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Even though that seems weird, the LP64F ABI is only supported when MMU support is enabled. Indeed, as per commit9a51381ced("package/uclibc: prevent config with unsupported RISC-V float ABI"), uClibc does not support LP64F. But uClibc is the only C library that support RISC-V 64-bit noMMU. So the selection of LP64F and !MMU is impossible. Right now this selection causes a build failure as no C library is enabled. This commit fixes this by ensuring we cannot use LP64F when MMU support is not available. Fixes: http://autobuild.buildroot.net/results/6320dcc655f1871eb8bf6a9689bddde7447385f5/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> (cherry picked from commitf7d60ee57d) Signed-off-by: Peter Korsgaard <peter@korsgaard.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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches