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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [cli/] [cli-interp.c] - Rev 287
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/* CLI Definitions for GDB, the GNU debugger. Copyright (c) 2002, 2003, 2007, 2008 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 3 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, see <http://www.gnu.org/licenses/>. */ #include "defs.h" #include "interps.h" #include "wrapper.h" #include "event-top.h" #include "ui-out.h" #include "cli-out.h" #include "top.h" /* for "execute_command" */ #include "gdb_string.h" #include "exceptions.h" struct ui_out *cli_uiout; /* These are the ui_out and the interpreter for the console interpreter. */ /* Longjmp-safe wrapper for "execute_command". */ static struct gdb_exception safe_execute_command (struct ui_out *uiout, char *command, int from_tty); struct captured_execute_command_args { char *command; int from_tty; }; /* These implement the cli out interpreter: */ static void * cli_interpreter_init (void) { return NULL; } static int cli_interpreter_resume (void *data) { struct ui_file *stream; /*sync_execution = 1; */ /* gdb_setup_readline will change gdb_stdout. If the CLI was previously writing to gdb_stdout, then set it to the new gdb_stdout afterwards. */ stream = cli_out_set_stream (cli_uiout, gdb_stdout); if (stream != gdb_stdout) { cli_out_set_stream (cli_uiout, stream); stream = NULL; } gdb_setup_readline (); if (stream != NULL) cli_out_set_stream (cli_uiout, gdb_stdout); return 1; } static int cli_interpreter_suspend (void *data) { gdb_disable_readline (); return 1; } /* Don't display the prompt if we are set quiet. */ static int cli_interpreter_display_prompt_p (void *data) { if (interp_quiet_p (NULL)) return 0; else return 1; } static struct gdb_exception cli_interpreter_exec (void *data, const char *command_str) { struct ui_file *old_stream; struct gdb_exception result; /* FIXME: cagney/2003-02-01: Need to const char *propogate safe_execute_command. */ char *str = strcpy (alloca (strlen (command_str) + 1), command_str); /* gdb_stdout could change between the time cli_uiout was initialized and now. Since we're probably using a different interpreter which has a new ui_file for gdb_stdout, use that one instead of the default. It is important that it gets reset everytime, since the user could set gdb to use a different interpreter. */ old_stream = cli_out_set_stream (cli_uiout, gdb_stdout); result = safe_execute_command (cli_uiout, str, 1); cli_out_set_stream (cli_uiout, old_stream); return result; } static void do_captured_execute_command (struct ui_out *uiout, void *data) { struct captured_execute_command_args *args = (struct captured_execute_command_args *) data; execute_command (args->command, args->from_tty); } static struct gdb_exception safe_execute_command (struct ui_out *uiout, char *command, int from_tty) { struct gdb_exception e; struct captured_execute_command_args args; args.command = command; args.from_tty = from_tty; e = catch_exception (uiout, do_captured_execute_command, &args, RETURN_MASK_ALL); /* FIXME: cagney/2005-01-13: This shouldn't be needed. Instead the caller should print the exception. */ exception_print (gdb_stderr, e); return e; } /* Standard gdb initialization hook. */ extern initialize_file_ftype _initialize_cli_interp; /* -Wmissing-prototypes */ void _initialize_cli_interp (void) { static const struct interp_procs procs = { cli_interpreter_init, /* init_proc */ cli_interpreter_resume, /* resume_proc */ cli_interpreter_suspend, /* suspend_proc */ cli_interpreter_exec, /* exec_proc */ cli_interpreter_display_prompt_p /* prompt_proc_p */ }; struct interp *cli_interp; /* Create a default uiout builder for the CLI. */ cli_uiout = cli_out_new (gdb_stdout); cli_interp = interp_new (INTERP_CONSOLE, NULL, cli_uiout, &procs); interp_add (cli_interp); }
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