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0963b4bd45
* ada-lang.c: Comment cleanup, mostly periods and spaces. * ada-lang.h: Ditto. * ada-tasks.c: Ditto. * ada-valprint.c: Ditto. * aix-threads.c: Ditto. * alpha-linux-nat.c: Ditto. * alpha-linux-tdep.c: Ditto. * alpha-mdebug-tdep.c: Ditto. * alpha-nat.c: Ditto. * alpha-osf1-tdep.c: Ditto. * alpha-tdep.c: Ditto. * alphabsd-nat.c: Ditto. * alphabsd-tdep.c: Ditto. * amd64-darwin-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * amd64-sol2-tdep.c: Ditto. * amd64-tdep.c: Ditto. * amd64-fbsd-tdep.c: Ditto. * amd64-nbsd-tdep.c: Ditto. * amd64-obsd-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * arm-tdep.c: Ditto. * arm-tdep.h: Ditto. * armnbsd-nat.c: Ditto. * avr-tdep.c: Ditto. * bfin-tdep.c: Ditto. * bsd-kvm.c: Ditto. * c-typeprintc: Ditto. * c-valprint.c: Ditto. * coff-pe-read.h: Ditto. * coffreead.c: Ditto. * cris-tdep.c: Ditto. * d-lang.c: Ditto. * darwin-nat-info.c: Ditto. * darwin-nat.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * dcache.c: Ditto. * dcache.h: Ditto. * dec-thread.c: Ditto. * defs.h: Ditto. * demangle.c: Ditto. * dicos-tdep.c: Ditto. * dictionary.c: Ditto. * dictionary.h: Ditto. * dink32-rom.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dsrec.c: Ditto. * dummy-frame.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * environ.c: Ditto. * eval.c: Ditto. * event-top.h: Ditto. * exceptions.c: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-exp.y: Ditto. * f-lang.c: Ditto. * f-lang.h: Ditto. * f-typeprint.c: Ditto. * f-valprint.c: Ditto. * fbsd-nat.c: Ditto. * findvar.c: Ditto. * fork-child.c: Ditto. * frame.c: Ditto. * frame.h: Ditto. * frv-linux-tdep.c: Ditto. * frv-tdep.c: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_string.h: Ditto. * gdb_thread_db.h: Ditto. * gdb_wait.h: Ditto. * gdbarch.sh: Ditto. * gdbcore.h: Ditto. * gdbthread.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * gnu-nat.c: Ditto. * gnu-nat.h: Ditto. * gnu-v2-abi.c: Ditto. * gnu-v3-abi.c: Ditto. * go32-nat.c: Ditto. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate.
125 lines
4.9 KiB
C
125 lines
4.9 KiB
C
/* Definitions used by event-top.c, for GDB, the GNU debugger.
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Copyright (C) 1999, 2001, 2003, 2007, 2008, 2009, 2010, 2011
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Free Software Foundation, Inc.
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Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef EVENT_TOP_H
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#define EVENT_TOP_H
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struct cmd_list_element;
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/* Stack for prompts. Each prompt is composed as a prefix, a prompt
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and a suffix. The prompt to be displayed at any given time is the
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one on top of the stack. A stack is necessary because of cases in
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which the execution of a gdb command requires further input from
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the user, like for instance 'commands' for breakpoints and
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'actions' for tracepoints. In these cases, the prompt is '>' and
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gdb should process input using the asynchronous readline interface
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and the event loop. In order to achieve this, we need to save
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somewhere the state of GDB, i.e. that it is processing user input
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as part of a command and not as part of the top level command loop.
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The prompt stack represents part of the saved state. Another part
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would be the function that readline would invoke after a whole line
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of input has ben entered. This second piece would be something
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like, for instance, where to return within the code for the actions
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commands after a line has been read. This latter portion has not
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beeen implemented yet. The need for a 3-part prompt arises from
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the annotation level. When this is set to 2, the prompt is
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actually composed of a prefix, the prompt itself and a suffix. */
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/* At any particular time there will be always at least one prompt on
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the stack, the one being currently displayed by gdb. If gdb is
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using annotation level equal 2, there will be 2 prompts on the
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stack: the usual one, w/o prefix and suffix (at top - 1), and the
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'composite' one with prefix and suffix added (at top). At this
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time, this is the only use of the prompt stack. Resetting annotate
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to 0 or 1, pops the top of the stack, resetting its size to one
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element. The MAXPROMPTS limit is safe, for now. Once other cases
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are dealt with (like the different prompts used for 'commands' or
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'actions') this array implementation of the prompt stack may have
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to change. */
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#define MAXPROMPTS 10
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struct prompts
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{
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struct
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{
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char *prefix;
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char *prompt;
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char *suffix;
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}
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prompt_stack[MAXPROMPTS];
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int top;
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};
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#define PROMPT(X) the_prompts.prompt_stack[the_prompts.top + X].prompt
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#define PREFIX(X) the_prompts.prompt_stack[the_prompts.top + X].prefix
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#define SUFFIX(X) the_prompts.prompt_stack[the_prompts.top + X].suffix
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/* Exported functions from event-top.c.
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FIXME: these should really go into top.h. */
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extern void display_gdb_prompt (char *new_prompt);
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void gdb_setup_readline (void);
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void gdb_disable_readline (void);
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extern void async_init_signals (void);
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extern void set_async_editing_command (char *args, int from_tty,
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struct cmd_list_element *c);
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extern void set_async_annotation_level (char *args, int from_tty,
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struct cmd_list_element *c);
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extern void set_async_prompt (char *args, int from_tty,
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struct cmd_list_element *c);
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/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */
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#ifndef STOP_SIGNAL
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#include <signal.h>
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#ifdef SIGTSTP
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#define STOP_SIGNAL SIGTSTP
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extern void handle_stop_sig (int sig);
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#endif
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#endif
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extern void handle_sigint (int sig);
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extern void handle_sigterm (int sig);
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extern void pop_prompt (void);
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extern void push_prompt (char *prefix, char *prompt, char *suffix);
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extern void gdb_readline2 (void *client_data);
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extern void mark_async_signal_handler_wrapper (void *token);
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extern void async_request_quit (void *arg);
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extern void stdin_event_handler (int error, void *client_data);
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extern void async_disable_stdin (void);
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extern void async_enable_stdin (void);
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/* Exported variables from event-top.c.
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FIXME: these should really go into top.h. */
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extern int async_command_editing_p;
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extern int exec_done_display_p;
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extern char *async_annotation_suffix;
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extern char *new_async_prompt;
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extern struct prompts the_prompts;
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extern void (*call_readline) (void *);
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extern void (*input_handler) (char *);
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extern int input_fd;
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extern void (*after_char_processing_hook) (void);
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extern void cli_command_loop (void);
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#endif
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