/* Manages interpreters for GDB, the GNU debugger.
- Copyright (C) 2000, 2002, 2003, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2014 Free Software Foundation, Inc.
Written by Jim Ingham <jingham@apple.com> of Apple Computer, Inc.
#include "event-top.h"
#include "interps.h"
#include "completer.h"
-#include "gdb_string.h"
+#include <string.h>
#include "gdb_assert.h"
#include "top.h" /* For command_loop. */
#include "exceptions.h"
#include "continuations.h"
+/* True if the current interpreter in is async mode. See interps.h
+ for more details. This starts out disabled, until all the explicit
+ command line arguments (e.g., `gdb -ex "start" -ex "next"') are
+ processed. */
+int interpreter_async = 0;
+
struct interp
{
/* This is the name in "-i=" and set interpreter. */
/* 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 (struct cmd_list_element *cmd,
- char *text, char *word);
/* The magic initialization routine for this module. */
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)
+interp_new (const char *name, const struct interp_procs *procs)
{
struct interp *new_interp;
- new_interp = XMALLOC (struct interp);
+ new_interp = XNEW (struct interp);
new_interp->name = xstrdup (name);
- new_interp->data = data;
- new_interp->interpreter_out = uiout;
+ new_interp->data = NULL;
new_interp->quiet_p = 0;
new_interp->procs = procs;
new_interp->inited = 0;
+ /* Check for required procs. */
+ gdb_assert (procs->command_loop_proc != NULL);
+
return new_interp;
}
interpreter_p = xstrdup (current_interpreter->name);
}
- current_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 (top_level);
+ interp->data = interp->procs->init_proc (interp, top_level);
}
interp->inited = 1;
}
+ /* Do this only after the interpreter is initialized. */
+ current_uiout = interp->procs->ui_out_proc (interp);
+
/* Clear out any installed interpreter hooks/event handlers. */
clear_interpreter_hooks ();
{
if (!interp_quiet_p (interp))
{
- sprintf (buffer, "Switching to interpreter \"%.24s\".\n",
- interp->name);
+ xsnprintf (buffer, sizeof (buffer),
+ "Switching to interpreter \"%.24s\".\n", interp->name);
ui_out_text (current_uiout, buffer);
}
display_gdb_prompt (NULL);
interp_ui_out (struct interp *interp)
{
if (interp != NULL)
- return interp->interpreter_out;
+ return interp->procs->ui_out_proc (interp);
+
+ return current_interpreter->procs->ui_out_proc (current_interpreter);
+}
+
+int
+current_interp_set_logging (int start_log, struct ui_file *out,
+ struct ui_file *logfile)
+{
+ if (current_interpreter == NULL
+ || current_interpreter->procs->set_logging_proc == NULL)
+ return 0;
+
+ return current_interpreter->procs->set_logging_proc (current_interpreter,
+ start_log, out,
+ logfile);
+}
+
+/* Temporarily overrides the current interpreter. */
+struct interp *
+interp_set_temp (const char *name)
+{
+ struct interp *interp = interp_lookup (name);
+ struct interp *old_interp = current_interpreter;
+
+ if (interp)
+ current_interpreter = interp;
+ return old_interp;
+}
+
+/* Returns the interpreter's cookie. */
- return current_interpreter->interpreter_out;
+void *
+interp_data (struct interp *interp)
+{
+ return interp->data;
+}
+
+/* Returns the interpreter's name. */
+
+const char *
+interp_name (struct interp *interp)
+{
+ return interp->name;
}
/* Returns true if the current interp is the passed in name. */
void
current_interp_command_loop (void)
{
- /* Somewhat messy. For the moment prop up all the old ways of
- 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
- cli_command_loop ();
+ gdb_assert (current_interpreter != NULL);
+
+ current_interpreter->procs->command_loop_proc (current_interpreter->data);
}
int
/* interp_exec - This executes COMMAND_STR in the current
interpreter. */
-int
-interp_exec_p (struct interp *interp)
-{
- return interp->procs->exec_proc != NULL;
-}
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 exception_none;
+ gdb_assert (interp->procs->exec_proc != NULL);
+
+ return interp->procs->exec_proc (interp->data, command_str);
}
/* A convenience routine that nulls out all the common command hooks.
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
unsigned int nrules;
unsigned int i;
int old_quiet, use_quiet;
+ struct cleanup *cleanup;
if (args == NULL)
error_no_arg (_("interpreter-exec command"));
prules = gdb_buildargv (args);
- make_cleanup_freeargv (prules);
+ cleanup = make_cleanup_freeargv (prules);
nrules = 0;
for (trule = prules; *trule != NULL; trule++)
interp_set (old_interp, 0);
interp_set_quiet (interp_to_use, use_quiet);
interp_set_quiet (old_interp, old_quiet);
+
+ do_cleanups (cleanup);
}
/* List the possible interpreters which could complete the given text. */
-static char **
-interpreter_completer (struct cmd_list_element *ignore, char *text, char *word)
+static VEC (char_ptr) *
+interpreter_completer (struct cmd_list_element *ignore,
+ const char *text, const char *word)
{
- int alloced = 0;
int textlen;
- int num_matches;
- char **matches;
+ VEC (char_ptr) *matches = NULL;
struct interp *interp;
- /* We expect only a very limited number of interpreters, so just
- 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 **) xcalloc (alloced + 1, 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);
+ char *match;
+
+ match = (char *) xmalloc (strlen (word) + strlen (interp->name) + 1);
if (word == text)
- strcpy (matches[num_matches], interp->name);
+ strcpy (match, interp->name);
else if (word > text)
{
/* Return some portion of interp->name. */
- strcpy (matches[num_matches], interp->name + (word - text));
+ strcpy (match, 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);
+ strncpy (match, word, text - word);
+ match[text - word] = '\0';
+ strcat (match, interp->name);
}
- ++num_matches;
+ VEC_safe_push (char_ptr, matches, match);
}
}
- if (num_matches == 0)
- {
- xfree (matches);
- matches = NULL;
- }
-
return matches;
}
projects / deliverable / binutils-gdb.git / blobdiff