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path: root/payloads/external/GRUB2
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2013-12-06Do not export variables to GRUB buildVladimir Serbinenko
Variables in coreboot and not in line with GRUB ones. E.g. HOSTCC is both HOST_CC and BUILD_CC for GRUB (consult INSTALL for more details) and what coreboot calls CC is TARGET_CC for GRUB. Current code plugs this by defining variables explicitly but it has a nasty effect that make stops caring about flags added in makefile itself. Undef as many variables as possible but still pass them to configure for them to have correct effect and keep CC assignment as my make version doesn't undefine it even when instructed to do so. Tested with qemu. Change-Id: I9d18f557138a20ae3918d698dee8f5b5c5738f75 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4310 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2013-11-19Add GRUB2 payload to build systemVladimir Serbinenko
Since a long time GRUB 2 is a viable payload alternative to SeaBIOS and FILO. So make it easy for coreboot users to use GRUB 2 as a payload by integrating it into coreboot’s build system, so it can be selected in Kconfig. As the last GRUB 2 release 2.00 is too old and has several bugs when used as a coreboot payload only allow to build GRUB 2 master until a new GRUB release is done. The downside is, that accidental breakage in GRUB’s upstream does not affect coreboot users. Currently the GRUB 2 payload is built with the default modules which results in an uncompressed size of around 730 kB. Compressed it has a size of 340 kB, so it should be useable with 512 kB flash ROMs. Tested with QEMU. Change-Id: Ie75d5a2cb230390cd5a063d5f6a5d5e3fab6b354 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/4058 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>