && !num_seen && start_seen && end_seen
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&& !addr_seen)
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|| (!line_seen && !file_seen && !num_seen && !start_seen && !end_seen
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&& addr_seen))
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|| argc > 1)
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error (_("-data-disassemble: Usage: "
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"( -f filename -l linenum [-n howmany] |"
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" -s startaddr -e endaddr | -a addr ) "
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"[ --opcodes mode ] [ --source ] [ [--] mode ]."));
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if (argc == 1)
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{
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mode = atoi (argv[0]);
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if (mode < 0 || mode > 5)
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error (_("-data-disassemble: Mode argument must be in the range 0-5."));
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}
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else
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mode = 0;
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if (mode != 0 && (source_seen || opcodes_seen))
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error (_("-data-disassemble: --opcodes and --source can only be used with mode 0"));
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/* Convert the mode into a set of disassembly flags. */
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disasm_flags = 0; /* Initialize here for -Wall. */
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switch (mode)
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{
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case 0:
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break;
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case 1:
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disasm_flags |= DISASSEMBLY_SOURCE_DEPRECATED;
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break;
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case 2:
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disasm_flags |= DISASSEMBLY_RAW_BYTES;
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break;
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case 3:
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disasm_flags |= DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_RAW_BYTES;
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break;
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case 4:
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disasm_flags |= DISASSEMBLY_SOURCE;
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break;
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case 5:
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disasm_flags |= DISASSEMBLY_SOURCE | DISASSEMBLY_RAW_BYTES;
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break;
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default:
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gdb_assert_not_reached ("bad disassembly mode");
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}
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/* Now handle the (optional) --opcodes argument. This partially
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overrides the mode value. */
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if (opcodes_mode != OPCODES_DEFAULT)
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{
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/* Remove any existing flags related to opcodes display. */
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disasm_flags &= ~(DISASSEMBLY_RAW_BYTES | DISASSEMBLY_RAW_INSN);
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/* Add back any required flags. */
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if (opcodes_mode == OPCODES_DISPLAY)
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disasm_flags |= DISASSEMBLY_RAW_INSN;
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else if (opcodes_mode == OPCODES_BYTES)
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disasm_flags |= DISASSEMBLY_RAW_BYTES;
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}
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/* Handle the optional --source argument. */
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if (show_source)
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{
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disasm_flags &= ~DISASSEMBLY_SOURCE_DEPRECATED;
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disasm_flags |= DISASSEMBLY_SOURCE;
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}
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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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else if (addr_seen)
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{
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if (find_pc_partial_function (addr, 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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disasm_flags,
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how_many, low, high);
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}
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