[Buildroot] [PATCH 12 of 13] manual/user guide/customization: rework 'step-by-step instructions'
Thomas De Schampheleire
patrickdepinguin at gmail.com
Thu Sep 18 19:39:35 UTC 2014
This patch reworks the section 'Step-by-step instructions for storing
configuration' as follows:
- rename into 'Quick guide to storing your project-specific customizations'
and hence make it serve as a summary to the chapter
- change the introduction to make this clear
- update paths to line-up with section 'recommended directory structure'
- recommend BR2_GLOBAL_PATCH_DIR, as is done in the section on adding
patches.
- mention how to add packages in a project-specific directory (to be
expanded in another patch)
- minor rewording
- rename file into customize-quick-guide.txt
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire at gmail.com>
---
docs/manual/customize-quick-guide.txt | 57 ++++++++++++++++----------
docs/manual/customize.txt | 2 +-
2 files changed, 36 insertions(+), 23 deletions(-)
diff --git a/docs/manual/customize-store.txt b/docs/manual/customize-quick-guide.txt
rename from docs/manual/customize-store.txt
rename to docs/manual/customize-quick-guide.txt
--- a/docs/manual/customize-store.txt
+++ b/docs/manual/customize-quick-guide.txt
@@ -1,18 +1,17 @@
// -*- mode:doc; -*-
// vim: set syntax=asciidoc:
-=== Step-by-step instructions for storing configuration
+=== Quick guide to storing your project-specific customizations
-To store the configuration for a specific product, device or
-application, it is advisable to use the same conventions as for the
-board support: put the buildroot defconfig in the +configs+ directory,
-and any other files in a subdirectory of the +boards+ directory. This
-section gives step-by-step instructions about how to do that. Of course,
-you can skip the steps that are not relevant for your use case.
+Earlier in this chapter, the different methods for making
+project-specific customizations have been described. This section will
+now summarize all this by providing step-by-step instructions to storing your
+project-specific customizations. Clearly, the steps that are not relevant to
+your project can be skipped.
1. +make menuconfig+ to configure toolchain, packages and kernel.
1. +make linux-menuconfig+ to update the kernel config, similar for
- other configuration.
+ other configuration like busybox, uclibc, ...
1. +mkdir -p board/<manufacturer>/<boardname>+
1. Set the following options to +board/<manufacturer>/<boardname>/<package>.config+
(as far as they are relevant):
@@ -25,27 +24,41 @@
* +make linux-update-defconfig+
* +make busybox-update-config+
* +make uclibc-update-config+
- * +cp <output>/build/at91bootstrap3-*/.config board/<manufacturer>/<boardname>/at91bootstrap3.config+
+ * +cp <output>/build/at91bootstrap3-*/.config
+ board/<manufacturer>/<boardname>/at91bootstrap3.config+
* +make barebox-update-defconfig+
-1. Create +board/<manufacturer>/<boardname>/fs-overlay/+ and fill it
+1. Create +board/<manufacturer>/<boardname>/rootfs-overlay/+ and fill it
with additional files you need on your rootfs, e.g.
- +board/<manufacturer>/<boardname>/fs-overlay/etc/inittab+.
+ +board/<manufacturer>/<boardname>/rootfs-overlay/etc/inittab+.
Set +BR2_ROOTFS_OVERLAY+
- to +board/<manufacturer>/<boardname>/fs-overlay+.
+ to +board/<manufacturer>/<boardname>/rootfs-overlay+.
1. Create a post-build script
- +board/<manufacturer>/<boardname>/post-build.sh+. Set
+ +board/<manufacturer>/<boardname>/post_build.sh+. Set
+BR2_ROOTFS_POST_BUILD_SCRIPT+ to
- +board/<manufacturer>/<boardname>/post-build.sh+
+ +board/<manufacturer>/<boardname>/post_build.sh+
1. If additional setuid permissions have to be set or device nodes have
to be created, create +board/<manufacturer>/<boardname>/device_table.txt+
and add that path to +BR2_ROOTFS_DEVICE_TABLE+.
+1. If additional user accounts have to be created, create
+ +board/<manufacturer>/<boardname>/users_table.txt+ and add that path
+ to +BR2_ROOTFS_USERS_TABLES+.
+1. To add custom patches to certain packages, set +BR2_GLOBAL_PATCH_DIR+
+ to +board/<manufacturer>/<boardname>/patches/+ and add your patches
+ for each package in a subdirectory named after the package. Each
+ patch should be called +<packagename>-<num>-<description>.patch+.
+1. Specifically for the Linux kernel, there also exists the option
+ +BR2_LINUX_KERNEL_PATCH+ with as main advantage that it can also
+ download patches from a URL. If you do not need this,
+ +BR2_GLOBAL_PATCH_DIR+ is preferred. U-Boot, Barebox, at91bootstrap
+ and at91bootstrap3 also have separate options, but these do not
+ provide any advantage over +BR2_GLOBAL_PATCH_DIR+ and will likely be
+ removed in the future.
+1. If you need to add project-specific packages, create
+ +package/<manufacturer>/+ and place your packages in that
+ directory. Create an overall +<manufacturer>.mk+ file that
+ includes the +.mk+ files of all your packages. Create an overall
+ +Config.in+ file that sources the +Config.in+ files of all your
+ packages. Include this +Config.in+ file from Buildroot's
+ +package/Config.in+ file.
1. +make savedefconfig+ to save the buildroot configuration.
1. +cp defconfig configs/<boardname>_defconfig+
-1. To add patches to the linux build, set +BR2_LINUX_KERNEL_PATCH+ to
- +board/<manufacturer>/<boardname>/patches/linux/+ and add your
- patches in that directory. Each patch should be called
- +linux-<num>-<description>.patch+. Similar for U-Boot, barebox,
- at91bootstrap and at91bootstrap3.
-1. If you need modifications to other packages, or if you need to add
- packages, do that directly in the +packages/+ directory, following the
- instructions in xref:adding-packages[].
diff --git a/docs/manual/customize.txt b/docs/manual/customize.txt
--- a/docs/manual/customize.txt
+++ b/docs/manual/customize.txt
@@ -57,4 +57,4 @@
include::customize-packages.txt[]
-include::customize-store.txt[]
+include::customize-quick-guide.txt[]
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