Add GRUB2 payload to build system
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>
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@ -4,6 +4,7 @@
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build/
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coreboot-builds/
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payloads/external/FILO/filo/
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payloads/external/GRUB2/grub2/
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payloads/external/SeaBIOS/seabios/
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util/crossgcc/acpica-unix-*/
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util/crossgcc/binutils-*/
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@ -0,0 +1,43 @@
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TAG-$(CONFIG_GRUB2_MASTER)=
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NAME-$(CONFIG_GRUB2_MASTER)=HEAD
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unexport KCONFIG_AUTOCONFIG
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all: grub2
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checkout:
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echo " GIT GRUB2 $(NAME-y)"
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test -d grub2 || \
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git clone git://git.sv.gnu.org/grub.git grub2
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cd grub2 && \
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git checkout master && \
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git pull; \
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test -n "$(TAG-y)" && \
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git branch -f $(NAME-y) $(TAG-y) && \
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git checkout $(NAME-y) || true
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config: checkout
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echo " CONFIG GRUB2 $(NAME-y)"
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rm -rf grub2/build
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mkdir grub2/build
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cd grub2 && ./autogen.sh
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cd grub2/build && ../configure BUILD_CC="$(HOSTCC)" CC="$(HOSTCC)" \
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TARGET_CC="$(CC)" \
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TARGET_OBJCOPY="$(OBJCOPY)" TARGET_STRIP="$(STRIP)" CFLAGS=-O2 TARGET_CFLAGS=-Os --with-platform=coreboot
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grub2: config
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echo " MAKE GRUB2 $(NAME-y)"
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$(MAKE) -C grub2/build BUILD_CC="$(HOSTCC)" CC="$(HOSTCC)" \
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TARGET_CC="$(CC)" TARGET_OBJCOPY="$(OBJCOPY)" \
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TARGET_STRIP="$(STRIP)" CFLAGS=-O2 TARGET_CFLAGS=-Os \
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&& $(MAKE) -C grub2/build BUILD_CC="$(HOSTCC)" CC="$(HOSTCC)" \
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TARGET_CC="$(CC)" TARGET_OBJCOPY="$(OBJCOPY)" TARGET_STRIP="$(STRIP)" \
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CFLAGS=-O2 TARGET_CFLAGS=-Os default_payload.elf
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clean:
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test -d grub2 && $(MAKE) -C grub2 clean || exit 0
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distclean:
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rm -rf grub2
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.PHONY: checkout config grub2 clean distclean
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26
src/Kconfig
26
src/Kconfig
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@ -569,6 +569,15 @@ config PAYLOAD_FILO
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See http://coreboot.org/Payloads for more information.
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config PAYLOAD_GRUB2
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bool "GRUB2"
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help
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Select this option if you want to build a coreboot image
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with a GRUB2 payload. If you don't know what this is
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about, just leave it enabled.
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See http://coreboot.org/Payloads for more information.
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config PAYLOAD_TIANOCORE
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bool "Tiano Core"
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help
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@ -605,6 +614,17 @@ config SEABIOS_PS2_TIMEOUT
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after powering on. This specifies how long SeaBIOS will wait for the
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keyboard controller to become ready before giving up.
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choice
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prompt "GRUB2 version"
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default GRUB2_MASTER
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depends on PAYLOAD_GRUB2
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config GRUB2_MASTER
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bool "HEAD"
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help
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Newest GRUB2 version
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endchoice
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choice
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prompt "FILO version"
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default FILO_STABLE
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@ -642,6 +662,10 @@ config PAYLOAD_FILE
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depends on PAYLOAD_FILO
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default "payloads/external/FILO/filo/build/filo.elf"
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config PAYLOAD_FILE
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depends on PAYLOAD_GRUB2
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default "payloads/external/GRUB2/grub2/build/default_payload.elf"
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config PAYLOAD_FILE
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string "Tianocore firmware volume"
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depends on PAYLOAD_TIANOCORE
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@ -653,7 +677,7 @@ config PAYLOAD_FILE
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config COMPRESSED_PAYLOAD_LZMA
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bool "Use LZMA compression for payloads"
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default y
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depends on PAYLOAD_ELF || PAYLOAD_SEABIOS || PAYLOAD_FILO || PAYLOAD_TIANOCORE
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depends on PAYLOAD_ELF || PAYLOAD_SEABIOS || PAYLOAD_FILO || PAYLOAD_TIANOCORE || PAYLOAD_GRUB2
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help
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In order to reduce the size payloads take up in the ROM chip
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coreboot can compress them using the LZMA algorithm.
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@ -48,6 +48,9 @@ endif
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ifeq ($(CONFIG_PAYLOAD_FILO),y)
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COREBOOT_ROM_DEPENDENCIES+=filo
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endif
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ifeq ($(CONFIG_PAYLOAD_GRUB2),y)
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COREBOOT_ROM_DEPENDENCIES+=grub2
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endif
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extract_nth=$(word $(1), $(subst |, ,$(2)))
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@ -113,6 +116,12 @@ ifeq ($(CONFIG_PAYLOAD_FILO),y)
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@printf " PAYLOAD FILO (internal, compression: $(CBFS_PAYLOAD_COMPRESS_FLAG))\n"
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$(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_PAYLOAD_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG)
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endif
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ifeq ($(CONFIG_PAYLOAD_GRUB2),y)
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@printf " PAYLOAD GRUB2 (internal, compression: $(CBFS_PAYLOAD_COMPRESS_FLAG))\n"
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$(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_PAYLOAD_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG)
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endif
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ifeq ($(CONFIG_PAYLOAD_TIANOCORE),y)
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@printf " PAYLOAD Tiano Core (compression: $(CBFS_PAYLOAD_COMPRESS_FLAG))\n"
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$(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_PAYLOAD_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG)
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CONFIG_FILO_MASTER=$(CONFIG_FILO_MASTER) \
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CONFIG_FILO_STABLE=$(CONFIG_FILO_STABLE)
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grub2:
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$(MAKE) -C payloads/external/GRUB2 -f Makefile.inc \
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HOSTCC="$(HOSTCC)" \
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CC="$(CC)" LD="$(LD)" OBJDUMP="$(OBJDUMP)" \
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OBJCOPY="$(OBJCOPY)" STRIP="$(STRIP)" \
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CONFIG_GRUB2_MASTER=$(CONFIG_GRUB2_MASTER)
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