Update kconfig-frontends to 3.7.0

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5484 42af7a65-404d-4744-a932-0658087f49c3

16 files changed, 388 insertions, 141 deletions

diff --git a/misc/tools/kconfig-frontends/configure b/misc/tools/kconfig-frontends/configure
index ad26f3f9d..069ec071f 100755
--- a/misc/tools/kconfig-frontends/configure
+++ b/misc/tools/kconfig-frontends/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.67 for kconfig-frontends 3.6.0-0.
+# Generated by GNU Autoconf 2.67 for kconfig-frontends 3.7.0.0.
 #
 # Report bugs to <yann.morin.1998@free.fr>.
 #
@@ -701,8 +701,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='kconfig-frontends'
 PACKAGE_TARNAME='kconfig-frontends'
-PACKAGE_VERSION='3.6.0-0'
-PACKAGE_STRING='kconfig-frontends 3.6.0-0'
+PACKAGE_VERSION='3.7.0.0'
+PACKAGE_STRING='kconfig-frontends 3.7.0.0'
 PACKAGE_BUGREPORT='yann.morin.1998@free.fr'
 PACKAGE_URL=''
 
@@ -1516,7 +1516,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures kconfig-frontends 3.6.0-0 to adapt to many kinds of systems.
+\`configure' configures kconfig-frontends 3.7.0.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1587,7 +1587,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of kconfig-frontends 3.6.0-0:";;
+     short | recursive ) echo "Configuration of kconfig-frontends 3.7.0.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1735,7 +1735,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-kconfig-frontends configure 3.6.0-0
+kconfig-frontends configure 3.7.0.0
 generated by GNU Autoconf 2.67
 
 Copyright (C) 2010 Free Software Foundation, Inc.
@@ -2325,7 +2325,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by kconfig-frontends $as_me 3.6.0-0, which was
+It was created by kconfig-frontends $as_me 3.7.0.0, which was
 generated by GNU Autoconf 2.67.  Invocation command line was
 
   $ $0 $@
@@ -3157,7 +3157,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='kconfig-frontends'
- VERSION='3.6.0-0'
+ VERSION='3.7.0.0'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -17335,7 +17335,7 @@ fi
 
 #----------------------------------------
 # Get the version to apply to the parser shared library
-KCONFIGPARSER_LIB_VERSION=3.6.0
+KCONFIGPARSER_LIB_VERSION=3.7.0
 
 
 #----------------------------------------
@@ -17912,7 +17912,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by kconfig-frontends $as_me 3.6.0-0, which was
+This file was extended by kconfig-frontends $as_me 3.7.0.0, which was
 generated by GNU Autoconf 2.67.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -17978,7 +17978,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-kconfig-frontends config.status 3.6.0-0
+kconfig-frontends config.status 3.7.0.0
 configured by $0, generated by GNU Autoconf 2.67,
   with options \\"\$ac_cs_config\\"
 
diff --git a/misc/tools/kconfig-frontends/configure.ac b/misc/tools/kconfig-frontends/configure.ac
index 895cd58cf..6ecf47b4f 100644
--- a/misc/tools/kconfig-frontends/configure.ac
+++ b/misc/tools/kconfig-frontends/configure.ac
@@ -43,6 +43,7 @@ AC_SUBST([SILENT_MAKEFLAGS])
 
 #----------------------------------------
 # Prepare libtool
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) dnl Automake, we have a problem...
 LT_PREREQ([2.2.6])
 LT_INIT([disable-static])
 
diff --git a/misc/tools/kconfig-frontends/frontends/conf/conf.c b/misc/tools/kconfig-frontends/frontends/conf/conf.c
index 0dc4a2c77..4da3b4adf 100644
--- a/misc/tools/kconfig-frontends/frontends/conf/conf.c
+++ b/misc/tools/kconfig-frontends/frontends/conf/conf.c
@@ -32,7 +32,7 @@ enum input_mode {
 	defconfig,
 	savedefconfig,
 	listnewconfig,
-	oldnoconfig,
+	olddefconfig,
 } input_mode = oldaskconfig;
 
 static int indent = 1;
@@ -365,7 +365,7 @@ static void conf(struct menu *menu)
 		case P_MENU:
 			if ((input_mode == silentoldconfig ||
 			     input_mode == listnewconfig ||
-			     input_mode == oldnoconfig) &&
+			     input_mode == olddefconfig) &&
 			    rootEntry != menu) {
 				check_conf(menu);
 				return;
@@ -429,7 +429,7 @@ static void check_conf(struct menu *menu)
 				if (sym->name && !sym_is_choice_value(sym)) {
 					printf("%s%s\n", CONFIG_, sym->name);
 				}
-			} else if (input_mode != oldnoconfig) {
+			} else if (input_mode != olddefconfig) {
 				if (!conf_cnt++)
 					printf(_("*\n* Restart config...\n*\n"));
 				rootEntry = menu_get_parent_menu(menu);
@@ -454,7 +454,13 @@ static struct option long_opts[] = {
 	{"alldefconfig",    no_argument,       NULL, alldefconfig},
 	{"randconfig",      no_argument,       NULL, randconfig},
 	{"listnewconfig",   no_argument,       NULL, listnewconfig},
-	{"oldnoconfig",     no_argument,       NULL, oldnoconfig},
+	{"olddefconfig",    no_argument,       NULL, olddefconfig},
+	/*
+	 * oldnoconfig is an alias of olddefconfig, because people already
+	 * are dependent on its behavior(sets new symbols to their default
+	 * value but not 'n') with the counter-intuitive name.
+	 */
+	{"oldnoconfig",     no_argument,       NULL, olddefconfig},
 	{NULL, 0, NULL, 0}
 };
 
@@ -467,7 +473,8 @@ static void conf_usage(const char *progname)
 	printf("  --oldaskconfig          Start a new configuration using a line-oriented program\n");
 	printf("  --oldconfig             Update a configuration using a provided .config as base\n");
 	printf("  --silentoldconfig       Same as oldconfig, but quietly, additionally update deps\n");
-	printf("  --oldnoconfig           Same as silentoldconfig but set new symbols to no\n");
+	printf("  --olddefconfig          Same as silentoldconfig but sets new symbols to their default value\n");
+	printf("  --oldnoconfig           An alias of olddefconfig\n");
 	printf("  --defconfig <file>      New config with default defined in <file>\n");
 	printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
 	printf("  --allnoconfig           New config where all options are answered with no\n");
@@ -520,7 +527,7 @@ int main(int ac, char **av)
 		case allmodconfig:
 		case alldefconfig:
 		case listnewconfig:
-		case oldnoconfig:
+		case olddefconfig:
 			break;
 		case '?':
 			conf_usage(progname);
@@ -565,7 +572,7 @@ int main(int ac, char **av)
 	case oldaskconfig:
 	case oldconfig:
 	case listnewconfig:
-	case oldnoconfig:
+	case olddefconfig:
 		conf_read(NULL);
 		break;
 	case allnoconfig:
@@ -645,7 +652,7 @@ int main(int ac, char **av)
 		/* fall through */
 	case oldconfig:
 	case listnewconfig:
-	case oldnoconfig:
+	case olddefconfig:
 	case silentoldconfig:
 		/* Update until a loop caused no more changes */
 		do {
@@ -653,7 +660,7 @@ int main(int ac, char **av)
 			check_conf(&rootmenu);
 		} while (conf_cnt &&
 			 (input_mode != listnewconfig &&
-			  input_mode != oldnoconfig));
+			  input_mode != olddefconfig));
 		break;
 	}
 
diff --git a/misc/tools/kconfig-frontends/frontends/mconf/mconf.c b/misc/tools/kconfig-frontends/frontends/mconf/mconf.c
index f584a281b..53975cf87 100644
--- a/misc/tools/kconfig-frontends/frontends/mconf/mconf.c
+++ b/misc/tools/kconfig-frontends/frontends/mconf/mconf.c
@@ -236,16 +236,19 @@ search_help[] = N_(
 	"Result:\n"
 	"-----------------------------------------------------------------\n"
 	"Symbol: FOO [=m]\n"
+	"Type  : tristate\n"
 	"Prompt: Foo bus is used to drive the bar HW\n"
-	"Defined at drivers/pci/Kconfig:47\n"
-	"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
-	"Location:\n"
-	"  -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
-	"    -> PCI support (PCI [=y])\n"
-	"      -> PCI access mode (<choice> [=y])\n"
-	"Selects: LIBCRC32\n"
-	"Selected by: BAR\n"
+	"  Defined at drivers/pci/Kconfig:47\n"
+	"  Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
+	"  Location:\n"
+	"    -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
+	"      -> PCI support (PCI [=y])\n"
+	"(1)     -> PCI access mode (<choice> [=y])\n"
+	"  Selects: LIBCRC32\n"
+	"  Selected by: BAR\n"
 	"-----------------------------------------------------------------\n"
+	"o The line 'Type:' shows the type of the configuration option for\n"
+	"  this symbol (boolean, tristate, string, ...)\n"
 	"o The line 'Prompt:' shows the text used in the menu structure for\n"
 	"  this symbol\n"
 	"o The 'Defined at' line tell at what file / line number the symbol\n"
@@ -254,8 +257,12 @@ search_help[] = N_(
 	"  this symbol to be visible in the menu (selectable)\n"
 	"o The 'Location:' lines tell where in the menu structure this symbol\n"
 	"  is located\n"
-	"    A location followed by a [=y] indicate that this is a selectable\n"
-	"    menu item - and current value is displayed inside brackets.\n"
+	"    A location followed by a [=y] indicates that this is a\n"
+	"    selectable menu item - and the current value is displayed inside\n"
+	"    brackets.\n"
+	"    Press the key in the (#) prefix to jump directly to that\n"
+	"    location. You will be returned to the current search results\n"
+	"    after exiting this new menu.\n"
 	"o The 'Selects:' line tell what symbol will be automatically\n"
 	"  selected if this symbol is selected (y or m)\n"
 	"o The 'Selected by' line tell what symbol has selected this symbol\n"
@@ -273,13 +280,15 @@ static struct menu *current_menu;
 static int child_count;
 static int single_menu_mode;
 static int show_all_options;
-static int saved_x, saved_y;
 
-static void conf(struct menu *menu);
+static void conf(struct menu *menu, struct menu *active_menu);
 static void conf_choice(struct menu *menu);
 static void conf_string(struct menu *menu);
 static void conf_load(void);
 static void conf_save(void);
+static int show_textbox_ext(const char *title, char *text, int r, int c,
+			    int *keys, int *vscroll, int *hscroll,
+			    update_text_fn update_text, void *data);
 static void show_textbox(const char *title, const char *text, int r, int c);
 static void show_helptext(const char *title, const char *text);
 static void show_help(struct menu *menu);
@@ -302,12 +311,47 @@ static void set_config_filename(const char *config_filename)
 }
 
 
+struct search_data {
+	struct list_head *head;
+	struct menu **targets;
+	int *keys;
+};
+
+static void update_text(char *buf, size_t start, size_t end, void *_data)
+{
+	struct search_data *data = _data;
+	struct jump_key *pos;
+	int k = 0;
+
+	list_for_each_entry(pos, data->head, entries) {
+		if (pos->offset >= start && pos->offset < end) {
+			char header[4];
+
+			if (k < JUMP_NB) {
+				int key = '0' + (pos->index % JUMP_NB) + 1;
+
+				sprintf(header, "(%c)", key);
+				data->keys[k] = key;
+				data->targets[k] = pos->target;
+				k++;
+			} else {
+				sprintf(header, "   ");
+			}
+
+			memcpy(buf + pos->offset, header, sizeof(header) - 1);
+		}
+	}
+	data->keys[k] = 0;
+}
+
 static void search_conf(void)
 {
 	struct symbol **sym_arr;
 	struct gstr res;
 	char *dialog_input;
-	int dres;
+	int dres, vscroll = 0, hscroll = 0;
+	bool again;
+
 again:
 	dialog_clear();
 	dres = dialog_inputbox(_("Search Configuration Parameter"),
@@ -330,10 +374,30 @@ again:
 		dialog_input += strlen(CONFIG_);
 
 	sym_arr = sym_re_search(dialog_input);
-	res = get_relations_str(sym_arr);
+	do {
+		LIST_HEAD(head);
+		struct menu *targets[JUMP_NB];
+		int keys[JUMP_NB + 1], i;
+		struct search_data data = {
+			.head = &head,
+			.targets = targets,
+			.keys = keys,
+		};
+
+		res = get_relations_str(sym_arr, &head);
+		dres = show_textbox_ext(_("Search Results"), (char *)
+					str_get(&res), 0, 0, keys, &vscroll,
+					&hscroll, &update_text, (void *)
+					&data);
+		again = false;
+		for (i = 0; i < JUMP_NB && keys[i]; i++)
+			if (dres == keys[i]) {
+				conf(targets[i]->parent, targets[i]);
+				again = true;
+			}
+		str_free(&res);
+	} while (again);
 	free(sym_arr);
-	show_textbox(_("Search Results"), str_get(&res), 0, 0);
-	str_free(&res);
 }
 
 static void build_conf(struct menu *menu)
@@ -514,12 +578,11 @@ conf_childs:
 	indent -= doint;
 }
 
-static void conf(struct menu *menu)
+static void conf(struct menu *menu, struct menu *active_menu)
 {
 	struct menu *submenu;
 	const char *prompt = menu_get_prompt(menu);
 	struct symbol *sym;
-	struct menu *active_menu = NULL;
 	int res;
 	int s_scroll = 0;
 
@@ -562,13 +625,13 @@ static void conf(struct menu *menu)
 				if (single_menu_mode)
 					submenu->data = (void *) (long) !submenu->data;
 				else
-					conf(submenu);
+					conf(submenu, NULL);
 				break;
 			case 't':
 				if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
 					conf_choice(submenu);
 				else if (submenu->prompt->type == P_MENU)
-					conf(submenu);
+					conf(submenu, NULL);
 				break;
 			case 's':
 				conf_string(submenu);
@@ -607,7 +670,7 @@ static void conf(struct menu *menu)
 			if (item_is_tag('t'))
 				sym_toggle_tristate_value(sym);
 			else if (item_is_tag('m'))
-				conf(submenu);
+				conf(submenu, NULL);
 			break;
 		case 7:
 			search_conf();
@@ -619,10 +682,19 @@ static void conf(struct menu *menu)
 	}
 }
 
-static void show_textbox(const char *title, const char *text, int r, int c)
+static int show_textbox_ext(const char *title, char *text, int r, int c, int
+			    *keys, int *vscroll, int *hscroll, update_text_fn
+			    update_text, void *data)
 {
 	dialog_clear();
-	dialog_textbox(title, text, r, c);
+	return dialog_textbox(title, text, r, c, keys, vscroll, hscroll,
+			      update_text, data);
+}
+
+static void show_textbox(const char *title, const char *text, int r, int c)
+{
+	show_textbox_ext(title, (char *) text, r, c, (int []) {0}, NULL, NULL,
+			 NULL, NULL);
 }
 
 static void show_helptext(const char *title, const char *text)
@@ -862,9 +934,6 @@ int main(int ac, char **av)
 			single_menu_mode = 1;
 	}
 
-	initscr();
-
-	getyx(stdscr, saved_y, saved_x);
 	if (init_dialog(NULL)) {
 		fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
 		fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
@@ -873,7 +942,7 @@ int main(int ac, char **av)
 
 	set_config_filename(conf_get_configname());
 	do {
-		conf(&rootmenu);
+		conf(&rootmenu, NULL);
 		res = handle_exit();
 	} while (res == KEY_ESC);
 
diff --git a/misc/tools/kconfig-frontends/frontends/nconf/nconf.c b/misc/tools/kconfig-frontends/frontends/nconf/nconf.c
index 1704a8562..87d4b15da 100644
--- a/misc/tools/kconfig-frontends/frontends/nconf/nconf.c
+++ b/misc/tools/kconfig-frontends/frontends/nconf/nconf.c
@@ -721,7 +721,7 @@ again:
 		dialog_input += strlen(CONFIG_);
 
 	sym_arr = sym_re_search(dialog_input);
-	res = get_relations_str(sym_arr);
+	res = get_relations_str(sym_arr, NULL);
 	free(sym_arr);
 	show_scroll_win(main_window,
 			_("Search Results"), str_get(&res));
diff --git a/misc/tools/kconfig-frontends/libs/lxdialog/dialog.h b/misc/tools/kconfig-frontends/libs/lxdialog/dialog.h
index b5211fce0..ee17a5264 100644
--- a/misc/tools/kconfig-frontends/libs/lxdialog/dialog.h
+++ b/misc/tools/kconfig-frontends/libs/lxdialog/dialog.h
@@ -144,6 +144,7 @@ struct dialog_info {
  */
 extern struct dialog_info dlg;
 extern char dialog_input_result[];
+extern int saved_x, saved_y;		/* Needed in signal handler in mconf.c */
 
 /*
  * Function prototypes
@@ -209,7 +210,13 @@ int first_alpha(const char *string, const char *exempt);
 int dialog_yesno(const char *title, const char *prompt, int height, int width);
 int dialog_msgbox(const char *title, const char *prompt, int height,
 		  int width, int pause);
-int dialog_textbox(const char *title, const char *file, int height, int width);
+
+
+typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void
+			       *_data);
+int dialog_textbox(const char *title, char *tbuf, int initial_height,
+		   int initial_width, int *keys, int *_vscroll, int *_hscroll,
+		   update_text_fn update_text, void *data);
 int dialog_menu(const char *title, const char *prompt,
 		const void *selected, int *s_scroll);
 int dialog_checklist(const char *title, const char *prompt, int height,
diff --git a/misc/tools/kconfig-frontends/libs/lxdialog/textbox.c b/misc/tools/kconfig-frontends/libs/lxdialog/textbox.c
index 4e5de60a0..a48bb93e0 100644
--- a/misc/tools/kconfig-frontends/libs/lxdialog/textbox.c
+++ b/misc/tools/kconfig-frontends/libs/lxdialog/textbox.c
@@ -22,23 +22,25 @@
 #include "dialog.h"
 
 static void back_lines(int n);
-static void print_page(WINDOW * win, int height, int width);
-static void print_line(WINDOW * win, int row, int width);
+static void print_page(WINDOW *win, int height, int width, update_text_fn
+		       update_text, void *data);
+static void print_line(WINDOW *win, int row, int width);
 static char *get_line(void);
 static void print_position(WINDOW * win);
 
 static int hscroll;
 static int begin_reached, end_reached, page_length;
-static const char *buf;
-static const char *page;
+static char *buf;
+static char *page;
 
 /*
  * refresh window content
  */
 static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
-							  int cur_y, int cur_x)
+			     int cur_y, int cur_x, update_text_fn update_text,
+			     void *data)
 {
-	print_page(box, boxh, boxw);
+	print_page(box, boxh, boxw, update_text, data);
 	print_position(dialog);
 	wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
 	wrefresh(dialog);
@@ -47,14 +49,18 @@ static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
 
 /*
  * Display text from a file in a dialog box.
+ *
+ * keys is a null-terminated array
+ * update_text() may not add or remove any '\n' or '\0' in tbuf
  */
-int dialog_textbox(const char *title, const char *tbuf,
-		   int initial_height, int initial_width)
+int dialog_textbox(const char *title, char *tbuf, int initial_height,
+		   int initial_width, int *keys, int *_vscroll, int *_hscroll,
+		   update_text_fn update_text, void *data)
 {
 	int i, x, y, cur_x, cur_y, key = 0;
 	int height, width, boxh, boxw;
-	int passed_end;
 	WINDOW *dialog, *box;
+	bool done = false;
 
 	begin_reached = 1;
 	end_reached = 0;
@@ -63,6 +69,15 @@ int dialog_textbox(const char *title, const char *tbuf,
 	buf = tbuf;
 	page = buf;	/* page is pointer to start of page to be displayed */
 
+	if (_vscroll && *_vscroll) {
+		begin_reached = 0;
+
+		for (i = 0; i < *_vscroll; i++)
+			get_line();
+	}
+	if (_hscroll)
+		hscroll = *_hscroll;
+
 do_resize:
 	getmaxyx(stdscr, height, width);
 	if (height < 8 || width < 8)
@@ -120,9 +135,10 @@ do_resize:
 
 	/* Print first page of text */
 	attr_clear(box, boxh, boxw, dlg.dialog.atr);
-	refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x);
+	refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x, update_text,
+			 data);
 
-	while ((key != KEY_ESC) && (key != '\n')) {
+	while (!done) {
 		key = wgetch(dialog);
 		switch (key) {
 		case 'E':	/* Exit */
@@ -130,16 +146,17 @@ do_resize:
 		case 'X':
 		case 'x':
 		case 'q':
-			delwin(box);
-			delwin(dialog);
-			return 0;
+		case '\n':
+			done = true;
+			break;
 		case 'g':	/* First page */
 		case KEY_HOME:
 			if (!begin_reached) {
 				begin_reached = 1;
 				page = buf;
 				refresh_text_box(dialog, box, boxh, boxw,
-						 cur_y, cur_x);
+						 cur_y, cur_x, update_text,
+						 data);
 			}
 			break;
 		case 'G':	/* Last page */
@@ -149,45 +166,18 @@ do_resize:
 			/* point to last char in buf */
 			page = buf + strlen(buf);
 			back_lines(boxh);
-			refresh_text_box(dialog, box, boxh, boxw,
-					 cur_y, cur_x);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
 			break;
 		case 'K':	/* Previous line */
 		case 'k':
 		case KEY_UP:
-			if (!begin_reached) {
-				back_lines(page_length + 1);
-
-				/* We don't call print_page() here but use
-				 * scrolling to ensure faster screen update.
-				 * However, 'end_reached' and 'page_length'
-				 * should still be updated, and 'page' should
-				 * point to start of next page. This is done
-				 * by calling get_line() in the following
-				 * 'for' loop. */
-				scrollok(box, TRUE);
-				wscrl(box, -1);	/* Scroll box region down one line */
-				scrollok(box, FALSE);
-				page_length = 0;
-				passed_end = 0;
-				for (i = 0; i < boxh; i++) {
-					if (!i) {
-						/* print first line of page */
-						print_line(box, 0, boxw);
-						wnoutrefresh(box);
-					} else
-						/* Called to update 'end_reached' and 'page' */
-						get_line();
-					if (!passed_end)
-						page_length++;
-					if (end_reached && !passed_end)
-						passed_end = 1;
-				}
+			if (begin_reached)
+				break;
 
-				print_position(dialog);
-				wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
-				wrefresh(dialog);
-			}
+			back_lines(page_length + 1);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
 			break;
 		case 'B':	/* Previous page */
 		case 'b':
@@ -196,23 +186,18 @@ do_resize:
 			if (begin_reached)
 				break;
 			back_lines(page_length + boxh);
-			refresh_text_box(dialog, box, boxh, boxw,
-					 cur_y, cur_x);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
 			break;
 		case 'J':	/* Next line */
 		case 'j':
 		case KEY_DOWN:
-			if (!end_reached) {
-				begin_reached = 0;
-				scrollok(box, TRUE);
-				scroll(box);	/* Scroll box region up one line */
-				scrollok(box, FALSE);
-				print_line(box, boxh - 1, boxw);
-				wnoutrefresh(box);
-				print_position(dialog);
-				wmove(dialog, cur_y, cur_x);	/* Restore cursor position */
-				wrefresh(dialog);
-			}
+			if (end_reached)
+				break;
+
+			back_lines(page_length - 1);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
 			break;
 		case KEY_NPAGE:	/* Next page */
 		case ' ':
@@ -221,8 +206,8 @@ do_resize:
 				break;
 
 			begin_reached = 0;
-			refresh_text_box(dialog, box, boxh, boxw,
-					 cur_y, cur_x);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
 			break;
 		case '0':	/* Beginning of line */
 		case 'H':	/* Scroll left */
@@ -237,8 +222,8 @@ do_resize:
 				hscroll--;
 			/* Reprint current page to scroll horizontally */
 			back_lines(page_length);
-			refresh_text_box(dialog, box, boxh, boxw,
-					 cur_y, cur_x);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
 			break;
 		case 'L':	/* Scroll right */
 		case 'l':
@@ -248,11 +233,12 @@ do_resize:
 			hscroll++;
 			/* Reprint current page to scroll horizontally */
 			back_lines(page_length);
-			refresh_text_box(dialog, box, boxh, boxw,
-					 cur_y, cur_x);
+			refresh_text_box(dialog, box, boxh, boxw, cur_y,
+					 cur_x, update_text, data);
 			break;
 		case KEY_ESC:
-			key = on_key_esc(dialog);
+			if (on_key_esc(dialog) == KEY_ESC)
+				done = true;
 			break;
 		case KEY_RESIZE:
 			back_lines(height);
@@ -260,11 +246,31 @@ do_resize:
 			delwin(dialog);
 			on_key_resize();
 			goto do_resize;
+		default:
+			for (i = 0; keys[i]; i++) {
+				if (key == keys[i]) {
+					done = true;
+					break;
+				}
+			}
 		}
 	}
 	delwin(box);
 	delwin(dialog);
-	return key;		/* ESC pressed */
+	if (_vscroll) {
+		const char *s;
+
+		s = buf;
+		*_vscroll = 0;
+		back_lines(page_length);
+		while (s < page && (s = strchr(s, '\n'))) {
+			(*_vscroll)++;
+			s++;
+		}
+	}
+	if (_hscroll)
+		*_hscroll = hscroll;
+	return key;
 }
 
 /*
@@ -301,12 +307,23 @@ static void back_lines(int n)
 }
 
 /*
- * Print a new page of text. Called by dialog_textbox().
+ * Print a new page of text.
  */
-static void print_page(WINDOW * win, int height, int width)
+static void print_page(WINDOW *win, int height, int width, update_text_fn
+		       update_text, void *data)
 {
 	int i, passed_end = 0;
 
+	if (update_text) {
+		char *end;
+
+		for (i = 0; i < height; i++)
+			get_line();
+		end = page;
+		back_lines(height);
+		update_text(buf, page - buf, end - buf, data);
+	}
+
 	page_length = 0;
 	for (i = 0; i < height; i++) {
 		print_line(win, i, width);
@@ -319,7 +336,7 @@ static void print_page(WINDOW * win, int height, int width)
 }
 
 /*
- * Print a new line of text. Called by dialog_textbox() and print_page().
+ * Print a new line of text.
  */
 static void print_line(WINDOW * win, int row, int width)
 {
@@ -357,10 +374,8 @@ static char *get_line(void)
 	end_reached = 0;
 	while (*page != '\n') {
 		if (*page == '\0') {
-			if (!end_reached) {
-				end_reached = 1;
-				break;
-			}
+			end_reached = 1;
+			break;
 		} else if (i < MAX_LEN)
 			line[i++] = *(page++);
 		else {
@@ -373,7 +388,7 @@ static char *get_line(void)
 	if (i <= MAX_LEN)
 		line[i] = '\0';
 	if (!end_reached)
-		page++;		/* move pass '\n' */
+		page++;		/* move past '\n' */
 
 	return line;
 }
diff --git a/misc/tools/kconfig-frontends/libs/lxdialog/util.c b/misc/tools/kconfig-frontends/libs/lxdialog/util.c
index f2375ad7e..109d53117 100644
--- a/misc/tools/kconfig-frontends/libs/lxdialog/util.c
+++ b/misc/tools/kconfig-frontends/libs/lxdialog/util.c
@@ -23,6 +23,9 @@
 
 #include "dialog.h"
 
+/* Needed in signal handler in mconf.c */
+int saved_x, saved_y;
+
 struct dialog_info dlg;
 
 static void set_mono_theme(void)
@@ -273,6 +276,10 @@ int init_dialog(const char *backtitle)
 	int height, width;
 
 	initscr();		/* Init curses */
+
+	/* Get current cursor position for signal handler in mconf.c */
+	getyx(stdscr, saved_y, saved_x);
+
 	getmaxyx(stdscr, height, width);
 	if (height < 19 || width < 80) {
 		endwin();
diff --git a/misc/tools/kconfig-frontends/libs/parser/Makefile.am b/misc/tools/kconfig-frontends/libs/parser/Makefile.am
index ad6e5aa8b..567b1e888 100644
--- a/misc/tools/kconfig-frontends/libs/parser/Makefile.am
+++ b/misc/tools/kconfig-frontends/libs/parser/Makefile.am
@@ -14,7 +14,7 @@ libkconfig_parser_la_LDFLAGS = -release $(KCONFIGPARSER_LIB_VERSION) -no-undefin
 libkconfig_parser_la_LIBADD = $(intl_LIBS)
 
 kconfig_includedir = $(includedir)/kconfig
-kconfig_include_HEADERS = lkc.h expr.h lkc_proto.h
+kconfig_include_HEADERS = list.h lkc.h expr.h lkc_proto.h
 
 BUILT_SOURCES = hconf.c lconf.c
 CLEANFILES = hconf.c lconf.c yconf.c
diff --git a/misc/tools/kconfig-frontends/libs/parser/Makefile.in b/misc/tools/kconfig-frontends/libs/parser/Makefile.in
index 97793927c..7fa4e8507 100644
--- a/misc/tools/kconfig-frontends/libs/parser/Makefile.in
+++ b/misc/tools/kconfig-frontends/libs/parser/Makefile.in
@@ -304,7 +304,7 @@ libkconfig_parser_la_CFLAGS = $(AM_CFLAGS) $(kf_CFLAGS)
 libkconfig_parser_la_LDFLAGS = -release $(KCONFIGPARSER_LIB_VERSION) -no-undefined
 libkconfig_parser_la_LIBADD = $(intl_LIBS)
 kconfig_includedir = $(includedir)/kconfig
-kconfig_include_HEADERS = lkc.h expr.h lkc_proto.h
+kconfig_include_HEADERS = list.h lkc.h expr.h lkc_proto.h
 BUILT_SOURCES = hconf.c lconf.c
 CLEANFILES = hconf.c lconf.c yconf.c
 EXTRA_DIST = yconf.y.patch
diff --git a/misc/tools/kconfig-frontends/libs/parser/expr.h b/misc/tools/kconfig-frontends/libs/parser/expr.h
index d4ecce8bc..cdd48600e 100644
--- a/misc/tools/kconfig-frontends/libs/parser/expr.h
+++ b/misc/tools/kconfig-frontends/libs/parser/expr.h
@@ -12,6 +12,7 @@ extern "C" {
 
 #include <assert.h>
 #include <stdio.h>
+#include "list.h"
 #ifndef __cplusplus
 #include <stdbool.h>
 #endif
@@ -173,6 +174,15 @@ struct menu {
 #define MENU_CHANGED		0x0001
 #define MENU_ROOT		0x0002
 
+struct jump_key {
+	struct list_head entries;
+	size_t offset;
+	struct menu *target;
+	int index;
+};
+
+#define JUMP_NB			9
+
 extern struct file *file_list;
 extern struct file *current_file;
 struct file *lookup_file(const char *name);
diff --git a/misc/tools/kconfig-frontends/libs/parser/list.h b/misc/tools/kconfig-frontends/libs/parser/list.h
new file mode 100644
index 000000000..0ae730be5
--- /dev/null
+++ b/misc/tools/kconfig-frontends/libs/parser/list.h
@@ -0,0 +1,91 @@
+#ifndef LIST_H
+#define LIST_H
+
+/*
+ * Copied from include/linux/...
+ */
+
+#undef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+
+/**
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr:        the pointer to the member.
+ * @type:       the type of the container struct this is embedded in.
+ * @member:     the name of the member within the struct.
+ *
+ */
+#define container_of(ptr, type, member) ({                      \
+	const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+	(type *)( (char *)__mptr - offsetof(type,member) );})
+
+
+struct list_head {
+	struct list_head *next, *prev;
+};
+
+
+#define LIST_HEAD_INIT(name) { &(name), &(name) }
+
+#define LIST_HEAD(name) \
+	struct list_head name = LIST_HEAD_INIT(name)
+
+/**
+ * list_entry - get the struct for this entry
+ * @ptr:	the &struct list_head pointer.
+ * @type:	the type of the struct this is embedded in.
+ * @member:	the name of the list_struct within the struct.
+ */
+#define list_entry(ptr, type, member) \
+	container_of(ptr, type, member)
+
+/**
+ * list_for_each_entry	-	iterate over list of given type
+ * @pos:	the type * to use as a loop cursor.
+ * @head:	the head for your list.
+ * @member:	the name of the list_struct within the struct.
+ */
+#define list_for_each_entry(pos, head, member)				\
+	for (pos = list_entry((head)->next, typeof(*pos), member);	\
+	     &pos->member != (head); 	\
+	     pos = list_entry(pos->member.next, typeof(*pos), member))
+
+/**
+ * list_empty - tests whether a list is empty
+ * @head: the list to test.
+ */
+static inline int list_empty(const struct list_head *head)
+{
+	return head->next == head;
+}
+
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_add(struct list_head *_new,
+			      struct list_head *prev,
+			      struct list_head *next)
+{
+	next->prev = _new;
+	_new->next = next;
+	_new->prev = prev;
+	prev->next = _new;
+}
+
+/**
+ * list_add_tail - add a new entry
+ * @new: new entry to be added
+ * @head: list head to add it before
+ *
+ * Insert a new entry before the specified head.
+ * This is useful for implementing queues.
+ */
+static inline void list_add_tail(struct list_head *_new, struct list_head *head)
+{
+	__list_add(_new, head->prev, head);
+}
+
+#endif
diff --git a/misc/tools/kconfig-frontends/libs/parser/lkc_proto.h b/misc/tools/kconfig-frontends/libs/parser/lkc_proto.h
index 47fe9c340..ef1a7381f 100644
--- a/misc/tools/kconfig-frontends/libs/parser/lkc_proto.h
+++ b/misc/tools/kconfig-frontends/libs/parser/lkc_proto.h
@@ -21,8 +21,10 @@ P(menu_get_root_menu,struct menu *,(struct menu *menu));
 P(menu_get_parent_menu,struct menu *,(struct menu *menu));
 P(menu_has_help,bool,(struct menu *menu));
 P(menu_get_help,const char *,(struct menu *menu));
-P(get_symbol_str, void, (struct gstr *r, struct symbol *sym));
-P(get_relations_str, struct gstr, (struct symbol **sym_arr));
+P(get_symbol_str, void, (struct gstr *r, struct symbol *sym, struct list_head
+			 *head));
+P(get_relations_str, struct gstr, (struct symbol **sym_arr, struct list_head
+				   *head));
 P(menu_get_ext_help,void,(struct menu *menu, struct gstr *help));
 
 /* symbol.c */
diff --git a/misc/tools/kconfig-frontends/libs/parser/menu.c b/misc/tools/kconfig-frontends/libs/parser/menu.c
index 8c2a97e60..e98a05c8e 100644
--- a/misc/tools/kconfig-frontends/libs/parser/menu.c
+++ b/misc/tools/kconfig-frontends/libs/parser/menu.c
@@ -507,10 +507,12 @@ const char *menu_get_help(struct menu *menu)
 		return "";
 }
 
-static void get_prompt_str(struct gstr *r, struct property *prop)
+static void get_prompt_str(struct gstr *r, struct property *prop,
+			   struct list_head *head)
 {
 	int i, j;
-	struct menu *submenu[8], *menu;
+	struct menu *submenu[8], *menu, *location = NULL;
+	struct jump_key *jump;
 
 	str_printf(r, _("Prompt: %s\n"), _(prop->text));
 	str_printf(r, _("  Defined at %s:%d\n"), prop->menu->file->name,
@@ -521,13 +523,44 @@ static void get_prompt_str(struct gstr *r, struct property *prop)
 		str_append(r, "\n");
 	}
 	menu = prop->menu->parent;
-	for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
+	for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
+		bool accessible = menu_is_visible(menu);
+
 		submenu[i++] = menu;
+		if (location == NULL && accessible)
+			location = menu;
+	}
+	if (head && location) {
+		jump = malloc(sizeof(struct jump_key));
+
+		if (menu_is_visible(prop->menu)) {
+			/*
+			 * There is not enough room to put the hint at the
+			 * beginning of the "Prompt" line. Put the hint on the
+			 * last "Location" line even when it would belong on
+			 * the former.
+			 */
+			jump->target = prop->menu;
+		} else
+			jump->target = location;
+
+		if (list_empty(head))
+			jump->index = 0;
+		else
+			jump->index = list_entry(head->prev, struct jump_key,
+						 entries)->index + 1;
+
+		list_add_tail(&jump->entries, head);
+	}
+
 	if (i > 0) {
 		str_printf(r, _("  Location:\n"));
 		for (j = 4; --i >= 0; j += 2) {
 			menu = submenu[i];
-			str_printf(r, "%*c-> %s", j, ' ', _(menu_get_prompt(menu)));
+			if (head && location && menu == location)
+				jump->offset = r->len - 1;
+			str_printf(r, "%*c-> %s", j, ' ',
+				   _(menu_get_prompt(menu)));
 			if (menu->sym) {
 				str_printf(r, " (%s [=%s])", menu->sym->name ?
 					menu->sym->name : _("<choice>"),
@@ -538,7 +571,11 @@ static void get_prompt_str(struct gstr *r, struct property *prop)
 	}
 }
 
-void get_symbol_str(struct gstr *r, struct symbol *sym)
+/*
+ * head is optional and may be NULL
+ */
+void get_symbol_str(struct gstr *r, struct symbol *sym,
+		    struct list_head *head)
 {
 	bool hit;
 	struct property *prop;
@@ -557,7 +594,7 @@ void get_symbol_str(struct gstr *r, struct symbol *sym)
 		}
 	}
 	for_all_prompts(sym, prop)
-		get_prompt_str(r, prop);
+		get_prompt_str(r, prop, head);
 	hit = false;
 	for_all_properties(sym, prop, P_SELECT) {
 		if (!hit) {
@@ -577,14 +614,14 @@ void get_symbol_str(struct gstr *r, struct symbol *sym)
 	str_append(r, "\n\n");
 }
 
-struct gstr get_relations_str(struct symbol **sym_arr)
+struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
 {
 	struct symbol *sym;
 	struct gstr res = str_new();
 	int i;
 
 	for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
-		get_symbol_str(&res, sym);
+		get_symbol_str(&res, sym, head);
 	if (!i)
 		str_append(&res, _("No matches found.\n"));
 	return res;
@@ -603,5 +640,5 @@ void menu_get_ext_help(struct menu *menu, struct gstr *help)
 	}
 	str_printf(help, "%s\n", _(help_text));
 	if (sym)
-		get_symbol_str(help, sym);
+		get_symbol_str(help, sym, NULL);
 }
diff --git a/misc/tools/kconfig-frontends/scripts/ksync.list b/misc/tools/kconfig-frontends/scripts/ksync.list
index 9766b7a05..aa8b9b6fa 100644
--- a/misc/tools/kconfig-frontends/scripts/ksync.list
+++ b/misc/tools/kconfig-frontends/scripts/ksync.list
@@ -21,6 +21,7 @@ scripts/kconfig/expr.c                            -->  libs/parser/expr.c
 scripts/kconfig/expr.h                            -->  libs/parser/expr.h
 scripts/kconfig/zconf.gperf                       -->  libs/parser/hconf.gperf
 scripts/kconfig/zconf.l                           -->  libs/parser/lconf.l
+scripts/kconfig/list.h                            -->  libs/parser/list.h
 scripts/kconfig/lkc.h                             -->  libs/parser/lkc.h
 scripts/kconfig/lkc_proto.h                       -->  libs/parser/lkc_proto.h
 scripts/kconfig/menu.c                            -->  libs/parser/menu.c
diff --git a/misc/tools/kconfig-frontends/scripts/version.sh b/misc/tools/kconfig-frontends/scripts/version.sh
index 57f699c6a..b3d0c6ebe 100755
--- a/misc/tools/kconfig-frontends/scripts/version.sh
+++ b/misc/tools/kconfig-frontends/scripts/version.sh
@@ -38,6 +38,6 @@ esac
 if [ "${plain}" -eq 1 ]; then
     echo "${k_ver_plain}"
 else
-    echo "${k_ver}${k_ver_extra}-${kf_ver}"
+    echo "${k_ver}${k_ver_extra}.${kf_ver}"
 fi