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When building with `make -j` and PER_PACKAGE_DIRECTORIES, a race condition occurs between xilinx-prebuilt and u-boot, resulting in the following error. objcopy -O binary -I elf32-little .../images/pmufw.elf .../images/pmufw.bin objcopy: '.../images/pmufw.elf': No such file U-Boot registers a KCONFIG_FIXUP_CMD that uses the pmufw.elf from xilinx-prebuilt. But KCONFIG_FIXUP_CMDS does not use the normal DEPENDENCIES, so xilinx-prebuilt is not guaranteed to have run before fixup. Instead move the `objcopy` call out to a PRE_BUILD_HOOK so it will run after xilinx-prebuilt has finished. Signed-off-by: Brandon Maier <brandon.maier@collins.com> Tested-by: Neal Frager <neal.frager@amd.com> Reviewed-by: Neal Frager <neal.frager@amd.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.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