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Add support to gcc-bare-metal to support multiple architecture tuples with the BR2_TOOLCHAIN_BARE_METAL_BUILDROOT_ARCH string. To do this, custom configure, build and install commands are needed, so that each step goes through a loop of the architecture tuples in the list. To keep consistency with autotools, all the relevant host configurations have been copied into the HOST_GCC_BARE_METAL_CONF_OPTS while removing any configurations that do not apply to gcc and removing redundant configs. autotools redundant configs covered by $(HOST_CONFIGURE_OPTS): CFLAGS="$$(HOST_CFLAGS)" LDFLAGS="$$(HOST_LDFLAGS)" autotools configs not applicable to gcc: --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --disable-debug --with-xmlto=no --with-fop=no --disable-nls While we're at it: the following configuration option was incorrect: --disable-initfini_array -> --disable-initfini-array configure converts - to _ anyway so it makes no difference, but it's better to be consistent. Signed-off-by: Neal Frager <neal.frager@amd.com> [Arnout: keep --disable-libstdcxx-pch and better explanation for --disable-initfini-array] Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
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