binutils-gdb/gdb/mi/mi-interp.c

407 lines
11 KiB
C
Raw Normal View History

2003-02-06 06:30:17 +01:00
/* MI Interpreter Definitions and Commands for GDB, the GNU debugger.
Copyright 2002, 2003, 2003 Free Software Foundation, Inc.
2003-02-06 06:30:17 +01:00
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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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. */
#include "defs.h"
#include "gdb_string.h"
#include "interps.h"
#include "event-top.h"
#include "event-loop.h"
#include "inferior.h"
#include "ui-out.h"
#include "top.h"
#include "mi-main.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;
};
/* These are the interpreter setup, etc. functions for the MI interpreter */
static void mi_execute_command_wrapper (char *cmd);
static void mi_command_loop (int mi_version);
static char *mi_input (char *);
/* 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 void mi3_command_loop (void);
2003-02-06 06:30:17 +01:00
static void mi2_command_loop (void);
static void mi1_command_loop (void);
static void mi_insert_notify_hooks (void);
static void mi_remove_notify_hooks (void);
static void *
mi_interpreter_init (void)
{
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
this now, and swap them in when we are run. */
raw_stdout = stdio_fileopen (stdout);
/* Create MI channels */
mi->out = mi_console_file_new (raw_stdout, "~", '"');
mi->err = mi_console_file_new (raw_stdout, "&", '"');
mi->log = mi->err;
mi->targ = mi_console_file_new (raw_stdout, "@", '"');
mi->event_channel = mi_console_file_new (raw_stdout, "=", 0);
return mi;
}
static int
mi_interpreter_resume (void *data)
{
struct mi_interp *mi = data;
/* As per hack note in mi_interpreter_init, swap in the output channels... */
gdb_setup_readline ();
if (event_loop_p)
{
/* These overwrite some of the initialization done in
_intialize_event_loop. */
call_readline = gdb_readline2;
input_handler = mi_execute_command_wrapper;
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 implicitly
relies on a bug in the async support which allows asynchronous
commands to leak through the commmand loop. The bug involves
(but is not limited to) the fact that sync_execution was
erroneously initialized to 0. Duplicate by initializing it
thus here... */
sync_execution = 0;
}
gdb_stdout = mi->out;
/* Route error and log output through the MI */
gdb_stderr = mi->err;
gdb_stdlog = mi->log;
/* Route target output through the MI. */
gdb_stdtarg = mi->targ;
/* Replace all the hooks that we know about. There really needs to
be a better way of doing this... */
clear_interpreter_hooks ();
show_load_progress = mi_load_progress;
/* If we're _the_ interpreter, take control. */
if (current_interp_named_p (INTERP_MI1))
command_loop_hook = mi1_command_loop;
else if (current_interp_named_p (INTERP_MI2))
2003-02-06 06:30:17 +01:00
command_loop_hook = mi2_command_loop;
else if (current_interp_named_p (INTERP_MI3))
command_loop_hook = mi3_command_loop;
2003-02-06 06:30:17 +01:00
else
command_loop_hook = mi2_command_loop;
2003-02-06 06:30:17 +01:00
return 1;
}
static int
mi_interpreter_suspend (void *data)
{
gdb_disable_readline ();
return 1;
}
static int
mi_interpreter_exec (void *data, const char *command)
{
char *tmp = alloca (strlen (command) + 1);
strcpy (tmp, command);
mi_execute_command_wrapper (tmp);
return 1;
}
/* Never display the default gdb prompt in mi case. */
static int
mi_interpreter_prompt_p (void *data)
{
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
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;
if (argc < 2)
{
xasprintf (&mi_error_message,
"mi_cmd_interpreter_exec: Usage: -interpreter-exec interp command");
return MI_CMD_ERROR;
}
interp_to_use = interp_lookup (argv[0]);
if (interp_to_use == NULL)
{
xasprintf (&mi_error_message,
"mi_cmd_interpreter_exec: could not find interpreter \"%s\"",
argv[0]);
return MI_CMD_ERROR;
}
if (!interp_exec_p (interp_to_use))
{
xasprintf (&mi_error_message,
"mi_cmd_interpreter_exec: interpreter \"%s\" does not support command execution",
argv[0]);
return MI_CMD_ERROR;
}
/* 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... */
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))
{
int len = strlen (argv[i]);
buff = xmalloc (len + 2);
memcpy (buff, argv[i], len);
buff[len] = '&';
buff[len + 1] = '\0';
}
/* 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;
if (interp_exec (interp_to_use, argv[i]) < 0)
{
mi_error_last_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;
}
/*
* 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.
*/
static void
mi_insert_notify_hooks (void)
{
query_hook = mi_interp_query_hook;
}
static void
mi_remove_notify_hooks (void)
2003-02-06 06:30:17 +01:00
{
query_hook = NULL;
}
static int
mi_interp_query_hook (const char *ctlstr, va_list ap)
{
return 1;
}
static void
mi_execute_command_wrapper (char *cmd)
{
mi_execute_command (cmd, stdin == instream);
}
static void
mi1_command_loop (void)
{
mi_command_loop (1);
}
static void
mi2_command_loop (void)
{
mi_command_loop (2);
}
static void
mi3_command_loop (void)
{
mi_command_loop (3);
}
2003-02-06 06:30:17 +01:00
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. */
init_ui_hook = 0;
/* command_loop_hook = 0; */
print_frame_info_listing_hook = 0;
query_hook = 0;
warning_hook = 0;
create_breakpoint_hook = 0;
delete_breakpoint_hook = 0;
modify_breakpoint_hook = 0;
interactive_hook = 0;
registers_changed_hook = 0;
readline_begin_hook = 0;
readline_hook = 0;
readline_end_hook = 0;
register_changed_hook = 0;
memory_changed_hook = 0;
context_hook = 0;
target_wait_hook = 0;
call_command_hook = 0;
error_hook = 0;
error_begin_hook = 0;
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;
/* Tell the world that we're alive */
fputs_unfiltered ("(gdb) \n", raw_stdout);
gdb_flush (raw_stdout);
if (!event_loop_p)
simplified_command_loop (mi_input, mi_execute_command);
else
start_event_loop ();
}
static char *
mi_input (char *buf)
{
return gdb_readline (NULL);
}
2003-06-08 Andrew Cagney <cagney@redhat.com> * acinclude.m4 (gcc_AC_CHECK_DECL, (gcc_AC_CHECK_DECL): Stolen from GCC's acinclude.m4. * configure.in: Check for getopt's delcaration. * aclocal.m4, config.in, configure: Re-generate. * main.c (error_init): Delete declaration. * defs.h (error_init): Declare. * rs6000-tdep.c (rs6000_fetch_pointer_argument): Make static. (rs6000_convert_from_func_ptr_addr): Make static. (_initialize_rs6000_tdep): Add declaration. * cli/cli-cmds.c (dont_repeat): Delete declaration. (show_commands, set_verbose, show_history): Delete declaration. * top.h (set_verbose): Add declaration. (show_history, set_history, show_commands): Add declaration. (do_restore_instream_cleanup): Add declaration. * objc-lang.c (specialcmp): Make static. (print_object_command): Make static. (find_objc_msgsend): Make static. (find_objc_msgcall_submethod_helper): Make static. (find_objc_msgcall_submethod): Make static. (_initialize_objc_language): Add declaration. (find_implementation_from_class): Make static. (find_implementation): Make static. * objc-exp.y (yylex): Delete lookup_struct_typedef declaration. * objc-lang.h (lookup_struct_typedef): Add declaration. * cli/cli-interp.c (_initialize_cli_interp): Add declaration. * cli/cli-script.c (clear_hook_in_cleanup): Make static. (do_restore_user_call_depth): Make static. (do_restore_instream_cleanup): Delete declaration. (dont_repeat): Delete declaration. * cli/cli-decode.c (add_abbrev_cmd): Delete function. * cli/cli-dump.c (_initialize_cli_dump): Add declaration. * reggroups.c (_initialize_reggroup): Add declaration. * cp-support.c (_initialize_cp_support): Add declaration. * cp-abi.c (_initialize_cp_abi): Add declaration. * hpacc-abi.c (_initialize_hpacc_abi): Add declaration. * gnu-v3-abi.c (gnuv3_baseclass_offset): Make static. (_initialize_gnu_v3_abi): Add declaration. * gnu-v2-abi.c (gnuv2_value_rtti_type): Make static. (_initialize_gnu_v2_abi): Add declaration. * frame-base.c (_initialize_frame_base): Add declaration. * doublest.c (floatformat_from_length): Make static. * frame-unwind.c (_initialize_frame_unwind): Add declaration. * frame.c (create_sentinel_frame): Make static. (_initialize_frame): Add declaration. * top.c (do_catch_errors): Make static. (gdb_rl_operate_and_get_next_completion): Make static. * typeprint.c: Include "typeprint.h". * sentinel-frame.c (sentinel_frame_prev_register): Make static. (sentinel_frame_this_id): Make static. * p-valprint.c (_initialize_pascal_valprint): Add declaration. * ui-out.c (make_cleanup_ui_out_begin_end): Delete function. * dwarf2-frame.c (dwarf2_frame_cache): Make static. * p-exp.y (push_current_type, pop_current_type): ISO C declaration. * dwarf2expr.h (dwarf_expr_context): ISO C declaration. * maint.c (maintenance_print_architecture): Make static. * signals/signals.c (_initialize_signals): Add declaration. * std-regs.c (_initialize_frame_reg): Add declaration. * jv-exp.y (push_variable): ISO C definition. (push_qualified_expression_name): Ditto. * memattr.c (_initialize_mem): Add declaration. * remote.c (remote_check_watch_resources): Make static. (remote_stopped_by_watchpoint): Make static. (remote_stopped_data_address): Make static. * d10v-tdep.c (nr_dmap_regs): Make static. (a0_regnum): Make static. (d10v_frame_unwind_cache): Make static. (d10v_frame_p): Make static. * osabi.c (show_osabi): Make static. (_initialize_gdb_osabi): Add extern declaration. * gdbtypes.c (make_qualified_type): Make static. (safe_parse_type): Make static. * macrocmd.c (_initialize_macrocmd): Add extern declaration. * macrotab.c (macro_bcache_free): Make static. * interps.c (interp_set_quiet): Make static. (interpreter_exec_cmd): Make static. * stack.h (select_frame_command): New file. * stack.c: Include "stack.h". (select_frame_command_wrapper): Delete function. (select_frame_command): Make global. * infcall.c: Include "infcall.h". * linespec.c: Include "linespec.h". * symfile.c (sections_overlap): Make static. * cp-support.h (cp_initialize_namespace): ISO C declaration. * charset.c (_initialize_charset): Add missing prototype. * regcache.c (init_legacy_regcache_descr): Make static. (do_regcache_xfree): Make static. (regcache_xfer_part): Make static. (_initialize_regcache): Add missing prototype. * breakpoint.c (parse_breakpoint_sals): Make static. (breakpoint_sals_to_pc): Make static. * interps.h (clear_interpreter_hooks): ISO C declaration. * Makefile.in (stack_h): Define. (stack.o, typeprint.o, mi-main.o): Update dependencies. (mi-cmd-stack.o, infcall.o, linespec.o): Update dependencies. Index: mi/ChangeLog 2003-06-08 Andrew Cagney <cagney@redhat.com> * mi-parse.c (_initialize_mi_parse): Delete function. * mi-main.c: Include "mi-main.h". * mi-interp.c (_initialize_mi_interp): Add declaration. * mi-cmd-stack.c: Include "stack.h". (select_frame_command_wrapper): Delete extern declaration. (mi_cmd_stack_select_frame): Replace select_frame_command_wrapper with select_frame_command.
2003-06-08 20:27:14 +02:00
extern initialize_file_ftype _initialize_mi_interp; /* -Wmissing-prototypes */
2003-02-06 06:30:17 +01:00
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 */
};
/* The various interpreter levels. */
2003-02-06 06:30:17 +01:00
interp_add (interp_new (INTERP_MI1, NULL, mi_out_new (1), &procs));
interp_add (interp_new (INTERP_MI2, NULL, mi_out_new (2), &procs));
interp_add (interp_new (INTERP_MI3, NULL, mi_out_new (3), &procs));
2003-02-06 06:30:17 +01:00
/* "mi" selects the most recent released version. "mi2" was
released as part of GDB 6.0. */
interp_add (interp_new (INTERP_MI, NULL, mi_out_new (2), &procs));
2003-02-06 06:30:17 +01:00
}