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Date: Wed, 14 Apr 2010 11:46:02 +0800
From: Li Zefan <lizf@...fujitsu.com>
To: LKML <linux-kernel@...r.kernel.org>
CC: Andrew Morton <akpm@...ux-foundation.org>,
Randy Dunlap <randy.dunlap@...cle.com>,
Michal Marek <mmarek@...e.cz>, linux-kbuild@...r.kernel.org,
Tim Bird <tim.bird@...sony.com>
Subject: [PATCH 5/6] menuconfig: add support to show hidden options which
have prompts
Usage:
Press <Z> to show all config symbols which have prompts.
Quote Tim Bird:
| I've been bitten by this numerous times. I most often
| use ftrace on ARM, but when I go back to x86, I almost
| always go through a sequence of searching for the
| function graph tracer in the menus, then realizing it's
| completely missing until I disable CC_OPTIMIZE_FOR_SIZE.
|
| Is there any way to have the menu item appear, but be
| unsettable unless the SIZE option is disabled? I'm
| not a Kconfig guru...
I myself found this useful too. For example, I need to test
ftrace/tracing and want to be sure all the tracing features are
enabled, so I enter the "Tracers" menu, and press <Z> to
see if there is any config hidden.
I also noticed gconfig and xconfig have a button "Show all options",
but that's a bit too much, and I think normally what we are not
interested in those configs which have no prompt thus can't be
changed by users.
Exmaple:
--- Tracers
-*- Kernel Function Tracer
- - Kernel Function Graph Tracer
[*] Interrupts-off Latency Tracer
- - Preemption-off Latency Tracer
[*] Sysprof Tracer
Here you can see 2 tracers are not selectable, and then can find
out how to make them selectable.
Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
scripts/kconfig/lkc_proto.h | 3 ++-
scripts/kconfig/lxdialog/menubox.c | 22 +++++++++++-----------
scripts/kconfig/mconf.c | 22 ++++++++++++++++++----
scripts/kconfig/menu.c | 10 ++++++++++
4 files changed, 41 insertions(+), 16 deletions(-)
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index ffeb532..15ab2b4 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -11,7 +11,8 @@ P(conf_set_changed_callback, void,(void (*fn)(void)));
/* menu.c */
P(rootmenu,struct menu,);
-P(menu_is_visible,bool,(struct menu *menu));
+P(menu_is_visible, bool, (struct menu *menu));
+P(menu_has_prompt, bool, (struct menu *menu));
P(menu_get_prompt,const char *,(struct menu *menu));
P(menu_get_root_menu,struct menu *,(struct menu *menu));
P(menu_get_parent_menu,struct menu *,(struct menu *menu));
diff --git a/scripts/kconfig/lxdialog/menubox.c b/scripts/kconfig/lxdialog/menubox.c
index fa9d633..1d60473 100644
--- a/scripts/kconfig/lxdialog/menubox.c
+++ b/scripts/kconfig/lxdialog/menubox.c
@@ -383,6 +383,10 @@ do_resize:
case 'n':
case 'm':
case '/':
+ case 'h':
+ case '?':
+ case 'z':
+ case '\n':
/* save scroll info */
*s_scroll = scroll;
delwin(menu);
@@ -390,8 +394,10 @@ do_resize:
item_set(scroll + choice);
item_set_selected(1);
switch (key) {
+ case 'h':
+ case '?':
+ return 2;
case 's':
- return 3;
case 'y':
return 3;
case 'n':
@@ -402,18 +408,12 @@ do_resize:
return 6;
case '/':
return 7;
+ case 'z':
+ return 8;
+ case '\n':
+ return button;
}
return 0;
- case 'h':
- case '?':
- button = 2;
- case '\n':
- *s_scroll = scroll;
- delwin(menu);
- delwin(dialog);
- item_set(scroll + choice);
- item_set_selected(1);
- return button;
case 'e':
case 'x':
key = KEY_ESC;
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 8413cf3..33f31eb 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -67,13 +67,15 @@ static const char mconf_readme[] = N_(
" there is a delayed response which you may find annoying.\n"
"\n"
" Also, the <TAB> and cursor keys will cycle between <Select>,\n"
-" <Exit> and <Help>\n"
+" <Exit> and <Help>.\n"
"\n"
"o To get help with an item, use the cursor keys to highlight <Help>\n"
-" and Press <ENTER>.\n"
+" and press <ENTER>.\n"
"\n"
" Shortcut: Press <H> or <?>.\n"
"\n"
+"o To show hidden options, press <Z>.\n"
+"\n"
"\n"
"Radiolists (Choice lists)\n"
"-----------\n"
@@ -272,6 +274,7 @@ static int indent;
static struct menu *current_menu;
static int child_count;
static int single_menu_mode;
+static int show_all_options;
static void conf(struct menu *menu);
static void conf_choice(struct menu *menu);
@@ -359,8 +362,16 @@ static void build_conf(struct menu *menu)
int type, tmp, doint = 2;
tristate val;
char ch;
-
- if (!menu_is_visible(menu))
+ bool visible;
+
+ /*
+ * note: menu_is_visible() has side effect that it will
+ * recalc the value of the symbol.
+ */
+ visible = menu_is_visible(menu);
+ if (show_all_options && !menu_has_prompt(menu))
+ return;
+ else if (!show_all_options && !visible)
return;
sym = menu->sym;
@@ -619,6 +630,9 @@ static void conf(struct menu *menu)
case 7:
search_conf();
break;
+ case 8:
+ show_all_options = !show_all_options;
+ break;
}
}
}
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 6761055..e150176 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -390,6 +390,13 @@ void menu_finalize(struct menu *parent)
}
}
+bool menu_has_prompt(struct menu *menu)
+{
+ if (!menu->prompt)
+ return false;
+ return true;
+}
+
bool menu_is_visible(struct menu *menu)
{
struct menu *child;
@@ -398,6 +405,7 @@ bool menu_is_visible(struct menu *menu)
if (!menu->prompt)
return false;
+
sym = menu->sym;
if (sym) {
sym_calc_value(sym);
@@ -407,12 +415,14 @@ bool menu_is_visible(struct menu *menu)
if (visible != no)
return true;
+
if (!sym || sym_get_tristate_value(menu->sym) == no)
return false;
for (child = menu->list; child; child = child->next)
if (menu_is_visible(child))
return true;
+
return false;
}
--
1.6.3
--
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