mirrors/binutils-gdb
0
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-12-25 10:13:33 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity
af6cf26dcb
binutils-gdb/gdb/command.h
Andrew Cagney 25d29d7093 2003-08-09 Andrew Cagney <cagney@redhat.com> 
Fix GDB PR cli/926.
	* cli/cli-decode.c (add_setshow_uinteger_cmd): New function.
	* command.h (add_setshow_uinteger_cmd): Declare.
	* frame.c (set_backtrace_cmd): New function.
	(show_backtrace_cmd): New function.
	* frame.c (_initialize_frame): Replace "set/show
	backtrace-below-main" with "set/show backtrace past-main".  Add
	command "set/show backtrace limit".
	(backtrace_past_main): Rename "backtrace_below_main".
	(backtrace_limit): New variable.
	(get_prev_frame): Update.  Check the backtrace_limit.

2003-08-09  Andrew Cagney  <cagney@redhat.com>

	* gdb.texinfo (Backtrace): Replace "set/show backtrace-below-main"
	with "set/show backtrace past-main" and "set/show backtrace
	limit".

Index: doc/gdb.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.174
diff -u -r1.174 gdb.texinfo
--- doc/gdb.texinfo	8 Aug 2003 01:58:00 -0000	1.174
+++ doc/gdb.texinfo	9 Aug 2003 14:57:10 -0000
@@ -3922,27 +3922,40 @@
 value, indicating that your program has stopped at the beginning of the
 code for line @code{993} of @code{builtin.c}.

-@kindex set backtrace-below-main
-@kindex show backtrace-below-main
+@kindex set backtrace past-main
+@kindex show backtrace past-main
+@kindex set backtrace limit
+@kindex show backtrace limit

-Most programs have a standard entry point---a place where system libraries
-and startup code transition into user code.  For C this is @code{main}.
-When @value{GDBN} finds the entry function in a backtrace it will terminate
-the backtrace, to avoid tracing into highly system-specific (and generally
-uninteresting) code.  If you need to examine the startup code, then you can
-change this behavior.
+Most programs have a standard user entry point---a place where system
+libraries and startup code transition into user code.  For C this is
+@code{main}.  When @value{GDBN} finds the entry function in a backtrace
+it will terminate the backtrace, to avoid tracing into highly
+system-specific (and generally uninteresting) code.
+
+If you need to examine the startup code, or limit the number of levels
+in a backtrace, you can change this behavior:

 @table @code
-@item set backtrace-below-main off
+@item set backtrace past-main
+@itemx set backtrace past-main on
+Backtraces will continue past the user entry point.
+
+@item set backtrace past-main off
 Backtraces will stop when they encounter the user entry point.  This is the
 default.

-@item set backtrace-below-main
-@itemx set backtrace-below-main on
-Backtraces will continue past the user entry point to the top of the stack.
+@item show backtrace past-main
+Display the current user entry point backtrace policy.
+
+@item set backtrace limit @var{n}
+@itemx set backtrace limit 0
+@cindex backtrace limit
+Limit the backtrace to @var{n} levels.  A value of zero means
+unlimited.

-@item show backtrace-below-main
-Display the current backtrace policy.
+@item show backtrace limit
+Display the current limit on backtrace levels.
 @end table

 @node Selection
2003-08-09 15:10:09 +00:00

300 lines
11 KiB
C
Raw Blame History

/* Header file for command-reading library command.c.
Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1999,
2000, 2002 Free Software Foundation, Inc.
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. */
#if !defined (COMMAND_H)
#define COMMAND_H 1
/* Command classes are top-level categories into which commands are broken
down for "help" purposes.
Notes on classes: class_alias is for alias commands which are not
abbreviations of the original command. class-pseudo is for
commands which are not really commands nor help topics ("stop"). */
enum command_class
{
/* Special args to help_list */
class_deprecated, all_classes = -2, all_commands = -1,
/* Classes of commands */
no_class = -1, class_run = 0, class_vars, class_stack,
class_files, class_support, class_info, class_breakpoint, class_trace,
class_alias, class_obscure, class_user, class_maintenance,
class_pseudo, class_tui, class_xdb
};
/* FIXME: cagney/2002-03-17: Once cmd_type() has been removed, ``enum
cmd_types'' can be moved from "command.h" to "cli-decode.h". */
/* Not a set/show command. Note that some commands which begin with
"set" or "show" might be in this category, if their syntax does
not fall into one of the following categories. */
typedef enum cmd_types
{
not_set_cmd,
set_cmd,
show_cmd
}
cmd_types;
/* Types of "set" or "show" command. */
typedef enum var_types
{
/* "on" or "off". *VAR is an integer which is nonzero for on,
zero for off. */
var_boolean,
/* "on" / "true" / "enable" or "off" / "false" / "disable" or
"auto. *VAR is an ``enum auto_boolean''. NOTE: In general a
custom show command will need to be implemented - one that for
"auto" prints both the "auto" and the current auto-selected
value. */
var_auto_boolean,
/* Unsigned Integer. *VAR is an unsigned int. The user can type 0
to mean "unlimited", which is stored in *VAR as UINT_MAX. */
var_uinteger,
/* Like var_uinteger but signed. *VAR is an int. The user can type 0
to mean "unlimited", which is stored in *VAR as INT_MAX. */
var_integer,
/* String which the user enters with escapes (e.g. the user types \n and
it is a real newline in the stored string).
*VAR is a malloc'd string, or NULL if the string is empty. */
var_string,
/* String which stores what the user types verbatim.
*VAR is a malloc'd string, or NULL if the string is empty. */
var_string_noescape,
/* String which stores a filename.
*VAR is a malloc'd string, or NULL if the string is empty. */
var_filename,
/* ZeroableInteger. *VAR is an int. Like Unsigned Integer except
that zero really means zero. */
var_zinteger,
/* Enumerated type. Can only have one of the specified values. *VAR is a
char pointer to the name of the element that we find. */
var_enum
}
var_types;
/* This structure records one command'd definition. */
struct cmd_list_element;
/* Forward-declarations of the entry-points of cli/cli-decode.c. */
extern struct cmd_list_element *add_cmd (char *, enum command_class,
void (*fun) (char *, int), char *,
struct cmd_list_element **);
extern struct cmd_list_element *add_alias_cmd (char *, char *,
enum command_class, int,
struct cmd_list_element **);
extern struct cmd_list_element *add_prefix_cmd (char *, enum command_class,
void (*fun) (char *, int),
char *,
struct cmd_list_element **,
char *, int,
struct cmd_list_element **);
extern struct cmd_list_element *add_abbrev_prefix_cmd (char *,
enum command_class,
void (*fun) (char *,
int),
char *,
struct cmd_list_element
**, char *, int,
struct cmd_list_element
**);
/* Set the commands corresponding callback. */
typedef void cmd_cfunc_ftype (char *args, int from_tty);
extern void set_cmd_cfunc (struct cmd_list_element *cmd,
cmd_cfunc_ftype *cfunc);
typedef void cmd_sfunc_ftype (char *args, int from_tty,
struct cmd_list_element *c);
extern void set_cmd_sfunc (struct cmd_list_element *cmd,
cmd_sfunc_ftype *sfunc);
extern void set_cmd_completer (struct cmd_list_element *cmd,
char **(*completer) (char *text, char *word));
/* HACK: cagney/2002-02-23: Code, mostly in tracepoints.c, grubs
around in cmd objects to test the value of the commands sfunc(). */
extern int cmd_cfunc_eq (struct cmd_list_element *cmd,
void (*cfunc) (char *args, int from_tty));
/* Each command object has a local context attached to it. . */
extern void set_cmd_context (struct cmd_list_element *cmd, void *context);
extern void *get_cmd_context (struct cmd_list_element *cmd);
/* Execute CMD's pre/post hook. Throw an error if the command fails.
If already executing this pre/post hook, or there is no pre/post
hook, the call is silently ignored. */
extern void execute_cmd_pre_hook (struct cmd_list_element *cmd);
extern void execute_cmd_post_hook (struct cmd_list_element *cmd);
/* Return the type of the command. */
/* NOTE: cagney/2002-03-17: The add_show_from_set() function clones
the set command passed as a parameter. The clone operation will
include (BUG?) any ``set'' command callback, if present. Commands
like ``info set'' call all the ``show'' command callbacks.
Unfortunatly, for ``show'' commands cloned from ``set'', this
includes callbacks belonging to ``set'' commands. Making this
worse, this only occures if add_show_from_set() is called after
add_cmd_sfunc() (BUG?). */
extern enum cmd_types cmd_type (struct cmd_list_element *cmd);
extern struct cmd_list_element *lookup_cmd (char **,
struct cmd_list_element *, char *,
int, int);
extern struct cmd_list_element *lookup_cmd_1 (char **,
struct cmd_list_element *,
struct cmd_list_element **,
int);
extern struct cmd_list_element *
deprecate_cmd (struct cmd_list_element *, char * );
extern void
deprecated_cmd_warning (char **);
extern int
lookup_cmd_composition (char *text,
struct cmd_list_element **alias,
struct cmd_list_element **prefix_cmd,
struct cmd_list_element **cmd);
extern struct cmd_list_element *add_com (char *, enum command_class,
void (*fun) (char *, int), char *);
extern struct cmd_list_element *add_com_alias (char *, char *,
enum command_class, int);
extern struct cmd_list_element *add_info (char *, void (*fun) (char *, int),
char *);
extern struct cmd_list_element *add_info_alias (char *, char *, int);
extern char **complete_on_cmdlist (struct cmd_list_element *, char *, char *);
extern char **complete_on_enum (const char *enumlist[], char *, char *);
extern void delete_cmd (char *, struct cmd_list_element **);
extern void help_cmd (char *, struct ui_file *);
extern void help_list (struct cmd_list_element *, char *,
enum command_class, struct ui_file *);
extern void help_cmd_list (struct cmd_list_element *, enum command_class,
char *, int, struct ui_file *);
extern void add_setshow_cmd (char *name,
enum command_class class,
var_types var_type, void *var,
char *set_doc, char *show_doc,
cmd_sfunc_ftype *set_func,
cmd_sfunc_ftype *show_func,
struct cmd_list_element **set_list,
struct cmd_list_element **show_list);
extern void add_setshow_cmd_full (char *name,
enum command_class class,
var_types var_type, void *var,
char *set_doc, char *show_doc,
cmd_sfunc_ftype *set_func,
cmd_sfunc_ftype *show_func,
struct cmd_list_element **set_list,
struct cmd_list_element **show_list,
struct cmd_list_element **set_result,
struct cmd_list_element **show_result);
extern struct cmd_list_element *add_set_cmd (char *name, enum
command_class class,
var_types var_type, void *var,
char *doc,
struct cmd_list_element **list);
extern struct cmd_list_element *add_set_enum_cmd (char *name,
enum command_class class,
const char *enumlist[],
const char **var,
char *doc,
struct cmd_list_element **list);
extern void add_setshow_auto_boolean_cmd (char *name,
enum command_class class,
enum auto_boolean *var,
char *set_doc, char *show_doc,
cmd_sfunc_ftype *set_func,
cmd_sfunc_ftype *show_func,
struct cmd_list_element **set_list,
struct cmd_list_element **show_list);
extern void add_setshow_boolean_cmd (char *name,
enum command_class class,
int *var,
char *set_doc,
char *show_doc,
cmd_sfunc_ftype *set_func,
cmd_sfunc_ftype *show_func,
struct cmd_list_element **set_list,
struct cmd_list_element **show_list);
extern void add_setshow_uinteger_cmd (char *name,
enum command_class class,
unsigned int *var,
char *set_doc,
char *show_doc,
cmd_sfunc_ftype *set_func,
cmd_sfunc_ftype *show_func,
struct cmd_list_element **set_list,
struct cmd_list_element **show_list);
extern struct cmd_list_element *add_show_from_set (struct cmd_list_element *,
struct cmd_list_element
**);
/* Do a "show" command for each thing on a command list. */
extern void cmd_show_list (struct cmd_list_element *, int, char *);
extern NORETURN void error_no_arg (char *) ATTR_NORETURN;
extern void dont_repeat (void);
/* Used to mark commands that don't do anything. If we just leave the
function field NULL, the command is interpreted as a help topic, or
as a class of commands. */
extern void not_just_help_class_command (char *, int);
/* check function pointer */
extern int cmd_func_p (struct cmd_list_element *cmd);
/* call the command function */
extern void cmd_func (struct cmd_list_element *cmd, char *args, int from_tty);
#endif /* !defined (COMMAND_H) */
Reference in New Issue View Git Blame Copy Permalink