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| author | Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> | 2013-02-05 07:16:02 +0000 |
|---|---|---|
| committer | Peter Korsgaard <jacmet@sunsite.dk> | 2013-02-05 21:43:51 +0100 |
| commit | 1ed4996346c6504241c7a2c7541fefc914790219 (patch) | |
| tree | 9bb9783b406ea8ea76c915bd5ec2f2ff17d3eec1 /docs | |
| parent | f026d3642d9ea3bcbc85f2f1ab302a3e35eaa0de (diff) | |
| download | buildroot-novena-1ed4996346c6504241c7a2c7541fefc914790219.tar.gz buildroot-novena-1ed4996346c6504241c7a2c7541fefc914790219.zip | |
Make savedefconfig save to a configured file.
Store BR2_DEFCONFIG in .config, and use it to update the original input
defconfig file after updating the configuration. When a config is
created by using the BR2_DEFCONFIG=... option, this is saved in the
.config file; later runs of savedefconfig will update that same location.
It is also possible to configure this place in the interactive
configuration.
The BR2_DEFCONFIG value itself is not saved into the generated
defconfig, since Kconfig considers it at its default. This is
intentional, to avoid hard-coding an absolute path in the defconfig.
It will anyway be set again when the defconfig is used with the
'make BR2_DEFCONFIG=... defconfig' command.
As a side-effect of this change, the *config options have been moved out
of the BR2_HAVE_DOT_CONFIG condition. This doesn't make any functional
difference, because the .config is still not read for the *config targets.
However, the defconfig and savedefconfig targets do need to include
.config now, which makes them slightly slower.
[Peter: slightly tweak help text]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/manual/customize-store.txt | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/docs/manual/customize-store.txt b/docs/manual/customize-store.txt index 298b5e96a..63ea82dcf 100644 --- a/docs/manual/customize-store.txt +++ b/docs/manual/customize-store.txt @@ -20,13 +20,15 @@ Buildroot configuration ^^^^^^^^^^^^^^^^^^^^^^^ For storing the buildroot configuration itself, buildroot offers the -following command: +make savedefconfig+ +following command: +make savedefconfig+. This strips the buildroot configuration down by removing configuration options that are at their default value. The result is stored in a file -called +defconfig+. Copy this file to +foo_defconfig+ in the +configs+ -directory. The configuration can then be rebuilt by running -+make foo_defconfig+ +called +defconfig+. If you want to save it in another place, change +the +BR2_DEFCONFIG+ option, or call make with +make savedefconfig +BR2_DEFCONFIG=<path-to-defconfig>+. The usual place is ++configs/<boardname>_defconfig+. The configuration can then be rebuilt by +running +make <boardname>_defconfig+. Alternatively, you can copy the file to any other place and rebuild with +make defconfig BR2_DEFCONFIG=<path-to-defconfig-file>+. |