Add missing files from last commit :-(

6 files changed, 1141 insertions, 1 deletions

diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 4a67706..c5de436 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -145,7 +145,7 @@ TARGET_SYSTEM_ROOT_DEFINE = @TARGET_SYSTEM_ROOT_DEFINE@
 #
 SUBDIR_CLI_OBS = \
 	cli-dump.o \
-	cli-decode.o cli-script.o cli-cmds.o cli-setshow.o cli-utils.o
+	cli-decode.o cli-script.o cli-cmds.o cli-setshow.o cli-utils.o \
 	cli-interp.o
 SUBDIR_CLI_SRCS = \
 	cli/cli-dump.c \
diff --git a/gdb/cli/cli-interp.c b/gdb/cli/cli-interp.c
new file mode 100644
index 0000000..e2116e7
--- /dev/null
+++ b/gdb/cli/cli-interp.c
@@ -0,0 +1,138 @@
+/* CLI Definitions for GDB, the GNU debugger.
+
+   Copyright 2002, 2003 Free Software Foundation, Inc.
+
+   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 "interps.h"
+#include "wrapper.h"
+#include "event-top.h"
+#include "ui-out.h"
+#include "cli-out.h"
+#include "top.h"		/* for "execute_command" */
+#include "gdb_string.h"
+
+struct ui_out *cli_uiout;
+
+/* These are the ui_out and the interpreter for the console interpreter. */
+
+/* Longjmp-safe wrapper for "execute_command" */
+static int do_captured_execute_command (struct ui_out *uiout, void *data);
+static enum gdb_rc safe_execute_command (struct ui_out *uiout, char *command,
+					 int from_tty);
+struct captured_execute_command_args
+{
+  char *command;
+  int from_tty;
+};
+
+/* These implement the cli out interpreter: */
+
+static void *
+cli_interpreter_init (void)
+{
+  return NULL;
+}
+
+static int
+cli_interpreter_resume (void *data)
+{
+  /*sync_execution = 1; */
+  gdb_setup_readline ();
+  return 1;
+}
+
+static int
+cli_interpreter_suspend (void *data)
+{
+  gdb_disable_readline ();
+  return 1;
+}
+
+/* Don't display the prompt if we are set quiet.  */
+static int
+cli_interpreter_display_prompt_p (void *data)
+{
+  if (interp_quiet_p (NULL))
+    return 0;
+  else
+    return 1;
+}
+
+static int
+cli_interpreter_exec (void *data, const char *command_str)
+{
+  int result;
+  struct ui_file *old_stream;
+
+  /* FIXME: cagney/2003-02-01: Need to const char *propogate
+     safe_execute_command.  */
+  char *str = strcpy (alloca (strlen (command_str) + 1), command_str);
+
+  /* gdb_stdout could change between the time cli_uiout was initialized
+     and now. Since we're probably using a different interpreter which has
+     a new ui_file for gdb_stdout, use that one instead of the default.
+
+     It is important that it gets reset everytime, since the user could
+     set gdb to use a different interpreter. */
+  old_stream = cli_out_set_stream (cli_uiout, gdb_stdout);
+  result = safe_execute_command (cli_uiout, str, 1);
+  cli_out_set_stream (cli_uiout, old_stream);
+  return result;
+}
+
+static int
+do_captured_execute_command (struct ui_out *uiout, void *data)
+{
+  struct captured_execute_command_args *args =
+    (struct captured_execute_command_args *) data;
+  execute_command (args->command, args->from_tty);
+  return GDB_RC_OK;
+}
+
+static enum gdb_rc
+safe_execute_command (struct ui_out *uiout, char *command, int from_tty)
+{
+  struct captured_execute_command_args args;
+  args.command = command;
+  args.from_tty = from_tty;
+  return catch_exceptions (uiout, do_captured_execute_command, &args,
+			   NULL, RETURN_MASK_ALL);
+}
+
+
+/* standard gdb initialization hook */
+void
+_initialize_cli_interp (void)
+{
+  static const struct interp_procs procs = {
+    cli_interpreter_init,	/* init_proc */
+    cli_interpreter_resume,	/* resume_proc */
+    cli_interpreter_suspend,	/* suspend_proc */
+    cli_interpreter_exec,	/* exec_proc */
+    cli_interpreter_display_prompt_p	/* prompt_proc_p */
+  };
+  struct interp *cli_interp;
+
+  /* Create a default uiout builder for the CLI. */
+  cli_uiout = cli_out_new (gdb_stdout);
+  cli_interp = interp_new (INTERP_CONSOLE, NULL, cli_uiout, &procs);
+
+  interp_add (cli_interp);
+}
diff --git a/gdb/interps.c b/gdb/interps.c
new file mode 100644
index 0000000..551f416
--- /dev/null
+++ b/gdb/interps.c
@@ -0,0 +1,484 @@
+/* Manages interpreters for GDB, the GNU debugger.
+
+   Copyright 2000, 2002, 2003 Free Software Foundation, Inc.
+
+   Written by Jim Ingham <jingham@apple.com> of Apple Computer, Inc.
+
+   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. */
+
+/* This is just a first cut at separating out the "interpreter"
+   functions of gdb into self-contained modules.  There are a couple
+   of open areas that need to be sorted out:
+
+   1) The interpreter explicitly contains a UI_OUT, and can insert itself
+   into the event loop, but it doesn't explicitly contain hooks for readline.
+   I did this because it seems to me many interpreters won't want to use
+   the readline command interface, and it is probably simpler to just let
+   them take over the input in their resume proc.  */
+
+#include "defs.h"
+#include "gdbcmd.h"
+#include "ui-out.h"
+#include "event-loop.h"
+#include "event-top.h"
+#include "interps.h"
+#include "completer.h"
+#include "gdb_string.h"
+#include "gdb-events.h"
+#include "gdb_assert.h"
+#include "top.h"		/* For command_loop.  */
+
+struct interp
+{
+  /* This is the name in "-i=" and set interpreter. */
+  const char *name;
+
+  /* Interpreters are stored in a linked list, this is the next
+     one...  */
+  struct interp *next;
+
+  /* This is a cookie that an instance of the interpreter can use.
+     This is a bit confused right now as the exact initialization
+     sequence for it, and how it relates to the interpreter's uiout
+     object is a bit confused.  */
+  void *data;
+
+  /* Has the init_proc been run? */
+  int inited;
+
+  /* This is the ui_out used to collect results for this interpreter.
+     It can be a formatter for stdout, as is the case for the console
+     & mi outputs, or it might be a result formatter.  */
+  struct ui_out *interpreter_out;
+
+  const struct interp_procs *procs;
+  int quiet_p;
+};
+
+/* Functions local to this file. */
+static void initialize_interps (void);
+static char **interpreter_completer (char *text, char *word);
+
+/* The magic initialization routine for this module. */
+
+void _initialize_interpreter (void);
+
+/* Variables local to this file: */
+
+static struct interp *interp_list = NULL;
+static struct interp *current_interpreter = NULL;
+
+static int interpreter_initialized = 0;
+
+/* interp_new - This allocates space for a new interpreter,
+   fills the fields from the inputs, and returns a pointer to the
+   interpreter. */
+struct interp *
+interp_new (const char *name, void *data, struct ui_out *uiout,
+	    const struct interp_procs *procs)
+{
+  struct interp *new_interp;
+
+  new_interp = XMALLOC (struct interp);
+
+  new_interp->name = xstrdup (name);
+  new_interp->data = data;
+  new_interp->interpreter_out = uiout;
+  new_interp->quiet_p = 0;
+  new_interp->procs = procs;
+  new_interp->inited = 0;
+
+  return new_interp;
+}
+
+/* Add interpreter INTERP to the gdb interpreter list.  The
+   interpreter must not have previously been added.  */
+void
+interp_add (struct interp *interp)
+{
+  if (!interpreter_initialized)
+    initialize_interps ();
+
+  gdb_assert (interp_lookup (interp->name) == NULL);
+
+  interp->next = interp_list;
+  interp_list = interp;
+}
+
+/* This sets the current interpreter to be INTERP.  If INTERP has not
+   been initialized, then this will also run the init proc.  If the
+   init proc is successful, return 1, if it fails, set the old
+   interpreter back in place and return 0.  If we can't restore the
+   old interpreter, then raise an internal error, since we are in
+   pretty bad shape at this point. */
+int
+interp_set (struct interp *interp)
+{
+  struct interp *old_interp = current_interpreter;
+  int first_time = 0;
+
+
+  char buffer[64];
+
+  if (current_interpreter != NULL)
+    {
+      do_all_continuations ();
+      ui_out_flush (uiout);
+      if (current_interpreter->procs->suspend_proc
+	  && !current_interpreter->procs->suspend_proc (current_interpreter->
+							data))
+	{
+	  error ("Could not suspend interpreter \"%s\"\n",
+		 current_interpreter->name);
+	}
+    }
+  else
+    {
+      first_time = 1;
+    }
+
+  current_interpreter = interp;
+
+  /* We use interpreter_p for the "set interpreter" variable, so we need
+     to make sure we have a malloc'ed copy for the set command to free. */
+  if (interpreter_p != NULL
+      && strcmp (current_interpreter->name, interpreter_p) != 0)
+    {
+      xfree (interpreter_p);
+
+      interpreter_p = xstrdup (current_interpreter->name);
+    }
+
+  uiout = interp->interpreter_out;
+
+  /* Run the init proc.  If it fails, try to restore the old interp. */
+
+  if (!interp->inited)
+    {
+      if (interp->procs->init_proc != NULL)
+	{
+	  interp->data = interp->procs->init_proc ();
+	}
+      interp->inited = 1;
+    }
+
+  /* Clear out any installed interpreter hooks/event handlers. */
+  clear_interpreter_hooks ();
+
+  if (interp->procs->resume_proc != NULL
+      && (!interp->procs->resume_proc (interp->data)))
+    {
+      if (!interp_set (old_interp))
+	internal_error (__FILE__, __LINE__,
+			"Failed to initialize new interp \"%s\" %s",
+			interp->name, "and could not restore old interp!\n");
+      return 0;
+    }
+
+  /* Finally, put up the new prompt to show that we are indeed here. 
+     Also, display_gdb_prompt for the console does some readline magic
+     which is needed for the console interpreter, at least... */
+
+  if (!first_time)
+    {
+      if (!interp_quiet_p (interp))
+	{
+	  sprintf (buffer, "Switching to interpreter \"%.24s\".\n",
+		   interp->name);
+	  ui_out_text (uiout, buffer);
+	}
+      display_gdb_prompt (NULL);
+    }
+
+  return 1;
+}
+
+/* interp_lookup - Looks up the interpreter for NAME.  If no such
+   interpreter exists, return NULL, otherwise return a pointer to the
+   interpreter.  */
+struct interp *
+interp_lookup (const char *name)
+{
+  struct interp *interp;
+
+  if (name == NULL || strlen (name) == 0)
+    return NULL;
+
+  for (interp = interp_list; interp != NULL; interp = interp->next)
+    {
+      if (strcmp (interp->name, name) == 0)
+	return interp;
+    }
+
+  return NULL;
+}
+
+/* Returns the current interpreter. */
+
+struct ui_out *
+interp_ui_out (struct interp *interp)
+{
+  if (interp != NULL)
+    return interp->interpreter_out;
+
+  return current_interpreter->interpreter_out;
+}
+
+/* Returns true if the current interp is the passed in name. */
+int
+current_interp_named_p (const char *interp_name)
+{
+  if (current_interpreter)
+    return (strcmp (current_interpreter->name, interp_name) == 0);
+
+  return 0;
+}
+
+/* This is called in display_gdb_prompt.  If the proc returns a zero
+   value, display_gdb_prompt will return without displaying the
+   prompt.  */
+int
+current_interp_display_prompt_p (void)
+{
+  if (current_interpreter == NULL
+      || current_interpreter->procs->prompt_proc_p == NULL)
+    return 0;
+  else
+    return current_interpreter->procs->prompt_proc_p (current_interpreter->
+						      data);
+}
+
+/* Run the current command interpreter's main loop.  */
+void
+current_interp_command_loop (void)
+{
+  /* Somewhat messy.  For the moment prop up all the old ways of
+     selecting the command loop.  `command_loop_hook' should be
+     deprecated.  */
+  if (command_loop_hook != NULL)
+    command_loop_hook ();
+  else if (current_interpreter != NULL
+	   && current_interpreter->procs->command_loop_proc != NULL)
+    current_interpreter->procs->command_loop_proc (current_interpreter->data);
+  else
+    command_loop ();
+}
+
+int
+interp_quiet_p (struct interp *interp)
+{
+  if (interp != NULL)
+    return interp->quiet_p;
+  else
+    return current_interpreter->quiet_p;
+}
+
+int
+interp_set_quiet (struct interp *interp, int quiet)
+{
+  int old_val = interp->quiet_p;
+  interp->quiet_p = quiet;
+  return old_val;
+}
+
+/* interp_exec - This executes COMMAND_STR in the current 
+   interpreter. */
+int
+interp_exec_p (struct interp *interp)
+{
+  return interp->procs->exec_proc != NULL;
+}
+
+int
+interp_exec (struct interp *interp, const char *command_str)
+{
+  if (interp->procs->exec_proc != NULL)
+    {
+      return interp->procs->exec_proc (interp->data, command_str);
+    }
+  return 0;
+}
+
+/* A convenience routine that nulls out all the
+   common command hooks.  Use it when removing your interpreter in its 
+   suspend proc. */
+void
+clear_interpreter_hooks ()
+{
+  init_ui_hook = 0;
+  print_frame_info_listing_hook = 0;
+  /*print_frame_more_info_hook = 0; */
+  query_hook = 0;
+  warning_hook = 0;
+  create_breakpoint_hook = 0;
+  delete_breakpoint_hook = 0;
+  modify_breakpoint_hook = 0;
+  interactive_hook = 0;
+  registers_changed_hook = 0;
+  readline_begin_hook = 0;
+  readline_hook = 0;
+  readline_end_hook = 0;
+  register_changed_hook = 0;
+  memory_changed_hook = 0;
+  context_hook = 0;
+  target_wait_hook = 0;
+  call_command_hook = 0;
+  error_hook = 0;
+  error_begin_hook = 0;
+  command_loop_hook = 0;
+  clear_gdb_event_hooks ();
+}
+
+/* This is a lazy init routine, called the first time
+   the interpreter module is used.  I put it here just in case, but I haven't
+   thought of a use for it yet.  I will probably bag it soon, since I don't
+   think it will be necessary. */
+static void
+initialize_interps (void)
+{
+  interpreter_initialized = 1;
+  /* Don't know if anything needs to be done here... */
+}
+
+void
+interpreter_exec_cmd (char *args, int from_tty)
+{
+  struct interp *old_interp, *interp_to_use;
+  char **prules = NULL;
+  char **trule = NULL;
+  unsigned int nrules;
+  unsigned int i;
+  int old_quiet, use_quiet;
+
+  prules = buildargv (args);
+  if (prules == NULL)
+    {
+      error ("unable to parse arguments");
+    }
+
+  nrules = 0;
+  if (prules != NULL)
+    {
+      for (trule = prules; *trule != NULL; trule++)
+	{
+	  nrules++;
+	}
+    }
+
+  if (nrules < 2)
+    error ("usage: interpreter-exec <interpreter> [ <command> ... ]");
+
+  old_interp = current_interpreter;
+
+  interp_to_use = interp_lookup (prules[0]);
+  if (interp_to_use == NULL)
+    error ("Could not find interpreter \"%s\".", prules[0]);
+
+  /* Temporarily set interpreters quiet */
+  old_quiet = interp_set_quiet (old_interp, 1);
+  use_quiet = interp_set_quiet (interp_to_use, 1);
+
+  if (!interp_set (interp_to_use))
+    error ("Could not switch to interpreter \"%s\".", prules[0]);
+
+  for (i = 1; i < nrules; i++)
+    {
+      if (!interp_exec (interp_to_use, prules[i]))
+	{
+	  interp_set (old_interp);
+	  interp_set_quiet (interp_to_use, old_quiet);
+	  error ("error in command: \"%s\".", prules[i]);
+	  break;
+	}
+    }
+
+  interp_set (old_interp);
+  interp_set_quiet (interp_to_use, use_quiet);
+  interp_set_quiet (old_interp, old_quiet);
+}
+
+/* List the possible interpreters which could complete the given text. */
+static char **
+interpreter_completer (char *text, char *word)
+{
+  int alloced = 0;
+  int textlen;
+  int num_matches;
+  char **matches;
+  struct interp *interp;
+
+  /* We expect only a very limited number of interpreters, so just
+     allocate room for all of them. */
+  for (interp = interp_list; interp != NULL; interp = interp->next)
+    ++alloced;
+  matches = (char **) xmalloc (alloced * sizeof (char *));
+
+  num_matches = 0;
+  textlen = strlen (text);
+  for (interp = interp_list; interp != NULL; interp = interp->next)
+    {
+      if (strncmp (interp->name, text, textlen) == 0)
+	{
+	  matches[num_matches] =
+	    (char *) xmalloc (strlen (word) + strlen (interp->name) + 1);
+	  if (word == text)
+	    strcpy (matches[num_matches], interp->name);
+	  else if (word > text)
+	    {
+	      /* Return some portion of interp->name */
+	      strcpy (matches[num_matches], interp->name + (word - text));
+	    }
+	  else
+	    {
+	      /* Return some of text plus interp->name */
+	      strncpy (matches[num_matches], word, text - word);
+	      matches[num_matches][text - word] = '\0';
+	      strcat (matches[num_matches], interp->name);
+	    }
+	  ++num_matches;
+	}
+    }
+
+  if (num_matches == 0)
+    {
+      xfree (matches);
+      matches = NULL;
+    }
+  else if (num_matches < alloced)
+    {
+      matches = (char **) xrealloc ((char *) matches, ((num_matches + 1)
+						       * sizeof (char *)));
+      matches[num_matches] = NULL;
+    }
+
+  return matches;
+}
+
+/* This just adds the "interpreter-exec" command.  */
+void
+_initialize_interpreter (void)
+{
+  struct cmd_list_element *c;
+
+  c = add_cmd ("interpreter-exec", class_support,
+	       interpreter_exec_cmd,
+	       "Execute a command in an interpreter.  It takes two arguments:\n\
+The first argument is the name of the interpreter to use.\n\
+The second argument is the command to execute.\n", &cmdlist);
+  set_cmd_completer (c, interpreter_completer);
+}
diff --git a/gdb/interps.h b/gdb/interps.h
new file mode 100644
index 0000000..21362f4
--- /dev/null
+++ b/gdb/interps.h
@@ -0,0 +1,73 @@
+/* Manages interpreters for GDB, the GNU debugger.
+
+   Copyright 2000, 2002, 2003 Free Software Foundation, Inc.
+
+   Written by Jim Ingham <jingham@apple.com> of Apple Computer, Inc.
+
+   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. */
+
+#ifndef INTERPS_H
+#define INTERPS_H
+
+struct ui_out;
+struct interp;
+
+extern int interp_resume (struct interp *interp);
+extern int interp_suspend (struct interp *interp);
+extern int interp_prompt_p (struct interp *interp);
+extern int interp_exec_p (struct interp *interp);
+extern int interp_exec (struct interp *interp, const char *command);
+extern int interp_quiet_p (struct interp *interp);
+
+typedef void *(interp_init_ftype) (void);
+typedef int (interp_resume_ftype) (void *data);
+typedef int (interp_suspend_ftype) (void *data);
+typedef int (interp_prompt_p_ftype) (void *data);
+typedef int (interp_exec_ftype) (void *data, const char *command);
+typedef int (interp_command_loop_ftype) (void *data);
+
+struct interp_procs
+{
+  interp_init_ftype *init_proc;
+  interp_resume_ftype *resume_proc;
+  interp_suspend_ftype *suspend_proc;
+  interp_exec_ftype *exec_proc;
+  interp_prompt_p_ftype *prompt_proc_p;
+  interp_command_loop_ftype *command_loop_proc;
+};
+
+extern struct interp *interp_new (const char *name, void *data,
+				  struct ui_out *uiout,
+				  const struct interp_procs *procs);
+extern void interp_add (struct interp *interp);
+extern int interp_set (struct interp *interp);
+extern struct interp *interp_lookup (const char *name);
+extern struct ui_out *interp_ui_out (struct interp *interp);
+
+extern int current_interp_named_p (const char *name);
+extern int current_interp_display_prompt_p (void);
+extern void current_interp_command_loop (void);
+
+extern void clear_interpreter_hooks ();
+
+/* well-known interpreters */
+#define INTERP_CONSOLE		"console"
+#define INTERP_MI1             "mi1"
+#define INTERP_MI		"mi"
+
+#endif
diff --git a/gdb/mi/mi-interp.c b/gdb/mi/mi-interp.c
new file mode 100644
index 0000000..bf5873a
--- /dev/null
+++ b/gdb/mi/mi-interp.c
@@ -0,0 +1,412 @@
+/* MI Interpreter Definitions and Commands for GDB, the GNU debugger.
+
+   Copyright 2002, 2003 Free Software Foundation, Inc.
+
+   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 "gdb_string.h"
+#include "interps.h"
+#include "event-top.h"
+#include "event-loop.h"
+#include "inferior.h"
+#include "ui-out.h"
+#include "top.h"
+
+#include "mi-main.h"
+#include "mi-cmds.h"
+#include "mi-out.h"
+#include "mi-console.h"
+
+struct mi_interp
+{
+  /* MI's output channels */
+  struct ui_file *out;
+  struct ui_file *err;
+  struct ui_file *log;
+  struct ui_file *targ;
+  struct ui_file *event_channel;
+
+  /* This is the interpreter for the mi... */
+  struct interp *mi2_interp;
+  struct interp *mi1_interp;
+  struct interp *mi_interp;
+};
+
+/* These are the interpreter setup, etc. functions for the MI interpreter */
+static void mi_execute_command_wrapper (char *cmd);
+static void mi_command_loop (int mi_version);
+static char *mi_input (char *);
+
+/* These are hooks that we put in place while doing interpreter_exec
+   so we can report interesting things that happened "behind the mi's
+   back" in this command */
+static int mi_interp_query_hook (const char *ctlstr, va_list ap);
+static char *mi_interp_read_one_line_hook (char *prompt, int repeat,
+					   char *anno);
+
+static void mi2_command_loop (void);
+static void mi1_command_loop (void);
+
+static void mi_insert_notify_hooks (void);
+static void mi_remove_notify_hooks (void);
+
+static void *
+mi_interpreter_init (void)
+{
+  struct mi_interp *mi = XMALLOC (struct mi_interp);
+
+  /* Why is this a part of the mi architecture? */
+
+  mi_setup_architecture_data ();
+
+  /* HACK: We need to force stdout/stderr to point at the console.  This avoids
+     any potential side effects caused by legacy code that is still
+     using the TUI / fputs_unfiltered_hook.  So we set up output channels for
+     this now, and swap them in when we are run. */
+
+  raw_stdout = stdio_fileopen (stdout);
+
+  /* Create MI channels */
+  mi->out = mi_console_file_new (raw_stdout, "~", '"');
+  mi->err = mi_console_file_new (raw_stdout, "&", '"');
+  mi->log = mi->err;
+  mi->targ = mi_console_file_new (raw_stdout, "@", '"');
+  mi->event_channel = mi_console_file_new (raw_stdout, "=", 0);
+
+  return mi;
+}
+
+static int
+mi_interpreter_resume (void *data)
+{
+  struct mi_interp *mi = data;
+  /* As per hack note in mi_interpreter_init, swap in the output channels... */
+
+  gdb_setup_readline ();
+
+  if (event_loop_p)
+    {
+      /* These overwrite some of the initialization done in
+         _intialize_event_loop. */
+      call_readline = gdb_readline2;
+      input_handler = mi_execute_command_wrapper;
+      add_file_handler (input_fd, stdin_event_handler, 0);
+      async_command_editing_p = 0;
+      /* FIXME: This is a total hack for now.  PB's use of the MI implicitly
+         relies on a bug in the async support which allows asynchronous
+         commands to leak through the commmand loop.  The bug involves
+         (but is not limited to) the fact that sync_execution was
+         erroneously initialized to 0.  Duplicate by initializing it
+         thus here... */
+      sync_execution = 0;
+    }
+
+  gdb_stdout = mi->out;
+  /* Route error and log output through the MI */
+  gdb_stderr = mi->err;
+  gdb_stdlog = mi->log;
+  /* Route target output through the MI. */
+  gdb_stdtarg = mi->targ;
+
+  /* Replace all the hooks that we know about.  There really needs to
+     be a better way of doing this... */
+  clear_interpreter_hooks ();
+
+  show_load_progress = mi_load_progress;
+
+  /* If we're _the_ interpreter, take control. */
+  if (current_interp_named_p (INTERP_MI1))
+    command_loop_hook = mi1_command_loop;
+  else if (current_interp_named_p (INTERP_MI))
+    command_loop_hook = mi2_command_loop;
+  else
+    return 0;
+
+  return 1;
+}
+
+static int
+mi_interpreter_suspend (void *data)
+{
+  gdb_disable_readline ();
+  return 1;
+}
+
+static int
+mi_interpreter_exec (void *data, const char *command)
+{
+  char *tmp = alloca (strlen (command) + 1);
+  strcpy (tmp, command);
+  mi_execute_command_wrapper (tmp);
+  return 1;
+}
+
+/* Never display the default gdb prompt in mi case.  */
+static int
+mi_interpreter_prompt_p (void *data)
+{
+  return 0;
+}
+
+static void
+mi_interpreter_exec_continuation (struct continuation_arg *arg)
+{
+  bpstat_do_actions (&stop_bpstat);
+  if (!target_executing)
+    {
+      fputs_unfiltered ("*stopped", raw_stdout);
+      mi_out_put (uiout, raw_stdout);
+      fputs_unfiltered ("\n", raw_stdout);
+      fputs_unfiltered ("(gdb) \n", raw_stdout);
+      gdb_flush (raw_stdout);
+      do_exec_cleanups (ALL_CLEANUPS);
+    }
+  else if (target_can_async_p ())
+    {
+      add_continuation (mi_interpreter_exec_continuation, NULL);
+    }
+}
+
+enum mi_cmd_result
+mi_cmd_interpreter_exec (char *command, char **argv, int argc)
+{
+  struct interp *interp_to_use;
+  enum mi_cmd_result result = MI_CMD_DONE;
+  int i;
+  struct interp_procs *procs;
+
+  if (argc < 2)
+    {
+      xasprintf (&mi_error_message,
+		 "mi_cmd_interpreter_exec: Usage: -interpreter-exec interp command");
+      return MI_CMD_ERROR;
+    }
+
+  interp_to_use = interp_lookup (argv[0]);
+  if (interp_to_use == NULL)
+    {
+      xasprintf (&mi_error_message,
+		 "mi_cmd_interpreter_exec: could not find interpreter \"%s\"",
+		 argv[0]);
+      return MI_CMD_ERROR;
+    }
+
+  if (!interp_exec_p (interp_to_use))
+    {
+      xasprintf (&mi_error_message,
+		 "mi_cmd_interpreter_exec: interpreter \"%s\" does not support command execution",
+		 argv[0]);
+      return MI_CMD_ERROR;
+    }
+
+  /* Insert the MI out hooks, making sure to also call the interpreter's hooks
+     if it has any. */
+  /* KRS: We shouldn't need this... Events should be installed and they should
+     just ALWAYS fire something out down the MI channel... */
+  mi_insert_notify_hooks ();
+
+  /* Now run the code... */
+
+  for (i = 1; i < argc; i++)
+    {
+      char *buff = NULL;
+      /* Do this in a cleaner way...  We want to force execution to be
+         asynchronous for commands that run the target.  */
+      if (target_can_async_p () && (strcmp (argv[0], "console") == 0))
+	{
+	  int len = strlen (argv[i]);
+	  buff = xmalloc (len + 2);
+	  memcpy (buff, argv[i], len);
+	  buff[len] = '&';
+	  buff[len + 1] = '\0';
+	}
+
+      /* We had to set sync_execution = 0 for the mi (well really for Project
+         Builder's use of the mi - particularly so interrupting would work.
+         But for console commands to work, we need to initialize it to 1 -
+         since that is what the cli expects - before running the command,
+         and then set it back to 0 when we are done. */
+      sync_execution = 1;
+      if (interp_exec (interp_to_use, argv[i]) < 0)
+	{
+	  mi_error_last_message ();
+	  result = MI_CMD_ERROR;
+	  break;
+	}
+      xfree (buff);
+      do_exec_error_cleanups (ALL_CLEANUPS);
+      sync_execution = 0;
+    }
+
+  mi_remove_notify_hooks ();
+
+  /* Okay, now let's see if the command set the inferior going...
+     Tricky point - have to do this AFTER resetting the interpreter, since
+     changing the interpreter will clear out all the continuations for
+     that interpreter... */
+
+  if (target_can_async_p () && target_executing)
+    {
+      fputs_unfiltered ("^running\n", raw_stdout);
+      add_continuation (mi_interpreter_exec_continuation, NULL);
+    }
+
+  return result;
+}
+
+/*
+ * mi_insert_notify_hooks - This inserts a number of hooks that are meant to produce
+ * async-notify ("=") MI messages while running commands in another interpreter
+ * using mi_interpreter_exec.  The canonical use for this is to allow access to
+ * the gdb CLI interpreter from within the MI, while still producing MI style output
+ * when actions in the CLI command change gdb's state.
+*/
+
+static void
+mi_insert_notify_hooks (void)
+{
+  query_hook = mi_interp_query_hook;
+}
+
+static void
+mi_remove_notify_hooks ()
+{
+  query_hook = NULL;
+}
+
+static int
+mi_interp_query_hook (const char *ctlstr, va_list ap)
+{
+  return 1;
+}
+
+static char *
+mi_interp_read_one_line_hook (char *prompt, int repeat, char *anno)
+{
+  static char buff[256];
+  printf_unfiltered ("=read-one-line,prompt=\"%s\"\n", prompt);
+  gdb_flush (gdb_stdout);
+  (void) fgets (buff, sizeof (buff), stdin);
+  buff[(strlen (buff) - 1)] = 0;
+  return buff;
+}
+
+static void
+output_control_change_notification (char *notification)
+{
+  printf_unfiltered ("^");
+  printf_unfiltered ("%s\n", notification);
+  gdb_flush (gdb_stdout);
+}
+
+static void
+mi_execute_command_wrapper (char *cmd)
+{
+  mi_execute_command (cmd, stdin == instream);
+}
+
+static void
+mi1_command_loop (void)
+{
+  mi_command_loop (1);
+}
+
+static void
+mi2_command_loop (void)
+{
+  mi_command_loop (2);
+}
+
+static void
+mi_command_loop (int mi_version)
+{
+#if 0
+  /* HACK: Force stdout/stderr to point at the console.  This avoids
+     any potential side effects caused by legacy code that is still
+     using the TUI / fputs_unfiltered_hook */
+  raw_stdout = stdio_fileopen (stdout);
+  /* Route normal output through the MIx */
+  gdb_stdout = mi_console_file_new (raw_stdout, "~", '"');
+  /* Route error and log output through the MI */
+  gdb_stderr = mi_console_file_new (raw_stdout, "&", '"');
+  gdb_stdlog = gdb_stderr;
+  /* Route target output through the MI. */
+  gdb_stdtarg = mi_console_file_new (raw_stdout, "@", '"');
+  /* HACK: Poke the ui_out table directly.  Should we be creating a
+     mi_out object wired up to the above gdb_stdout / gdb_stderr? */
+  uiout = mi_out_new (mi_version);
+  /* HACK: Override any other interpreter hooks.  We need to create a
+     real event table and pass in that. */
+  init_ui_hook = 0;
+  /* command_loop_hook = 0; */
+  print_frame_info_listing_hook = 0;
+  query_hook = 0;
+  warning_hook = 0;
+  create_breakpoint_hook = 0;
+  delete_breakpoint_hook = 0;
+  modify_breakpoint_hook = 0;
+  interactive_hook = 0;
+  registers_changed_hook = 0;
+  readline_begin_hook = 0;
+  readline_hook = 0;
+  readline_end_hook = 0;
+  register_changed_hook = 0;
+  memory_changed_hook = 0;
+  context_hook = 0;
+  target_wait_hook = 0;
+  call_command_hook = 0;
+  error_hook = 0;
+  error_begin_hook = 0;
+  show_load_progress = mi_load_progress;
+#endif
+  /* Turn off 8 bit strings in quoted output.  Any character with the
+     high bit set is printed using C's octal format. */
+  sevenbit_strings = 1;
+  /* Tell the world that we're alive */
+  fputs_unfiltered ("(gdb) \n", raw_stdout);
+  gdb_flush (raw_stdout);
+  if (!event_loop_p)
+    simplified_command_loop (mi_input, mi_execute_command);
+  else
+    start_event_loop ();
+}
+
+static char *
+mi_input (char *buf)
+{
+  return gdb_readline (NULL);
+}
+
+void
+_initialize_mi_interp (void)
+{
+  static const struct interp_procs procs =
+  {
+    mi_interpreter_init,	/* init_proc */
+    mi_interpreter_resume,	/* resume_proc */
+    mi_interpreter_suspend,	/* suspend_proc */
+    mi_interpreter_exec,	/* exec_proc */
+    mi_interpreter_prompt_p	/* prompt_proc_p */
+  };
+
+  /* Create MI1 interpreter */
+  interp_add (interp_new (INTERP_MI1, NULL, mi_out_new (1), &procs));
+
+  interp_add (interp_new (INTERP_MI, NULL, mi_out_new (3), &procs));
+}
diff --git a/gdb/mi/mi-main.h b/gdb/mi/mi-main.h
new file mode 100644
index 0000000..8e504c6
--- /dev/null
+++ b/gdb/mi/mi-main.h
@@ -0,0 +1,33 @@
+/* MI Internal Functions for GDB, the GNU debugger.
+
+   Copyright 2003 Free Software Foundation, Inc.
+
+   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.  */
+
+#ifndef MI_MAIN_H
+#define MI_MAIN_H
+
+extern void mi_setup_architecture_data (void);
+
+extern void mi_load_progress (const char *section_name,
+			      unsigned long sent_so_far,
+			      unsigned long total_section,
+			      unsigned long total_sent,
+			      unsigned long grand_total);
+#endif
+