gdb/

	* cli/cli-decode.c (add_setshow_zuinteger_unlimited_cmd): New.
	Update comment to add_setshow_integer_cmd.
	* cli/cli-setshow.c (do_set_command): Handle case
	'var_zuinteger_unlimited'.
	(do_show_command): Likewise.
	* cli/cli-cmds.c (init_cmds): Call add_setshow_zuinteger_unlimited_cmd
	for command 'remotetimeout'.
	* command.h (enum var_types): New zuinteger_unlimited.  Update comment
	to var_integer.
	* source.c (_initialize_source): Call add_setshow_zuinteger_unlimited_cmd
	for command 'set listsize'.

gdb/doc/
	* gdb.texinfo (List): Describe the meaning of 0 and -1 in
	'set listsize'.

gdb/testsuite/
	* gdb.base/list.exp (set_listsize): Don't set arg to "unlimited"
	when it is less than 0.

1 files changed, 17 insertions, 1 deletions

diff --git a/gdb/command.h b/gdb/command.h
index 88895bb04d..b88bd8b7e8 100644
--- a/gdb/command.h
+++ b/gdb/command.h
@@ -77,7 +77,8 @@ typedef enum var_types
 
     /* 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.  */
+       INT_MAX.  The only remaining use of it is the Python API.
+       Don't use it elsewhere.  */
     var_integer,
 
     /* String which the user enters with escapes (e.g. the user types
@@ -99,6 +100,9 @@ typedef enum var_types
     /* ZeroableUnsignedInteger.  *VAR is an unsigned int.  Zero really
        means zero.  */
     var_zuinteger,
+    /* ZeroableUnsignedInteger with unlimited value.  *VAR is an unsigned
+       int, but its range is [0, INT_MAX].  -1 stands for unlimited.  */
+    var_zuinteger_unlimited,
     /* Enumerated type.  Can only have one of the specified values.
        *VAR is a char pointer to the name of the element that we
        find.  */
@@ -354,6 +358,18 @@ extern void add_setshow_zuinteger_cmd (char *name,
 				       struct cmd_list_element **set_list,
 				       struct cmd_list_element **show_list);
 
+extern void
+  add_setshow_zuinteger_unlimited_cmd (char *name,
+				       enum command_class class,
+				       unsigned int *var,
+				       const char *set_doc,
+				       const char *show_doc,
+				       const char *help_doc,
+				       cmd_sfunc_ftype *set_func,
+				       show_value_ftype *show_func,
+				       struct cmd_list_element **set_list,
+				       struct cmd_list_element **show_list);
+
 /* Do a "show" command for each thing on a command list.  */
 
 extern void cmd_show_list (struct cmd_list_element *, int, char *);