kconfig: add alldefconfig

alldefconfig create a configuration with all values set
to their default value (form the Kconfig files).

This may be useful when we try to use more sensible default
values and may also be used in combination with
the minimal defconfigs.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>

1 files changed, 7 insertions, 0 deletions

diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index ff5c914c0e5c..c8bd33cb3bf7 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -27,6 +27,7 @@ enum input_mode {
         allnoconfig,
         allyesconfig,
         allmodconfig,
+        alldefconfig,
         randconfig,
         defconfig,
         listnewconfig,
@@ -446,6 +447,7 @@ static struct option long_opts[] = {
         {"allnoconfig",     no_argument,       NULL, allnoconfig},
         {"allyesconfig",    no_argument,       NULL, allyesconfig},
         {"allmodconfig",    no_argument,       NULL, allmodconfig},
+        {"alldefconfig",    no_argument,       NULL, alldefconfig},
         {"randconfig",      no_argument,       NULL, randconfig},
         {"listnewconfig",   no_argument,       NULL, listnewconfig},
         {"oldnoconfig",     no_argument,       NULL, oldnoconfig},
@@ -534,6 +536,7 @@ int main(int ac, char **av)
         case allnoconfig:
         case allyesconfig:
         case allmodconfig:
+        case alldefconfig:
         case randconfig:
                 name = getenv("KCONFIG_ALLCONFIG");
                 if (name && !stat(name, &tmpstat)) {
@@ -544,6 +547,7 @@ int main(int ac, char **av)
                 case allnoconfig:       name = "allno.config"; break;
                 case allyesconfig:      name = "allyes.config"; break;
                 case allmodconfig:      name = "allmod.config"; break;
+                case alldefconfig:      name = "alldef.config"; break;
                 case randconfig:        name = "allrandom.config"; break;
                 default: break;
                 }
@@ -578,6 +582,9 @@ int main(int ac, char **av)
         case allmodconfig:
                 conf_set_all_new_symbols(def_mod);
                 break;
+        case alldefconfig:
+                conf_set_all_new_symbols(def_default);
+                break;
         case randconfig:
                 conf_set_all_new_symbols(def_random);
                 break;