/* MI Interpreter Definitions and Commands for GDB, the GNU debugger.
- Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2002-2005, 2007-2012 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbthread.h"
#include "solist.h"
#include "gdb.h"
+#include "objfiles.h"
+
+/* These are the interpreter setup, etc. functions for the MI
+ interpreter. */
-/* These are the interpreter setup, etc. functions for the MI interpreter */
static void mi_execute_command_wrapper (char *cmd);
+static void mi_execute_command_input_handler (char *cmd);
static void mi_command_loop (int mi_version);
/* 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 */
+ 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)
- ATTRIBUTE_PRINTF (1, 0);
+ ATTRIBUTE_PRINTF (1, 0);
static void mi3_command_loop (void);
static void mi2_command_loop (void);
static void mi_new_thread (struct thread_info *t);
static void mi_thread_exit (struct thread_info *t, int silent);
+static void mi_record_changed (struct inferior*, int);
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_solib_loaded (struct so_list *solib);
static void mi_solib_unloaded (struct so_list *solib);
static void mi_about_to_proceed (void);
+static void mi_traceframe_changed (int tfnum, int tpnum);
+static void mi_tsv_created (const char *name, LONGEST value);
+static void mi_tsv_deleted (const char *name);
static void mi_breakpoint_created (struct breakpoint *b);
static void mi_breakpoint_deleted (struct breakpoint *b);
static void mi_breakpoint_modified (struct breakpoint *b);
+static void mi_command_param_changed (const char *param, const char *value);
+static void mi_memory_changed (struct inferior *inf, CORE_ADDR memaddr,
+ ssize_t len, const bfd_byte *myaddr);
static int report_initial_inferior (struct inferior *inf, void *closure);
const char *name;
int mi_version;
- /* 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
- this now, and swap them in when we are run. */
+ /* Assign the output channel created at startup to its own global,
+ so that we can create a console channel that encapsulates and
+ prefixes all gdb_output-type bits coming from the rest of the
+ debugger. */
- raw_stdout = stdio_fileopen (stdout);
+ raw_stdout = gdb_stdout;
- /* Create MI channels */
+ /* Create MI console channels, each with a different prefix so they
+ can be distinguished. */
mi->out = mi_console_file_new (raw_stdout, "~", '"');
mi->err = mi_console_file_new (raw_stdout, "&", '"');
mi->log = mi->err;
observer_attach_inferior_appeared (mi_inferior_appeared);
observer_attach_inferior_exit (mi_inferior_exit);
observer_attach_inferior_removed (mi_inferior_removed);
+ observer_attach_record_changed (mi_record_changed);
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);
+ observer_attach_traceframe_changed (mi_traceframe_changed);
+ observer_attach_tsv_created (mi_tsv_created);
+ observer_attach_tsv_deleted (mi_tsv_deleted);
observer_attach_breakpoint_created (mi_breakpoint_created);
observer_attach_breakpoint_deleted (mi_breakpoint_deleted);
observer_attach_breakpoint_modified (mi_breakpoint_modified);
+ observer_attach_command_param_changed (mi_command_param_changed);
+ observer_attach_memory_changed (mi_memory_changed);
- /* 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. */
+ /* 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);
}
{
struct mi_interp *mi = data;
- /* As per hack note in mi_interpreter_init, swap in the output channels... */
+ /* As per hack note in mi_interpreter_init, swap in the output
+ channels... */
gdb_setup_readline ();
/* These overwrite some of the initialization done in
_intialize_event_loop. */
call_readline = gdb_readline2;
- input_handler = mi_execute_command_wrapper;
+ input_handler = mi_execute_command_input_handler;
add_file_handler (input_fd, stdin_event_handler, 0);
async_command_editing_p = 0;
/* FIXME: This is a total hack for now. PB's use of the MI
sync_execution = 0;
gdb_stdout = mi->out;
- /* Route error and log output through the MI */
+ /* Route error and log output through the MI. */
gdb_stderr = mi->err;
gdb_stdlog = mi->log;
- /* Route target output through the MI. */
+ /* Route target output through the MI. */
gdb_stdtarg = mi->targ;
- /* Route target error through the MI as well. */
+ /* Route target error through the MI as well. */
gdb_stdtargerr = mi->targ;
/* Replace all the hooks that we know about. There really needs to
deprecated_show_load_progress = mi_load_progress;
- /* If we're _the_ interpreter, take control. */
+ /* If we're _the_ interpreter, take control. */
if (current_interp_named_p (INTERP_MI1))
deprecated_command_loop_hook = mi1_command_loop;
else if (current_interp_named_p (INTERP_MI2))
return exception_none;
}
-/* Never display the default gdb prompt in mi case. */
+/* Never display the default GDB prompt in MI case. */
+
static int
mi_interpreter_prompt_p (void *data)
{
"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. */
- /* KRS: We shouldn't need this... Events should be installed and they should
- just ALWAYS fire something out down the MI channel... */
+ /* Insert the MI out hooks, making sure to also call the
+ interpreter's hooks if it has any. */
+ /* KRS: We shouldn't need this... Events should be installed and
+ they should just ALWAYS fire something out down the MI
+ channel. */
mi_insert_notify_hooks ();
- /* Now run the code... */
+ /* Now run the code. */
old_chain = make_cleanup (null_cleanup, 0);
for (i = 1; i < argc; i++)
do_cleanups (old_chain);
}
-/*
- * mi_insert_notify_hooks - This inserts a number of hooks that are
- * meant to produce async-notify ("=") MI messages while running
- * commands in another interpreter using mi_interpreter_exec. The
- * canonical use for this is to allow access to the gdb CLI
- * interpreter from within the MI, while still producing MI style
- * output when actions in the CLI command change gdb's state.
-*/
+/* This inserts a number of hooks that are meant to produce
+ async-notify ("=") MI messages while running commands in another
+ interpreter using mi_interpreter_exec. The canonical use for this
+ is to allow access to the gdb CLI interpreter from within the MI,
+ while still producing MI style output when actions in the CLI
+ command change GDB's state. */
static void
mi_insert_notify_hooks (void)
mi_execute_command (cmd, stdin == instream);
}
+/* mi_execute_command_wrapper wrapper suitable for INPUT_HANDLER. */
+
+static void
+mi_execute_command_input_handler (char *cmd)
+{
+ mi_execute_command_wrapper (cmd);
+
+ fputs_unfiltered ("(gdb) \n", raw_stdout);
+ gdb_flush (raw_stdout);
+}
+
static void
mi1_command_loop (void)
{
mi_command_loop (int mi_version)
{
/* Turn off 8 bit strings in quoted output. Any character with the
- high bit set is printed using C's octal format. */
+ high bit set is printed using C's octal format. */
sevenbit_strings = 1;
- /* Tell the world that we're alive */
+
+ /* Tell the world that we're alive. */
fputs_unfiltered ("(gdb) \n", raw_stdout);
gdb_flush (raw_stdout);
+
start_event_loop ();
}
gdb_flush (mi->event_channel);
}
+/* Emit notification on changing the state of record. */
+
+static void
+mi_record_changed (struct inferior *inferior, int started)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+
+ fprintf_unfiltered (mi->event_channel, "record-%s,thread-group=\"i%d\"",
+ started ? "started" : "stopped", inferior->num);
+
+ gdb_flush (mi->event_channel);
+}
+
static void
mi_inferior_added (struct inferior *inf)
{
if (current_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. */
+ /* 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 = current_uiout;
struct target_waitstatus last;
ptid_t last_ptid;
mi_proceeded = 1;
}
-/* When non-zero, no MI notifications will be emitted in
- response to breakpoint change observers. */
-int mi_suppress_breakpoint_notifications = 0;
+/* When the element is non-zero, no MI notifications will be emitted in
+ response to the corresponding observers. */
+
+struct mi_suppress_notification mi_suppress_notification =
+ {
+ 0,
+ 0,
+ 0,
+ };
+
+/* Emit notification on changing a traceframe. */
+
+static void
+mi_traceframe_changed (int tfnum, int tpnum)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+
+ if (mi_suppress_notification.traceframe)
+ return;
+
+ target_terminal_ours ();
+
+ if (tfnum >= 0)
+ fprintf_unfiltered (mi->event_channel, "traceframe-changed,"
+ "num=\"%d\",tracepoint=\"%d\"\n",
+ tfnum, tpnum);
+ else
+ fprintf_unfiltered (mi->event_channel, "traceframe-changed,end");
+
+ gdb_flush (mi->event_channel);
+}
+
+/* Emit notification on creating a trace state variable. */
+
+static void
+mi_tsv_created (const char *name, LONGEST value)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+
+ target_terminal_ours ();
+
+ fprintf_unfiltered (mi->event_channel, "tsv-created,"
+ "name=\"%s\",value=\"%s\"\n",
+ name, plongest (value));
+
+ gdb_flush (mi->event_channel);
+}
+
+/* Emit notification on deleting a trace state variable. */
+
+static void
+mi_tsv_deleted (const char *name)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+
+ target_terminal_ours ();
+
+ if (name != NULL)
+ fprintf_unfiltered (mi->event_channel, "tsv-deleted,"
+ "name=\"%s\"\n", name);
+ else
+ fprintf_unfiltered (mi->event_channel, "tsv-deleted\n");
+
+ gdb_flush (mi->event_channel);
+}
/* Emit notification about a created breakpoint. */
+
static void
mi_breakpoint_created (struct breakpoint *b)
{
struct mi_interp *mi = top_level_interpreter_data ();
struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
- struct gdb_exception e;
+ volatile struct gdb_exception e;
- if (mi_suppress_breakpoint_notifications)
+ if (mi_suppress_notification.breakpoint)
return;
if (b->number <= 0)
fprintf_unfiltered (mi->event_channel,
"breakpoint-created");
/* We want the output from gdb_breakpoint_query to go to
- mi->event_channel. One approach would be to just
- call gdb_breakpoint_query, and then use mi_out_put to
- send the current content of mi_outout into mi->event_channel.
- However, that will break if anything is output to mi_uiout
- prior the calling the breakpoint_created notifications.
- So, we use ui_out_redirect. */
+ mi->event_channel. One approach would be to just call
+ gdb_breakpoint_query, and then use mi_out_put to send the current
+ content of mi_outout into mi->event_channel. However, that will
+ break if anything is output to mi_uiout prior to calling the
+ breakpoint_created notifications. So, we use
+ ui_out_redirect. */
ui_out_redirect (mi_uiout, mi->event_channel);
TRY_CATCH (e, RETURN_MASK_ERROR)
gdb_breakpoint_query (mi_uiout, b->number, NULL);
}
/* Emit notification about deleted breakpoint. */
+
static void
mi_breakpoint_deleted (struct breakpoint *b)
{
struct mi_interp *mi = top_level_interpreter_data ();
- if (mi_suppress_breakpoint_notifications)
+ if (mi_suppress_notification.breakpoint)
return;
if (b->number <= 0)
}
/* Emit notification about modified breakpoint. */
+
static void
mi_breakpoint_modified (struct breakpoint *b)
{
struct mi_interp *mi = top_level_interpreter_data ();
struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
- struct gdb_exception e;
+ volatile struct gdb_exception e;
- if (mi_suppress_breakpoint_notifications)
+ if (mi_suppress_notification.breakpoint)
return;
if (b->number <= 0)
fprintf_unfiltered (mi->event_channel,
"breakpoint-modified");
/* We want the output from gdb_breakpoint_query to go to
- mi->event_channel. One approach would be to just
- call gdb_breakpoint_query, and then use mi_out_put to
- send the current content of mi_outout into mi->event_channel.
- However, that will break if anything is output to mi_uiout
- prior the calling the breakpoint_created notifications.
- So, we use ui_out_redirect. */
+ mi->event_channel. One approach would be to just call
+ gdb_breakpoint_query, and then use mi_out_put to send the current
+ content of mi_outout into mi->event_channel. However, that will
+ break if anything is output to mi_uiout prior to calling the
+ breakpoint_created notifications. So, we use
+ ui_out_redirect. */
ui_out_redirect (mi_uiout, mi->event_channel);
TRY_CATCH (e, RETURN_MASK_ERROR)
gdb_breakpoint_query (mi_uiout, b->number, NULL);
gdb_flush (mi->event_channel);
}
-
static int
mi_output_running_pid (struct thread_info *info, void *arg)
{
struct mi_interp *mi = top_level_interpreter_data ();
target_terminal_ours ();
- if (gdbarch_has_global_solist (target_gdbarch))
+ 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\"",
struct mi_interp *mi = top_level_interpreter_data ();
target_terminal_ours ();
- if (gdbarch_has_global_solist (target_gdbarch))
+ if (gdbarch_has_global_solist (target_gdbarch ()))
fprintf_unfiltered (mi->event_channel,
"library-unloaded,id=\"%s\",target-name=\"%s\","
"host-name=\"%s\"",
gdb_flush (mi->event_channel);
}
+/* Emit notification about the command parameter change. */
+
+static void
+mi_command_param_changed (const char *param, const char *value)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
+
+ if (mi_suppress_notification.cmd_param_changed)
+ return;
+
+ target_terminal_ours ();
+
+ fprintf_unfiltered (mi->event_channel,
+ "cmd-param-changed");
+
+ ui_out_redirect (mi_uiout, mi->event_channel);
+
+ ui_out_field_string (mi_uiout, "param", param);
+ ui_out_field_string (mi_uiout, "value", value);
+
+ ui_out_redirect (mi_uiout, NULL);
+
+ gdb_flush (mi->event_channel);
+}
+
+/* Emit notification about the target memory change. */
+
+static void
+mi_memory_changed (struct inferior *inferior, CORE_ADDR memaddr,
+ ssize_t len, const bfd_byte *myaddr)
+{
+ struct mi_interp *mi = top_level_interpreter_data ();
+ struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
+ struct obj_section *sec;
+
+ if (mi_suppress_notification.memory)
+ return;
+
+ target_terminal_ours ();
+
+ fprintf_unfiltered (mi->event_channel,
+ "memory-changed");
+
+ ui_out_redirect (mi_uiout, mi->event_channel);
+
+ ui_out_field_fmt (mi_uiout, "thread-group", "i%d", inferior->num);
+ ui_out_field_core_addr (mi_uiout, "addr", target_gdbarch (), memaddr);
+ ui_out_field_fmt (mi_uiout, "len", "0x%zx", len);
+
+ /* Append 'type=code' into notification if MEMADDR falls in the range of
+ sections contain code. */
+ sec = find_pc_section (memaddr);
+ if (sec != NULL && sec->objfile != NULL)
+ {
+ flagword flags = bfd_get_section_flags (sec->objfile->obfd,
+ sec->the_bfd_section);
+
+ if (flags & SEC_CODE)
+ ui_out_field_string (mi_uiout, "type", "code");
+ }
+
+ ui_out_redirect (mi_uiout, NULL);
+
+ gdb_flush (mi->event_channel);
+}
+
static int
report_initial_inferior (struct inferior *inf, void *closure)
{
return mi->uiout;
}
+/* Save the original value of raw_stdout here when logging, so we can
+ restore correctly when done. */
+
+static struct ui_file *saved_raw_stdout;
+
+/* Do MI-specific logging actions; save raw_stdout, and change all
+ the consoles to use the supplied ui-file(s). */
+
+static int
+mi_set_logging (struct interp *interp, int start_log,
+ struct ui_file *out, struct ui_file *logfile)
+{
+ struct mi_interp *mi = interp_data (interp);
+
+ if (!mi)
+ return 0;
+
+ if (start_log)
+ {
+ /* The tee created already is based on gdb_stdout, which for MI
+ is a console and so we end up in an infinite loop of console
+ writing to ui_file writing to console etc. So discard the
+ existing tee (it hasn't been used yet, and MI won't ever use
+ it), and create one based on raw_stdout instead. */
+ if (logfile)
+ {
+ ui_file_delete (out);
+ out = tee_file_new (raw_stdout, 0, logfile, 0);
+ }
+
+ saved_raw_stdout = raw_stdout;
+ raw_stdout = out;
+ }
+ else
+ {
+ raw_stdout = saved_raw_stdout;
+ saved_raw_stdout = NULL;
+ }
+
+ mi_console_set_raw (mi->out, raw_stdout);
+ mi_console_set_raw (mi->err, raw_stdout);
+ mi_console_set_raw (mi->log, raw_stdout);
+ mi_console_set_raw (mi->targ, raw_stdout);
+ mi_console_set_raw (mi->event_channel, raw_stdout);
+
+ return 1;
+}
+
extern initialize_file_ftype _initialize_mi_interp; /* -Wmissing-prototypes */
void
_initialize_mi_interp (void)
{
static const struct interp_procs procs =
- {
- mi_interpreter_init, /* init_proc */
- mi_interpreter_resume, /* resume_proc */
- mi_interpreter_suspend, /* suspend_proc */
- mi_interpreter_exec, /* exec_proc */
- mi_interpreter_prompt_p, /* prompt_proc_p */
- mi_ui_out /* ui_out_proc */
- };
+ {
+ mi_interpreter_init, /* init_proc */
+ mi_interpreter_resume, /* resume_proc */
+ mi_interpreter_suspend, /* suspend_proc */
+ mi_interpreter_exec, /* exec_proc */
+ mi_interpreter_prompt_p, /* prompt_proc_p */
+ mi_ui_out, /* ui_out_proc */
+ mi_set_logging /* set_logging_proc */
+ };
/* The various interpreter levels. */
interp_add (interp_new (INTERP_MI1, &procs));
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