/* Manages interpreters for GDB, the GNU debugger.
- Copyright 2000, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2002, 2003, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
Written by Jim Ingham <jingham@apple.com> of Apple Computer, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* This is just a first cut at separating out the "interpreter"
functions of gdb into self-contained modules. There are a couple
#include "interps.h"
#include "completer.h"
#include "gdb_string.h"
-#include "gdb-events.h"
#include "gdb_assert.h"
#include "top.h" /* For command_loop. */
+#include "exceptions.h"
struct interp
{
/* Functions local to this file. */
static void initialize_interps (void);
-static char **interpreter_completer (char *text, char *word);
+static char **interpreter_completer (struct cmd_list_element *cmd,
+ char *text, char *word);
/* The magic initialization routine for this module. */
static struct interp *interp_list = NULL;
static struct interp *current_interpreter = NULL;
+static struct interp *top_level_interpreter_ptr = NULL;
static int interpreter_initialized = 0;
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. */
+ pretty bad shape at this point.
+
+ The TOP_LEVEL parameter tells if this new interpreter is
+ the top-level one. The top-level is what is requested
+ on the command line, and is responsible for reporting general
+ notification about target state changes. For example, if
+ MI is the top-level interpreter, then it will always report
+ events such as target stops and new thread creation, even if they
+ are caused by CLI commands. */
int
-interp_set (struct interp *interp)
+interp_set (struct interp *interp, int top_level)
{
struct interp *old_interp = current_interpreter;
int first_time = 0;
-
-
char buffer[64];
+ /* If we already have an interpreter, then trying to
+ set top level interpreter is kinda pointless. */
+ gdb_assert (!top_level || !current_interpreter);
+ gdb_assert (!top_level || !top_level_interpreter_ptr);
+
if (current_interpreter != NULL)
{
do_all_continuations ();
&& !current_interpreter->procs->suspend_proc (current_interpreter->
data))
{
- error ("Could not suspend interpreter \"%s\"\n",
+ error (_("Could not suspend interpreter \"%s\"."),
current_interpreter->name);
}
}
}
current_interpreter = interp;
+ if (top_level)
+ top_level_interpreter_ptr = 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 (interp->procs->init_proc != NULL)
{
- interp->data = interp->procs->init_proc ();
+ interp->data = interp->procs->init_proc (top_level);
}
interp->inited = 1;
}
- /* Clear out any installed interpreter hooks/event handlers. */
+ /* 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))
+ if (old_interp == NULL || !interp_set (old_interp, 0))
internal_error (__FILE__, __LINE__,
- "Failed to initialize new interp \"%s\" %s",
+ _("Failed to initialize new interp \"%s\" %s"),
interp->name, "and could not restore old interp!\n");
return 0;
}
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 ();
+ selecting the command loop. `deprecated_command_loop_hook'
+ should be deprecated. */
+ if (deprecated_command_loop_hook != NULL)
+ deprecated_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 if (event_loop_p)
- cli_command_loop ();
else
- command_loop ();
+ cli_command_loop ();
}
int
return current_interpreter->quiet_p;
}
-int
+static int
interp_set_quiet (struct interp *interp, int quiet)
{
int old_val = interp->quiet_p;
return interp->procs->exec_proc != NULL;
}
-int
+struct gdb_exception
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;
+ return exception_none;
}
-/* A convenience routine that nulls out all the
- common command hooks. Use it when removing your interpreter in its
- suspend proc. */
+/* 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 (void)
{
- init_ui_hook = 0;
- print_frame_info_listing_hook = 0;
+ deprecated_init_ui_hook = 0;
+ deprecated_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 ();
+ deprecated_query_hook = 0;
+ deprecated_warning_hook = 0;
+ deprecated_interactive_hook = 0;
+ deprecated_readline_begin_hook = 0;
+ deprecated_readline_hook = 0;
+ deprecated_readline_end_hook = 0;
+ deprecated_register_changed_hook = 0;
+ deprecated_context_hook = 0;
+ deprecated_target_wait_hook = 0;
+ deprecated_call_command_hook = 0;
+ deprecated_error_begin_hook = 0;
+ deprecated_command_loop_hook = 0;
}
-/* 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. */
+/* 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)
{
/* Don't know if anything needs to be done here... */
}
-void
+static void
interpreter_exec_cmd (char *args, int from_tty)
{
struct interp *old_interp, *interp_to_use;
unsigned int i;
int old_quiet, use_quiet;
- prules = buildargv (args);
- if (prules == NULL)
- {
- error ("unable to parse arguments");
- }
+ if (args == NULL)
+ error_no_arg (_("interpreter-exec command"));
+
+ prules = gdb_buildargv (args);
+ make_cleanup_freeargv (prules);
nrules = 0;
- if (prules != NULL)
- {
- for (trule = prules; *trule != NULL; trule++)
- {
- nrules++;
- }
- }
+ for (trule = prules; *trule != NULL; trule++)
+ nrules++;
if (nrules < 2)
- error ("usage: interpreter-exec <interpreter> [ <command> ... ]");
+ 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]);
+ 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]);
+ if (!interp_set (interp_to_use, 0))
+ error (_("Could not switch to interpreter \"%s\"."), prules[0]);
for (i = 1; i < nrules; i++)
{
- if (!interp_exec (interp_to_use, prules[i]))
+ struct gdb_exception e = interp_exec (interp_to_use, prules[i]);
+ if (e.reason < 0)
{
- interp_set (old_interp);
- interp_set_quiet (interp_to_use, old_quiet);
- error ("error in command: \"%s\".", prules[i]);
- break;
+ interp_set (old_interp, 0);
+ interp_set_quiet (interp_to_use, use_quiet);
+ interp_set_quiet (old_interp, old_quiet);
+ error (_("error in command: \"%s\"."), prules[i]);
}
}
- interp_set (old_interp);
+ interp_set (old_interp, 0);
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)
+interpreter_completer (struct cmd_list_element *ignore, char *text, char *word)
{
int alloced = 0;
int textlen;
struct interp *interp;
/* We expect only a very limited number of interpreters, so just
- allocate room for all of them. */
+ allocate room for all of them plus one for the last that must be NULL
+ to correctly end the list. */
for (interp = interp_list; interp != NULL; interp = interp->next)
++alloced;
- matches = (char **) xmalloc (alloced * sizeof (char *));
+ matches = (char **) xcalloc (alloced + 1, sizeof (char *));
num_matches = 0;
textlen = strlen (text);
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;
}
+struct interp *
+top_level_interpreter (void)
+{
+ return top_level_interpreter_ptr;
+}
+
+void *
+top_level_interpreter_data (void)
+{
+ gdb_assert (top_level_interpreter_ptr);
+ return top_level_interpreter_ptr->data;
+}
+
/* 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\
+ 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);
+The second argument is the command to execute.\n"), &cmdlist);
set_cmd_completer (c, interpreter_completer);
}
projects / external / binutils.git / blobdiff