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Commit4cbf733691("arch/xtensa: custom configuration requires an overlay") added a check in arch/arch.mk.xtensa to bail out if a custom Xtensa core is selected but not overlay file is provided. While this is indeed a perfectly valid check to make when building an internal toolchain, with an external toolchain it's entirely possible to build with no overlay file: the toolchain already exists, and there's no overlay to be applied in the context of the Buildroot build. And indeed commit4cbf733691broke some of the runtime test cases that use a custom Xtensa core configuration, with no overlay, to test the toolchains.bootlin.com Xtensa external toolchain. By relaxing the check to only apply to internal toolchain configurations, we fix those test cases. It is to be noted that this still allows a configuration where gdb gets built for a custom core, but with no overlay, so basically that means the fsf variant, which can lead to build or run failures that4cbf733691attempted to fix to begin with. This still covers the most common cases. Finally, it also means being able to build a kernel with no overlay, but this is offset by the fact that the kernel may be already patched with an overlay (as it is possible to specify a custom kernel), which is most probably what people using a custom core would have. Fixes: https://gitlab.com/buildroot.org/buildroot/-/jobs/3282261966 https://gitlab.com/buildroot.org/buildroot/-/jobs/3282261963 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> [yann.morin.1998@free.fr: extend commit log with last two paragraphs] Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches