################################################################################ # # syslinux to make target msdos/iso9660 filesystems bootable # ################################################################################ SYSLINUX_VERSION = 6.03 SYSLINUX_SOURCE = syslinux-$(SYSLINUX_VERSION).tar.xz SYSLINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/boot/syslinux SYSLINUX_LICENSE = GPL-2.0+ SYSLINUX_LICENSE_FILES = COPYING SYSLINUX_INSTALL_IMAGES = YES # host-util-linux needed to provide libuuid when building host tools SYSLINUX_DEPENDENCIES = host-nasm host-upx util-linux host-util-linux ifeq ($(BR2_TARGET_SYSLINUX_LEGACY_BIOS),y) SYSLINUX_TARGET += bios endif # The syslinux build system must be forced to use Buildroot's gnu-efi # package by setting EFIINC, LIBDIR and LIBEFI. Otherwise, it uses its # own copy of gnu-efi included in syslinux's sources since 6.03 # release. ifeq ($(BR2_TARGET_SYSLINUX_EFI),y) ifeq ($(BR2_ARCH_IS_64),y) SYSLINUX_EFI_BITS = efi64 else SYSLINUX_EFI_BITS = efi32 endif # 64-bit SYSLINUX_DEPENDENCIES += gnu-efi SYSLINUX_TARGET += $(SYSLINUX_EFI_BITS) SYSLINUX_EFI_ARGS = \ EFIINC=$(STAGING_DIR)/usr/include/efi \ LIBDIR=$(STAGING_DIR)/usr/lib \ LIBEFI=$(STAGING_DIR)/usr/lib/libefi.a endif # EFI # The syslinux tarball comes with pre-compiled binaries. # Since timestamps might not be in the correct order, a rebuild is # not always triggered for all the different images. # Cleanup the mess even before we attempt a build, so we indeed # build everything from source. define SYSLINUX_CLEANUP rm -rf $(@D)/bios $(@D)/efi32 $(@D)/efi64 endef SYSLINUX_POST_PATCH_HOOKS += SYSLINUX_CLEANUP # syslinux build system has no convenient way to pass CFLAGS, # and the internal zlib should take precedence so -I shouldn't # be used. define SYSLINUX_BUILD_CMDS $(TARGET_MAKE_ENV) $(MAKE1) \ CC="$(TARGET_CC)" \ LD="$(TARGET_LD)" \ NASM="$(HOST_DIR)/bin/nasm" \ CC_FOR_BUILD="$(HOSTCC)" \ CFLAGS_FOR_BUILD="$(HOST_CFLAGS)" \ LDFLAGS_FOR_BUILD="$(HOST_LDFLAGS)" \ $(SYSLINUX_EFI_ARGS) -C $(@D) $(SYSLINUX_TARGET) endef # While the actual bootloader is compiled for the target, several # utilities for installing the bootloader are meant for the host. # Repeat the target, otherwise syslinux will try to build everything # Repeat LD (and CC) as it happens that some binaries are linked at # install-time. define SYSLINUX_INSTALL_TARGET_CMDS $(TARGET_MAKE_ENV) $(MAKE1) $(SYSLINUX_EFI_ARGS) INSTALLROOT=$(HOST_DIR) \ CC="$(TARGET_CC)" \ LD="$(TARGET_LD)" \ -C $(@D) $(SYSLINUX_TARGET) install endef # That 'syslinux' binary is an installer actually built for the target. # However, buildroot makes no usage of it, so better delete it than have it # installed at the wrong place define SYSLINUX_POST_INSTALL_CLEANUP rm -rf $(HOST_DIR)/bin/syslinux endef SYSLINUX_POST_INSTALL_TARGET_HOOKS += SYSLINUX_POST_INSTALL_CLEANUP SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_ISOLINUX) += bios/core/isolinux.bin SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_PXELINUX) += bios/core/pxelinux.bin SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_MBR) += bios/mbr/mbr.bin SYSLINUX_IMAGES-$(BR2_TARGET_SYSLINUX_EFI) += $(SYSLINUX_EFI_BITS)/efi/syslinux.efi SYSLINUX_C32 = $(call qstrip,$(BR2_TARGET_SYSLINUX_C32)) # We install the c32 modules from the host-installed tree, where they # are all neatly installed in a single location, while they are # scattered around everywhere in the build tree. define SYSLINUX_INSTALL_IMAGES_CMDS for i in $(SYSLINUX_IMAGES-y); do \ $(INSTALL) -D -m 0755 $(@D)/$$i $(BINARIES_DIR)/syslinux/$${i##*/}; \ done for i in $(SYSLINUX_C32); do \ $(INSTALL) -D -m 0755 $(HOST_DIR)/share/syslinux/$${i} \ $(BINARIES_DIR)/syslinux/$${i}; \ done endef $(eval $(generic-package))