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Currently, if the user specifies the path to an existing directory as the path to the custom (def)config file (FOO_KCONFIG_FILE), then we happily create a file in there, either 'defconfig' or '.config' (or whatever the .config is named for that package), depending on whether we're saving a defconfig or a full config. So, we could save the file, but then the Buildroot defconfig file that contains that path would no longer be reusable as-is, because we interpret that path as a path to a file. Furthermore, if the directory-portion of FOO_KCONFIG_FILE does not exist yet, the update would fail, because cp does not create missing directory components. So we fix that by adding an explicit test for the directory-ness of the target file, and then an explicit mkdir to create missing directory components. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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