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On RISC-V, large code model is only compatible with position-depedent code. However, the configure script checks availability of -mcmodel=large before determining whether PIC/PIE is enabled, and disable them. This is problematic with toolchains that enable PIE by default, where check for -mcmodel=large will always fail with, cc1: sorry, unimplemented: code model 'large' with '-fPIC' and -mcmodel=medany will be silently used instead, causing relocation failures at runtime with some memory layouts since -mcmodel=medany requires all data and code to stay within a contiguous 4 GiB range. Let's defer the check for -mcmodel=large until PIC/PIE is ensured disabled. Fixes: f1957dc8a334 (RISC-V: Add to build system) Reported-by: Han Gao <gaohan@iscas.ac.cn> Signed-off-by: Yao Zi <me@ziyao.cc> 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'