[<prev] [next>] [day] [month] [year] [list]
Message-ID: <20250629184837.411733-1-masahiroy@kernel.org>
Date: Mon, 30 Jun 2025 03:48:31 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kbuild@...r.kernel.org
Cc: Masahiro Yamada <masahiroy@...nel.org>,
linux-kernel@...r.kernel.org
Subject: [PATCH] kconfig: add a function to dump all menu entries in a tree-like format
This is useful for debugging purposes. menu_finalize() re-parents menu
entries, and this function can be used to dump the final structure of
the menu tree.
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---
scripts/kconfig/lkc.h | 1 +
scripts/kconfig/menu.c | 74 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 75 insertions(+)
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 37b606c74bff..56548efc14d7 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -102,6 +102,7 @@ struct menu *menu_get_menu_or_parent_menu(struct menu *menu);
int get_jump_key_char(void);
struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head);
void menu_get_ext_help(struct menu *menu, struct gstr *help);
+void menu_dump(void);
/* symbol.c */
void sym_clear_all_valid(void);
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index a5e5b4fdcd93..0f1a6513987c 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -788,3 +788,77 @@ void menu_get_ext_help(struct menu *menu, struct gstr *help)
if (sym)
get_symbol_str(help, sym, NULL);
}
+
+/**
+ * menu_dump - dump all menu entries in a tree-like format
+ */
+void menu_dump(void)
+{
+ struct menu *menu = &rootmenu;
+ unsigned long long bits = 0;
+ int indent = 0;
+
+ while (menu) {
+
+ for (int i = indent - 1; i >= 0; i--) {
+ if (bits & (1ULL << i)) {
+ if (i > 0)
+ printf("| ");
+ else
+ printf("|-- ");
+ } else {
+ if (i > 0)
+ printf(" ");
+ else
+ printf("`-- ");
+ }
+ }
+
+ switch (menu->type) {
+ case M_CHOICE:
+ printf("choice \"%s\"\n", menu->prompt->text);
+ break;
+ case M_COMMENT:
+ printf("comment \"%s\"\n", menu->prompt->text);
+ break;
+ case M_IF:
+ printf("if\n");
+ break;
+ case M_MENU:
+ printf("menu \"%s\"", menu->prompt->text);
+ if (!menu->sym) {
+ printf("\n");
+ break;
+ }
+ printf(" + ");
+ /* fallthrough */
+ case M_NORMAL:
+ printf("symbol %s\n", menu->sym->name);
+ break;
+ }
+ if (menu->list) {
+ bits <<= 1;
+ menu = menu->list;
+ if (menu->next)
+ bits |= 1;
+ else
+ bits &= ~1;
+ indent++;
+ continue;
+ }
+
+ while (menu && !menu->next) {
+ menu = menu->parent;
+ bits >>= 1;
+ indent--;
+ }
+
+ if (menu) {
+ menu = menu->next;
+ if (menu->next)
+ bits |= 1;
+ else
+ bits &= ~1;
+ }
+ }
+}
--
2.43.0
Powered by blists - more mailing lists