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Commitf13477b(linux: config.in: add comment for Arm Cortex-M) added a comment so that the user that the linux kernel may miscompile with binutils 2.29+, when the target is an armv7m CPU. However, the real trigger is a compilation in thumb2 mode, which happens to be the only option for armv7m CPUs. We can't know whether the kernel will be built in arm or thumb2 mode, though, because we do not have that information: it is only available in the Linux' .config file, which we don;t have access to at the time we run our menuconfig. So, relax the conditions under which the comment is made, so that it appears as soon as binutils are >= 2.29 (i.e. not 2.28, which is the oldest we support) for ARM CPUs. [Peter: reword comment] Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Christophe Priouzeau <christophe.priouzeau@st.com> Cc: Laurent GONZALEZ <br22@gezedo.com> Cc: Peter Korsgaard <peter@korsgaard.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Arnout Vandecappelle <arnout@mind.be> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> (cherry picked from commitc2c0623bff) 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 Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches