/* Manages interpreters for GDB, the GNU debugger.
- Copyright (C) 2000-2013 Free Software Foundation, Inc.
+ Copyright (C) 2000-2015 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 "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
int quiet_p;
};
-/* Functions local to this file. */
-static void initialize_interps (void);
-
/* The magic initialization routine for this module. */
void _initialize_interpreter (void);
static struct interp *current_interpreter = NULL;
static struct interp *top_level_interpreter_ptr = 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 *new_interp;
- new_interp = XMALLOC (struct interp);
+ new_interp = XNEW (struct interp);
new_interp->name = xstrdup (name);
new_interp->data = NULL;
new_interp->procs = procs;
new_interp->inited = 0;
+ /* Check for required procs. */
+ gdb_assert (procs->command_loop_proc != NULL);
+
return new_interp;
}
void
interp_add (struct interp *interp)
{
- if (!interpreter_initialized)
- initialize_interps ();
-
gdb_assert (interp_lookup (interp->name) == NULL);
interp->next = interp_list;
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 (!first_time && !interp_quiet_p (interp))
{
- if (!interp_quiet_p (interp))
- {
- xsnprintf (buffer, sizeof (buffer),
- "Switching to interpreter \"%.24s\".\n", interp->name);
- ui_out_text (current_uiout, buffer);
- }
- display_gdb_prompt (NULL);
+ xsnprintf (buffer, sizeof (buffer),
+ "Switching to interpreter \"%.24s\".\n", interp->name);
+ ui_out_text (current_uiout, buffer);
}
return 1;
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)
+/* The interpreter that is active while `interp_exec' is active, NULL
+ at all other times. */
+static struct interp *command_interpreter;
+
+/* The interpreter that was active when a command was executed.
+ Normally that'd always be CURRENT_INTERPRETER, except that MI's
+ -interpreter-exec command doesn't actually flip the current
+ interpreter when running its sub-command. The
+ `command_interpreter' global tracks when interp_exec is called
+ (IOW, when -interpreter-exec is called). If that is set, it is
+ INTERP in '-interpreter-exec INTERP "CMD"' or in 'interpreter-exec
+ INTERP "CMD". Otherwise, interp_exec isn't active, and so the
+ interpreter running the command is the current interpreter. */
+
+struct interp *
+command_interp (void)
{
- if (current_interpreter == NULL
- || current_interpreter->procs->prompt_proc_p == NULL)
- return 0;
+ if (command_interpreter != NULL)
+ return command_interpreter;
else
- return current_interpreter->procs->prompt_proc_p (current_interpreter->
- data);
+ return current_interpreter;
}
/* 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. `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;
+ struct gdb_exception ex;
+ struct interp *save_command_interp;
+
+ gdb_assert (interp->procs->exec_proc != NULL);
+
+ /* See `command_interp' for why we do this. */
+ save_command_interp = command_interpreter;
+ command_interpreter = interp;
+
+ ex = interp->procs->exec_proc (interp->data, command_str);
+
+ command_interpreter = save_command_interp;
+
+ return ex;
}
/* A convenience routine that nulls out all the common command hooks.
void
clear_interpreter_hooks (void)
{
- deprecated_init_ui_hook = 0;
deprecated_print_frame_info_listing_hook = 0;
/*print_frame_more_info_hook = 0; */
deprecated_query_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. */
-static void
-initialize_interps (void)
-{
- interpreter_initialized = 1;
- /* Don't know if anything needs to be done here... */
}
static void
projects / deliverable / binutils-gdb.git / blobdiff