Sometimes, post-build or post-image scripts need to reinvoke
Buildroot's make, for example to execute "make printvars".
However, so far post-build/image/fakeroot can't trivially run printvars
in a way that worked for both in-tree and out-of-tree builds. Indeed:
* "make printvars" would work for in-tree builds, but not out of tree
builds
* "make -C ${O} printvars" would work for out-of-tree builds, but not
in-tree builds
* "make -C ${BR2_CONFIG%/*} printvars" works in both cases, but it is
a bit cryptic, and two maintainers did not even immediately think of
it
In order to solve this, this commit exposes $(CONFIG_DIR) to
post-build/image/fakeroot scripts, through the EXTRA_ENV variable.
The documentation is updated accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
[yann.morin.1998@free.fr:
- reference BR2_CONFIG as an exemple
- slightly reword the commit log accordingly
- move the doc for CONFIG_DIR next to that of BR2_CONFIG
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This patch reworks the section on root filesystem customization as follows:
- use labeled list instead of bulleted list to clarify the different methods
- move rootfs overlay and post-build scripts to the top and label them as
recommended.
- split post-image to a separate section, as it is not related to the target
filesystem customization
- line up post-build and post-image explanations, for example regarding
working directory of the script
- general expansion of some of the explanation
- general rewording
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
