The initramfs is not a reall filesystem, so it does not use the
$(rootfs) infrastructure.
As a consequence, the usual rootfs-related variables are not set,
especially the name, type, and dependencies of the (non-)filesystem.
Yet, it is present in the list of rootfs to build, and thus we end
up including it in the output of show-info. But the missing variables
yield an incorrect json:
"": {
"type": "",
"virtual": false,
"version": "",
"licenses": "",
"dl_dir": "",
"install_target": ,
"install_staging": ,
"install_images": ,
"downloads": [ ],
"dependencies": [ ],
"reverse_dependencies": [ ]
},
First, the object key is empty; second, the install_target,
install_staging, and install_images values are empty, which is not
valid (if they were null, that be OK though). Third, this is clearly
the layout of a 'package' entry, not that of a 'rootfs' entry.
An option to fix that would be to actually make use of the rootfs
infra. However, that would mean doing a lot of work for nothing
(there is actually nothing to do, yet the infra would still do a lot
of preparatory and clean up work).
The alternative is pretty simple: declare and set the variables as if
it were a real filesystem, so that show-info can filter it to the
proper layout and can spit out appropriate content (even if fake).
The third option would be to teach show-info (and its internal
implementation, the macro json-info) to ignore specific cases, like
no-name items, or replace empty values with null, or whatnots. This
again would be quite a lot of work for a single occurence.
So we go for the simple faked variables.
We add linux as a dependency, so that the graph-depends also properly
represent the dependency chain, which ends up with something liKe:
ALL
|
v
rootfs-initramfs
| |
v v
linux rootfs-cpio
which is pretty fitting in the end.
Reported-by: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Tested-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit
|
||
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arch | ||
board | ||
boot | ||
configs | ||
docs | ||
fs | ||
linux | ||
package | ||
support | ||
system | ||
toolchain | ||
utils | ||
.defconfig | ||
.flake8 | ||
.gitignore | ||
.gitlab-ci.yml | ||
.gitlab-ci.yml.in | ||
CHANGES | ||
Config.in | ||
Config.in.legacy | ||
COPYING | ||
DEVELOPERS | ||
Makefile | ||
Makefile.legacy | ||
README |
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches