Hi Michal,
On Wed, 6 Aug 2014 11:10:14 +0200 Michal Simek michal.simek@xilinx.com wrote:
Based on steps below - defconfigs are both empty. Linux kernel is taking .config from /boot/config-`uname -r`.
Yes, but the .config of U-Boot is not installed anywhere in the host PC. I guess that is why DEFCONFIG_LIST seems meaningless...
I have to admit I am still searching for the usage of this option.
Maybe I do something wrong and Kconfig handles it differently but currently I can't see a reason to have this option there.
I don't think you did anything wrong.
[u-boot]$ make mrproper [u-boot]$ make savedefconfig HOSTCC scripts/basic/fixdep HOSTCC scripts/kconfig/conf.o SHIPPED scripts/kconfig/zconf.tab.c SHIPPED scripts/kconfig/zconf.lex.c SHIPPED scripts/kconfig/zconf.hash.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf scripts/kconfig/conf --savedefconfig=defconfig Kconfig # # using defaults found in configs/sandbox_defconfig # [u-boot]$ cat defconfig
In this case, savedefconfig was done based on configs/sandbox_defconfig which is empty for now, but which will have more options in the future.
[u-boot]$ vim Kconfig [u-boot]$ git diff diff --git a/Kconfig b/Kconfig index 9e77a6e28b46..1a3864557df4 100644 --- a/Kconfig +++ b/Kconfig @@ -12,12 +12,6 @@ config KCONFIG_OBJDIR string option env="KCONFIG_OBJDIR"
-config DEFCONFIG_LIST
stringdepends on !SPL_BUILDoption defconfig_listdefault "configs/sandbox_defconfig"menu "General setup"
config SPL_BUILD [u-boot]$ make mrproper CLEAN scripts/basic CLEAN scripts/kconfig [u-boot]$ make savedefconfig HOSTCC scripts/basic/fixdep HOSTCC scripts/kconfig/conf.o SHIPPED scripts/kconfig/zconf.tab.c SHIPPED scripts/kconfig/zconf.lex.c SHIPPED scripts/kconfig/zconf.hash.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf scripts/kconfig/conf --savedefconfig=defconfig Kconfig [u-boot]$ cat defconfig [u-boot]$
Whereas, this case, savedefconfig failed, that is why the file is empty.
Best Regards Masahiro Yamada