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Add GRUB2 payload to build system

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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>
This commit is contained in:
Vladimir Serbinenko
2013-11-14 12:10:08 +01:00
committed by Stefan Reinauer
parent c37b05c413
commit 113a366848
4 changed files with 85 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/arch/x86/Makefile.inc
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@@ -48,6 +48,9 @@ endif
ifeq ($(CONFIG_PAYLOAD_FILO),y)
COREBOOT_ROM_DEPENDENCIES+=filo
endif
ifeq ($(CONFIG_PAYLOAD_GRUB2),y)
COREBOOT_ROM_DEPENDENCIES+=grub2
endif
extract_nth=$(word $(1), $(subst |, ,$(2)))
@@ -113,6 +116,12 @@ ifeq ($(CONFIG_PAYLOAD_FILO),y)
@printf " PAYLOAD FILO (internal, compression: $(CBFS_PAYLOAD_COMPRESS_FLAG))\n"
$(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_PAYLOAD_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG)
endif
ifeq ($(CONFIG_PAYLOAD_GRUB2),y)
@printf " PAYLOAD GRUB2 (internal, compression: $(CBFS_PAYLOAD_COMPRESS_FLAG))\n"
$(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_PAYLOAD_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG)
endif
ifeq ($(CONFIG_PAYLOAD_TIANOCORE),y)
@printf " PAYLOAD Tiano Core (compression: $(CBFS_PAYLOAD_COMPRESS_FLAG))\n"
$(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_PAYLOAD_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG)
@@ -440,3 +449,10 @@ filo:
CONFIG_FILO_MASTER=$(CONFIG_FILO_MASTER) \
CONFIG_FILO_STABLE=$(CONFIG_FILO_STABLE)
grub2:
$(MAKE) -C payloads/external/GRUB2 -f Makefile.inc \
HOSTCC="$(HOSTCC)" \
CC="$(CC)" LD="$(LD)" OBJDUMP="$(OBJDUMP)" \
OBJCOPY="$(OBJCOPY)" STRIP="$(STRIP)" \
CONFIG_GRUB2_MASTER=$(CONFIG_GRUB2_MASTER)