/* MI Interpreter Definitions and Commands for GDB, the GNU debugger.
- Copyright 2002, 2003, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+ 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
+ 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/>. */
#include "defs.h"
#include "gdb_string.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;
-};
+#include "mi-common.h"
+#include "observer.h"
+#include "gdbthread.h"
+#include "solist.h"
/* These are the interpreter setup, etc. functions for the MI interpreter */
static void mi_execute_command_wrapper (char *cmd);
/* 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 int mi_interp_query_hook (const char *ctlstr, va_list ap)
+ ATTRIBUTE_PRINTF (1, 0);
static void mi3_command_loop (void);
static void mi2_command_loop (void);
static void mi_insert_notify_hooks (void);
static void mi_remove_notify_hooks (void);
+static void mi_on_normal_stop (struct bpstats *bs, int print_frame);
+
+static void mi_new_thread (struct thread_info *t);
+static void mi_thread_exit (struct thread_info *t, int silent);
+static void mi_inferior_added (struct inferior *inf);
+static void mi_inferior_appeared (struct inferior *inf);
+static void mi_inferior_exit (struct inferior *inf);
+static void mi_inferior_removed (struct inferior *inf);
+static void mi_on_resume (ptid_t ptid);
+static void mi_solib_loaded (struct so_list *solib);
+static void mi_solib_unloaded (struct so_list *solib);
+static void mi_about_to_proceed (void);
+
+static int report_initial_inferior (struct inferior *inf, void *closure);
static void *
-mi_interpreter_init (void)
+mi_interpreter_init (int top_level)
{
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
mi->targ = mi_console_file_new (raw_stdout, "@", '"');
mi->event_channel = mi_console_file_new (raw_stdout, "=", 0);
+ if (top_level)
+ {
+ observer_attach_new_thread (mi_new_thread);
+ observer_attach_thread_exit (mi_thread_exit);
+ observer_attach_inferior_added (mi_inferior_added);
+ observer_attach_inferior_appeared (mi_inferior_appeared);
+ observer_attach_inferior_exit (mi_inferior_exit);
+ observer_attach_inferior_removed (mi_inferior_removed);
+ observer_attach_normal_stop (mi_on_normal_stop);
+ observer_attach_target_resumed (mi_on_resume);
+ observer_attach_solib_loaded (mi_solib_loaded);
+ observer_attach_solib_unloaded (mi_solib_unloaded);
+ observer_attach_about_to_proceed (mi_about_to_proceed);
+
+ /* The initial inferior is created before this function is called, so we
+ need to report it explicitly. Use iteration in case future version
+ of GDB creates more than one inferior up-front. */
+ iterate_over_inferiors (report_initial_inferior, mi);
+ }
+
return mi;
}
gdb_stdlog = mi->log;
/* Route target output through the MI. */
gdb_stdtarg = mi->targ;
+ /* Route target error through the MI as well. */
+ gdb_stdtargerr = mi->targ;
/* Replace all the hooks that we know about. There really needs to
be a better way of doing this... */
return 1;
}
-static struct exception
+static struct gdb_exception
mi_interpreter_exec (void *data, const char *command)
{
- static struct exception ok;
char *tmp = alloca (strlen (command) + 1);
strcpy (tmp, command);
mi_execute_command_wrapper (tmp);
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
+void
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;
+ char *mi_error_message = NULL;
+ struct cleanup *old_chain;
if (argc < 2)
- {
- mi_error_message = xstrprintf ("mi_cmd_interpreter_exec: Usage: -interpreter-exec interp command");
- return MI_CMD_ERROR;
- }
+ error ("mi_cmd_interpreter_exec: Usage: -interpreter-exec interp command");
interp_to_use = interp_lookup (argv[0]);
if (interp_to_use == NULL)
- {
- mi_error_message = xstrprintf ("mi_cmd_interpreter_exec: could not find interpreter \"%s\"", argv[0]);
- return MI_CMD_ERROR;
- }
+ error ("mi_cmd_interpreter_exec: could not find interpreter \"%s\"", argv[0]);
if (!interp_exec_p (interp_to_use))
- {
- mi_error_message = xstrprintf ("mi_cmd_interpreter_exec: interpreter \"%s\" does not support command execution",
- argv[0]);
- return MI_CMD_ERROR;
- }
+ error ("mi_cmd_interpreter_exec: interpreter \"%s\" does not support command execution",
+ argv[0]);
/* Insert the MI out hooks, making sure to also call the interpreter's hooks
if it has any. */
/* Now run the code... */
+ old_chain = make_cleanup (null_cleanup, 0);
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))
+ struct gdb_exception e = interp_exec (interp_to_use, argv[i]);
+ if (e.reason < 0)
{
- int len = strlen (argv[i]);
- buff = xmalloc (len + 2);
- memcpy (buff, argv[i], len);
- buff[len] = '&';
- buff[len + 1] = '\0';
+ mi_error_message = xstrdup (e.message);
+ make_cleanup (xfree, mi_error_message);
+ break;
}
-
- /* 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;
- {
- struct exception e = interp_exec (interp_to_use, argv[i]);
- if (e.reason < 0)
- {
- mi_error_message = e.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;
+ if (mi_error_message != NULL)
+ error ("%s", mi_error_message);
+ do_cleanups (old_chain);
}
/*
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. */
- deprecated_init_ui_hook = 0;
- /* deprecated_command_loop_hook = 0; */
- deprecated_print_frame_info_listing_hook = 0;
- deprecated_query_hook = 0;
- deprecated_warning_hook = 0;
- deprecated_create_breakpoint_hook = 0;
- deprecated_delete_breakpoint_hook = 0;
- deprecated_modify_breakpoint_hook = 0;
- deprecated_interactive_hook = 0;
- deprecated_registers_changed_hook = 0;
- deprecated_readline_begin_hook = 0;
- deprecated_readline_hook = 0;
- deprecated_readline_end_hook = 0;
- deprecated_register_changed_hook = 0;
- deprecated_memory_changed_hook = 0;
- deprecated_context_hook = 0;
- deprecated_target_wait_hook = 0;
- deprecated_call_command_hook = 0;
- deprecated_error_hook = 0;
- deprecated_error_begin_hook = 0;
- deprecated_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;
start_event_loop ();
}
+static void
+mi_new_thread (struct thread_info *t)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ struct inferior *inf = find_inferior_pid (ptid_get_pid (t->ptid));
+
+ gdb_assert (inf);
+
+ fprintf_unfiltered (mi->event_channel,
+ "thread-created,id=\"%d\",group-id=\"i%d\"",
+ t->num, inf->num);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_thread_exit (struct thread_info *t, int silent)
+{
+ struct mi_interp *mi;
+ struct inferior *inf;
+
+ if (silent)
+ return;
+
+ inf = find_inferior_pid (ptid_get_pid (t->ptid));
+
+ mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel,
+ "thread-exited,id=\"%d\",group-id=\"i%d\"",
+ t->num, inf->num);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_inferior_added (struct inferior *inf)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel,
+ "thread-group-added,id=\"i%d\"",
+ inf->num);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_inferior_appeared (struct inferior *inf)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel,
+ "thread-group-started,id=\"i%d\",pid=\"%d\"",
+ inf->num, inf->pid);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_inferior_exit (struct inferior *inf)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel, "thread-group-exited,id=\"i%d\"",
+ inf->num);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_inferior_removed (struct inferior *inf)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel,
+ "thread-group-removed,id=\"i%d\"",
+ inf->num);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_on_normal_stop (struct bpstats *bs, int print_frame)
+{
+ /* Since this can be called when CLI command is executing,
+ using cli interpreter, be sure to use MI uiout for output,
+ not the current one. */
+ struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
+
+ if (print_frame)
+ {
+ int core;
+ if (uiout != mi_uiout)
+ {
+ /* The normal_stop function has printed frame information into
+ CLI uiout, or some other non-MI uiout. There's no way we
+ can extract proper fields from random uiout object, so we print
+ the frame again. In practice, this can only happen when running
+ a CLI command in MI. */
+ struct ui_out *saved_uiout = uiout;
+ uiout = mi_uiout;
+ print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC);
+ uiout = saved_uiout;
+ }
+
+ ui_out_field_int (mi_uiout, "thread-id",
+ pid_to_thread_id (inferior_ptid));
+ if (non_stop)
+ {
+ struct cleanup *back_to = make_cleanup_ui_out_list_begin_end
+ (mi_uiout, "stopped-threads");
+ ui_out_field_int (mi_uiout, NULL,
+ pid_to_thread_id (inferior_ptid));
+ do_cleanups (back_to);
+ }
+ else
+ ui_out_field_string (mi_uiout, "stopped-threads", "all");
+
+ core = target_core_of_thread (inferior_ptid);
+ if (core != -1)
+ ui_out_field_int (mi_uiout, "core", core);
+ }
+
+ fputs_unfiltered ("*stopped", raw_stdout);
+ mi_out_put (mi_uiout, raw_stdout);
+ mi_out_rewind (mi_uiout);
+ mi_print_timing_maybe ();
+ fputs_unfiltered ("\n", raw_stdout);
+ gdb_flush (raw_stdout);
+}
+
+static void
+mi_about_to_proceed (void)
+{
+ /* Suppress output while calling an inferior function. */
+
+ if (!ptid_equal (inferior_ptid, null_ptid))
+ {
+ struct thread_info *tp = inferior_thread ();
+ if (tp->in_infcall)
+ return;
+ }
+
+ mi_proceeded = 1;
+}
+
+static int
+mi_output_running_pid (struct thread_info *info, void *arg)
+{
+ ptid_t *ptid = arg;
+
+ if (ptid_get_pid (*ptid) == ptid_get_pid (info->ptid))
+ fprintf_unfiltered (raw_stdout,
+ "*running,thread-id=\"%d\"\n",
+ info->num);
+
+ return 0;
+}
+
+static int
+mi_inferior_count (struct inferior *inf, void *arg)
+{
+ if (inf->pid != 0)
+ {
+ int *count_p = arg;
+ (*count_p)++;
+ }
+
+ return 0;
+}
+
+static void
+mi_on_resume (ptid_t ptid)
+{
+ struct thread_info *tp = NULL;
+
+ if (ptid_equal (ptid, minus_one_ptid) || ptid_is_pid (ptid))
+ tp = inferior_thread ();
+ else
+ tp = find_thread_ptid (ptid);
+
+ /* Suppress output while calling an inferior function. */
+ if (tp->in_infcall)
+ return;
+
+ /* To cater for older frontends, emit ^running, but do it only once
+ per each command. We do it here, since at this point we know
+ that the target was successfully resumed, and in non-async mode,
+ we won't return back to MI interpreter code until the target
+ is done running, so delaying the output of "^running" until then
+ will make it impossible for frontend to know what's going on.
+
+ In future (MI3), we'll be outputting "^done" here. */
+ if (!running_result_record_printed && mi_proceeded)
+ {
+ fprintf_unfiltered (raw_stdout, "%s^running\n",
+ current_token ? current_token : "");
+ }
+
+ if (PIDGET (ptid) == -1)
+ fprintf_unfiltered (raw_stdout, "*running,thread-id=\"all\"\n");
+ else if (ptid_is_pid (ptid))
+ {
+ int count = 0;
+
+ /* Backwards compatibility. If there's only one inferior,
+ output "all", otherwise, output each resumed thread
+ individually. */
+ iterate_over_inferiors (mi_inferior_count, &count);
+
+ if (count == 1)
+ fprintf_unfiltered (raw_stdout, "*running,thread-id=\"all\"\n");
+ else
+ iterate_over_threads (mi_output_running_pid, &ptid);
+ }
+ else
+ {
+ struct thread_info *ti = find_thread_ptid (ptid);
+ gdb_assert (ti);
+ fprintf_unfiltered (raw_stdout, "*running,thread-id=\"%d\"\n", ti->num);
+ }
+
+ if (!running_result_record_printed && mi_proceeded)
+ {
+ running_result_record_printed = 1;
+ /* This is what gdb used to do historically -- printing prompt even if
+ it cannot actually accept any input. This will be surely removed
+ for MI3, and may be removed even earler. */
+ /* FIXME: review the use of target_is_async_p here -- is that
+ what we want? */
+ if (!target_is_async_p ())
+ fputs_unfiltered ("(gdb) \n", raw_stdout);
+ }
+ gdb_flush (raw_stdout);
+}
+
+static void
+mi_solib_loaded (struct so_list *solib)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ if (gdbarch_has_global_solist (target_gdbarch))
+ fprintf_unfiltered (mi->event_channel,
+ "library-loaded,id=\"%s\",target-name=\"%s\","
+ "host-name=\"%s\",symbols-loaded=\"%d\"",
+ solib->so_original_name, solib->so_original_name,
+ solib->so_name, solib->symbols_loaded);
+ else
+ fprintf_unfiltered (mi->event_channel,
+ "library-loaded,id=\"%s\",target-name=\"%s\","
+ "host-name=\"%s\",symbols-loaded=\"%d\","
+ "thread-group=\"i%d\"",
+ solib->so_original_name, solib->so_original_name,
+ solib->so_name, solib->symbols_loaded,
+ current_inferior ()->num);
+
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_solib_unloaded (struct so_list *solib)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ if (gdbarch_has_global_solist (target_gdbarch))
+ fprintf_unfiltered (mi->event_channel,
+ "library-unloaded,id=\"%s\",target-name=\"%s\","
+ "host-name=\"%s\"",
+ solib->so_original_name, solib->so_original_name,
+ solib->so_name);
+ else
+ fprintf_unfiltered (mi->event_channel,
+ "library-unloaded,id=\"%s\",target-name=\"%s\","
+ "host-name=\"%s\",thread-group=\"i%d\"",
+ solib->so_original_name, solib->so_original_name,
+ solib->so_name, current_inferior ()->num);
+
+ gdb_flush (mi->event_channel);
+}
+
+static int
+report_initial_inferior (struct inferior *inf, void *closure)
+{
+ /* This function is called from mi_intepreter_init, and since
+ mi_inferior_added assumes that inferior is fully initialized
+ and top_level_interpreter_data is set, we cannot call
+ it here. */
+ struct mi_interp *mi = closure;
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel,
+ "thread-group-added,id=\"i%d\"",
+ inf->num);
+ gdb_flush (mi->event_channel);
+ return 0;
+}
+
extern initialize_file_ftype _initialize_mi_interp; /* -Wmissing-prototypes */
void