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A working GRUB cannot be built with upcoming binutils and GCC, because linker relaxation was added [1] causing new unsupported relocations to appear in modules. So we pass -mno-relax to GCC if it is supported, to disable relaxation and make GRUB forward-compatible with new toolchains. While similar code already exists for sparc64 in configure.ac, sparc64 sets LDFLAGS while LoongArch requires CFLAGS to be set. If we only set LDFLAGS on LoongArch, GCC will still generate relaxation relocations in the .o files, so the sparc64 code cannot be reused. [1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=56576f4a722b7398d35802ecf7d4185c27d6d69b Signed-off-by: Xiaotian Wu <wuxiaotian@loongson.cn> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'