On Clear Linux, the CFLAGS is set and defines a number of aggressive
checks and optimizations. This causes a build failure when generating a
GRUB2 boot loader image using the 'build_grub.sh' script.
Unsetting it within the script allows it to proceed and successfully
build a functional GRUB2 boot loader image to be used with Zephyr.
Fixes: #14289
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
The build_grub.sh script cherry-picks 3 commits from the master branch
of grub because more recent build tools fail to build the latest stable
release (which is 2.02). This solves the problem on Fedora 29 for
example, but is not sufficient for Clear Linux.
This patch modifies the build_grub.sh script to use
grub-2.02-285-g5bc41db75 (latest from master as of 13 of March 2019).
That version compiles 'out-of-the-box' in the latest Ubuntu, Fedora and
Clear Linux.
There are additional tools required on the host system and the
documentation has been updated accordingly.
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Fedora 29 (and possibly other disctributions) are nowadays coming with
very recent versions of gcc (8.x) and binutils. These will cause some
compilation error when running the 'grub_build.sh' script to create a
GRUB2 boot loader image.
Fortunately, both issues have been fixed and merged in the upstream
project. This patch modifies the build script to cherry-pick those to
the local cloned version of grub before building it.
Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Recent versions of GCC won't build grub-2.02 because they're more
pedantic about warnings. This has been fixed upstream but is not
yet part of any release. The build script is modified to apply the
relevant commits before building.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This extends the build_grub.sh script so that it can build 64-bit
Grub UEFI application, and thus enabling us to boot on systems
with 64-bit BIOS.
Also updated the script to checkout the tag grub-2.02 since
v2.02 has been out.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Geoffroy Van Cutsem