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In commit7e0e6e3b86(toolchain/toolchain-external/toolchain-external-bootlin: update to 2023.11-1) the TestGrubX8664EFI fails with this error: # efivar -l traps: efivar[86] trap invalid opcode ip:7fc187f4c7f4 sp:7fff9bbaa930 error:0 in libefivar.so.1.38[7fc187f4c000+16000] Illegal instruction This error can be reproduced by installing other packages like "file". The 2023.11-1 Bootlin toolchains are built for a corei7 CPU [0], which is in fact a Nehalem CPU; we switched to the new names in commit653fa001f3(arch/Config.in.x86: add "newer" names for several Intel x86 CPU variants). This means that the Bootlin toolchains may use Nehalem-specific instructions. The TestGrubX8664EFI test is also setup for BR2_x86_corei7, so our executables will also contain Nehalem instructions. However, the default Qemu x86_64 is not guaranteed to emulate all the instructions specific to Nehalem, causing runtime issues as reported above. A similar issue has been fixed in toolchain-builder by adding Nehalem cpu emulation on the qemu command line [0]. Fixes: https://gitlab.com/buildroot.org/buildroot/-/jobs/6093853712 [0]f2b253732bSigned-off-by: Romain Naour <romain.naour@smile.fr> [yann.morin.1998@free.fr: - reword the commit log to explain corei7 -> Nehalem equivalence - note that the toolchain-builder *and* our test target corei7, thus Nehalem ] Signed-off-by: Yann E. MORIN <yann.morin.1998@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