21e69972bf
The kconfig mangling macros currently operate on the caller-supplied
.config file, on the assumption that the caller will always know what
file to mangle.
This was correct so far, as packages would indeed only mangle their
own .config files.
However, the Linux kernel does its mangling based on whether some
other packages are enabled or not. That list of conditional mangling
is getting bigger and bigger with each new package that needs such
mangling, culminating with the pending firewalld one [0]. Furthermore,
this mangling is not accessible to packages in br2-external trees. So
we'll want to have packages provide the mangling commands.
So we'll want the mangling to be done on the Linux' .config file in
the expanding package context, not in the package calling the macros.
But packages do not, and should not have knowledge about where the
.config file is, nor how it is named.
So we make the parameter to specify the .config file to mangle
optional. If it is set, this is what the macros will mangle; if it is
not set, the expanding package's .config file will be used.
This has the added benefit that we do not have to repeat in the
expanding package context the knowledge of how the .config file is
named:
FOO_KCONFIG_DOTCONFIG = .config
define FOO_KCONFIG_FIXUPS_CMDS
$(call KCONFIG_ENABLE_OPT,BLA)
endef
[0] http://lists.busybox.net/pipermail/buildroot/2020-March/278683.html
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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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