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Sometimes the default GCC and newlib libraries built for a given architecture tuple are not based on the desired ABI. Since ABI definitions are different between architectures, the simplest solution is to allow users to build bare-metal toolchains with --enable-multilib. This way, the libraries for every available ABI will be built and users will be able to select the desired library for their user applications. This patch adds the option BR2_TOOLCHAIN_BARE_METAL_BUILDROOT_MULTILIB to give users the choice to enable multilib, if desired. Please note that when using a string of architecture tuples, this option will apply to all architectures in the string, so it can significantly increase build time. Signed-off-by: Neal Frager <neal.frager@amd.com> Reviewed-by: Jesse Taube <Mr.Bossman075@gmail.com> Signed-off-by: Julien Olivain <ju.o@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