kumquat-buildroot/boot/grub2/grub2.mk
Arnout Vandecappelle 890c9e761b grub2: pass target NM, OBJCOPY and STRIP
Fixes https://bugs.busybox.net/show_bug.cgi?id=8256

grub2's build system interprets CC, CFLAGS and CPPFLAGS as for the host
and uses TARGET_CC etc. for the target. However, NM, OBJCOPY and STRIP
are used for the target. We currently pass the host-versions of these
tools as part of $(HOST_CONFIGURE_OPTS).

While we're at it, also pass TARGET_LDFLAGS.

This problem had not been noticed up to now because usually we build on
an x86 machine for the x86 architecture, so the binutils are compatible.
However, this is not true on an i386 when building for x86_64.

Cc: Christophe Bricout <christophebricout@yahoo.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2015-09-20 14:52:19 +02:00

108 lines
3.4 KiB
Makefile

################################################################################
#
# grub2
#
################################################################################
GRUB2_VERSION = 2.00
GRUB2_SITE = $(BR2_GNU_MIRROR)/grub
GRUB2_SOURCE = grub-$(GRUB2_VERSION).tar.xz
GRUB2_LICENSE = GPLv3+
GRUB2_LICENSE_FILES = COPYING
GRUB2_DEPENDENCIES = host-bison host-flex
GRUB2_BUILTIN_MODULES = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_MODULES))
GRUB2_BUILTIN_CONFIG = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_CONFIG))
GRUB2_BOOT_PARTITION = $(call qstrip,$(BR2_TARGET_GRUB2_BOOT_PARTITION))
ifeq ($(BR2_TARGET_GRUB2_I386_PC),y)
GRUB2_IMAGE = $(BINARIES_DIR)/grub.img
GRUB2_CFG = $(TARGET_DIR)/boot/grub/grub.cfg
GRUB2_PREFIX = ($(GRUB2_BOOT_PARTITION))/boot/grub
GRUB2_TUPLE = i386-pc
GRUB2_TARGET = i386
GRUB2_PLATFORM = pc
else ifeq ($(BR2_TARGET_GRUB2_I386_EFI),y)
GRUB2_IMAGE = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootia32.efi
GRUB2_CFG = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
GRUB2_PREFIX = /EFI/BOOT
GRUB2_TUPLE = i386-efi
GRUB2_TARGET = i386
GRUB2_PLATFORM = efi
else ifeq ($(BR2_TARGET_GRUB2_X86_64_EFI),y)
GRUB2_IMAGE = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootx64.efi
GRUB2_CFG = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
GRUB2_PREFIX = /EFI/BOOT
GRUB2_TUPLE = x86_64-efi
GRUB2_TARGET = x86_64
GRUB2_PLATFORM = efi
endif
# Grub2 is kind of special: it considers CC, LD and so on to be the
# tools to build the native tools (i.e to be executed on the build
# machine), and uses TARGET_CC, TARGET_CFLAGS, TARGET_CPPFLAGS,
# TARGET_LDFLAGS to build the bootloader itself. However, to add to
# the confusion, it also uses NM, OBJCOPY and STRIP to build the
# bootloader itself; none of these are used to build the native
# tools.
GRUB2_CONF_ENV = \
$(HOST_CONFIGURE_OPTS) \
CPP="$(HOSTCC) -E" \
TARGET_CC="$(TARGET_CC)" \
TARGET_CFLAGS="$(TARGET_CFLAGS)" \
TARGET_CPPFLAGS="$(TARGET_CPPFLAGS)" \
TARGET_LDFLAGS="$(TARGET_LDFLAGS)" \
NM="$(TARGET_NM)" \
OBJCOPY="$(TARGET_OBJCOPY)" \
STRIP="$(TARGET_STRIP)"
GRUB2_CONF_OPTS = \
--target=$(GRUB2_TARGET) \
--with-platform=$(GRUB2_PLATFORM) \
--disable-grub-mkfont \
--enable-efiemu=no \
--enable-liblzma=no \
--enable-device-mapper=no \
--enable-libzfs=no \
--disable-werror
# We don't want all the native tools and Grub2 modules to be installed
# in the target. So we in fact install everything into the host
# directory, and the image generation process (below) will use the
# grub-mkimage tool and Grub2 modules from the host directory.
GRUB2_INSTALL_TARGET_OPTS = DESTDIR=$(HOST_DIR) install
ifeq ($(BR2_TARGET_GRUB2_I386_PC),y)
define GRUB2_IMAGE_INSTALL_ELTORITO
cat $(HOST_DIR)/usr/lib/grub/$(GRUB2_TUPLE)/cdboot.img $(GRUB2_IMAGE) > \
$(BINARIES_DIR)/grub-eltorito.img
endef
endif
define GRUB2_IMAGE_INSTALLATION
mkdir -p $(dir $(GRUB2_IMAGE))
$(HOST_DIR)/usr/bin/grub-mkimage \
-d $(HOST_DIR)/usr/lib/grub/$(GRUB2_TUPLE) \
-O $(GRUB2_TUPLE) \
-o $(GRUB2_IMAGE) \
-p "$(GRUB2_PREFIX)" \
$(if $(GRUB2_BUILTIN_CONFIG),-c $(GRUB2_BUILTIN_CONFIG)) \
$(GRUB2_BUILTIN_MODULES)
mkdir -p $(dir $(GRUB2_CFG))
$(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG)
$(GRUB2_IMAGE_INSTALL_ELTORITO)
endef
GRUB2_POST_INSTALL_TARGET_HOOKS += GRUB2_IMAGE_INSTALLATION
ifeq ($(GRUB2_PLATFORM),efi)
define GRUB2_EFI_STARTUP_NSH
echo $(notdir $(GRUB2_IMAGE)) > \
$(BINARIES_DIR)/efi-part/startup.nsh
endef
GRUB2_POST_INSTALL_TARGET_HOOKS += GRUB2_EFI_STARTUP_NSH
endif
$(eval $(autotools-package))