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/* MI Command Set - breakpoint and watchpoint commands.

   Copyright 2000, 2001, 2002 Free Software Foundation, Inc.

   Contributed by Cygnus Solutions (a Red Hat company).

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 59 Temple Place - Suite 330,

   Boston, MA 02111-1307, USA.  */

#include "defs.h"

#include "mi-cmds.h"

#include "ui-out.h"

#include "mi-out.h"

#include "breakpoint.h"

#include "gdb_string.h"

#include "mi-getopt.h"

#include "gdb-events.h"

#include "gdb.h"

enum

  {

    FROM_TTY = 0

  };

/* Output a single breakpoint. */

static void

breakpoint_notify (int b)

{

  gdb_breakpoint_query (uiout, b);

}

struct gdb_events breakpoint_hooks =

{

  breakpoint_notify,

  breakpoint_notify,

  breakpoint_notify,

};

enum bp_type

  {

    REG_BP,

    HW_BP,

    REGEXP_BP

  };

/* Insert a breakpoint. The type of breakpoint is specified by the

   first argument: -break-insert <location> --> insert a regular

   breakpoint.  -break-insert -t <location> --> insert a temporary

   breakpoint.  -break-insert -h <location> --> insert an hardware

   breakpoint.  -break-insert -t -h <location> --> insert a temporary

   hw bp.

   -break-insert -r <regexp> --> insert a bp at functions matching

   <regexp> */

enum mi_cmd_result

mi_cmd_break_insert (char *command, char **argv, int argc)

{

  char *address = NULL;

  enum bp_type type = REG_BP;

  int temp_p = 0;

  int thread = -1;

  int ignore_count = 0;

  char *condition = NULL;

  enum gdb_rc rc;

  struct gdb_events *old_hooks;

  enum opt

    {

      HARDWARE_OPT, TEMP_OPT /*, REGEXP_OPT */ , CONDITION_OPT,

      IGNORE_COUNT_OPT, THREAD_OPT

    };

  static struct mi_opt opts[] =

  {

    {"h", HARDWARE_OPT, 0},

    {"t", TEMP_OPT, 0},

    {"c", CONDITION_OPT, 1},

    {"i", IGNORE_COUNT_OPT, 1},

    {"p", THREAD_OPT, 1},

  };

  /* Parse arguments. It could be -r or -h or -t, <location> or ``--''

     to denote the end of the option list. */

  int optind = 0;

  char *optarg;

  while (1)

    {

      int opt = mi_getopt ("mi_cmd_break_insert", argc, argv, opts, &optind, &optarg);

      if (opt < 0)

        break;

      switch ((enum opt) opt)

        {

        case TEMP_OPT:

          temp_p = 1;

          break;

        case HARDWARE_OPT:

          type = HW_BP;

          break;

#if 0

        case REGEXP_OPT:

          type = REGEXP_BP;

          break;

#endif

        case CONDITION_OPT:

          condition = optarg;

          break;

        case IGNORE_COUNT_OPT:

          ignore_count = atol (optarg);

          break;

        case THREAD_OPT:

          thread = atol (optarg);

          break;

        }

    }

  if (optind >= argc)

    error ("mi_cmd_break_insert: Missing <location>");

  if (optind < argc - 1)

    error ("mi_cmd_break_insert: Garbage following <location>");

  address = argv[optind];

  /* Now we have what we need, let's insert the breakpoint! */

  old_hooks = set_gdb_event_hooks (&breakpoint_hooks);

  switch (type)

    {

    case REG_BP:

      rc = gdb_breakpoint (address, condition,

                           thread, ignore_count);

      break;

    case HW_BP:

      rc = gdb_breakpoint (address, condition,

                           1 /*hardwareflag */ , temp_p,

                           thread, ignore_count);

      break;

#if 0

    case REGEXP_BP:

      if (temp_p)

        error ("mi_cmd_break_insert: Unsupported tempoary regexp breakpoint");

      else

        rbreak_command_wrapper (address, FROM_TTY);

      return MI_CMD_DONE;

      break;

#endif

    default:

      internal_error (__FILE__, __LINE__,

                      "mi_cmd_break_insert: Bad switch.");

    }

  set_gdb_event_hooks (old_hooks);

  if (rc == GDB_RC_FAIL)

    return MI_CMD_CAUGHT_ERROR;

  else

    return MI_CMD_DONE;

}

enum wp_type

{

  REG_WP,

  READ_WP,

  ACCESS_WP

};

/* Insert a watchpoint. The type of watchpoint is specified by the

   first argument:

   -break-watch <expr> --> insert a regular wp.

   -break-watch -r <expr> --> insert a read watchpoint.

   -break-watch -a <expr> --> insert an access wp. */

enum mi_cmd_result

mi_cmd_break_watch (char *command, char **argv, int argc)

{

  char *expr = NULL;

  enum wp_type type = REG_WP;

  enum opt

    {

      READ_OPT, ACCESS_OPT

    };

  static struct mi_opt opts[] =

  {

    {"r", READ_OPT, 0},

    {"a", ACCESS_OPT, 0},

  };

  /* Parse arguments. */

  int optind = 0;

  char *optarg;

  while (1)

    {

      int opt = mi_getopt ("mi_cmd_break_watch", argc, argv, opts, &optind, &optarg);

      if (opt < 0)

        break;

      switch ((enum opt) opt)

        {

        case READ_OPT:

          type = READ_WP;

          break;

        case ACCESS_OPT:

          type = ACCESS_WP;

          break;

        }

    }

  if (optind >= argc)

    error ("mi_cmd_break_watch: Missing <expression>");

  if (optind < argc - 1)

    error ("mi_cmd_break_watch: Garbage following <expression>");

  expr = argv[optind];

  /* Now we have what we need, let's insert the watchpoint! */

  switch (type)

    {

    case REG_WP:

      watch_command_wrapper (expr, FROM_TTY);

      break;

    case READ_WP:

      rwatch_command_wrapper (expr, FROM_TTY);

      break;

    case ACCESS_WP:

      awatch_command_wrapper (expr, FROM_TTY);

      break;

    default:

      error ("mi_cmd_break_watch: Unknown watchpoint type.");

    }

  return MI_CMD_DONE;

}