/* MI Interpreter Definitions and Commands for GDB, the GNU debugger.
- Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009
+ Free Software Foundation, Inc.
This file is part of GDB.
#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);
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);
+static void mi_new_inferior (int pid);
+static void mi_inferior_exit (int pid);
+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_interpreter_init (void)
+mi_interpreter_init (int top_level)
{
struct mi_interp *mi = XMALLOC (struct mi_interp);
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_new_inferior (mi_new_inferior);
+ observer_attach_inferior_exit (mi_inferior_exit);
+ 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);
+ }
+
return mi;
}
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++)
{
- /* 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 gdb_exception e = interp_exec (interp_to_use, argv[i]);
- if (e.reason < 0)
- {
- mi_error_message = xstrdup (e.message);
- result = MI_CMD_ERROR;
- break;
- }
- }
- do_exec_error_cleanups (ALL_CLEANUPS);
- sync_execution = 0;
+ struct gdb_exception e = interp_exec (interp_to_use, argv[i]);
+ if (e.reason < 0)
+ {
+ mi_error_message = xstrdup (e.message);
+ make_cleanup (xfree, mi_error_message);
+ break;
+ }
}
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_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 ();
+
+ fprintf_unfiltered (mi->event_channel,
+ "thread-created,id=\"%d\",group-id=\"%d\"",
+ t->num, t->ptid.pid);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_thread_exit (struct thread_info *t)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel,
+ "thread-exited,id=\"%d\",group-id=\"%d\"",
+ t->num,t->ptid.pid);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_new_inferior (int pid)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel, "thread-group-created,id=\"%d\"",
+ pid);
+ gdb_flush (mi->event_channel);
+}
+
+static void
+mi_inferior_exit (int pid)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ target_terminal_ours ();
+ fprintf_unfiltered (mi->event_channel, "thread-group-exited,id=\"%d\"",
+ pid);
+ 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 ());
+ struct mi_interp *mi = top_level_interpreter_data ();
+
+ if (print_frame)
+ {
+ 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");
+ }
+
+ 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_on_resume (ptid_t ptid)
+{
+ /* 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)
+ {
+ if (current_token)
+ fputs_unfiltered (current_token, raw_stdout);
+ fputs_unfiltered ("^running\n", raw_stdout);
+ }
+
+ if (PIDGET (ptid) == -1)
+ fprintf_unfiltered (raw_stdout, "*running,thread-id=\"all\"\n");
+ else if (thread_count () == 0)
+ {
+ /* This is a target where for single-threaded programs the thread
+ table has zero threads. Don't print any thread-id field. */
+ fprintf_unfiltered (raw_stdout, "*running\n");
+ }
+ else
+ {
+ struct thread_info *ti = find_thread_pid (ptid);
+ gdb_assert (ti);
+ fprintf_unfiltered (raw_stdout, "*running,thread-id=\"%d\"\n", ti->num);
+ }
+
+ if (!running_result_record_printed)
+ {
+ 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 ();
+ 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);
+ 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 ();
+ 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);
+ gdb_flush (mi->event_channel);
+}
+
+
extern initialize_file_ftype _initialize_mi_interp; /* -Wmissing-prototypes */
void
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