This adds an "olddefconfig" build target, which updates a .config file
filling any any absent symbols with the Kconfig default value (note:
not the architecture defconfig value).
Similar to oldnoconfig, this option is useful for build systems
when dealing with config fragments.
CC: gthelen@xxxxxxxxxx
CC: tartler@xxxxxxxxx
CC: Dmitry Fink <Dmitry.Fink@xxxxxxxx>
CC: Darren Hart <dvhart@xxxxxxxxxxxxxxx>
CC: Eric B Munson <ebmunson@xxxxxxxxxx>
CC: Bruce Ashfield <Bruce.Ashfield@xxxxxxxxxxxxx>
CC: Michal Marek <mmarek@xxxxxxx>
CC: linux-kbuild@xxxxxxxxxxxxxxx
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
scripts/kconfig/Makefile | 2 +-
scripts/kconfig/conf.c | 4 ++++
2 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 82d2eb2..c238f3e 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -103,7 +103,7 @@ allnoconfig allyesconfig allmodconfig alldefconfig randconfig: $(obj)/conf
PHONY += listnewconfig oldnoconfig savedefconfig defconfig
-listnewconfig oldnoconfig: $(obj)/conf
+listnewconfig oldnoconfig olddefconfig: $(obj)/conf
$< --$@ $(Kconfig)
savedefconfig: $(obj)/conf
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index f208f90..ab7bc68 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -33,6 +33,7 @@ enum input_mode {
savedefconfig,
listnewconfig,
oldnoconfig,
+ olddefconfig,
} input_mode = oldaskconfig;
static int indent = 1;
@@ -455,6 +456,7 @@ static struct option long_opts[] = {
{"randconfig", no_argument, NULL, randconfig},
{"listnewconfig", no_argument, NULL, listnewconfig},
{"oldnoconfig", no_argument, NULL, oldnoconfig},
+ {"olddefconfig", no_argument, NULL, olddefconfig},
{NULL, 0, NULL, 0}
};
@@ -566,6 +568,7 @@ int main(int ac, char **av)
case oldconfig:
case listnewconfig:
case oldnoconfig:
+ case olddefconfig:
conf_read(NULL);
break;
case allnoconfig:
@@ -624,6 +627,7 @@ int main(int ac, char **av)
conf_set_all_new_symbols(def_random);
break;
case defconfig:
+ case olddefconfig:
conf_set_all_new_symbols(def_default);
break;
case savedefconfig:
--
1.7.3.2.146.gca209
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