a58d7472bd
* defs.h (read_command_lines_1): Add missing 'void'. * cli/cli-script.c (recurse_read_control_structure): Add missing 'void'. (read_next_line): Likewise. (read_command_lines_1): Likewise.
304 lines
7.2 KiB
C
304 lines
7.2 KiB
C
/* MI Command Set - breakpoint and watchpoint commands.
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Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010
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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 "mi-cmds.h"
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#include "ui-out.h"
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#include "mi-out.h"
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#include "breakpoint.h"
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#include "gdb_string.h"
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#include "mi-getopt.h"
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#include "gdb.h"
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#include "exceptions.h"
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#include "observer.h"
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enum
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{
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FROM_TTY = 0
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};
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/* True if MI breakpoint observers have been registered. */
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static int mi_breakpoint_observers_installed;
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/* Control whether breakpoint_notify may act. */
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static int mi_can_breakpoint_notify;
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/* Output a single breakpoint, when allowed. */
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static void
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breakpoint_notify (int b)
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{
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if (mi_can_breakpoint_notify)
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gdb_breakpoint_query (uiout, b, NULL);
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}
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enum bp_type
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{
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REG_BP,
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HW_BP,
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REGEXP_BP
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};
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/* Implements the -break-insert command.
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See the MI manual for the list of possible options. */
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void
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mi_cmd_break_insert (char *command, char **argv, int argc)
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{
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char *address = NULL;
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enum bp_type type = REG_BP;
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int temp_p = 0;
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int thread = -1;
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int ignore_count = 0;
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char *condition = NULL;
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int pending = 0;
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int enabled = 1;
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struct gdb_exception e;
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struct gdb_events *old_hooks;
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enum opt
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{
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HARDWARE_OPT, TEMP_OPT /*, REGEXP_OPT */ , CONDITION_OPT,
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IGNORE_COUNT_OPT, THREAD_OPT, PENDING_OPT, DISABLE_OPT
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};
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static struct mi_opt opts[] =
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{
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{"h", HARDWARE_OPT, 0},
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{"t", TEMP_OPT, 0},
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{"c", CONDITION_OPT, 1},
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{"i", IGNORE_COUNT_OPT, 1},
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{"p", THREAD_OPT, 1},
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{"f", PENDING_OPT, 0},
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{"d", DISABLE_OPT, 0},
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{ 0, 0, 0 }
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};
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/* Parse arguments. It could be -r or -h or -t, <location> or ``--''
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to denote the end of the option list. */
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int optind = 0;
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char *optarg;
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while (1)
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{
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int opt = mi_getopt ("mi_cmd_break_insert", argc, argv, opts, &optind, &optarg);
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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 TEMP_OPT:
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temp_p = 1;
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break;
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case HARDWARE_OPT:
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type = HW_BP;
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break;
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#if 0
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case REGEXP_OPT:
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type = REGEXP_BP;
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break;
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#endif
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case CONDITION_OPT:
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condition = optarg;
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break;
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case IGNORE_COUNT_OPT:
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ignore_count = atol (optarg);
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break;
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case THREAD_OPT:
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thread = atol (optarg);
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break;
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case PENDING_OPT:
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pending = 1;
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break;
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case DISABLE_OPT:
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enabled = 0;
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}
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}
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if (optind >= argc)
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error (_("mi_cmd_break_insert: Missing <location>"));
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if (optind < argc - 1)
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error (_("mi_cmd_break_insert: Garbage following <location>"));
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address = argv[optind];
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/* Now we have what we need, let's insert the breakpoint! */
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if (! mi_breakpoint_observers_installed)
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{
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observer_attach_breakpoint_created (breakpoint_notify);
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observer_attach_breakpoint_modified (breakpoint_notify);
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observer_attach_breakpoint_deleted (breakpoint_notify);
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mi_breakpoint_observers_installed = 1;
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}
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mi_can_breakpoint_notify = 1;
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/* Make sure we restore hooks even if exception is thrown. */
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TRY_CATCH (e, RETURN_MASK_ALL)
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{
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switch (type)
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{
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case REG_BP:
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set_breakpoint (get_current_arch (), address, condition,
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0 /*hardwareflag */ , temp_p,
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thread, ignore_count,
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pending, enabled);
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break;
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case HW_BP:
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set_breakpoint (get_current_arch (), address, condition,
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1 /*hardwareflag */ , temp_p,
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thread, ignore_count,
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pending, enabled);
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break;
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#if 0
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case REGEXP_BP:
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if (temp_p)
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error (_("mi_cmd_break_insert: Unsupported tempoary regexp breakpoint"));
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else
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rbreak_command_wrapper (address, FROM_TTY);
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break;
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#endif
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default:
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internal_error (__FILE__, __LINE__,
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_("mi_cmd_break_insert: Bad switch."));
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}
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}
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mi_can_breakpoint_notify = 0;
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if (e.reason < 0)
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throw_exception (e);
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}
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enum wp_type
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{
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REG_WP,
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READ_WP,
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ACCESS_WP
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};
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/* Insert a watchpoint. The type of watchpoint is specified by the
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first argument:
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-break-watch <expr> --> insert a regular wp.
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-break-watch -r <expr> --> insert a read watchpoint.
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-break-watch -a <expr> --> insert an access wp. */
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void
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mi_cmd_break_watch (char *command, char **argv, int argc)
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{
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char *expr = NULL;
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enum wp_type type = REG_WP;
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enum opt
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{
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READ_OPT, ACCESS_OPT
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};
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static struct mi_opt opts[] =
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{
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{"r", READ_OPT, 0},
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{"a", ACCESS_OPT, 0},
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{ 0, 0, 0 }
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};
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/* Parse arguments. */
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int optind = 0;
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char *optarg;
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while (1)
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{
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int opt = mi_getopt ("mi_cmd_break_watch", argc, argv, opts, &optind, &optarg);
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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 READ_OPT:
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type = READ_WP;
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break;
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case ACCESS_OPT:
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type = ACCESS_WP;
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break;
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}
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}
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if (optind >= argc)
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error (_("mi_cmd_break_watch: Missing <expression>"));
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if (optind < argc - 1)
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error (_("mi_cmd_break_watch: Garbage following <expression>"));
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expr = argv[optind];
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/* Now we have what we need, let's insert the watchpoint! */
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switch (type)
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{
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case REG_WP:
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watch_command_wrapper (expr, FROM_TTY);
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break;
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case READ_WP:
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rwatch_command_wrapper (expr, FROM_TTY);
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break;
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case ACCESS_WP:
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awatch_command_wrapper (expr, FROM_TTY);
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break;
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default:
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error (_("mi_cmd_break_watch: Unknown watchpoint type."));
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}
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}
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/* The mi_read_next_line consults these variable to return successive
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command lines. While it would be clearer to use a closure pointer,
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it is not expected that any future code will use read_command_lines_1,
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therefore no point of overengineering. */
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static char **mi_command_line_array;
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static int mi_command_line_array_cnt;
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static int mi_command_line_array_ptr;
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static char *
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mi_read_next_line (void)
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{
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if (mi_command_line_array_ptr == mi_command_line_array_cnt)
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return NULL;
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else
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return mi_command_line_array[mi_command_line_array_ptr++];
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}
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void
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mi_cmd_break_commands (char *command, char **argv, int argc)
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{
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struct command_line *break_command;
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char *endptr;
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int bnum;
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struct breakpoint *b;
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if (argc < 1)
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error ("USAGE: %s <BKPT> [<COMMAND> [<COMMAND>...]]", command);
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bnum = strtol (argv[0], &endptr, 0);
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if (endptr == argv[0])
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error ("breakpoint number argument \"%s\" is not a number.",
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argv[0]);
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else if (*endptr != '\0')
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error ("junk at the end of breakpoint number argument \"%s\".",
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argv[0]);
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b = get_breakpoint (bnum);
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if (b == NULL)
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error ("breakpoint %d not found.", bnum);
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mi_command_line_array = argv;
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mi_command_line_array_ptr = 1;
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mi_command_line_array_cnt = argc;
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break_command = read_command_lines_1 (mi_read_next_line, 1);
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breakpoint_set_commands (b, break_command);
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}
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